3.3.2 (#530)

* chore: trivial Makefile changes

Trivial `Makefile` changes regarding file pathing.

* chore: build flags

- Passes `-trimpath` flag to build tasks

- Creates `make ci` task and modifies `travis.yml` to use it

- Bumps version to `3.3.2`

.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

@@ -2,3 +2,10 @@ language: go
 
 go:
   - 1.13.x
+
+env:
+  - GO111MODULE=on
+
+install: true
+
+script: make ci

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)
+	$(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) $@
+
+# cheat-linux-amd64
+$(dist_dir)/cheat-linux-amd64: prepare
+	GOARCH=amd64 GOOS=linux \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@
+
+# cheat-linux-arm5
+$(dist_dir)/cheat-linux-arm5: prepare
+	GOARCH=arm GOOS=linux GOARM=5 \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@
+
+# cheat-linux-arm6
+$(dist_dir)/cheat-linux-arm6: prepare
+	GOARCH=arm GOOS=linux GOARM=6 \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@
+
+# cheat-linux-arm7
+$(dist_dir)/cheat-linux-arm7: prepare
+	GOARCH=arm GOOS=linux GOARM=7 \
+	$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@
+
+# cheat-windows-amd64
+$(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) 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
+
+## 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

@@ -125,6 +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
 -----
@@ -178,11 +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
 
+# 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"
+cd $APPDIR
-go clean && go generate && go build -mod vendor
-mv "$APPDIR/cmd/cheat/cheat" "$APPDIR/dist/cheat"
 
-# display a build checksum
+make
-md5sum "$APPDIR/dist/cheat"

bin/build_release.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-
-# locate the cheat 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 -mod vendor -o \
-  "$APPDIR/dist/cheat-darwin-amd64"  "$APPDIR/cmd/cheat"
-
-env GOOS=linux   GOARCH=amd64 go build -mod vendor -o \
-  "$APPDIR/dist/cheat-linux-amd64"   "$APPDIR/cmd/cheat"
-
-env GOOS=windows GOARCH=amd64 go build -mod vendor -o \
-  "$APPDIR/dist/cheat-win-amd64.exe" "$APPDIR/cmd/cheat"

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

@@ -6,7 +6,6 @@ import (
 	"strings"
 
 	"github.com/alecthomas/chroma/quick"
-	"github.com/mattn/go-isatty"
 
 	"github.com/cheat/cheat/internal/config"
 	"github.com/cheat/cheat/internal/sheets"
@@ -44,20 +43,7 @@ func cmdView(opts map[string]interface{}, conf config.Config) {
 		os.Exit(0)
 	}
 
-	// apply colorization if so configured ...
+	if !conf.Color(opts) {
-	colorize := conf.Colorize
-
-	// ... or if --colorized were passed ...
-	if opts["--colorize"] == true {
-		colorize = true
-	}
-
-	// ... unless we're outputting to a non-TTY
-	if !isatty.IsTerminal(os.Stdout.Fd()) && !isatty.IsCygwinTerminal(os.Stdout.Fd()) {
-		colorize = false
-	}
-
-	if !colorize {
 		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 = "3.0.3"
+const version = "3.3.2"
 
 func main() {
 
@@ -39,7 +39,7 @@ func main() {
 	}
 
 	// 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 +76,15 @@ 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
@@ -61,5 +61,15 @@ cheatpaths:
     path: ~/.dotfiles/cheat/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
@@ -52,3 +52,13 @@ cheatpaths:
     path: ~/.dotfiles/cheat/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

@@ -3,13 +3,12 @@ module github.com/cheat/cheat
 go 1.13
 
 require (
-	github.com/alecthomas/chroma v0.6.7
+	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 v0.0.10
+	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
-	github.com/tj/front v0.0.0-20170212063142-739be213b0a1
+	gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0
-	gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0 // indirect
+	gopkg.in/yaml.v2 v2.2.8
-	gopkg.in/yaml.v2 v2.2.4
 )

go.sum

@@ -1,18 +1,12 @@
-github.com/GeertJohan/go.incremental v1.0.0/go.mod h1:6fAjUhbVuX1KcMD3c8TEgVUqmo4seqhv0i0kdATSkM0=
-github.com/GeertJohan/go.rice v1.0.0/go.mod h1:eH6gbSOAUv07dQuZVnBmoDP8mgsM1rtixis4Tib9if0=
-github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
 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 v0.6.7 h1:1hKci+AyKOxJrugR9veaocu9DQGR2/GecI72BpaO0Rg=
+github.com/alecthomas/chroma v0.7.1 h1:G1i02OhUbRi2nJxcNkwJaY/J1gHXj9tt72qN6ZouLFQ=
-github.com/alecthomas/chroma v0.6.7/go.mod h1:zVlgtbRS7BJDrDY9SB238RmpoCBCYFlLmcfZ3durxTk=
+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 v0.1.17-0.20190424132513-439c674f7ae0/go.mod h1:+inYUSluD+p4L8KdviBSgzcqEjUQOfC5fQDRFuc36lI=
 github.com/alecthomas/kong v0.2.1-0.20190708041108-0548c6b1afae/go.mod h1:+inYUSluD+p4L8KdviBSgzcqEjUQOfC5fQDRFuc36lI=
-github.com/alecthomas/kong-hcl v0.1.8-0.20190615233001-b21fea9723c8/go.mod h1:MRgZdU3vrFd05IQ89AxUZ0aYdF39BYoNFa324SodPCA=
 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/daaku/go.zipexe v1.0.0/go.mod h1:z8IiR6TsVLEYKwXAoE/I+8ys/sDkgTzSL0CLnGVd57E=
 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=
@@ -22,25 +16,17 @@ 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/gorilla/csrf v1.6.0/go.mod h1:7tSf8kmjNYr7IWDCYhd3U8Ck34iQ/Yw5CJu7bAkHEGI=
-github.com/gorilla/handlers v1.4.1/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/OAirnOIQ=
-github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
-github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
-github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
-github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 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 v0.0.10 h1:qxFzApOv4WsAL965uUPIsXzAKCZxN2p9UqdhFS4ZW10=
+github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
-github.com/mattn/go-isatty v0.0.10/go.mod h1:qgIWMr58cqv1PHHyhnkY9lrL7etaEgOFcMEpPG5Rm84=
+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/nkovacs/streamquote v0.0.0-20170412213628-49af9bddb229/go.mod h1:0aYXnNPJ8l7uZxf45rWW1a/uME32OF0rhiYGNQ2oF2E=
-github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 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=
@@ -50,17 +36,13 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 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=
-github.com/tj/front v0.0.0-20170212063142-739be213b0a1 h1:lA+aPRvltlx2fwv/BnxyYSDQo3pIeqzHgMO5GvK0T9E=
-github.com/tj/front v0.0.0-20170212063142-739be213b0a1/go.mod h1:deJrtusCTptAW4EUn5vBLpl3dhNqPqUwEjWJz5UNxpQ=
-github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
-github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
 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 v0.0.0-20191008105621-543471e840be h1:QAcqgptGM8IQBC9K/RC4o+O9YmqEm0diQn9QmZw/0mU=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42 h1:vEOn+mP2zCOVzKckCZy6YsCtDblrpj/w7B9nxGNELpg=
-golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+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 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
-gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+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`
+	Name     string   `yaml:"name"`
-	Path     string   `yaml:path`
+	Path     string   `yaml:"path"`
-	ReadOnly bool     `yaml:readonly`
+	ReadOnly bool     `yaml:"readonly"`
-	Tags     []string `yaml:tags`
+	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`
+	Colorize   bool           `yaml:"colorize"`
-	Editor     string         `yaml:editor`
+	Editor     string         `yaml:"editor"`
-	Cheatpaths []cp.Cheatpath `yaml:cheatpaths`
+	Cheatpaths []cp.Cheatpath `yaml:"cheatpaths"`
-	Style      string         `yaml:style`
+	Style      string         `yaml:"style"`
-	Formatter  string         `yaml:formatter`
+	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 +39,52 @@ 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 {
+			expanded, err = filepath.EvalSymlinks(expanded)
+			if err != nil {
+				return Config{}, fmt.Errorf(
+					"failed to resolve symlink: %s, %v",
+					expanded,
+					err,
+				)
+			}
+		}
+
 		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/path.go

@@ -23,36 +23,21 @@ func Path(sys string) (string, error) {
 		}
 
 		return expanded, nil
+	}
 
-		// OSX config paths
+	switch sys {
-	} else if sys == "darwin" {
+	case "darwin", "linux", "freebsd":
-
 		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"),
 		}
-
+	case "windows":
-		// 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")),
 		}
-
+	default:
-		// Unsupported platforms
-	} else {
 		return "", 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
+	// parse the cheatsheet frontmatter
-	var fm frontmatter
+	text, fm, err := frontmatter.Parse(string(markdown))
-	text, err := front.Unmarshal(markdown, &fm)
 	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/*
+				// ignore hidden files and directories. Otherwise, we'll likely load
-				if strings.HasPrefix(title, ".") {
+				// .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/.golangci.yml

@@ -15,6 +15,11 @@ linters:
     - gocyclo
     - dupl
     - gochecknoglobals
+    - funlen
+    - godox
+    - wsl
+    - gomnd
+    - gocognit
 
 linters-settings:
   govet:
@@ -43,3 +48,8 @@ issues:
     - '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/.travis.yml

@@ -1,8 +1,10 @@
 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 v1.15.0
+  - 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:

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

@@ -44,17 +44,17 @@ 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 | Java, JavaScript, JSON, Julia, Jungle
+J | J, Java, JavaScript, JSON, Julia, Jungle
 K | Kotlin
 L | Lighttpd configuration file, LLVM, Lua
-M | Mako, markdown, Mason, Mathematica, Matlab, MiniZinc, Modula-2, MonkeyC, MorrowindScript, Myghty, MySQL
+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, Snobol, Solidity, SPARQL, SQL, SquidConf, Swift, SYSTEMD, systemverilog
+S | Sass, Scala, Scheme, Scilab, SCSS, Smalltalk, Smarty, SML, Snobol, Solidity, SPARQL, SQL, SquidConf, Swift, SYSTEMD, systemverilog
-T | TASM, Tcl, Tcsh, Termcap, Terminfo, Terraform, TeX, Thrift, TOML, TradingView, Transact-SQL, Turing, Turtle, Twig, TypeScript, TypoScript, TypoScriptCssData, TypoScriptHtmlData
+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
@@ -183,6 +183,7 @@ following constructor options:
 - `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.
 

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

@@ -34,7 +34,7 @@ type insertion struct {
 	tokens     []Token
 }
 
-func (d *delegatingLexer) Tokenise(options *TokeniseOptions, text string) (Iterator, error) {
+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

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

@@ -6,6 +6,7 @@ import (
 
 	"github.com/alecthomas/chroma"
 	"github.com/alecthomas/chroma/formatters/html"
+	"github.com/alecthomas/chroma/formatters/svg"
 )
 
 var (
@@ -19,7 +20,8 @@ var (
 		return nil
 	}))
 	// Default HTML formatter outputs self-contained HTML.
-	htmlFull = Register("html", html.New(html.Standalone(), html.WithClasses())) // nolint
+	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.

