Merge pull request #531 from chrisallenlane/auto-config

feat(configs): config auto-generation

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,23 @@
+---
+name: Bug report
+about: Submit a bug report
+title: ''
+labels: 'bug'
+assignees: ''
+
+---
+
+Thanks for submitting a bug report. Please provide the following information:
+
+**A description of the problem**
+Describe the problem here.
+
+**cheat version info**
+Please paste the output of `cheat -v` here.
+
+**cheat configuration info**
+If your bug pertains to how cheatsheets are loaded and/or displayed, please
+paste here the following information:
+
+1. The output of `cheat -d`
+2. The contents of your `conf.yml` file

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: 'enhancement'
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.gitignore

@@ -1 +1,2 @@
 dist
+tags

.travis.yml

@@ -0,0 +1,11 @@
+language: go
+
+go:
+  - 1.13.x
+
+env:
+  - GO111MODULE=on
+
+install: true
+
+script: make ci

CONTRIBUTING.md

@@ -0,0 +1,43 @@
+CONTRIBUTING
+============
+Do you want to contribute to `cheat`? There are a few ways to help:
+
+#### Submit a cheatsheet ####
+Do you have a witty bash one-liner to share? [Open a pull-request][pr] against
+the [cheatsheets][] repository. (The `cheat` executable source code lives in
+[cheat/cheat][cheat]. Cheatsheet content lives in
+[cheat/cheatsheets][cheatsheets].)
+
+#### Report a bug ####
+Did you find a bug? Report it in the [issue tracker][issues]. (But before you
+do, please look through the open issues to make sure that it hasn't already
+ been reported.)
+
+#### Add a feature ####
+Do you have a feature that you'd like to contribute? Propose it in the [issue
+tracker][issues] to discuss with the maintainer whether it would be considered
+for merging.
+
+`cheat` is mostly mature and feature-complete, but may still have some room for
+new features.
+
+#### Add documentation ####
+Did you encounter features, bugs, edge-cases, use-cases, or environment
+considerations that were undocumented or under-documented? Add them to the
+[wiki][]. (You may also open a pull-request against the `README`, if
+appropriate.)
+
+Do you enjoy technical writing or proofreading? Help keep the documentation
+error-free and well-organized.
+
+#### Spread the word ####
+Are you unable to do the above, but still want to contribute? You can help
+`cheat` simply by telling others about it. Share it with friends and coworkers
+that might benefit from using it.
+
+
+[cheat]: https://github.com/cheat/cheat
+[cheatsheets]: https://github.com/cheat/cheatsheets
+[issues]: https://github.com/cheat/cheat/issues 
+[pr]: https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request-from-a-fork
+[wiki]: https://github.com/cheat/cheat/wiki

LICENSE.txt

@@ -0,0 +1,19 @@
+Copyright 2013 Christopher Allen Lane
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

@@ -0,0 +1,154 @@
+# paths
+makefile := $(realpath $(lastword $(MAKEFILE_LIST)))
+cmd_dir  := ./cmd/cheat
+dist_dir := ./dist
+
+# executables
+CAT    := cat
+COLUMN := column
+CTAGS  := ctags
+GO     := go
+GREP   := grep
+GZIP   := gzip --best
+LINT   := revive
+MKDIR  := mkdir -p
+RM     := rm
+SCC    := scc
+SED    := sed
+SORT   := sort
+ZIP    := zip -m
+
+# build flags
+BUILD_FLAGS  := -ldflags="-s -w" -mod vendor -trimpath
+GOBIN        :=
+
+# release binaries
+releases :=                        \
+	$(dist_dir)/cheat-darwin-amd64 \
+	$(dist_dir)/cheat-linux-amd64  \
+	$(dist_dir)/cheat-linux-arm5   \
+	$(dist_dir)/cheat-linux-arm6   \
+	$(dist_dir)/cheat-linux-arm7   \
+	$(dist_dir)/cheat-windows-amd64.exe
+
+## build: builds an executable for your architecture
+.PHONY: build
+build: $(dist_dir) clean generate
+	$(GO) build $(BUILD_FLAGS) -o $(dist_dir)/cheat $(cmd_dir)
+
+## build-release: builds release executables
+.PHONY: build-release
+build-release: $(releases)
+
+## ci: builds a "release" executable for the current architecture (used in ci)
+.PHONY: ci
+ci: | setup prepare build
+
+# cheat-darwin-amd64
+$(dist_dir)/cheat-darwin-amd64: prepare
+	GOARCH=amd64 GOOS=darwin \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
+
+# cheat-linux-amd64
+$(dist_dir)/cheat-linux-amd64: prepare
+	GOARCH=amd64 GOOS=linux \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
+
+# cheat-linux-arm5
+$(dist_dir)/cheat-linux-arm5: prepare
+	GOARCH=arm GOOS=linux GOARM=5 \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
+
+# cheat-linux-arm6
+$(dist_dir)/cheat-linux-arm6: prepare
+	GOARCH=arm GOOS=linux GOARM=6 \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
+
+# cheat-linux-arm7
+$(dist_dir)/cheat-linux-arm7: prepare
+	GOARCH=arm GOOS=linux GOARM=7 \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
+
+# cheat-windows-amd64
+$(dist_dir)/cheat-windows-amd64.exe: prepare
+	GOARCH=amd64 GOOS=windows \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(ZIP) $@.zip $@
+
+# ./dist
+$(dist_dir):
+	$(MKDIR) $(dist_dir)
+
+.PHONY: generate
+generate:
+	$(GO) generate $(cmd_dir)
+
+## install: builds and installs cheat on your PATH
+.PHONY: install
+install:
+	$(GO) install $(BUILD_FLAGS) $(GOBIN) $(cmd_dir) 
+
+## clean: removes compiled executables
+.PHONY: clean
+clean: $(dist_dir)
+	$(RM) -f $(dist_dir)/*
+
+## distclean: removes the tags file
+.PHONY: distclean
+distclean:
+	$(RM) -f tags
+
+## setup: installs revive (linter) and scc (sloc tool)
+.PHONY: setup
+setup:
+	GO111MODULE=off $(GO) get -u github.com/boyter/scc github.com/mgechev/revive
+
+## sloc: counts "semantic lines of code"
+.PHONY: sloc
+sloc:
+	$(SCC) --exclude-dir=vendor
+
+## tags: builds a tags file
+.PHONY: tags
+tags:
+	$(CTAGS) -R --exclude=vendor --languages=go
+
+## vendor: downloads, tidies, and verifies dependencies
+.PHONY: vendor
+vendor:
+	$(GO) mod vendor && $(GO) mod tidy && $(GO) mod verify
+
+## fmt: runs go fmt
+.PHONY: fmt
+fmt:
+	$(GO) fmt ./...
+
+## lint: lints go source files
+.PHONY: lint
+lint: vendor
+	$(LINT) -exclude vendor/... ./...
+
+## vet: vets go source files
+.PHONY: vet
+vet:
+	$(GO) vet ./...
+
+## test: runs unit-tests
+.PHONY: test
+test: 
+	$(GO) test ./...
+
+## check: formats, lints, vets, vendors, and run unit-tests
+.PHONY: check
+check: | vendor fmt lint vet test
+
+.PHONY: prepare
+prepare: | $(dist_dir) clean generate vendor fmt lint vet test
+
+## help: displays this help text
+.PHONY: help
+help:
+	@$(CAT) $(makefile) | \
+	$(SORT)             | \
+	$(GREP) "^##"       | \
+	$(SED) 's/## //g'   | \
+	$(COLUMN) -t -s ':'

README.md

@@ -1,5 +1,8 @@
 cheat
 =====
+
+[![Build Status](https://travis-ci.com/cheat/cheat.svg?branch=master)](https://travis-ci.com/cheat/cheat)
+
 `cheat` allows you to create and view interactive cheatsheets on the
 command-line. It was designed to help remind \*nix system administrators of
 options for commands that they use frequently, but not frequently enough to
@@ -22,7 +25,7 @@ cheat tar
 You will be presented with a cheatsheet resembling the following:
 
 ```sh
-# To extract an uncompressed archive: 
+# To extract an uncompressed archive:
 tar -xvf '/path/to/foo.tar'
 
 # To extract a .gz archive:
@@ -122,6 +125,11 @@ If a user attempts to edit a cheatsheet on a read-only cheatpath, `cheat` will
 transparently copy that sheet to a writeable directory before opening it for
 editing.
 
+### Directory-scoped Cheatpaths ###
+At times, it can be useful to closely associate cheatsheets with a directory on
+your filesystem. `cheat` facilitates this by searching for a `.cheat` folder in
+the current working directory. If found, the `.cheat` directory will
+(temporarily) be added to the cheatpaths.
 
 Usage
 -----
@@ -175,11 +183,11 @@ To search (by regex) for cheatsheets that contain an IP address:
 cheat -r -s '(?:[0-9]{1,3}\.){3}[0-9]{1,3}'
 ```
 
-Flags may be combined in inuitive ways. Example: to search sheets on the
+Flags may be combined in intuitive ways. Example: to search sheets on the
 "personal" cheatpath that are tagged with "networking" and match a regex:
 
 ```sh
-cheat -p personal -t networking -s --regex '(?:[0-9]{1,3}\.){3}[0-9]{1,3}'
+cheat -p personal -t networking --regex -s '(?:[0-9]{1,3}\.){3}[0-9]{1,3}'
 ```
 
 

bin/build_devel.sh

@@ -1,13 +1,15 @@
 #!/bin/bash
 
-# locate the lambo project root
+# TODO: this script has been made obsolete by the Makefile, yet downstream
+# package managers plausibly rely on it for compiling locally. Remove this file
+# after downstream maintainers have had time to modify their packages to simply
+# invoke `make` in the project root.
+
+# locate the cheat project root
 BINDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 APPDIR=$(readlink -f "$BINDIR/..")
 
 # compile the executable
-cd "$APPDIR/cmd/cheat"
-go clean && go generate && go build
-mv "$APPDIR/cmd/cheat/cheat" "$APPDIR/dist/cheat"
+cd $APPDIR
 
-# display a build checksum
-md5sum "$APPDIR/dist/cheat"
+make

bin/build_release.sh

@@ -1,14 +0,0 @@
-#!/bin/bash
-
-# locate the lambo project root
-BINDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-APPDIR=$(readlink -f "$BINDIR/..")
-
-# build embeds
-cd "$APPDIR/cmd/cheat"
-go clean && go generate
-
-# compile AMD64 for Linux, OSX, and Windows
-env GOOS=darwin  GOARCH=amd64 go build -o "$APPDIR/dist/cheat-darwin-amd64"  "$APPDIR/cmd/cheat"
-env GOOS=linux   GOARCH=amd64 go build -o "$APPDIR/dist/cheat-linux-amd64"   "$APPDIR/cmd/cheat"
-env GOOS=windows GOARCH=amd64 go build -o "$APPDIR/dist/cheat-win-amd64.exe" "$APPDIR/cmd/cheat"

bin/deps.sh

@@ -1,11 +0,0 @@
-#!/bin/bash
-
-# This script installs all Go dependencies required for
-# building `cheat` locally.
-
-go get -u github.com/alecthomas/chroma
-go get -u github.com/davecgh/go-spew/spew
-go get -u github.com/docopt/docopt-go
-go get -u github.com/mgutz/ansi
-go get -u github.com/mitchellh/go-homedir
-go get -u github.com/tj/front

cmd/cheat/cmd_list.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"os"
+	"regexp"
 	"sort"
 	"strings"
 	"text/tabwriter"
@@ -45,6 +46,39 @@ func cmdList(opts map[string]interface{}, conf config.Config) {
 		return flattened[i].Title < flattened[j].Title
 	})
 
+	// filter if <cheatsheet> was specified
+	// NB: our docopt specification is misleading here. When used in conjunction
+	// with `-l`, `<cheatsheet>` is really a pattern against which to filter
+	// sheet titles.
+	if opts["<cheatsheet>"] != nil {
+
+		// initialize a slice of filtered sheets
+		filtered := []sheet.Sheet{}
+
+		// initialize our filter pattern
+		pattern := "(?i)" + opts["<cheatsheet>"].(string)
+
+		// compile the regex
+		reg, err := regexp.Compile(pattern)
+		if err != nil {
+			fmt.Fprintln(
+				os.Stderr,
+				fmt.Sprintf("failed to compile regexp: %s, %v", pattern, err),
+			)
+			os.Exit(1)
+		}
+
+		// iterate over each cheatsheet, and pass-through those which match the
+		// filter pattern
+		for _, s := range flattened {
+			if reg.MatchString(s.Title) {
+				filtered = append(filtered, s)
+			}
+		}
+
+		flattened = filtered
+	}
+
 	// exit early if no cheatsheets are available
 	if len(flattened) == 0 {
 		os.Exit(0)

cmd/cheat/cmd_remove.go

@@ -0,0 +1,55 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/cheat/cheat/internal/config"
+	"github.com/cheat/cheat/internal/sheets"
+)
+
+// cmdRemove opens a cheatsheet for editing (or creates it if it doesn't exist).
+func cmdRemove(opts map[string]interface{}, conf config.Config) {
+
+	cheatsheet := opts["--rm"].(string)
+
+	// load the cheatsheets
+	cheatsheets, err := sheets.Load(conf.Cheatpaths)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to list cheatsheets: %v", err))
+		os.Exit(1)
+	}
+
+	// filter cheatcheats by tag if --tag was provided
+	if opts["--tag"] != nil {
+		cheatsheets = sheets.Filter(
+			cheatsheets,
+			strings.Split(opts["--tag"].(string), ","),
+		)
+	}
+
+	// consolidate the cheatsheets found on all paths into a single map of
+	// `title` => `sheet` (ie, allow more local cheatsheets to override less
+	// local cheatsheets)
+	consolidated := sheets.Consolidate(cheatsheets)
+
+	// fail early if the requested cheatsheet does not exist
+	sheet, ok := consolidated[cheatsheet]
+	if !ok {
+		fmt.Fprintln(os.Stderr, fmt.Sprintf("no cheatsheet found for '%s'.\n", cheatsheet))
+		os.Exit(1)
+	}
+
+	// fail early if the sheet is read-only
+	if sheet.ReadOnly {
+		fmt.Fprintln(os.Stderr, fmt.Sprintf("cheatsheet '%s' is read-only.", cheatsheet))
+		os.Exit(1)
+	}
+
+	// otherwise, attempt to delete the sheet
+	if err := os.Remove(sheet.Path); err != nil {
+		fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to delete sheet: %s, %v", sheet.Title, err))
+		os.Exit(1)
+	}
+}

cmd/cheat/cmd_search.go

@@ -38,12 +38,6 @@ func cmdSearch(opts map[string]interface{}, conf config.Config) {
 	// sort the cheatsheets alphabetically, and search for matches
 	for _, sheet := range sheets.Sort(consolidated) {
 
-		// colorize output?
-		colorize := false
-		if conf.Colorize == true || opts["--colorize"] == true {
-			colorize = true
-		}
-
 		// assume that we want to perform a case-insensitive search for <phrase>
 		pattern := "(?i)" + phrase
 
@@ -55,12 +49,12 @@ func cmdSearch(opts map[string]interface{}, conf config.Config) {
 		// compile the regex
 		reg, err := regexp.Compile(pattern)
 		if err != nil {
-			fmt.Errorf("failed to compile regexp: %s, %v", pattern, err)
+			fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to compile regexp: %s, %v", pattern, err))
 			os.Exit(1)
 		}
 
 		// search the sheet
-		matches := sheet.Search(reg, colorize)
+		matches := sheet.Search(reg, conf.Color(opts))
 
 		// display the results
 		if len(matches) > 0 {

cmd/cheat/cmd_tags.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/cheat/cheat/internal/config"
+	"github.com/cheat/cheat/internal/sheets"
+)
+
+// cmdTags lists all tags in use.
+func cmdTags(opts map[string]interface{}, conf config.Config) {
+
+	// load the cheatsheets
+	cheatsheets, err := sheets.Load(conf.Cheatpaths)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to list cheatsheets: %v", err))
+		os.Exit(1)
+	}
+
+	// write sheet tags to stdout
+	for _, tag := range sheets.Tags(cheatsheets) {
+		fmt.Println(tag)
+	}
+}

cmd/cheat/cmd_view.go

@@ -43,8 +43,7 @@ func cmdView(opts map[string]interface{}, conf config.Config) {
 		os.Exit(0)
 	}
 
-	// if colorization is not desired, output un-colorized text and exit
-	if conf.Colorize == false && opts["--colorize"] == false {
+	if !conf.Color(opts) {
 		fmt.Print(sheet.Text)
 		os.Exit(0)
 	}

cmd/cheat/docopt.txt

@@ -5,13 +5,15 @@ Options:
   --init                Write a default config file to stdout
   -c --colorize         Colorize output
   -d --directories      List cheatsheet directories
-  -e --edit=<sheet>     Edit cheatsheet
+  -e --edit=<sheet>     Edit <sheet>
   -l --list             List cheatsheets
   -p --path=<name>      Return only sheets found on path <name>
   -r --regex            Treat search <phrase> as a regex
   -s --search=<phrase>  Search cheatsheets for <phrase>
   -t --tag=<tag>        Return only sheets matching <tag>
+  -T --tags             List all tags in use
   -v --version          Print the version number
+  --rm=<sheet>          Remove (delete) <sheet>
 
 Examples:
 
@@ -33,6 +35,12 @@ Examples:
   To list all available cheatsheets:
     cheat -l
 
+  To list all cheatsheets whose titles match "apt":
+    cheat -l apt
+
+  To list all tags in use:
+    cheat -T
+
   To list available cheatsheets that are tagged as "personal":
     cheat -l -t personal
 
@@ -41,3 +49,6 @@ Examples:
 
   To search (by regex) for cheatsheets that contain an IP address:
     cheat -c -r -s '(?:[0-9]{1,3}\.){3}[0-9]{1,3}'
+
+  To remove (delete) the foo/bar cheatsheet:
+    cheat --rm foo/bar

cmd/cheat/main.go

@@ -13,7 +13,7 @@ import (
 	"github.com/cheat/cheat/internal/config"
 )
 
-const version = "3.0.0-rc0"
+const version = "3.4.0"
 
 func main() {
 
@@ -31,15 +31,37 @@ func main() {
 		os.Exit(0)
 	}
 
-	// load the config file
-	confpath, err := config.Path(runtime.GOOS)
+	// load the os-specifc paths at which the config file may be located
+	confpaths, err := config.Paths(runtime.GOOS)
 	if err != nil {
-		fmt.Fprintln(os.Stderr, "could not locate config file")
+		fmt.Fprintf(os.Stderr, "failed to load config: %v\n", err)
 		os.Exit(1)
 	}
 
+	// search for the config file in the above paths
+	confpath, err := config.Path(confpaths)
+	if err != nil {
+
+		// the config file does not exist, so we'll try to create one
+		if err = config.Init(confpaths[0], configs()); err != nil {
+			fmt.Fprintf(
+				os.Stderr,
+				"failed to create config file: %s: %v\n",
+				confpaths[0],
+				err,
+			)
+			os.Exit(1)
+		}
+
+		confpath = confpaths[0]
+
+		fmt.Printf("Created config file: %s\n", confpath)
+		fmt.Println("Please edit this file now to configure cheat.")
+		os.Exit(0)
+	}
+
 	// initialize the configs
-	conf, err := config.New(opts, confpath)
+	conf, err := config.New(opts, confpath, true)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "failed to load config: %v\n", err)
 		os.Exit(1)
@@ -76,9 +98,15 @@ func main() {
 	case opts["--list"].(bool):
 		cmd = cmdList
 
+	case opts["--tags"].(bool):
+		cmd = cmdTags
+
 	case opts["--search"] != nil:
 		cmd = cmdSearch
 
+	case opts["--rm"] != nil:
+		cmd = cmdRemove
+
 	case opts["<cheatsheet>"] != nil:
 		cmd = cmdView
 

cmd/cheat/str_config.go

@@ -32,9 +32,9 @@ formatter: terminal16m
 # "upstream" cheatsheets.
 #
 # But what if you want to view the "upstream" cheatsheets instead of your own?
-# Cheatsheets may be filtered via 'cheat -f <tag>' in combination with other
+# Cheatsheets may be filtered via 'cheat -t <tag>' in combination with other
 # commands. So, if you want to view the 'tar' cheatsheet that is tagged as
-# 'community' rather than your own, you can use: cheat tar -f community
+# 'community' rather than your own, you can use: cheat tar -t community
 cheatpaths:
 
   # Paths that come earlier are considered to be the most "global", and will
@@ -43,23 +43,34 @@ cheatpaths:
   #
   # Note that the paths and tags listed below are just examples. You may freely
   # change them to suit your needs.
+  #
+  # TODO: regarding community cheatsheets: these must be installed separately.
+  # You may download them here:
+  #
+  # https://github.com/cheat/cheatsheets
+  #
+  # Once downloaded, ensure that 'path' below points to the location at which
+  # you downloaded the community cheatsheets.
   - name: community
-    path: ~/.dotfiles/cheat/community
+    path: ~/cheat/cheatsheets/community
     tags: [ community ]
     readonly: true
 
-  # Maybe your company or department maintains a repository of cheatsheets as
-  # well. It's probably sensible to list those second.
-  - name: work
-    path: ~/.dotfiles/cheat/work
-    tags: [ work ]
-    readonly: false
-
   # If you have personalized cheatsheets, list them last. They will take
   # precedence over the more global cheatsheets.
   - name: personal
-    path: ~/.dotfiles/cheat/personal
+    path: ~/cheat/cheatsheets/personal
     tags: [ personal ]
     readonly: false
+
+  # While it requires no specific configuration here, it's also worth noting
+  # that 'cheat' will automatically append directories named '.cheat' within
+  # the current working directory to the 'cheatpath'. This can be very useful
+  # if you'd like to closely associate cheatsheets with, for example, a
+  # directory containing source code.
+  #
+  # Such "directory-scoped" cheatsheets will be treated as the most "local"
+  # cheatsheets, and will override less "local" cheatsheets. Likewise,
+  # directory-scoped cheatsheets will always be editable ('readonly: false').
 `)
 }

cmd/cheat/str_usage.go

@@ -14,13 +14,15 @@ Options:
   --init                Write a default config file to stdout
   -c --colorize         Colorize output
   -d --directories      List cheatsheet directories
-  -e --edit=<sheet>     Edit cheatsheet
+  -e --edit=<sheet>     Edit <sheet>
   -l --list             List cheatsheets
   -p --path=<name>      Return only sheets found on path <name>
   -r --regex            Treat search <phrase> as a regex
   -s --search=<phrase>  Search cheatsheets for <phrase>
   -t --tag=<tag>        Return only sheets matching <tag>
+  -T --tags             List all tags in use
   -v --version          Print the version number
+  --rm=<sheet>          Remove (delete) <sheet>
 
 Examples:
 
@@ -42,6 +44,12 @@ Examples:
   To list all available cheatsheets:
     cheat -l
 
+  To list all cheatsheets whose titles match "apt":
+    cheat -l apt
+
+  To list all tags in use:
+    cheat -T
+
   To list available cheatsheets that are tagged as "personal":
     cheat -l -t personal
 
@@ -50,5 +58,8 @@ Examples:
 
   To search (by regex) for cheatsheets that contain an IP address:
     cheat -c -r -s '(?:[0-9]{1,3}\.){3}[0-9]{1,3}'
+
+  To remove (delete) the foo/bar cheatsheet:
+    cheat --rm foo/bar
 `)
 }

configs/conf.yml

@@ -23,9 +23,9 @@ formatter: terminal16m
 # "upstream" cheatsheets.
 #
 # But what if you want to view the "upstream" cheatsheets instead of your own?
-# Cheatsheets may be filtered via 'cheat -f <tag>' in combination with other
+# Cheatsheets may be filtered via 'cheat -t <tag>' in combination with other
 # commands. So, if you want to view the 'tar' cheatsheet that is tagged as
-# 'community' rather than your own, you can use: cheat tar -f community
+# 'community' rather than your own, you can use: cheat tar -t community
 cheatpaths:
 
   # Paths that come earlier are considered to be the most "global", and will
@@ -34,21 +34,32 @@ cheatpaths:
   #
   # Note that the paths and tags listed below are just examples. You may freely
   # change them to suit your needs.
+  #
+  # TODO: regarding community cheatsheets: these must be installed separately.
+  # You may download them here:
+  #
+  # https://github.com/cheat/cheatsheets
+  #
+  # Once downloaded, ensure that 'path' below points to the location at which
+  # you downloaded the community cheatsheets.
   - name: community
-    path: ~/.dotfiles/cheat/community
+    path: ~/cheat/cheatsheets/community
     tags: [ community ]
     readonly: true
 
-  # Maybe your company or department maintains a repository of cheatsheets as
-  # well. It's probably sensible to list those second.
-  - name: work
-    path: ~/.dotfiles/cheat/work
-    tags: [ work ]
-    readonly: false
-
   # If you have personalized cheatsheets, list them last. They will take
   # precedence over the more global cheatsheets.
   - name: personal
-    path: ~/.dotfiles/cheat/personal
+    path: ~/cheat/cheatsheets/personal
     tags: [ personal ]
     readonly: false
+
+  # While it requires no specific configuration here, it's also worth noting
+  # that 'cheat' will automatically append directories named '.cheat' within
+  # the current working directory to the 'cheatpath'. This can be very useful
+  # if you'd like to closely associate cheatsheets with, for example, a
+  # directory containing source code.
+  #
+  # Such "directory-scoped" cheatsheets will be treated as the most "local"
+  # cheatsheets, and will override less "local" cheatsheets. Likewise,
+  # directory-scoped cheatsheets will always be editable ('readonly: false').

go.mod

@@ -0,0 +1,14 @@
+module github.com/cheat/cheat
+
+go 1.13
+
+require (
+	github.com/alecthomas/chroma v0.7.1
+	github.com/davecgh/go-spew v1.1.1
+	github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815
+	github.com/mattn/go-isatty v0.0.12
+	github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b
+	github.com/mitchellh/go-homedir v1.1.0
+	gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0
+	gopkg.in/yaml.v2 v2.2.8
+)

go.sum

@@ -0,0 +1,48 @@
+github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38 h1:smF2tmSOzy2Mm+0dGI2AIUHY+w0BUc+4tn40djz7+6U=
+github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38/go.mod h1:r7bzyVFMNntcxPZXK3/+KdruV1H5KSlyVY0gc+NgInI=
+github.com/alecthomas/chroma v0.7.1 h1:G1i02OhUbRi2nJxcNkwJaY/J1gHXj9tt72qN6ZouLFQ=
+github.com/alecthomas/chroma v0.7.1/go.mod h1:gHw09mkX1Qp80JlYbmN9L3+4R5o6DJJ3GRShh+AICNc=
+github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721 h1:JHZL0hZKJ1VENNfmXvHbgYlbUOvpzYzvy2aZU5gXVeo=
+github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721/go.mod h1:QO9JBoKquHd+jz9nshCh40fOfO+JzsoXy8qTHF68zU0=
+github.com/alecthomas/kong v0.2.1-0.20190708041108-0548c6b1afae/go.mod h1:+inYUSluD+p4L8KdviBSgzcqEjUQOfC5fQDRFuc36lI=
+github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 h1:p9Sln00KOTlrYkxI1zYWl1QLnEqAqEARBEYa8FQnQcY=
+github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
+github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964 h1:y5HC9v93H5EPKqaS1UYVg1uYah5Xf51mBfIoWehClUQ=
+github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964/go.mod h1:Xd9hchkHSWYkEqJwUGisez3G1QY8Ryz0sdWrLPMGjLk=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dlclark/regexp2 v1.1.6 h1:CqB4MjHw0MFCDj+PHHjiESmHX+N7t0tJzKvC6M97BRg=
+github.com/dlclark/regexp2 v1.1.6/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
+github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815 h1:bWDMxwH3px2JBh6AyO7hdCn/PkvCZXii8TGj7sbtEbQ=
+github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
+github.com/mattn/go-colorable v0.0.9 h1:UVL0vNpWh04HeJXV0KLcaT7r06gOH2l4OW6ddYRUIY4=
+github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
+github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=
+github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
+github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
+github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b h1:j7+1HpAFS1zy5+Q4qx1fWh90gTKwiN4QCGoY9TWyyO4=
+github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
+github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
+github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
+github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sergi/go-diff v1.0.0 h1:Kpca3qRNrduNnOQeazBd0ysaKrUJiIuISHxogkT9RPQ=
+github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+golang.org/x/sys v0.0.0-20181128092732-4ed8d59d0b35 h1:YAFjXN64LMvktoUZH9zgY4lGc/msGN7HQfoSuKCgaDU=
+golang.org/x/sys v0.0.0-20181128092732-4ed8d59d0b35/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42 h1:vEOn+mP2zCOVzKckCZy6YsCtDblrpj/w7B9nxGNELpg=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0 h1:POO/ycCATvegFmVuPpQzZFJ+pGZeX22Ufu6fibxDVjU=
+gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0/go.mod h1:WDnlLJ4WF5VGsH/HVa3CI79GS0ol3YnhVnKP89i0kNg=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

internal/cheatpath/cheatpath.go

@@ -2,8 +2,8 @@ package cheatpath
 
 // Cheatpath encapsulates cheatsheet path information
 type Cheatpath struct {
-	Name     string   `yaml:name`
-	Path     string   `yaml:path`
-	ReadOnly bool     `yaml:readonly`
-	Tags     []string `yaml:tags`
+	Name     string   `yaml:"name"`
+	Path     string   `yaml:"path"`
+	ReadOnly bool     `yaml:"readonly"`
+	Tags     []string `yaml:"tags"`
 }

internal/config/color.go

@@ -0,0 +1,26 @@
+package config
+
+import (
+	"os"
+
+	"github.com/mattn/go-isatty"
+)
+
+// Color indicates whether colorization should be applied to the output
+func (c *Config) Color(opts map[string]interface{}) bool {
+
+	// default to the colorization specified in the configs...
+	colorize := c.Colorize
+
+	// ... however, only apply colorization if we're writing to a tty...
+	if !isatty.IsTerminal(os.Stdout.Fd()) && !isatty.IsCygwinTerminal(os.Stdout.Fd()) {
+		colorize = false
+	}
+
+	// ... *unless* the --colorize flag was passed
+	if opts["--colorize"] == true {
+		colorize = true
+	}
+
+	return colorize
+}

internal/config/config.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 
 	cp "github.com/cheat/cheat/internal/cheatpath"
 
@@ -13,15 +14,15 @@ import (
 
 // Config encapsulates configuration parameters
 type Config struct {
-	Colorize   bool           `yaml:colorize`
-	Editor     string         `yaml:editor`
-	Cheatpaths []cp.Cheatpath `yaml:cheatpaths`
-	Style      string         `yaml:style`
-	Formatter  string         `yaml:formatter`
+	Colorize   bool           `yaml:"colorize"`
+	Editor     string         `yaml:"editor"`
+	Cheatpaths []cp.Cheatpath `yaml:"cheatpaths"`
+	Style      string         `yaml:"style"`
+	Formatter  string         `yaml:"formatter"`
 }
 
 // New returns a new Config struct
-func New(opts map[string]interface{}, confPath string) (Config, error) {
+func New(opts map[string]interface{}, confPath string, resolve bool) (Config, error) {
 
 	// read the config file
 	buf, err := ioutil.ReadFile(confPath)
@@ -38,14 +39,54 @@ func New(opts map[string]interface{}, confPath string) (Config, error) {
 		return Config{}, fmt.Errorf("could not unmarshal yaml: %v", err)
 	}
 
-	// expand ~ in config paths
+	// if a .cheat directory exists locally, append it to the cheatpaths
+	cwd, err := os.Getwd()
+	if err != nil {
+		return Config{}, fmt.Errorf("failed to get cwd: %v", err)
+	}
+
+	local := filepath.Join(cwd, ".cheat")
+	if _, err := os.Stat(local); err == nil {
+		path := cp.Cheatpath{
+			Name:     "cwd",
+			Path:     local,
+			ReadOnly: false,
+			Tags:     []string{},
+		}
+
+		conf.Cheatpaths = append(conf.Cheatpaths, path)
+	}
+
+	// process cheatpaths
 	for i, cheatpath := range conf.Cheatpaths {
 
+		// expand ~ in config paths
 		expanded, err := homedir.Expand(cheatpath.Path)
 		if err != nil {
 			return Config{}, fmt.Errorf("failed to expand ~: %v", err)
 		}
 
+		// follow symlinks
+		//
+		// NB: `resolve` is an ugly kludge that exists for the sake of unit-tests.
+		// It's necessary because `EvalSymlinks` will error if the symlink points
+		// to a non-existent location on the filesystem. When unit-testing,
+		// however, we don't want to have dependencies on the filesystem. As such,
+		// `resolve` is a switch that allows us to turn off symlink resolution when
+		// running the config tests.
+		if resolve {
+			evaled, err := filepath.EvalSymlinks(expanded)
+			if err != nil {
+				return Config{}, fmt.Errorf(
+					"failed to resolve symlink: %s: %v",
+					expanded,
+					err,
+				)
+			}
+
+			expanded = evaled
+		}
+
 		conf.Cheatpaths[i].Path = expanded
 	}
 

internal/config/config_test.go

@@ -17,7 +17,7 @@ import (
 func TestConfigSuccessful(t *testing.T) {
 
 	// initialize a config
-	conf, err := New(map[string]interface{}{}, mock.Path("conf/conf.yml"))
+	conf, err := New(map[string]interface{}{}, mock.Path("conf/conf.yml"), false)
 	if err != nil {
 		t.Errorf("failed to parse config file: %v", err)
 	}
@@ -69,7 +69,7 @@ func TestConfigSuccessful(t *testing.T) {
 func TestConfigFailure(t *testing.T) {
 
 	// attempt to read a non-existent config file
-	_, err := New(map[string]interface{}{}, "/does-not-exit")
+	_, err := New(map[string]interface{}{}, "/does-not-exit", false)
 	if err == nil {
 		t.Errorf("failed to error on unreadable config")
 	}
@@ -84,14 +84,14 @@ func TestEmptyEditor(t *testing.T) {
 	os.Setenv("EDITOR", "")
 
 	// initialize a config
-	conf, err := New(map[string]interface{}{}, mock.Path("conf/empty.yml"))
+	conf, err := New(map[string]interface{}{}, mock.Path("conf/empty.yml"), false)
 	if err == nil {
 		t.Errorf("failed to return an error on empty editor")
 	}
 
 	// set editor, and assert that it is respected
 	os.Setenv("EDITOR", "foo")
-	conf, err = New(map[string]interface{}{}, mock.Path("conf/empty.yml"))
+	conf, err = New(map[string]interface{}{}, mock.Path("conf/empty.yml"), false)
 	if err != nil {
 		t.Errorf("failed to init configs: %v", err)
 	}
@@ -101,7 +101,7 @@ func TestEmptyEditor(t *testing.T) {
 
 	// set visual, and assert that it overrides editor
 	os.Setenv("VISUAL", "bar")
-	conf, err = New(map[string]interface{}{}, mock.Path("conf/empty.yml"))
+	conf, err = New(map[string]interface{}{}, mock.Path("conf/empty.yml"), false)
 	if err != nil {
 		t.Errorf("failed to init configs: %v", err)
 	}

internal/config/init.go

@@ -0,0 +1,24 @@
+package config
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+)
+
+// Init initializes a config file
+func Init(confpath string, configs string) error {
+
+	// assert that the config directory exists
+	if err := os.MkdirAll(filepath.Dir(confpath), 0755); err != nil {
+		return fmt.Errorf("failed to create directory: %v", err)
+	}
+
+	// write the config file
+	if err := ioutil.WriteFile(confpath, []byte(configs), 0644); err != nil {
+		return fmt.Errorf("failed to create file: %v", err)
+	}
+
+	return nil
+}

internal/config/path.go

@@ -3,58 +3,10 @@ package config
 import (
 	"fmt"
 	"os"
-	"path"
-
-	"github.com/mitchellh/go-homedir"
 )
 
 // Path returns the config file path
-func Path(sys string) (string, error) {
-
-	var paths []string
-
-	// if CHEAT_CONFIG_PATH is set, return it
-	if os.Getenv("CHEAT_CONFIG_PATH") != "" {
-
-		// expand ~
-		expanded, err := homedir.Expand(os.Getenv("CHEAT_CONFIG_PATH"))
-		if err != nil {
-			return "", fmt.Errorf("failed to expand ~: %v", err)
-		}
-
-		return expanded, nil
-
-		// OSX config paths
-	} else if sys == "darwin" {
-
-		paths = []string{
-			path.Join(os.Getenv("XDG_CONFIG_HOME"), "/cheat/conf.yml"),
-			path.Join(os.Getenv("HOME"), ".config/cheat/conf.yml"),
-			path.Join(os.Getenv("HOME"), ".cheat/conf.yml"),
-		}
-
-		// Linux config paths
-	} else if sys == "linux" {
-
-		paths = []string{
-			path.Join(os.Getenv("XDG_CONFIG_HOME"), "/cheat/conf.yml"),
-			path.Join(os.Getenv("HOME"), ".config/cheat/conf.yml"),
-			path.Join(os.Getenv("HOME"), ".cheat/conf.yml"),
-			"/etc/cheat/conf.yml",
-		}
-
-		// Windows config paths
-	} else if sys == "windows" {
-
-		paths = []string{
-			fmt.Sprintf("%s/cheat/conf.yml", os.Getenv("APPDATA")),
-			fmt.Sprintf("%s/cheat/conf.yml", os.Getenv("PROGRAMDATA")),
-		}
-
-		// Unsupported platforms
-	} else {
-		return "", fmt.Errorf("unsupported os: %s", sys)
-	}
+func Path(paths []string) (string, error) {
 
 	// check if the config file exists on any paths
 	for _, p := range paths {

internal/config/paths.go

@@ -0,0 +1,42 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path"
+
+	"github.com/mitchellh/go-homedir"
+)
+
+// Paths returns config file paths that are appropriate for the operating
+// system
+func Paths(sys string) ([]string, error) {
+
+	// if CHEAT_CONFIG_PATH is set, return it
+	if os.Getenv("CHEAT_CONFIG_PATH") != "" {
+
+		// expand ~
+		expanded, err := homedir.Expand(os.Getenv("CHEAT_CONFIG_PATH"))
+		if err != nil {
+			return []string{}, fmt.Errorf("failed to expand ~: %v", err)
+		}
+
+		return []string{expanded}, nil
+	}
+
+	switch sys {
+	case "darwin", "linux", "freebsd":
+		return []string{
+			path.Join(os.Getenv("XDG_CONFIG_HOME"), "/cheat/conf.yml"),
+			path.Join(os.Getenv("HOME"), ".config/cheat/conf.yml"),
+			path.Join(os.Getenv("HOME"), ".cheat/conf.yml"),
+		}, nil
+	case "windows":
+		return []string{
+			fmt.Sprintf("%s/cheat/conf.yml", os.Getenv("APPDATA")),
+			fmt.Sprintf("%s/cheat/conf.yml", os.Getenv("PROGRAMDATA")),
+		}, nil
+	default:
+		return []string{}, fmt.Errorf("unsupported os: %s", sys)
+	}
+}

internal/frontmatter/frontmatter.go

@@ -0,0 +1,34 @@
+package frontmatter
+
+import (
+	"strings"
+
+	"gopkg.in/yaml.v1"
+)
+
+// Frontmatter encapsulates cheatsheet frontmatter data
+type Frontmatter struct {
+	Tags   []string
+	Syntax string
+}
+
+// Parse parses cheatsheet frontmatter
+func Parse(markdown string) (string, Frontmatter, error) {
+
+	// specify the frontmatter delimiter
+	delim := "---"
+
+	// initialize a frontmatter struct
+	var fm Frontmatter
+
+	// if the markdown does not contain frontmatter, pass it through unmodified
+	if !strings.HasPrefix(markdown, delim) {
+		return strings.TrimSpace(markdown), fm, nil
+	}
+
+	// otherwise, split the frontmatter and cheatsheet text
+	parts := strings.SplitN(markdown, delim, 3)
+	err := yaml.Unmarshal([]byte(parts[1]), &fm)
+
+	return strings.TrimSpace(parts[2]), fm, err
+}

internal/frontmatter/frontmatter_test.go

@@ -0,0 +1,71 @@
+package frontmatter
+
+import (
+	"testing"
+)
+
+// TestHasFrontmatter asserts that markdown is properly parsed when it contains
+// frontmatter
+func TestHasFrontmatter(t *testing.T) {
+
+	// stub our cheatsheet content
+	markdown := `---
+syntax: go
+tags: [ test ]
+---
+To foo the bar: baz`
+
+	// parse the frontmatter
+	text, fm, err := Parse(markdown)
+
+	// assert expectations
+	if err != nil {
+		t.Errorf("failed to parse markdown: %v", err)
+	}
+
+	want := "To foo the bar: baz"
+	if text != want {
+		t.Errorf("failed to parse text: want: %s, got: %s", want, text)
+	}
+
+	want = "go"
+	if fm.Syntax != want {
+		t.Errorf("failed to parse syntax: want: %s, got: %s", want, fm.Syntax)
+	}
+
+	want = "test"
+	if fm.Tags[0] != want {
+		t.Errorf("failed to parse tags: want: %s, got: %s", want, fm.Tags[0])
+	}
+	if len(fm.Tags) != 1 {
+		t.Errorf("failed to parse tags: want: len 0, got: len %d", len(fm.Tags))
+	}
+}
+
+// TestHasFrontmatter asserts that markdown is properly parsed when it does not
+// contain frontmatter
+func TestHasNoFrontmatter(t *testing.T) {
+
+	// stub our cheatsheet content
+	markdown := "To foo the bar: baz"
+
+	// parse the frontmatter
+	text, fm, err := Parse(markdown)
+
+	// assert expectations
+	if err != nil {
+		t.Errorf("failed to parse markdown: %v", err)
+	}
+
+	if text != markdown {
+		t.Errorf("failed to parse text: want: %s, got: %s", markdown, text)
+	}
+
+	if fm.Syntax != "" {
+		t.Errorf("failed to parse syntax: want: '', got: %s", fm.Syntax)
+	}
+
+	if len(fm.Tags) != 0 {
+		t.Errorf("failed to parse tags: want: len 0, got: len %d", len(fm.Tags))
+	}
+}

internal/sheet/sheet.go

@@ -4,17 +4,10 @@ import (
 	"fmt"
 	"io/ioutil"
 	"sort"
-	"strings"
 
-	"github.com/tj/front"
+	"github.com/cheat/cheat/internal/frontmatter"
 )
 
-// frontmatter is an un-exported helper struct used in parsing cheatsheets
-type frontmatter struct {
-	Tags   []string
-	Syntax string
-}
-
 // Sheet encapsulates sheet information
 type Sheet struct {
 	Title    string
@@ -39,9 +32,8 @@ func New(
 		return Sheet{}, fmt.Errorf("failed to read file: %s, %v", path, err)
 	}
 
-	// parse the front-matter
-	var fm frontmatter
-	text, err := front.Unmarshal(markdown, &fm)
+	// parse the cheatsheet frontmatter
+	text, fm, err := frontmatter.Parse(string(markdown))
 	if err != nil {
 		return Sheet{}, fmt.Errorf("failed to parse front-matter: %v", err)
 	}
@@ -56,7 +48,7 @@ func New(
 	return Sheet{
 		Title:    title,
 		Path:     path,
-		Text:     strings.TrimSpace(string(text)) + "\n",
+		Text:     text + "\n",
 		Tags:     tags,
 		Syntax:   fm.Syntax,
 		ReadOnly: readOnly,

internal/sheets/load.go

@@ -45,11 +45,16 @@ func Load(cheatpaths []cp.Cheatpath) ([]map[string]sheet.Sheet, error) {
 				// accessed. Eg: `cheat tar` - `tar` is the title)
 				title := strings.TrimPrefix(
 					strings.TrimPrefix(path, cheatpath.Path),
-					"/",
+					string(os.PathSeparator),
 				)
 
