chore(deps): bump chroma to v2 #735

Bump `alecthomas/chroma` to `v2`:
https://github.com/cheat/cheat/issues/735

vendor/github.com/alecthomas/chroma/v2/formatters/api.go

@@ -0,0 +1,57 @@
+package formatters
+
+import (
+	"io"
+	"sort"
+
+	"github.com/alecthomas/chroma/v2"
+	"github.com/alecthomas/chroma/v2/formatters/html"
+	"github.com/alecthomas/chroma/v2/formatters/svg"
+)
+
+var (
+	// NoOp formatter.
+	NoOp = Register("noop", chroma.FormatterFunc(func(w io.Writer, s *chroma.Style, iterator chroma.Iterator) error {
+		for t := iterator(); t != chroma.EOF; t = iterator() {
+			if _, err := io.WriteString(w, t.Value); err != nil {
+				return err
+			}
+		}
+		return nil
+	}))
+	// Default HTML formatter outputs self-contained HTML.
+	htmlFull = Register("html", html.New(html.Standalone(true), html.WithClasses(true))) // nolint
+	SVG      = Register("svg", svg.New(svg.EmbedFont("Liberation Mono", svg.FontLiberationMono, svg.WOFF)))
+)
+
+// Fallback formatter.
+var Fallback = NoOp
+
+// Registry of Formatters.
+var Registry = map[string]chroma.Formatter{}
+
+// Names of registered formatters.
+func Names() []string {
+	out := []string{}
+	for name := range Registry {
+		out = append(out, name)
+	}
+	sort.Strings(out)
+	return out
+}
+
+// Get formatter by name.
+//
+// If the given formatter is not found, the Fallback formatter will be returned.
+func Get(name string) chroma.Formatter {
+	if f, ok := Registry[name]; ok {
+		return f
+	}
+	return Fallback
+}
+
+// Register a named formatter.
+func Register(name string, formatter chroma.Formatter) chroma.Formatter {
+	Registry[name] = formatter
+	return formatter
+}

vendor/github.com/alecthomas/chroma/v2/formatters/html/html.go

@@ -0,0 +1,564 @@
+package html
+
+import (
+	"fmt"
+	"html"
+	"io"
+	"sort"
+	"strings"
+
+	"github.com/alecthomas/chroma/v2"
+)
+
+// Option sets an option of the HTML formatter.
+type Option func(f *Formatter)
+
+// Standalone configures the HTML formatter for generating a standalone HTML document.
+func Standalone(b bool) Option { return func(f *Formatter) { f.standalone = b } }
+
+// ClassPrefix sets the CSS class prefix.
+func ClassPrefix(prefix string) Option { return func(f *Formatter) { f.prefix = prefix } }
+
+// WithClasses emits HTML using CSS classes, rather than inline styles.
+func WithClasses(b bool) Option { return func(f *Formatter) { f.Classes = b } }
+
+// WithAllClasses disables an optimisation that omits redundant CSS classes.
+func WithAllClasses(b bool) Option { return func(f *Formatter) { f.allClasses = b } }
+
+// WithCustomCSS sets user's custom CSS styles.
+func WithCustomCSS(css map[chroma.TokenType]string) Option {
+	return func(f *Formatter) {
+		f.customCSS = css
+	}
+}
+
+// TabWidth sets the number of characters for a tab. Defaults to 8.
+func TabWidth(width int) Option { return func(f *Formatter) { f.tabWidth = width } }
+
+// PreventSurroundingPre prevents the surrounding pre tags around the generated code.
+func PreventSurroundingPre(b bool) Option {
+	return func(f *Formatter) {
+		f.preventSurroundingPre = b
+
+		if b {
+			f.preWrapper = nopPreWrapper
+		} else {
+			f.preWrapper = defaultPreWrapper
+		}
+	}
+}
+
+// InlineCode creates inline code wrapped in a code tag.