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

@@ -14,32 +14,56 @@ import (
 type Option func(f *Formatter)
 
 // Standalone configures the HTML formatter for generating a standalone HTML document.
-func Standalone() Option { return func(f *Formatter) { f.standalone = true } }
+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() Option { return func(f *Formatter) { f.Classes = true } }
+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
+// PreventSurroundingPre prevents the surrounding pre tags around the generated code.
-func PreventSurroundingPre() Option { return func(f *Formatter) { f.preventSurroundingPre = true } }
+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() Option {
+func WithLineNumbers(b bool) Option {
 	return func(f *Formatter) {
-		f.lineNumbers = true
+		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() Option {
+func LineNumbersInTable(b bool) Option {
 	return func(f *Formatter) {
-		f.lineNumbersInTable = true
+		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
 	}
 }
 
@@ -64,6 +88,7 @@ func BaseLineNumber(n int) Option {
 func New(options ...Option) *Formatter {
 	f := &Formatter{
 		baseLineNumber: 1,
+		preWrapper:     defaultPreWrapper,
 	}
 	for _, option := range options {
 		option(f)
@@ -71,15 +96,57 @@ func New(options ...Option) *Formatter {
 	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
-	preventSurroundingPre bool
+	preWrapper          PreWrapper
 	tabWidth            int
 	lineNumbers         bool
 	lineNumbersInTable  bool
+	linkableLineNumbers bool
+	lineNumbersIDPrefix string
 	highlightRanges     highlightRanges
 	baseLineNumber      int
 }
@@ -91,11 +158,6 @@ 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) {
-	defer func() {
-		if perr := recover(); perr != nil {
-			err = perr.(error)
-		}
-	}()
 	return f.writeHTML(w, style, iterator.Tokens())
 }
 
@@ -134,9 +196,7 @@ func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []chroma.
 		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))
-		if !f.preventSurroundingPre {
+		fmt.Fprintf(w, f.preWrapper.Start(false, f.styleAttr(css, chroma.Background)))
-			fmt.Fprintf(w, "<pre%s>", f.styleAttr(css, chroma.Background))
-		}
 		for index := range lines {
 			line := f.baseLineNumber + index
 			highlight, next := f.shouldHighlight(highlightIndex, line)
@@ -147,22 +207,19 @@ func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []chroma.
 				fmt.Fprintf(w, "<span%s>", f.styleAttr(css, chroma.LineHighlight))
 			}
 
-			fmt.Fprintf(w, "<span%s>%*d\n</span>", f.styleAttr(css, chroma.LineNumbersTable), lineDigits, line)
+			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>")
 			}
 		}
-		if !f.preventSurroundingPre {
+		fmt.Fprint(w, f.preWrapper.End(false))
-			fmt.Fprint(w, "</pre>")
-		}
 		fmt.Fprint(w, "</td>\n")
 		fmt.Fprintf(w, "<td%s>\n", f.styleAttr(css, chroma.LineTableTD, "width:100%"))
 	}
 
-	if !f.preventSurroundingPre {
+	fmt.Fprintf(w, f.preWrapper.Start(true, f.styleAttr(css, chroma.Background)))
-		fmt.Fprintf(w, "<pre%s>", f.styleAttr(css, chroma.Background))
+
-	}
 	highlightIndex = 0
 	for index, tokens := range lines {
 		// 1-based line number.
@@ -176,7 +233,7 @@ func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []chroma.
 		}
 
 		if f.lineNumbers && !wrapInTable {
-			fmt.Fprintf(w, "<span%s>%*d</span>", f.styleAttr(css, chroma.LineNumbers), lineDigits, line)
+			fmt.Fprintf(w, "<span%s%s>%*d</span>", f.styleAttr(css, chroma.LineNumbers), f.lineIDAttribute(line), lineDigits, line)
 		}
 
 		for _, token := range tokens {
@@ -192,9 +249,7 @@ func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []chroma.
 		}
 	}
 
-	if !f.preventSurroundingPre {
+	fmt.Fprintf(w, f.preWrapper.End(true))
-		fmt.Fprint(w, "</pre>")
-	}
 
 	if wrapInTable {
 		fmt.Fprint(w, "</td></tr></table>\n")
@@ -209,6 +264,13 @@ func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []chroma.
 	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] {
@@ -283,6 +345,13 @@ func (f *Formatter) WriteCSS(w io.Writer, style *chroma.Style) error {
 			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))

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/tty_indexed.go

@@ -200,6 +200,7 @@ func findClosest(table *ttyTable, seeking chroma.Colour) chroma.Colour {
 }
 
 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)
@@ -208,16 +209,22 @@ func styleToEscapeSequence(table *ttyTable, style *chroma.Style) map[chroma.Toke
 	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) {
-	defer func() {
-		if perr := recover(); perr != nil {
-			err = perr.(error)
-		}
-	}()
 	theme := styleToEscapeSequence(c.table, style)
 	for token := it(); token != chroma.EOF; token = it() {
 		// TODO: Cache token lookups?

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

@@ -11,6 +11,7 @@ import (
 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() {

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

@@ -1,22 +1,19 @@
 module github.com/alecthomas/chroma
 
 require (
-	github.com/GeertJohan/go.rice v1.0.0
 	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/kong-hcl v0.1.8-0.20190615233001-b21fea9723c8
 	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/gorilla/csrf v1.6.0
-	github.com/gorilla/handlers v1.4.1
-	github.com/gorilla/mux v1.7.3
 	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
+	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

@@ -1,20 +1,11 @@
-github.com/GeertJohan/go.incremental v1.0.0/go.mod h1:6fAjUhbVuX1KcMD3c8TEgVUqmo4seqhv0i0kdATSkM0=
-github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
 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/go.rice v1.0.1-0.20190719113735-961b99d742e7 h1:0cMlP9evwgTzs5JUe2C/3rLttYjmRm0kbz9fdGBIV1E=
-github.com/alecthomas/go.rice v1.0.1-0.20190719113735-961b99d742e7/go.mod h1:af5vUNlDNkCjOZeSGFgIJxDje9qdjsO6hshx0gTmZt4=
-github.com/alecthomas/kong v0.1.17-0.20190424132513-439c674f7ae0/go.mod h1:+inYUSluD+p4L8KdviBSgzcqEjUQOfC5fQDRFuc36lI=
 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/kong-hcl v0.1.8-0.20190615233001-b21fea9723c8 h1:atLL+K8Hg0e8863K2X+k7qu+xz3M2a/mWFIACAPf55M=
-github.com/alecthomas/kong-hcl v0.1.8-0.20190615233001-b21fea9723c8/go.mod h1:MRgZdU3vrFd05IQ89AxUZ0aYdF39BYoNFa324SodPCA=
 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/daaku/go.zipexe v1.0.0 h1:VSOgZtH418pH9L16hC/JrgSNJbbAL26pj7lmD1+CGdY=
-github.com/daaku/go.zipexe v1.0.0/go.mod h1:z8IiR6TsVLEYKwXAoE/I+8ys/sDkgTzSL0CLnGVd57E=
 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=
@@ -22,25 +13,11 @@ 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/gorilla/csrf v1.6.0 h1:60oN1cFdncCE8tjwQ3QEkFND5k37lQPcRjnlvm7CIJ0=
-github.com/gorilla/csrf v1.6.0/go.mod h1:7tSf8kmjNYr7IWDCYhd3U8Ck34iQ/Yw5CJu7bAkHEGI=
-github.com/gorilla/handlers v1.4.1 h1:BHvcRGJe/TrL+OqFxoKQGddTgeibiOjaBssV5a/N9sw=
-github.com/gorilla/handlers v1.4.1/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/OAirnOIQ=
-github.com/gorilla/mux v1.7.3 h1:gnP5JzjVOuiZD07fKKToCAOjS0yOpj/qPETTXCCS6hw=
-github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
-github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ=
-github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
-github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
-github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
-github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 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/nkovacs/streamquote v1.0.0/go.mod h1:BN+NaZ2CmdKqUuTUXUEm9j95B2TRbpOWpxbJYzzgUsc=
-github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
-github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 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=
@@ -52,7 +29,5 @@ github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1
 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=
-github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
-github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
 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/lexers/README.md