-				// ignore dotfiles. Otherwise, we'll likely load .git/*
-				if strings.HasPrefix(title, ".") {
+				// ignore hidden files and directories. Otherwise, we'll likely load
+				// .git/* and .DS_Store.
+				//
+				// NB: this is still somewhat brittle in that it will miss files
+				// contained within hidden directories in the middle of a path, though
+				// that should not realistically occur.
+				if strings.HasPrefix(title, ".") || strings.HasPrefix(info.Name(), ".") {
 					return nil
 				}
 

internal/sheets/tags.go

@@ -0,0 +1,36 @@
+package sheets
+
+import (
+	"sort"
+
+	"github.com/cheat/cheat/internal/sheet"
+)
+
+// Tags returns a slice of all tags in use in any sheet
+func Tags(cheatpaths []map[string]sheet.Sheet) []string {
+
+	// create a map of all tags in use in any sheet
+	tags := make(map[string]bool)
+
+	// iterate over all tags on all sheets on all cheatpaths
+	for _, path := range cheatpaths {
+		for _, sheet := range path {
+			for _, tag := range sheet.Tags {
+				tags[tag] = true
+			}
+		}
+	}
+
+	// restructure the map into a slice
+	sorted := []string{}
+	for tag := range tags {
+		sorted = append(sorted, tag)
+	}
+
+	// sort the slice
+	sort.Slice(sorted, func(i, j int) bool {
+		return sorted[i] < sorted[j]
+	})
+
+	return sorted
+}

internal/sheets/tags_test.go

@@ -0,0 +1,51 @@
+package sheets
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/davecgh/go-spew/spew"
+
+	"github.com/cheat/cheat/internal/sheet"
+)
+
+// TestTags asserts that cheetsheet tags are properly returned
+func TestTags(t *testing.T) {
+
+	// mock cheatsheets available on multiple cheatpaths
+	cheatpaths := []map[string]sheet.Sheet{
+
+		// mock community cheatsheets
+		map[string]sheet.Sheet{
+			"foo": sheet.Sheet{Title: "foo", Tags: []string{"alpha"}},
+			"bar": sheet.Sheet{Title: "bar", Tags: []string{"alpha", "bravo"}},
+		},
+
+		// mock local cheatsheets
+		map[string]sheet.Sheet{
+			"bar": sheet.Sheet{Title: "bar", Tags: []string{"bravo", "charlie"}},
+			"baz": sheet.Sheet{Title: "baz", Tags: []string{"delta"}},
+		},
+	}
+
+	// consolidate the cheatsheets
+	tags := Tags(cheatpaths)
+
+	// specify the expected output
+	want := []string{
+		"alpha",
+		"bravo",
+		"charlie",
+		"delta",
+	}
+
+	// assert that the cheatsheets properly consolidated
+	if !reflect.DeepEqual(tags, want) {
+		t.Errorf(
+			"failed to return tags: want:\n%s, got:\n%s",
+			spew.Sdump(want),
+			spew.Sdump(tags),
+		)
+	}
+
+}

scripts/cheat-autocompletion.bash

@@ -0,0 +1,9 @@
+function _cheat_autocomplete {
+    sheets=$(cheat -l | sed -n '2,$p'|cut -d' ' -f1)
+    COMPREPLY=()
+    if [ $COMP_CWORD = 1 ]; then
+	COMPREPLY=(`compgen -W "$sheets" -- $2`)
+    fi
+}
+
+complete -F _cheat_autocomplete cheat

scripts/cheat-autocompletion.fish

@@ -0,0 +1,13 @@
+complete -c cheat -f -a "(cheat -l | tail -n +2 | cut -d ' ' -f 1)"
+complete -c cheat -l init -d "Write a default config file to stdout"
+complete -c cheat -s c -l colorize -d "Colorize output"
+complete -c cheat -s d -l directories -d "List cheatsheet directories"
+complete -c cheat -s e -l edit -x -a "(cheat -l | tail -n +2 | cut -d ' ' -f 1)" -d "Edit cheatsheet"
+complete -c cheat -s l -l list -d "List cheatsheets"
+complete -c cheat -s p -l path -x -a "(cheat -d | cut -d ':' -f 1)" -d "Return only sheets found on given path"
+complete -c cheat -s r -l regex -d "Treat search phrase as a regex"
+complete -c cheat -s s -l search -x -d "Search cheatsheets for given phrase"
+complete -c cheat -s t -l tag -x -a "(cheat -T)" -d "Return only sheets matching the given tag"
+complete -c cheat -s T -l tags -d "List all tags in use"
+complete -c cheat -s v -l version -d "Print the version number"
+complete -c cheat -l rm -x -a "(cheat -l | tail -n +2 | cut -d ' ' -f 1)" -d "Remove (delete) cheatsheet"

vendor/github.com/alecthomas/chroma/.gitignore

@@ -0,0 +1,19 @@
+# Binaries for programs and plugins
+*.exe
+*.dll
+*.so
+*.dylib
+/cmd/chroma/chroma
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
+.glide/
+
+_models/
+
+_examples/

vendor/github.com/alecthomas/chroma/.golangci.yml

@@ -0,0 +1,55 @@
+run:
+  tests: true
+  skip-dirs:
+    - _examples
+
+output:
+  print-issued-lines: false
+
+linters:
+  enable-all: true
+  disable:
+    - maligned
+    - megacheck
+    - lll
+    - gocyclo
+    - dupl
+    - gochecknoglobals
+    - funlen
+    - godox
+    - wsl
+    - gomnd
+    - gocognit
+
+linters-settings:
+  govet:
+    check-shadowing: true
+  gocyclo:
+    min-complexity: 10
+  dupl:
+    threshold: 100
+  goconst:
+    min-len: 8
+    min-occurrences: 3
+
+issues:
+  max-per-linter: 0
+  max-same: 0
+  exclude-use-default: false
+  exclude:
+    # Captured by errcheck.
+    - '^(G104|G204):'
+    # Very commonly not checked.
+    - 'Error return value of .(.*\.Help|.*\.MarkFlagRequired|(os\.)?std(out|err)\..*|.*Close|.*Flush|os\.Remove(All)?|.*printf?|os\.(Un)?Setenv). is not checked'
+    - 'exported method (.*\.MarshalJSON|.*\.UnmarshalJSON|.*\.EntityURN|.*\.GoString|.*\.Pos) should have comment or be unexported'
+    - 'composite literal uses unkeyed fields'
+    - 'declaration of "err" shadows declaration'
+    - 'should not use dot imports'
+    - 'Potential file inclusion via variable'
+    - 'should have comment or be unexported'
+    - 'comment on exported var .* should be of the form'
+    - 'at least one file in a package should have a package comment'
+    - 'string literal contains the Unicode'
+    - 'methods on the same type should have the same receiver name'
+    - '_TokenType_name should be _TokenTypeName'
+    - '`_TokenType_map` should be `_TokenTypeMap`'

vendor/github.com/alecthomas/chroma/.goreleaser.yml

@@ -0,0 +1,31 @@
+project_name: chroma
+release:
+  github:
+    owner: alecthomas
+    name: chroma
+brew:
+  install: bin.install "chroma"
+builds:
+- goos:
+  - linux
+  - darwin
+  - windows
+  goarch:
+  - amd64
+  - "386"
+  goarm:
+  - "6"
+  main: ./cmd/chroma/main.go
+  ldflags: -s -w -X main.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.Date}}
+  binary: chroma
+archive:
+  format: tar.gz
+  name_template: '{{ .Binary }}-{{ .Version }}-{{ .Os }}-{{ .Arch }}{{ if .Arm }}v{{
+    .Arm }}{{ end }}'
+  files:
+  - COPYING
+  - README*
+snapshot:
+  name_template: SNAPSHOT-{{ .Commit }}
+checksum:
+  name_template: '{{ .ProjectName }}-{{ .Version }}-checksums.txt'

vendor/github.com/alecthomas/chroma/.travis.yml

@@ -0,0 +1,12 @@
+sudo: false
+language: go
+go:
+  - "1.13.x"
+script:
+  - go test -v ./...
+  - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s v1.22.2
+  - ./bin/golangci-lint run
+  - git clean -fdx .
+after_success:
+  curl -sL https://git.io/goreleaser | bash && goreleaser
+

vendor/github.com/alecthomas/chroma/COPYING

@@ -0,0 +1,19 @@
+Copyright (C) 2017 Alec Thomas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

vendor/github.com/alecthomas/chroma/Makefile

@@ -0,0 +1,19 @@
+.PHONY: chromad upload all
+
+all: README.md tokentype_string.go
+
+README.md: lexers/*/*.go
+	./table.py
+
+tokentype_string.go: types.go
+	go generate
+
+chromad:
+	(cd ./cmd/chromad && go get github.com/GeertJohan/go.rice/rice@master && go install github.com/GeertJohan/go.rice/rice)
+	rm -f chromad
+	(export CGOENABLED=0 GOOS=linux ; cd ./cmd/chromad && go build -o ../../chromad .)
+	rice append -i ./cmd/chromad --exec=./chromad
+
+upload: chromad
+	scp chromad root@swapoff.org: && \
+		ssh root@swapoff.org 'install -m755 ./chromad /srv/http/swapoff.org/bin && service chromad restart'

vendor/github.com/alecthomas/chroma/README.md

@@ -0,0 +1,267 @@
+# Chroma — A general purpose syntax highlighter in pure Go [![Golang Documentation](https://godoc.org/github.com/alecthomas/chroma?status.svg)](https://godoc.org/github.com/alecthomas/chroma) [![Build Status](https://travis-ci.org/alecthomas/chroma.svg)](https://travis-ci.org/alecthomas/chroma) [![Gitter chat](https://badges.gitter.im/alecthomas.svg)](https://gitter.im/alecthomas/Lobby)
+
+> **NOTE:** As Chroma has just been released, its API is still in flux. That said, the high-level interface should not change significantly.
+
+Chroma takes source code and other structured text and converts it into syntax
+highlighted HTML, ANSI-coloured text, etc.
+
+Chroma is based heavily on [Pygments](http://pygments.org/), and includes
+translators for Pygments lexers and styles.
+
+<a id="markdown-table-of-contents" name="table-of-contents"></a>
+## Table of Contents
+
+<!-- TOC -->
+
+1. [Table of Contents](#table-of-contents)
+2. [Supported languages](#supported-languages)
+3. [Try it](#try-it)
+4. [Using the library](#using-the-library)
+    1. [Quick start](#quick-start)
+    2. [Identifying the language](#identifying-the-language)
+    3. [Formatting the output](#formatting-the-output)
+    4. [The HTML formatter](#the-html-formatter)
+5. [More detail](#more-detail)
+    1. [Lexers](#lexers)
+    2. [Formatters](#formatters)
+    3. [Styles](#styles)
+6. [Command-line interface](#command-line-interface)
+7. [What's missing compared to Pygments?](#whats-missing-compared-to-pygments)
+
+<!-- /TOC -->
+
+<a id="markdown-supported-languages" name="supported-languages"></a>
+## Supported languages
+
+Prefix | Language
+:----: | --------
+A | ABAP, ABNF, ActionScript, ActionScript 3, Ada, Angular2, ANTLR, ApacheConf, APL, AppleScript, Arduino, Awk
+B | Ballerina, Base Makefile, Bash, Batchfile, BlitzBasic, BNF, Brainfuck
+C | C, C#, C++, Cap'n Proto, Cassandra CQL, Ceylon, CFEngine3, cfstatement, ChaiScript, Cheetah, Clojure, CMake, COBOL, CoffeeScript, Common Lisp, Coq, Crystal, CSS, Cython
+D | D, Dart, Diff, Django/Jinja, Docker, DTD
+E | EBNF, Elixir, Elm, EmacsLisp, Erlang
+F | Factor, Fish, Forth, Fortran, FSharp
+G | GAS, GDScript, Genshi, Genshi HTML, Genshi Text, GLSL, Gnuplot, Go, Go HTML Template, Go Text Template, GraphQL, Groovy
+H | Handlebars, Haskell, Haxe, HCL, Hexdump, HTML, HTTP, Hy
+I | Idris, INI, Io
+J | J, Java, JavaScript, JSON, Julia, Jungle
+K | Kotlin
+L | Lighttpd configuration file, LLVM, Lua
+M | Mako, markdown, Mason, Mathematica, Matlab, MiniZinc, MLIR, Modula-2, MonkeyC, MorrowindScript, Myghty, MySQL
+N | NASM, Newspeak, Nginx configuration file, Nim, Nix
+O | Objective-C, OCaml, Octave, OpenSCAD, Org Mode
+P | PacmanConf, Perl, PHP, Pig, PkgConfig, PL/pgSQL, plaintext, PostgreSQL SQL dialect, PostScript, POVRay, PowerShell, Prolog, Protocol Buffer, Puppet, Python, Python 3
+Q | QBasic
+R | R, Racket, Ragel, react, reg, reStructuredText, Rexx, Ruby, Rust
+S | Sass, Scala, Scheme, Scilab, SCSS, Smalltalk, Smarty, SML, Snobol, Solidity, SPARQL, SQL, SquidConf, Swift, SYSTEMD, systemverilog
+T | TableGen, TASM, Tcl, Tcsh, Termcap, Terminfo, Terraform, TeX, Thrift, TOML, TradingView, Transact-SQL, Turing, Turtle, Twig, TypeScript, TypoScript, TypoScriptCssData, TypoScriptHtmlData
+V | VB.net, verilog, VHDL, VimL, vue
+W | WDTE
+X | XML, Xorg
+Y | YAML
+
+
+_I will attempt to keep this section up to date, but an authoritative list can be
+displayed with `chroma --list`._
+
+<a id="markdown-try-it" name="try-it"></a>
+## Try it
+
+Try out various languages and styles on the [Chroma Playground](https://swapoff.org/chroma/playground/).
+
+<a id="markdown-using-the-library" name="using-the-library"></a>
+## Using the library
+
+Chroma, like Pygments, has the concepts of
+[lexers](https://github.com/alecthomas/chroma/tree/master/lexers),
+[formatters](https://github.com/alecthomas/chroma/tree/master/formatters) and
+[styles](https://github.com/alecthomas/chroma/tree/master/styles).
+
+Lexers convert source text into a stream of tokens, styles specify how token
+types are mapped to colours, and formatters convert tokens and styles into
+formatted output.
+
+A package exists for each of these, containing a global `Registry` variable
+with all of the registered implementations. There are also helper functions
+for using the registry in each package, such as looking up lexers by name or
+matching filenames, etc.
+
+In all cases, if a lexer, formatter or style can not be determined, `nil` will
+be returned. In this situation you may want to default to the `Fallback`
+value in each respective package, which provides sane defaults.
+
+<a id="markdown-quick-start" name="quick-start"></a>
+### Quick start
+
+A convenience function exists that can be used to simply format some source
+text, without any effort:
+
+```go
+err := quick.Highlight(os.Stdout, someSourceCode, "go", "html", "monokai")
+```
+
+<a id="markdown-identifying-the-language" name="identifying-the-language"></a>
+### Identifying the language
+
+To highlight code, you'll first have to identify what language the code is
+written in. There are three primary ways to do that:
+
+1. Detect the language from its filename.
+
+    ```go
+    lexer := lexers.Match("foo.go")
+    ```
+
+3. Explicitly specify the language by its Chroma syntax ID (a full list is available from `lexers.Names()`).
+
+    ```go
+    lexer := lexers.Get("go")
+    ```
+
+3. Detect the language from its content.
+
+    ```go
+    lexer := lexers.Analyse("package main\n\nfunc main()\n{\n}\n")
+    ```
+
+In all cases, `nil` will be returned if the language can not be identified.
+
+```go
+if lexer == nil {
+  lexer = lexers.Fallback
+}
+```
+
+At this point, it should be noted that some lexers can be extremely chatty. To
+mitigate this, you can use the coalescing lexer to coalesce runs of identical
+token types into a single token:
+
+```go
+lexer = chroma.Coalesce(lexer)
+```
+
+<a id="markdown-formatting-the-output" name="formatting-the-output"></a>
+### Formatting the output
+
+Once a language is identified you will need to pick a formatter and a style (theme).
+
+```go
+style := styles.Get("swapoff")
+if style == nil {
+  style = styles.Fallback
+}
+formatter := formatters.Get("html")
+if formatter == nil {
+  formatter = formatters.Fallback
+}
+```
+
+Then obtain an iterator over the tokens:
+
+```go
+contents, err := ioutil.ReadAll(r)
+iterator, err := lexer.Tokenise(nil, string(contents))
+```
+
+And finally, format the tokens from the iterator:
+
+```go
+err := formatter.Format(w, style, iterator)
+```
+
+<a id="markdown-the-html-formatter" name="the-html-formatter"></a>
+### The HTML formatter
+
+By default the `html` registered formatter generates standalone HTML with
+embedded CSS. More flexibility is available through the `formatters/html` package.
+
+Firstly, the output generated by the formatter can be customised with the
+following constructor options:
+
+- `Standalone()` - generate standalone HTML with embedded CSS.
+- `WithClasses()` - use classes rather than inlined style attributes.
+- `ClassPrefix(prefix)` - prefix each generated CSS class.
+- `TabWidth(width)` - Set the rendered tab width, in characters.
+- `WithLineNumbers()` - Render line numbers (style with `LineNumbers`).
+- `LinkableLineNumbers()` - Make the line numbers linkable.
+- `HighlightLines(ranges)` - Highlight lines in these ranges (style with `LineHighlight`).
+- `LineNumbersInTable()` - Use a table for formatting line numbers and code, rather than spans.
+
+If `WithClasses()` is used, the corresponding CSS can be obtained from the formatter with:
+
+```go
+formatter := html.New(html.WithClasses())
+err := formatter.WriteCSS(w, style)
+```
+
+<a id="markdown-more-detail" name="more-detail"></a>
+## More detail
+
+<a id="markdown-lexers" name="lexers"></a>
+### Lexers
+
+See the [Pygments documentation](http://pygments.org/docs/lexerdevelopment/)
+for details on implementing lexers. Most concepts apply directly to Chroma,
+but see existing lexer implementations for real examples.
+
+In many cases lexers can be automatically converted directly from Pygments by
+using the included Python 3 script `pygments2chroma.py`. I use something like
+the following:
+
+```sh
+python3 ~/Projects/chroma/_tools/pygments2chroma.py \
+  pygments.lexers.jvm.KotlinLexer \
+  > ~/Projects/chroma/lexers/kotlin.go \
+  && gofmt -s -w ~/Projects/chroma/lexers/*.go
+```
+
+See notes in [pygments-lexers.go](https://github.com/alecthomas/chroma/blob/master/pygments-lexers.txt)
+for a list of lexers, and notes on some of the issues importing them.
+
+<a id="markdown-formatters" name="formatters"></a>
+### Formatters
+
+Chroma supports HTML output, as well as terminal output in 8 colour, 256 colour, and true-colour.
+
+A `noop` formatter is included that outputs the token text only, and a `tokens`
+formatter outputs raw tokens. The latter is useful for debugging lexers.
+
+<a id="markdown-styles" name="styles"></a>
+### Styles
+
+Chroma styles use the [same syntax](http://pygments.org/docs/styles/) as Pygments.
+
+All Pygments styles have been converted to Chroma using the `_tools/style.py` script.
+
+When you work with one of [Chroma's styles](https://github.com/alecthomas/chroma/tree/master/styles), know that the `chroma.Background` token type provides the default style for tokens. It does so by defining a foreground color and background color.
+
+For example, this gives each token name not defined in the style a default color of `#f8f8f8` and uses `#000000` for the highlighted code block's background:
+
+~~~go
+chroma.Background: "#f8f8f2 bg:#000000",
+~~~
+
+Also, token types in a style file are hierarchical. For instance, when `CommentSpecial` is not defined, Chroma uses the token style from `Comment`. So when several comment tokens use the same color, you'll only need to define `Comment` and override the one that has a different color.
+
+For a quick overview of the available styles and how they look, check out the [Chroma Style Gallery](https://xyproto.github.io/splash/docs/).
+
+<a id="markdown-command-line-interface" name="command-line-interface"></a>
+## Command-line interface
+
+A command-line interface to Chroma is included. It can be installed with:
+
+```sh
+go get -u github.com/alecthomas/chroma/cmd/chroma
+```
+
+<a id="markdown-whats-missing-compared-to-pygments" name="whats-missing-compared-to-pygments"></a>
+## What's missing compared to Pygments?
+
+- Quite a few lexers, for various reasons (pull-requests welcome):
+    - Pygments lexers for complex languages often include custom code to
+      handle certain aspects, such as Perl6's ability to nest code inside
+      regular expressions. These require time and effort to convert.
+    - I mostly only converted languages I had heard of, to reduce the porting cost.
+- Some more esoteric features of Pygments are omitted for simplicity.
+- Though the Chroma API supports content detection, very few languages support them.
+  I have plans to implement a statistical analyser at some point, but not enough time.

vendor/github.com/alecthomas/chroma/coalesce.go

@@ -0,0 +1,35 @@
+package chroma
+
+// Coalesce is a Lexer interceptor that collapses runs of common types into a single token.
+func Coalesce(lexer Lexer) Lexer { return &coalescer{lexer} }
+
+type coalescer struct{ Lexer }
+
+func (d *coalescer) Tokenise(options *TokeniseOptions, text string) (Iterator, error) {
+	var prev Token
+	it, err := d.Lexer.Tokenise(options, text)
+	if err != nil {
+		return nil, err
+	}
+	return func() Token {
+		for token := it(); token != (EOF); token = it() {
+			if len(token.Value) == 0 {
+				continue
+			}
+			if prev == EOF {
+				prev = token
+			} else {
+				if prev.Type == token.Type && len(prev.Value) < 8192 {
+					prev.Value += token.Value
+				} else {
+					out := prev
+					prev = token
+					return out
+				}
+			}
+		}
+		out := prev
+		prev = EOF
+		return out
+	}, nil
+}

vendor/github.com/alecthomas/chroma/colour.go

@@ -0,0 +1,164 @@
+package chroma
+
+import (
+	"fmt"
+	"math"
+	"strconv"
+	"strings"
+)
+
+// ANSI2RGB maps ANSI colour names, as supported by Chroma, to hex RGB values.
+var ANSI2RGB = map[string]string{
+	"#ansiblack":     "000000",
+	"#ansidarkred":   "7f0000",
+	"#ansidarkgreen": "007f00",
+	"#ansibrown":     "7f7fe0",
+	"#ansidarkblue":  "00007f",
+	"#ansipurple":    "7f007f",
+	"#ansiteal":      "007f7f",
+	"#ansilightgray": "e5e5e5",
+	// Normal
+	"#ansidarkgray":  "555555",
+	"#ansired":       "ff0000",
+	"#ansigreen":     "00ff00",
+	"#ansiyellow":    "ffff00",
+	"#ansiblue":      "0000ff",
+	"#ansifuchsia":   "ff00ff",
+	"#ansiturquoise": "00ffff",
+	"#ansiwhite":     "ffffff",
+
+	// Aliases without the "ansi" prefix, because...why?
+	"#black":     "000000",
+	"#darkred":   "7f0000",
+	"#darkgreen": "007f00",
+	"#brown":     "7f7fe0",
+	"#darkblue":  "00007f",
+	"#purple":    "7f007f",
+	"#teal":      "007f7f",
+	"#lightgray": "e5e5e5",
+	// Normal
+	"#darkgray":  "555555",
+	"#red":       "ff0000",
+	"#green":     "00ff00",
+	"#yellow":    "ffff00",
+	"#blue":      "0000ff",
+	"#fuchsia":   "ff00ff",
+	"#turquoise": "00ffff",
+	"#white":     "ffffff",
+}
+
+// Colour represents an RGB colour.
+type Colour int32
+
+// NewColour creates a Colour directly from RGB values.
+func NewColour(r, g, b uint8) Colour {
+	return ParseColour(fmt.Sprintf("%02x%02x%02x", r, g, b))
+}
+
+// Distance between this colour and another.
+//
+// This uses the approach described here (https://www.compuphase.com/cmetric.htm).
+// This is not as accurate as LAB, et. al. but is *vastly* simpler and sufficient for our needs.
+func (c Colour) Distance(e2 Colour) float64 {
+	ar, ag, ab := int64(c.Red()), int64(c.Green()), int64(c.Blue())
+	br, bg, bb := int64(e2.Red()), int64(e2.Green()), int64(e2.Blue())
+	rmean := (ar + br) / 2
+	r := ar - br
+	g := ag - bg
+	b := ab - bb
+	return math.Sqrt(float64((((512 + rmean) * r * r) >> 8) + 4*g*g + (((767 - rmean) * b * b) >> 8)))
+}
+
+// Brighten returns a copy of this colour with its brightness adjusted.
+//
+// If factor is negative, the colour is darkened.
+//
+// Uses approach described here (http://www.pvladov.com/2012/09/make-color-lighter-or-darker.html).
+func (c Colour) Brighten(factor float64) Colour {
+	r := float64(c.Red())
+	g := float64(c.Green())
+	b := float64(c.Blue())
+
+	if factor < 0 {
+		factor++
+		r *= factor
+		g *= factor
+		b *= factor
+	} else {
+		r = (255-r)*factor + r
+		g = (255-g)*factor + g
+		b = (255-b)*factor + b
+	}
+	return NewColour(uint8(r), uint8(g), uint8(b))
+}
+
+// BrightenOrDarken brightens a colour if it is < 0.5 brighteness or darkens if > 0.5 brightness.
+func (c Colour) BrightenOrDarken(factor float64) Colour {
+	if c.Brightness() < 0.5 {
+		return c.Brighten(factor)
+	}
+	return c.Brighten(-factor)
+}
+
+// Brightness of the colour (roughly) in the range 0.0 to 1.0
+func (c Colour) Brightness() float64 {
+	return (float64(c.Red()) + float64(c.Green()) + float64(c.Blue())) / 255.0 / 3.0
+}
+
+// ParseColour in the forms #rgb, #rrggbb, #ansi<colour>, or #<colour>.
+// Will return an "unset" colour if invalid.
+func ParseColour(colour string) Colour {
+	colour = normaliseColour(colour)
+	n, err := strconv.ParseUint(colour, 16, 32)
+	if err != nil {
+		return 0
+	}
+	return Colour(n + 1)
+}
+
+// MustParseColour is like ParseColour except it panics if the colour is invalid.
+//
+// Will panic if colour is in an invalid format.
+func MustParseColour(colour string) Colour {
+	parsed := ParseColour(colour)
+	if !parsed.IsSet() {
+		panic(fmt.Errorf("invalid colour %q", colour))
+	}
+	return parsed
+}
+
+// IsSet returns true if the colour is set.
+func (c Colour) IsSet() bool { return c != 0 }
+
+func (c Colour) String() string   { return fmt.Sprintf("#%06x", int(c-1)) }
+func (c Colour) GoString() string { return fmt.Sprintf("Colour(0x%06x)", int(c-1)) }
+
+// Red component of colour.
+func (c Colour) Red() uint8 { return uint8(((c - 1) >> 16) & 0xff) }
+
+// Green component of colour.
+func (c Colour) Green() uint8 { return uint8(((c - 1) >> 8) & 0xff) }
+
+// Blue component of colour.
+func (c Colour) Blue() uint8 { return uint8((c - 1) & 0xff) }
+
+// Colours is an orderable set of colours.
+type Colours []Colour
+
+func (c Colours) Len() int           { return len(c) }
+func (c Colours) Swap(i, j int)      { c[i], c[j] = c[j], c[i] }
+func (c Colours) Less(i, j int) bool { return c[i] < c[j] }
+
+// Convert colours to #rrggbb.
+func normaliseColour(colour string) string {
+	if ansi, ok := ANSI2RGB[colour]; ok {
+		return ansi
+	}
+	if strings.HasPrefix(colour, "#") {
+		colour = colour[1:]
+		if len(colour) == 3 {
+			return colour[0:1] + colour[0:1] + colour[1:2] + colour[1:2] + colour[2:3] + colour[2:3]
+		}
+	}
+	return colour
+}

vendor/github.com/alecthomas/chroma/delegate.go

@@ -0,0 +1,137 @@
+package chroma
+
+import (
+	"bytes"
+)
+
+type delegatingLexer struct {
+	root     Lexer
+	language Lexer
+}
+
+// DelegatingLexer combines two lexers to handle the common case of a language embedded inside another, such as PHP
+// inside HTML or PHP inside plain text.
+//
+// It takes two lexer as arguments: a root lexer and a language lexer.  First everything is scanned using the language
+// lexer, which must return "Other" for unrecognised tokens. Then all "Other" tokens are lexed using the root lexer.
+// Finally, these two sets of tokens are merged.
+//
+// The lexers from the template lexer package use this base lexer.
+func DelegatingLexer(root Lexer, language Lexer) Lexer {
+	return &delegatingLexer{
+		root:     root,
+		language: language,
+	}
+}
+
+func (d *delegatingLexer) Config() *Config {
+	return d.language.Config()
+}
+
+// An insertion is the character range where language tokens should be inserted.
+type insertion struct {
+	start, end int
+	tokens     []Token
+}
+
+func (d *delegatingLexer) Tokenise(options *TokeniseOptions, text string) (Iterator, error) { // nolint: gocognit
+	tokens, err := Tokenise(Coalesce(d.language), options, text)
+	if err != nil {
+		return nil, err
+	}
+	// Compute insertions and gather "Other" tokens.
+	others := &bytes.Buffer{}
+	insertions := []*insertion{}
+	var insert *insertion
+	offset := 0
+	var last Token
+	for _, t := range tokens {
+		if t.Type == Other {
+			if last != EOF && insert != nil && last.Type != Other {
+				insert.end = offset
+			}
+			others.WriteString(t.Value)
+		} else {
+			if last == EOF || last.Type == Other {
+				insert = &insertion{start: offset}
+				insertions = append(insertions, insert)
+			}
+			insert.tokens = append(insert.tokens, t)
+		}
+		last = t
+		offset += len(t.Value)
+	}
+
+	if len(insertions) == 0 {
+		return d.root.Tokenise(options, text)
+	}
+
+	// Lex the other tokens.
+	rootTokens, err := Tokenise(Coalesce(d.root), options, others.String())
+	if err != nil {
+		return nil, err
+	}
+
+	// Interleave the two sets of tokens.
+	var out []Token
+	offset = 0 // Offset into text.
+	tokenIndex := 0
+	nextToken := func() Token {
+		if tokenIndex >= len(rootTokens) {
+			return EOF
+		}
+		t := rootTokens[tokenIndex]
+		tokenIndex++
+		return t
+	}
+	insertionIndex := 0
+	nextInsertion := func() *insertion {
+		if insertionIndex >= len(insertions) {
+			return nil
+		}
+		i := insertions[insertionIndex]
+		insertionIndex++
+		return i
+	}
+	t := nextToken()
+	i := nextInsertion()
+	for t != EOF || i != nil {
+		// fmt.Printf("%d->%d:%q   %d->%d:%q\n", offset, offset+len(t.Value), t.Value, i.start, i.end, Stringify(i.tokens...))
+		if t == EOF || (i != nil && i.start < offset+len(t.Value)) {
+			var l Token
+			l, t = splitToken(t, i.start-offset)
+			if l != EOF {
+				out = append(out, l)
+				offset += len(l.Value)
+			}
+			out = append(out, i.tokens...)
+			offset += i.end - i.start
+			if t == EOF {
+				t = nextToken()
+			}
+			i = nextInsertion()
+		} else {
+			out = append(out, t)
+			offset += len(t.Value)
+			t = nextToken()
+		}
+	}
+	return Literator(out...), nil
+}
+
+func splitToken(t Token, offset int) (l Token, r Token) {
+	if t == EOF {
+		return EOF, EOF
+	}
+	if offset == 0 {
+		return EOF, t
+	}
+	if offset == len(t.Value) {
+		return t, EOF
+	}
+	l = t.Clone()
+	r = t.Clone()
+	l.Value = l.Value[:offset]
+	r.Value = r.Value[offset:]
+	return
+}

vendor/github.com/alecthomas/chroma/doc.go

@@ -0,0 +1,7 @@
+// Package chroma takes source code and other structured text and converts it into syntax highlighted HTML, ANSI-
+// coloured text, etc.
+//
+// Chroma is based heavily on Pygments, and includes translators for Pygments lexers and styles.
+//
+// For more information, go here: https://github.com/alecthomas/chroma
+package chroma

vendor/github.com/alecthomas/chroma/formatter.go

@@ -0,0 +1,43 @@
+package chroma
+
+import (
+	"io"
+)
+
+// A Formatter for Chroma lexers.
+type Formatter interface {
+	// Format returns a formatting function for tokens.
+	//
+	// If the iterator panics, the Formatter should recover.
+	Format(w io.Writer, style *Style, iterator Iterator) error
+}
+
+// A FormatterFunc is a Formatter implemented as a function.
+//
+// Guards against iterator panics.
+type FormatterFunc func(w io.Writer, style *Style, iterator Iterator) error
+
+func (f FormatterFunc) Format(w io.Writer, s *Style, it Iterator) (err error) { // nolint
+	defer func() {
+		if perr := recover(); perr != nil {
+			err = perr.(error)
+		}
+	}()
+	return f(w, s, it)
+}
+
+type recoveringFormatter struct {
+	Formatter
+}
+
+func (r recoveringFormatter) Format(w io.Writer, s *Style, it Iterator) (err error) {
+	defer func() {
+		if perr := recover(); perr != nil {
+			err = perr.(error)
+		}
+	}()
+	return r.Formatter.Format(w, s, it)
+}
+
+// RecoveringFormatter wraps a formatter with panic recovery.
+func RecoveringFormatter(formatter Formatter) Formatter { return recoveringFormatter{formatter} }

vendor/github.com/alecthomas/chroma/formatters/api.go

@@ -0,0 +1,57 @@
+package formatters
+
+import (
+	"io"
+	"sort"
+
+	"github.com/alecthomas/chroma"
+	"github.com/alecthomas/chroma/formatters/html"
+	"github.com/alecthomas/chroma/formatters/svg"
+)
+
+var (
+	// NoOp formatter.
+	NoOp = Register("noop", chroma.FormatterFunc(func(w io.Writer, s *chroma.Style, iterator chroma.Iterator) error {
+		for t := iterator(); t != chroma.EOF; t = iterator() {
+			if _, err := io.WriteString(w, t.Value); err != nil {
+				return err
+			}
+		}
+		return nil
+	}))
+	// Default HTML formatter outputs self-contained HTML.
+	htmlFull = Register("html", html.New(html.Standalone(true), html.WithClasses(true))) // nolint
+	SVG      = Register("svg", svg.New(svg.EmbedFont("Liberation Mono", svg.FontLiberationMono, svg.WOFF)))
+)
+
+// Fallback formatter.
+var Fallback = NoOp
+
+// Registry of Formatters.
+var Registry = map[string]chroma.Formatter{}
+
+// Names of registered formatters.
+func Names() []string {
+	out := []string{}
+	for name := range Registry {
+		out = append(out, name)
+	}
+	sort.Strings(out)
+	return out
+}
+
+// Get formatter by name.
+//
+// If the given formatter is not found, the Fallback formatter will be returned.
+func Get(name string) chroma.Formatter {
+	if f, ok := Registry[name]; ok {
+		return f
+	}
+	return Fallback
+}
+
+// Register a named formatter.
+func Register(name string, formatter chroma.Formatter) chroma.Formatter {
+	Registry[name] = formatter
+	return formatter
+}

vendor/github.com/alecthomas/chroma/formatters/html/html.go

@@ -0,0 +1,435 @@
+package html
+
+import (
+	"fmt"
+	"html"
+	"io"
+	"sort"
+	"strings"
+
+	"github.com/alecthomas/chroma"
+)
+
+// Option sets an option of the HTML formatter.
+type Option func(f *Formatter)
+
+// Standalone configures the HTML formatter for generating a standalone HTML document.
+func Standalone(b bool) Option { return func(f *Formatter) { f.standalone = b } }
+
+// ClassPrefix sets the CSS class prefix.
+func ClassPrefix(prefix string) Option { return func(f *Formatter) { f.prefix = prefix } }
+
+// WithClasses emits HTML using CSS classes, rather than inline styles.
+func WithClasses(b bool) Option { return func(f *Formatter) { f.Classes = b } }
+
+// TabWidth sets the number of characters for a tab. Defaults to 8.
+func TabWidth(width int) Option { return func(f *Formatter) { f.tabWidth = width } }
+
+// PreventSurroundingPre prevents the surrounding pre tags around the generated code.
+func PreventSurroundingPre(b bool) Option {
+	return func(f *Formatter) {
+		if b {
+			f.preWrapper = nopPreWrapper
+		} else {
+			f.preWrapper = defaultPreWrapper
+		}
+	}
+}
+
+// WithPreWrapper allows control of the surrounding pre tags.
+func WithPreWrapper(wrapper PreWrapper) Option {
+	return func(f *Formatter) {
+		f.preWrapper = wrapper
+	}
+}
+
+// WithLineNumbers formats output with line numbers.
+func WithLineNumbers(b bool) Option {
+	return func(f *Formatter) {
+		f.lineNumbers = b
+	}
+}
+
+// LineNumbersInTable will, when combined with WithLineNumbers, separate the line numbers
+// and code in table td's, which make them copy-and-paste friendly.
+func LineNumbersInTable(b bool) Option {
+	return func(f *Formatter) {
+		f.lineNumbersInTable = b
+	}
+}
+
+// LinkableLineNumbers decorates the line numbers HTML elements with an "id"
+// attribute so they can be linked.
+func LinkableLineNumbers(b bool, prefix string) Option {
+	return func(f *Formatter) {
+		f.linkableLineNumbers = b
+		f.lineNumbersIDPrefix = prefix
+	}
+}
+
+// HighlightLines higlights the given line ranges with the Highlight style.
+//
+// A range is the beginning and ending of a range as 1-based line numbers, inclusive.
+func HighlightLines(ranges [][2]int) Option {
+	return func(f *Formatter) {
+		f.highlightRanges = ranges
+		sort.Sort(f.highlightRanges)
+	}
+}
+
+// BaseLineNumber sets the initial number to start line numbering at. Defaults to 1.
+func BaseLineNumber(n int) Option {
+	return func(f *Formatter) {
+		f.baseLineNumber = n
+	}
+}
+
+// New HTML formatter.
+func New(options ...Option) *Formatter {
+	f := &Formatter{
+		baseLineNumber: 1,
+		preWrapper:     defaultPreWrapper,
+	}
+	for _, option := range options {
+		option(f)
+	}
+	return f
+}
+
+// PreWrapper defines the operations supported in WithPreWrapper.
+type PreWrapper interface {
+	// Start is called to write a start <pre> element.
+	// The code flag tells whether this block surrounds
+	// highlighted code. This will be false when surrounding
+	// line numbers.
+	Start(code bool, styleAttr string) string
+
+	// End is called to write the end </pre> element.
+	End(code bool) string
+}
+
+type preWrapper struct {
+	start func(code bool, styleAttr string) string
+	end   func(code bool) string
+}
+
+func (p preWrapper) Start(code bool, styleAttr string) string {
+	return p.start(code, styleAttr)
+}
+
+func (p preWrapper) End(code bool) string {
+	return p.end(code)
+}
+
+var (
+	nopPreWrapper = preWrapper{
+		start: func(code bool, styleAttr string) string { return "" },
+		end:   func(code bool) string { return "" },
+	}
+	defaultPreWrapper = preWrapper{
+		start: func(code bool, styleAttr string) string {
+			return fmt.Sprintf("<pre%s>", styleAttr)
+		},
+		end: func(code bool) string {
+			return "</pre>"
+		},
+	}
+)
+
+// Formatter that generates HTML.
+type Formatter struct {
+	standalone          bool
+	prefix              string
+	Classes             bool // Exported field to detect when classes are being used
+	preWrapper          PreWrapper
+	tabWidth            int
+	lineNumbers         bool
+	lineNumbersInTable  bool
+	linkableLineNumbers bool
+	lineNumbersIDPrefix string
+	highlightRanges     highlightRanges
+	baseLineNumber      int
+}
+
+type highlightRanges [][2]int
+
+func (h highlightRanges) Len() int           { return len(h) }
+func (h highlightRanges) Swap(i, j int)      { h[i], h[j] = h[j], h[i] }
+func (h highlightRanges) Less(i, j int) bool { return h[i][0] < h[j][0] }
+
+func (f *Formatter) Format(w io.Writer, style *chroma.Style, iterator chroma.Iterator) (err error) {
+	return f.writeHTML(w, style, iterator.Tokens())
+}
+
+// We deliberately don't use html/template here because it is two orders of magnitude slower (benchmarked).
+//
+// OTOH we need to be super careful about correct escaping...
+func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []chroma.Token) (err error) { // nolint: gocyclo
+	css := f.styleToCSS(style)
+	if !f.Classes {
+		for t, style := range css {
+			css[t] = compressStyle(style)
+		}
+	}
+	if f.standalone {
+		fmt.Fprint(w, "<html>\n")
+		if f.Classes {
+			fmt.Fprint(w, "<style type=\"text/css\">\n")
+			err = f.WriteCSS(w, style)
+			if err != nil {
+				return err
+			}
+			fmt.Fprintf(w, "body { %s; }\n", css[chroma.Background])
+			fmt.Fprint(w, "</style>")
+		}
+		fmt.Fprintf(w, "<body%s>\n", f.styleAttr(css, chroma.Background))
+	}
+
+	wrapInTable := f.lineNumbers && f.lineNumbersInTable
+
+	lines := chroma.SplitTokensIntoLines(tokens)
+	lineDigits := len(fmt.Sprintf("%d", len(lines)))
+	highlightIndex := 0
+
+	if wrapInTable {
+		// List line numbers in its own <td>
+		fmt.Fprintf(w, "<div%s>\n", f.styleAttr(css, chroma.Background))
+		fmt.Fprintf(w, "<table%s><tr>", f.styleAttr(css, chroma.LineTable))
+		fmt.Fprintf(w, "<td%s>\n", f.styleAttr(css, chroma.LineTableTD))
+		fmt.Fprintf(w, f.preWrapper.Start(false, f.styleAttr(css, chroma.Background)))
+		for index := range lines {
+			line := f.baseLineNumber + index
+			highlight, next := f.shouldHighlight(highlightIndex, line)
+			if next {
+				highlightIndex++
+			}
+			if highlight {
+				fmt.Fprintf(w, "<span%s>", f.styleAttr(css, chroma.LineHighlight))
+			}
+
+			fmt.Fprintf(w, "<span%s%s>%*d\n</span>", f.styleAttr(css, chroma.LineNumbersTable), f.lineIDAttribute(line), lineDigits, line)
+
+			if highlight {
+				fmt.Fprintf(w, "</span>")
+			}
+		}
+		fmt.Fprint(w, f.preWrapper.End(false))
+		fmt.Fprint(w, "</td>\n")
+		fmt.Fprintf(w, "<td%s>\n", f.styleAttr(css, chroma.LineTableTD, "width:100%"))
+	}
+
+	fmt.Fprintf(w, f.preWrapper.Start(true, f.styleAttr(css, chroma.Background)))
+
+	highlightIndex = 0
+	for index, tokens := range lines {
+		// 1-based line number.
+		line := f.baseLineNumber + index
+		highlight, next := f.shouldHighlight(highlightIndex, line)
+		if next {
+			highlightIndex++
+		}
+		if highlight {
+			fmt.Fprintf(w, "<span%s>", f.styleAttr(css, chroma.LineHighlight))
+		}
+
+		if f.lineNumbers && !wrapInTable {
+			fmt.Fprintf(w, "<span%s%s>%*d</span>", f.styleAttr(css, chroma.LineNumbers), f.lineIDAttribute(line), lineDigits, line)
+		}
+
+		for _, token := range tokens {
+			html := html.EscapeString(token.String())
+			attr := f.styleAttr(css, token.Type)
+			if attr != "" {
+				html = fmt.Sprintf("<span%s>%s</span>", attr, html)
+			}
+			fmt.Fprint(w, html)
+		}
+		if highlight {
+			fmt.Fprintf(w, "</span>")
+		}
+	}
+
+	fmt.Fprintf(w, f.preWrapper.End(true))
+
+	if wrapInTable {
+		fmt.Fprint(w, "</td></tr></table>\n")
+		fmt.Fprint(w, "</div>\n")
+	}
+
+	if f.standalone {
+		fmt.Fprint(w, "\n</body>\n")
+		fmt.Fprint(w, "</html>\n")
+	}
+
+	return nil
+}
+
+func (f *Formatter) lineIDAttribute(line int) string {
+	if !f.linkableLineNumbers {
+		return ""
+	}
+	return fmt.Sprintf(" id=\"%s%d\"", f.lineNumbersIDPrefix, line)
+}
+
+func (f *Formatter) shouldHighlight(highlightIndex, line int) (bool, bool) {
+	next := false
+	for highlightIndex < len(f.highlightRanges) && line > f.highlightRanges[highlightIndex][1] {
+		highlightIndex++
+		next = true
+	}
+	if highlightIndex < len(f.highlightRanges) {
+		hrange := f.highlightRanges[highlightIndex]
+		if line >= hrange[0] && line <= hrange[1] {
+			return true, next
+		}
+	}
+	return false, next
+}
+
+func (f *Formatter) class(t chroma.TokenType) string {
+	for t != 0 {
+		if cls, ok := chroma.StandardTypes[t]; ok {
+			if cls != "" {
+				return f.prefix + cls
+			}
+			return ""
+		}
+		t = t.Parent()
+	}
+	if cls := chroma.StandardTypes[t]; cls != "" {
+		return f.prefix + cls
+	}
+	return ""
+}
+
+func (f *Formatter) styleAttr(styles map[chroma.TokenType]string, tt chroma.TokenType, extraCSS ...string) string {
+	if f.Classes {
+		cls := f.class(tt)
+		if cls == "" {
+			return ""
+		}
+		return fmt.Sprintf(` class="%s"`, cls)
+	}
+	if _, ok := styles[tt]; !ok {
+		tt = tt.SubCategory()
+		if _, ok := styles[tt]; !ok {
+			tt = tt.Category()
+			if _, ok := styles[tt]; !ok {
+				return ""
+			}
+		}
+	}
+	css := []string{styles[tt]}
+	css = append(css, extraCSS...)
+	return fmt.Sprintf(` style="%s"`, strings.Join(css, ";"))
+}
+
+func (f *Formatter) tabWidthStyle() string {
+	if f.tabWidth != 0 && f.tabWidth != 8 {
+		return fmt.Sprintf("; -moz-tab-size: %[1]d; -o-tab-size: %[1]d; tab-size: %[1]d", f.tabWidth)
+	}
+	return ""
+}
+
+// WriteCSS writes CSS style definitions (without any surrounding HTML).
+func (f *Formatter) WriteCSS(w io.Writer, style *chroma.Style) error {
+	css := f.styleToCSS(style)
+	// Special-case background as it is mapped to the outer ".chroma" class.
+	if _, err := fmt.Fprintf(w, "/* %s */ .%schroma { %s }\n", chroma.Background, f.prefix, css[chroma.Background]); err != nil {
+		return err
+	}
+	// Special-case code column of table to expand width.
+	if f.lineNumbers && f.lineNumbersInTable {
+		if _, err := fmt.Fprintf(w, "/* %s */ .%schroma .%s:last-child { width: 100%%; }",
+			chroma.LineTableTD, f.prefix, f.class(chroma.LineTableTD)); err != nil {
+			return err
+		}
+	}
+	// Special-case line number highlighting when targeted.
+	if f.lineNumbers || f.lineNumbersInTable {
+		targetedLineCSS := StyleEntryToCSS(style.Get(chroma.LineHighlight))
+		for _, tt := range []chroma.TokenType{chroma.LineNumbers, chroma.LineNumbersTable} {
+			fmt.Fprintf(w, "/* %s targeted by URL anchor */ .%schroma .%s:target { %s }\n", tt, f.prefix, f.class(tt), targetedLineCSS)
+		}
+	}
+	tts := []int{}
+	for tt := range css {
+		tts = append(tts, int(tt))
+	}
+	sort.Ints(tts)
+	for _, ti := range tts {
+		tt := chroma.TokenType(ti)
+		if tt == chroma.Background {
+			continue
+		}
+		styles := css[tt]
+		if _, err := fmt.Fprintf(w, "/* %s */ .%schroma .%s { %s }\n", tt, f.prefix, f.class(tt), styles); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (f *Formatter) styleToCSS(style *chroma.Style) map[chroma.TokenType]string {
+	classes := map[chroma.TokenType]string{}
+	bg := style.Get(chroma.Background)
+	// Convert the style.
+	for t := range chroma.StandardTypes {
+		entry := style.Get(t)
+		if t != chroma.Background {
+			entry = entry.Sub(bg)
+		}
+		if entry.IsZero() {
+			continue
+		}
+		classes[t] = StyleEntryToCSS(entry)
+	}
+	classes[chroma.Background] += f.tabWidthStyle()
+	lineNumbersStyle := "margin-right: 0.4em; padding: 0 0.4em 0 0.4em;"
+	// All rules begin with default rules followed by user provided rules
+	classes[chroma.LineNumbers] = lineNumbersStyle + classes[chroma.LineNumbers]
+	classes[chroma.LineNumbersTable] = lineNumbersStyle + classes[chroma.LineNumbersTable]
+	classes[chroma.LineHighlight] = "display: block; width: 100%;" + classes[chroma.LineHighlight]
+	classes[chroma.LineTable] = "border-spacing: 0; padding: 0; margin: 0; border: 0; width: auto; overflow: auto; display: block;" + classes[chroma.LineTable]
+	classes[chroma.LineTableTD] = "vertical-align: top; padding: 0; margin: 0; border: 0;" + classes[chroma.LineTableTD]
+	return classes
+}
+
+// StyleEntryToCSS converts a chroma.StyleEntry to CSS attributes.
+func StyleEntryToCSS(e chroma.StyleEntry) string {
+	styles := []string{}
+	if e.Colour.IsSet() {
+		styles = append(styles, "color: "+e.Colour.String())
+	}
+	if e.Background.IsSet() {
+		styles = append(styles, "background-color: "+e.Background.String())
+	}
+	if e.Bold == chroma.Yes {
+		styles = append(styles, "font-weight: bold")
+	}
+	if e.Italic == chroma.Yes {
+		styles = append(styles, "font-style: italic")
+	}
+	if e.Underline == chroma.Yes {
+		styles = append(styles, "text-decoration: underline")
+	}
+	return strings.Join(styles, "; ")
+}
+
+// Compress CSS attributes - remove spaces, transform 6-digit colours to 3.
+func compressStyle(s string) string {
+	parts := strings.Split(s, ";")
+	out := []string{}
+	for _, p := range parts {
+		p = strings.Join(strings.Fields(p), " ")
+		p = strings.Replace(p, ": ", ":", 1)
+		if strings.Contains(p, "#") {
+			c := p[len(p)-6:]
+			if c[0] == c[1] && c[2] == c[3] && c[4] == c[5] {
+				p = p[:len(p)-6] + c[0:1] + c[2:3] + c[4:5]
+			}
+		}
+		out = append(out, p)
+	}
+	return strings.Join(out, ";")
+}