+func InlineCode(b bool) Option {
+	return func(f *Formatter) {
+		f.inlineCode = b
+		f.preWrapper = preWrapper{
+			start: func(code bool, styleAttr string) string {
+				if code {
+					return fmt.Sprintf(`<code%s>`, styleAttr)
+				}
+
+				return ``
+			},
+			end: func(code bool) string {
+				if code {
+					return `</code>`
+				}
+
+				return ``
+			},
+		}
+	}
+}
+
+// WithPreWrapper allows control of the surrounding pre tags.
+func WithPreWrapper(wrapper PreWrapper) Option {
+	return func(f *Formatter) {
+		f.preWrapper = wrapper
+	}
+}
+
+// WrapLongLines wraps long lines.
+func WrapLongLines(b bool) Option {
+	return func(f *Formatter) {
+		f.wrapLongLines = b
+	}
+}
+
+// WithLineNumbers formats output with line numbers.
+func WithLineNumbers(b bool) Option {
+	return func(f *Formatter) {
+		f.lineNumbers = b
+	}
+}
+
+// LineNumbersInTable will, when combined with WithLineNumbers, separate the line numbers
+// and code in table td's, which make them copy-and-paste friendly.
+func LineNumbersInTable(b bool) Option {
+	return func(f *Formatter) {
+		f.lineNumbersInTable = b
+	}
+}
+
+// WithLinkableLineNumbers decorates the line numbers HTML elements with an "id"
+// attribute so they can be linked.
+func WithLinkableLineNumbers(b bool, prefix string) Option {
+	return func(f *Formatter) {
+		f.linkableLineNumbers = b
+		f.lineNumbersIDPrefix = prefix
+	}
+}
+
+// HighlightLines higlights the given line ranges with the Highlight style.
+//
+// A range is the beginning and ending of a range as 1-based line numbers, inclusive.
+func HighlightLines(ranges [][2]int) Option {
+	return func(f *Formatter) {
+		f.highlightRanges = ranges
+		sort.Sort(f.highlightRanges)
+	}
+}
+
+// BaseLineNumber sets the initial number to start line numbering at. Defaults to 1.
+func BaseLineNumber(n int) Option {
+	return func(f *Formatter) {
+		f.baseLineNumber = n
+	}
+}
+
+// New HTML formatter.
+func New(options ...Option) *Formatter {
+	f := &Formatter{
+		baseLineNumber: 1,
+		preWrapper:     defaultPreWrapper,
+	}
+	for _, option := range options {
+		option(f)
+	}
+	return f
+}
+
+// PreWrapper defines the operations supported in WithPreWrapper.
+type PreWrapper interface {
+	// Start is called to write a start <pre> element.
+	// The code flag tells whether this block surrounds
+	// highlighted code. This will be false when surrounding
+	// line numbers.
+	Start(code bool, styleAttr string) string
+
+	// End is called to write the end </pre> element.
+	End(code bool) string
+}
+
+type preWrapper struct {
+	start func(code bool, styleAttr string) string
+	end   func(code bool) string
+}
+
+func (p preWrapper) Start(code bool, styleAttr string) string {
+	return p.start(code, styleAttr)
+}
+
+func (p preWrapper) End(code bool) string {
+	return p.end(code)
+}
+
+var (
+	nopPreWrapper = preWrapper{
+		start: func(code bool, styleAttr string) string { return "" },
+		end:   func(code bool) string { return "" },
+	}
+	defaultPreWrapper = preWrapper{
+		start: func(code bool, styleAttr string) string {
+			if code {
+				return fmt.Sprintf(`<pre%s><code>`, styleAttr)
+			}
+
+			return fmt.Sprintf(`<pre%s>`, styleAttr)
+		},
+		end: func(code bool) string {
+			if code {
+				return `</code></pre>`
+			}
+
+			return `</pre>`
+		},
+	}
+)
+
+// Formatter that generates HTML.