@@ -10,10 +10,28 @@ Run the tests as normal:
 go test ./lexers
 ```
 
-## Updating the existing tests
+## 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.
 
-You can regenerate all the test outputs
+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/applescript.go

@@ -31,7 +31,7 @@ var Applescript = internal.Register(MustNewLexer(
 			{`\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|whith|with timeout( of)?|with transaction|by|continue|end|its?|me|my|return|of|as)\b`, Keyword, 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},

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

@@ -25,7 +25,7 @@ var Ballerina = internal.Register(MustNewLexer(
 			{`(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")},
+			{`(import)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
 			{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
 			{`'\\.'|'[^\\]'|'\\u[0-9a-fA-F]{4}'`, LiteralStringChar, nil},
 			{`(\.)((?:[^\W\d]|\$)[\w$]*)`, ByGroups(Operator, NameAttribute), nil},

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

@@ -53,7 +53,7 @@ var Bash = internal.Register(MustNewLexer(
 			{`&`, Punctuation, nil},
 			{`\|`, Punctuation, nil},
 			{`\s+`, Text, nil},
-			{`\d+\b`, LiteralNumber, nil},
+			{`\d+(?= |$)`, LiteralNumber, nil},
 			{"[^=\\s\\[\\]{}()$\"\\'`\\\\<&|;]+", Text, nil},
 			{`<`, Text, nil},
 		},

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/c/cpp.go

@@ -24,7 +24,8 @@ var CPP = internal.Register(MustNewLexer(
 			{`(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},
-			{`(\.([0-9](?:'?[0-9]+)*)([eE][+-]?([0-9]('?[0-9]+)*))?|([0-9]('?[0-9]+)*)(([eE][+-]?([0-9]('?[0-9]+)*))|\.([0-9]('?[0-9]+)*)?([eE][+-]?([0-9]('?[0-9]+)*))?)|0[xX](\.([0-9A-Fa-f]('?[0-9A-Fa-f]+)*)([pP][-+]?([0-9]('?[0-9]+)*))?|([0-9A-Fa-f]('?[0-9A-Fa-f]+)*)(([pP][-+]?([0-9]('?[0-9]+)*))|\.([0-9A-Fa-f]('?[0-9A-Fa-f]+)*)?([pP][-+]?([0-9]('?[0-9]+)*))?)))[fFLlUu]*`, LiteralNumberFloat, 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},

vendor/github.com/alecthomas/chroma/lexers/d/docker.go

@@ -22,7 +22,7 @@ var Docker = internal.Register(MustNewLexer(
 			{`(ONBUILD)((?:\s*\\?\s*))`, ByGroups(Keyword, Using(b.Bash)), nil},
 			{`(HEALTHCHECK)(((?:\s*\\?\s*)--\w+=\w+(?:\s*\\?\s*))*)`, ByGroups(Keyword, Using(b.Bash)), nil},
 			{`(VOLUME|ENTRYPOINT|CMD|SHELL)((?:\s*\\?\s*))(\[.*?\])`, ByGroups(Keyword, Using(b.Bash), Using(j.JSON)), nil},
-			{`(LABEL|ENV|ARG)(((?:\s*\\?\s*)\w+=\w+(?:\s*\\?\s*))*)`, ByGroups(Keyword, Using(b.Bash)), nil},
+			{`(LABEL|ENV|ARG)((?:(?:\s*\\?\s*)\w+=\w+(?:\s*\\?\s*))*)`, ByGroups(Keyword, Using(b.Bash)), nil},
 			{`((?:FROM|MAINTAINER|EXPOSE|WORKDIR|USER|STOPSIGNAL)|VOLUME)\b(.*)`, ByGroups(Keyword, LiteralString), nil},
 			{`((?:RUN|CMD|ENTRYPOINT|ENV|ARG|LABEL|ADD|COPY))`, Keyword, nil},
 			{`(.*\\\n)*.+`, Using(b.Bash), nil},

vendor/github.com/alecthomas/chroma/lexers/h/http.go

@@ -38,7 +38,6 @@ func httpContentBlock(groups []string, lexer Lexer) Iterator {
 		{Generic, groups[0]},
 	}
 	return Literator(tokens...)
-
 }
 
 func httpHeaderBlock(groups []string, lexer Lexer) Iterator {
@@ -66,7 +65,7 @@ func httpBodyContentTypeLexer(lexer Lexer) Lexer { return &httpBodyContentTyper{
 
 type httpBodyContentTyper struct{ Lexer }
 
-func (d *httpBodyContentTyper) Tokenise(options *TokeniseOptions, text string) (Iterator, error) {
+func (d *httpBodyContentTyper) Tokenise(options *TokeniseOptions, text string) (Iterator, error) { // nolint: gocognit
 	var contentType string
 	var isContentType bool
 	var subIterator Iterator
@@ -123,9 +122,7 @@ func (d *httpBodyContentTyper) Tokenise(options *TokeniseOptions, text string) (
 					return EOF
 				}
 			}
-
 		}
 		return token
-
 	}, nil
 }

vendor/github.com/alecthomas/chroma/lexers/internal/api.go

@@ -1,3 +1,4 @@
+// Package internal contains common API functions and structures shared between lexer packages.
 package internal
 
 import (

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

@@ -0,0 +1,73 @@
+package j
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// J lexer.
+var J = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "J",
+		Aliases:   []string{"j"},
+		Filenames: []string{"*.ijs"},
+		MimeTypes: []string{"text/x-j"},
+	},
+	Rules{
+		"root": {
+			{`#!.*$`, CommentPreproc, nil},
+			{`NB\..*`, CommentSingle, nil},
+			{`\n+\s*Note`, CommentMultiline, Push("comment")},
+			{`\s*Note.*`, CommentSingle, nil},
+			{`\s+`, Text, nil},
+			{`'`, LiteralString, Push("singlequote")},
+			{`0\s+:\s*0|noun\s+define\s*$`, NameEntity, Push("nounDefinition")},
+			{`(([1-4]|13)\s+:\s*0|(adverb|conjunction|dyad|monad|verb)\s+define)\b`, NameFunction, Push("explicitDefinition")},
+			{Words(``, `\b[a-zA-Z]\w*\.`, `for_`, `goto_`, `label_`), NameLabel, nil},
+			{Words(``, `\.`, `assert`, `break`, `case`, `catch`, `catchd`, `catcht`, `continue`, `do`, `else`, `elseif`, `end`, `fcase`, `for`, `if`, `return`, `select`, `throw`, `try`, `while`, `whilst`), NameLabel, nil},
+			{`\b[a-zA-Z]\w*`, NameVariable, nil},
+			{Words(``, ``, `ARGV`, `CR`, `CRLF`, `DEL`, `Debug`, `EAV`, `EMPTY`, `FF`, `JVERSION`, `LF`, `LF2`, `Note`, `TAB`, `alpha17`, `alpha27`, `apply`, `bind`, `boxopen`, `boxxopen`, `bx`, `clear`, `cutLF`, `cutopen`, `datatype`, `def`, `dfh`, `drop`, `each`, `echo`, `empty`, `erase`, `every`, `evtloop`, `exit`, `expand`, `fetch`, `file2url`, `fixdotdot`, `fliprgb`, `getargs`, `getenv`, `hfd`, `inv`, `inverse`, `iospath`, `isatty`, `isutf8`, `items`, `leaf`, `list`, `nameclass`, `namelist`, `names`, `nc`, `nl`, `on`, `pick`, `rows`, `script`, `scriptd`, `sign`, `sminfo`, `smoutput`, `sort`, `split`, `stderr`, `stdin`, `stdout`, `table`, `take`, `timespacex`, `timex`, `tmoutput`, `toCRLF`, `toHOST`, `toJ`, `tolower`, `toupper`, `type`, `ucp`, `ucpcount`, `usleep`, `utf8`, `uucp`), NameFunction, nil},
+			{`=[.:]`, Operator, nil},
+			{"[-=+*#$%@!~`^&\";:.,<>{}\\[\\]\\\\|/]", Operator, nil},
+			{`[abCdDeEfHiIjLMoprtT]\.`, KeywordReserved, nil},
+			{`[aDiLpqsStux]\:`, KeywordReserved, nil},
+			{`(_[0-9])\:`, KeywordConstant, nil},
+			{`\(`, Punctuation, Push("parentheses")},
+			Include("numbers"),
+		},
+		"comment": {
+			{`[^)]`, CommentMultiline, nil},
+			{`^\)`, CommentMultiline, Pop(1)},
+			{`[)]`, CommentMultiline, nil},
+		},
+		"explicitDefinition": {
+			{`\b[nmuvxy]\b`, NameDecorator, nil},
+			Include("root"),
+			{`[^)]`, Name, nil},
+			{`^\)`, NameLabel, Pop(1)},
+			{`[)]`, Name, nil},
+		},
+		"numbers": {
+			{`\b_{1,2}\b`, LiteralNumber, nil},
+			{`_?\d+(\.\d+)?(\s*[ejr]\s*)_?\d+(\.?=\d+)?`, LiteralNumber, nil},
+			{`_?\d+\.(?=\d+)`, LiteralNumberFloat, nil},
+			{`_?\d+x`, LiteralNumberIntegerLong, nil},
+			{`_?\d+`, LiteralNumberInteger, nil},
+		},
+		"nounDefinition": {
+			{`[^)]`, LiteralString, nil},
+			{`^\)`, NameLabel, Pop(1)},
+			{`[)]`, LiteralString, nil},
+		},
+		"parentheses": {
+			{`\)`, Punctuation, Pop(1)},
+			Include("explicitDefinition"),
+			Include("root"),
+		},
+		"singlequote": {
+			{`[^']`, LiteralString, nil},
+			{`''`, LiteralString, nil},
+			{`'`, LiteralString, Pop(1)},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/j/java.go

@@ -20,7 +20,7 @@ var Java = internal.Register(MustNewLexer(
 			{`//.*?\n`, CommentSingle, nil},
 			{`/\*.*?\*/`, CommentMultiline, nil},
 			{`(assert|break|case|catch|continue|default|do|else|finally|for|if|goto|instanceof|new|return|switch|this|throw|try|while)\b`, Keyword, nil},
-			{`((?:(?:[^\W\d]|\$)[\w.\[\]$<>]*\s+)+?)((?:[^\W\d]|\$)[\w$]*)(\s*)`, ByGroups(UsingSelf("root"), NameFunction, Text, Operator), nil},
+			{`((?:(?:[^\W\d]|\$)[\w.\[\]$<>]*\s+)+?)((?:[^\W\d]|\$)[\w$]*)(\s*)(\()`, ByGroups(UsingSelf("root"), NameFunction, Text, Operator), nil},
 			{`@[^\W\d][\w.]*`, NameDecorator, nil},
 			{`(abstract|const|enum|extends|final|implements|native|private|protected|public|static|strictfp|super|synchronized|throws|transient|volatile)\b`, KeywordDeclaration, nil},
 			{`(boolean|byte|char|double|float|int|long|short|void)\b`, KeywordType, nil},
@@ -30,7 +30,7 @@ var Java = internal.Register(MustNewLexer(
 			{`(import(?:\s+static)?)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
 			{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
 			{`'\\.'|'[^\\]'|'\\u[0-9a-fA-F]{4}'`, LiteralStringChar, nil},
-			{`(\.)((?:[^\W\d]|\$)[\w$]*)`, ByGroups(Punctuation, NameAttribute), nil},
+			{`(\.)((?:[^\W\d]|\$)[\w$]*)`, 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},
@@ -38,8 +38,7 @@ var Java = internal.Register(MustNewLexer(
 			{`0[bB][01][01_]*[lL]?`, LiteralNumberBin, nil},
 			{`0[0-7_]+[lL]?`, LiteralNumberOct, nil},
 			{`0|[1-9][0-9_]*[lL]?`, LiteralNumberInteger, nil},
-			{`[~^*!%&<>|+=:/?-]`, Operator, nil},
+			{`[~^*!%&\[\](){}<>|+=:;,./?-]`, Operator, nil},
-			{`[\[\](){};,.]`, Punctuation, nil},
 			{`\n`, Text, nil},
 		},
 		"class": {

vendor/github.com/alecthomas/chroma/lexers/m/mlir.go

@@ -0,0 +1,43 @@
+package m
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// MLIR lexer.
+var Mlir = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "MLIR",
+		Aliases:   []string{"mlir"},
+		Filenames: []string{"*.mlir"},
+		MimeTypes: []string{"text/x-mlir"},
+	},
+	Rules{
+		"root": {