vendor/github.com/alecthomas/chroma/formatters/json.go

@@ -0,0 +1,31 @@
+package formatters
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+
+	"github.com/alecthomas/chroma"
+)
+
+// JSON formatter outputs the raw token structures as JSON.
+var JSON = Register("json", chroma.FormatterFunc(func(w io.Writer, s *chroma.Style, it chroma.Iterator) error {
+	fmt.Fprintln(w, "[")
+	i := 0
+	for t := it(); t != chroma.EOF; t = it() {
+		if i > 0 {
+			fmt.Fprintln(w, ",")
+		}
+		i++
+		bytes, err := json.Marshal(t)
+		if err != nil {
+			return err
+		}
+		if _, err := fmt.Fprint(w, "  "+string(bytes)); err != nil {
+			return err
+		}
+	}
+	fmt.Fprintln(w)
+	fmt.Fprintln(w, "]")
+	return nil
+}))

vendor/github.com/alecthomas/chroma/formatters/svg/svg.go

@@ -0,0 +1,222 @@
+// Package svg contains an SVG formatter.
+package svg
+
+import (
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"path"
+	"strings"
+
+	"github.com/alecthomas/chroma"
+)
+
+// Option sets an option of the SVG formatter.
+type Option func(f *Formatter)
+
+// FontFamily sets the font-family.
+func FontFamily(fontFamily string) Option { return func(f *Formatter) { f.fontFamily = fontFamily } }
+
+// EmbedFontFile embeds given font file
+func EmbedFontFile(fontFamily string, fileName string) (option Option, err error) {
+	var format FontFormat
+	switch path.Ext(fileName) {
+	case ".woff":
+		format = WOFF
+	case ".woff2":
+		format = WOFF2
+	case ".ttf":
+		format = TRUETYPE
+	default:
+		return nil, errors.New("unexpected font file suffix")
+	}
+
+	var content []byte
+	if content, err = ioutil.ReadFile(fileName); err == nil {
+		option = EmbedFont(fontFamily, base64.StdEncoding.EncodeToString(content), format)
+	}
+	return
+}
+
+// EmbedFont embeds given base64 encoded font
+func EmbedFont(fontFamily string, font string, format FontFormat) Option {
+	return func(f *Formatter) { f.fontFamily = fontFamily; f.embeddedFont = font; f.fontFormat = format }
+}
+
+// New SVG formatter.
+func New(options ...Option) *Formatter {
+	f := &Formatter{fontFamily: "Consolas, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace"}
+	for _, option := range options {
+		option(f)
+	}
+	return f
+}
+
+// Formatter that generates SVG.
+type Formatter struct {
+	fontFamily   string
+	embeddedFont string
+	fontFormat   FontFormat
+}
+
+func (f *Formatter) Format(w io.Writer, style *chroma.Style, iterator chroma.Iterator) (err error) {
+	f.writeSVG(w, style, iterator.Tokens())
+	return err
+}
+
+var svgEscaper = strings.NewReplacer(
+	`&`, "&",
+	`<`, "&lt;",
+	`>`, "&gt;",
+	`"`, "&quot;",
+	` `, "&#160;",
+	`	`, "&#160;&#160;&#160;&#160;",
+)
+
+// EscapeString escapes special characters.
+func escapeString(s string) string {
+	return svgEscaper.Replace(s)
+}
+
+func (f *Formatter) writeSVG(w io.Writer, style *chroma.Style, tokens []chroma.Token) { // nolint: gocyclo
+	svgStyles := f.styleToSVG(style)
+	lines := chroma.SplitTokensIntoLines(tokens)
+
+	fmt.Fprint(w, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n")
+	fmt.Fprint(w, "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.0//EN\" \"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\">\n")
+	fmt.Fprintf(w, "<svg width=\"%dpx\" height=\"%dpx\" xmlns=\"http://www.w3.org/2000/svg\">\n", 8*maxLineWidth(lines), 10+int(16.8*float64(len(lines)+1)))
+
+	if f.embeddedFont != "" {
+		f.writeFontStyle(w)
+	}
+
+	fmt.Fprintf(w, "<rect width=\"100%%\" height=\"100%%\" fill=\"%s\"/>\n", style.Get(chroma.Background).Background.String())
+	fmt.Fprintf(w, "<g font-family=\"%s\" font-size=\"14px\" fill=\"%s\">\n", f.fontFamily, style.Get(chroma.Text).Colour.String())
+
+	f.writeTokenBackgrounds(w, lines, style)
+
+	for index, tokens := range lines {
+		fmt.Fprintf(w, "<text x=\"0\" y=\"%fem\" xml:space=\"preserve\">", 1.2*float64(index+1))
+
+		for _, token := range tokens {
+			text := escapeString(token.String())
+			attr := f.styleAttr(svgStyles, token.Type)
+			if attr != "" {
+				text = fmt.Sprintf("<tspan %s>%s</tspan>", attr, text)
+			}
+			fmt.Fprint(w, text)
+		}
+		fmt.Fprint(w, "</text>")
+	}
+
+	fmt.Fprint(w, "\n</g>\n")
+	fmt.Fprint(w, "</svg>\n")
+}
+
+func maxLineWidth(lines [][]chroma.Token) int {
+	maxWidth := 0
+	for _, tokens := range lines {
+		length := 0
+		for _, token := range tokens {
+			length += len(strings.Replace(token.String(), `	`, "    ", -1))
+		}
+		if length > maxWidth {
+			maxWidth = length
+		}
+	}
+	return maxWidth
+}
+
+// There is no background attribute for text in SVG so simply calculate the position and text
+// of tokens with a background color that differs from the default and add a rectangle for each before
+// adding the token.
+func (f *Formatter) writeTokenBackgrounds(w io.Writer, lines [][]chroma.Token, style *chroma.Style) {
+	for index, tokens := range lines {
+		lineLength := 0
+		for _, token := range tokens {
+			length := len(strings.Replace(token.String(), `	`, "    ", -1))
+			tokenBackground := style.Get(token.Type).Background
+			if tokenBackground.IsSet() && tokenBackground != style.Get(chroma.Background).Background {
+				fmt.Fprintf(w, "<rect id=\"%s\" x=\"%dch\" y=\"%fem\" width=\"%dch\" height=\"1.2em\" fill=\"%s\" />\n", escapeString(token.String()), lineLength, 1.2*float64(index)+0.25, length, style.Get(token.Type).Background.String())
+			}
+			lineLength += length
+		}
+	}
+}
+
+type FontFormat int
+
+// https://transfonter.org/formats
+const (
+	WOFF FontFormat = iota
+	WOFF2
+	TRUETYPE
+)
+
+var fontFormats = [...]string{
+	"woff",
+	"woff2",
+	"truetype",
+}
+
+func (f *Formatter) writeFontStyle(w io.Writer) {
+	fmt.Fprintf(w, `<style>
+@font-face {
+	font-family: '%s';
+	src: url(data:application/x-font-%s;charset=utf-8;base64,%s) format('%s');'
+	font-weight: normal;
+	font-style: normal;
+}
+</style>`, f.fontFamily, fontFormats[f.fontFormat], f.embeddedFont, fontFormats[f.fontFormat])
+}
+
+func (f *Formatter) styleAttr(styles map[chroma.TokenType]string, tt chroma.TokenType) string {
+	if _, ok := styles[tt]; !ok {
+		tt = tt.SubCategory()
+		if _, ok := styles[tt]; !ok {
+			tt = tt.Category()
+			if _, ok := styles[tt]; !ok {
+				return ""
+			}
+		}
+	}
+	return styles[tt]
+}
+
+func (f *Formatter) styleToSVG(style *chroma.Style) map[chroma.TokenType]string {
+	converted := map[chroma.TokenType]string{}
+	bg := style.Get(chroma.Background)
+	// Convert the style.
+	for t := range chroma.StandardTypes {
+		entry := style.Get(t)
+		if t != chroma.Background {
+			entry = entry.Sub(bg)
+		}
+		if entry.IsZero() {
+			continue
+		}
+		converted[t] = StyleEntryToSVG(entry)
+	}
+	return converted
+}
+
+// StyleEntryToSVG converts a chroma.StyleEntry to SVG attributes.
+func StyleEntryToSVG(e chroma.StyleEntry) string {
+	var styles []string
+
+	if e.Colour.IsSet() {
+		styles = append(styles, "fill=\""+e.Colour.String()+"\"")
+	}
+	if e.Bold == chroma.Yes {
+		styles = append(styles, "font-weight=\"bold\"")
+	}
+	if e.Italic == chroma.Yes {
+		styles = append(styles, "font-style=\"italic\"")
+	}
+	if e.Underline == chroma.Yes {
+		styles = append(styles, "text-decoration=\"underline\"")
+	}
+	return strings.Join(styles, " ")
+}

vendor/github.com/alecthomas/chroma/formatters/tokens.go

@@ -0,0 +1,18 @@
+package formatters
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/alecthomas/chroma"
+)
+
+// Tokens formatter outputs the raw token structures.
+var Tokens = Register("tokens", chroma.FormatterFunc(func(w io.Writer, s *chroma.Style, it chroma.Iterator) error {
+	for t := it(); t != chroma.EOF; t = it() {
+		if _, err := fmt.Fprintln(w, t.GoString()); err != nil {
+			return err
+		}
+	}
+	return nil
+}))

vendor/github.com/alecthomas/chroma/formatters/tty_indexed.go

@@ -0,0 +1,260 @@
+package formatters
+
+import (
+	"fmt"
+	"io"
+	"math"
+
+	"github.com/alecthomas/chroma"
+)
+
+type ttyTable struct {
+	foreground map[chroma.Colour]string
+	background map[chroma.Colour]string
+}
+
+var c = chroma.MustParseColour
+
+var ttyTables = map[int]*ttyTable{
+	8: {
+		foreground: map[chroma.Colour]string{
+			c("#000000"): "\033[30m", c("#7f0000"): "\033[31m", c("#007f00"): "\033[32m", c("#7f7fe0"): "\033[33m",
+			c("#00007f"): "\033[34m", c("#7f007f"): "\033[35m", c("#007f7f"): "\033[36m", c("#e5e5e5"): "\033[37m",
+			c("#555555"): "\033[90m", c("#ff0000"): "\033[91m", c("#00ff00"): "\033[92m", c("#ffff00"): "\033[93m",
+			c("#0000ff"): "\033[94m", c("#ff00ff"): "\033[95m", c("#00ffff"): "\033[96m", c("#ffffff"): "\033[97m",
+		},
+		background: map[chroma.Colour]string{
+			c("#000000"): "\033[40m", c("#7f0000"): "\033[41m", c("#007f00"): "\033[42m", c("#7f7fe0"): "\033[43m",
+			c("#00007f"): "\033[44m", c("#7f007f"): "\033[45m", c("#007f7f"): "\033[46m", c("#e5e5e5"): "\033[47m",
+			c("#555555"): "\033[100m", c("#ff0000"): "\033[101m", c("#00ff00"): "\033[102m", c("#ffff00"): "\033[103m",
+			c("#0000ff"): "\033[104m", c("#ff00ff"): "\033[105m", c("#00ffff"): "\033[106m", c("#ffffff"): "\033[107m",
+		},
+	},
+	256: {
+		foreground: map[chroma.Colour]string{
+			c("#000000"): "\033[38;5;0m", c("#800000"): "\033[38;5;1m", c("#008000"): "\033[38;5;2m", c("#808000"): "\033[38;5;3m",
+			c("#000080"): "\033[38;5;4m", c("#800080"): "\033[38;5;5m", c("#008080"): "\033[38;5;6m", c("#c0c0c0"): "\033[38;5;7m",
+			c("#808080"): "\033[38;5;8m", c("#ff0000"): "\033[38;5;9m", c("#00ff00"): "\033[38;5;10m", c("#ffff00"): "\033[38;5;11m",
+			c("#0000ff"): "\033[38;5;12m", c("#ff00ff"): "\033[38;5;13m", c("#00ffff"): "\033[38;5;14m", c("#ffffff"): "\033[38;5;15m",
+			c("#000000"): "\033[38;5;16m", c("#00005f"): "\033[38;5;17m", c("#000087"): "\033[38;5;18m", c("#0000af"): "\033[38;5;19m",
+			c("#0000d7"): "\033[38;5;20m", c("#0000ff"): "\033[38;5;21m", c("#005f00"): "\033[38;5;22m", c("#005f5f"): "\033[38;5;23m",
+			c("#005f87"): "\033[38;5;24m", c("#005faf"): "\033[38;5;25m", c("#005fd7"): "\033[38;5;26m", c("#005fff"): "\033[38;5;27m",
+			c("#008700"): "\033[38;5;28m", c("#00875f"): "\033[38;5;29m", c("#008787"): "\033[38;5;30m", c("#0087af"): "\033[38;5;31m",
+			c("#0087d7"): "\033[38;5;32m", c("#0087ff"): "\033[38;5;33m", c("#00af00"): "\033[38;5;34m", c("#00af5f"): "\033[38;5;35m",
+			c("#00af87"): "\033[38;5;36m", c("#00afaf"): "\033[38;5;37m", c("#00afd7"): "\033[38;5;38m", c("#00afff"): "\033[38;5;39m",
+			c("#00d700"): "\033[38;5;40m", c("#00d75f"): "\033[38;5;41m", c("#00d787"): "\033[38;5;42m", c("#00d7af"): "\033[38;5;43m",
+			c("#00d7d7"): "\033[38;5;44m", c("#00d7ff"): "\033[38;5;45m", c("#00ff00"): "\033[38;5;46m", c("#00ff5f"): "\033[38;5;47m",
+			c("#00ff87"): "\033[38;5;48m", c("#00ffaf"): "\033[38;5;49m", c("#00ffd7"): "\033[38;5;50m", c("#00ffff"): "\033[38;5;51m",
+			c("#5f0000"): "\033[38;5;52m", c("#5f005f"): "\033[38;5;53m", c("#5f0087"): "\033[38;5;54m", c("#5f00af"): "\033[38;5;55m",
+			c("#5f00d7"): "\033[38;5;56m", c("#5f00ff"): "\033[38;5;57m", c("#5f5f00"): "\033[38;5;58m", c("#5f5f5f"): "\033[38;5;59m",
+			c("#5f5f87"): "\033[38;5;60m", c("#5f5faf"): "\033[38;5;61m", c("#5f5fd7"): "\033[38;5;62m", c("#5f5fff"): "\033[38;5;63m",
+			c("#5f8700"): "\033[38;5;64m", c("#5f875f"): "\033[38;5;65m", c("#5f8787"): "\033[38;5;66m", c("#5f87af"): "\033[38;5;67m",
+			c("#5f87d7"): "\033[38;5;68m", c("#5f87ff"): "\033[38;5;69m", c("#5faf00"): "\033[38;5;70m", c("#5faf5f"): "\033[38;5;71m",
+			c("#5faf87"): "\033[38;5;72m", c("#5fafaf"): "\033[38;5;73m", c("#5fafd7"): "\033[38;5;74m", c("#5fafff"): "\033[38;5;75m",
+			c("#5fd700"): "\033[38;5;76m", c("#5fd75f"): "\033[38;5;77m", c("#5fd787"): "\033[38;5;78m", c("#5fd7af"): "\033[38;5;79m",
+			c("#5fd7d7"): "\033[38;5;80m", c("#5fd7ff"): "\033[38;5;81m", c("#5fff00"): "\033[38;5;82m", c("#5fff5f"): "\033[38;5;83m",
+			c("#5fff87"): "\033[38;5;84m", c("#5fffaf"): "\033[38;5;85m", c("#5fffd7"): "\033[38;5;86m", c("#5fffff"): "\033[38;5;87m",
+			c("#870000"): "\033[38;5;88m", c("#87005f"): "\033[38;5;89m", c("#870087"): "\033[38;5;90m", c("#8700af"): "\033[38;5;91m",
+			c("#8700d7"): "\033[38;5;92m", c("#8700ff"): "\033[38;5;93m", c("#875f00"): "\033[38;5;94m", c("#875f5f"): "\033[38;5;95m",
+			c("#875f87"): "\033[38;5;96m", c("#875faf"): "\033[38;5;97m", c("#875fd7"): "\033[38;5;98m", c("#875fff"): "\033[38;5;99m",
+			c("#878700"): "\033[38;5;100m", c("#87875f"): "\033[38;5;101m", c("#878787"): "\033[38;5;102m", c("#8787af"): "\033[38;5;103m",
+			c("#8787d7"): "\033[38;5;104m", c("#8787ff"): "\033[38;5;105m", c("#87af00"): "\033[38;5;106m", c("#87af5f"): "\033[38;5;107m",
+			c("#87af87"): "\033[38;5;108m", c("#87afaf"): "\033[38;5;109m", c("#87afd7"): "\033[38;5;110m", c("#87afff"): "\033[38;5;111m",
+			c("#87d700"): "\033[38;5;112m", c("#87d75f"): "\033[38;5;113m", c("#87d787"): "\033[38;5;114m", c("#87d7af"): "\033[38;5;115m",
+			c("#87d7d7"): "\033[38;5;116m", c("#87d7ff"): "\033[38;5;117m", c("#87ff00"): "\033[38;5;118m", c("#87ff5f"): "\033[38;5;119m",
+			c("#87ff87"): "\033[38;5;120m", c("#87ffaf"): "\033[38;5;121m", c("#87ffd7"): "\033[38;5;122m", c("#87ffff"): "\033[38;5;123m",
+			c("#af0000"): "\033[38;5;124m", c("#af005f"): "\033[38;5;125m", c("#af0087"): "\033[38;5;126m", c("#af00af"): "\033[38;5;127m",
+			c("#af00d7"): "\033[38;5;128m", c("#af00ff"): "\033[38;5;129m", c("#af5f00"): "\033[38;5;130m", c("#af5f5f"): "\033[38;5;131m",
+			c("#af5f87"): "\033[38;5;132m", c("#af5faf"): "\033[38;5;133m", c("#af5fd7"): "\033[38;5;134m", c("#af5fff"): "\033[38;5;135m",
+			c("#af8700"): "\033[38;5;136m", c("#af875f"): "\033[38;5;137m", c("#af8787"): "\033[38;5;138m", c("#af87af"): "\033[38;5;139m",
+			c("#af87d7"): "\033[38;5;140m", c("#af87ff"): "\033[38;5;141m", c("#afaf00"): "\033[38;5;142m", c("#afaf5f"): "\033[38;5;143m",
+			c("#afaf87"): "\033[38;5;144m", c("#afafaf"): "\033[38;5;145m", c("#afafd7"): "\033[38;5;146m", c("#afafff"): "\033[38;5;147m",
+			c("#afd700"): "\033[38;5;148m", c("#afd75f"): "\033[38;5;149m", c("#afd787"): "\033[38;5;150m", c("#afd7af"): "\033[38;5;151m",
+			c("#afd7d7"): "\033[38;5;152m", c("#afd7ff"): "\033[38;5;153m", c("#afff00"): "\033[38;5;154m", c("#afff5f"): "\033[38;5;155m",
+			c("#afff87"): "\033[38;5;156m", c("#afffaf"): "\033[38;5;157m", c("#afffd7"): "\033[38;5;158m", c("#afffff"): "\033[38;5;159m",
+			c("#d70000"): "\033[38;5;160m", c("#d7005f"): "\033[38;5;161m", c("#d70087"): "\033[38;5;162m", c("#d700af"): "\033[38;5;163m",
+			c("#d700d7"): "\033[38;5;164m", c("#d700ff"): "\033[38;5;165m", c("#d75f00"): "\033[38;5;166m", c("#d75f5f"): "\033[38;5;167m",
+			c("#d75f87"): "\033[38;5;168m", c("#d75faf"): "\033[38;5;169m", c("#d75fd7"): "\033[38;5;170m", c("#d75fff"): "\033[38;5;171m",
+			c("#d78700"): "\033[38;5;172m", c("#d7875f"): "\033[38;5;173m", c("#d78787"): "\033[38;5;174m", c("#d787af"): "\033[38;5;175m",
+			c("#d787d7"): "\033[38;5;176m", c("#d787ff"): "\033[38;5;177m", c("#d7af00"): "\033[38;5;178m", c("#d7af5f"): "\033[38;5;179m",
+			c("#d7af87"): "\033[38;5;180m", c("#d7afaf"): "\033[38;5;181m", c("#d7afd7"): "\033[38;5;182m", c("#d7afff"): "\033[38;5;183m",
+			c("#d7d700"): "\033[38;5;184m", c("#d7d75f"): "\033[38;5;185m", c("#d7d787"): "\033[38;5;186m", c("#d7d7af"): "\033[38;5;187m",
+			c("#d7d7d7"): "\033[38;5;188m", c("#d7d7ff"): "\033[38;5;189m", c("#d7ff00"): "\033[38;5;190m", c("#d7ff5f"): "\033[38;5;191m",
+			c("#d7ff87"): "\033[38;5;192m", c("#d7ffaf"): "\033[38;5;193m", c("#d7ffd7"): "\033[38;5;194m", c("#d7ffff"): "\033[38;5;195m",
+			c("#ff0000"): "\033[38;5;196m", c("#ff005f"): "\033[38;5;197m", c("#ff0087"): "\033[38;5;198m", c("#ff00af"): "\033[38;5;199m",
+			c("#ff00d7"): "\033[38;5;200m", c("#ff00ff"): "\033[38;5;201m", c("#ff5f00"): "\033[38;5;202m", c("#ff5f5f"): "\033[38;5;203m",
+			c("#ff5f87"): "\033[38;5;204m", c("#ff5faf"): "\033[38;5;205m", c("#ff5fd7"): "\033[38;5;206m", c("#ff5fff"): "\033[38;5;207m",
+			c("#ff8700"): "\033[38;5;208m", c("#ff875f"): "\033[38;5;209m", c("#ff8787"): "\033[38;5;210m", c("#ff87af"): "\033[38;5;211m",
+			c("#ff87d7"): "\033[38;5;212m", c("#ff87ff"): "\033[38;5;213m", c("#ffaf00"): "\033[38;5;214m", c("#ffaf5f"): "\033[38;5;215m",
+			c("#ffaf87"): "\033[38;5;216m", c("#ffafaf"): "\033[38;5;217m", c("#ffafd7"): "\033[38;5;218m", c("#ffafff"): "\033[38;5;219m",
+			c("#ffd700"): "\033[38;5;220m", c("#ffd75f"): "\033[38;5;221m", c("#ffd787"): "\033[38;5;222m", c("#ffd7af"): "\033[38;5;223m",
+			c("#ffd7d7"): "\033[38;5;224m", c("#ffd7ff"): "\033[38;5;225m", c("#ffff00"): "\033[38;5;226m", c("#ffff5f"): "\033[38;5;227m",
+			c("#ffff87"): "\033[38;5;228m", c("#ffffaf"): "\033[38;5;229m", c("#ffffd7"): "\033[38;5;230m", c("#ffffff"): "\033[38;5;231m",
+			c("#080808"): "\033[38;5;232m", c("#121212"): "\033[38;5;233m", c("#1c1c1c"): "\033[38;5;234m", c("#262626"): "\033[38;5;235m",
+			c("#303030"): "\033[38;5;236m", c("#3a3a3a"): "\033[38;5;237m", c("#444444"): "\033[38;5;238m", c("#4e4e4e"): "\033[38;5;239m",
+			c("#585858"): "\033[38;5;240m", c("#626262"): "\033[38;5;241m", c("#6c6c6c"): "\033[38;5;242m", c("#767676"): "\033[38;5;243m",
+			c("#808080"): "\033[38;5;244m", c("#8a8a8a"): "\033[38;5;245m", c("#949494"): "\033[38;5;246m", c("#9e9e9e"): "\033[38;5;247m",
+			c("#a8a8a8"): "\033[38;5;248m", c("#b2b2b2"): "\033[38;5;249m", c("#bcbcbc"): "\033[38;5;250m", c("#c6c6c6"): "\033[38;5;251m",
+			c("#d0d0d0"): "\033[38;5;252m", c("#dadada"): "\033[38;5;253m", c("#e4e4e4"): "\033[38;5;254m", c("#eeeeee"): "\033[38;5;255m",
+		},
+		background: map[chroma.Colour]string{
+			c("#000000"): "\033[48;5;0m", c("#800000"): "\033[48;5;1m", c("#008000"): "\033[48;5;2m", c("#808000"): "\033[48;5;3m",
+			c("#000080"): "\033[48;5;4m", c("#800080"): "\033[48;5;5m", c("#008080"): "\033[48;5;6m", c("#c0c0c0"): "\033[48;5;7m",
+			c("#808080"): "\033[48;5;8m", c("#ff0000"): "\033[48;5;9m", c("#00ff00"): "\033[48;5;10m", c("#ffff00"): "\033[48;5;11m",
+			c("#0000ff"): "\033[48;5;12m", c("#ff00ff"): "\033[48;5;13m", c("#00ffff"): "\033[48;5;14m", c("#ffffff"): "\033[48;5;15m",
+			c("#000000"): "\033[48;5;16m", c("#00005f"): "\033[48;5;17m", c("#000087"): "\033[48;5;18m", c("#0000af"): "\033[48;5;19m",
+			c("#0000d7"): "\033[48;5;20m", c("#0000ff"): "\033[48;5;21m", c("#005f00"): "\033[48;5;22m", c("#005f5f"): "\033[48;5;23m",
+			c("#005f87"): "\033[48;5;24m", c("#005faf"): "\033[48;5;25m", c("#005fd7"): "\033[48;5;26m", c("#005fff"): "\033[48;5;27m",
+			c("#008700"): "\033[48;5;28m", c("#00875f"): "\033[48;5;29m", c("#008787"): "\033[48;5;30m", c("#0087af"): "\033[48;5;31m",
+			c("#0087d7"): "\033[48;5;32m", c("#0087ff"): "\033[48;5;33m", c("#00af00"): "\033[48;5;34m", c("#00af5f"): "\033[48;5;35m",
+			c("#00af87"): "\033[48;5;36m", c("#00afaf"): "\033[48;5;37m", c("#00afd7"): "\033[48;5;38m", c("#00afff"): "\033[48;5;39m",
+			c("#00d700"): "\033[48;5;40m", c("#00d75f"): "\033[48;5;41m", c("#00d787"): "\033[48;5;42m", c("#00d7af"): "\033[48;5;43m",
+			c("#00d7d7"): "\033[48;5;44m", c("#00d7ff"): "\033[48;5;45m", c("#00ff00"): "\033[48;5;46m", c("#00ff5f"): "\033[48;5;47m",
+			c("#00ff87"): "\033[48;5;48m", c("#00ffaf"): "\033[48;5;49m", c("#00ffd7"): "\033[48;5;50m", c("#00ffff"): "\033[48;5;51m",
+			c("#5f0000"): "\033[48;5;52m", c("#5f005f"): "\033[48;5;53m", c("#5f0087"): "\033[48;5;54m", c("#5f00af"): "\033[48;5;55m",
+			c("#5f00d7"): "\033[48;5;56m", c("#5f00ff"): "\033[48;5;57m", c("#5f5f00"): "\033[48;5;58m", c("#5f5f5f"): "\033[48;5;59m",
+			c("#5f5f87"): "\033[48;5;60m", c("#5f5faf"): "\033[48;5;61m", c("#5f5fd7"): "\033[48;5;62m", c("#5f5fff"): "\033[48;5;63m",
+			c("#5f8700"): "\033[48;5;64m", c("#5f875f"): "\033[48;5;65m", c("#5f8787"): "\033[48;5;66m", c("#5f87af"): "\033[48;5;67m",
+			c("#5f87d7"): "\033[48;5;68m", c("#5f87ff"): "\033[48;5;69m", c("#5faf00"): "\033[48;5;70m", c("#5faf5f"): "\033[48;5;71m",
+			c("#5faf87"): "\033[48;5;72m", c("#5fafaf"): "\033[48;5;73m", c("#5fafd7"): "\033[48;5;74m", c("#5fafff"): "\033[48;5;75m",
+			c("#5fd700"): "\033[48;5;76m", c("#5fd75f"): "\033[48;5;77m", c("#5fd787"): "\033[48;5;78m", c("#5fd7af"): "\033[48;5;79m",
+			c("#5fd7d7"): "\033[48;5;80m", c("#5fd7ff"): "\033[48;5;81m", c("#5fff00"): "\033[48;5;82m", c("#5fff5f"): "\033[48;5;83m",
+			c("#5fff87"): "\033[48;5;84m", c("#5fffaf"): "\033[48;5;85m", c("#5fffd7"): "\033[48;5;86m", c("#5fffff"): "\033[48;5;87m",
+			c("#870000"): "\033[48;5;88m", c("#87005f"): "\033[48;5;89m", c("#870087"): "\033[48;5;90m", c("#8700af"): "\033[48;5;91m",
+			c("#8700d7"): "\033[48;5;92m", c("#8700ff"): "\033[48;5;93m", c("#875f00"): "\033[48;5;94m", c("#875f5f"): "\033[48;5;95m",
+			c("#875f87"): "\033[48;5;96m", c("#875faf"): "\033[48;5;97m", c("#875fd7"): "\033[48;5;98m", c("#875fff"): "\033[48;5;99m",
+			c("#878700"): "\033[48;5;100m", c("#87875f"): "\033[48;5;101m", c("#878787"): "\033[48;5;102m", c("#8787af"): "\033[48;5;103m",
+			c("#8787d7"): "\033[48;5;104m", c("#8787ff"): "\033[48;5;105m", c("#87af00"): "\033[48;5;106m", c("#87af5f"): "\033[48;5;107m",
+			c("#87af87"): "\033[48;5;108m", c("#87afaf"): "\033[48;5;109m", c("#87afd7"): "\033[48;5;110m", c("#87afff"): "\033[48;5;111m",
+			c("#87d700"): "\033[48;5;112m", c("#87d75f"): "\033[48;5;113m", c("#87d787"): "\033[48;5;114m", c("#87d7af"): "\033[48;5;115m",
+			c("#87d7d7"): "\033[48;5;116m", c("#87d7ff"): "\033[48;5;117m", c("#87ff00"): "\033[48;5;118m", c("#87ff5f"): "\033[48;5;119m",
+			c("#87ff87"): "\033[48;5;120m", c("#87ffaf"): "\033[48;5;121m", c("#87ffd7"): "\033[48;5;122m", c("#87ffff"): "\033[48;5;123m",
+			c("#af0000"): "\033[48;5;124m", c("#af005f"): "\033[48;5;125m", c("#af0087"): "\033[48;5;126m", c("#af00af"): "\033[48;5;127m",
+			c("#af00d7"): "\033[48;5;128m", c("#af00ff"): "\033[48;5;129m", c("#af5f00"): "\033[48;5;130m", c("#af5f5f"): "\033[48;5;131m",
+			c("#af5f87"): "\033[48;5;132m", c("#af5faf"): "\033[48;5;133m", c("#af5fd7"): "\033[48;5;134m", c("#af5fff"): "\033[48;5;135m",
+			c("#af8700"): "\033[48;5;136m", c("#af875f"): "\033[48;5;137m", c("#af8787"): "\033[48;5;138m", c("#af87af"): "\033[48;5;139m",
+			c("#af87d7"): "\033[48;5;140m", c("#af87ff"): "\033[48;5;141m", c("#afaf00"): "\033[48;5;142m", c("#afaf5f"): "\033[48;5;143m",
+			c("#afaf87"): "\033[48;5;144m", c("#afafaf"): "\033[48;5;145m", c("#afafd7"): "\033[48;5;146m", c("#afafff"): "\033[48;5;147m",
+			c("#afd700"): "\033[48;5;148m", c("#afd75f"): "\033[48;5;149m", c("#afd787"): "\033[48;5;150m", c("#afd7af"): "\033[48;5;151m",
+			c("#afd7d7"): "\033[48;5;152m", c("#afd7ff"): "\033[48;5;153m", c("#afff00"): "\033[48;5;154m", c("#afff5f"): "\033[48;5;155m",
+			c("#afff87"): "\033[48;5;156m", c("#afffaf"): "\033[48;5;157m", c("#afffd7"): "\033[48;5;158m", c("#afffff"): "\033[48;5;159m",
+			c("#d70000"): "\033[48;5;160m", c("#d7005f"): "\033[48;5;161m", c("#d70087"): "\033[48;5;162m", c("#d700af"): "\033[48;5;163m",
+			c("#d700d7"): "\033[48;5;164m", c("#d700ff"): "\033[48;5;165m", c("#d75f00"): "\033[48;5;166m", c("#d75f5f"): "\033[48;5;167m",
+			c("#d75f87"): "\033[48;5;168m", c("#d75faf"): "\033[48;5;169m", c("#d75fd7"): "\033[48;5;170m", c("#d75fff"): "\033[48;5;171m",
+			c("#d78700"): "\033[48;5;172m", c("#d7875f"): "\033[48;5;173m", c("#d78787"): "\033[48;5;174m", c("#d787af"): "\033[48;5;175m",
+			c("#d787d7"): "\033[48;5;176m", c("#d787ff"): "\033[48;5;177m", c("#d7af00"): "\033[48;5;178m", c("#d7af5f"): "\033[48;5;179m",
+			c("#d7af87"): "\033[48;5;180m", c("#d7afaf"): "\033[48;5;181m", c("#d7afd7"): "\033[48;5;182m", c("#d7afff"): "\033[48;5;183m",
+			c("#d7d700"): "\033[48;5;184m", c("#d7d75f"): "\033[48;5;185m", c("#d7d787"): "\033[48;5;186m", c("#d7d7af"): "\033[48;5;187m",
+			c("#d7d7d7"): "\033[48;5;188m", c("#d7d7ff"): "\033[48;5;189m", c("#d7ff00"): "\033[48;5;190m", c("#d7ff5f"): "\033[48;5;191m",
+			c("#d7ff87"): "\033[48;5;192m", c("#d7ffaf"): "\033[48;5;193m", c("#d7ffd7"): "\033[48;5;194m", c("#d7ffff"): "\033[48;5;195m",
+			c("#ff0000"): "\033[48;5;196m", c("#ff005f"): "\033[48;5;197m", c("#ff0087"): "\033[48;5;198m", c("#ff00af"): "\033[48;5;199m",
+			c("#ff00d7"): "\033[48;5;200m", c("#ff00ff"): "\033[48;5;201m", c("#ff5f00"): "\033[48;5;202m", c("#ff5f5f"): "\033[48;5;203m",
+			c("#ff5f87"): "\033[48;5;204m", c("#ff5faf"): "\033[48;5;205m", c("#ff5fd7"): "\033[48;5;206m", c("#ff5fff"): "\033[48;5;207m",
+			c("#ff8700"): "\033[48;5;208m", c("#ff875f"): "\033[48;5;209m", c("#ff8787"): "\033[48;5;210m", c("#ff87af"): "\033[48;5;211m",
+			c("#ff87d7"): "\033[48;5;212m", c("#ff87ff"): "\033[48;5;213m", c("#ffaf00"): "\033[48;5;214m", c("#ffaf5f"): "\033[48;5;215m",
+			c("#ffaf87"): "\033[48;5;216m", c("#ffafaf"): "\033[48;5;217m", c("#ffafd7"): "\033[48;5;218m", c("#ffafff"): "\033[48;5;219m",
+			c("#ffd700"): "\033[48;5;220m", c("#ffd75f"): "\033[48;5;221m", c("#ffd787"): "\033[48;5;222m", c("#ffd7af"): "\033[48;5;223m",
+			c("#ffd7d7"): "\033[48;5;224m", c("#ffd7ff"): "\033[48;5;225m", c("#ffff00"): "\033[48;5;226m", c("#ffff5f"): "\033[48;5;227m",
+			c("#ffff87"): "\033[48;5;228m", c("#ffffaf"): "\033[48;5;229m", c("#ffffd7"): "\033[48;5;230m", c("#ffffff"): "\033[48;5;231m",
+			c("#080808"): "\033[48;5;232m", c("#121212"): "\033[48;5;233m", c("#1c1c1c"): "\033[48;5;234m", c("#262626"): "\033[48;5;235m",
+			c("#303030"): "\033[48;5;236m", c("#3a3a3a"): "\033[48;5;237m", c("#444444"): "\033[48;5;238m", c("#4e4e4e"): "\033[48;5;239m",
+			c("#585858"): "\033[48;5;240m", c("#626262"): "\033[48;5;241m", c("#6c6c6c"): "\033[48;5;242m", c("#767676"): "\033[48;5;243m",
+			c("#808080"): "\033[48;5;244m", c("#8a8a8a"): "\033[48;5;245m", c("#949494"): "\033[48;5;246m", c("#9e9e9e"): "\033[48;5;247m",
+			c("#a8a8a8"): "\033[48;5;248m", c("#b2b2b2"): "\033[48;5;249m", c("#bcbcbc"): "\033[48;5;250m", c("#c6c6c6"): "\033[48;5;251m",
+			c("#d0d0d0"): "\033[48;5;252m", c("#dadada"): "\033[48;5;253m", c("#e4e4e4"): "\033[48;5;254m", c("#eeeeee"): "\033[48;5;255m",
+		},
+	},
+}
+
+func entryToEscapeSequence(table *ttyTable, entry chroma.StyleEntry) string {
+	out := ""
+	if entry.Bold == chroma.Yes {
+		out += "\033[1m"
+	}
+	if entry.Underline == chroma.Yes {
+		out += "\033[4m"
+	}
+	if entry.Italic == chroma.Yes {
+		out += "\033[3m"
+	}
+	if entry.Colour.IsSet() {
+		out += table.foreground[findClosest(table, entry.Colour)]
+	}
+	if entry.Background.IsSet() {
+		out += table.background[findClosest(table, entry.Background)]
+	}
+	return out
+}
+
+func findClosest(table *ttyTable, seeking chroma.Colour) chroma.Colour {
+	closestColour := chroma.Colour(0)
+	closest := float64(math.MaxFloat64)
+	for colour := range table.foreground {
+		distance := colour.Distance(seeking)
+		if distance < closest {
+			closest = distance
+			closestColour = colour
+		}
+	}
+	return closestColour
+}
+
+func styleToEscapeSequence(table *ttyTable, style *chroma.Style) map[chroma.TokenType]string {
+	style = clearBackground(style)
+	out := map[chroma.TokenType]string{}
+	for _, ttype := range style.Types() {
+		entry := style.Get(ttype)
+		out[ttype] = entryToEscapeSequence(table, entry)
+	}
+	return out
+}
+
+// Clear the background colour.
+func clearBackground(style *chroma.Style) *chroma.Style {
+	builder := style.Builder()
+	bg := builder.Get(chroma.Background)
+	bg.Background = 0
+	bg.NoInherit = true
+	builder.AddEntry(chroma.Background, bg)
+	style, _ = builder.Build()
+	return style
+}
+
+type indexedTTYFormatter struct {
+	table *ttyTable
+}
+
+func (c *indexedTTYFormatter) Format(w io.Writer, style *chroma.Style, it chroma.Iterator) (err error) {
+	theme := styleToEscapeSequence(c.table, style)
+	for token := it(); token != chroma.EOF; token = it() {
+		// TODO: Cache token lookups?
+		clr, ok := theme[token.Type]
+		if !ok {
+			clr, ok = theme[token.Type.SubCategory()]
+			if !ok {
+				clr = theme[token.Type.Category()]
+				// if !ok {
+				// 	clr = theme[chroma.InheritStyle]
+				// }
+			}
+		}
+		if clr != "" {
+			fmt.Fprint(w, clr)
+		}
+		fmt.Fprint(w, token.Value)
+		if clr != "" {
+			fmt.Fprintf(w, "\033[0m")
+		}
+	}
+	return nil
+}
+
+// TTY8 is an 8-colour terminal formatter.
+//
+// The Lab colour space is used to map RGB values to the most appropriate index colour.
+var TTY8 = Register("terminal", &indexedTTYFormatter{ttyTables[8]})
+
+// TTY256 is a 256-colour terminal formatter.
+//
+// The Lab colour space is used to map RGB values to the most appropriate index colour.
+var TTY256 = Register("terminal256", &indexedTTYFormatter{ttyTables[256]})