+type Formatter struct {
+	standalone            bool
+	prefix                string
+	Classes               bool // Exported field to detect when classes are being used
+	allClasses            bool
+	customCSS             map[chroma.TokenType]string
+	preWrapper            PreWrapper
+	inlineCode            bool
+	preventSurroundingPre bool
+	tabWidth              int
+	wrapLongLines         bool
+	lineNumbers           bool
+	lineNumbersInTable    bool
+	linkableLineNumbers   bool
+	lineNumbersIDPrefix   string
+	highlightRanges       highlightRanges
+	baseLineNumber        int
+}
+
+type highlightRanges [][2]int
+
+func (h highlightRanges) Len() int           { return len(h) }
+func (h highlightRanges) Swap(i, j int)      { h[i], h[j] = h[j], h[i] }
+func (h highlightRanges) Less(i, j int) bool { return h[i][0] < h[j][0] }
+
+func (f *Formatter) Format(w io.Writer, style *chroma.Style, iterator chroma.Iterator) (err error) {
+	return f.writeHTML(w, style, iterator.Tokens())
+}
+
+// We deliberately don't use html/template here because it is two orders of magnitude slower (benchmarked).
+//
+// OTOH we need to be super careful about correct escaping...
+func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []chroma.Token) (err error) { // nolint: gocyclo
+	css := f.styleToCSS(style)
+	if !f.Classes {
+		for t, style := range css {
+			css[t] = compressStyle(style)
+		}
+	}
+	if f.standalone {
+		fmt.Fprint(w, "<html>\n")
+		if f.Classes {
+			fmt.Fprint(w, "<style type=\"text/css\">\n")
+			err = f.WriteCSS(w, style)
+			if err != nil {
+				return err
+			}
+			fmt.Fprintf(w, "body { %s; }\n", css[chroma.Background])
+			fmt.Fprint(w, "</style>")
+		}
+		fmt.Fprintf(w, "<body%s>\n", f.styleAttr(css, chroma.Background))
+	}
+
+	wrapInTable := f.lineNumbers && f.lineNumbersInTable
+
+	lines := chroma.SplitTokensIntoLines(tokens)
+	lineDigits := len(fmt.Sprintf("%d", f.baseLineNumber+len(lines)-1))
+	highlightIndex := 0
+
+	if wrapInTable {
+		// List line numbers in its own <td>
+		fmt.Fprintf(w, "<div%s>\n", f.styleAttr(css, chroma.PreWrapper))
+		fmt.Fprintf(w, "<table%s><tr>", f.styleAttr(css, chroma.LineTable))
+		fmt.Fprintf(w, "<td%s>\n", f.styleAttr(css, chroma.LineTableTD))
+		fmt.Fprintf(w, f.preWrapper.Start(false, f.styleAttr(css, chroma.PreWrapper)))
+		for index := range lines {
+			line := f.baseLineNumber + index
+			highlight, next := f.shouldHighlight(highlightIndex, line)
+			if next {
+				highlightIndex++
+			}
+			if highlight {
+				fmt.Fprintf(w, "<span%s>", f.styleAttr(css, chroma.LineHighlight))
+			}
+
+			fmt.Fprintf(w, "<span%s%s>%s\n</span>", f.styleAttr(css, chroma.LineNumbersTable), f.lineIDAttribute(line), f.lineTitleWithLinkIfNeeded(css, lineDigits, line))
+
+			if highlight {
+				fmt.Fprintf(w, "</span>")
+			}
+		}
+		fmt.Fprint(w, f.preWrapper.End(false))
+		fmt.Fprint(w, "</td>\n")
+		fmt.Fprintf(w, "<td%s>\n", f.styleAttr(css, chroma.LineTableTD, "width:100%"))
+	}
+
+	fmt.Fprintf(w, f.preWrapper.Start(true, f.styleAttr(css, chroma.PreWrapper)))
+
+	highlightIndex = 0
+	for index, tokens := range lines {
+		// 1-based line number.