+			Include("whitespace"),
+			{`c?"[^"]*?"`, LiteralString, nil},
+			{`\^([-a-zA-Z$._][\w\-$.0-9]*)\s*`, NameLabel, nil},
+			{`([\w\d_$.]+)\s*=`, NameLabel, nil},
+			Include("keyword"),
+			{`->`, Punctuation, nil},
+			{`@([\w_][\w\d_$.]*)`, NameFunction, nil},
+			{`[%#][\w\d_$.]+`, NameVariable, nil},
+			{`([1-9?][\d?]*\s*x)+`, LiteralNumber, nil},
+			{`0[xX][a-fA-F0-9]+`, LiteralNumber, nil},
+			{`-?\d+(?:[.]\d+)?(?:[eE][-+]?\d+(?:[.]\d+)?)?`, LiteralNumber, nil},
+			{`[=<>{}\[\]()*.,!:]|x\b`, Punctuation, nil},
+			{`[\w\d]+`, Text, nil},
+		},
+		"whitespace": {
+			{`(\n|\s)+`, Text, nil},
+			{`//.*?\n`, Comment, nil},
+		},
+		"keyword": {
+			{Words(``, ``, `constant`, `return`), KeywordType, nil},
+			{Words(``, ``, `func`, `loc`, `memref`, `tensor`, `vector`), KeywordType, nil},
+			{`bf16|f16|f32|f64|index`, Keyword, nil},
+			{`i[1-9]\d*`, Keyword, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/m/mysql.go

@@ -26,7 +26,7 @@ var MySQL = internal.Register(MustNewLexer(
 			{`((?:_[a-z0-9]+)?)(")`, ByGroups(LiteralStringAffix, LiteralStringDouble), Push("double-string")},
 			{"[+*/<>=~!@#%^&|`?-]", Operator, nil},
 			{`\b(tinyint|smallint|mediumint|int|integer|bigint|date|datetime|time|bit|bool|tinytext|mediumtext|longtext|text|tinyblob|mediumblob|longblob|blob|float|double|double\s+precision|real|numeric|dec|decimal|timestamp|year|char|varchar|varbinary|varcharacter|enum|set)(\b\s*)(\()?`, ByGroups(KeywordType, Text, Punctuation), nil},
-			{`\b(add|all|alter|analyze|and|as|asc|asensitive|before|between|bigint|binary|blob|both|by|call|cascade|case|change|char|character|check|collate|column|condition|constraint|continue|convert|create|cross|current_date|current_time|current_timestamp|current_user|cursor|database|databases|day_hour|day_microsecond|day_minute|day_second|dec|decimal|declare|default|delayed|delete|desc|describe|deterministic|distinct|distinctrow|div|double|drop|dual|each|else|elseif|enclosed|escaped|exists|exit|explain|fetch|flush|float|float4|float8|for|force|foreign|from|fulltext|grant|group|having|high_priority|hour_microsecond|hour_minute|hour_second|if|ignore|in|index|infile|inner|inout|insensitive|insert|int|int1|int2|int3|int4|int8|integer|interval|into|is|iterate|join|key|keys|kill|leading|leave|left|like|limit|lines|load|localtime|localtimestamp|lock|long|loop|low_priority|match|minute_microsecond|minute_second|mod|modifies|natural|no_write_to_binlog|not|numeric|on|optimize|option|optionally|or|order|out|outer|outfile|precision|primary|procedure|purge|raid0|read|reads|real|references|regexp|release|rename|repeat|replace|require|restrict|return|revoke|right|rlike|schema|schemas|second_microsecond|select|sensitive|separator|set|show|smallint|soname|spatial|specific|sql|sql_big_result|sql_calc_found_rows|sql_small_result|sqlexception|sqlstate|sqlwarning|ssl|starting|straight_join|table|terminated|then|to|trailing|trigger|undo|union|unique|unlock|unsigned|update|usage|use|using|utc_date|utc_time|utc_timestamp|values|varying|when|where|while|with|write|x509|xor|year_month|zerofill)\b`, Keyword, nil},
+			{`\b(add|all|alter|analyze|and|as|asc|asensitive|before|between|bigint|binary|blob|both|by|call|cascade|case|change|char|character|check|collate|column|condition|constraint|continue|convert|create|cross|current_date|current_time|current_timestamp|current_user|cursor|database|databases|day_hour|day_microsecond|day_minute|day_second|dec|decimal|declare|default|delayed|delete|desc|describe|deterministic|distinct|distinctrow|div|double|drop|dual|each|else|elseif|enclosed|escaped|exists|exit|explain|fetch|flush|float|float4|float8|for|force|foreign|from|fulltext|grant|group|having|high_priority|hour_microsecond|hour_minute|hour_second|identified|if|ignore|in|index|infile|inner|inout|insensitive|insert|int|int1|int2|int3|int4|int8|integer|interval|into|is|iterate|join|key|keys|kill|leading|leave|left|like|limit|lines|load|localtime|localtimestamp|lock|long|loop|low_priority|match|minute_microsecond|minute_second|mod|modifies|natural|no_write_to_binlog|not|numeric|on|optimize|option|optionally|or|order|out|outer|outfile|precision|primary|privileges|procedure|purge|raid0|read|reads|real|references|regexp|release|rename|repeat|replace|require|restrict|return|revoke|right|rlike|schema|schemas|second_microsecond|select|sensitive|separator|set|show|smallint|soname|spatial|specific|sql|sql_big_result|sql_calc_found_rows|sql_small_result|sqlexception|sqlstate|sqlwarning|ssl|starting|straight_join|table|terminated|then|to|trailing|trigger|undo|union|unique|unlock|unsigned|update|usage|use|user|using|utc_date|utc_time|utc_timestamp|values|varying|when|where|while|with|write|x509|xor|year_month|zerofill)\b`, Keyword, nil},
 			{`\b(auto_increment|engine|charset|tables)\b`, KeywordPseudo, nil},
 			{`(true|false|null)`, NameConstant, nil},
 			{`([a-z_]\w*)(\s*)(\()`, ByGroups(NameFunction, Text, Punctuation), nil},

vendor/github.com/alecthomas/chroma/lexers/n/nim.go

@@ -16,6 +16,7 @@ var Nim = internal.Register(MustNewLexer(
 	},
 	Rules{
 		"root": {
+			{`#\[[\s\S]*?\]#`, CommentMultiline, nil},
 			{`##.*$`, LiteralStringDoc, nil},
 			{`#.*$`, Comment, nil},
 			{`[*=><+\-/@$~&%!?|\\\[\]]`, Operator, nil},

vendor/github.com/alecthomas/chroma/lexers/p/powershell.go

@@ -22,6 +22,7 @@ var Powershell = internal.Register(MustNewLexer(
 			{`^(\s*#[#\s]*)(\.(?:component|description|example|externalhelp|forwardhelpcategory|forwardhelptargetname|functionality|inputs|link|notes|outputs|parameter|remotehelprunspace|role|synopsis))([^\n]*$)`, ByGroups(Comment, LiteralStringDoc, Comment), nil},
 			{`#[^\n]*?$`, Comment, nil},
 			{`(&lt;|<)#`, CommentMultiline, Push("multline")},
+			{`(?i)([A-Z]:)`, Name, nil},
 			{`@"\n`, LiteralStringHeredoc, Push("heredoc-double")},
 			{`@'\n.*?\n'@`, LiteralStringHeredoc, nil},
 			{"`[\\'\"$@-]", Punctuation, nil},
@@ -30,7 +31,8 @@ var Powershell = internal.Register(MustNewLexer(
 			{`(\$|@@|@)((global|script|private|env):)?\w+`, NameVariable, nil},
 			{`(while|validateset|validaterange|validatepattern|validatelength|validatecount|until|trap|switch|return|ref|process|param|parameter|in|if|global:|function|foreach|for|finally|filter|end|elseif|else|dynamicparam|do|default|continue|cmdletbinding|break|begin|alias|\?|%|#script|#private|#local|#global|mandatory|parametersetname|position|valuefrompipeline|valuefrompipelinebypropertyname|valuefromremainingarguments|helpmessage|try|catch|throw)\b`, Keyword, nil},
 			{`-(and|as|band|bnot|bor|bxor|casesensitive|ccontains|ceq|cge|cgt|cle|clike|clt|cmatch|cne|cnotcontains|cnotlike|cnotmatch|contains|creplace|eq|exact|f|file|ge|gt|icontains|ieq|ige|igt|ile|ilike|ilt|imatch|ine|inotcontains|inotlike|inotmatch|ireplace|is|isnot|le|like|lt|match|ne|not|notcontains|notlike|notmatch|or|regex|replace|wildcard)\b`, Operator, nil},
-			{`(write|where|wait|use|update|unregister|undo|trace|test|tee|take|suspend|stop|start|split|sort|skip|show|set|send|select|scroll|resume|restore|restart|resolve|resize|reset|rename|remove|register|receive|read|push|pop|ping|out|new|move|measure|limit|join|invoke|import|group|get|format|foreach|export|expand|exit|enter|enable|disconnect|disable|debug|cxnew|copy|convertto|convertfrom|convert|connect|complete|compare|clear|checkpoint|aggregate|add)-[a-z_]\w*\b`, NameBuiltin, nil},
+			{`(write|where|watch|wait|use|update|unregister|unpublish|unprotect|unlock|uninstall|undo|unblock|trace|test|tee|take|sync|switch|suspend|submit|stop|step|start|split|sort|skip|show|set|send|select|search|scroll|save|revoke|resume|restore|restart|resolve|resize|reset|request|repair|rename|remove|register|redo|receive|read|push|publish|protect|pop|ping|out|optimize|open|new|move|mount|merge|measure|lock|limit|join|invoke|install|initialize|import|hide|group|grant|get|format|foreach|find|export|expand|exit|enter|enable|edit|dismount|disconnect|disable|deny|debug|cxnew|copy|convertto|convertfrom|convert|connect|confirm|compress|complete|compare|close|clear|checkpoint|block|backup|assert|approve|aggregate|add)-[a-z_]\w*\b`, NameBuiltin, nil},
+			{`(ac|asnp|cat|cd|cfs|chdir|clc|clear|clhy|cli|clp|cls|clv|cnsn|compare|copy|cp|cpi|cpp|curl|cvpa|dbp|del|diff|dir|dnsn|ebp|echo|epal|epcsv|epsn|erase|etsn|exsn|fc|fhx|fl|foreach|ft|fw|gal|gbp|gc|gci|gcm|gcs|gdr|ghy|gi|gjb|gl|gm|gmo|gp|gps|gpv|group|gsn|gsnp|gsv|gu|gv|gwmi|h|history|icm|iex|ihy|ii|ipal|ipcsv|ipmo|ipsn|irm|ise|iwmi|iwr|kill|lp|ls|man|md|measure|mi|mount|move|mp|mv|nal|ndr|ni|nmo|npssc|nsn|nv|ogv|oh|popd|ps|pushd|pwd|r|rbp|rcjb|rcsn|rd|rdr|ren|ri|rjb|rm|rmdir|rmo|rni|rnp|rp|rsn|rsnp|rujb|rv|rvpa|rwmi|sajb|sal|saps|sasv|sbp|sc|select|set|shcm|si|sl|sleep|sls|sort|sp|spjb|spps|spsv|start|sujb|sv|swmi|tee|trcm|type|wget|where|wjb|write)\s`, NameBuiltin, nil},
 			{"\\[[a-z_\\[][\\w. `,\\[\\]]*\\]", NameConstant, nil},
 			{`-[a-z_]\w*`, Name, nil},
 			{`\w+`, Name, nil},

vendor/github.com/alecthomas/chroma/lexers/s/sml.go

@@ -0,0 +1,200 @@
+package s
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// Standard ML lexer.
+var StandardML = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "Standard ML",
+		Aliases:   []string{"sml"},
+		Filenames: []string{"*.sml", "*.sig", "*.fun"},