vendor/github.com/alecthomas/chroma/formatters/tty_truecolour.go

@@ -0,0 +1,42 @@
+package formatters
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/alecthomas/chroma"
+)
+
+// TTY16m is a true-colour terminal formatter.
+var TTY16m = Register("terminal16m", chroma.FormatterFunc(trueColourFormatter))
+
+func trueColourFormatter(w io.Writer, style *chroma.Style, it chroma.Iterator) error {
+	style = clearBackground(style)
+	for token := it(); token != chroma.EOF; token = it() {
+		entry := style.Get(token.Type)
+		if !entry.IsZero() {
+			out := ""
+			if entry.Bold == chroma.Yes {
+				out += "\033[1m"
+			}
+			if entry.Underline == chroma.Yes {
+				out += "\033[4m"
+			}
+			if entry.Italic == chroma.Yes {
+				out += "\033[3m"
+			}
+			if entry.Colour.IsSet() {
+				out += fmt.Sprintf("\033[38;2;%d;%d;%dm", entry.Colour.Red(), entry.Colour.Green(), entry.Colour.Blue())
+			}
+			if entry.Background.IsSet() {
+				out += fmt.Sprintf("\033[48;2;%d;%d;%dm", entry.Background.Red(), entry.Background.Green(), entry.Background.Blue())
+			}
+			fmt.Fprint(w, out)
+		}
+		fmt.Fprint(w, token.Value)
+		if !entry.IsZero() {
+			fmt.Fprint(w, "\033[0m")
+		}
+	}
+	return nil
+}

vendor/github.com/alecthomas/chroma/go.mod

@@ -0,0 +1,19 @@
+module github.com/alecthomas/chroma
+
+require (
+	github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38
+	github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721 // indirect
+	github.com/alecthomas/kong v0.2.1-0.20190708041108-0548c6b1afae
+	github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 // indirect
+	github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964
+	github.com/dlclark/regexp2 v1.1.6
+	github.com/mattn/go-colorable v0.0.9
+	github.com/mattn/go-isatty v0.0.4
+	github.com/sergi/go-diff v1.0.0 // indirect
+	github.com/stretchr/testify v1.3.0 // indirect
+	golang.org/x/sys v0.0.0-20181128092732-4ed8d59d0b35 // indirect
+)
+
+replace github.com/GeertJohan/go.rice => github.com/alecthomas/go.rice v1.0.1-0.20190719113735-961b99d742e7
+
+go 1.13

vendor/github.com/alecthomas/chroma/go.sum

@@ -0,0 +1,33 @@
+github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38 h1:smF2tmSOzy2Mm+0dGI2AIUHY+w0BUc+4tn40djz7+6U=
+github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38/go.mod h1:r7bzyVFMNntcxPZXK3/+KdruV1H5KSlyVY0gc+NgInI=
+github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721 h1:JHZL0hZKJ1VENNfmXvHbgYlbUOvpzYzvy2aZU5gXVeo=
+github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721/go.mod h1:QO9JBoKquHd+jz9nshCh40fOfO+JzsoXy8qTHF68zU0=
+github.com/alecthomas/kong v0.2.1-0.20190708041108-0548c6b1afae h1:C4Q9m+oXOxcSWwYk9XzzafY2xAVAaeubZbUHJkw3PlY=
+github.com/alecthomas/kong v0.2.1-0.20190708041108-0548c6b1afae/go.mod h1:+inYUSluD+p4L8KdviBSgzcqEjUQOfC5fQDRFuc36lI=
+github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 h1:p9Sln00KOTlrYkxI1zYWl1QLnEqAqEARBEYa8FQnQcY=
+github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
+github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964 h1:y5HC9v93H5EPKqaS1UYVg1uYah5Xf51mBfIoWehClUQ=
+github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964/go.mod h1:Xd9hchkHSWYkEqJwUGisez3G1QY8Ryz0sdWrLPMGjLk=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dlclark/regexp2 v1.1.6 h1:CqB4MjHw0MFCDj+PHHjiESmHX+N7t0tJzKvC6M97BRg=
+github.com/dlclark/regexp2 v1.1.6/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
+github.com/mattn/go-colorable v0.0.9 h1:UVL0vNpWh04HeJXV0KLcaT7r06gOH2l4OW6ddYRUIY4=
+github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
+github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=
+github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
+github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sergi/go-diff v1.0.0 h1:Kpca3qRNrduNnOQeazBd0ysaKrUJiIuISHxogkT9RPQ=
+github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+golang.org/x/sys v0.0.0-20181128092732-4ed8d59d0b35 h1:YAFjXN64LMvktoUZH9zgY4lGc/msGN7HQfoSuKCgaDU=
+golang.org/x/sys v0.0.0-20181128092732-4ed8d59d0b35/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=

vendor/github.com/alecthomas/chroma/iterator.go

@@ -0,0 +1,76 @@
+package chroma
+
+import "strings"
+
+// An Iterator across tokens.
+//
+// nil will be returned at the end of the Token stream.
+//
+// If an error occurs within an Iterator, it may propagate this in a panic. Formatters should recover.
+type Iterator func() Token
+
+// Tokens consumes all tokens from the iterator and returns them as a slice.
+func (i Iterator) Tokens() []Token {
+	var out []Token
+	for t := i(); t != EOF; t = i() {
+		out = append(out, t)
+	}
+	return out
+}
+
+// Concaterator concatenates tokens from a series of iterators.
+func Concaterator(iterators ...Iterator) Iterator {
+	return func() Token {
+		for len(iterators) > 0 {
+			t := iterators[0]()
+			if t != EOF {
+				return t
+			}
+			iterators = iterators[1:]
+		}
+		return EOF
+	}
+}
+
+// Literator converts a sequence of literal Tokens into an Iterator.
+func Literator(tokens ...Token) Iterator {
+	return func() Token {
+		if len(tokens) == 0 {
+			return EOF
+		}
+		token := tokens[0]
+		tokens = tokens[1:]
+		return token
+	}
+}
+
+// SplitTokensIntoLines splits tokens containing newlines in two.
+func SplitTokensIntoLines(tokens []Token) (out [][]Token) {
+	var line []Token // nolint: prealloc
+	for _, token := range tokens {
+		for strings.Contains(token.Value, "\n") {
+			parts := strings.SplitAfterN(token.Value, "\n", 2)
+			// Token becomes the tail.
+			token.Value = parts[1]
+
+			// Append the head to the line and flush the line.
+			clone := token.Clone()
+			clone.Value = parts[0]
+			line = append(line, clone)
+			out = append(out, line)
+			line = nil
+		}
+		line = append(line, token)
+	}
+	if len(line) > 0 {
+		out = append(out, line)
+	}
+	// Strip empty trailing token line.
+	if len(out) > 0 {
+		last := out[len(out)-1]
+		if len(last) == 1 && last[0].Value == "" {
+			out = out[:len(out)-1]
+		}
+	}
+	return
+}

vendor/github.com/alecthomas/chroma/lexer.go

@@ -0,0 +1,120 @@
+package chroma
+
+import (
+	"fmt"
+)
+
+var (
+	defaultOptions = &TokeniseOptions{
+		State: "root",
+	}
+)
+
+// Config for a lexer.
+type Config struct {
+	// Name of the lexer.
+	Name string
+
+	// Shortcuts for the lexer
+	Aliases []string
+
+	// File name globs
+	Filenames []string
+
+	// Secondary file name globs
+	AliasFilenames []string
+
+	// MIME types
+	MimeTypes []string
+
+	// Regex matching is case-insensitive.
+	CaseInsensitive bool
+
+	// Regex matches all characters.
+	DotAll bool
+
+	// Regex does not match across lines ($ matches EOL).
+	//
+	// Defaults to multiline.
+	NotMultiline bool
+
+	// Don't strip leading and trailing newlines from the input.
+	// DontStripNL bool
+
+	// Strip all leading and trailing whitespace from the input
+	// StripAll bool
+
+	// Make sure that the input ends with a newline. This
+	// is required for some lexers that consume input linewise.
+	EnsureNL bool
+
+	// If given and greater than 0, expand tabs in the input.
+	// TabSize int
+
+	// Priority of lexer.
+	//
+	// If this is 0 it will be treated as a default of 1.
+	Priority float32
+}
+
+// Token output to formatter.
+type Token struct {
+	Type  TokenType `json:"type"`
+	Value string    `json:"value"`
+}
+
+func (t *Token) String() string   { return t.Value }
+func (t *Token) GoString() string { return fmt.Sprintf("&Token{%s, %q}", t.Type, t.Value) }
+
+// Clone returns a clone of the Token.
+func (t *Token) Clone() Token {
+	return *t
+}
+
+// EOF is returned by lexers at the end of input.
+var EOF Token
+
+// TokeniseOptions contains options for tokenisers.
+type TokeniseOptions struct {
+	// State to start tokenisation in. Defaults to "root".
+	State string
+	// Nested tokenisation.
+	Nested bool
+}
+
+// A Lexer for tokenising source code.
+type Lexer interface {
+	// Config describing the features of the Lexer.
+	Config() *Config
+	// Tokenise returns an Iterator over tokens in text.
+	Tokenise(options *TokeniseOptions, text string) (Iterator, error)
+}
+
+// Lexers is a slice of lexers sortable by name.
+type Lexers []Lexer
+
+func (l Lexers) Len() int           { return len(l) }
+func (l Lexers) Swap(i, j int)      { l[i], l[j] = l[j], l[i] }
+func (l Lexers) Less(i, j int) bool { return l[i].Config().Name < l[j].Config().Name }
+
+// PrioritisedLexers is a slice of lexers sortable by priority.
+type PrioritisedLexers []Lexer
+
+func (l PrioritisedLexers) Len() int      { return len(l) }
+func (l PrioritisedLexers) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
+func (l PrioritisedLexers) Less(i, j int) bool {
+	ip := l[i].Config().Priority
+	if ip == 0 {
+		ip = 1
+	}
+	jp := l[j].Config().Priority
+	if jp == 0 {
+		jp = 1
+	}
+	return ip > jp
+}
+
+// Analyser determines how appropriate this lexer is for the given text.
+type Analyser interface {
+	AnalyseText(text string) float32
+}

vendor/github.com/alecthomas/chroma/lexers/README.md

@@ -0,0 +1,37 @@
+# Lexer tests
+
+The tests in this directory feed a known input `testdata/<name>.actual` into the parser for `<name>` and check
+that its output matches `<name>.exported`.
+
+## Running the tests
+
+Run the tests as normal:
+```go
+go test ./lexers
+```
+
+## Update existing tests
+When you add a new test data file (`*.actual`), you need to regenerate all tests. That's how Chroma creates the `*.expected` test file based on the corresponding lexer.
+
+To regenerate all tests, type in your terminal:
+
+```go
+RECORD=true go test ./lexers
+```
+
+This first sets the `RECORD` environment variable to `true`. Then it runs `go test` on the `./lexers` directory of the Chroma project.
+
+(That environment variable tells Chroma it needs to output test data. After running `go test ./lexers` you can remove or reset that variable.)
+
+### Windows users
+Windows users will find that the `RECORD=true go test ./lexers` command fails in both the standard command prompt terminal and in PowerShell.
+
+Instead we have to perform both steps separately:
+
+- Set the `RECORD` environment variable to `true`.
+	+ In the regular command prompt window, the `set` command sets an environment variable for the current session: `set RECORD=true`. See [this page](https://superuser.com/questions/212150/how-to-set-env-variable-in-windows-cmd-line) for more.
+	+ In PowerShell, you can use the `$env:RECORD = 'true'` command for that. See [this article](https://mcpmag.com/articles/2019/03/28/environment-variables-in-powershell.aspx) for more.
+	+ You can also make a persistent environment variable by hand in the Windows computer settings. See [this article](https://www.computerhope.com/issues/ch000549.htm) for how.
+- When the environment variable is set, run `go tests ./lexers`.
+
+Chroma will now regenerate the test files and print its results to the console window.

vendor/github.com/alecthomas/chroma/lexers/a/abap.go

@@ -0,0 +1,56 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// ABAP lexer.
+var Abap = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "ABAP",
+		Aliases:         []string{"abap"},
+		Filenames:       []string{"*.abap", "*.ABAP"},
+		MimeTypes:       []string{"text/x-abap"},
+		CaseInsensitive: true,
+	},
+	Rules{
+		"common": {
+			{`\s+`, Text, nil},
+			{`^\*.*$`, CommentSingle, nil},
+			{`\".*?\n`, CommentSingle, nil},
+			{`##\w+`, CommentSpecial, nil},
+		},
+		"variable-names": {
+			{`<\S+>`, NameVariable, nil},
+			{`\w[\w~]*(?:(\[\])|->\*)?`, NameVariable, nil},
+		},
+		"root": {
+			Include("common"),
+			{`CALL\s+(?:BADI|CUSTOMER-FUNCTION|FUNCTION)`, Keyword, nil},
+			{`(CALL\s+(?:DIALOG|SCREEN|SUBSCREEN|SELECTION-SCREEN|TRANSACTION|TRANSFORMATION))\b`, Keyword, nil},
+			{`(FORM|PERFORM)(\s+)(\w+)`, ByGroups(Keyword, Text, NameFunction), nil},
+			{`(PERFORM)(\s+)(\()(\w+)(\))`, ByGroups(Keyword, Text, Punctuation, NameVariable, Punctuation), nil},
+			{`(MODULE)(\s+)(\S+)(\s+)(INPUT|OUTPUT)`, ByGroups(Keyword, Text, NameFunction, Text, Keyword), nil},
+			{`(METHOD)(\s+)([\w~]+)`, ByGroups(Keyword, Text, NameFunction), nil},
+			{`(\s+)([\w\-]+)([=\-]>)([\w\-~]+)`, ByGroups(Text, NameVariable, Operator, NameFunction), nil},
+			{`(?<=(=|-)>)([\w\-~]+)(?=\()`, NameFunction, nil},
+			{`(TEXT)(-)(\d{3})`, ByGroups(Keyword, Punctuation, LiteralNumberInteger), nil},
+			{`(TEXT)(-)(\w{3})`, ByGroups(Keyword, Punctuation, NameVariable), nil},
+			{`(ADD-CORRESPONDING|AUTHORITY-CHECK|CLASS-DATA|CLASS-EVENTS|CLASS-METHODS|CLASS-POOL|DELETE-ADJACENT|DIVIDE-CORRESPONDING|EDITOR-CALL|ENHANCEMENT-POINT|ENHANCEMENT-SECTION|EXIT-COMMAND|FIELD-GROUPS|FIELD-SYMBOLS|FUNCTION-POOL|INTERFACE-POOL|INVERTED-DATE|LOAD-OF-PROGRAM|LOG-POINT|MESSAGE-ID|MOVE-CORRESPONDING|MULTIPLY-CORRESPONDING|NEW-LINE|NEW-PAGE|NEW-SECTION|NO-EXTENSION|OUTPUT-LENGTH|PRINT-CONTROL|SELECT-OPTIONS|START-OF-SELECTION|SUBTRACT-CORRESPONDING|SYNTAX-CHECK|SYSTEM-EXCEPTIONS|TYPE-POOL|TYPE-POOLS|NO-DISPLAY)\b`, Keyword, nil},
+			{`(?<![-\>])(CREATE\s+(PUBLIC|PRIVATE|DATA|OBJECT)|(PUBLIC|PRIVATE|PROTECTED)\s+SECTION|(TYPE|LIKE)\s+((LINE\s+OF|REF\s+TO|(SORTED|STANDARD|HASHED)\s+TABLE\s+OF))?|FROM\s+(DATABASE|MEMORY)|CALL\s+METHOD|(GROUP|ORDER) BY|HAVING|SEPARATED BY|GET\s+(BADI|BIT|CURSOR|DATASET|LOCALE|PARAMETER|PF-STATUS|(PROPERTY|REFERENCE)\s+OF|RUN\s+TIME|TIME\s+(STAMP)?)?|SET\s+(BIT|BLANK\s+LINES|COUNTRY|CURSOR|DATASET|EXTENDED\s+CHECK|HANDLER|HOLD\s+DATA|LANGUAGE|LEFT\s+SCROLL-BOUNDARY|LOCALE|MARGIN|PARAMETER|PF-STATUS|PROPERTY\s+OF|RUN\s+TIME\s+(ANALYZER|CLOCK\s+RESOLUTION)|SCREEN|TITLEBAR|UPADTE\s+TASK\s+LOCAL|USER-COMMAND)|CONVERT\s+((INVERTED-)?DATE|TIME|TIME\s+STAMP|TEXT)|(CLOSE|OPEN)\s+(DATASET|CURSOR)|(TO|FROM)\s+(DATA BUFFER|INTERNAL TABLE|MEMORY ID|DATABASE|SHARED\s+(MEMORY|BUFFER))|DESCRIBE\s+(DISTANCE\s+BETWEEN|FIELD|LIST|TABLE)|FREE\s(MEMORY|OBJECT)?|PROCESS\s+(BEFORE\s+OUTPUT|AFTER\s+INPUT|ON\s+(VALUE-REQUEST|HELP-REQUEST))|AT\s+(LINE-SELECTION|USER-COMMAND|END\s+OF|NEW)|AT\s+SELECTION-SCREEN(\s+(ON(\s+(BLOCK|(HELP|VALUE)-REQUEST\s+FOR|END\s+OF|RADIOBUTTON\s+GROUP))?|OUTPUT))?|SELECTION-SCREEN:?\s+((BEGIN|END)\s+OF\s+((TABBED\s+)?BLOCK|LINE|SCREEN)|COMMENT|FUNCTION\s+KEY|INCLUDE\s+BLOCKS|POSITION|PUSHBUTTON|SKIP|ULINE)|LEAVE\s+(LIST-PROCESSING|PROGRAM|SCREEN|TO LIST-PROCESSING|TO TRANSACTION)(ENDING|STARTING)\s+AT|FORMAT\s+(COLOR|INTENSIFIED|INVERSE|HOTSPOT|INPUT|FRAMES|RESET)|AS\s+(CHECKBOX|SUBSCREEN|WINDOW)|WITH\s+(((NON-)?UNIQUE)?\s+KEY|FRAME)|(BEGIN|END)\s+OF|DELETE(\s+ADJACENT\s+DUPLICATES\sFROM)?|COMPARING(\s+ALL\s+FIELDS)?|(INSERT|APPEND)(\s+INITIAL\s+LINE\s+(IN)?TO|\s+LINES\s+OF)?|IN\s+((BYTE|CHARACTER)\s+MODE|PROGRAM)|END-OF-(DEFINITION|PAGE|SELECTION)|WITH\s+FRAME(\s+TITLE)|(REPLACE|FIND)\s+((FIRST|ALL)\s+OCCURRENCES?\s+OF\s+)?(SUBSTRING|REGEX)?|MATCH\s+(LENGTH|COUNT|LINE|OFFSET)|(RESPECTING|IGNORING)\s+CASE|IN\s+UPDATE\s+TASK|(SOURCE|RESULT)\s+(XML)?|REFERENCE\s+INTO|AND\s+(MARK|RETURN)|CLIENT\s+SPECIFIED|CORRESPONDING\s+FIELDS\s+OF|IF\s+FOUND|FOR\s+EVENT|INHERITING\s+FROM|LEAVE\s+TO\s+SCREEN|LOOP\s+AT\s+(SCREEN)?|LOWER\s+CASE|MATCHCODE\s+OBJECT|MODIF\s+ID|MODIFY\s+SCREEN|NESTING\s+LEVEL|NO\s+INTERVALS|OF\s+STRUCTURE|RADIOBUTTON\s+GROUP|RANGE\s+OF|REF\s+TO|SUPPRESS DIALOG|TABLE\s+OF|UPPER\s+CASE|TRANSPORTING\s+NO\s+FIELDS|VALUE\s+CHECK|VISIBLE\s+LENGTH|HEADER\s+LINE|COMMON\s+PART)\b`, Keyword, nil},
+			{`(^|(?<=(\s|\.)))(ABBREVIATED|ABSTRACT|ADD|ALIASES|ALIGN|ALPHA|ASSERT|AS|ASSIGN(ING)?|AT(\s+FIRST)?|BACK|BLOCK|BREAK-POINT|CASE|CATCH|CHANGING|CHECK|CLASS|CLEAR|COLLECT|COLOR|COMMIT|CREATE|COMMUNICATION|COMPONENTS?|COMPUTE|CONCATENATE|CONDENSE|CONSTANTS|CONTEXTS|CONTINUE|CONTROLS|COUNTRY|CURRENCY|DATA|DATE|DECIMALS|DEFAULT|DEFINE|DEFINITION|DEFERRED|DEMAND|DETAIL|DIRECTORY|DIVIDE|DO|DUMMY|ELSE(IF)?|ENDAT|ENDCASE|ENDCATCH|ENDCLASS|ENDDO|ENDFORM|ENDFUNCTION|ENDIF|ENDINTERFACE|ENDLOOP|ENDMETHOD|ENDMODULE|ENDSELECT|ENDTRY|ENDWHILE|ENHANCEMENT|EVENTS|EXACT|EXCEPTIONS?|EXIT|EXPONENT|EXPORT|EXPORTING|EXTRACT|FETCH|FIELDS?|FOR|FORM|FORMAT|FREE|FROM|FUNCTION|HIDE|ID|IF|IMPORT|IMPLEMENTATION|IMPORTING|IN|INCLUDE|INCLUDING|INDEX|INFOTYPES|INITIALIZATION|INTERFACE|INTERFACES|INTO|LANGUAGE|LEAVE|LENGTH|LINES|LOAD|LOCAL|JOIN|KEY|NEXT|MAXIMUM|MESSAGE|METHOD[S]?|MINIMUM|MODULE|MODIFIER|MODIFY|MOVE|MULTIPLY|NODES|NUMBER|OBLIGATORY|OBJECT|OF|OFF|ON|OTHERS|OVERLAY|PACK|PAD|PARAMETERS|PERCENTAGE|POSITION|PROGRAM|PROVIDE|PUBLIC|PUT|PF\d\d|RAISE|RAISING|RANGES?|READ|RECEIVE|REDEFINITION|REFRESH|REJECT|REPORT|RESERVE|RESUME|RETRY|RETURN|RETURNING|RIGHT|ROLLBACK|REPLACE|SCROLL|SEARCH|SELECT|SHIFT|SIGN|SINGLE|SIZE|SKIP|SORT|SPLIT|STATICS|STOP|STYLE|SUBMATCHES|SUBMIT|SUBTRACT|SUM(?!\()|SUMMARY|SUMMING|SUPPLY|TABLE|TABLES|TIMESTAMP|TIMES?|TIMEZONE|TITLE|\??TO|TOP-OF-PAGE|TRANSFER|TRANSLATE|TRY|TYPES|ULINE|UNDER|UNPACK|UPDATE|USING|VALUE|VALUES|VIA|VARYING|VARY|WAIT|WHEN|WHERE|WIDTH|WHILE|WITH|WINDOW|WRITE|XSD|ZERO)\b`, Keyword, nil},
+			{`(abs|acos|asin|atan|boolc|boolx|bit_set|char_off|charlen|ceil|cmax|cmin|condense|contains|contains_any_of|contains_any_not_of|concat_lines_of|cos|cosh|count|count_any_of|count_any_not_of|dbmaxlen|distance|escape|exp|find|find_end|find_any_of|find_any_not_of|floor|frac|from_mixed|insert|lines|log|log10|match|matches|nmax|nmin|numofchar|repeat|replace|rescale|reverse|round|segment|shift_left|shift_right|sign|sin|sinh|sqrt|strlen|substring|substring_after|substring_from|substring_before|substring_to|tan|tanh|to_upper|to_lower|to_mixed|translate|trunc|xstrlen)(\()\b`, ByGroups(NameBuiltin, Punctuation), nil},
+			{`&[0-9]`, Name, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`(?<=(\s|.))(AND|OR|EQ|NE|GT|LT|GE|LE|CO|CN|CA|NA|CS|NOT|NS|CP|NP|BYTE-CO|BYTE-CN|BYTE-CA|BYTE-NA|BYTE-CS|BYTE-NS|IS\s+(NOT\s+)?(INITIAL|ASSIGNED|REQUESTED|BOUND))\b`, OperatorWord, nil},
+			Include("variable-names"),
+			{`[?*<>=\-+&]`, Operator, nil},
+			{`'(''|[^'])*'`, LiteralStringSingle, nil},
+			{"`([^`])*`", LiteralStringSingle, nil},
+			{`([|}])([^{}|]*?)([|{])`, ByGroups(Punctuation, LiteralStringSingle, Punctuation), nil},
+			{`[/;:()\[\],.]`, Punctuation, nil},
+			{`(!)(\w+)`, ByGroups(Operator, Name), nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/abnf.go

@@ -0,0 +1,38 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Abnf lexer.
+var Abnf = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "ABNF",
+		Aliases:   []string{"abnf"},
+		Filenames: []string{"*.abnf"},
+		MimeTypes: []string{"text/x-abnf"},
+	},
+	Rules{
+		"root": {
+			{`;.*$`, CommentSingle, nil},
+			{`(%[si])?"[^"]*"`, Literal, nil},
+			{`%b[01]+\-[01]+\b`, Literal, nil},
+			{`%b[01]+(\.[01]+)*\b`, Literal, nil},
+			{`%d[0-9]+\-[0-9]+\b`, Literal, nil},
+			{`%d[0-9]+(\.[0-9]+)*\b`, Literal, nil},
+			{`%x[0-9a-fA-F]+\-[0-9a-fA-F]+\b`, Literal, nil},
+			{`%x[0-9a-fA-F]+(\.[0-9a-fA-F]+)*\b`, Literal, nil},
+			{`\b[0-9]+\*[0-9]+`, Operator, nil},
+			{`\b[0-9]+\*`, Operator, nil},
+			{`\b[0-9]+`, Operator, nil},
+			{`\*`, Operator, nil},
+			{Words(``, `\b`, `ALPHA`, `BIT`, `CHAR`, `CR`, `CRLF`, `CTL`, `DIGIT`, `DQUOTE`, `HEXDIG`, `HTAB`, `LF`, `LWSP`, `OCTET`, `SP`, `VCHAR`, `WSP`), Keyword, nil},
+			{`[a-zA-Z][a-zA-Z0-9-]+\b`, NameClass, nil},
+			{`(=/|=|/)`, Operator, nil},
+			{`[\[\]()]`, Punctuation, nil},
+			{`\s+`, Text, nil},
+			{`.`, Text, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/actionscript.go

@@ -0,0 +1,39 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Actionscript lexer.
+var Actionscript = internal.Register(MustNewLexer(
+	&Config{
+		Name:         "ActionScript",
+		Aliases:      []string{"as", "actionscript"},
+		Filenames:    []string{"*.as"},
+		MimeTypes:    []string{"application/x-actionscript", "text/x-actionscript", "text/actionscript"},
+		NotMultiline: true,
+		DotAll:       true,
+	},
+	Rules{
+		"root": {
+			{`\s+`, Text, nil},
+			{`//.*?\n`, CommentSingle, nil},
+			{`/\*.*?\*/`, CommentMultiline, nil},
+			{`/(\\\\|\\/|[^/\n])*/[gim]*`, LiteralStringRegex, nil},
+			{`[~^*!%&<>|+=:;,/?\\-]+`, Operator, nil},
+			{`[{}\[\]();.]+`, Punctuation, nil},
+			{Words(``, `\b`, `case`, `default`, `for`, `each`, `in`, `while`, `do`, `break`, `return`, `continue`, `if`, `else`, `throw`, `try`, `catch`, `var`, `with`, `new`, `typeof`, `arguments`, `instanceof`, `this`, `switch`), Keyword, nil},
+			{Words(``, `\b`, `class`, `public`, `final`, `internal`, `native`, `override`, `private`, `protected`, `static`, `import`, `extends`, `implements`, `interface`, `intrinsic`, `return`, `super`, `dynamic`, `function`, `const`, `get`, `namespace`, `package`, `set`), KeywordDeclaration, nil},
+			{`(true|false|null|NaN|Infinity|-Infinity|undefined|Void)\b`, KeywordConstant, nil},
+			{Words(``, `\b`, `Accessibility`, `AccessibilityProperties`, `ActionScriptVersion`, `ActivityEvent`, `AntiAliasType`, `ApplicationDomain`, `AsBroadcaster`, `Array`, `AsyncErrorEvent`, `AVM1Movie`, `BevelFilter`, `Bitmap`, `BitmapData`, `BitmapDataChannel`, `BitmapFilter`, `BitmapFilterQuality`, `BitmapFilterType`, `BlendMode`, `BlurFilter`, `Boolean`, `ByteArray`, `Camera`, `Capabilities`, `CapsStyle`, `Class`, `Color`, `ColorMatrixFilter`, `ColorTransform`, `ContextMenu`, `ContextMenuBuiltInItems`, `ContextMenuEvent`, `ContextMenuItem`, `ConvultionFilter`, `CSMSettings`, `DataEvent`, `Date`, `DefinitionError`, `DeleteObjectSample`, `Dictionary`, `DisplacmentMapFilter`, `DisplayObject`, `DisplacmentMapFilterMode`, `DisplayObjectContainer`, `DropShadowFilter`, `Endian`, `EOFError`, `Error`, `ErrorEvent`, `EvalError`, `Event`, `EventDispatcher`, `EventPhase`, `ExternalInterface`, `FileFilter`, `FileReference`, `FileReferenceList`, `FocusDirection`, `FocusEvent`, `Font`, `FontStyle`, `FontType`, `FrameLabel`, `FullScreenEvent`, `Function`, `GlowFilter`, `GradientBevelFilter`, `GradientGlowFilter`, `GradientType`, `Graphics`, `GridFitType`, `HTTPStatusEvent`, `IBitmapDrawable`, `ID3Info`, `IDataInput`, `IDataOutput`, `IDynamicPropertyOutputIDynamicPropertyWriter`, `IEventDispatcher`, `IExternalizable`, `IllegalOperationError`, `IME`, `IMEConversionMode`, `IMEEvent`, `int`, `InteractiveObject`, `InterpolationMethod`, `InvalidSWFError`, `InvokeEvent`, `IOError`, `IOErrorEvent`, `JointStyle`, `Key`, `Keyboard`, `KeyboardEvent`, `KeyLocation`, `LineScaleMode`, `Loader`, `LoaderContext`, `LoaderInfo`, `LoadVars`, `LocalConnection`, `Locale`, `Math`, `Matrix`, `MemoryError`, `Microphone`, `MorphShape`, `Mouse`, `MouseEvent`, `MovieClip`, `MovieClipLoader`, `Namespace`, `NetConnection`, `NetStatusEvent`, `NetStream`, `NewObjectSample`, `Number`, `Object`, `ObjectEncoding`, `PixelSnapping`, `Point`, `PrintJob`, `PrintJobOptions`, `PrintJobOrientation`, `ProgressEvent`, `Proxy`, `QName`, `RangeError`, `Rectangle`, `ReferenceError`, `RegExp`, `Responder`, `Sample`, `Scene`, `ScriptTimeoutError`, `Security`, `SecurityDomain`, `SecurityError`, `SecurityErrorEvent`, `SecurityPanel`, `Selection`, `Shape`, `SharedObject`, `SharedObjectFlushStatus`, `SimpleButton`, `Socket`, `Sound`, `SoundChannel`, `SoundLoaderContext`, `SoundMixer`, `SoundTransform`, `SpreadMethod`, `Sprite`, `StackFrame`, `StackOverflowError`, `Stage`, `StageAlign`, `StageDisplayState`, `StageQuality`, `StageScaleMode`, `StaticText`, `StatusEvent`, `String`, `StyleSheet`, `SWFVersion`, `SyncEvent`, `SyntaxError`, `System`, `TextColorType`, `TextField`, `TextFieldAutoSize`, `TextFieldType`, `TextFormat`, `TextFormatAlign`, `TextLineMetrics`, `TextRenderer`, `TextSnapshot`, `Timer`, `TimerEvent`, `Transform`, `TypeError`, `uint`, `URIError`, `URLLoader`, `URLLoaderDataFormat`, `URLRequest`, `URLRequestHeader`, `URLRequestMethod`, `URLStream`, `URLVariabeles`, `VerifyError`, `Video`, `XML`, `XMLDocument`, `XMLList`, `XMLNode`, `XMLNodeType`, `XMLSocket`, `XMLUI`), NameBuiltin, nil},
+			{Words(``, `\b`, `decodeURI`, `decodeURIComponent`, `encodeURI`, `escape`, `eval`, `isFinite`, `isNaN`, `isXMLName`, `clearInterval`, `fscommand`, `getTimer`, `getURL`, `getVersion`, `parseFloat`, `parseInt`, `setInterval`, `trace`, `updateAfterEvent`, `unescape`), NameFunction, nil},
+			{`[$a-zA-Z_]\w*`, NameOther, nil},
+			{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
+			{`0x[0-9a-f]+`, LiteralNumberHex, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`"(\\\\|\\"|[^"])*"`, LiteralStringDouble, nil},
+			{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/actionscript3.go

@@ -0,0 +1,56 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Actionscript 3 lexer.
+var Actionscript3 = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "ActionScript 3",
+		Aliases:   []string{"as3", "actionscript3"},
+		Filenames: []string{"*.as"},
+		MimeTypes: []string{"application/x-actionscript3", "text/x-actionscript3", "text/actionscript3"},
+		DotAll:    true,
+	},
+	Rules{
+		"root": {
+			{`\s+`, Text, nil},
+			{`(function\s+)([$a-zA-Z_]\w*)(\s*)(\()`, ByGroups(KeywordDeclaration, NameFunction, Text, Operator), Push("funcparams")},
+			{`(var|const)(\s+)([$a-zA-Z_]\w*)(\s*)(:)(\s*)([$a-zA-Z_]\w*(?:\.<\w+>)?)`, ByGroups(KeywordDeclaration, Text, Name, Text, Punctuation, Text, KeywordType), nil},
+			{`(import|package)(\s+)((?:[$a-zA-Z_]\w*|\.)+)(\s*)`, ByGroups(Keyword, Text, NameNamespace, Text), nil},
+			{`(new)(\s+)([$a-zA-Z_]\w*(?:\.<\w+>)?)(\s*)(\()`, ByGroups(Keyword, Text, KeywordType, Text, Operator), nil},
+			{`//.*?\n`, CommentSingle, nil},
+			{`/\*.*?\*/`, CommentMultiline, nil},
+			{`/(\\\\|\\/|[^\n])*/[gisx]*`, LiteralStringRegex, nil},
+			{`(\.)([$a-zA-Z_]\w*)`, ByGroups(Operator, NameAttribute), nil},
+			{`(case|default|for|each|in|while|do|break|return|continue|if|else|throw|try|catch|with|new|typeof|arguments|instanceof|this|switch|import|include|as|is)\b`, Keyword, nil},
+			{`(class|public|final|internal|native|override|private|protected|static|import|extends|implements|interface|intrinsic|return|super|dynamic|function|const|get|namespace|package|set)\b`, KeywordDeclaration, nil},
+			{`(true|false|null|NaN|Infinity|-Infinity|undefined|void)\b`, KeywordConstant, nil},
+			{`(decodeURI|decodeURIComponent|encodeURI|escape|eval|isFinite|isNaN|isXMLName|clearInterval|fscommand|getTimer|getURL|getVersion|isFinite|parseFloat|parseInt|setInterval|trace|updateAfterEvent|unescape)\b`, NameFunction, nil},
+			{`[$a-zA-Z_]\w*`, Name, nil},
+			{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
+			{`0x[0-9a-f]+`, LiteralNumberHex, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`"(\\\\|\\"|[^"])*"`, LiteralStringDouble, nil},
+			{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
+			{`[~^*!%&<>|+=:;,/?\\{}\[\]().-]+`, Operator, nil},
+		},
+		"funcparams": {
+			{`\s+`, Text, nil},
+			{`(\s*)(\.\.\.)?([$a-zA-Z_]\w*)(\s*)(:)(\s*)([$a-zA-Z_]\w*(?:\.<\w+>)?|\*)(\s*)`, ByGroups(Text, Punctuation, Name, Text, Operator, Text, KeywordType, Text), Push("defval")},
+			{`\)`, Operator, Push("type")},
+		},
+		"type": {
+			{`(\s*)(:)(\s*)([$a-zA-Z_]\w*(?:\.<\w+>)?|\*)`, ByGroups(Text, Operator, Text, KeywordType), Pop(2)},
+			{`\s+`, Text, Pop(2)},
+			Default(Pop(2)),
+		},
+		"defval": {
+			{`(=)(\s*)([^(),]+)(\s*)(,?)`, ByGroups(Operator, Text, UsingSelf("root"), Text, Operator), Pop(1)},
+			{`,`, Operator, Pop(1)},
+			Default(Pop(1)),
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/ada.go

@@ -0,0 +1,114 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Ada lexer.
+var Ada = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "Ada",
+		Aliases:         []string{"ada", "ada95", "ada2005"},
+		Filenames:       []string{"*.adb", "*.ads", "*.ada"},
+		MimeTypes:       []string{"text/x-ada"},
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			{`[^\S\n]+`, Text, nil},
+			{`--.*?\n`, CommentSingle, nil},
+			{`[^\S\n]+`, Text, nil},
+			{`function|procedure|entry`, KeywordDeclaration, Push("subprogram")},
+			{`(subtype|type)(\s+)(\w+)`, ByGroups(KeywordDeclaration, Text, KeywordType), Push("type_def")},
+			{`task|protected`, KeywordDeclaration, nil},
+			{`(subtype)(\s+)`, ByGroups(KeywordDeclaration, Text), nil},
+			{`(end)(\s+)`, ByGroups(KeywordReserved, Text), Push("end")},
+			{`(pragma)(\s+)(\w+)`, ByGroups(KeywordReserved, Text, CommentPreproc), nil},
+			{`(true|false|null)\b`, KeywordConstant, nil},
+			{Words(``, `\b`, `Address`, `Byte`, `Boolean`, `Character`, `Controlled`, `Count`, `Cursor`, `Duration`, `File_Mode`, `File_Type`, `Float`, `Generator`, `Integer`, `Long_Float`, `Long_Integer`, `Long_Long_Float`, `Long_Long_Integer`, `Natural`, `Positive`, `Reference_Type`, `Short_Float`, `Short_Integer`, `Short_Short_Float`, `Short_Short_Integer`, `String`, `Wide_Character`, `Wide_String`), KeywordType, nil},
+			{`(and(\s+then)?|in|mod|not|or(\s+else)|rem)\b`, OperatorWord, nil},
+			{`generic|private`, KeywordDeclaration, nil},
+			{`package`, KeywordDeclaration, Push("package")},
+			{`array\b`, KeywordReserved, Push("array_def")},
+			{`(with|use)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
+			{`(\w+)(\s*)(:)(\s*)(constant)`, ByGroups(NameConstant, Text, Punctuation, Text, KeywordReserved), nil},
+			{`<<\w+>>`, NameLabel, nil},
+			{`(\w+)(\s*)(:)(\s*)(declare|begin|loop|for|while)`, ByGroups(NameLabel, Text, Punctuation, Text, KeywordReserved), nil},
+			{Words(`\b`, `\b`, `abort`, `abs`, `abstract`, `accept`, `access`, `aliased`, `all`, `array`, `at`, `begin`, `body`, `case`, `constant`, `declare`, `delay`, `delta`, `digits`, `do`, `else`, `elsif`, `end`, `entry`, `exception`, `exit`, `interface`, `for`, `goto`, `if`, `is`, `limited`, `loop`, `new`, `null`, `of`, `or`, `others`, `out`, `overriding`, `pragma`, `protected`, `raise`, `range`, `record`, `renames`, `requeue`, `return`, `reverse`, `select`, `separate`, `subtype`, `synchronized`, `task`, `tagged`, `terminate`, `then`, `type`, `until`, `when`, `while`, `xor`), KeywordReserved, nil},
+			{`"[^"]*"`, LiteralString, nil},
+			Include("attribute"),
+			Include("numbers"),
+			{`'[^']'`, LiteralStringChar, nil},
+			{`(\w+)(\s*|[(,])`, ByGroups(Name, UsingSelf("root")), nil},
+			{`(<>|=>|:=|[()|:;,.'])`, Punctuation, nil},
+			{`[*<>+=/&-]`, Operator, nil},
+			{`\n+`, Text, nil},
+		},
+		"numbers": {
+			{`[0-9_]+#[0-9a-f]+#`, LiteralNumberHex, nil},
+			{`[0-9_]+\.[0-9_]*`, LiteralNumberFloat, nil},
+			{`[0-9_]+`, LiteralNumberInteger, nil},
+		},
+		"attribute": {
+			{`(')(\w+)`, ByGroups(Punctuation, NameAttribute), nil},
+		},
+		"subprogram": {
+			{`\(`, Punctuation, Push("#pop", "formal_part")},
+			{`;`, Punctuation, Pop(1)},
+			{`is\b`, KeywordReserved, Pop(1)},
+			{`"[^"]+"|\w+`, NameFunction, nil},
+			Include("root"),
+		},
+		"end": {
+			{`(if|case|record|loop|select)`, KeywordReserved, nil},
+			{`"[^"]+"|[\w.]+`, NameFunction, nil},
+			{`\s+`, Text, nil},
+			{`;`, Punctuation, Pop(1)},
+		},
+		"type_def": {
+			{`;`, Punctuation, Pop(1)},
+			{`\(`, Punctuation, Push("formal_part")},
+			{`with|and|use`, KeywordReserved, nil},
+			{`array\b`, KeywordReserved, Push("#pop", "array_def")},
+			{`record\b`, KeywordReserved, Push("record_def")},
+			{`(null record)(;)`, ByGroups(KeywordReserved, Punctuation), Pop(1)},
+			Include("root"),
+		},
+		"array_def": {
+			{`;`, Punctuation, Pop(1)},
+			{`(\w+)(\s+)(range)`, ByGroups(KeywordType, Text, KeywordReserved), nil},
+			Include("root"),
+		},
+		"record_def": {
+			{`end record`, KeywordReserved, Pop(1)},
+			Include("root"),
+		},
+		"import": {
+			{`[\w.]+`, NameNamespace, Pop(1)},
+			Default(Pop(1)),
+		},
+		"formal_part": {
+			{`\)`, Punctuation, Pop(1)},
+			{`\w+`, NameVariable, nil},
+			{`,|:[^=]`, Punctuation, nil},
+			{`(in|not|null|out|access)\b`, KeywordReserved, nil},
+			Include("root"),
+		},
+		"package": {
+			{`body`, KeywordDeclaration, nil},
+			{`is\s+new|renames`, KeywordReserved, nil},
+			{`is`, KeywordReserved, Pop(1)},
+			{`;`, Punctuation, Pop(1)},
+			{`\(`, Punctuation, Push("package_instantiation")},
+			{`([\w.]+)`, NameClass, nil},
+			Include("root"),
+		},
+		"package_instantiation": {
+			{`("[^"]+"|\w+)(\s+)(=>)`, ByGroups(NameVariable, Text, Punctuation), nil},
+			{`[\w.\'"]`, Text, nil},
+			{`\)`, Punctuation, Pop(1)},
+			Include("root"),
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/angular2.go

@@ -0,0 +1,42 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Angular2 lexer.
+var Angular2 = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Angular2",
+		Aliases:   []string{"ng2"},
+		Filenames: []string{},
+		MimeTypes: []string{},
+	},
+	Rules{
+		"root": {
+			{`[^{([*#]+`, Other, nil},
+			{`(\{\{)(\s*)`, ByGroups(CommentPreproc, Text), Push("ngExpression")},
+			{`([([]+)([\w:.-]+)([\])]+)(\s*)(=)(\s*)`, ByGroups(Punctuation, NameAttribute, Punctuation, Text, Operator, Text), Push("attr")},
+			{`([([]+)([\w:.-]+)([\])]+)(\s*)`, ByGroups(Punctuation, NameAttribute, Punctuation, Text), nil},
+			{`([*#])([\w:.-]+)(\s*)(=)(\s*)`, ByGroups(Punctuation, NameAttribute, Punctuation, Operator), Push("attr")},
+			{`([*#])([\w:.-]+)(\s*)`, ByGroups(Punctuation, NameAttribute, Punctuation), nil},
+		},
+		"ngExpression": {
+			{`\s+(\|\s+)?`, Text, nil},
+			{`\}\}`, CommentPreproc, Pop(1)},
+			{`:?(true|false)`, LiteralStringBoolean, nil},
+			{`:?"(\\\\|\\"|[^"])*"`, LiteralStringDouble, nil},
+			{`:?'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
+			{`[0-9](\.[0-9]*)?(eE[+-][0-9])?[flFLdD]?|0[xX][0-9a-fA-F]+[Ll]?`, LiteralNumber, nil},
+			{`[a-zA-Z][\w-]*(\(.*\))?`, NameVariable, nil},
+			{`\.[\w-]+(\(.*\))?`, NameVariable, nil},
+			{`(\?)(\s*)([^}\s]+)(\s*)(:)(\s*)([^}\s]+)(\s*)`, ByGroups(Operator, Text, LiteralString, Text, Operator, Text, LiteralString, Text), nil},
+		},
+		"attr": {
+			{`".*?"`, LiteralString, Pop(1)},
+			{`'.*?'`, LiteralString, Pop(1)},
+			{`[^\s>]+`, LiteralString, Pop(1)},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/antlr.go

@@ -0,0 +1,101 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// ANTLR lexer.
+var ANTLR = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "ANTLR",
+		Aliases:   []string{"antlr"},
+		Filenames: []string{},
+		MimeTypes: []string{},
+	},
+	Rules{
+		"whitespace": {
+			{`\s+`, TextWhitespace, nil},
+		},
+		"comments": {
+			{`//.*$`, Comment, nil},
+			{`/\*(.|\n)*?\*/`, Comment, nil},
+		},
+		"root": {
+			Include("whitespace"),
+			Include("comments"),
+			{`(lexer|parser|tree)?(\s*)(grammar\b)(\s*)([A-Za-z]\w*)(;)`, ByGroups(Keyword, TextWhitespace, Keyword, TextWhitespace, NameClass, Punctuation), nil},
+			{`options\b`, Keyword, Push("options")},
+			{`tokens\b`, Keyword, Push("tokens")},
+			{`(scope)(\s*)([A-Za-z]\w*)(\s*)(\{)`, ByGroups(Keyword, TextWhitespace, NameVariable, TextWhitespace, Punctuation), Push("action")},
+			{`(catch|finally)\b`, Keyword, Push("exception")},
+			{`(@[A-Za-z]\w*)(\s*)(::)?(\s*)([A-Za-z]\w*)(\s*)(\{)`, ByGroups(NameLabel, TextWhitespace, Punctuation, TextWhitespace, NameLabel, TextWhitespace, Punctuation), Push("action")},
+			{`((?:protected|private|public|fragment)\b)?(\s*)([A-Za-z]\w*)(!)?`, ByGroups(Keyword, TextWhitespace, NameLabel, Punctuation), Push("rule-alts", "rule-prelims")},
+		},
+		"exception": {
+			{`\n`, TextWhitespace, Pop(1)},
+			{`\s`, TextWhitespace, nil},
+			Include("comments"),
+			{`\[`, Punctuation, Push("nested-arg-action")},
+			{`\{`, Punctuation, Push("action")},
+		},
+		"rule-prelims": {
+			Include("whitespace"),
+			Include("comments"),
+			{`returns\b`, Keyword, nil},
+			{`\[`, Punctuation, Push("nested-arg-action")},
+			{`\{`, Punctuation, Push("action")},
+			{`(throws)(\s+)([A-Za-z]\w*)`, ByGroups(Keyword, TextWhitespace, NameLabel), nil},
+			{`(,)(\s*)([A-Za-z]\w*)`, ByGroups(Punctuation, TextWhitespace, NameLabel), nil},
+			{`options\b`, Keyword, Push("options")},
+			{`(scope)(\s+)(\{)`, ByGroups(Keyword, TextWhitespace, Punctuation), Push("action")},
+			{`(scope)(\s+)([A-Za-z]\w*)(\s*)(;)`, ByGroups(Keyword, TextWhitespace, NameLabel, TextWhitespace, Punctuation), nil},
+			{`(@[A-Za-z]\w*)(\s*)(\{)`, ByGroups(NameLabel, TextWhitespace, Punctuation), Push("action")},
+			{`:`, Punctuation, Pop(1)},
+		},
+		"rule-alts": {
+			Include("whitespace"),
+			Include("comments"),
+			{`options\b`, Keyword, Push("options")},
+			{`:`, Punctuation, nil},
+			{`'(\\\\|\\'|[^'])*'`, LiteralString, nil},
+			{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
+			{`<<([^>]|>[^>])>>`, LiteralString, nil},
+			{`\$?[A-Z_]\w*`, NameConstant, nil},
+			{`\$?[a-z_]\w*`, NameVariable, nil},
+			{`(\+|\||->|=>|=|\(|\)|\.\.|\.|\?|\*|\^|!|\#|~)`, Operator, nil},
+			{`,`, Punctuation, nil},
+			{`\[`, Punctuation, Push("nested-arg-action")},
+			{`\{`, Punctuation, Push("action")},
+			{`;`, Punctuation, Pop(1)},
+		},
+		"tokens": {
+			Include("whitespace"),
+			Include("comments"),
+			{`\{`, Punctuation, nil},
+			{`([A-Z]\w*)(\s*)(=)?(\s*)(\'(?:\\\\|\\\'|[^\']*)\')?(\s*)(;)`, ByGroups(NameLabel, TextWhitespace, Punctuation, TextWhitespace, LiteralString, TextWhitespace, Punctuation), nil},
+			{`\}`, Punctuation, Pop(1)},
+		},
+		"options": {
+			Include("whitespace"),
+			Include("comments"),
+			{`\{`, Punctuation, nil},
+			{`([A-Za-z]\w*)(\s*)(=)(\s*)([A-Za-z]\w*|\'(?:\\\\|\\\'|[^\']*)\'|[0-9]+|\*)(\s*)(;)`, ByGroups(NameVariable, TextWhitespace, Punctuation, TextWhitespace, Text, TextWhitespace, Punctuation), nil},
+			{`\}`, Punctuation, Pop(1)},
+		},
+		"action": {
+			{`([^${}\'"/\\]+|"(\\\\|\\"|[^"])*"|'(\\\\|\\'|[^'])*'|//.*$\n?|/\*(.|\n)*?\*/|/(?!\*)(\\\\|\\/|[^/])*/|\\(?!%)|/)+`, Other, nil},
+			{`(\\)(%)`, ByGroups(Punctuation, Other), nil},
+			{`(\$[a-zA-Z]+)(\.?)(text|value)?`, ByGroups(NameVariable, Punctuation, NameProperty), nil},
+			{`\{`, Punctuation, Push()},
+			{`\}`, Punctuation, Pop(1)},
+		},
+		"nested-arg-action": {
+			{`([^$\[\]\'"/]+|"(\\\\|\\"|[^"])*"|'(\\\\|\\'|[^'])*'|//.*$\n?|/\*(.|\n)*?\*/|/(?!\*)(\\\\|\\/|[^/])*/|/)+`, Other, nil},
+			{`\[`, Punctuation, Push()},
+			{`\]`, Punctuation, Pop(1)},
+			{`(\$[a-zA-Z]+)(\.?)(text|value)?`, ByGroups(NameVariable, Punctuation, NameProperty), nil},
+			{`(\\\\|\\\]|\\\[|[^\[\]])+`, Other, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/apache.go

@@ -0,0 +1,38 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Apacheconf lexer.
+var Apacheconf = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "ApacheConf",
+		Aliases:         []string{"apacheconf", "aconf", "apache"},
+		Filenames:       []string{".htaccess", "apache.conf", "apache2.conf"},
+		MimeTypes:       []string{"text/x-apacheconf"},
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			{`\s+`, Text, nil},
+			{`(#.*?)$`, Comment, nil},
+			{`(<[^\s>]+)(?:(\s+)(.*?))?(>)`, ByGroups(NameTag, Text, LiteralString, NameTag), nil},
+			{`([a-z]\w*)(\s+)`, ByGroups(NameBuiltin, Text), Push("value")},
+			{`\.+`, Text, nil},
+		},
+		"value": {
+			{`\\\n`, Text, nil},
+			{`$`, Text, Pop(1)},
+			{`\\`, Text, nil},
+			{`[^\S\n]+`, Text, nil},
+			{`\d+\.\d+\.\d+\.\d+(?:/\d+)?`, LiteralNumber, nil},
+			{`\d+`, LiteralNumber, nil},
+			{`/([a-z0-9][\w./-]+)`, LiteralStringOther, nil},
+			{`(on|off|none|any|all|double|email|dns|min|minimal|os|productonly|full|emerg|alert|crit|error|warn|notice|info|debug|registry|script|inetd|standalone|user|group)\b`, Keyword, nil},
+			{`"([^"\\]*(?:\\.[^"\\]*)*)"`, LiteralStringDouble, nil},
+			{`[^\s"\\]+`, Text, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/apl.go

@@ -0,0 +1,36 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Apl lexer.
+var Apl = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "APL",
+		Aliases:   []string{"apl"},
+		Filenames: []string{"*.apl"},
+		MimeTypes: []string{},
+	},
+	Rules{
+		"root": {
+			{`\s+`, Text, nil},
+			{`[⍝#].*$`, CommentSingle, nil},
+			{`\'((\'\')|[^\'])*\'`, LiteralStringSingle, nil},
+			{`"(("")|[^"])*"`, LiteralStringDouble, nil},
+			{`[⋄◇()]`, Punctuation, nil},
+			{`[\[\];]`, LiteralStringRegex, nil},
+			{`⎕[A-Za-zΔ∆⍙][A-Za-zΔ∆⍙_¯0-9]*`, NameFunction, nil},
+			{`[A-Za-zΔ∆⍙][A-Za-zΔ∆⍙_¯0-9]*`, NameVariable, nil},
+			{`¯?(0[Xx][0-9A-Fa-f]+|[0-9]*\.?[0-9]+([Ee][+¯]?[0-9]+)?|¯|∞)([Jj]¯?(0[Xx][0-9A-Fa-f]+|[0-9]*\.?[0-9]+([Ee][+¯]?[0-9]+)?|¯|∞))?`, LiteralNumber, nil},
+			{`[\.\\/⌿⍀¨⍣⍨⍠⍤∘]`, NameAttribute, nil},
+			{`[+\-×÷⌈⌊∣|⍳?*⍟○!⌹<≤=>≥≠≡≢∊⍷∪∩~∨∧⍱⍲⍴,⍪⌽⊖⍉↑↓⊂⊃⌷⍋⍒⊤⊥⍕⍎⊣⊢⍁⍂≈⌸⍯↗]`, Operator, nil},
+			{`⍬`, NameConstant, nil},
+			{`[⎕⍞]`, NameVariableGlobal, nil},
+			{`[←→]`, KeywordDeclaration, nil},
+			{`[⍺⍵⍶⍹∇:]`, NameBuiltinPseudo, nil},
+			{`[{}]`, KeywordType, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/applescript.go

@@ -0,0 +1,55 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Applescript lexer.
+var Applescript = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "AppleScript",
+		Aliases:   []string{"applescript"},
+		Filenames: []string{"*.applescript"},
+		MimeTypes: []string{},
+		DotAll:    true,
+	},
+	Rules{
+		"root": {
+			{`\s+`, Text, nil},
+			{`¬\n`, LiteralStringEscape, nil},
+			{`'s\s+`, Text, nil},
+			{`(--|#).*?$`, Comment, nil},
+			{`\(\*`, CommentMultiline, Push("comment")},
+			{`[(){}!,.:]`, Punctuation, nil},
+			{`(«)([^»]+)(»)`, ByGroups(Text, NameBuiltin, Text), nil},
+			{`\b((?:considering|ignoring)\s*)(application responses|case|diacriticals|hyphens|numeric strings|punctuation|white space)`, ByGroups(Keyword, NameBuiltin), nil},
+			{`(-|\*|\+|&|≠|>=?|<=?|=|≥|≤|/|÷|\^)`, Operator, nil},
+			{`\b(and|or|is equal|equals|(is )?equal to|is not|isn't|isn't equal( to)?|is not equal( to)?|doesn't equal|does not equal|(is )?greater than|comes after|is not less than or equal( to)?|isn't less than or equal( to)?|(is )?less than|comes before|is not greater than or equal( to)?|isn't greater than or equal( to)?|(is  )?greater than or equal( to)?|is not less than|isn't less than|does not come before|doesn't come before|(is )?less than or equal( to)?|is not greater than|isn't greater than|does not come after|doesn't come after|starts? with|begins? with|ends? with|contains?|does not contain|doesn't contain|is in|is contained by|is not in|is not contained by|isn't contained by|div|mod|not|(a  )?(ref( to)?|reference to)|is|does)\b`, OperatorWord, nil},
+			{`^(\s*(?:on|end)\s+)(zoomed|write to file|will zoom|will show|will select tab view item|will resize( sub views)?|will resign active|will quit|will pop up|will open|will move|will miniaturize|will hide|will finish launching|will display outline cell|will display item cell|will display cell|will display browser cell|will dismiss|will close|will become active|was miniaturized|was hidden|update toolbar item|update parameters|update menu item|shown|should zoom|should selection change|should select tab view item|should select row|should select item|should select column|should quit( after last window closed)?|should open( untitled)?|should expand item|should end editing|should collapse item|should close|should begin editing|selection changing|selection changed|selected tab view item|scroll wheel|rows changed|right mouse up|right mouse dragged|right mouse down|resized( sub views)?|resigned main|resigned key|resigned active|read from file|prepare table drop|prepare table drag|prepare outline drop|prepare outline drag|prepare drop|plugin loaded|parameters updated|panel ended|opened|open untitled|number of rows|number of items|number of browser rows|moved|mouse up|mouse moved|mouse exited|mouse entered|mouse dragged|mouse down|miniaturized|load data representation|launched|keyboard up|keyboard down|items changed|item value changed|item value|item expandable|idle|exposed|end editing|drop|drag( (entered|exited|updated))?|double clicked|document nib name|dialog ended|deminiaturized|data representation|conclude drop|column resized|column moved|column clicked|closed|clicked toolbar item|clicked|choose menu item|child of item|changed|change item value|change cell value|cell value changed|cell value|bounds changed|begin editing|became main|became key|awake from nib|alert ended|activated|action|accept table drop|accept outline drop)`, ByGroups(Keyword, NameFunction), nil},
+			{`^(\s*)(in|on|script|to)(\s+)`, ByGroups(Text, Keyword, Text), nil},
+			{`\b(as )(alias |application |boolean |class |constant |date |file |integer |list |number |POSIX file |real |record |reference |RGB color |script |text |unit types|(?:Unicode )?text|string)\b`, ByGroups(Keyword, NameClass), nil},
+			{`\b(AppleScript|current application|false|linefeed|missing value|pi|quote|result|return|space|tab|text item delimiters|true|version)\b`, NameConstant, nil},
+			{`\b(ASCII (character|number)|activate|beep|choose URL|choose application|choose color|choose file( name)?|choose folder|choose from list|choose remote application|clipboard info|close( access)?|copy|count|current date|delay|delete|display (alert|dialog)|do shell script|duplicate|exists|get eof|get volume settings|info for|launch|list (disks|folder)|load script|log|make|mount volume|new|offset|open( (for access|location))?|path to|print|quit|random number|read|round|run( script)?|say|scripting components|set (eof|the clipboard to|volume)|store script|summarize|system attribute|system info|the clipboard|time to GMT|write|quoted form)\b`, NameBuiltin, nil},
+			{`\b(considering|else|error|exit|from|if|ignoring|in|repeat|tell|then|times|to|try|until|using terms from|while|with|with timeout( of)?|with transaction|by|continue|end|its?|me|my|return|of|as)\b`, Keyword, nil},
+			{`\b(global|local|prop(erty)?|set|get)\b`, Keyword, nil},
+			{`\b(but|put|returning|the)\b`, NameBuiltin, nil},
+			{`\b(attachment|attribute run|character|day|month|paragraph|word|year)s?\b`, NameBuiltin, nil},
+			{`\b(about|above|against|apart from|around|aside from|at|below|beneath|beside|between|for|given|instead of|on|onto|out of|over|since)\b`, NameBuiltin, nil},
+			{`\b(accepts arrow key|action method|active|alignment|allowed identifiers|allows branch selection|allows column reordering|allows column resizing|allows column selection|allows customization|allows editing text attributes|allows empty selection|allows mixed state|allows multiple selection|allows reordering|allows undo|alpha( value)?|alternate image|alternate increment value|alternate title|animation delay|associated file name|associated object|auto completes|auto display|auto enables items|auto repeat|auto resizes( outline column)?|auto save expanded items|auto save name|auto save table columns|auto saves configuration|auto scroll|auto sizes all columns to fit|auto sizes cells|background color|bezel state|bezel style|bezeled|border rect|border type|bordered|bounds( rotation)?|box type|button returned|button type|can choose directories|can choose files|can draw|can hide|cell( (background color|size|type))?|characters|class|click count|clicked( data)? column|clicked data item|clicked( data)? row|closeable|collating|color( (mode|panel))|command key down|configuration|content(s| (size|view( margins)?))?|context|continuous|control key down|control size|control tint|control view|controller visible|coordinate system|copies( on scroll)?|corner view|current cell|current column|current( field)?  editor|current( menu)? item|current row|current tab view item|data source|default identifiers|delta (x|y|z)|destination window|directory|display mode|displayed cell|document( (edited|rect|view))?|double value|dragged column|dragged distance|dragged items|draws( cell)? background|draws grid|dynamically scrolls|echos bullets|edge|editable|edited( data)? column|edited data item|edited( data)? row|enabled|enclosing scroll view|ending page|error handling|event number|event type|excluded from windows menu|executable path|expanded|fax number|field editor|file kind|file name|file type|first responder|first visible column|flipped|floating|font( panel)?|formatter|frameworks path|frontmost|gave up|grid color|has data items|has horizontal ruler|has horizontal scroller|has parent data item|has resize indicator|has shadow|has sub menu|has vertical ruler|has vertical scroller|header cell|header view|hidden|hides when deactivated|highlights by|horizontal line scroll|horizontal page scroll|horizontal ruler view|horizontally resizable|icon image|id|identifier|ignores multiple clicks|image( (alignment|dims when disabled|frame style|scaling))?|imports graphics|increment value|indentation per level|indeterminate|index|integer value|intercell spacing|item height|key( (code|equivalent( modifier)?|window))?|knob thickness|label|last( visible)? column|leading offset|leaf|level|line scroll|loaded|localized sort|location|loop mode|main( (bunde|menu|window))?|marker follows cell|matrix mode|maximum( content)? size|maximum visible columns|menu( form representation)?|miniaturizable|miniaturized|minimized image|minimized title|minimum column width|minimum( content)? size|modal|modified|mouse down state|movie( (controller|file|rect))?|muted|name|needs display|next state|next text|number of tick marks|only tick mark values|opaque|open panel|option key down|outline table column|page scroll|pages across|pages down|palette label|pane splitter|parent data item|parent window|pasteboard|path( (names|separator))?|playing|plays every frame|plays selection only|position|preferred edge|preferred type|pressure|previous text|prompt|properties|prototype cell|pulls down|rate|released when closed|repeated|requested print time|required file type|resizable|resized column|resource path|returns records|reuses columns|rich text|roll over|row height|rulers visible|save panel|scripts path|scrollable|selectable( identifiers)?|selected cell|selected( data)? columns?|selected data items?|selected( data)? rows?|selected item identifier|selection by rect|send action on arrow key|sends action when done editing|separates columns|separator item|sequence number|services menu|shared frameworks path|shared support path|sheet|shift key down|shows alpha|shows state by|size( mode)?|smart insert delete enabled|sort case sensitivity|sort column|sort order|sort type|sorted( data rows)?|sound|source( mask)?|spell checking enabled|starting page|state|string value|sub menu|super menu|super view|tab key traverses cells|tab state|tab type|tab view|table view|tag|target( printer)?|text color|text container insert|text container origin|text returned|tick mark position|time stamp|title(d| (cell|font|height|position|rect))?|tool tip|toolbar|trailing offset|transparent|treat packages as directories|truncated labels|types|unmodified characters|update views|use sort indicator|user defaults|uses data source|uses ruler|uses threaded animation|uses title from previous column|value wraps|version|vertical( (line scroll|page scroll|ruler view))?|vertically resizable|view|visible( document rect)?|volume|width|window|windows menu|wraps|zoomable|zoomed)\b`, NameAttribute, nil},
+			{`\b(action cell|alert reply|application|box|browser( cell)?|bundle|button( cell)?|cell|clip view|color well|color-panel|combo box( item)?|control|data( (cell|column|item|row|source))?|default entry|dialog reply|document|drag info|drawer|event|font(-panel)?|formatter|image( (cell|view))?|matrix|menu( item)?|item|movie( view)?|open-panel|outline view|panel|pasteboard|plugin|popup button|progress indicator|responder|save-panel|scroll view|secure text field( cell)?|slider|sound|split view|stepper|tab view( item)?|table( (column|header cell|header view|view))|text( (field( cell)?|view))?|toolbar( item)?|user-defaults|view|window)s?\b`, NameBuiltin, nil},
+			{`\b(animate|append|call method|center|close drawer|close panel|display|display alert|display dialog|display panel|go|hide|highlight|increment|item for|load image|load movie|load nib|load panel|load sound|localized string|lock focus|log|open drawer|path for|pause|perform action|play|register|resume|scroll|select( all)?|show|size to fit|start|step back|step forward|stop|synchronize|unlock focus|update)\b`, NameBuiltin, nil},
+			{`\b((in )?back of|(in )?front of|[0-9]+(st|nd|rd|th)|first|second|third|fourth|fifth|sixth|seventh|eighth|ninth|tenth|after|back|before|behind|every|front|index|last|middle|some|that|through|thru|where|whose)\b`, NameBuiltin, nil},
+			{`"(\\\\|\\"|[^"])*"`, LiteralStringDouble, nil},
+			{`\b([a-zA-Z]\w*)\b`, NameVariable, nil},
+			{`[-+]?(\d+\.\d*|\d*\.\d+)(E[-+][0-9]+)?`, LiteralNumberFloat, nil},
+			{`[-+]?\d+`, LiteralNumberInteger, nil},
+		},
+		"comment": {
+			{`\(\*`, CommentMultiline, Push()},
+			{`\*\)`, CommentMultiline, Pop(1)},
+			{`[^*(]+`, CommentMultiline, nil},
+			{`[*(]`, CommentMultiline, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/arduino.go

@@ -0,0 +1,110 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Arduino lexer.
+var Arduino = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Arduino",
+		Aliases:   []string{"arduino"},
+		Filenames: []string{"*.ino"},
+		MimeTypes: []string{"text/x-arduino"},
+		EnsureNL:  true,
+	},
+	Rules{
+		"statements": {
+			{Words(``, `\b`, `catch`, `const_cast`, `delete`, `dynamic_cast`, `explicit`, `export`, `friend`, `mutable`, `namespace`, `new`, `operator`, `private`, `protected`, `public`, `reinterpret_cast`, `restrict`, `static_cast`, `template`, `this`, `throw`, `throws`, `try`, `typeid`, `typename`, `using`, `virtual`, `constexpr`, `nullptr`, `decltype`, `thread_local`, `alignas`, `alignof`, `static_assert`, `noexcept`, `override`, `final`), Keyword, nil},
+			{`char(16_t|32_t)\b`, KeywordType, nil},
+			{`(class)\b`, ByGroups(Keyword, Text), Push("classname")},
+			{`(R)(")([^\\()\s]{,16})(\()((?:.|\n)*?)(\)\3)(")`, ByGroups(LiteralStringAffix, LiteralString, LiteralStringDelimiter, LiteralStringDelimiter, LiteralString, LiteralStringDelimiter, LiteralString), nil},
+			{`(u8|u|U)(")`, ByGroups(LiteralStringAffix, LiteralString), Push("string")},
+			{`(L?)(")`, ByGroups(LiteralStringAffix, LiteralString), Push("string")},
+			{`(L?)(')(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])(')`, ByGroups(LiteralStringAffix, LiteralStringChar, LiteralStringChar, LiteralStringChar), nil},
+			{`(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*`, LiteralNumberFloat, nil},
+			{`(\d+\.\d*|\.\d+|\d+[fF])[fF]?`, LiteralNumberFloat, nil},
+			{`0x[0-9a-fA-F]+[LlUu]*`, LiteralNumberHex, nil},
+			{`0[0-7]+[LlUu]*`, LiteralNumberOct, nil},
+			{`\d+[LlUu]*`, LiteralNumberInteger, nil},
+			{`\*/`, Error, nil},
+			{`[~!%^&*+=|?:<>/-]`, Operator, nil},
+			{`[()\[\],.]`, Punctuation, nil},
+			{Words(``, `\b`, `asm`, `auto`, `break`, `case`, `const`, `continue`, `default`, `do`, `else`, `enum`, `extern`, `for`, `goto`, `if`, `register`, `restricted`, `return`, `sizeof`, `static`, `struct`, `switch`, `typedef`, `union`, `volatile`, `while`), Keyword, nil},
+			{`(_Bool|_Complex|_Imaginary|array|atomic_bool|atomic_char|atomic_int|atomic_llong|atomic_long|atomic_schar|atomic_short|atomic_uchar|atomic_uint|atomic_ullong|atomic_ulong|atomic_ushort|auto|bool|boolean|BooleanVariables|Byte|byte|Char|char|char16_t|char32_t|class|complex|Const|const|const_cast|delete|double|dynamic_cast|enum|explicit|extern|Float|float|friend|inline|Int|int|int16_t|int32_t|int64_t|int8_t|Long|long|new|NULL|null|operator|private|PROGMEM|protected|public|register|reinterpret_cast|short|signed|sizeof|Static|static|static_cast|String|struct|typedef|uint16_t|uint32_t|uint64_t|uint8_t|union|unsigned|virtual|Void|void|Volatile|volatile|word)\b`, KeywordType, nil},
+			// Start of: Arduino-specific syntax
+			{`(and|final|If|Loop|loop|not|or|override|setup|Setup|throw|try|xor)\b`, Keyword, nil}, // Addition to keywords already defined by C++
+			{`(ANALOG_MESSAGE|BIN|CHANGE|DEC|DEFAULT|DIGITAL_MESSAGE|EXTERNAL|FALLING|FIRMATA_STRING|HALF_PI|HEX|HIGH|INPUT|INPUT_PULLUP|INTERNAL|INTERNAL1V1|INTERNAL1V1|INTERNAL2V56|INTERNAL2V56|LED_BUILTIN|LED_BUILTIN_RX|LED_BUILTIN_TX|LOW|LSBFIRST|MSBFIRST|OCT|OUTPUT|PI|REPORT_ANALOG|REPORT_DIGITAL|RISING|SET_PIN_MODE|SYSEX_START|SYSTEM_RESET|TWO_PI)\b`, KeywordConstant, nil},
+			{`(boolean|const|byte|word|string|String|array)\b`, NameVariable, nil},
+			{`(Keyboard|KeyboardController|MouseController|SoftwareSerial|EthernetServer|EthernetClient|LiquidCrystal|RobotControl|GSMVoiceCall|EthernetUDP|EsploraTFT|HttpClient|RobotMotor|WiFiClient|GSMScanner|FileSystem|Scheduler|GSMServer|YunClient|YunServer|IPAddress|GSMClient|GSMModem|Keyboard|Ethernet|Console|GSMBand|Esplora|Stepper|Process|WiFiUDP|GSM_SMS|Mailbox|USBHost|Firmata|PImage|Client|Server|GSMPIN|FileIO|Bridge|Serial|EEPROM|Stream|Mouse|Audio|Servo|File|Task|GPRS|WiFi|Wire|TFT|GSM|SPI|SD)\b`, NameClass, nil},
+			{`(abs|Abs|accept|ACos|acos|acosf|addParameter|analogRead|AnalogRead|analogReadResolution|AnalogReadResolution|analogReference|AnalogReference|analogWrite|AnalogWrite|analogWriteResolution|AnalogWriteResolution|answerCall|asin|ASin|asinf|atan|ATan|atan2|ATan2|atan2f|atanf|attach|attached|attachGPRS|attachInterrupt|AttachInterrupt|autoscroll|available|availableForWrite|background|beep|begin|beginPacket|beginSD|beginSMS|beginSpeaker|beginTFT|beginTransmission|beginWrite|bit|Bit|BitClear|bitClear|bitRead|BitRead|bitSet|BitSet|BitWrite|bitWrite|blink|blinkVersion|BSSID|buffer|byte|cbrt|cbrtf|Ceil|ceil|ceilf|changePIN|char|charAt|checkPIN|checkPUK|checkReg|circle|cityNameRead|cityNameWrite|clear|clearScreen|click|close|compareTo|compassRead|concat|config|connect|connected|constrain|Constrain|copysign|copysignf|cos|Cos|cosf|cosh|coshf|countryNameRead|countryNameWrite|createChar|cursor|debugPrint|degrees|Delay|delay|DelayMicroseconds|delayMicroseconds|detach|DetachInterrupt|detachInterrupt|DigitalPinToInterrupt|digitalPinToInterrupt|DigitalRead|digitalRead|DigitalWrite|digitalWrite|disconnect|display|displayLogos|drawBMP|drawCompass|encryptionType|end|endPacket|endSMS|endsWith|endTransmission|endWrite|equals|equalsIgnoreCase|exists|exitValue|Exp|exp|expf|fabs|fabsf|fdim|fdimf|fill|find|findUntil|float|floor|Floor|floorf|flush|fma|fmaf|fmax|fmaxf|fmin|fminf|fmod|fmodf|gatewayIP|get|getAsynchronously|getBand|getButton|getBytes|getCurrentCarrier|getIMEI|getKey|getModifiers|getOemKey|getPINUsed|getResult|getSignalStrength|getSocket|getVoiceCallStatus|getXChange|getYChange|hangCall|height|highByte|HighByte|home|hypot|hypotf|image|indexOf|int|interrupts|IPAddress|IRread|isActionDone|isAlpha|isAlphaNumeric|isAscii|isControl|isDigit|isDirectory|isfinite|isGraph|isHexadecimalDigit|isinf|isListening|isLowerCase|isnan|isPIN|isPressed|isPrintable|isPunct|isSpace|isUpperCase|isValid|isWhitespace|keyboardRead|keyPressed|keyReleased|knobRead|lastIndexOf|ldexp|ldexpf|leftToRight|length|line|lineFollowConfig|listen|listenOnLocalhost|loadImage|localIP|log|Log|log10|log10f|logf|long|lowByte|LowByte|lrint|lrintf|lround|lroundf|macAddress|maintain|map|Map|Max|max|messageAvailable|Micros|micros|millis|Millis|Min|min|mkdir|motorsStop|motorsWrite|mouseDragged|mouseMoved|mousePressed|mouseReleased|move|noAutoscroll|noBlink|noBuffer|noCursor|noDisplay|noFill|noInterrupts|NoInterrupts|noListenOnLocalhost|noStroke|noTone|NoTone|onReceive|onRequest|open|openNextFile|overflow|parseCommand|parseFloat|parseInt|parsePacket|pauseMode|peek|PinMode|pinMode|playFile|playMelody|point|pointTo|position|Pow|pow|powf|prepare|press|print|printFirmwareVersion|println|printVersion|process|processInput|PulseIn|pulseIn|pulseInLong|PulseInLong|put|radians|random|Random|randomSeed|RandomSeed|read|readAccelerometer|readBlue|readButton|readBytes|readBytesUntil|readGreen|readJoystickButton|readJoystickSwitch|readJoystickX|readJoystickY|readLightSensor|readMessage|readMicrophone|readNetworks|readRed|readSlider|readString|readStringUntil|readTemperature|ready|rect|release|releaseAll|remoteIP|remoteNumber|remotePort|remove|replace|requestFrom|retrieveCallingNumber|rewindDirectory|rightToLeft|rmdir|robotNameRead|robotNameWrite|round|roundf|RSSI|run|runAsynchronously|running|runShellCommand|runShellCommandAsynchronously|scanNetworks|scrollDisplayLeft|scrollDisplayRight|seek|sendAnalog|sendDigitalPortPair|sendDigitalPorts|sendString|sendSysex|Serial_Available|Serial_Begin|Serial_End|Serial_Flush|Serial_Peek|Serial_Print|Serial_Println|Serial_Read|serialEvent|setBand|setBitOrder|setCharAt|setClockDivider|setCursor|setDataMode|setDNS|setFirmwareVersion|setMode|setPINUsed|setSpeed|setTextSize|setTimeout|ShiftIn|shiftIn|ShiftOut|shiftOut|shutdown|signbit|sin|Sin|sinf|sinh|sinhf|size|sizeof|Sq|sq|Sqrt|sqrt|sqrtf|SSID|startLoop|startsWith|step|stop|stroke|subnetMask|substring|switchPIN|tan|Tan|tanf|tanh|tanhf|tempoWrite|text|toCharArray|toInt|toLowerCase|tone|Tone|toUpperCase|transfer|trim|trunc|truncf|tuneWrite|turn|updateIR|userNameRead|userNameWrite|voiceCall|waitContinue|width|WiFiServer|word|write|writeBlue|writeGreen|writeJSON|writeMessage|writeMicroseconds|writeRed|writeRGB|yield|Yield)\b`, NameFunction, nil},
+			// End of: Arduino-specific syntax
+			{Words(``, `\b`, `inline`, `_inline`, `__inline`, `naked`, `restrict`, `thread`, `typename`), KeywordReserved, nil},
+			{`(__m(128i|128d|128|64))\b`, KeywordReserved, nil},
+			{Words(`__`, `\b`, `asm`, `int8`, `based`, `except`, `int16`, `stdcall`, `cdecl`, `fastcall`, `int32`, `declspec`, `finally`, `int64`, `try`, `leave`, `wchar_t`, `w64`, `unaligned`, `raise`, `noop`, `identifier`, `forceinline`, `assume`), KeywordReserved, nil},
+			{`(true|false|NULL)\b`, NameBuiltin, nil},
+			{`([a-zA-Z_]\w*)(\s*)(:)(?!:)`, ByGroups(NameLabel, Text, Punctuation), nil},
+			{`[a-zA-Z_]\w*`, Name, nil},
+		},
+		"root": {
+			Include("whitespace"),
+			{`((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;{]*)(\{)`, ByGroups(UsingSelf("root"), NameFunction, UsingSelf("root"), UsingSelf("root"), Punctuation), Push("function")},
+			{`((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;]*)(;)`, ByGroups(UsingSelf("root"), NameFunction, UsingSelf("root"), UsingSelf("root"), Punctuation), nil},
+			Default(Push("statement")),
+			{Words(`__`, `\b`, `virtual_inheritance`, `uuidof`, `super`, `single_inheritance`, `multiple_inheritance`, `interface`, `event`), KeywordReserved, nil},
+			{`__(offload|blockingoffload|outer)\b`, KeywordPseudo, nil},
+		},
+		"classname": {
+			{`[a-zA-Z_]\w*`, NameClass, Pop(1)},
+			{`\s*(?=>)`, Text, Pop(1)},
+		},
+		"whitespace": {
+			{`^#if\s+0`, CommentPreproc, Push("if0")},
+			{`^#`, CommentPreproc, Push("macro")},
+			{`^(\s*(?:/[*].*?[*]/\s*)?)(#if\s+0)`, ByGroups(UsingSelf("root"), CommentPreproc), Push("if0")},
+			{`^(\s*(?:/[*].*?[*]/\s*)?)(#)`, ByGroups(UsingSelf("root"), CommentPreproc), Push("macro")},
+			{`\n`, Text, nil},
+			{`\s+`, Text, nil},
+			{`\\\n`, Text, nil},
+			{`//(\n|[\w\W]*?[^\\]\n)`, CommentSingle, nil},
+			{`/(\\\n)?[*][\w\W]*?[*](\\\n)?/`, CommentMultiline, nil},
+			{`/(\\\n)?[*][\w\W]*`, CommentMultiline, nil},
+		},
+		"statement": {
+			Include("whitespace"),
+			Include("statements"),
+			{`[{}]`, Punctuation, nil},
+			{`;`, Punctuation, Pop(1)},
+		},
+		"function": {
+			Include("whitespace"),
+			Include("statements"),
+			{`;`, Punctuation, nil},
+			{`\{`, Punctuation, Push()},
+			{`\}`, Punctuation, Pop(1)},
+		},
+		"string": {
+			{`"`, LiteralString, Pop(1)},
+			{`\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})`, LiteralStringEscape, nil},
+			{`[^\\"\n]+`, LiteralString, nil},
+			{`\\\n`, LiteralString, nil},
+			{`\\`, LiteralString, nil},
+		},
+		"macro": {
+			{`(include)(\s*(?:/[*].*?[*]/\s*)?)([^\n]+)`, ByGroups(CommentPreproc, Text, CommentPreprocFile), nil},
+			{`[^/\n]+`, CommentPreproc, nil},
+			{`/[*](.|\n)*?[*]/`, CommentMultiline, nil},
+			{`//.*?\n`, CommentSingle, Pop(1)},
+			{`/`, CommentPreproc, nil},
+			{`(?<=\\)\n`, CommentPreproc, nil},
+			{`\n`, CommentPreproc, Pop(1)},
+		},
+		"if0": {
+			{`^\s*#if.*?(?<!\\)\n`, CommentPreproc, Push()},
+			{`^\s*#el(?:se|if).*\n`, CommentPreproc, Pop(1)},
+			{`^\s*#endif.*?(?<!\\)\n`, CommentPreproc, Pop(1)},
+			{`.*?\n`, Comment, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/a/awk.go

@@ -0,0 +1,48 @@
+package a
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Awk lexer.
+var Awk = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Awk",
+		Aliases:   []string{"awk", "gawk", "mawk", "nawk"},
+		Filenames: []string{"*.awk"},
+		MimeTypes: []string{"application/x-awk"},
+	},
+	Rules{
+		"commentsandwhitespace": {
+			{`\s+`, Text, nil},
+			{`#.*$`, CommentSingle, nil},
+		},
+		"slashstartsregex": {
+			Include("commentsandwhitespace"),
+			{`/(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/\B`, LiteralStringRegex, Pop(1)},
+			{`(?=/)`, Text, Push("#pop", "badregex")},
+			Default(Pop(1)),
+		},
+		"badregex": {
+			{`\n`, Text, Pop(1)},
+		},
+		"root": {
+			{`^(?=\s|/)`, Text, Push("slashstartsregex")},
+			Include("commentsandwhitespace"),
+			{`\+\+|--|\|\||&&|in\b|\$|!?~|(\*\*|[-<>+*%\^/!=|])=?`, Operator, Push("slashstartsregex")},
+			{`[{(\[;,]`, Punctuation, Push("slashstartsregex")},
+			{`[})\].]`, Punctuation, nil},
+			{`(break|continue|do|while|exit|for|if|else|return)\b`, Keyword, Push("slashstartsregex")},
+			{`function\b`, KeywordDeclaration, Push("slashstartsregex")},
+			{`(atan2|cos|exp|int|log|rand|sin|sqrt|srand|gensub|gsub|index|length|match|split|sprintf|sub|substr|tolower|toupper|close|fflush|getline|next|nextfile|print|printf|strftime|systime|delete|system)\b`, KeywordReserved, nil},
+			{`(ARGC|ARGIND|ARGV|BEGIN|CONVFMT|ENVIRON|END|ERRNO|FIELDWIDTHS|FILENAME|FNR|FS|IGNORECASE|NF|NR|OFMT|OFS|ORFS|RLENGTH|RS|RSTART|RT|SUBSEP)\b`, NameBuiltin, nil},
+			{`[$a-zA-Z_]\w*`, NameOther, nil},
+			{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
+			{`0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`"(\\\\|\\"|[^"])*"`, LiteralStringDouble, nil},
+			{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/b/ballerina.go

@@ -0,0 +1,46 @@
+package b
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Ballerina lexer.
+var Ballerina = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Ballerina",
+		Aliases:   []string{"ballerina"},
+		Filenames: []string{"*.bal"},
+		MimeTypes: []string{"text/x-ballerina"},
+		DotAll:    true,
+	},
+	Rules{
+		"root": {
+			{`[^\S\n]+`, Text, nil},
+			{`//.*?\n`, CommentSingle, nil},
+			{`/\*.*?\*/`, CommentMultiline, nil},
+			{`(break|catch|continue|done|else|finally|foreach|forever|fork|if|lock|match|return|throw|transaction|try|while)\b`, Keyword, nil},
+			{`((?:(?:[^\W\d]|\$)[\w.\[\]$<>]*\s+)+?)((?:[^\W\d]|\$)[\w$]*)(\s*)(\()`, ByGroups(UsingSelf("root"), NameFunction, Text, Operator), nil},
+			{`@[^\W\d][\w.]*`, NameDecorator, nil},
+			{`(annotation|bind|but|endpoint|error|function|object|private|public|returns|service|type|var|with|worker)\b`, KeywordDeclaration, nil},
+			{`(boolean|byte|decimal|float|int|json|map|nil|record|string|table|xml)\b`, KeywordType, nil},
+			{`(true|false|null)\b`, KeywordConstant, nil},
+			{`(import)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
+			{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
+			{`'\\.'|'[^\\]'|'\\u[0-9a-fA-F]{4}'`, LiteralStringChar, nil},
+			{`(\.)((?:[^\W\d]|\$)[\w$]*)`, ByGroups(Operator, NameAttribute), nil},
+			{`^\s*([^\W\d]|\$)[\w$]*:`, NameLabel, nil},
+			{`([^\W\d]|\$)[\w$]*`, Name, nil},
+			{`([0-9][0-9_]*\.([0-9][0-9_]*)?|\.[0-9][0-9_]*)([eE][+\-]?[0-9][0-9_]*)?[fFdD]?|[0-9][eE][+\-]?[0-9][0-9_]*[fFdD]?|[0-9]([eE][+\-]?[0-9][0-9_]*)?[fFdD]|0[xX]([0-9a-fA-F][0-9a-fA-F_]*\.?|([0-9a-fA-F][0-9a-fA-F_]*)?\.[0-9a-fA-F][0-9a-fA-F_]*)[pP][+\-]?[0-9][0-9_]*[fFdD]?`, LiteralNumberFloat, nil},
+			{`0[xX][0-9a-fA-F][0-9a-fA-F_]*[lL]?`, LiteralNumberHex, nil},
+			{`0[bB][01][01_]*[lL]?`, LiteralNumberBin, nil},
+			{`0[0-7_]+[lL]?`, LiteralNumberOct, nil},
+			{`0|[1-9][0-9_]*[lL]?`, LiteralNumberInteger, nil},
+			{`[~^*!%&\[\](){}<>|+=:;,./?-]`, Operator, nil},
+			{`\n`, Text, nil},
+		},
+		"import": {
+			{`[\w.]+`, NameNamespace, Pop(1)},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/b/bash.go