+		MimeTypes: []string{"text/x-standardml", "application/x-standardml"},
+	},
+	Rules{
+		"whitespace": {
+			{`\s+`, Text, nil},
+			{`\(\*`, CommentMultiline, Push("comment")},
+		},
+		"delimiters": {
+			{`\(|\[|\{`, Punctuation, Push("main")},
+			{`\)|\]|\}`, Punctuation, Pop(1)},
+			{`\b(let|if|local)\b(?!\')`, KeywordReserved, Push("main", "main")},
+			{`\b(struct|sig|while)\b(?!\')`, KeywordReserved, Push("main")},
+			{`\b(do|else|end|in|then)\b(?!\')`, KeywordReserved, Pop(1)},
+		},
+		"core": {
+			{`(_|\}|\{|\)|;|,|\[|\(|\]|\.\.\.)`, Punctuation, nil},
+			{`#"`, LiteralStringChar, Push("char")},
+			{`"`, LiteralStringDouble, Push("string")},
+			{`~?0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
+			{`0wx[0-9a-fA-F]+`, LiteralNumberHex, nil},
+			{`0w\d+`, LiteralNumberInteger, nil},
+			{`~?\d+\.\d+[eE]~?\d+`, LiteralNumberFloat, nil},
+			{`~?\d+\.\d+`, LiteralNumberFloat, nil},
+			{`~?\d+[eE]~?\d+`, LiteralNumberFloat, nil},
+			{`~?\d+`, LiteralNumberInteger, nil},
+			{`#\s*[1-9][0-9]*`, NameLabel, nil},
+			{`#\s*([a-zA-Z][\w']*)`, NameLabel, nil},
+			{"#\\s+([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", NameLabel, nil},
+			{`\b(datatype|abstype)\b(?!\')`, KeywordReserved, Push("dname")},
+			{`(?=\b(exception)\b(?!\'))`, Text, Push("ename")},
+			{`\b(functor|include|open|signature|structure)\b(?!\')`, KeywordReserved, Push("sname")},
+			{`\b(type|eqtype)\b(?!\')`, KeywordReserved, Push("tname")},
+			{`\'[\w\']*`, NameDecorator, nil},
+			{`([a-zA-Z][\w']*)(\.)`, NameNamespace, Push("dotted")},
+			{`\b(abstype|and|andalso|as|case|datatype|do|else|end|exception|fn|fun|handle|if|in|infix|infixr|let|local|nonfix|of|op|open|orelse|raise|rec|then|type|val|with|withtype|while|eqtype|functor|include|sharing|sig|signature|struct|structure|where)\b`, KeywordReserved, nil},
+			{`([a-zA-Z][\w']*)`, Name, nil},
+			{`\b(:|\|,=|=>|->|#|:>)\b`, KeywordReserved, nil},
+			{"([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", Name, nil},
+		},
+		"dotted": {
+			{`([a-zA-Z][\w']*)(\.)`, NameNamespace, nil},
+			// ignoring reserved words
+			{`([a-zA-Z][\w']*)`, Name, Pop(1)},
+			// ignoring reserved words
+			{"([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", Name, Pop(1)},
+			{`\s+`, Error, nil},
+			{`\S+`, Error, nil},
+		},
+		"root": {
+			Default(Push("main")),
+		},
+		"main": {
+			Include("whitespace"),
+			{`\b(val|and)\b(?!\')`, KeywordReserved, Push("vname")},
+			{`\b(fun)\b(?!\')`, KeywordReserved, Push("#pop", "main-fun", "fname")},
+			Include("delimiters"),
+			Include("core"),
+			{`\S+`, Error, nil},
+		},
+		"main-fun": {
+			Include("whitespace"),
+			{`\s`, Text, nil},
+			{`\(\*`, CommentMultiline, Push("comment")},
+			{`\b(fun|and)\b(?!\')`, KeywordReserved, Push("fname")},
+			{`\b(val)\b(?!\')`, KeywordReserved, Push("#pop", "main", "vname")},
+			{`\|`, Punctuation, Push("fname")},
+			{`\b(case|handle)\b(?!\')`, KeywordReserved, Push("#pop", "main")},
+			Include("delimiters"),
+			Include("core"),
+			{`\S+`, Error, nil},
+		},
+		"char": {
+			{`[^"\\]`, LiteralStringChar, nil},
+			{`\\[\\"abtnvfr]`, LiteralStringEscape, nil},
+			{`\\\^[\x40-\x5e]`, LiteralStringEscape, nil},
+			{`\\[0-9]{3}`, LiteralStringEscape, nil},
+			{`\\u[0-9a-fA-F]{4}`, LiteralStringEscape, nil},
+			{`\\\s+\\`, LiteralStringInterpol, nil},
+			{`"`, LiteralStringChar, Pop(1)},
+		},
+		"string": {
+			{`[^"\\]`, LiteralStringDouble, nil},
+			{`\\[\\"abtnvfr]`, LiteralStringEscape, nil},
+			{`\\\^[\x40-\x5e]`, LiteralStringEscape, nil},
+			{`\\[0-9]{3}`, LiteralStringEscape, nil},
+			{`\\u[0-9a-fA-F]{4}`, LiteralStringEscape, nil},
+			{`\\\s+\\`, LiteralStringInterpol, nil},
+			{`"`, LiteralStringDouble, Pop(1)},
+		},
+		"breakout": {
+			{`(?=\b(where|do|handle|if|sig|op|while|case|as|else|signature|andalso|struct|infixr|functor|in|structure|then|local|rec|end|fun|of|orelse|val|include|fn|with|exception|let|and|infix|sharing|datatype|type|abstype|withtype|eqtype|nonfix|raise|open)\b(?!\'))`, Text, Pop(1)},
+		},
+		"sname": {
+			Include("whitespace"),
+			Include("breakout"),
+			{`([a-zA-Z][\w']*)`, NameNamespace, nil},
+			Default(Pop(1)),
+		},
+		"fname": {
+			Include("whitespace"),
+			{`\'[\w\']*`, NameDecorator, nil},
+			{`\(`, Punctuation, Push("tyvarseq")},
+			{`([a-zA-Z][\w']*)`, NameFunction, Pop(1)},
+			{"([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", NameFunction, Pop(1)},
+			Default(Pop(1)),
+		},
+		"vname": {
+			Include("whitespace"),
+			{`\'[\w\']*`, NameDecorator, nil},
+			{`\(`, Punctuation, Push("tyvarseq")},
+			{"([a-zA-Z][\\w']*)(\\s*)(=(?![!%&$#+\\-/:<=>?@\\\\~`^|*]+))", ByGroups(NameVariable, Text, Punctuation), Pop(1)},
+			{"([!%&$#+\\-/:<=>?@\\\\~`^|*]+)(\\s*)(=(?![!%&$#+\\-/:<=>?@\\\\~`^|*]+))", ByGroups(NameVariable, Text, Punctuation), Pop(1)},
+			{`([a-zA-Z][\w']*)`, NameVariable, Pop(1)},
+			{"([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", NameVariable, Pop(1)},
+			Default(Pop(1)),
+		},
+		"tname": {
+			Include("whitespace"),
+			Include("breakout"),
+			{`\'[\w\']*`, NameDecorator, nil},
+			{`\(`, Punctuation, Push("tyvarseq")},
+			{"=(?![!%&$#+\\-/:<=>?@\\\\~`^|*]+)", Punctuation, Push("#pop", "typbind")},
+			{`([a-zA-Z][\w']*)`, KeywordType, nil},
+			{"([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", KeywordType, nil},
+			{`\S+`, Error, Pop(1)},
+		},
+		"typbind": {
+			Include("whitespace"),
+			{`\b(and)\b(?!\')`, KeywordReserved, Push("#pop", "tname")},
+			Include("breakout"),
+			Include("core"),
+			{`\S+`, Error, Pop(1)},
+		},
+		"dname": {
+			Include("whitespace"),
+			Include("breakout"),
+			{`\'[\w\']*`, NameDecorator, nil},
+			{`\(`, Punctuation, Push("tyvarseq")},
+			{`(=)(\s*)(datatype)`, ByGroups(Punctuation, Text, KeywordReserved), Pop(1)},
+			{"=(?![!%&$#+\\-/:<=>?@\\\\~`^|*]+)", Punctuation, Push("#pop", "datbind", "datcon")},
+			{`([a-zA-Z][\w']*)`, KeywordType, nil},
+			{"([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", KeywordType, nil},
+			{`\S+`, Error, Pop(1)},
+		},
+		"datbind": {
+			Include("whitespace"),
+			{`\b(and)\b(?!\')`, KeywordReserved, Push("#pop", "dname")},
+			{`\b(withtype)\b(?!\')`, KeywordReserved, Push("#pop", "tname")},
+			{`\b(of)\b(?!\')`, KeywordReserved, nil},
+			{`(\|)(\s*)([a-zA-Z][\w']*)`, ByGroups(Punctuation, Text, NameClass), nil},
+			{"(\\|)(\\s+)([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", ByGroups(Punctuation, Text, NameClass), nil},
+			Include("breakout"),
+			Include("core"),
+			{`\S+`, Error, nil},
+		},
+		"ename": {
+			Include("whitespace"),
+			{`(exception|and)\b(\s+)([a-zA-Z][\w']*)`, ByGroups(KeywordReserved, Text, NameClass), nil},
+			{"(exception|and)\\b(\\s*)([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", ByGroups(KeywordReserved, Text, NameClass), nil},
+			{`\b(of)\b(?!\')`, KeywordReserved, nil},
+			Include("breakout"),
+			Include("core"),
+			{`\S+`, Error, nil},
+		},
+		"datcon": {
+			Include("whitespace"),
+			{`([a-zA-Z][\w']*)`, NameClass, Pop(1)},
+			{"([!%&$#+\\-/:<=>?@\\\\~`^|*]+)", NameClass, Pop(1)},
+			{`\S+`, Error, Pop(1)},
+		},
+		"tyvarseq": {
+			{`\s`, Text, nil},
+			{`\(\*`, CommentMultiline, Push("comment")},
+			{`\'[\w\']*`, NameDecorator, nil},
+			{`[a-zA-Z][\w']*`, Name, nil},
+			{`,`, Punctuation, nil},
+			{`\)`, Punctuation, Pop(1)},
+			{"[!%&$#+\\-/:<=>?@\\\\~`^|*]+", Name, nil},
+		},
+		"comment": {
+			{`[^(*)]`, CommentMultiline, nil},
+			{`\(\*`, CommentMultiline, Push()},
+			{`\*\)`, CommentMultiline, Pop(1)},
+			{`[(*)]`, CommentMultiline, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/t/tablegen.go

@@ -0,0 +1,42 @@
+package t
+
+import (
+	. "github.com/alecthomas/chroma" // nolint
+	"github.com/alecthomas/chroma/lexers/internal"
+)
+
+// TableGen lexer.
+var Tablegen = internal.Register(MustNewLexer(
+	&Config{
+		Name:      "TableGen",
+		Aliases:   []string{"tablegen"},
+		Filenames: []string{"*.td"},
+		MimeTypes: []string{"text/x-tablegen"},
+	},
+	Rules{
+		"root": {
+			Include("macro"),
+			Include("whitespace"),
+			{`c?"[^"]*?"`, LiteralString, nil},
+			Include("keyword"),
+			{`\$[_a-zA-Z][_\w]*`, NameVariable, nil},
+			{`\d*[_a-zA-Z][_\w]*`, NameVariable, nil},
+			{`\[\{[\w\W]*?\}\]`, LiteralString, nil},
+			{`[+-]?\d+|0x[\da-fA-F]+|0b[01]+`, LiteralNumber, nil},
+			{`[=<>{}\[\]()*.,!:;]`, Punctuation, nil},
+		},
+		"macro": {
+			{`(#include\s+)("[^"]*")`, ByGroups(CommentPreproc, LiteralString), nil},
+			{`^\s*#(ifdef|ifndef)\s+[_\w][_\w\d]*`, CommentPreproc, nil},
+			{`^\s*#define\s+[_\w][_\w\d]*`, CommentPreproc, nil},
+			{`^\s*#endif`, CommentPreproc, nil},
+		},
+		"whitespace": {
+			{`(\n|\s)+`, Text, nil},
+			{`//.*?\n`, Comment, nil},
+		},
+		"keyword": {
+			{Words(``, `\b`, `bit`, `bits`, `class`, `code`, `dag`, `def`, `defm`, `field`, `foreach`, `in`, `int`, `let`, `list`, `multiclass`, `string`), Keyword, nil},
+		},
+	},
+))

vendor/github.com/alecthomas/chroma/lexers/y/yaml.go

@@ -15,12 +15,15 @@ var YAML = internal.Register(MustNewLexer(
 	Rules{
 		"root": {
 			Include("whitespace"),
-			{`#.*`, Comment, nil},
+			{`^---`, Text, nil},
+			{`[\n?]?\s*- `, Text, nil},
+			{`#.*$`, Comment, nil},
 			{`!![^\s]+`, CommentPreproc, nil},
 			{`&[^\s]+`, CommentPreproc, nil},
 			{`\*[^\s]+`, CommentPreproc, nil},
 			{`^%include\s+[^\n\r]+`, CommentPreproc, nil},
 			{`([>|+-]\s+)(\s+)((?:(?:.*?$)(?:[\n\r]*?)?)*)`, ByGroups(StringDoc, StringDoc, StringDoc), nil},
+			Include("key"),
 			Include("value"),
 			{`[?:,\[\]]`, Punctuation, nil},
 			{`.`, Text, nil},
@@ -33,8 +36,15 @@ var YAML = internal.Register(MustNewLexer(
 			{`\b[+\-]?(0x[\da-f]+|0o[0-7]+|(\d+\.?\d*|\.?\d+)(e[\+\-]?\d+)?|\.inf|\.nan)\b`, Number, nil},
 			{`\b[\w]+\b`, Text, nil},
 		},
+		"key": {
+			{`"[^"\n].*": `, Keyword, nil},
+			{`(-)( )([^"\n{]*)(:)( )`, ByGroups(Punctuation, Whitespace, Keyword, Punctuation, Whitespace), nil},
+			{`([^"\n{]*)(:)( )`, ByGroups(Keyword, Punctuation, Whitespace), nil},
+			{`([^"\n{]*)(:)(\n)`, ByGroups(Keyword, Punctuation, Whitespace), nil},
+		},
 		"whitespace": {
 			{`\s+`, Whitespace, nil},
+			{`\n+`, Whitespace, nil},
 		},
 	},
 ))

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

@@ -34,10 +34,14 @@ func (e EmitterFunc) Emit(groups []string, lexer Lexer) Iterator { return e(grou
 func ByGroups(emitters ...Emitter) Emitter {
 	return EmitterFunc(func(groups []string, lexer Lexer) Iterator {
 		iterators := make([]Iterator, 0, len(groups)-1)
-		// NOTE: If this panics, there is a mismatch with groups
+		if len(emitters) != len(groups)-1 {
+			iterators = append(iterators, Error.Emit(groups, lexer))
+			// panic(errors.Errorf("number of groups %q does not match number of emitters %v", groups, emitters))
+		} else {
 			for i, group := range groups[1:] {
 				iterators = append(iterators, emitters[i].Emit([]string{group}, lexer))
 			}
+		}
 		return Concaterator(iterators...)
 	})
 }
@@ -255,7 +259,7 @@ func (l *LexerState) Get(key interface{}) interface{} {
 }
 
 // Iterator returns the next Token from the lexer.
-func (l *LexerState) Iterator() Token {
+func (l *LexerState) Iterator() Token { // nolint: gocognit
 	for l.Pos < len(l.Text) && len(l.Stack) > 0 {
 		// Exhaust the iterator stack, if any.
 		for len(l.iteratorStack) > 0 {

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

@@ -66,7 +66,6 @@ func TypeRemappingLexer(lexer Lexer, mapping TypeMapping) Lexer {
 				km[k] = rt.To
 			}
 		}
-
 	}
 	return RemappingLexer(lexer, func(t Token) []Token {
 		if k, ok := lut[t.Type]; ok {

vendor/github.com/mattn/go-isatty/.travis.yml

@@ -1,13 +1,14 @@
 language: go
+sudo: false
 go:
+  - 1.13.x
   - tip
 
-os:
-  - linux
-  - osx
-
 before_install:
-  - go get github.com/mattn/goveralls
+  - go get -t -v ./...
-  - go get golang.org/x/tools/cmd/cover
+
 script:
-  - $HOME/gopath/bin/goveralls -repotoken 3gHdORO5k5ziZcWMBxnd9LrMZaJs8m9x5
+  - ./go.test.sh
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

vendor/github.com/mattn/go-isatty/README.md

@@ -1,7 +1,7 @@
 # go-isatty
 
 [![Godoc Reference](https://godoc.org/github.com/mattn/go-isatty?status.svg)](http://godoc.org/github.com/mattn/go-isatty)
-[![Build Status](https://travis-ci.org/mattn/go-isatty.svg?branch=master)](https://travis-ci.org/mattn/go-isatty)
+[![Codecov](https://codecov.io/gh/mattn/go-isatty/branch/master/graph/badge.svg)](https://codecov.io/gh/mattn/go-isatty)
 [![Coverage Status](https://coveralls.io/repos/github/mattn/go-isatty/badge.svg?branch=master)](https://coveralls.io/github/mattn/go-isatty?branch=master)
 [![Go Report Card](https://goreportcard.com/badge/mattn/go-isatty)](https://goreportcard.com/report/mattn/go-isatty)
 

vendor/github.com/mattn/go-isatty/go.mod

@@ -1,5 +1,5 @@
 module github.com/mattn/go-isatty
 
-require golang.org/x/sys v0.0.0-20191008105621-543471e840be
+go 1.12
 
-go 1.14
+require golang.org/x/sys v0.0.0-20200116001909-b77594299b42

vendor/github.com/mattn/go-isatty/go.sum

@@ -1,4 +1,2 @@
-golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a h1:aYOabOQFp6Vj6W1F80affTUvO9UxmJRx8K0gsfABByQ=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42 h1:vEOn+mP2zCOVzKckCZy6YsCtDblrpj/w7B9nxGNELpg=
-golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191008105621-543471e840be h1:QAcqgptGM8IQBC9K/RC4o+O9YmqEm0diQn9QmZw/0mU=
-golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

vendor/github.com/mattn/go-isatty/go.test.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+echo "" > coverage.txt
+
+for d in $(go list ./... | grep -v vendor); do
+    go test -race -coverprofile=profile.out -covermode=atomic "$d"
+    if [ -f profile.out ]; then
+        cat profile.out >> coverage.txt
+        rm profile.out
+    fi
+done

vendor/github.com/mattn/go-isatty/isatty_android.go

@@ -1,23 +0,0 @@
-// +build android
-
-package isatty
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-const ioctlReadTermios = syscall.TCGETS
-
-// IsTerminal return true if the file descriptor is terminal.
-func IsTerminal(fd uintptr) bool {
-	var termios syscall.Termios
-	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
-	return err == 0
-}
-
-// IsCygwinTerminal return true if the file descriptor is a cygwin or msys2
-// terminal. This is also always false on this environment.
-func IsCygwinTerminal(fd uintptr) bool {
-	return false
-}

vendor/github.com/mattn/go-isatty/isatty_bsd.go

@@ -3,18 +3,12 @@
 
 package isatty
 
-import (
+import "golang.org/x/sys/unix"
-	"syscall"
-	"unsafe"
-)
-
-const ioctlReadTermios = syscall.TIOCGETA
 
 // IsTerminal return true if the file descriptor is terminal.
 func IsTerminal(fd uintptr) bool {
-	var termios syscall.Termios
+	_, err := unix.IoctlGetTermios(int(fd), unix.TIOCGETA)
-	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
+	return err == nil
-	return err == 0
 }
 
 // IsCygwinTerminal return true if the file descriptor is a cygwin or msys2

vendor/github.com/mattn/go-isatty/isatty_plan9.go

@@ -8,7 +8,7 @@ import (
 
 // IsTerminal returns true if the given file descriptor is a terminal.
 func IsTerminal(fd uintptr) bool {
-	path, err := syscall.Fd2path(fd)
+	path, err := syscall.Fd2path(int(fd))
 	if err != nil {
 		return false
 	}

vendor/github.com/mattn/go-isatty/isatty_tcgets.go

@@ -1,6 +1,5 @@
 // +build linux aix
 // +build !appengine
-// +build !android
 
 package isatty
 

vendor/github.com/mattn/go-isatty/renovate.json

@@ -0,0 +1,8 @@
+{
+  "extends": [
+    "config:base"
+  ],
+  "postUpdateOptions": [
+    "gomodTidy"
+  ]
+}

vendor/github.com/tj/front/Readme.md

@@ -1,16 +0,0 @@
-# Front
-
-Frontmatter unmarshaller, couldn't find one without a weird API.
-
-## Badges
-
-[![GoDoc](https://godoc.org/github.com/tj/front?status.svg)](https://godoc.org/github.com/tj/front)
-![](https://img.shields.io/badge/license-MIT-blue.svg)
-![](https://img.shields.io/badge/status-stable-green.svg)
-[![](http://apex.sh/images/badge.svg)](https://apex.sh/ping/)
-
----
-
-> [tjholowaychuk.com](http://tjholowaychuk.com)  · 
-> GitHub [@tj](https://github.com/tj)  · 
-> Twitter [@tjholowaychuk](https://twitter.com/tjholowaychuk)

vendor/github.com/tj/front/front.go

@@ -1,24 +0,0 @@
-// Package front provides YAML frontmatter unmarshalling.
-package front
-
-import (
-	"bytes"
-
-	"gopkg.in/yaml.v1"
-)
-
-// Delimiter.
-var delim = []byte("---")
-
-// Unmarshal parses YAML frontmatter and returns the content. When no
-// frontmatter delimiters are present the original content is returned.
-func Unmarshal(b []byte, v interface{}) (content []byte, err error) {
-	if !bytes.HasPrefix(b, delim) {
-		return b, nil
-	}
-
-	parts := bytes.SplitN(b, delim, 3)
-	content = parts[2]
-	err = yaml.Unmarshal(parts[1], v)
-	return
-}

vendor/golang.org/x/sys/unix/asm_linux_riscv64.s

@@ -23,10 +23,6 @@ TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
 	MOV	a1+8(FP), A0
 	MOV	a2+16(FP), A1
 	MOV	a3+24(FP), A2
-	MOV	$0, A3
-	MOV	$0, A4
-	MOV	$0, A5
-	MOV	$0, A6
 	MOV	trap+0(FP), A7	// syscall entry
 	ECALL
 	MOV	A0, r1+32(FP)	// r1
@@ -44,9 +40,6 @@ TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
 	MOV	a1+8(FP), A0
 	MOV	a2+16(FP), A1
 	MOV	a3+24(FP), A2
-	MOV	ZERO, A3
-	MOV	ZERO, A4
-	MOV	ZERO, A5
 	MOV	trap+0(FP), A7	// syscall entry
 	ECALL
 	MOV	A0, r1+32(FP)

vendor/golang.org/x/sys/unix/bluetooth_linux.go

@@ -23,6 +23,7 @@ const (
 	HCI_CHANNEL_USER    = 1
 	HCI_CHANNEL_MONITOR = 2
 	HCI_CHANNEL_CONTROL = 3
+	HCI_CHANNEL_LOGGING = 4
 )
 
 // Socketoption Level

vendor/golang.org/x/sys/unix/fcntl.go

@@ -9,12 +9,11 @@ package unix
 import "unsafe"
 
 // fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux
-// systems by flock_linux_32bit.go to be SYS_FCNTL64.
+// systems by fcntl_linux_32bit.go to be SYS_FCNTL64.
 var fcntl64Syscall uintptr = SYS_FCNTL
 
-// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func fcntl(fd int, cmd, arg int) (int, error) {
-func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+	valptr, _, errno := Syscall(fcntl64Syscall, uintptr(fd), uintptr(cmd), uintptr(arg))
-	valptr, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg))
 	var err error
 	if errno != 0 {
 		err = errno
@@ -22,6 +21,11 @@ func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
 	return int(valptr), err
 }
 
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+	return fcntl(int(fd), cmd, arg)
+}
+
 // FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