@@ -0,0 +1,95 @@
+package b
+
+import (
+	"regexp"
+
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+var bashAnalyserRe = regexp.MustCompile(`(?m)^#!.*/bin/(?:env |)(?:bash|zsh|sh|ksh)`)
+
+// Bash lexer.
+var Bash = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Bash",
+		Aliases:   []string{"bash", "sh", "ksh", "zsh", "shell"},
+		Filenames: []string{"*.sh", "*.ksh", "*.bash", "*.ebuild", "*.eclass", "*.exheres-0", "*.exlib", "*.zsh", "*.zshrc", ".bashrc", "bashrc", ".bash_*", "bash_*", "zshrc", ".zshrc", "PKGBUILD"},
+		MimeTypes: []string{"application/x-sh", "application/x-shellscript"},
+	},
+	Rules{
+		"root": {
+			Include("basic"),
+			{"`", LiteralStringBacktick, Push("backticks")},
+			Include("data"),
+			Include("interp"),
+		},
+		"interp": {
+			{`\$\(\(`, Keyword, Push("math")},
+			{`\$\(`, Keyword, Push("paren")},
+			{`\$\{#?`, LiteralStringInterpol, Push("curly")},
+			{`\$[a-zA-Z_]\w*`, NameVariable, nil},
+			{`\$(?:\d+|[#$?!_*@-])`, NameVariable, nil},
+			{`\$`, Text, nil},
+		},
+		"basic": {
+			{`\b(if|fi|else|while|do|done|for|then|return|function|case|select|continue|until|esac|elif)(\s*)\b`, ByGroups(Keyword, Text), nil},
+			{"\\b(alias|bg|bind|break|builtin|caller|cd|command|compgen|complete|declare|dirs|disown|echo|enable|eval|exec|exit|export|false|fc|fg|getopts|hash|help|history|jobs|kill|let|local|logout|popd|printf|pushd|pwd|read|readonly|set|shift|shopt|source|suspend|test|time|times|trap|true|type|typeset|ulimit|umask|unalias|unset|wait)(?=[\\s)`])", NameBuiltin, nil},
+			{`\A#!.+\n`, CommentPreproc, nil},
+			{`#.*\S`, CommentSingle, nil},
+			{`\\[\w\W]`, LiteralStringEscape, nil},
+			{`(\b\w+)(\s*)(\+?=)`, ByGroups(NameVariable, Text, Operator), nil},
+			{`[\[\]{}()=]`, Operator, nil},
+			{`<<<`, Operator, nil},
+			{`<<-?\s*(\'?)\\?(\w+)[\w\W]+?\2`, LiteralString, nil},
+			{`&&|\|\|`, Operator, nil},
+		},
+		"data": {
+			{`(?s)\$?"(\\\\|\\[0-7]+|\\.|[^"\\$])*"`, LiteralStringDouble, nil},
+			{`"`, LiteralStringDouble, Push("string")},
+			{`(?s)\$'(\\\\|\\[0-7]+|\\.|[^'\\])*'`, LiteralStringSingle, nil},
+			{`(?s)'.*?'`, LiteralStringSingle, nil},
+			{`;`, Punctuation, nil},
+			{`&`, Punctuation, nil},
+			{`\|`, Punctuation, nil},
+			{`\s+`, Text, nil},
+			{`\d+(?= |$)`, LiteralNumber, nil},
+			{"[^=\\s\\[\\]{}()$\"\\'`\\\\<&|;]+", Text, nil},
+			{`<`, Text, nil},
+		},
+		"string": {
+			{`"`, LiteralStringDouble, Pop(1)},
+			{`(?s)(\\\\|\\[0-7]+|\\.|[^"\\$])+`, LiteralStringDouble, nil},
+			Include("interp"),
+		},
+		"curly": {
+			{`\}`, LiteralStringInterpol, Pop(1)},
+			{`:-`, Keyword, nil},
+			{`\w+`, NameVariable, nil},
+			{"[^}:\"\\'`$\\\\]+", Punctuation, nil},
+			{`:`, Punctuation, nil},
+			Include("root"),
+		},
+		"paren": {
+			{`\)`, Keyword, Pop(1)},
+			Include("root"),
+		},
+		"math": {
+			{`\)\)`, Keyword, Pop(1)},
+			{`[-+*/%^|&]|\*\*|\|\|`, Operator, nil},
+			{`\d+#\d+`, LiteralNumber, nil},
+			{`\d+#(?! )`, LiteralNumber, nil},
+			{`\d+`, LiteralNumber, nil},
+			Include("root"),
+		},
+		"backticks": {
+			{"`", LiteralStringBacktick, Pop(1)},
+			Include("root"),
+		},
+	},
+).SetAnalyser(func(text string) float32 {
+	if bashAnalyserRe.FindString(text) != "" {
+		return 1.0
+	}
+	return 0.0
+}))

vendor/github.com/alecthomas/chroma/lexers/b/batch.go

@@ -0,0 +1,194 @@
+package b
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Batchfile lexer.
+var Batchfile = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "Batchfile",
+		Aliases:         []string{"bat", "batch", "dosbatch", "winbatch"},
+		Filenames:       []string{"*.bat", "*.cmd"},
+		MimeTypes:       []string{"application/x-dos-batch"},
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			{`\)((?=\()|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))(?:(?:[^\n\x1a^]|\^[\n\x1a]?[\w\W])*)`, CommentSingle, nil},
+			{`(?=((?:(?<=^[^:])|^[^:]?)[\t\v\f\r ,;=\xa0]*)(:))`, Text, Push("follow")},
+			{`(?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)`, UsingSelf("text"), nil},
+			Include("redirect"),
+			{`[\n\x1a]+`, Text, nil},
+			{`\(`, Punctuation, Push("root/compound")},
+			{`@+`, Punctuation, nil},
+			{`((?:for|if|rem)(?:(?=(?:\^[\n\x1a]?)?/)|(?:(?!\^)|(?<=m))(?:(?=\()|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+)?(?:\^[\n\x1a]?)?/(?:\^[\n\x1a]?)?\?)`, ByGroups(Keyword, UsingSelf("text")), Push("follow")},
+			{`(goto(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(]))((?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|[^"%\n\x1a&<>|])*(?:\^[\n\x1a]?)?/(?:\^[\n\x1a]?)?\?(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|[^"%\n\x1a&<>|])*)`, ByGroups(Keyword, UsingSelf("text")), Push("follow")},
+			{Words(``, `(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(])`, `assoc`, `break`, `cd`, `chdir`, `cls`, `color`, `copy`, `date`, `del`, `dir`, `dpath`, `echo`, `endlocal`, `erase`, `exit`, `ftype`, `keys`, `md`, `mkdir`, `mklink`, `move`, `path`, `pause`, `popd`, `prompt`, `pushd`, `rd`, `ren`, `rename`, `rmdir`, `setlocal`, `shift`, `start`, `time`, `title`, `type`, `ver`, `verify`, `vol`), Keyword, Push("follow")},
+			{`(call)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)(:)`, ByGroups(Keyword, UsingSelf("text"), Punctuation), Push("call")},
+			{`call(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(])`, Keyword, nil},
+			{`(for(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])(?!\^))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))(/f(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))`, ByGroups(Keyword, UsingSelf("text"), Keyword), Push("for/f", "for")},
+			{`(for(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])(?!\^))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))(/l(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))`, ByGroups(Keyword, UsingSelf("text"), Keyword), Push("for/l", "for")},
+			{`for(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])(?!\^)`, Keyword, Push("for2", "for")},
+			{`(goto(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(]))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)(:?)`, ByGroups(Keyword, UsingSelf("text"), Punctuation), Push("label")},
+			{`(if(?:(?=\()|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))(?!\^))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)((?:/i(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))?)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)((?:not(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))?)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)`, ByGroups(Keyword, UsingSelf("text"), Keyword, UsingSelf("text"), Keyword, UsingSelf("text")), Push("(?", "if")},
+			{`rem(((?=\()|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))(?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?(?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+))+)?.*|(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(])(?:(?:[^\n\x1a^]|\^[\n\x1a]?[\w\W])*))`, CommentSingle, Push("follow")},
+			{`(set(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(]))((?:(?:\^[\n\x1a]?)?[^\S\n])*)(/a)`, ByGroups(Keyword, UsingSelf("text"), Keyword), Push("arithmetic")},
+			{`(set(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(]))((?:(?:\^[\n\x1a]?)?[^\S\n])*)((?:/p)?)((?:(?:\^[\n\x1a]?)?[^\S\n])*)((?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|^=]|\^[\n\x1a]?[^"=])+)?)((?:(?:\^[\n\x1a]?)?=)?)`, ByGroups(Keyword, UsingSelf("text"), Keyword, UsingSelf("text"), UsingSelf("variable"), Punctuation), Push("follow")},
+			Default(Push("follow")),
+		},
+		"follow": {
+			{`((?:(?<=^[^:])|^[^:]?)[\t\v\f\r ,;=\xa0]*)(:)([\t\v\f\r ,;=\xa0]*)((?:(?:[^\n\x1a&<>|\t\v\f\r ,;=\xa0+:^]|\^[\n\x1a]?[\w\W])*))(.*)`, ByGroups(Text, Punctuation, Text, NameLabel, CommentSingle), nil},
+			Include("redirect"),
+			{`(?=[\n\x1a])`, Text, Pop(1)},
+			{`\|\|?|&&?`, Punctuation, Pop(1)},
+			Include("text"),
+		},
+		"arithmetic": {
+			{`0[0-7]+`, LiteralNumberOct, nil},
+			{`0x[\da-f]+`, LiteralNumberHex, nil},
+			{`\d+`, LiteralNumberInteger, nil},
+			{`[(),]+`, Punctuation, nil},
+			{`([=+\-*/!~]|%|\^\^)+`, Operator, nil},
+			{`((?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(\^[\n\x1a]?)?[^()=+\-*/!~%^"\n\x1a&<>|\t\v\f\r ,;=\xa0]|\^[\n\x1a\t\v\f\r ,;=\xa0]?[\w\W])+`, UsingSelf("variable"), nil},
+			{`(?=[\x00|&])`, Text, Pop(1)},
+			Include("follow"),
+		},
+		"call": {
+			{`(:?)((?:(?:[^\n\x1a&<>|\t\v\f\r ,;=\xa0+:^]|\^[\n\x1a]?[\w\W])*))`, ByGroups(Punctuation, NameLabel), Pop(1)},
+		},
+		"label": {
+			{`((?:(?:[^\n\x1a&<>|\t\v\f\r ,;=\xa0+:^]|\^[\n\x1a]?[\w\W])*)?)((?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|\^[\n\x1a]?[\w\W]|[^"%^\n\x1a&<>|])*)`, ByGroups(NameLabel, CommentSingle), Pop(1)},
+		},
+		"redirect": {
+			{`((?:(?<=[\n\x1a\t\v\f\r ,;=\xa0])\d)?)(>>?&|<&)([\n\x1a\t\v\f\r ,;=\xa0]*)(\d)`, ByGroups(LiteralNumberInteger, Punctuation, Text, LiteralNumberInteger), nil},
+			{`((?:(?<=[\n\x1a\t\v\f\r ,;=\xa0])(?<!\^[\n\x1a])\d)?)(>>?|<)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?(?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+))+))`, ByGroups(LiteralNumberInteger, Punctuation, UsingSelf("text")), nil},
+		},
+		"root/compound": {
+			{`\)`, Punctuation, Pop(1)},
+			{`(?=((?:(?<=^[^:])|^[^:]?)[\t\v\f\r ,;=\xa0]*)(:))`, Text, Push("follow/compound")},
+			{`(?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)`, UsingSelf("text"), nil},
+			Include("redirect/compound"),
+			{`[\n\x1a]+`, Text, nil},
+			{`\(`, Punctuation, Push("root/compound")},
+			{`@+`, Punctuation, nil},
+			{`((?:for|if|rem)(?:(?=(?:\^[\n\x1a]?)?/)|(?:(?!\^)|(?<=m))(?:(?=\()|(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])))))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0)])+)?(?:\^[\n\x1a]?)?/(?:\^[\n\x1a]?)?\?)`, ByGroups(Keyword, UsingSelf("text")), Push("follow/compound")},
+			{`(goto(?:(?=\))|(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(])))((?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|[^"%\n\x1a&<>|)])*(?:\^[\n\x1a]?)?/(?:\^[\n\x1a]?)?\?(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|[^"%\n\x1a&<>|)])*)`, ByGroups(Keyword, UsingSelf("text")), Push("follow/compound")},
+			{Words(``, `(?:(?=\))|(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(]))`, `assoc`, `break`, `cd`, `chdir`, `cls`, `color`, `copy`, `date`, `del`, `dir`, `dpath`, `echo`, `endlocal`, `erase`, `exit`, `ftype`, `keys`, `md`, `mkdir`, `mklink`, `move`, `path`, `pause`, `popd`, `prompt`, `pushd`, `rd`, `ren`, `rename`, `rmdir`, `setlocal`, `shift`, `start`, `time`, `title`, `type`, `ver`, `verify`, `vol`), Keyword, Push("follow/compound")},
+			{`(call)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)(:)`, ByGroups(Keyword, UsingSelf("text"), Punctuation), Push("call/compound")},
+			{`call(?:(?=\))|(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(]))`, Keyword, nil},
+			{`(for(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))(?!\^))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))(/f(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])))`, ByGroups(Keyword, UsingSelf("text"), Keyword), Push("for/f", "for")},
+			{`(for(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))(?!\^))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))(/l(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])))`, ByGroups(Keyword, UsingSelf("text"), Keyword), Push("for/l", "for")},
+			{`for(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))(?!\^)`, Keyword, Push("for2", "for")},
+			{`(goto(?:(?=\))|(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(])))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)(:?)`, ByGroups(Keyword, UsingSelf("text"), Punctuation), Push("label/compound")},
+			{`(if(?:(?=\()|(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])))(?!\^))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)((?:/i(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])))?)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)((?:not(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])))?)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)`, ByGroups(Keyword, UsingSelf("text"), Keyword, UsingSelf("text"), Keyword, UsingSelf("text")), Push("(?", "if")},
+			{`rem(((?=\()|(?:(?=\))|(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])))(?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?(?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+))+)?.*|(?:(?=\))|(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(]))(?:(?:[^\n\x1a^)]|\^[\n\x1a]?[^)])*))`, CommentSingle, Push("follow/compound")},
+			{`(set(?:(?=\))|(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(])))((?:(?:\^[\n\x1a]?)?[^\S\n])*)(/a)`, ByGroups(Keyword, UsingSelf("text"), Keyword), Push("arithmetic/compound")},
+			{`(set(?:(?=\))|(?=(?:\^[\n\x1a]?)?[\t\v\f\r ,;=\xa0+./:[\\\]]|[\n\x1a&<>|(])))((?:(?:\^[\n\x1a]?)?[^\S\n])*)((?:/p)?)((?:(?:\^[\n\x1a]?)?[^\S\n])*)((?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|^=)]|\^[\n\x1a]?[^"=])+)?)((?:(?:\^[\n\x1a]?)?=)?)`, ByGroups(Keyword, UsingSelf("text"), Keyword, UsingSelf("text"), UsingSelf("variable"), Punctuation), Push("follow/compound")},
+			Default(Push("follow/compound")),
+		},
+		"follow/compound": {
+			{`(?=\))`, Text, Pop(1)},
+			{`((?:(?<=^[^:])|^[^:]?)[\t\v\f\r ,;=\xa0]*)(:)([\t\v\f\r ,;=\xa0]*)((?:(?:[^\n\x1a&<>|\t\v\f\r ,;=\xa0+:^)]|\^[\n\x1a]?[^)])*))(.*)`, ByGroups(Text, Punctuation, Text, NameLabel, CommentSingle), nil},
+			Include("redirect/compound"),
+			{`(?=[\n\x1a])`, Text, Pop(1)},
+			{`\|\|?|&&?`, Punctuation, Pop(1)},
+			Include("text"),
+		},
+		"arithmetic/compound": {
+			{`(?=\))`, Text, Pop(1)},
+			{`0[0-7]+`, LiteralNumberOct, nil},
+			{`0x[\da-f]+`, LiteralNumberHex, nil},
+			{`\d+`, LiteralNumberInteger, nil},
+			{`[(),]+`, Punctuation, nil},
+			{`([=+\-*/!~]|%|\^\^)+`, Operator, nil},
+			{`((?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(\^[\n\x1a]?)?[^()=+\-*/!~%^"\n\x1a&<>|\t\v\f\r ,;=\xa0]|\^[\n\x1a\t\v\f\r ,;=\xa0]?[^)])+`, UsingSelf("variable"), nil},
+			{`(?=[\x00|&])`, Text, Pop(1)},
+			Include("follow"),
+		},
+		"call/compound": {
+			{`(?=\))`, Text, Pop(1)},
+			{`(:?)((?:(?:[^\n\x1a&<>|\t\v\f\r ,;=\xa0+:^)]|\^[\n\x1a]?[^)])*))`, ByGroups(Punctuation, NameLabel), Pop(1)},
+		},
+		"label/compound": {
+			{`(?=\))`, Text, Pop(1)},
+			{`((?:(?:[^\n\x1a&<>|\t\v\f\r ,;=\xa0+:^)]|\^[\n\x1a]?[^)])*)?)((?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|\^[\n\x1a]?[^)]|[^"%^\n\x1a&<>|)])*)`, ByGroups(NameLabel, CommentSingle), Pop(1)},
+		},
+		"redirect/compound": {
+			{`((?:(?<=[\n\x1a\t\v\f\r ,;=\xa0])\d)?)(>>?&|<&)([\n\x1a\t\v\f\r ,;=\xa0]*)(\d)`, ByGroups(LiteralNumberInteger, Punctuation, Text, LiteralNumberInteger), nil},
+			{`((?:(?<=[\n\x1a\t\v\f\r ,;=\xa0])(?<!\^[\n\x1a])\d)?)(>>?|<)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?(?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0)])+))+))`, ByGroups(LiteralNumberInteger, Punctuation, UsingSelf("text")), nil},
+		},
+		"variable-or-escape": {
+			{`(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))`, NameVariable, nil},
+			{`%%|\^[\n\x1a]?(\^!|[\w\W])`, LiteralStringEscape, nil},
+		},
+		"string": {
+			{`"`, LiteralStringDouble, Pop(1)},
+			{`(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))`, NameVariable, nil},
+			{`\^!|%%`, LiteralStringEscape, nil},
+			{`[^"%^\n\x1a]+|[%^]`, LiteralStringDouble, nil},
+			Default(Pop(1)),
+		},
+		"sqstring": {
+			Include("variable-or-escape"),
+			{`[^%]+|%`, LiteralStringSingle, nil},
+		},
+		"bqstring": {
+			Include("variable-or-escape"),
+			{`[^%]+|%`, LiteralStringBacktick, nil},
+		},
+		"text": {
+			{`"`, LiteralStringDouble, Push("string")},
+			Include("variable-or-escape"),
+			{`[^"%^\n\x1a&<>|\t\v\f\r ,;=\xa0\d)]+|.`, Text, nil},
+		},
+		"variable": {
+			{`"`, LiteralStringDouble, Push("string")},
+			Include("variable-or-escape"),
+			{`[^"%^\n\x1a]+|.`, NameVariable, nil},
+		},
+		"for": {
+			{`((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))(in)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))(\()`, ByGroups(UsingSelf("text"), Keyword, UsingSelf("text"), Punctuation), Pop(1)},
+			Include("follow"),
+		},
+		"for2": {
+			{`\)`, Punctuation, nil},
+			{`((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))(do(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))`, ByGroups(UsingSelf("text"), Keyword), Pop(1)},
+			{`[\n\x1a]+`, Text, nil},
+			Include("follow"),
+		},
+		"for/f": {
+			{`(")((?:(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|[^"])*?")([\n\x1a\t\v\f\r ,;=\xa0]*)(\))`, ByGroups(LiteralStringDouble, UsingSelf("string"), Text, Punctuation), nil},
+			{`"`, LiteralStringDouble, Push("#pop", "for2", "string")},
+			{`('(?:%%|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|[\w\W])*?')([\n\x1a\t\v\f\r ,;=\xa0]*)(\))`, ByGroups(UsingSelf("sqstring"), Text, Punctuation), nil},
+			{"(`(?:%%|(?:(?:%(?:\\*|(?:~[a-z]*(?:\\$[^:]+:)?)?\\d|[^%:\\n\\x1a]+(?::(?:~(?:-?\\d+)?(?:,(?:-?\\d+)?)?|(?:[^%\\n\\x1a^]|\\^[^%\\n\\x1a])[^=\\n\\x1a]*=(?:[^%\\n\\x1a^]|\\^[^%\\n\\x1a])*)?)?%))|(?:\\^?![^!:\\n\\x1a]+(?::(?:~(?:-?\\d+)?(?:,(?:-?\\d+)?)?|(?:[^!\\n\\x1a^]|\\^[^!\\n\\x1a])[^=\\n\\x1a]*=(?:[^!\\n\\x1a^]|\\^[^!\\n\\x1a])*)?)?\\^?!))|[\\w\\W])*?`)([\\n\\x1a\\t\\v\\f\\r ,;=\\xa0]*)(\\))", ByGroups(UsingSelf("bqstring"), Text, Punctuation), nil},
+			Include("for2"),
+		},
+		"for/l": {
+			{`-?\d+`, LiteralNumberInteger, nil},
+			Include("for2"),
+		},
+		"if": {
+			{`((?:cmdextversion|errorlevel)(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))(\d+)`, ByGroups(Keyword, UsingSelf("text"), LiteralNumberInteger), Pop(1)},
+			{`(defined(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))((?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+))+))`, ByGroups(Keyword, UsingSelf("text"), UsingSelf("variable")), Pop(1)},
+			{`(exist(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)(?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+))+))`, ByGroups(Keyword, UsingSelf("text")), Pop(1)},
+			{`((?:-?(?:0[0-7]+|0x[\da-f]+|\d+)(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a]))(?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))((?:equ|geq|gtr|leq|lss|neq))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)(?:-?(?:0[0-7]+|0x[\da-f]+|\d+)(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])))`, ByGroups(UsingSelf("arithmetic"), OperatorWord, UsingSelf("arithmetic")), Pop(1)},
+			{`(?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+))+)`, UsingSelf("text"), Push("#pop", "if2")},
+		},
+		"if2": {
+			{`((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?)(==)((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)?(?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+))+))`, ByGroups(UsingSelf("text"), Operator, UsingSelf("text")), Pop(1)},
+			{`((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+))((?:equ|geq|gtr|leq|lss|neq))((?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)(?:[&<>|]+|(?:(?:"[^\n\x1a"]*(?:"|(?=[\n\x1a])))|(?:(?:%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|[^%:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%\n\x1a^]|\^[^%\n\x1a])[^=\n\x1a]*=(?:[^%\n\x1a^]|\^[^%\n\x1a])*)?)?%))|(?:\^?![^!:\n\x1a]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^!\n\x1a^]|\^[^!\n\x1a])[^=\n\x1a]*=(?:[^!\n\x1a^]|\^[^!\n\x1a])*)?)?\^?!))|(?:(?:(?:\^[\n\x1a]?)?[^"\n\x1a&<>|\t\v\f\r ,;=\xa0])+))+))`, ByGroups(UsingSelf("text"), OperatorWord, UsingSelf("text")), Pop(1)},
+		},
+		"(?": {
+			{`(?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)`, UsingSelf("text"), nil},
+			{`\(`, Punctuation, Push("#pop", "else?", "root/compound")},
+			Default(Pop(1)),
+		},
+		"else?": {
+			{`(?:(?:(?:\^[\n\x1a])?[\t\v\f\r ,;=\xa0])+)`, UsingSelf("text"), nil},
+			{`else(?=\^?[\t\v\f\r ,;=\xa0]|[&<>|\n\x1a])`, Keyword, Pop(1)},
+			Default(Pop(1)),
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/b/bibtex.go

@@ -0,0 +1,76 @@
+package b
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Bibtex lexer.
+var Bibtex = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "BibTeX",
+		Aliases:         []string{"bib", "bibtex"},
+		Filenames:       []string{"*.bib"},
+		MimeTypes:       []string{"text/x-bibtex"},
+		NotMultiline:    true,
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			Include("whitespace"),
+			{`@comment`, Comment, nil},
+			{`@preamble`, NameClass, Push("closing-brace", "value", "opening-brace")},
+			{`@string`, NameClass, Push("closing-brace", "field", "opening-brace")},
+			{"@[a-z_@!$&*+\\-./:;<>?\\[\\\\\\]^`|~][\\w@!$&*+\\-./:;<>?\\[\\\\\\]^`|~]*", NameClass, Push("closing-brace", "command-body", "opening-brace")},
+			{`.+`, Comment, nil},
+		},
+		"opening-brace": {
+			Include("whitespace"),
+			{`[{(]`, Punctuation, Pop(1)},
+		},
+		"closing-brace": {
+			Include("whitespace"),
+			{`[})]`, Punctuation, Pop(1)},
+		},
+		"command-body": {
+			Include("whitespace"),
+			{`[^\s\,\}]+`, NameLabel, Push("#pop", "fields")},
+		},
+		"fields": {
+			Include("whitespace"),
+			{`,`, Punctuation, Push("field")},
+			Default(Pop(1)),
+		},
+		"field": {
+			Include("whitespace"),
+			{"[a-z_@!$&*+\\-./:;<>?\\[\\\\\\]^`|~][\\w@!$&*+\\-./:;<>?\\[\\\\\\]^`|~]*", NameAttribute, Push("value", "=")},
+			Default(Pop(1)),
+		},
+		"=": {
+			Include("whitespace"),
+			{`=`, Punctuation, Pop(1)},
+		},
+		"value": {
+			Include("whitespace"),
+			{"[a-z_@!$&*+\\-./:;<>?\\[\\\\\\]^`|~][\\w@!$&*+\\-./:;<>?\\[\\\\\\]^`|~]*", NameVariable, nil},
+			{`"`, LiteralString, Push("quoted-string")},
+			{`\{`, LiteralString, Push("braced-string")},
+			{`[\d]+`, LiteralNumber, nil},
+			{`#`, Punctuation, nil},
+			Default(Pop(1)),
+		},
+		"quoted-string": {
+			{`\{`, LiteralString, Push("braced-string")},
+			{`"`, LiteralString, Pop(1)},
+			{`[^\{\"]+`, LiteralString, nil},
+		},
+		"braced-string": {
+			{`\{`, LiteralString, Push()},
+			{`\}`, LiteralString, Pop(1)},
+			{`[^\{\}]+`, LiteralString, nil},
+		},
+		"whitespace": {
+			{`\s+`, Text, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/b/blitz.go

@@ -0,0 +1,48 @@
+package b
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Blitzbasic lexer.
+var Blitzbasic = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "BlitzBasic",
+		Aliases:         []string{"blitzbasic", "b3d", "bplus"},
+		Filenames:       []string{"*.bb", "*.decls"},
+		MimeTypes:       []string{"text/x-bb"},
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			{`[ \t]+`, Text, nil},
+			{`;.*?\n`, CommentSingle, nil},
+			{`"`, LiteralStringDouble, Push("string")},
+			{`[0-9]+\.[0-9]*(?!\.)`, LiteralNumberFloat, nil},
+			{`\.[0-9]+(?!\.)`, LiteralNumberFloat, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`\$[0-9a-f]+`, LiteralNumberHex, nil},
+			{`\%[10]+`, LiteralNumberBin, nil},
+			{Words(`\b`, `\b`, `Shl`, `Shr`, `Sar`, `Mod`, `Or`, `And`, `Not`, `Abs`, `Sgn`, `Handle`, `Int`, `Float`, `Str`, `First`, `Last`, `Before`, `After`), Operator, nil},
+			{`([+\-*/~=<>^])`, Operator, nil},
+			{`[(),:\[\]\\]`, Punctuation, nil},
+			{`\.([ \t]*)([a-z]\w*)`, NameLabel, nil},
+			{`\b(New)\b([ \t]+)([a-z]\w*)`, ByGroups(KeywordReserved, Text, NameClass), nil},
+			{`\b(Gosub|Goto)\b([ \t]+)([a-z]\w*)`, ByGroups(KeywordReserved, Text, NameLabel), nil},
+			{`\b(Object)\b([ \t]*)([.])([ \t]*)([a-z]\w*)\b`, ByGroups(Operator, Text, Punctuation, Text, NameClass), nil},
+			{`\b([a-z]\w*)(?:([ \t]*)(@{1,2}|[#$%])|([ \t]*)([.])([ \t]*)(?:([a-z]\w*)))?\b([ \t]*)(\()`, ByGroups(NameFunction, Text, KeywordType, Text, Punctuation, Text, NameClass, Text, Punctuation), nil},
+			{`\b(Function)\b([ \t]+)([a-z]\w*)(?:([ \t]*)(@{1,2}|[#$%])|([ \t]*)([.])([ \t]*)(?:([a-z]\w*)))?`, ByGroups(KeywordReserved, Text, NameFunction, Text, KeywordType, Text, Punctuation, Text, NameClass), nil},
+			{`\b(Type)([ \t]+)([a-z]\w*)`, ByGroups(KeywordReserved, Text, NameClass), nil},
+			{`\b(Pi|True|False|Null)\b`, KeywordConstant, nil},
+			{`\b(Local|Global|Const|Field|Dim)\b`, KeywordDeclaration, nil},
+			{Words(`\b`, `\b`, `End`, `Return`, `Exit`, `Chr`, `Len`, `Asc`, `New`, `Delete`, `Insert`, `Include`, `Function`, `Type`, `If`, `Then`, `Else`, `ElseIf`, `EndIf`, `For`, `To`, `Next`, `Step`, `Each`, `While`, `Wend`, `Repeat`, `Until`, `Forever`, `Select`, `Case`, `Default`, `Goto`, `Gosub`, `Data`, `Read`, `Restore`), KeywordReserved, nil},
+			{`([a-z]\w*)(?:([ \t]*)(@{1,2}|[#$%])|([ \t]*)([.])([ \t]*)(?:([a-z]\w*)))?`, ByGroups(NameVariable, Text, KeywordType, Text, Punctuation, Text, NameClass), nil},
+		},
+		"string": {
+			{`""`, LiteralStringDouble, nil},
+			{`"C?`, LiteralStringDouble, Pop(1)},
+			{`[^"]+`, LiteralStringDouble, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/b/bnf.go

@@ -0,0 +1,24 @@
+package b
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Bnf lexer.
+var Bnf = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "BNF",
+		Aliases:   []string{"bnf"},
+		Filenames: []string{"*.bnf"},
+		MimeTypes: []string{"text/x-bnf"},
+	},
+	Rules{
+		"root": {
+			{`(<)([ -;=?-~]+)(>)`, ByGroups(Punctuation, NameClass, Punctuation), nil},
+			{`::=`, Operator, nil},
+			{`[^<>:]+`, Text, nil},
+			{`.`, Text, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/b/brainfuck.go

@@ -0,0 +1,34 @@
+package b
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Brainfuck lexer.
+var Brainfuck = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Brainfuck",
+		Aliases:   []string{"brainfuck", "bf"},
+		Filenames: []string{"*.bf", "*.b"},
+		MimeTypes: []string{"application/x-brainfuck"},
+	},
+	Rules{
+		"common": {
+			{`[.,]+`, NameTag, nil},
+			{`[+-]+`, NameBuiltin, nil},
+			{`[<>]+`, NameVariable, nil},
+			{`[^.,+\-<>\[\]]+`, Comment, nil},
+		},
+		"root": {
+			{`\[`, Keyword, Push("loop")},
+			{`\]`, Error, nil},
+			Include("common"),
+		},
+		"loop": {
+			{`\[`, Keyword, Push()},
+			{`\]`, Keyword, Pop(1)},
+			Include("common"),
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/c.go

@@ -0,0 +1,91 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// C lexer.
+var C = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "C",
+		Aliases:   []string{"c"},
+		Filenames: []string{"*.c", "*.h", "*.idc"},
+		MimeTypes: []string{"text/x-chdr", "text/x-csrc"},
+	},
+	Rules{
+		"whitespace": {
+			{`^#if\s+0`, CommentPreproc, Push("if0")},
+			{`^#`, CommentPreproc, Push("macro")},
+			{`^(\s*(?:/[*].*?[*]/\s*)?)(#if\s+0)`, ByGroups(UsingSelf("root"), CommentPreproc), Push("if0")},
+			{`^(\s*(?:/[*].*?[*]/\s*)?)(#)`, ByGroups(UsingSelf("root"), CommentPreproc), Push("macro")},
+			{`\n`, Text, nil},
+			{`\s+`, Text, nil},
+			{`\\\n`, Text, nil},
+			{`//(\n|[\w\W]*?[^\\]\n)`, CommentSingle, nil},
+			{`/(\\\n)?[*][\w\W]*?[*](\\\n)?/`, CommentMultiline, nil},
+			{`/(\\\n)?[*][\w\W]*`, CommentMultiline, nil},
+		},
+		"statements": {
+			{`(L?)(")`, ByGroups(LiteralStringAffix, LiteralString), Push("string")},
+			{`(L?)(')(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])(')`, ByGroups(LiteralStringAffix, LiteralStringChar, LiteralStringChar, LiteralStringChar), nil},
+			{`(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*`, LiteralNumberFloat, nil},
+			{`(\d+\.\d*|\.\d+|\d+[fF])[fF]?`, LiteralNumberFloat, nil},
+			{`0x[0-9a-fA-F]+[LlUu]*`, LiteralNumberHex, nil},
+			{`0[0-7]+[LlUu]*`, LiteralNumberOct, nil},
+			{`\d+[LlUu]*`, LiteralNumberInteger, nil},
+			{`\*/`, Error, nil},
+			{`[~!%^&*+=|?:<>/-]`, Operator, nil},
+			{`[()\[\],.]`, Punctuation, nil},
+			{Words(``, `\b`, `asm`, `auto`, `break`, `case`, `const`, `continue`, `default`, `do`, `else`, `enum`, `extern`, `for`, `goto`, `if`, `register`, `restricted`, `return`, `sizeof`, `static`, `struct`, `switch`, `typedef`, `union`, `volatile`, `while`), Keyword, nil},
+			{`(bool|int|long|float|short|double|char|unsigned|signed|void)\b`, KeywordType, nil},
+			{Words(``, `\b`, `inline`, `_inline`, `__inline`, `naked`, `restrict`, `thread`, `typename`), KeywordReserved, nil},
+			{`(__m(128i|128d|128|64))\b`, KeywordReserved, nil},
+			{Words(`__`, `\b`, `asm`, `int8`, `based`, `except`, `int16`, `stdcall`, `cdecl`, `fastcall`, `int32`, `declspec`, `finally`, `int64`, `try`, `leave`, `wchar_t`, `w64`, `unaligned`, `raise`, `noop`, `identifier`, `forceinline`, `assume`), KeywordReserved, nil},
+			{`(true|false|NULL)\b`, NameBuiltin, nil},
+			{`([a-zA-Z_]\w*)(\s*)(:)(?!:)`, ByGroups(NameLabel, Text, Punctuation), nil},
+			{`[a-zA-Z_]\w*`, Name, nil},
+		},
+		"root": {
+			Include("whitespace"),
+			{`((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;{]*)(\{)`, ByGroups(UsingSelf("root"), NameFunction, UsingSelf("root"), UsingSelf("root"), Punctuation), Push("function")},
+			{`((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;]*)(;)`, ByGroups(UsingSelf("root"), NameFunction, UsingSelf("root"), UsingSelf("root"), Punctuation), nil},
+			Default(Push("statement")),
+		},
+		"statement": {
+			Include("whitespace"),
+			Include("statements"),
+			{`[{}]`, Punctuation, nil},
+			{`;`, Punctuation, Pop(1)},
+		},
+		"function": {
+			Include("whitespace"),
+			Include("statements"),
+			{`;`, Punctuation, nil},
+			{`\{`, Punctuation, Push()},
+			{`\}`, Punctuation, Pop(1)},
+		},
+		"string": {
+			{`"`, LiteralString, Pop(1)},
+			{`\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})`, LiteralStringEscape, nil},
+			{`[^\\"\n]+`, LiteralString, nil},
+			{`\\\n`, LiteralString, nil},
+			{`\\`, LiteralString, nil},
+		},
+		"macro": {
+			{`(include)(\s*(?:/[*].*?[*]/\s*)?)([^\n]+)`, ByGroups(CommentPreproc, Text, CommentPreprocFile), nil},
+			{`[^/\n]+`, CommentPreproc, nil},
+			{`/[*](.|\n)*?[*]/`, CommentMultiline, nil},
+			{`//.*?\n`, CommentSingle, Pop(1)},
+			{`/`, CommentPreproc, nil},
+			{`(?<=\\)\n`, CommentPreproc, nil},
+			{`\n`, CommentPreproc, Pop(1)},
+		},
+		"if0": {
+			{`^\s*#if.*?(?<!\\)\n`, CommentPreproc, Push()},
+			{`^\s*#el(?:se|if).*\n`, CommentPreproc, Pop(1)},
+			{`^\s*#endif.*?(?<!\\)\n`, CommentPreproc, Pop(1)},
+			{`.*?\n`, Comment, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/capnproto.go

@@ -0,0 +1,61 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Cap'N'Proto Proto lexer.
+var CapNProto = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Cap'n Proto",
+		Aliases:   []string{"capnp"},
+		Filenames: []string{"*.capnp"},
+		MimeTypes: []string{},
+	},
+	Rules{
+		"root": {
+			{`#.*?$`, CommentSingle, nil},
+			{`@[0-9a-zA-Z]*`, NameDecorator, nil},
+			{`=`, Literal, Push("expression")},
+			{`:`, NameClass, Push("type")},
+			{`\$`, NameAttribute, Push("annotation")},
+			{`(struct|enum|interface|union|import|using|const|annotation|extends|in|of|on|as|with|from|fixed)\b`, Keyword, nil},
+			{`[\w.]+`, Name, nil},
+			{`[^#@=:$\w]+`, Text, nil},
+		},
+		"type": {
+			{`[^][=;,(){}$]+`, NameClass, nil},
+			{`[[(]`, NameClass, Push("parentype")},
+			Default(Pop(1)),
+		},
+		"parentype": {
+			{`[^][;()]+`, NameClass, nil},
+			{`[[(]`, NameClass, Push()},
+			{`[])]`, NameClass, Pop(1)},
+			Default(Pop(1)),
+		},
+		"expression": {
+			{`[^][;,(){}$]+`, Literal, nil},
+			{`[[(]`, Literal, Push("parenexp")},
+			Default(Pop(1)),
+		},
+		"parenexp": {
+			{`[^][;()]+`, Literal, nil},
+			{`[[(]`, Literal, Push()},
+			{`[])]`, Literal, Pop(1)},
+			Default(Pop(1)),
+		},
+		"annotation": {
+			{`[^][;,(){}=:]+`, NameAttribute, nil},
+			{`[[(]`, NameAttribute, Push("annexp")},
+			Default(Pop(1)),
+		},
+		"annexp": {
+			{`[^][;()]+`, NameAttribute, nil},
+			{`[[(]`, NameAttribute, Push()},
+			{`[])]`, NameAttribute, Pop(1)},
+			Default(Pop(1)),
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/ceylon.go

@@ -0,0 +1,63 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Ceylon lexer.
+var Ceylon = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Ceylon",
+		Aliases:   []string{"ceylon"},
+		Filenames: []string{"*.ceylon"},
+		MimeTypes: []string{"text/x-ceylon"},
+		DotAll:    true,
+	},
+	Rules{
+		"root": {
+			{`^(\s*(?:[a-zA-Z_][\w.\[\]]*\s+)+?)([a-zA-Z_]\w*)(\s*)(\()`, ByGroups(UsingSelf("root"), NameFunction, Text, Operator), nil},
+			{`[^\S\n]+`, Text, nil},
+			{`//.*?\n`, CommentSingle, nil},
+			{`/\*`, CommentMultiline, Push("comment")},
+			{`(shared|abstract|formal|default|actual|variable|deprecated|small|late|literal|doc|by|see|throws|optional|license|tagged|final|native|annotation|sealed)\b`, NameDecorator, nil},
+			{`(break|case|catch|continue|else|finally|for|in|if|return|switch|this|throw|try|while|is|exists|dynamic|nonempty|then|outer|assert|let)\b`, Keyword, nil},
+			{`(abstracts|extends|satisfies|super|given|of|out|assign)\b`, KeywordDeclaration, nil},
+			{`(function|value|void|new)\b`, KeywordType, nil},
+			{`(assembly|module|package)(\s+)`, ByGroups(KeywordNamespace, Text), nil},
+			{`(true|false|null)\b`, KeywordConstant, nil},
+			{`(class|interface|object|alias)(\s+)`, ByGroups(KeywordDeclaration, Text), Push("class")},
+			{`(import)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
+			{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
+			{`'\\.'|'[^\\]'|'\\\{#[0-9a-fA-F]{4}\}'`, LiteralStringChar, nil},
+			{"\".*``.*``.*\"", LiteralStringInterpol, nil},
+			{`(\.)([a-z_]\w*)`, ByGroups(Operator, NameAttribute), nil},
+			{`[a-zA-Z_]\w*:`, NameLabel, nil},
+			{`[a-zA-Z_]\w*`, Name, nil},
+			{`[~^*!%&\[\](){}<>|+=:;,./?-]`, Operator, nil},
+			{`\d{1,3}(_\d{3})+\.\d{1,3}(_\d{3})+[kMGTPmunpf]?`, LiteralNumberFloat, nil},
+			{`\d{1,3}(_\d{3})+\.[0-9]+([eE][+-]?[0-9]+)?[kMGTPmunpf]?`, LiteralNumberFloat, nil},
+			{`[0-9][0-9]*\.\d{1,3}(_\d{3})+[kMGTPmunpf]?`, LiteralNumberFloat, nil},
+			{`[0-9][0-9]*\.[0-9]+([eE][+-]?[0-9]+)?[kMGTPmunpf]?`, LiteralNumberFloat, nil},
+			{`#([0-9a-fA-F]{4})(_[0-9a-fA-F]{4})+`, LiteralNumberHex, nil},
+			{`#[0-9a-fA-F]+`, LiteralNumberHex, nil},
+			{`\$([01]{4})(_[01]{4})+`, LiteralNumberBin, nil},
+			{`\$[01]+`, LiteralNumberBin, nil},
+			{`\d{1,3}(_\d{3})+[kMGTP]?`, LiteralNumberInteger, nil},
+			{`[0-9]+[kMGTP]?`, LiteralNumberInteger, nil},
+			{`\n`, Text, nil},
+		},
+		"class": {
+			{`[A-Za-z_]\w*`, NameClass, Pop(1)},
+		},
+		"import": {
+			{`[a-z][\w.]*`, NameNamespace, Pop(1)},
+		},
+		"comment": {
+			{`[^*/]`, CommentMultiline, nil},
+			{`/\*`, CommentMultiline, Push()},
+			{`\*/`, CommentMultiline, Pop(1)},
+			{`[*/]`, CommentMultiline, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/cfengine3.go

@@ -0,0 +1,56 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Cfengine3 lexer.
+var Cfengine3 = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "CFEngine3",
+		Aliases:   []string{"cfengine3", "cf3"},
+		Filenames: []string{"*.cf"},
+		MimeTypes: []string{},
+	},
+	Rules{
+		"root": {
+			{`#.*?\n`, Comment, nil},
+			{`(body)(\s+)(\S+)(\s+)(control)`, ByGroups(Keyword, Text, Keyword, Text, Keyword), nil},
+			{`(body|bundle)(\s+)(\S+)(\s+)(\w+)(\()`, ByGroups(Keyword, Text, Keyword, Text, NameFunction, Punctuation), Push("arglist")},
+			{`(body|bundle)(\s+)(\S+)(\s+)(\w+)`, ByGroups(Keyword, Text, Keyword, Text, NameFunction), nil},
+			{`(")([^"]+)(")(\s+)(string|slist|int|real)(\s*)(=>)(\s*)`, ByGroups(Punctuation, NameVariable, Punctuation, Text, KeywordType, Text, Operator, Text), nil},
+			{`(\S+)(\s*)(=>)(\s*)`, ByGroups(KeywordReserved, Text, Operator, Text), nil},
+			{`"`, LiteralString, Push("string")},
+			{`(\w+)(\()`, ByGroups(NameFunction, Punctuation), nil},
+			{`([\w.!&|()]+)(::)`, ByGroups(NameClass, Punctuation), nil},
+			{`(\w+)(:)`, ByGroups(KeywordDeclaration, Punctuation), nil},
+			{`@[{(][^)}]+[})]`, NameVariable, nil},
+			{`[(){},;]`, Punctuation, nil},
+			{`=>`, Operator, nil},
+			{`->`, Operator, nil},
+			{`\d+\.\d+`, LiteralNumberFloat, nil},
+			{`\d+`, LiteralNumberInteger, nil},
+			{`\w+`, NameFunction, nil},
+			{`\s+`, Text, nil},
+		},
+		"string": {
+			{`\$[{(]`, LiteralStringInterpol, Push("interpol")},
+			{`\\.`, LiteralStringEscape, nil},
+			{`"`, LiteralString, Pop(1)},
+			{`\n`, LiteralString, nil},
+			{`.`, LiteralString, nil},
+		},
+		"interpol": {
+			{`\$[{(]`, LiteralStringInterpol, Push()},
+			{`[})]`, LiteralStringInterpol, Pop(1)},
+			{`[^${()}]+`, LiteralStringInterpol, nil},
+		},
+		"arglist": {
+			{`\)`, Punctuation, Pop(1)},
+			{`,`, Punctuation, nil},
+			{`\w+`, NameVariable, nil},
+			{`\s+`, Text, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/chaiscript.go

@@ -0,0 +1,63 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Chaiscript lexer.
+var Chaiscript = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "ChaiScript",
+		Aliases:   []string{"chai", "chaiscript"},
+		Filenames: []string{"*.chai"},
+		MimeTypes: []string{"text/x-chaiscript", "application/x-chaiscript"},
+		DotAll:    true,
+	},
+	Rules{
+		"commentsandwhitespace": {
+			{`\s+`, Text, nil},
+			{`//.*?\n`, CommentSingle, nil},
+			{`/\*.*?\*/`, CommentMultiline, nil},
+			{`^\#.*?\n`, CommentSingle, nil},
+		},
+		"slashstartsregex": {
+			Include("commentsandwhitespace"),
+			{`/(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/([gim]+\b|\B)`, LiteralStringRegex, Pop(1)},
+			{`(?=/)`, Text, Push("#pop", "badregex")},
+			Default(Pop(1)),
+		},
+		"badregex": {
+			{`\n`, Text, Pop(1)},
+		},
+		"root": {
+			Include("commentsandwhitespace"),
+			{`\n`, Text, nil},
+			{`[^\S\n]+`, Text, nil},
+			{`\+\+|--|~|&&|\?|:|\|\||\\(?=\n)|\.\.(<<|>>>?|==?|!=?|[-<>+*%&|^/])=?`, Operator, Push("slashstartsregex")},
+			{`[{(\[;,]`, Punctuation, Push("slashstartsregex")},
+			{`[})\].]`, Punctuation, nil},
+			{`[=+\-*/]`, Operator, nil},
+			{`(for|in|while|do|break|return|continue|if|else|throw|try|catch)\b`, Keyword, Push("slashstartsregex")},
+			{`(var)\b`, KeywordDeclaration, Push("slashstartsregex")},
+			{`(attr|def|fun)\b`, KeywordReserved, nil},
+			{`(true|false)\b`, KeywordConstant, nil},
+			{`(eval|throw)\b`, NameBuiltin, nil},
+			{"`\\S+`", NameBuiltin, nil},
+			{`[$a-zA-Z_]\w*`, NameOther, nil},
+			{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
+			{`0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`"`, LiteralStringDouble, Push("dqstring")},
+			{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
+		},
+		"dqstring": {
+			{`\$\{[^"}]+?\}`, LiteralStringInterpol, nil},
+			{`\$`, LiteralStringDouble, nil},
+			{`\\\\`, LiteralStringDouble, nil},
+			{`\\"`, LiteralStringDouble, nil},
+			{`[^\\"$]+`, LiteralStringDouble, nil},
+			{`"`, LiteralStringDouble, Pop(1)},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/cheetah.go

@@ -0,0 +1,37 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+	. "github.com/alecthomas/chroma/lexers/p" // nolint
+)
+
+// Cheetah lexer.
+var Cheetah = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Cheetah",
+		Aliases:   []string{"cheetah", "spitfire"},
+		Filenames: []string{"*.tmpl", "*.spt"},
+		MimeTypes: []string{"application/x-cheetah", "application/x-spitfire"},
+	},
+	Rules{
+		"root": {
+			{`(##[^\n]*)$`, ByGroups(Comment), nil},
+			{`#[*](.|\n)*?[*]#`, Comment, nil},
+			{`#end[^#\n]*(?:#|$)`, CommentPreproc, nil},
+			{`#slurp$`, CommentPreproc, nil},
+			{`(#[a-zA-Z]+)([^#\n]*)(#|$)`, ByGroups(CommentPreproc, Using(Python), CommentPreproc), nil},
+			{`(\$)([a-zA-Z_][\w.]*\w)`, ByGroups(CommentPreproc, Using(Python)), nil},
+			{`(\$\{!?)(.*?)(\})(?s)`, ByGroups(CommentPreproc, Using(Python), CommentPreproc), nil},
+			{`(?sx)
+                (.+?)               # anything, followed by:
+                (?:
+                 (?=\#[#a-zA-Z]*) | # an eval comment
+                 (?=\$[a-zA-Z_{]) | # a substitution
+                 \Z                 # end of string
+                )
+            `, Other, nil},
+			{`\s+`, Text, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/cl.go