 func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
 	_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))

vendor/golang.org/x/sys/unix/fdset.go

@@ -0,0 +1,29 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix
+
+// Set adds fd to the set fds.
+func (fds *FdSet) Set(fd int) {
+	fds.Bits[fd/NFDBITS] |= (1 << (uintptr(fd) % NFDBITS))
+}
+
+// Clear removes fd from the set fds.
+func (fds *FdSet) Clear(fd int) {
+	fds.Bits[fd/NFDBITS] &^= (1 << (uintptr(fd) % NFDBITS))
+}
+
+// IsSet returns whether fd is in the set fds.
+func (fds *FdSet) IsSet(fd int) bool {
+	return fds.Bits[fd/NFDBITS]&(1<<(uintptr(fd)%NFDBITS)) != 0
+}
+
+// Zero clears the set fds.
+func (fds *FdSet) Zero() {
+	for i := range fds.Bits {
+		fds.Bits[i] = 0
+	}
+}

vendor/golang.org/x/sys/unix/mkall.sh

@@ -50,7 +50,7 @@ if [[ "$GOOS" = "linux" ]]; then
 	# Use the Docker-based build system
 	# Files generated through docker (use $cmd so you can Ctl-C the build or run)
 	$cmd docker build --tag generate:$GOOS $GOOS
-	$cmd docker run --interactive --tty --volume $(dirname "$(readlink -f "$0")"):/build generate:$GOOS
+	$cmd docker run --interactive --tty --volume $(cd -- "$(dirname -- "$0")" && /bin/pwd):/build generate:$GOOS
 	exit
 fi
 

vendor/golang.org/x/sys/unix/mkerrors.sh

@@ -44,6 +44,7 @@ includes_AIX='
 #include <sys/stropts.h>
 #include <sys/mman.h>
 #include <sys/poll.h>
+#include <sys/select.h>
 #include <sys/termio.h>
 #include <termios.h>
 #include <fcntl.h>
@@ -185,16 +186,19 @@ struct ltchars {
 #include <sys/select.h>
 #include <sys/signalfd.h>
 #include <sys/socket.h>
+#include <sys/uio.h>
 #include <sys/xattr.h>
 #include <linux/bpf.h>
 #include <linux/can.h>
 #include <linux/capability.h>
 #include <linux/cryptouser.h>
+#include <linux/devlink.h>
 #include <linux/errqueue.h>
 #include <linux/falloc.h>
 #include <linux/fanotify.h>
 #include <linux/filter.h>
 #include <linux/fs.h>
+#include <linux/fscrypt.h>
 #include <linux/genetlink.h>
 #include <linux/hdreg.h>
 #include <linux/icmpv6.h>
@@ -494,7 +498,9 @@ ccflags="$@"
 		$2 ~ /^CAN_/ ||
 		$2 ~ /^CAP_/ ||
 		$2 ~ /^ALG_/ ||
-		$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE|IOC_(GET|SET)_ENCRYPTION)/ ||
+		$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE)/ ||
+		$2 ~ /^FS_IOC_.*ENCRYPTION/ ||
+		$2 ~ /^FSCRYPT_/ ||
 		$2 ~ /^GRND_/ ||
 		$2 ~ /^RND/ ||
 		$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
@@ -521,9 +527,11 @@ ccflags="$@"
 		$2 ~ /^WDIOC_/ ||
 		$2 ~ /^NFN/ ||
 		$2 ~ /^XDP_/ ||
+		$2 ~ /^RWF_/ ||
 		$2 ~ /^(HDIO|WIN|SMART)_/ ||
 		$2 ~ /^CRYPTO_/ ||
 		$2 ~ /^TIPC_/ ||
+		$2 ~ /^DEVLINK_/ ||
 		$2 !~ "WMESGLEN" &&
 		$2 ~ /^W[A-Z0-9]+$/ ||
 		$2 ~/^PPPIOC/ ||

vendor/golang.org/x/sys/unix/sockcmsg_dragonfly.go

@@ -0,0 +1,16 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package unix
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+	salign := SizeofPtr
+	if SizeofPtr == 8 && !supportsABI(_dragonflyABIChangeVersion) {
+		// 64-bit Dragonfly before the September 2019 ABI changes still requires
+		// 32-bit aligned access to network subsystem.
+		salign = 4
+	}
+	return (salen + salign - 1) & ^(salign - 1)
+}

vendor/golang.org/x/sys/unix/sockcmsg_linux.go

@@ -17,7 +17,7 @@ func UnixCredentials(ucred *Ucred) []byte {
 	h.Level = SOL_SOCKET
 	h.Type = SCM_CREDENTIALS
 	h.SetLen(CmsgLen(SizeofUcred))
-	*((*Ucred)(cmsgData(h))) = *ucred
+	*(*Ucred)(h.data(0)) = *ucred
 	return b
 }
 

vendor/golang.org/x/sys/unix/sockcmsg_unix.go

@@ -9,35 +9,9 @@
 package unix
 
 import (
-	"runtime"
 	"unsafe"
 )
 
-// Round the length of a raw sockaddr up to align it properly.
-func cmsgAlignOf(salen int) int {
-	salign := SizeofPtr
-
-	switch runtime.GOOS {
-	case "aix":
-		// There is no alignment on AIX.
-		salign = 1
-	case "darwin", "dragonfly", "solaris", "illumos":
-		// NOTE: It seems like 64-bit Darwin, DragonFly BSD,
-		// illumos, and Solaris kernels still require 32-bit
-		// aligned access to network subsystem.
-		if SizeofPtr == 8 {
-			salign = 4
-		}
-	case "netbsd", "openbsd":
-		// NetBSD and OpenBSD armv7 require 64-bit alignment.
-		if runtime.GOARCH == "arm" {
-			salign = 8
-		}
-	}
-
-	return (salen + salign - 1) & ^(salign - 1)
-}
-
 // CmsgLen returns the value to store in the Len field of the Cmsghdr
 // structure, taking into account any necessary alignment.
 func CmsgLen(datalen int) int {
@@ -50,8 +24,8 @@ func CmsgSpace(datalen int) int {
 	return cmsgAlignOf(SizeofCmsghdr) + cmsgAlignOf(datalen)
 }
 
-func cmsgData(h *Cmsghdr) unsafe.Pointer {
+func (h *Cmsghdr) data(offset uintptr) unsafe.Pointer {
-	return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)))
+	return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)) + offset)
 }
 
 // SocketControlMessage represents a socket control message.
@@ -94,10 +68,8 @@ func UnixRights(fds ...int) []byte {
 	h.Level = SOL_SOCKET
 	h.Type = SCM_RIGHTS
 	h.SetLen(CmsgLen(datalen))
-	data := cmsgData(h)
+	for i, fd := range fds {
-	for _, fd := range fds {
+		*(*int32)(h.data(4 * uintptr(i))) = int32(fd)
-		*(*int32)(data) = int32(fd)
-		data = unsafe.Pointer(uintptr(data) + 4)
 	}
 	return b
 }

vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go

@@ -0,0 +1,38 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build aix darwin freebsd linux netbsd openbsd solaris
+
+package unix
+
+import (
+	"runtime"
+)
+
+// Round the length of a raw sockaddr up to align it properly.
+func cmsgAlignOf(salen int) int {
+	salign := SizeofPtr
+
+	// dragonfly needs to check ABI version at runtime, see cmsgAlignOf in
+	// sockcmsg_dragonfly.go
+	switch runtime.GOOS {
+	case "aix":
+		// There is no alignment on AIX.
+		salign = 1
+	case "darwin", "illumos", "solaris":
+		// NOTE: It seems like 64-bit Darwin, Illumos and Solaris
+		// kernels still require 32-bit aligned access to network
+		// subsystem.
+		if SizeofPtr == 8 {
+			salign = 4
+		}
+	case "netbsd", "openbsd":
+		// NetBSD and OpenBSD armv7 require 64-bit alignment.
+		if runtime.GOARCH == "arm" {
+			salign = 8
+		}
+	}
+
+	return (salen + salign - 1) & ^(salign - 1)
+}

vendor/golang.org/x/sys/unix/syscall_bsd.go

@@ -237,7 +237,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 				break
 			}
 		}
-		bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+		bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
 		sa.Name = string(bytes)
 		return sa, nil
 
@@ -510,6 +510,23 @@ func SysctlRaw(name string, args ...int) ([]byte, error) {
 	return buf[:n], nil
 }
 
+func SysctlClockinfo(name string) (*Clockinfo, error) {
+	mib, err := sysctlmib(name)
+	if err != nil {
+		return nil, err
+	}
+
+	n := uintptr(SizeofClockinfo)
+	var ci Clockinfo
+	if err := sysctl(mib, (*byte)(unsafe.Pointer(&ci)), &n, nil, 0); err != nil {
+		return nil, err
+	}
+	if n != SizeofClockinfo {
+		return nil, EIO
+	}
+	return &ci, nil
+}
+
 //sys	utimes(path string, timeval *[2]Timeval) (err error)
 
 func Utimes(path string, tv []Timeval) error {
@@ -577,8 +594,6 @@ func Futimes(fd int, tv []Timeval) error {
 	return futimes(fd, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
 }
 
-//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
-
 //sys   poll(fds *PollFd, nfds int, timeout int) (n int, err error)
 
 func Poll(fds []PollFd, timeout int) (n int, err error) {

vendor/golang.org/x/sys/unix/syscall_darwin.1_13.go

@@ -27,8 +27,6 @@ func libc_fdopendir_trampoline()
 
 func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
 	// Simulate Getdirentries using fdopendir/readdir_r/closedir.
-	const ptrSize = unsafe.Sizeof(uintptr(0))
-
 	// We store the number of entries to skip in the seek
 	// offset of fd. See issue #31368.
 	// It's not the full required semantics, but should handle the case

vendor/golang.org/x/sys/unix/syscall_darwin.go

@@ -155,23 +155,6 @@ func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (
 
 //sys getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error)
 
-func SysctlClockinfo(name string) (*Clockinfo, error) {
-	mib, err := sysctlmib(name)
-	if err != nil {
-		return nil, err
-	}
-
-	n := uintptr(SizeofClockinfo)
-	var ci Clockinfo
-	if err := sysctl(mib, (*byte)(unsafe.Pointer(&ci)), &n, nil, 0); err != nil {
-		return nil, err
-	}
-	if n != SizeofClockinfo {
-		return nil, EIO
-	}
-	return &ci, nil
-}
-
 //sysnb pipe() (r int, w int, err error)
 
 func Pipe(p []int) (err error) {
@@ -333,12 +316,16 @@ func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error {
  * Wrapped
  */
 
+//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
+
 //sys	kill(pid int, signum int, posix int) (err error)
 
 func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) }
 
 //sys	ioctl(fd int, req uint, arg uintptr) (err error)
 
+//sys   sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS_SYSCTL
+
 func Uname(uname *Utsname) error {
 	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
 	n := unsafe.Sizeof(uname.Sysname)

vendor/golang.org/x/sys/unix/syscall_darwin_386.go

@@ -10,7 +10,6 @@ import (
 	"syscall"
 )
 
-//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
 //sys   ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
 
 func setTimespec(sec, nsec int64) Timespec {

vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go

@@ -10,7 +10,6 @@ import (
 	"syscall"
 )
 
-//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
 //sys   ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
 
 func setTimespec(sec, nsec int64) Timespec {

vendor/golang.org/x/sys/unix/syscall_darwin_arm.1_11.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin,386,!go1.12
+// +build darwin,arm,!go1.12
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_darwin_arm.go

@@ -12,10 +12,6 @@ func ptrace(request int, pid int, addr uintptr, data uintptr) error {
 	return ENOTSUP
 }
 
-func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) error {
-	return ENOTSUP
-}
-
 func setTimespec(sec, nsec int64) Timespec {
 	return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
 }

vendor/golang.org/x/sys/unix/syscall_darwin_arm64.go

@@ -14,10 +14,6 @@ func ptrace(request int, pid int, addr uintptr, data uintptr) error {
 	return ENOTSUP
 }
 
-func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) error {
-	return ENOTSUP
-}
-
 func setTimespec(sec, nsec int64) Timespec {
 	return Timespec{Sec: sec, Nsec: nsec}
 }

vendor/golang.org/x/sys/unix/syscall_dragonfly.go

@@ -12,9 +12,25 @@
 
 package unix
 
-import "unsafe"
+import (
+	"sync"
+	"unsafe"
+)
 
-//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
+// See version list in https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/param.h
+var (
+	osreldateOnce sync.Once
+	osreldate     uint32
+)
+
+// First __DragonFly_version after September 2019 ABI changes
+// http://lists.dragonflybsd.org/pipermail/users/2019-September/358280.html
+const _dragonflyABIChangeVersion = 500705
+
+func supportsABI(ver uint32) bool {
+	osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
+	return osreldate >= ver
+}
 
 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
 type SockaddrDatalink struct {
@@ -152,6 +168,8 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
 
 //sys	ioctl(fd int, req uint, arg uintptr) (err error)
 
+//sys   sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
+
 func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error {
 	err := sysctl(mib, old, oldlen, nil, 0)
 	if err != nil {

vendor/golang.org/x/sys/unix/syscall_freebsd.go

@@ -36,8 +36,6 @@ var (
 // INO64_FIRST from /usr/src/lib/libc/sys/compat-ino64.h
 const _ino64First = 1200031
 
-//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
-
 func supportsABI(ver uint32) bool {
 	osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
 	return osreldate >= ver
@@ -203,6 +201,8 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
 
 //sys   ioctl(fd int, req uint, arg uintptr) (err error)
 
+//sys   sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
+
 func Uname(uname *Utsname) error {
 	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
 	n := unsafe.Sizeof(uname.Sysname)
@@ -462,8 +462,12 @@ func convertFromDirents11(buf []byte, old []byte) int {
 	dstPos := 0
 	srcPos := 0
 	for dstPos+fixedSize < len(buf) && srcPos+oldFixedSize < len(old) {
-		dstDirent := (*Dirent)(unsafe.Pointer(&buf[dstPos]))
+		var dstDirent Dirent
-		srcDirent := (*dirent_freebsd11)(unsafe.Pointer(&old[srcPos]))
+		var srcDirent dirent_freebsd11
+
+		// If multiple direntries are written, sometimes when we reach the final one,
+		// we may have cap of old less than size of dirent_freebsd11.
+		copy((*[unsafe.Sizeof(srcDirent)]byte)(unsafe.Pointer(&srcDirent))[:], old[srcPos:])
 
 		reclen := roundup(fixedSize+int(srcDirent.Namlen)+1, 8)
 		if dstPos+reclen > len(buf) {
@@ -479,6 +483,7 @@ func convertFromDirents11(buf []byte, old []byte) int {
 		dstDirent.Pad1 = 0
 
 		copy(dstDirent.Name[:], srcDirent.Name[:srcDirent.Namlen])
+		copy(buf[dstPos:], (*[unsafe.Sizeof(dstDirent)]byte)(unsafe.Pointer(&dstDirent))[:])
 		padding := buf[dstPos+fixedSize+int(dstDirent.Namlen) : dstPos+reclen]
 		for i := range padding {
 			padding[i] = 0

vendor/golang.org/x/sys/unix/syscall_linux.go

@@ -884,7 +884,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 		for n < len(pp.Path) && pp.Path[n] != 0 {
 			n++
 		}
-		bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+		bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
 		sa.Name = string(bytes)
 		return sa, nil
 
@@ -1575,7 +1575,6 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sys	Fchdir(fd int) (err error)
 //sys	Fchmod(fd int, mode uint32) (err error)
 //sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
-//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
 //sys	Fdatasync(fd int) (err error)
 //sys	Fgetxattr(fd int, attr string, dest []byte) (sz int, err error)
 //sys	FinitModule(fd int, params string, flags int) (err error)
@@ -1631,6 +1630,17 @@ func Getpgrp() (pid int) {
 //sysnb	Settimeofday(tv *Timeval) (err error)
 //sys	Setns(fd int, nstype int) (err error)
 
+// PrctlRetInt performs a prctl operation specified by option and further
+// optional arguments arg2 through arg5 depending on option. It returns a
+// non-negative integer that is returned by the prctl syscall.
+func PrctlRetInt(option int, arg2 uintptr, arg3 uintptr, arg4 uintptr, arg5 uintptr) (int, error) {
+	ret, _, err := Syscall6(SYS_PRCTL, uintptr(option), uintptr(arg2), uintptr(arg3), uintptr(arg4), uintptr(arg5), 0)
+	if err != 0 {
+		return 0, err
+	}
+	return int(ret), nil
+}
+
 // issue 1435.
 // On linux Setuid and Setgid only affects the current thread, not the process.
 // This does not match what most callers expect so we must return an error
@@ -1666,6 +1676,123 @@ func Signalfd(fd int, sigmask *Sigset_t, flags int) (newfd int, err error) {
 //sys	exitThread(code int) (err error) = SYS_EXIT
 //sys	readlen(fd int, p *byte, np int) (n int, err error) = SYS_READ
 //sys	writelen(fd int, p *byte, np int) (n int, err error) = SYS_WRITE
+//sys	readv(fd int, iovs []Iovec) (n int, err error) = SYS_READV
+//sys	writev(fd int, iovs []Iovec) (n int, err error) = SYS_WRITEV
+//sys	preadv(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr) (n int, err error) = SYS_PREADV
+//sys	pwritev(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr) (n int, err error) = SYS_PWRITEV
+//sys	preadv2(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr, flags int) (n int, err error) = SYS_PREADV2
+//sys	pwritev2(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr, flags int) (n int, err error) = SYS_PWRITEV2
+
+func bytes2iovec(bs [][]byte) []Iovec {
+	iovecs := make([]Iovec, len(bs))
+	for i, b := range bs {
+		iovecs[i].SetLen(len(b))
+		if len(b) > 0 {
+			iovecs[i].Base = &b[0]
+		} else {
+			iovecs[i].Base = (*byte)(unsafe.Pointer(&_zero))
+		}
+	}
+	return iovecs
+}
+
+// offs2lohi splits offs into its lower and upper unsigned long. On 64-bit
+// systems, hi will always be 0. On 32-bit systems, offs will be split in half.
+// preadv/pwritev chose this calling convention so they don't need to add a
+// padding-register for alignment on ARM.
+func offs2lohi(offs int64) (lo, hi uintptr) {
+	return uintptr(offs), uintptr(uint64(offs) >> SizeofLong)
+}
+
+func Readv(fd int, iovs [][]byte) (n int, err error) {
+	iovecs := bytes2iovec(iovs)
+	n, err = readv(fd, iovecs)
+	readvRacedetect(iovecs, n, err)
+	return n, err
+}
+
+func Preadv(fd int, iovs [][]byte, offset int64) (n int, err error) {
+	iovecs := bytes2iovec(iovs)
+	lo, hi := offs2lohi(offset)
+	n, err = preadv(fd, iovecs, lo, hi)
+	readvRacedetect(iovecs, n, err)
+	return n, err
+}
+
+func Preadv2(fd int, iovs [][]byte, offset int64, flags int) (n int, err error) {
+	iovecs := bytes2iovec(iovs)
+	lo, hi := offs2lohi(offset)
+	n, err = preadv2(fd, iovecs, lo, hi, flags)
+	readvRacedetect(iovecs, n, err)
+	return n, err
+}
+
+func readvRacedetect(iovecs []Iovec, n int, err error) {
+	if !raceenabled {
+		return
+	}
+	for i := 0; n > 0 && i < len(iovecs); i++ {
+		m := int(iovecs[i].Len)
+		if m > n {
+			m = n
+		}
+		n -= m
+		if m > 0 {
+			raceWriteRange(unsafe.Pointer(iovecs[i].Base), m)
+		}
+	}
+	if err == nil {
+		raceAcquire(unsafe.Pointer(&ioSync))
+	}
+}
+
+func Writev(fd int, iovs [][]byte) (n int, err error) {
+	iovecs := bytes2iovec(iovs)
+	if raceenabled {
+		raceReleaseMerge(unsafe.Pointer(&ioSync))
+	}
+	n, err = writev(fd, iovecs)
+	writevRacedetect(iovecs, n)
+	return n, err
+}
+
+func Pwritev(fd int, iovs [][]byte, offset int64) (n int, err error) {
+	iovecs := bytes2iovec(iovs)
+	if raceenabled {
+		raceReleaseMerge(unsafe.Pointer(&ioSync))
+	}
+	lo, hi := offs2lohi(offset)
+	n, err = pwritev(fd, iovecs, lo, hi)
+	writevRacedetect(iovecs, n)
+	return n, err
+}
+
+func Pwritev2(fd int, iovs [][]byte, offset int64, flags int) (n int, err error) {
+	iovecs := bytes2iovec(iovs)
+	if raceenabled {
+		raceReleaseMerge(unsafe.Pointer(&ioSync))
+	}
+	lo, hi := offs2lohi(offset)
+	n, err = pwritev2(fd, iovecs, lo, hi, flags)
+	writevRacedetect(iovecs, n)
+	return n, err
+}
+
+func writevRacedetect(iovecs []Iovec, n int) {
+	if !raceenabled {
+		return
+	}
+	for i := 0; n > 0 && i < len(iovecs); i++ {
+		m := int(iovecs[i].Len)
+		if m > n {
+			m = n
+		}
+		n -= m
+		if m > 0 {
+			raceReadRange(unsafe.Pointer(iovecs[i].Base), m)
+		}
+	}
+}
 
 // mmap varies by architecture; see syscall_linux_*.go.
 //sys	munmap(addr uintptr, length uintptr) (err error)