@@ -0,0 +1,306 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+var (
+	clBuiltinFunctions = []string{
+		"<", "<=", "=", ">", ">=", "-", "/", "/=", "*", "+", "1-", "1+",
+		"abort", "abs", "acons", "acos", "acosh", "add-method", "adjoin",
+		"adjustable-array-p", "adjust-array", "allocate-instance",
+		"alpha-char-p", "alphanumericp", "append", "apply", "apropos",
+		"apropos-list", "aref", "arithmetic-error-operands",
+		"arithmetic-error-operation", "array-dimension", "array-dimensions",
+		"array-displacement", "array-element-type", "array-has-fill-pointer-p",
+		"array-in-bounds-p", "arrayp", "array-rank", "array-row-major-index",
+		"array-total-size", "ash", "asin", "asinh", "assoc", "assoc-if",
+		"assoc-if-not", "atan", "atanh", "atom", "bit", "bit-and", "bit-andc1",
+		"bit-andc2", "bit-eqv", "bit-ior", "bit-nand", "bit-nor", "bit-not",
+		"bit-orc1", "bit-orc2", "bit-vector-p", "bit-xor", "boole",
+		"both-case-p", "boundp", "break", "broadcast-stream-streams",
+		"butlast", "byte", "byte-position", "byte-size", "caaaar", "caaadr",
+		"caaar", "caadar", "caaddr", "caadr", "caar", "cadaar", "cadadr",
+		"cadar", "caddar", "cadddr", "caddr", "cadr", "call-next-method", "car",
+		"cdaaar", "cdaadr", "cdaar", "cdadar", "cdaddr", "cdadr", "cdar",
+		"cddaar", "cddadr", "cddar", "cdddar", "cddddr", "cdddr", "cddr", "cdr",
+		"ceiling", "cell-error-name", "cerror", "change-class", "char", "char<",
+		"char<=", "char=", "char>", "char>=", "char/=", "character",
+		"characterp", "char-code", "char-downcase", "char-equal",
+		"char-greaterp", "char-int", "char-lessp", "char-name",
+		"char-not-equal", "char-not-greaterp", "char-not-lessp", "char-upcase",
+		"cis", "class-name", "class-of", "clear-input", "clear-output",
+		"close", "clrhash", "code-char", "coerce", "compile",
+		"compiled-function-p", "compile-file", "compile-file-pathname",
+		"compiler-macro-function", "complement", "complex", "complexp",
+		"compute-applicable-methods", "compute-restarts", "concatenate",
+		"concatenated-stream-streams", "conjugate", "cons", "consp",
+		"constantly", "constantp", "continue", "copy-alist", "copy-list",
+		"copy-pprint-dispatch", "copy-readtable", "copy-seq", "copy-structure",
+		"copy-symbol", "copy-tree", "cos", "cosh", "count", "count-if",
+		"count-if-not", "decode-float", "decode-universal-time", "delete",
+		"delete-duplicates", "delete-file", "delete-if", "delete-if-not",
+		"delete-package", "denominator", "deposit-field", "describe",
+		"describe-object", "digit-char", "digit-char-p", "directory",
+		"directory-namestring", "disassemble", "documentation", "dpb",
+		"dribble", "echo-stream-input-stream", "echo-stream-output-stream",
+		"ed", "eighth", "elt", "encode-universal-time", "endp",
+		"enough-namestring", "ensure-directories-exist",
+		"ensure-generic-function", "eq", "eql", "equal", "equalp", "error",
+		"eval", "evenp", "every", "exp", "export", "expt", "fboundp",
+		"fceiling", "fdefinition", "ffloor", "fifth", "file-author",
+		"file-error-pathname", "file-length", "file-namestring",
+		"file-position", "file-string-length", "file-write-date",
+		"fill", "fill-pointer", "find", "find-all-symbols", "find-class",
+		"find-if", "find-if-not", "find-method", "find-package", "find-restart",
+		"find-symbol", "finish-output", "first", "float", "float-digits",
+		"floatp", "float-precision", "float-radix", "float-sign", "floor",
+		"fmakunbound", "force-output", "format", "fourth", "fresh-line",
+		"fround", "ftruncate", "funcall", "function-keywords",
+		"function-lambda-expression", "functionp", "gcd", "gensym", "gentemp",
+		"get", "get-decoded-time", "get-dispatch-macro-character", "getf",
+		"gethash", "get-internal-real-time", "get-internal-run-time",
+		"get-macro-character", "get-output-stream-string", "get-properties",
+		"get-setf-expansion", "get-universal-time", "graphic-char-p",
+		"hash-table-count", "hash-table-p", "hash-table-rehash-size",
+		"hash-table-rehash-threshold", "hash-table-size", "hash-table-test",
+		"host-namestring", "identity", "imagpart", "import",
+		"initialize-instance", "input-stream-p", "inspect",
+		"integer-decode-float", "integer-length", "integerp",
+		"interactive-stream-p", "intern", "intersection",
+		"invalid-method-error", "invoke-debugger", "invoke-restart",
+		"invoke-restart-interactively", "isqrt", "keywordp", "last", "lcm",
+		"ldb", "ldb-test", "ldiff", "length", "lisp-implementation-type",
+		"lisp-implementation-version", "list", "list*", "list-all-packages",
+		"listen", "list-length", "listp", "load",
+		"load-logical-pathname-translations", "log", "logand", "logandc1",
+		"logandc2", "logbitp", "logcount", "logeqv", "logical-pathname",
+		"logical-pathname-translations", "logior", "lognand", "lognor",
+		"lognot", "logorc1", "logorc2", "logtest", "logxor", "long-site-name",
+		"lower-case-p", "machine-instance", "machine-type", "machine-version",
+		"macroexpand", "macroexpand-1", "macro-function", "make-array",
+		"make-broadcast-stream", "make-concatenated-stream", "make-condition",
+		"make-dispatch-macro-character", "make-echo-stream", "make-hash-table",
+		"make-instance", "make-instances-obsolete", "make-list",
+		"make-load-form", "make-load-form-saving-slots", "make-package",
+		"make-pathname", "make-random-state", "make-sequence", "make-string",
+		"make-string-input-stream", "make-string-output-stream", "make-symbol",
+		"make-synonym-stream", "make-two-way-stream", "makunbound", "map",
+		"mapc", "mapcan", "mapcar", "mapcon", "maphash", "map-into", "mapl",
+		"maplist", "mask-field", "max", "member", "member-if", "member-if-not",
+		"merge", "merge-pathnames", "method-combination-error",
+		"method-qualifiers", "min", "minusp", "mismatch", "mod",
+		"muffle-warning", "name-char", "namestring", "nbutlast", "nconc",
+		"next-method-p", "nintersection", "ninth", "no-applicable-method",
+		"no-next-method", "not", "notany", "notevery", "nreconc", "nreverse",
+		"nset-difference", "nset-exclusive-or", "nstring-capitalize",
+		"nstring-downcase", "nstring-upcase", "nsublis", "nsubst", "nsubst-if",
+		"nsubst-if-not", "nsubstitute", "nsubstitute-if", "nsubstitute-if-not",
+		"nth", "nthcdr", "null", "numberp", "numerator", "nunion", "oddp",
+		"open", "open-stream-p", "output-stream-p", "package-error-package",
+		"package-name", "package-nicknames", "packagep",
+		"package-shadowing-symbols", "package-used-by-list", "package-use-list",
+		"pairlis", "parse-integer", "parse-namestring", "pathname",
+		"pathname-device", "pathname-directory", "pathname-host",
+		"pathname-match-p", "pathname-name", "pathnamep", "pathname-type",
+		"pathname-version", "peek-char", "phase", "plusp", "position",
+		"position-if", "position-if-not", "pprint", "pprint-dispatch",
+		"pprint-fill", "pprint-indent", "pprint-linear", "pprint-newline",
+		"pprint-tab", "pprint-tabular", "prin1", "prin1-to-string", "princ",
+		"princ-to-string", "print", "print-object", "probe-file", "proclaim",
+		"provide", "random", "random-state-p", "rassoc", "rassoc-if",
+		"rassoc-if-not", "rational", "rationalize", "rationalp", "read",
+		"read-byte", "read-char", "read-char-no-hang", "read-delimited-list",
+		"read-from-string", "read-line", "read-preserving-whitespace",
+		"read-sequence", "readtable-case", "readtablep", "realp", "realpart",
+		"reduce", "reinitialize-instance", "rem", "remhash", "remove",
+		"remove-duplicates", "remove-if", "remove-if-not", "remove-method",
+		"remprop", "rename-file", "rename-package", "replace", "require",
+		"rest", "restart-name", "revappend", "reverse", "room", "round",
+		"row-major-aref", "rplaca", "rplacd", "sbit", "scale-float", "schar",
+		"search", "second", "set", "set-difference",
+		"set-dispatch-macro-character", "set-exclusive-or",
+		"set-macro-character", "set-pprint-dispatch", "set-syntax-from-char",
+		"seventh", "shadow", "shadowing-import", "shared-initialize",
+		"short-site-name", "signal", "signum", "simple-bit-vector-p",
+		"simple-condition-format-arguments", "simple-condition-format-control",
+		"simple-string-p", "simple-vector-p", "sin", "sinh", "sixth", "sleep",
+		"slot-boundp", "slot-exists-p", "slot-makunbound", "slot-missing",
+		"slot-unbound", "slot-value", "software-type", "software-version",
+		"some", "sort", "special-operator-p", "sqrt", "stable-sort",
+		"standard-char-p", "store-value", "stream-element-type",
+		"stream-error-stream", "stream-external-format", "streamp", "string",
+		"string<", "string<=", "string=", "string>", "string>=", "string/=",
+		"string-capitalize", "string-downcase", "string-equal",
+		"string-greaterp", "string-left-trim", "string-lessp",
+		"string-not-equal", "string-not-greaterp", "string-not-lessp",
+		"stringp", "string-right-trim", "string-trim", "string-upcase",
+		"sublis", "subseq", "subsetp", "subst", "subst-if", "subst-if-not",
+		"substitute", "substitute-if", "substitute-if-not", "subtypep", "svref",
+		"sxhash", "symbol-function", "symbol-name", "symbolp", "symbol-package",
+		"symbol-plist", "symbol-value", "synonym-stream-symbol", "syntax:",
+		"tailp", "tan", "tanh", "tenth", "terpri", "third",
+		"translate-logical-pathname", "translate-pathname", "tree-equal",
+		"truename", "truncate", "two-way-stream-input-stream",
+		"two-way-stream-output-stream", "type-error-datum",
+		"type-error-expected-type", "type-of", "typep", "unbound-slot-instance",
+		"unexport", "unintern", "union", "unread-char", "unuse-package",
+		"update-instance-for-different-class",
+		"update-instance-for-redefined-class", "upgraded-array-element-type",
+		"upgraded-complex-part-type", "upper-case-p", "use-package",
+		"user-homedir-pathname", "use-value", "values", "values-list", "vector",
+		"vectorp", "vector-pop", "vector-push", "vector-push-extend", "warn",
+		"wild-pathname-p", "write", "write-byte", "write-char", "write-line",
+		"write-sequence", "write-string", "write-to-string", "yes-or-no-p",
+		"y-or-n-p", "zerop",
+	}
+
+	clSpecialForms = []string{
+		"block", "catch", "declare", "eval-when", "flet", "function", "go", "if",
+		"labels", "lambda", "let", "let*", "load-time-value", "locally", "macrolet",
+		"multiple-value-call", "multiple-value-prog1", "progn", "progv", "quote",
+		"return-from", "setq", "symbol-macrolet", "tagbody", "the", "throw",
+		"unwind-protect",
+	}
+
+	clMacros = []string{
+		"and", "assert", "call-method", "case", "ccase", "check-type", "cond",
+		"ctypecase", "decf", "declaim", "defclass", "defconstant", "defgeneric",
+		"define-compiler-macro", "define-condition", "define-method-combination",
+		"define-modify-macro", "define-setf-expander", "define-symbol-macro",
+		"defmacro", "defmethod", "defpackage", "defparameter", "defsetf",
+		"defstruct", "deftype", "defun", "defvar", "destructuring-bind", "do",
+		"do*", "do-all-symbols", "do-external-symbols", "dolist", "do-symbols",
+		"dotimes", "ecase", "etypecase", "formatter", "handler-bind",
+		"handler-case", "ignore-errors", "incf", "in-package", "lambda", "loop",
+		"loop-finish", "make-method", "multiple-value-bind", "multiple-value-list",
+		"multiple-value-setq", "nth-value", "or", "pop",
+		"pprint-exit-if-list-exhausted", "pprint-logical-block", "pprint-pop",
+		"print-unreadable-object", "prog", "prog*", "prog1", "prog2", "psetf",
+		"psetq", "push", "pushnew", "remf", "restart-bind", "restart-case",
+		"return", "rotatef", "setf", "shiftf", "step", "time", "trace", "typecase",
+		"unless", "untrace", "when", "with-accessors", "with-compilation-unit",
+		"with-condition-restarts", "with-hash-table-iterator",
+		"with-input-from-string", "with-open-file", "with-open-stream",
+		"with-output-to-string", "with-package-iterator", "with-simple-restart",
+		"with-slots", "with-standard-io-syntax",
+	}
+
+	clLambdaListKeywords = []string{
+		"&allow-other-keys", "&aux", "&body", "&environment", "&key", "&optional",
+		"&rest", "&whole",
+	}
+
+	clDeclarations = []string{
+		"dynamic-extent", "ignore", "optimize", "ftype", "inline", "special",
+		"ignorable", "notinline", "type",
+	}
+
+	clBuiltinTypes = []string{
+		"atom", "boolean", "base-char", "base-string", "bignum", "bit",
+		"compiled-function", "extended-char", "fixnum", "keyword", "nil",
+		"signed-byte", "short-float", "single-float", "double-float", "long-float",
+		"simple-array", "simple-base-string", "simple-bit-vector", "simple-string",
+		"simple-vector", "standard-char", "unsigned-byte",
+
+		// Condition Types
+		"arithmetic-error", "cell-error", "condition", "control-error",
+		"division-by-zero", "end-of-file", "error", "file-error",
+		"floating-point-inexact", "floating-point-overflow",
+		"floating-point-underflow", "floating-point-invalid-operation",
+		"parse-error", "package-error", "print-not-readable", "program-error",
+		"reader-error", "serious-condition", "simple-condition", "simple-error",
+		"simple-type-error", "simple-warning", "stream-error", "storage-condition",
+		"style-warning", "type-error", "unbound-variable", "unbound-slot",
+		"undefined-function", "warning",
+	}
+
+	clBuiltinClasses = []string{
+		"array", "broadcast-stream", "bit-vector", "built-in-class", "character",
+		"class", "complex", "concatenated-stream", "cons", "echo-stream",
+		"file-stream", "float", "function", "generic-function", "hash-table",
+		"integer", "list", "logical-pathname", "method-combination", "method",
+		"null", "number", "package", "pathname", "ratio", "rational", "readtable",
+		"real", "random-state", "restart", "sequence", "standard-class",
+		"standard-generic-function", "standard-method", "standard-object",
+		"string-stream", "stream", "string", "structure-class", "structure-object",
+		"symbol", "synonym-stream", "t", "two-way-stream", "vector",
+	}
+)
+
+// Common Lisp lexer.
+var CommonLisp = internal.Register(TypeRemappingLexer(MustNewLexer(
+	&Config{
+		Name:            "Common Lisp",
+		Aliases:         []string{"common-lisp", "cl", "lisp"},
+		Filenames:       []string{"*.cl", "*.lisp"},
+		MimeTypes:       []string{"text/x-common-lisp"},
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			Default(Push("body")),
+		},
+		"multiline-comment": {
+			{`#\|`, CommentMultiline, Push()},
+			{`\|#`, CommentMultiline, Pop(1)},
+			{`[^|#]+`, CommentMultiline, nil},
+			{`[|#]`, CommentMultiline, nil},
+		},
+		"commented-form": {
+			{`\(`, CommentPreproc, Push()},
+			{`\)`, CommentPreproc, Pop(1)},
+			{`[^()]+`, CommentPreproc, nil},
+		},
+		"body": {
+			{`\s+`, Text, nil},
+			{`;.*$`, CommentSingle, nil},
+			{`#\|`, CommentMultiline, Push("multiline-comment")},
+			{`#\d*Y.*$`, CommentSpecial, nil},
+			{`"(\\.|\\\n|[^"\\])*"`, LiteralString, nil},
+			{`:(\|[^|]+\||(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~])(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~]|[#.:])*)`, LiteralStringSymbol, nil},
+			{`::(\|[^|]+\||(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~])(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~]|[#.:])*)`, LiteralStringSymbol, nil},
+			{`:#(\|[^|]+\||(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~])(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~]|[#.:])*)`, LiteralStringSymbol, nil},
+			{`'(\|[^|]+\||(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~])(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~]|[#.:])*)`, LiteralStringSymbol, nil},
+			{`'`, Operator, nil},
+			{"`", Operator, nil},
+			{"[-+]?\\d+\\.?(?=[ \"()\\'\\n,;`])", LiteralNumberInteger, nil},
+			{"[-+]?\\d+/\\d+(?=[ \"()\\'\\n,;`])", LiteralNumber, nil},
+			{"[-+]?(\\d*\\.\\d+([defls][-+]?\\d+)?|\\d+(\\.\\d*)?[defls][-+]?\\d+)(?=[ \"()\\'\\n,;`])", LiteralNumberFloat, nil},
+			{"#\\\\.(?=[ \"()\\'\\n,;`])", LiteralStringChar, nil},
+			{`#\\(\|[^|]+\||(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~])(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~]|[#.:])*)`, LiteralStringChar, nil},
+			{`#\(`, Operator, Push("body")},
+			{`#\d*\*[01]*`, LiteralOther, nil},
+			{`#:(\|[^|]+\||(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~])(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~]|[#.:])*)`, LiteralStringSymbol, nil},
+			{`#[.,]`, Operator, nil},
+			{`#\'`, NameFunction, nil},
+			{`#b[+-]?[01]+(/[01]+)?`, LiteralNumberBin, nil},
+			{`#o[+-]?[0-7]+(/[0-7]+)?`, LiteralNumberOct, nil},
+			{`#x[+-]?[0-9a-f]+(/[0-9a-f]+)?`, LiteralNumberHex, nil},
+			{`#\d+r[+-]?[0-9a-z]+(/[0-9a-z]+)?`, LiteralNumber, nil},
+			{`(#c)(\()`, ByGroups(LiteralNumber, Punctuation), Push("body")},
+			{`(#\d+a)(\()`, ByGroups(LiteralOther, Punctuation), Push("body")},
+			{`(#s)(\()`, ByGroups(LiteralOther, Punctuation), Push("body")},
+			{`#p?"(\\.|[^"])*"`, LiteralOther, nil},
+			{`#\d+=`, Operator, nil},
+			{`#\d+#`, Operator, nil},
+			{"#+nil(?=[ \"()\\'\\n,;`])\\s*\\(", CommentPreproc, Push("commented-form")},
+			{`#[+-]`, Operator, nil},
+			{`(,@|,|\.)`, Operator, nil},
+			{"(t|nil)(?=[ \"()\\'\\n,;`])", NameConstant, nil},
+			{`\*(\|[^|]+\||(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~])(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~]|[#.:])*)\*`, NameVariableGlobal, nil},
+			{`(\|[^|]+\||(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~])(?:\\.|[\w!$%&*+-/<=>?@\[\]^{}~]|[#.:])*)`, NameVariable, nil},
+			{`\(`, Punctuation, Push("body")},
+			{`\)`, Punctuation, Pop(1)},
+		},
+	},
+), TypeMapping{
+	{NameVariable, NameFunction, clBuiltinFunctions},
+	{NameVariable, Keyword, clSpecialForms},
+	{NameVariable, NameBuiltin, clMacros},
+	{NameVariable, Keyword, clLambdaListKeywords},
+	{NameVariable, Keyword, clDeclarations},
+	{NameVariable, KeywordType, clBuiltinTypes},
+	{NameVariable, NameClass, clBuiltinClasses},
+}))

vendor/github.com/alecthomas/chroma/lexers/c/clojure.go

@@ -0,0 +1,38 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Clojure lexer.
+var Clojure = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Clojure",
+		Aliases:   []string{"clojure", "clj"},
+		Filenames: []string{"*.clj"},
+		MimeTypes: []string{"text/x-clojure", "application/x-clojure"},
+	},
+	Rules{
+		"root": {
+			{`;.*$`, CommentSingle, nil},
+			{`[,\s]+`, Text, nil},
+			{`-?\d+\.\d+`, LiteralNumberFloat, nil},
+			{`-?\d+`, LiteralNumberInteger, nil},
+			{`0x-?[abcdef\d]+`, LiteralNumberHex, nil},
+			{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
+			{`'(?!#)[\w!$%*+<=>?/.#-]+`, LiteralStringSymbol, nil},
+			{`\\(.|[a-z]+)`, LiteralStringChar, nil},
+			{`::?#?(?!#)[\w!$%*+<=>?/.#-]+`, LiteralStringSymbol, nil},
+			{"~@|[`\\'#^~&@]", Operator, nil},
+			{Words(``, ` `, `.`, `def`, `do`, `fn`, `if`, `let`, `new`, `quote`, `var`, `loop`), Keyword, nil},
+			{Words(``, ` `, `def-`, `defn`, `defn-`, `defmacro`, `defmulti`, `defmethod`, `defstruct`, `defonce`, `declare`, `definline`, `definterface`, `defprotocol`, `defrecord`, `deftype`, `defproject`, `ns`), KeywordDeclaration, nil},
+			{Words(``, ` `, `*`, `+`, `-`, `->`, `/`, `<`, `<=`, `=`, `==`, `>`, `>=`, `..`, `accessor`, `agent`, `agent-errors`, `aget`, `alength`, `all-ns`, `alter`, `and`, `append-child`, `apply`, `array-map`, `aset`, `aset-boolean`, `aset-byte`, `aset-char`, `aset-double`, `aset-float`, `aset-int`, `aset-long`, `aset-short`, `assert`, `assoc`, `await`, `await-for`, `bean`, `binding`, `bit-and`, `bit-not`, `bit-or`, `bit-shift-left`, `bit-shift-right`, `bit-xor`, `boolean`, `branch?`, `butlast`, `byte`, `cast`, `char`, `children`, `class`, `clear-agent-errors`, `comment`, `commute`, `comp`, `comparator`, `complement`, `concat`, `conj`, `cons`, `constantly`, `cond`, `if-not`, `construct-proxy`, `contains?`, `count`, `create-ns`, `create-struct`, `cycle`, `dec`, `deref`, `difference`, `disj`, `dissoc`, `distinct`, `doall`, `doc`, `dorun`, `doseq`, `dosync`, `dotimes`, `doto`, `double`, `down`, `drop`, `drop-while`, `edit`, `end?`, `ensure`, `eval`, `every?`, `false?`, `ffirst`, `file-seq`, `filter`, `find`, `find-doc`, `find-ns`, `find-var`, `first`, `float`, `flush`, `for`, `fnseq`, `frest`, `gensym`, `get-proxy-class`, `get`, `hash-map`, `hash-set`, `identical?`, `identity`, `if-let`, `import`, `in-ns`, `inc`, `index`, `insert-child`, `insert-left`, `insert-right`, `inspect-table`, `inspect-tree`, `instance?`, `int`, `interleave`, `intersection`, `into`, `into-array`, `iterate`, `join`, `key`, `keys`, `keyword`, `keyword?`, `last`, `lazy-cat`, `lazy-cons`, `left`, `lefts`, `line-seq`, `list*`, `list`, `load`, `load-file`, `locking`, `long`, `loop`, `macroexpand`, `macroexpand-1`, `make-array`, `make-node`, `map`, `map-invert`, `map?`, `mapcat`, `max`, `max-key`, `memfn`, `merge`, `merge-with`, `meta`, `min`, `min-key`, `name`, `namespace`, `neg?`, `new`, `newline`, `next`, `nil?`, `node`, `not`, `not-any?`, `not-every?`, `not=`, `ns-imports`, `ns-interns`, `ns-map`, `ns-name`, `ns-publics`, `ns-refers`, `ns-resolve`, `ns-unmap`, `nth`, `nthrest`, `or`, `parse`, `partial`, `path`, `peek`, `pop`, `pos?`, `pr`, `pr-str`, `print`, `print-str`, `println`, `println-str`, `prn`, `prn-str`, `project`, `proxy`, `proxy-mappings`, `quot`, `rand`, `rand-int`, `range`, `re-find`, `re-groups`, `re-matcher`, `re-matches`, `re-pattern`, `re-seq`, `read`, `read-line`, `reduce`, `ref`, `ref-set`, `refer`, `rem`, `remove`, `remove-method`, `remove-ns`, `rename`, `rename-keys`, `repeat`, `replace`, `replicate`, `resolve`, `rest`, `resultset-seq`, `reverse`, `rfirst`, `right`, `rights`, `root`, `rrest`, `rseq`, `second`, `select`, `select-keys`, `send`, `send-off`, `seq`, `seq-zip`, `seq?`, `set`, `short`, `slurp`, `some`, `sort`, `sort-by`, `sorted-map`, `sorted-map-by`, `sorted-set`, `special-symbol?`, `split-at`, `split-with`, `str`, `string?`, `struct`, `struct-map`, `subs`, `subvec`, `symbol`, `symbol?`, `sync`, `take`, `take-nth`, `take-while`, `test`, `time`, `to-array`, `to-array-2d`, `tree-seq`, `true?`, `union`, `up`, `update-proxy`, `val`, `vals`, `var-get`, `var-set`, `var?`, `vector`, `vector-zip`, `vector?`, `when`, `when-first`, `when-let`, `when-not`, `with-local-vars`, `with-meta`, `with-open`, `with-out-str`, `xml-seq`, `xml-zip`, `zero?`, `zipmap`, `zipper`), NameBuiltin, nil},
+			{`(?<=\()(?!#)[\w!$%*+<=>?/.#-]+`, NameFunction, nil},
+			{`(?!#)[\w!$%*+<=>?/.#-]+`, NameVariable, nil},
+			{`(\[|\])`, Punctuation, nil},
+			{`(\{|\})`, Punctuation, nil},
+			{`(\(|\))`, Punctuation, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/cmake.go

@@ -0,0 +1,44 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Cmake lexer.
+var Cmake = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "CMake",
+		Aliases:   []string{"cmake"},
+		Filenames: []string{"*.cmake", "CMakeLists.txt"},
+		MimeTypes: []string{"text/x-cmake"},
+	},
+	Rules{
+		"root": {
+			{`\b(\w+)([ \t]*)(\()`, ByGroups(NameBuiltin, Text, Punctuation), Push("args")},
+			Include("keywords"),
+			Include("ws"),
+		},
+		"args": {
+			{`\(`, Punctuation, Push()},
+			{`\)`, Punctuation, Pop(1)},
+			{`(\$\{)(.+?)(\})`, ByGroups(Operator, NameVariable, Operator), nil},
+			{`(\$ENV\{)(.+?)(\})`, ByGroups(Operator, NameVariable, Operator), nil},
+			{`(\$<)(.+?)(>)`, ByGroups(Operator, NameVariable, Operator), nil},
+			{`(?s)".*?"`, LiteralStringDouble, nil},
+			{`\\\S+`, LiteralString, nil},
+			{`[^)$"# \t\n]+`, LiteralString, nil},
+			{`\n`, Text, nil},
+			Include("keywords"),
+			Include("ws"),
+		},
+		"string": {},
+		"keywords": {
+			{`\b(WIN32|UNIX|APPLE|CYGWIN|BORLAND|MINGW|MSVC|MSVC_IDE|MSVC60|MSVC70|MSVC71|MSVC80|MSVC90)\b`, Keyword, nil},
+		},
+		"ws": {
+			{`[ \t]+`, Text, nil},
+			{`#.*\n`, Comment, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/cobol.go

@@ -0,0 +1,51 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Cobol lexer.
+var Cobol = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "COBOL",
+		Aliases:         []string{"cobol"},
+		Filenames:       []string{"*.cob", "*.COB", "*.cpy", "*.CPY"},
+		MimeTypes:       []string{"text/x-cobol"},
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			Include("comment"),
+			Include("strings"),
+			Include("core"),
+			Include("nums"),
+			{`[a-z0-9]([\w\-]*[a-z0-9]+)?`, NameVariable, nil},
+			{`[ \t]+`, Text, nil},
+		},
+		"comment": {
+			{`(^.{6}[*/].*\n|^.{6}|\*>.*\n)`, Comment, nil},
+		},
+		"core": {
+			{`(^|(?<=[^\w\-]))(ALL\s+)?((ZEROES)|(HIGH-VALUE|LOW-VALUE|QUOTE|SPACE|ZERO)(S)?)\s*($|(?=[^\w\-]))`, NameConstant, nil},
+			{Words(`(^|(?<=[^\w\-]))`, `\s*($|(?=[^\w\-]))`, `ACCEPT`, `ADD`, `ALLOCATE`, `CALL`, `CANCEL`, `CLOSE`, `COMPUTE`, `CONFIGURATION`, `CONTINUE`, `DATA`, `DELETE`, `DISPLAY`, `DIVIDE`, `DIVISION`, `ELSE`, `END`, `END-ACCEPT`, `END-ADD`, `END-CALL`, `END-COMPUTE`, `END-DELETE`, `END-DISPLAY`, `END-DIVIDE`, `END-EVALUATE`, `END-IF`, `END-MULTIPLY`, `END-OF-PAGE`, `END-PERFORM`, `END-READ`, `END-RETURN`, `END-REWRITE`, `END-SEARCH`, `END-START`, `END-STRING`, `END-SUBTRACT`, `END-UNSTRING`, `END-WRITE`, `ENVIRONMENT`, `EVALUATE`, `EXIT`, `FD`, `FILE`, `FILE-CONTROL`, `FOREVER`, `FREE`, `GENERATE`, `GO`, `GOBACK`, `IDENTIFICATION`, `IF`, `INITIALIZE`, `INITIATE`, `INPUT-OUTPUT`, `INSPECT`, `INVOKE`, `I-O-CONTROL`, `LINKAGE`, `LOCAL-STORAGE`, `MERGE`, `MOVE`, `MULTIPLY`, `OPEN`, `PERFORM`, `PROCEDURE`, `PROGRAM-ID`, `RAISE`, `READ`, `RELEASE`, `RESUME`, `RETURN`, `REWRITE`, `SCREEN`, `SD`, `SEARCH`, `SECTION`, `SET`, `SORT`, `START`, `STOP`, `STRING`, `SUBTRACT`, `SUPPRESS`, `TERMINATE`, `THEN`, `UNLOCK`, `UNSTRING`, `USE`, `VALIDATE`, `WORKING-STORAGE`, `WRITE`), KeywordReserved, nil},
+			{Words(`(^|(?<=[^\w\-]))`, `\s*($|(?=[^\w\-]))`, `ACCESS`, `ADDRESS`, `ADVANCING`, `AFTER`, `ALL`, `ALPHABET`, `ALPHABETIC`, `ALPHABETIC-LOWER`, `ALPHABETIC-UPPER`, `ALPHANUMERIC`, `ALPHANUMERIC-EDITED`, `ALSO`, `ALTER`, `ALTERNATEANY`, `ARE`, `AREA`, `AREAS`, `ARGUMENT-NUMBER`, `ARGUMENT-VALUE`, `AS`, `ASCENDING`, `ASSIGN`, `AT`, `AUTO`, `AUTO-SKIP`, `AUTOMATIC`, `AUTOTERMINATE`, `BACKGROUND-COLOR`, `BASED`, `BEEP`, `BEFORE`, `BELL`, `BLANK`, `BLINK`, `BLOCK`, `BOTTOM`, `BY`, `BYTE-LENGTH`, `CHAINING`, `CHARACTER`, `CHARACTERS`, `CLASS`, `CODE`, `CODE-SET`, `COL`, `COLLATING`, `COLS`, `COLUMN`, `COLUMNS`, `COMMA`, `COMMAND-LINE`, `COMMIT`, `COMMON`, `CONSTANT`, `CONTAINS`, `CONTENT`, `CONTROL`, `CONTROLS`, `CONVERTING`, `COPY`, `CORR`, `CORRESPONDING`, `COUNT`, `CRT`, `CURRENCY`, `CURSOR`, `CYCLE`, `DATE`, `DAY`, `DAY-OF-WEEK`, `DE`, `DEBUGGING`, `DECIMAL-POINT`, `DECLARATIVES`, `DEFAULT`, `DELIMITED`, `DELIMITER`, `DEPENDING`, `DESCENDING`, `DETAIL`, `DISK`, `DOWN`, `DUPLICATES`, `DYNAMIC`, `EBCDIC`, `ENTRY`, `ENVIRONMENT-NAME`, `ENVIRONMENT-VALUE`, `EOL`, `EOP`, `EOS`, `ERASE`, `ERROR`, `ESCAPE`, `EXCEPTION`, `EXCLUSIVE`, `EXTEND`, `EXTERNAL`, `FILE-ID`, `FILLER`, `FINAL`, `FIRST`, `FIXED`, `FLOAT-LONG`, `FLOAT-SHORT`, `FOOTING`, `FOR`, `FOREGROUND-COLOR`, `FORMAT`, `FROM`, `FULL`, `FUNCTION`, `FUNCTION-ID`, `GIVING`, `GLOBAL`, `GROUP`, `HEADING`, `HIGHLIGHT`, `I-O`, `ID`, `IGNORE`, `IGNORING`, `IN`, `INDEX`, `INDEXED`, `INDICATE`, `INITIAL`, `INITIALIZED`, `INPUT`, `INTO`, `INTRINSIC`, `INVALID`, `IS`, `JUST`, `JUSTIFIED`, `KEY`, `LABEL`, `LAST`, `LEADING`, `LEFT`, `LENGTH`, `LIMIT`, `LIMITS`, `LINAGE`, `LINAGE-COUNTER`, `LINE`, `LINES`, `LOCALE`, `LOCK`, `LOWLIGHT`, `MANUAL`, `MEMORY`, `MINUS`, `MODE`, `MULTIPLE`, `NATIONAL`, `NATIONAL-EDITED`, `NATIVE`, `NEGATIVE`, `NEXT`, `NO`, `NULL`, `NULLS`, `NUMBER`, `NUMBERS`, `NUMERIC`, `NUMERIC-EDITED`, `OBJECT-COMPUTER`, `OCCURS`, `OF`, `OFF`, `OMITTED`, `ON`, `ONLY`, `OPTIONAL`, `ORDER`, `ORGANIZATION`, `OTHER`, `OUTPUT`, `OVERFLOW`, `OVERLINE`, `PACKED-DECIMAL`, `PADDING`, `PAGE`, `PARAGRAPH`, `PLUS`, `POINTER`, `POSITION`, `POSITIVE`, `PRESENT`, `PREVIOUS`, `PRINTER`, `PRINTING`, `PROCEDURE-POINTER`, `PROCEDURES`, `PROCEED`, `PROGRAM`, `PROGRAM-POINTER`, `PROMPT`, `QUOTE`, `QUOTES`, `RANDOM`, `RD`, `RECORD`, `RECORDING`, `RECORDS`, `RECURSIVE`, `REDEFINES`, `REEL`, `REFERENCE`, `RELATIVE`, `REMAINDER`, `REMOVAL`, `RENAMES`, `REPLACING`, `REPORT`, `REPORTING`, `REPORTS`, `REPOSITORY`, `REQUIRED`, `RESERVE`, `RETURNING`, `REVERSE-VIDEO`, `REWIND`, `RIGHT`, `ROLLBACK`, `ROUNDED`, `RUN`, `SAME`, `SCROLL`, `SECURE`, `SEGMENT-LIMIT`, `SELECT`, `SENTENCE`, `SEPARATE`, `SEQUENCE`, `SEQUENTIAL`, `SHARING`, `SIGN`, `SIGNED`, `SIGNED-INT`, `SIGNED-LONG`, `SIGNED-SHORT`, `SIZE`, `SORT-MERGE`, `SOURCE`, `SOURCE-COMPUTER`, `SPECIAL-NAMES`, `STANDARD`, `STANDARD-1`, `STANDARD-2`, `STATUS`, `SUM`, `SYMBOLIC`, `SYNC`, `SYNCHRONIZED`, `TALLYING`, `TAPE`, `TEST`, `THROUGH`, `THRU`, `TIME`, `TIMES`, `TO`, `TOP`, `TRAILING`, `TRANSFORM`, `TYPE`, `UNDERLINE`, `UNIT`, `UNSIGNED`, `UNSIGNED-INT`, `UNSIGNED-LONG`, `UNSIGNED-SHORT`, `UNTIL`, `UP`, `UPDATE`, `UPON`, `USAGE`, `USING`, `VALUE`, `VALUES`, `VARYING`, `WAIT`, `WHEN`, `WITH`, `WORDS`, `YYYYDDD`, `YYYYMMDD`), KeywordPseudo, nil},
+			{Words(`(^|(?<=[^\w\-]))`, `\s*($|(?=[^\w\-]))`, `ACTIVE-CLASS`, `ALIGNED`, `ANYCASE`, `ARITHMETIC`, `ATTRIBUTE`, `B-AND`, `B-NOT`, `B-OR`, `B-XOR`, `BIT`, `BOOLEAN`, `CD`, `CENTER`, `CF`, `CH`, `CHAIN`, `CLASS-ID`, `CLASSIFICATION`, `COMMUNICATION`, `CONDITION`, `DATA-POINTER`, `DESTINATION`, `DISABLE`, `EC`, `EGI`, `EMI`, `ENABLE`, `END-RECEIVE`, `ENTRY-CONVENTION`, `EO`, `ESI`, `EXCEPTION-OBJECT`, `EXPANDS`, `FACTORY`, `FLOAT-BINARY-16`, `FLOAT-BINARY-34`, `FLOAT-BINARY-7`, `FLOAT-DECIMAL-16`, `FLOAT-DECIMAL-34`, `FLOAT-EXTENDED`, `FORMAT`, `FUNCTION-POINTER`, `GET`, `GROUP-USAGE`, `IMPLEMENTS`, `INFINITY`, `INHERITS`, `INTERFACE`, `INTERFACE-ID`, `INVOKE`, `LC_ALL`, `LC_COLLATE`, `LC_CTYPE`, `LC_MESSAGES`, `LC_MONETARY`, `LC_NUMERIC`, `LC_TIME`, `LINE-COUNTER`, `MESSAGE`, `METHOD`, `METHOD-ID`, `NESTED`, `NONE`, `NORMAL`, `OBJECT`, `OBJECT-REFERENCE`, `OPTIONS`, `OVERRIDE`, `PAGE-COUNTER`, `PF`, `PH`, `PROPERTY`, `PROTOTYPE`, `PURGE`, `QUEUE`, `RAISE`, `RAISING`, `RECEIVE`, `RELATION`, `REPLACE`, `REPRESENTS-NOT-A-NUMBER`, `RESET`, `RESUME`, `RETRY`, `RF`, `RH`, `SECONDS`, `SEGMENT`, `SELF`, `SEND`, `SOURCES`, `STATEMENT`, `STEP`, `STRONG`, `SUB-QUEUE-1`, `SUB-QUEUE-2`, `SUB-QUEUE-3`, `SUPER`, `SYMBOL`, `SYSTEM-DEFAULT`, `TABLE`, `TERMINAL`, `TEXT`, `TYPEDEF`, `UCS-4`, `UNIVERSAL`, `USER-DEFAULT`, `UTF-16`, `UTF-8`, `VAL-STATUS`, `VALID`, `VALIDATE`, `VALIDATE-STATUS`), Error, nil},
+			{`(^|(?<=[^\w\-]))(PIC\s+.+?(?=(\s|\.\s))|PICTURE\s+.+?(?=(\s|\.\s))|(COMPUTATIONAL)(-[1-5X])?|(COMP)(-[1-5X])?|BINARY-C-LONG|BINARY-CHAR|BINARY-DOUBLE|BINARY-LONG|BINARY-SHORT|BINARY)\s*($|(?=[^\w\-]))`, KeywordType, nil},
+			{`(\*\*|\*|\+|-|/|<=|>=|<|>|==|/=|=)`, Operator, nil},
+			{`([(),;:&%.])`, Punctuation, nil},
+			{`(^|(?<=[^\w\-]))(ABS|ACOS|ANNUITY|ASIN|ATAN|BYTE-LENGTH|CHAR|COMBINED-DATETIME|CONCATENATE|COS|CURRENT-DATE|DATE-OF-INTEGER|DATE-TO-YYYYMMDD|DAY-OF-INTEGER|DAY-TO-YYYYDDD|EXCEPTION-(?:FILE|LOCATION|STATEMENT|STATUS)|EXP10|EXP|E|FACTORIAL|FRACTION-PART|INTEGER-OF-(?:DATE|DAY|PART)|INTEGER|LENGTH|LOCALE-(?:DATE|TIME(?:-FROM-SECONDS)?)|LOG(?:10)?|LOWER-CASE|MAX|MEAN|MEDIAN|MIDRANGE|MIN|MOD|NUMVAL(?:-C)?|ORD(?:-MAX|-MIN)?|PI|PRESENT-VALUE|RANDOM|RANGE|REM|REVERSE|SECONDS-FROM-FORMATTED-TIME|SECONDS-PAST-MIDNIGHT|SIGN|SIN|SQRT|STANDARD-DEVIATION|STORED-CHAR-LENGTH|SUBSTITUTE(?:-CASE)?|SUM|TAN|TEST-DATE-YYYYMMDD|TEST-DAY-YYYYDDD|TRIM|UPPER-CASE|VARIANCE|WHEN-COMPILED|YEAR-TO-YYYY)\s*($|(?=[^\w\-]))`, NameFunction, nil},
+			{`(^|(?<=[^\w\-]))(true|false)\s*($|(?=[^\w\-]))`, NameBuiltin, nil},
+			{`(^|(?<=[^\w\-]))(equal|equals|ne|lt|le|gt|ge|greater|less|than|not|and|or)\s*($|(?=[^\w\-]))`, OperatorWord, nil},
+		},
+		"strings": {
+			{`"[^"\n]*("|\n)`, LiteralStringDouble, nil},
+			{`'[^'\n]*('|\n)`, LiteralStringSingle, nil},
+		},
+		"nums": {
+			{`\d+(\s*|\.$|$)`, LiteralNumberInteger, nil},
+			{`[+-]?\d*\.\d+(E[-+]?\d+)?`, LiteralNumberFloat, nil},
+			{`[+-]?\d+\.\d*(E[-+]?\d+)?`, LiteralNumberFloat, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/coffee.go

@@ -0,0 +1,91 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Coffeescript lexer.
+var Coffeescript = internal.Register(MustNewLexer(
+	&Config{
+		Name:         "CoffeeScript",
+		Aliases:      []string{"coffee-script", "coffeescript", "coffee"},
+		Filenames:    []string{"*.coffee"},
+		MimeTypes:    []string{"text/coffeescript"},
+		NotMultiline: true,
+		DotAll:       true,
+	},
+	Rules{
+		"commentsandwhitespace": {
+			{`\s+`, Text, nil},
+			{`###[^#].*?###`, CommentMultiline, nil},
+			{`#(?!##[^#]).*?\n`, CommentSingle, nil},
+		},
+		"multilineregex": {
+			{`[^/#]+`, LiteralStringRegex, nil},
+			{`///([gim]+\b|\B)`, LiteralStringRegex, Pop(1)},
+			{`#\{`, LiteralStringInterpol, Push("interpoling_string")},
+			{`[/#]`, LiteralStringRegex, nil},
+		},
+		"slashstartsregex": {
+			Include("commentsandwhitespace"),
+			{`///`, LiteralStringRegex, Push("#pop", "multilineregex")},
+			{`/(?! )(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/([gim]+\b|\B)`, LiteralStringRegex, Pop(1)},
+			{`/`, Operator, nil},
+			Default(Pop(1)),
+		},
+		"root": {
+			Include("commentsandwhitespace"),
+			{`^(?=\s|/)`, Text, Push("slashstartsregex")},
+			{"\\+\\+|~|&&|\\band\\b|\\bor\\b|\\bis\\b|\\bisnt\\b|\\bnot\\b|\\?|:|\\|\\||\\\\(?=\\n)|(<<|>>>?|==?(?!>)|!=?|=(?!>)|-(?!>)|[<>+*`%&\\|\\^/])=?", Operator, Push("slashstartsregex")},
+			{`(?:\([^()]*\))?\s*[=-]>`, NameFunction, Push("slashstartsregex")},
+			{`[{(\[;,]`, Punctuation, Push("slashstartsregex")},
+			{`[})\].]`, Punctuation, nil},
+			{`(?<![.$])(for|own|in|of|while|until|loop|break|return|continue|switch|when|then|if|unless|else|throw|try|catch|finally|new|delete|typeof|instanceof|super|extends|this|class|by)\b`, Keyword, Push("slashstartsregex")},
+			{`(?<![.$])(true|false|yes|no|on|off|null|NaN|Infinity|undefined)\b`, KeywordConstant, nil},
+			{`(Array|Boolean|Date|Error|Function|Math|netscape|Number|Object|Packages|RegExp|String|sun|decodeURI|decodeURIComponent|encodeURI|encodeURIComponent|eval|isFinite|isNaN|parseFloat|parseInt|document|window)\b`, NameBuiltin, nil},
+			{`[$a-zA-Z_][\w.:$]*\s*[:=]\s`, NameVariable, Push("slashstartsregex")},
+			{`@[$a-zA-Z_][\w.:$]*\s*[:=]\s`, NameVariableInstance, Push("slashstartsregex")},
+			{`@`, NameOther, Push("slashstartsregex")},
+			{`@?[$a-zA-Z_][\w$]*`, NameOther, nil},
+			{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
+			{`0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`"""`, LiteralString, Push("tdqs")},
+			{`'''`, LiteralString, Push("tsqs")},
+			{`"`, LiteralString, Push("dqs")},
+			{`'`, LiteralString, Push("sqs")},
+		},
+		"strings": {
+			{`[^#\\\'"]+`, LiteralString, nil},
+		},
+		"interpoling_string": {
+			{`\}`, LiteralStringInterpol, Pop(1)},
+			Include("root"),
+		},
+		"dqs": {
+			{`"`, LiteralString, Pop(1)},
+			{`\\.|\'`, LiteralString, nil},
+			{`#\{`, LiteralStringInterpol, Push("interpoling_string")},
+			{`#`, LiteralString, nil},
+			Include("strings"),
+		},
+		"sqs": {
+			{`'`, LiteralString, Pop(1)},
+			{`#|\\.|"`, LiteralString, nil},
+			Include("strings"),
+		},
+		"tdqs": {
+			{`"""`, LiteralString, Pop(1)},
+			{`\\.|\'|"`, LiteralString, nil},
+			{`#\{`, LiteralStringInterpol, Push("interpoling_string")},
+			{`#`, LiteralString, nil},
+			Include("strings"),
+		},
+		"tsqs": {
+			{`'''`, LiteralString, Pop(1)},
+			{`#|\\.|\'|"`, LiteralString, nil},
+			Include("strings"),
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/coldfusion.go

@@ -0,0 +1,48 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Cfstatement lexer.
+var Cfstatement = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "cfstatement",
+		Aliases:         []string{"cfs"},
+		Filenames:       []string{},
+		MimeTypes:       []string{},
+		NotMultiline:    true,
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			{`//.*?\n`, CommentSingle, nil},
+			{`/\*(?:.|\n)*?\*/`, CommentMultiline, nil},
+			{`\+\+|--`, Operator, nil},
+			{`[-+*/^&=!]`, Operator, nil},
+			{`<=|>=|<|>|==`, Operator, nil},
+			{`mod\b`, Operator, nil},
+			{`(eq|lt|gt|lte|gte|not|is|and|or)\b`, Operator, nil},
+			{`\|\||&&`, Operator, nil},
+			{`\?`, Operator, nil},
+			{`"`, LiteralStringDouble, Push("string")},
+			{`'.*?'`, LiteralStringSingle, nil},
+			{`\d+`, LiteralNumber, nil},
+			{`(if|else|len|var|xml|default|break|switch|component|property|function|do|try|catch|in|continue|for|return|while|required|any|array|binary|boolean|component|date|guid|numeric|query|string|struct|uuid|case)\b`, Keyword, nil},
+			{`(true|false|null)\b`, KeywordConstant, nil},
+			{`(application|session|client|cookie|super|this|variables|arguments)\b`, NameConstant, nil},
+			{`([a-z_$][\w.]*)(\s*)(\()`, ByGroups(NameFunction, Text, Punctuation), nil},
+			{`[a-z_$][\w.]*`, NameVariable, nil},
+			{`[()\[\]{};:,.\\]`, Punctuation, nil},
+			{`\s+`, Text, nil},
+		},
+		"string": {
+			{`""`, LiteralStringDouble, nil},
+			{`#.+?#`, LiteralStringInterpol, nil},
+			{`[^"#]+`, LiteralStringDouble, nil},
+			{`#`, LiteralStringDouble, nil},
+			{`"`, LiteralStringDouble, Pop(1)},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/coq.go

@@ -0,0 +1,63 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Coq lexer.
+var Coq = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Coq",
+		Aliases:   []string{"coq"},
+		Filenames: []string{"*.v"},
+		MimeTypes: []string{"text/x-coq"},
+	},
+	Rules{
+		"root": {
+			{`\s+`, Text, nil},
+			{`false|true|\(\)|\[\]`, NameBuiltinPseudo, nil},
+			{`\(\*`, Comment, Push("comment")},
+			{Words(`\b`, `\b`, `Section`, `Module`, `End`, `Require`, `Import`, `Export`, `Variable`, `Variables`, `Parameter`, `Parameters`, `Axiom`, `Hypothesis`, `Hypotheses`, `Notation`, `Local`, `Tactic`, `Reserved`, `Scope`, `Open`, `Close`, `Bind`, `Delimit`, `Definition`, `Let`, `Ltac`, `Fixpoint`, `CoFixpoint`, `Morphism`, `Relation`, `Implicit`, `Arguments`, `Set`, `Unset`, `Contextual`, `Strict`, `Prenex`, `Implicits`, `Inductive`, `CoInductive`, `Record`, `Structure`, `Canonical`, `Coercion`, `Theorem`, `Lemma`, `Corollary`, `Proposition`, `Fact`, `Remark`, `Example`, `Proof`, `Goal`, `Save`, `Qed`, `Defined`, `Hint`, `Resolve`, `Rewrite`, `View`, `Search`, `Show`, `Print`, `Printing`, `All`, `Graph`, `Projections`, `inside`, `outside`, `Check`, `Global`, `Instance`, `Class`, `Existing`, `Universe`, `Polymorphic`, `Monomorphic`, `Context`), KeywordNamespace, nil},
+			{Words(`\b`, `\b`, `forall`, `exists`, `exists2`, `fun`, `fix`, `cofix`, `struct`, `match`, `end`, `in`, `return`, `let`, `if`, `is`, `then`, `else`, `for`, `of`, `nosimpl`, `with`, `as`), Keyword, nil},
+			{Words(`\b`, `\b`, `Type`, `Prop`), KeywordType, nil},
+			{Words(`\b`, `\b`, `pose`, `set`, `move`, `case`, `elim`, `apply`, `clear`, `hnf`, `intro`, `intros`, `generalize`, `rename`, `pattern`, `after`, `destruct`, `induction`, `using`, `refine`, `inversion`, `injection`, `rewrite`, `congr`, `unlock`, `compute`, `ring`, `field`, `replace`, `fold`, `unfold`, `change`, `cutrewrite`, `simpl`, `have`, `suff`, `wlog`, `suffices`, `without`, `loss`, `nat_norm`, `assert`, `cut`, `trivial`, `revert`, `bool_congr`, `nat_congr`, `symmetry`, `transitivity`, `auto`, `split`, `left`, `right`, `autorewrite`, `tauto`, `setoid_rewrite`, `intuition`, `eauto`, `eapply`, `econstructor`, `etransitivity`, `constructor`, `erewrite`, `red`, `cbv`, `lazy`, `vm_compute`, `native_compute`, `subst`), Keyword, nil},
+			{Words(`\b`, `\b`, `by`, `done`, `exact`, `reflexivity`, `tauto`, `romega`, `omega`, `assumption`, `solve`, `contradiction`, `discriminate`, `congruence`), KeywordPseudo, nil},
+			{Words(`\b`, `\b`, `do`, `last`, `first`, `try`, `idtac`, `repeat`), KeywordReserved, nil},
+			{`\b([A-Z][\w\']*)`, Name, nil},
+			{"(\u03bb|\u03a0|\\|\\}|\\{\\||\\\\/|/\\\\|=>|~|\\}|\\|]|\\||\\{<|\\{|`|_|]|\\[\\||\\[>|\\[<|\\[|\\?\\?|\\?|>\\}|>]|>|=|<->|<-|<|;;|;|:>|:=|::|:|\\.\\.|\\.|->|-\\.|-|,|\\+|\\*|\\)|\\(|&&|&|#|!=)", Operator, nil},
+			{`([=<>@^|&+\*/$%-]|[!?~])?[!$%&*+\./:<=>?@^|~-]`, Operator, nil},
+			{`\b(unit|nat|bool|string|ascii|list)\b`, KeywordType, nil},
+			{`[^\W\d][\w']*`, Name, nil},
+			{`\d[\d_]*`, LiteralNumberInteger, nil},
+			{`0[xX][\da-fA-F][\da-fA-F_]*`, LiteralNumberHex, nil},
+			{`0[oO][0-7][0-7_]*`, LiteralNumberOct, nil},
+			{`0[bB][01][01_]*`, LiteralNumberBin, nil},
+			{`-?\d[\d_]*(.[\d_]*)?([eE][+\-]?\d[\d_]*)`, LiteralNumberFloat, nil},
+			{`'(?:(\\[\\\"'ntbr ])|(\\[0-9]{3})|(\\x[0-9a-fA-F]{2}))'`, LiteralStringChar, nil},
+			{`'.'`, LiteralStringChar, nil},
+			{`'`, Keyword, nil},
+			{`"`, LiteralStringDouble, Push("string")},
+			{`[~?][a-z][\w\']*:`, Name, nil},
+		},
+		"comment": {
+			{`[^(*)]+`, Comment, nil},
+			{`\(\*`, Comment, Push()},
+			{`\*\)`, Comment, Pop(1)},
+			{`[(*)]`, Comment, nil},
+		},
+		"string": {
+			{`[^"]+`, LiteralStringDouble, nil},
+			{`""`, LiteralStringDouble, nil},
+			{`"`, LiteralStringDouble, Pop(1)},
+		},
+		"dotted": {
+			{`\s+`, Text, nil},
+			{`\.`, Punctuation, nil},
+			{`[A-Z][\w\']*(?=\s*\.)`, NameNamespace, nil},
+			{`[A-Z][\w\']*`, NameClass, Pop(1)},
+			{`[a-z][a-z0-9_\']*`, Name, Pop(1)},
+			Default(Pop(1)),
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/cpp.go

@@ -0,0 +1,106 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// CPP lexer.
+var CPP = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "C++",
+		Aliases:   []string{"cpp", "c++"},
+		Filenames: []string{"*.cpp", "*.hpp", "*.c++", "*.h++", "*.cc", "*.hh", "*.cxx", "*.hxx", "*.C", "*.H", "*.cp", "*.CPP"},
+		MimeTypes: []string{"text/x-c++hdr", "text/x-c++src"},
+		EnsureNL:  true,
+	},
+	Rules{
+		"statements": {
+			{Words(``, `\b`, `catch`, `const_cast`, `delete`, `dynamic_cast`, `explicit`, `export`, `friend`, `mutable`, `namespace`, `new`, `operator`, `private`, `protected`, `public`, `reinterpret_cast`, `restrict`, `static_cast`, `template`, `this`, `throw`, `throws`, `try`, `typeid`, `typename`, `using`, `virtual`, `constexpr`, `nullptr`, `decltype`, `thread_local`, `alignas`, `alignof`, `static_assert`, `noexcept`, `override`, `final`, `concept`, `requires`, `consteval`, `co_await`, `co_return`, `co_yield`), Keyword, nil},
+			{`(enum)\b(\s+)(class)\b(\s*)`, ByGroups(Keyword, Text, Keyword, Text), Push("classname")},
+			{`(class|struct|enum|union)\b(\s*)`, ByGroups(Keyword, Text), Push("classname")},
+			{`\[\[.+\]\]`, NameAttribute, nil},
+			{`(R)(")([^\\()\s]{,16})(\()((?:.|\n)*?)(\)\3)(")`, ByGroups(LiteralStringAffix, LiteralString, LiteralStringDelimiter, LiteralStringDelimiter, LiteralString, LiteralStringDelimiter, LiteralString), nil},
+			{`(u8|u|U)(")`, ByGroups(LiteralStringAffix, LiteralString), Push("string")},
+			{`(L?)(")`, ByGroups(LiteralStringAffix, LiteralString), Push("string")},
+			{`(L?)(')(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])(')`, ByGroups(LiteralStringAffix, LiteralStringChar, LiteralStringChar, LiteralStringChar), nil},
+			{`(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*`, LiteralNumberFloat, nil},
+			{`(\d+\.\d*|\.\d+|\d+[fF])[fF]?`, LiteralNumberFloat, nil},
+			{`0[xX]([0-9A-Fa-f]('?[0-9A-Fa-f]+)*)[LlUu]*`, LiteralNumberHex, nil},
+			{`0('?[0-7]+)+[LlUu]*`, LiteralNumberOct, nil},
+			{`0[Bb][01]('?[01]+)*[LlUu]*`, LiteralNumberBin, nil},
+			{`[0-9]('?[0-9]+)*[LlUu]*`, LiteralNumberInteger, nil},
+			{`\*/`, Error, nil},
+			{`[~!%^&*+=|?:<>/-]`, Operator, nil},
+			{`[()\[\],.]`, Punctuation, nil},
+			{Words(``, `\b`, `asm`, `auto`, `break`, `case`, `const`, `continue`, `default`, `do`, `else`, `enum`, `extern`, `for`, `goto`, `if`, `register`, `restricted`, `return`, `sizeof`, `static`, `struct`, `switch`, `typedef`, `union`, `volatile`, `while`), Keyword, nil},
+			{`(bool|int|long|float|short|double|char((8|16|32)_t)?|wchar_t|unsigned|signed|void|u?int(_fast|_least|)(8|16|32|64)_t)\b`, KeywordType, nil},
+			{Words(``, `\b`, `inline`, `_inline`, `__inline`, `naked`, `restrict`, `thread`, `typename`), KeywordReserved, nil},
+			{`(__m(128i|128d|128|64))\b`, KeywordReserved, nil},
+			{Words(`__`, `\b`, `asm`, `int8`, `based`, `except`, `int16`, `stdcall`, `cdecl`, `fastcall`, `int32`, `declspec`, `finally`, `int64`, `try`, `leave`, `w64`, `unaligned`, `raise`, `noop`, `identifier`, `forceinline`, `assume`), KeywordReserved, nil},
+			{`(true|false|NULL)\b`, NameBuiltin, nil},
+			{`([a-zA-Z_]\w*)(\s*)(:)(?!:)`, ByGroups(NameLabel, Text, Punctuation), nil},
+			{`[a-zA-Z_]\w*`, Name, nil},
+		},
+		"root": {
+			Include("whitespace"),
+			{`((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;{]*)(\{)`, ByGroups(UsingSelf("root"), NameFunction, UsingSelf("root"), UsingSelf("root"), Punctuation), Push("function")},
+			{`((?:[\w*\s])+?(?:\s|[*]))([a-zA-Z_]\w*)(\s*\([^;]*?\))([^;]*)(;)`, ByGroups(UsingSelf("root"), NameFunction, UsingSelf("root"), UsingSelf("root"), Punctuation), nil},
+			Default(Push("statement")),
+			{Words(`__`, `\b`, `virtual_inheritance`, `uuidof`, `super`, `single_inheritance`, `multiple_inheritance`, `interface`, `event`), KeywordReserved, nil},
+			{`__(offload|blockingoffload|outer)\b`, KeywordPseudo, nil},
+		},
+		"classname": {
+			{`(\[\[.+\]\])(\s*)`, ByGroups(NameAttribute, Text), nil},
+			{`[a-zA-Z_]\w*`, NameClass, Pop(1)},
+			{`\s*(?=[>{])`, Text, Pop(1)},
+		},
+		"whitespace": {
+			{`^#if\s+0`, CommentPreproc, Push("if0")},
+			{`^#`, CommentPreproc, Push("macro")},
+			{`^(\s*(?:/[*].*?[*]/\s*)?)(#if\s+0)`, ByGroups(UsingSelf("root"), CommentPreproc), Push("if0")},
+			{`^(\s*(?:/[*].*?[*]/\s*)?)(#)`, ByGroups(UsingSelf("root"), CommentPreproc), Push("macro")},
+			{`\n`, Text, nil},
+			{`\s+`, Text, nil},
+			{`\\\n`, Text, nil},
+			{`//(\n|[\w\W]*?[^\\]\n)`, CommentSingle, nil},
+			{`/(\\\n)?[*][\w\W]*?[*](\\\n)?/`, CommentMultiline, nil},
+			{`/(\\\n)?[*][\w\W]*`, CommentMultiline, nil},
+		},
+		"statement": {
+			Include("whitespace"),
+			Include("statements"),
+			{`[{]`, Punctuation, Push("root")},
+			{`[;}]`, Punctuation, Pop(1)},
+		},
+		"function": {
+			Include("whitespace"),
+			Include("statements"),
+			{`;`, Punctuation, nil},
+			{`\{`, Punctuation, Push()},
+			{`\}`, Punctuation, Pop(1)},
+		},
+		"string": {
+			{`"`, LiteralString, Pop(1)},
+			{`\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})`, LiteralStringEscape, nil},
+			{`[^\\"\n]+`, LiteralString, nil},
+			{`\\\n`, LiteralString, nil},
+			{`\\`, LiteralString, nil},
+		},
+		"macro": {
+			{`(include)(\s*(?:/[*].*?[*]/\s*)?)([^\n]+)`, ByGroups(CommentPreproc, Text, CommentPreprocFile), nil},
+			{`[^/\n]+`, CommentPreproc, nil},
+			{`/[*](.|\n)*?[*]/`, CommentMultiline, nil},
+			{`//.*?\n`, CommentSingle, Pop(1)},
+			{`/`, CommentPreproc, nil},
+			{`(?<=\\)\n`, CommentPreproc, nil},
+			{`\n`, CommentPreproc, Pop(1)},
+		},
+		"if0": {
+			{`^\s*#if.*?(?<!\\)\n`, CommentPreproc, Push()},
+			{`^\s*#el(?:se|if).*\n`, CommentPreproc, Pop(1)},
+			{`^\s*#endif.*?(?<!\\)\n`, CommentPreproc, Pop(1)},
+			{`.*?\n`, Comment, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/cql.go

@@ -0,0 +1,69 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// CassandraCQL lexer.
+var CassandraCQL = internal.Register(MustNewLexer(
+	&Config{
+		Name:            "Cassandra CQL",
+		Aliases:         []string{"cassandra", "cql"},
+		Filenames:       []string{"*.cql"},
+		MimeTypes:       []string{"text/x-cql"},
+		NotMultiline:    true,
+		CaseInsensitive: true,
+	},
+	Rules{
+		"root": {
+			{`\s+`, TextWhitespace, nil},
+			{`(--|\/\/).*\n?`, CommentSingle, nil},
+			{`/\*`, CommentMultiline, Push("multiline-comments")},
+			{`(ascii|bigint|blob|boolean|counter|date|decimal|double|float|frozen|inet|int|list|map|set|smallint|text|time|timestamp|timeuuid|tinyint|tuple|uuid|varchar|varint)\b`, NameBuiltin, nil},
+			{Words(``, `\b`, `ADD`, `AGGREGATE`, `ALL`, `ALLOW`, `ALTER`, `AND`, `ANY`, `APPLY`, `AS`, `ASC`, `AUTHORIZE`, `BATCH`, `BEGIN`, `BY`, `CLUSTERING`, `COLUMNFAMILY`, `COMPACT`, `CONSISTENCY`, `COUNT`, `CREATE`, `CUSTOM`, `DELETE`, `DESC`, `DISTINCT`, `DROP`, `EACH_QUORUM`, `ENTRIES`, `EXISTS`, `FILTERING`, `FROM`, `FULL`, `GRANT`, `IF`, `IN`, `INDEX`, `INFINITY`, `INSERT`, `INTO`, `KEY`, `KEYS`, `KEYSPACE`, `KEYSPACES`, `LEVEL`, `LIMIT`, `LOCAL_ONE`, `LOCAL_QUORUM`, `MATERIALIZED`, `MODIFY`, `NAN`, `NORECURSIVE`, `NOSUPERUSER`, `NOT`, `OF`, `ON`, `ONE`, `ORDER`, `PARTITION`, `PASSWORD`, `PER`, `PERMISSION`, `PERMISSIONS`, `PRIMARY`, `QUORUM`, `RENAME`, `REVOKE`, `SCHEMA`, `SELECT`, `STATIC`, `STORAGE`, `SUPERUSER`, `TABLE`, `THREE`, `TO`, `TOKEN`, `TRUNCATE`, `TTL`, `TWO`, `TYPE`, `UNLOGGED`, `UPDATE`, `USE`, `USER`, `USERS`, `USING`, `VALUES`, `VIEW`, `WHERE`, `WITH`, `WRITETIME`, `REPLICATION`, `OR`, `REPLACE`, `FUNCTION`, `CALLED`, `INPUT`, `RETURNS`, `LANGUAGE`, `ROLE`, `ROLES`, `TRIGGER`, `DURABLE_WRITES`, `LOGIN`, `OPTIONS`, `LOGGED`, `SFUNC`, `STYPE`, `FINALFUNC`, `INITCOND`, `IS`, `CONTAINS`, `JSON`, `PAGING`, `OFF`), Keyword, nil},
+			{"[+*/<>=~!@#%^&|`?-]+", Operator, nil},
+			{`(?s)(java|javascript)(\s+)(AS)(\s+)('|\$\$)(.*?)(\5)`,
+				UsingByGroup(
+					internal.Get,
+					1, 6,
+					NameBuiltin, TextWhitespace, Keyword, TextWhitespace,
+					LiteralStringHeredoc, LiteralStringHeredoc, LiteralStringHeredoc,
+				),
+				nil,
+			},
+			{`(true|false|null)\b`, KeywordConstant, nil},
+			{`0x[0-9a-f]+`, LiteralNumberHex, nil},
+			{`[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}`, LiteralNumberHex, nil},
+			{`\.[0-9]+(e[+-]?[0-9]+)?`, Error, nil},
+			{`-?[0-9]+(\.[0-9])?(e[+-]?[0-9]+)?`, LiteralNumberFloat, nil},
+			{`[0-9]+`, LiteralNumberInteger, nil},
+			{`'`, LiteralStringSingle, Push("string")},
+			{`"`, LiteralStringName, Push("quoted-ident")},
+			{`\$\$`, LiteralStringHeredoc, Push("dollar-string")},
+			{`[a-z_]\w*`, Name, nil},
+			{`:(['"]?)[a-z]\w*\b\1`, NameVariable, nil},
+			{`[;:()\[\]\{\},.]`, Punctuation, nil},
+		},
+		"multiline-comments": {
+			{`/\*`, CommentMultiline, Push("multiline-comments")},
+			{`\*/`, CommentMultiline, Pop(1)},
+			{`[^/*]+`, CommentMultiline, nil},
+			{`[/*]`, CommentMultiline, nil},
+		},
+		"string": {
+			{`[^']+`, LiteralStringSingle, nil},
+			{`''`, LiteralStringSingle, nil},
+			{`'`, LiteralStringSingle, Pop(1)},
+		},
+		"quoted-ident": {
+			{`[^"]+`, LiteralStringName, nil},
+			{`""`, LiteralStringName, nil},
+			{`"`, LiteralStringName, Pop(1)},
+		},
+		"dollar-string": {
+			{`[^\$]+`, LiteralStringHeredoc, nil},
+			{`\$\$`, LiteralStringHeredoc, Pop(1)},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/crystal.go

@@ -0,0 +1,262 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Crystal lexer.
+var Crystal = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Crystal",
+		Aliases:   []string{"cr", "crystal"},
+		Filenames: []string{"*.cr"},
+		MimeTypes: []string{"text/x-crystal"},
+		DotAll:    true,
+	},
+	Rules{
+		"root": {
+			{`#.*?$`, CommentSingle, nil},
+			{Words(``, `\b`, `abstract`, `asm`, `as`, `begin`, `break`, `case`, `do`, `else`, `elsif`, `end`, `ensure`, `extend`, `ifdef`, `if`, `include`, `instance_sizeof`, `next`, `of`, `pointerof`, `private`, `protected`, `rescue`, `return`, `require`, `sizeof`, `super`, `then`, `typeof`, `unless`, `until`, `when`, `while`, `with`, `yield`), Keyword, nil},
+			{Words(``, `\b`, `true`, `false`, `nil`), KeywordConstant, nil},
+			{`(module|lib)(\s+)([a-zA-Z_]\w*(?:::[a-zA-Z_]\w*)*)`, ByGroups(Keyword, Text, NameNamespace), nil},
+			{`(def|fun|macro)(\s+)((?:[a-zA-Z_]\w*::)*)`, ByGroups(Keyword, Text, NameNamespace), Push("funcname")},
+			{"def(?=[*%&^`~+-/\\[<>=])", Keyword, Push("funcname")},
+			{`(class|struct|union|type|alias|enum)(\s+)((?:[a-zA-Z_]\w*::)*)`, ByGroups(Keyword, Text, NameNamespace), Push("classname")},
+			{`(self|out|uninitialized)\b|(is_a|responds_to)\?`, KeywordPseudo, nil},
+			{Words(``, `\b`, `debugger`, `record`, `pp`, `assert_responds_to`, `spawn`, `parallel`, `getter`, `setter`, `property`, `delegate`, `def_hash`, `def_equals`, `def_equals_and_hash`, `forward_missing_to`), NameBuiltinPseudo, nil},
+			{`getter[!?]|property[!?]|__(DIR|FILE|LINE)__\b`, NameBuiltinPseudo, nil},
+			{Words(`(?<!\.)`, `\b`, `Object`, `Value`, `Struct`, `Reference`, `Proc`, `Class`, `Nil`, `Symbol`, `Enum`, `Void`, `Bool`, `Number`, `Int`, `Int8`, `Int16`, `Int32`, `Int64`, `UInt8`, `UInt16`, `UInt32`, `UInt64`, `Float`, `Float32`, `Float64`, `Char`, `String`, `Pointer`, `Slice`, `Range`, `Exception`, `Regex`, `Mutex`, `StaticArray`, `Array`, `Hash`, `Set`, `Tuple`, `Deque`, `Box`, `Process`, `File`, `Dir`, `Time`, `Channel`, `Concurrent`, `Scheduler`, `abort`, `at_exit`, `caller`, `delay`, `exit`, `fork`, `future`, `get_stack_top`, `gets`, `lazy`, `loop`, `main`, `p`, `print`, `printf`, `puts`, `raise`, `rand`, `read_line`, `sleep`, `sprintf`, `system`, `with_color`), NameBuiltin, nil},
+			{"(?<!\\w)(<<-?)([\"`\\']?)([a-zA-Z_]\\w*)(\\2)(.*?\\n)", StringHeredoc, nil},
+			{`(<<-?)("|\')()(\2)(.*?\n)`, StringHeredoc, nil},
+			{`__END__`, CommentPreproc, Push("end-part")},
+			{`(?:^|(?<=[=<>~!:])|(?<=(?:\s|;)when\s)|(?<=(?:\s|;)or\s)|(?<=(?:\s|;)and\s)|(?<=\.index\s)|(?<=\.scan\s)|(?<=\.sub\s)|(?<=\.sub!\s)|(?<=\.gsub\s)|(?<=\.gsub!\s)|(?<=\.match\s)|(?<=(?:\s|;)if\s)|(?<=(?:\s|;)elsif\s)|(?<=^when\s)|(?<=^index\s)|(?<=^scan\s)|(?<=^sub\s)|(?<=^gsub\s)|(?<=^sub!\s)|(?<=^gsub!\s)|(?<=^match\s)|(?<=^if\s)|(?<=^elsif\s))(\s*)(/)`, ByGroups(Text, LiteralStringRegex), Push("multiline-regex")},
+			{`(?<=\(|,|\[)/`, LiteralStringRegex, Push("multiline-regex")},
+			{`(\s+)(/)(?![\s=])`, ByGroups(Text, LiteralStringRegex), Push("multiline-regex")},
+			{`(0o[0-7]+(?:_[0-7]+)*(?:_?[iu][0-9]+)?)\b(\s*)([/?])?`, ByGroups(LiteralNumberOct, Text, Operator), nil},
+			{`(0x[0-9A-Fa-f]+(?:_[0-9A-Fa-f]+)*(?:_?[iu][0-9]+)?)\b(\s*)([/?])?`, ByGroups(LiteralNumberHex, Text, Operator), nil},
+			{`(0b[01]+(?:_[01]+)*(?:_?[iu][0-9]+)?)\b(\s*)([/?])?`, ByGroups(LiteralNumberBin, Text, Operator), nil},
+			{`((?:0(?![0-9])|[1-9][\d_]*)(?:\.\d[\d_]*)(?:e[+-]?[0-9]+)?(?:_?f[0-9]+)?)(\s*)([/?])?`, ByGroups(LiteralNumberFloat, Text, Operator), nil},
+			{`((?:0(?![0-9])|[1-9][\d_]*)(?:\.\d[\d_]*)?(?:e[+-]?[0-9]+)(?:_?f[0-9]+)?)(\s*)([/?])?`, ByGroups(LiteralNumberFloat, Text, Operator), nil},
+			{`((?:0(?![0-9])|[1-9][\d_]*)(?:\.\d[\d_]*)?(?:e[+-]?[0-9]+)?(?:_?f[0-9]+))(\s*)([/?])?`, ByGroups(LiteralNumberFloat, Text, Operator), nil},
+			{`(0\b|[1-9][\d]*(?:_\d+)*(?:_?[iu][0-9]+)?)\b(\s*)([/?])?`, ByGroups(LiteralNumberInteger, Text, Operator), nil},
+			{`@@[a-zA-Z_]\w*`, NameVariableClass, nil},
+			{`@[a-zA-Z_]\w*`, NameVariableInstance, nil},
+			{`\$\w+`, NameVariableGlobal, nil},
+			{"\\$[!@&`\\'+~=/\\\\,;.<>_*$?:\"^-]", NameVariableGlobal, nil},
+			{`\$-[0adFiIlpvw]`, NameVariableGlobal, nil},
+			{`::`, Operator, nil},
+			Include("strings"),
+			{`\?(\\[MC]-)*(\\([\\befnrtv#"\']|x[a-fA-F0-9]{1,2}|[0-7]{1,3})|\S)(?!\w)`, LiteralStringChar, nil},
+			{`[A-Z][A-Z_]+\b`, NameConstant, nil},
+			{`\{%`, LiteralStringInterpol, Push("in-macro-control")},
+			{`\{\{`, LiteralStringInterpol, Push("in-macro-expr")},
+			{`(@\[)(\s*)([A-Z]\w*)`, ByGroups(Operator, Text, NameDecorator), Push("in-attr")},
+			{Words(`(\.|::)`, ``, `!=`, `!~`, `!`, `%`, `&&`, `&`, `**`, `*`, `+`, `-`, `/`, `<=>`, `<<`, `<=`, `<`, `===`, `==`, `=~`, `=`, `>=`, `>>`, `>`, `[]=`, `[]?`, `[]`, `^`, `||`, `|`, `~`), ByGroups(Operator, NameOperator), nil},
+			{"(\\.|::)([a-zA-Z_]\\w*[!?]?|[*%&^`~+\\-/\\[<>=])", ByGroups(Operator, Name), nil},
+			{`[a-zA-Z_]\w*(?:[!?](?!=))?`, Name, nil},
+			{`(\[|\]\??|\*\*|<=>?|>=|<<?|>>?|=~|===|!~|&&?|\|\||\.{1,3})`, Operator, nil},
+			{`[-+/*%=<>&!^|~]=?`, Operator, nil},
+			{`[(){};,/?:\\]`, Punctuation, nil},
+			{`\s+`, Text, nil},
+		},
+		"funcname": {
+			{"(?:([a-zA-Z_]\\w*)(\\.))?([a-zA-Z_]\\w*[!?]?|\\*\\*?|[-+]@?|[/%&|^`~]|\\[\\]=?|<<|>>|<=?>|>=?|===?)", ByGroups(NameClass, Operator, NameFunction), Pop(1)},
+			Default(Pop(1)),
+		},
+		"classname": {
+			{`[A-Z_]\w*`, NameClass, nil},
+			{`(\()(\s*)([A-Z_]\w*)(\s*)(\))`, ByGroups(Punctuation, Text, NameClass, Text, Punctuation), nil},
+			Default(Pop(1)),
+		},
+		"in-intp": {
+			{`\{`, LiteralStringInterpol, Push()},
+			{`\}`, LiteralStringInterpol, Pop(1)},
+			Include("root"),
+		},
+		"string-intp": {
+			{`#\{`, LiteralStringInterpol, Push("in-intp")},
+		},
+		"string-escaped": {
+			{`\\([\\befnstv#"\']|x[a-fA-F0-9]{1,2}|[0-7]{1,3})`, LiteralStringEscape, nil},
+		},
+		"string-intp-escaped": {
+			Include("string-intp"),
+			Include("string-escaped"),
+		},
+		"interpolated-regex": {
+			Include("string-intp"),
+			{`[\\#]`, LiteralStringRegex, nil},
+			{`[^\\#]+`, LiteralStringRegex, nil},
+		},
+		"interpolated-string": {
+			Include("string-intp"),
+			{`[\\#]`, LiteralStringOther, nil},
+			{`[^\\#]+`, LiteralStringOther, nil},
+		},
+		"multiline-regex": {
+			Include("string-intp"),
+			{`\\\\`, LiteralStringRegex, nil},
+			{`\\/`, LiteralStringRegex, nil},
+			{`[\\#]`, LiteralStringRegex, nil},
+			{`[^\\/#]+`, LiteralStringRegex, nil},
+			{`/[imsx]*`, LiteralStringRegex, Pop(1)},
+		},
+		"end-part": {
+			{`.+`, CommentPreproc, Pop(1)},
+		},
+		"in-macro-control": {
+			{`\{%`, LiteralStringInterpol, Push()},
+			{`%\}`, LiteralStringInterpol, Pop(1)},
+			{`for\b|in\b`, Keyword, nil},
+			Include("root"),
+		},
+		"in-macro-expr": {
+			{`\{\{`, LiteralStringInterpol, Push()},
+			{`\}\}`, LiteralStringInterpol, Pop(1)},
+			Include("root"),
+		},
+		"in-attr": {
+			{`\[`, Operator, Push()},
+			{`\]`, Operator, Pop(1)},
+			Include("root"),
+		},
+		"strings": {
+			{`\:@{0,2}[a-zA-Z_]\w*[!?]?`, LiteralStringSymbol, nil},
+			{Words(`\:@{0,2}`, ``, `!=`, `!~`, `!`, `%`, `&&`, `&`, `**`, `*`, `+`, `-`, `/`, `<=>`, `<<`, `<=`, `<`, `===`, `==`, `=~`, `=`, `>=`, `>>`, `>`, `[]=`, `[]?`, `[]`, `^`, `||`, `|`, `~`), LiteralStringSymbol, nil},
+			{`:'(\\\\|\\'|[^'])*'`, LiteralStringSymbol, nil},
+			{`'(\\\\|\\'|[^']|\\[^'\\]+)'`, LiteralStringChar, nil},
+			{`:"`, LiteralStringSymbol, Push("simple-sym")},
+			{`([a-zA-Z_]\w*)(:)(?!:)`, ByGroups(LiteralStringSymbol, Punctuation), nil},
+			{`"`, LiteralStringDouble, Push("simple-string")},
+			{"(?<!\\.)`", LiteralStringBacktick, Push("simple-backtick")},
+			{`%\{`, LiteralStringOther, Push("cb-intp-string")},
+			{`%[wi]\{`, LiteralStringOther, Push("cb-string")},
+			{`%r\{`, LiteralStringRegex, Push("cb-regex")},
+			{`%\[`, LiteralStringOther, Push("sb-intp-string")},
+			{`%[wi]\[`, LiteralStringOther, Push("sb-string")},
+			{`%r\[`, LiteralStringRegex, Push("sb-regex")},
+			{`%\(`, LiteralStringOther, Push("pa-intp-string")},
+			{`%[wi]\(`, LiteralStringOther, Push("pa-string")},
+			{`%r\(`, LiteralStringRegex, Push("pa-regex")},
+			{`%<`, LiteralStringOther, Push("ab-intp-string")},
+			{`%[wi]<`, LiteralStringOther, Push("ab-string")},
+			{`%r<`, LiteralStringRegex, Push("ab-regex")},
+			{`(%r([\W_]))((?:\\\2|(?!\2).)*)(\2[imsx]*)`, String, nil},
+			{`(%[wi]([\W_]))((?:\\\2|(?!\2).)*)(\2)`, String, nil},
+			{`(?<=[-+/*%=<>&!^|~,(])(\s*)(%([\t ])(?:(?:\\\3|(?!\3).)*)\3)`, ByGroups(Text, LiteralStringOther, None), nil},
+			{`^(\s*)(%([\t ])(?:(?:\\\3|(?!\3).)*)\3)`, ByGroups(Text, LiteralStringOther, None), nil},
+			{`(%([\[{(<]))((?:\\\2|(?!\2).)*)(\2)`, String, nil},
+		},
+		"simple-string": {
+			Include("string-intp-escaped"),
+			{`[^\\"#]+`, LiteralStringDouble, nil},
+			{`[\\#]`, LiteralStringDouble, nil},
+			{`"`, LiteralStringDouble, Pop(1)},
+		},
+		"simple-sym": {
+			Include("string-escaped"),
+			{`[^\\"#]+`, LiteralStringSymbol, nil},
+			{`[\\#]`, LiteralStringSymbol, nil},
+			{`"`, LiteralStringSymbol, Pop(1)},
+		},
+		"simple-backtick": {
+			Include("string-intp-escaped"),
+			{"[^\\\\`#]+", LiteralStringBacktick, nil},
+			{`[\\#]`, LiteralStringBacktick, nil},
+			{"`", LiteralStringBacktick, Pop(1)},
+		},
+		"cb-intp-string": {
+			{`\\[\{]`, LiteralStringOther, nil},
+			{`\{`, LiteralStringOther, Push()},
+			{`\}`, LiteralStringOther, Pop(1)},
+			Include("string-intp-escaped"),
+			{`[\\#{}]`, LiteralStringOther, nil},
+			{`[^\\#{}]+`, LiteralStringOther, nil},
+		},
+		"cb-string": {
+			{`\\[\\{}]`, LiteralStringOther, nil},
+			{`\{`, LiteralStringOther, Push()},
+			{`\}`, LiteralStringOther, Pop(1)},
+			{`[\\#{}]`, LiteralStringOther, nil},
+			{`[^\\#{}]+`, LiteralStringOther, nil},
+		},
+		"cb-regex": {
+			{`\\[\\{}]`, LiteralStringRegex, nil},
+			{`\{`, LiteralStringRegex, Push()},
+			{`\}[imsx]*`, LiteralStringRegex, Pop(1)},
+			Include("string-intp"),
+			{`[\\#{}]`, LiteralStringRegex, nil},
+			{`[^\\#{}]+`, LiteralStringRegex, nil},
+		},
+		"sb-intp-string": {
+			{`\\[\[]`, LiteralStringOther, nil},
+			{`\[`, LiteralStringOther, Push()},
+			{`\]`, LiteralStringOther, Pop(1)},
+			Include("string-intp-escaped"),
+			{`[\\#\[\]]`, LiteralStringOther, nil},
+			{`[^\\#\[\]]+`, LiteralStringOther, nil},
+		},
+		"sb-string": {
+			{`\\[\\\[\]]`, LiteralStringOther, nil},
+			{`\[`, LiteralStringOther, Push()},
+			{`\]`, LiteralStringOther, Pop(1)},
+			{`[\\#\[\]]`, LiteralStringOther, nil},
+			{`[^\\#\[\]]+`, LiteralStringOther, nil},
+		},
+		"sb-regex": {
+			{`\\[\\\[\]]`, LiteralStringRegex, nil},
+			{`\[`, LiteralStringRegex, Push()},
+			{`\][imsx]*`, LiteralStringRegex, Pop(1)},
+			Include("string-intp"),
+			{`[\\#\[\]]`, LiteralStringRegex, nil},
+			{`[^\\#\[\]]+`, LiteralStringRegex, nil},
+		},
+		"pa-intp-string": {
+			{`\\[\(]`, LiteralStringOther, nil},
+			{`\(`, LiteralStringOther, Push()},
+			{`\)`, LiteralStringOther, Pop(1)},
+			Include("string-intp-escaped"),
+			{`[\\#()]`, LiteralStringOther, nil},
+			{`[^\\#()]+`, LiteralStringOther, nil},
+		},
+		"pa-string": {
+			{`\\[\\()]`, LiteralStringOther, nil},
+			{`\(`, LiteralStringOther, Push()},
+			{`\)`, LiteralStringOther, Pop(1)},
+			{`[\\#()]`, LiteralStringOther, nil},
+			{`[^\\#()]+`, LiteralStringOther, nil},
+		},
+		"pa-regex": {
+			{`\\[\\()]`, LiteralStringRegex, nil},
+			{`\(`, LiteralStringRegex, Push()},
+			{`\)[imsx]*`, LiteralStringRegex, Pop(1)},
+			Include("string-intp"),
+			{`[\\#()]`, LiteralStringRegex, nil},
+			{`[^\\#()]+`, LiteralStringRegex, nil},
+		},
+		"ab-intp-string": {
+			{`\\[<]`, LiteralStringOther, nil},
+			{`<`, LiteralStringOther, Push()},
+			{`>`, LiteralStringOther, Pop(1)},
+			Include("string-intp-escaped"),
+			{`[\\#<>]`, LiteralStringOther, nil},
+			{`[^\\#<>]+`, LiteralStringOther, nil},
+		},
+		"ab-string": {
+			{`\\[\\<>]`, LiteralStringOther, nil},
+			{`<`, LiteralStringOther, Push()},
+			{`>`, LiteralStringOther, Pop(1)},
+			{`[\\#<>]`, LiteralStringOther, nil},
+			{`[^\\#<>]+`, LiteralStringOther, nil},
+		},
+		"ab-regex": {
+			{`\\[\\<>]`, LiteralStringRegex, nil},
+			{`<`, LiteralStringRegex, Push()},
+			{`>[imsx]*`, LiteralStringRegex, Pop(1)},
+			Include("string-intp"),
+			{`[\\#<>]`, LiteralStringRegex, nil},
+			{`[^\\#<>]+`, LiteralStringRegex, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/c/csharp.go

@@ -0,0 +1,51 @@
+package c
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// CSharp lexer.
+var CSharp = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "C#",
+		Aliases:   []string{"csharp", "c#"},
+		Filenames: []string{"*.cs"},
+		MimeTypes: []string{"text/x-csharp"},
+		DotAll:    true,
+		EnsureNL:  true,
+	},
+	Rules{
+		"root": {
+			{`^\s*\[.*?\]`, NameAttribute, nil},
+			{`[^\S\n]+`, Text, nil},
+			{`\\\n`, Text, nil},
+			{`//.*?\n`, CommentSingle, nil},
+			{`/[*].*?[*]/`, CommentMultiline, nil},
+			{`\n`, Text, nil},
+			{`[~!%^&*()+=|\[\]:;,.<>/?-]`, Punctuation, nil},
+			{`[{}]`, Punctuation, nil},
+			{`@"(""|[^"])*"`, LiteralString, nil},
+			{`\$@?"(""|[^"])*"`, LiteralString, nil},
+			{`"(\\\\|\\"|[^"\n])*["\n]`, LiteralString, nil},
+			{`'\\.'|'[^\\]'`, LiteralStringChar, nil},
+			{`[0-9](\.[0-9]*)?([eE][+-][0-9]+)?[flFLdD]?|0[xX][0-9a-fA-F]+[Ll]?`, LiteralNumber, nil},
+			{`#[ \t]*(if|endif|else|elif|define|undef|line|error|warning|region|endregion|pragma)\b.*?\n`, CommentPreproc, nil},
+			{`\b(extern)(\s+)(alias)\b`, ByGroups(Keyword, Text, Keyword), nil},
+			{`(abstract|as|async|await|base|break|by|case|catch|checked|const|continue|default|delegate|do|else|enum|event|explicit|extern|false|finally|fixed|for|foreach|goto|if|implicit|in|interface|internal|is|let|lock|new|null|on|operator|out|override|params|private|protected|public|readonly|ref|return|sealed|sizeof|stackalloc|static|switch|this|throw|true|try|typeof|unchecked|unsafe|virtual|void|while|get|set|new|partial|yield|add|remove|value|alias|ascending|descending|from|group|into|orderby|select|thenby|where|join|equals)\b`, Keyword, nil},
+			{`(global)(::)`, ByGroups(Keyword, Punctuation), nil},
+			{`(bool|byte|char|decimal|double|dynamic|float|int|long|object|sbyte|short|string|uint|ulong|ushort|var)\b\??`, KeywordType, nil},
+			{`(class|struct)(\s+)`, ByGroups(Keyword, Text), Push("class")},
+			{`(namespace|using)(\s+)`, ByGroups(Keyword, Text), Push("namespace")},
+			{`@?[_a-zA-Z]\w*`, Name, nil},
+		},
+		"class": {
+			{`@?[_a-zA-Z]\w*`, NameClass, Pop(1)},
+			Default(Pop(1)),
+		},
+		"namespace": {
+			{`(?=\()`, Text, Pop(1)},
+			{`(@?[_a-zA-Z]\w*|\.)+`, NameNamespace, Pop(1)},
+		},
+	},
+))