+		line := f.baseLineNumber + index
+		highlight, next := f.shouldHighlight(highlightIndex, line)
+		if next {
+			highlightIndex++
+		}
+
+		if !(f.preventSurroundingPre || f.inlineCode) {
+			// Start of Line
+			fmt.Fprint(w, `<span`)
+
+			if highlight {
+				// Line + LineHighlight
+				if f.Classes {
+					fmt.Fprintf(w, ` class="%s %s"`, f.class(chroma.Line), f.class(chroma.LineHighlight))
+				} else {
+					fmt.Fprintf(w, ` style="%s %s"`, css[chroma.Line], css[chroma.LineHighlight])
+				}
+				fmt.Fprint(w, `>`)
+			} else {
+				fmt.Fprintf(w, "%s>", f.styleAttr(css, chroma.Line))
+			}
+
+			// Line number
+			if f.lineNumbers && !wrapInTable {
+				fmt.Fprintf(w, "<span%s%s>%s</span>", f.styleAttr(css, chroma.LineNumbers), f.lineIDAttribute(line), f.lineTitleWithLinkIfNeeded(css, lineDigits, line))
+			}
+
+			fmt.Fprintf(w, `<span%s>`, f.styleAttr(css, chroma.CodeLine))
+		}
+
+		for _, token := range tokens {
+			html := html.EscapeString(token.String())
+			attr := f.styleAttr(css, token.Type)
+			if attr != "" {
+				html = fmt.Sprintf("<span%s>%s</span>", attr, html)
+			}
+			fmt.Fprint(w, html)
+		}
+
+		if !(f.preventSurroundingPre || f.inlineCode) {
+			fmt.Fprint(w, `</span>`) // End of CodeLine
+
+			fmt.Fprint(w, `</span>`) // End of Line
+		}
+	}
+	fmt.Fprintf(w, f.preWrapper.End(true))
+
+	if wrapInTable {
+		fmt.Fprint(w, "</td></tr></table>\n")
+		fmt.Fprint(w, "</div>\n")
+	}
+
+	if f.standalone {
+		fmt.Fprint(w, "\n</body>\n")
+		fmt.Fprint(w, "</html>\n")
+	}
+
+	return nil
+}
+
+func (f *Formatter) lineIDAttribute(line int) string {
+	if !f.linkableLineNumbers {
+		return ""
+	}
+	return fmt.Sprintf(" id=\"%s\"", f.lineID(line))
+}
+
+func (f *Formatter) lineTitleWithLinkIfNeeded(css map[chroma.TokenType]string, lineDigits, line int) string {
+	title := fmt.Sprintf("%*d", lineDigits, line)
+	if !f.linkableLineNumbers {
+		return title
+	}
+	return fmt.Sprintf("<a%s href=\"#%s\">%s</a>", f.styleAttr(css, chroma.LineLink), f.lineID(line), title)
+}
+
+func (f *Formatter) lineID(line int) string {
+	return fmt.Sprintf("%s%d", f.lineNumbersIDPrefix, line)
+}
+
+func (f *Formatter) shouldHighlight(highlightIndex, line int) (bool, bool) {
+	next := false
+	for highlightIndex < len(f.highlightRanges) && line > f.highlightRanges[highlightIndex][1] {
+		highlightIndex++
+		next = true
+	}
+	if highlightIndex < len(f.highlightRanges) {
+		hrange := f.highlightRanges[highlightIndex]
+		if line >= hrange[0] && line <= hrange[1] {
+			return true, next
+		}
+	}
+	return false, next
+}
+
+func (f *Formatter) class(t chroma.TokenType) string {
+	for t != 0 {
+		if cls, ok := chroma.StandardTypes[t]; ok {
+			if cls != "" {
+				return f.prefix + cls
+			}
+			return ""
+		}
+		t = t.Parent()
+	}
+	if cls := chroma.StandardTypes[t]; cls != "" {
+		return f.prefix + cls
+	}
+	return ""
+}
+
+func (f *Formatter) styleAttr(styles map[chroma.TokenType]string, tt chroma.TokenType, extraCSS ...string) string {
+	if f.Classes {
+		cls := f.class(tt)
+		if cls == "" {
+			return ""
+		}
+		return fmt.Sprintf(` class="%s"`, cls)
+	}
+	if _, ok := styles[tt]; !ok {
+		tt = tt.SubCategory()
+		if _, ok := styles[tt]; !ok {
+			tt = tt.Category()
+			if _, ok := styles[tt]; !ok {
+				return ""
+			}
+		}
+	}
+	css := []string{styles[tt]}
+	css = append(css, extraCSS...)
+	return fmt.Sprintf(` style="%s"`, strings.Join(css, ";"))
+}
+
+func (f *Formatter) tabWidthStyle() string {
+	if f.tabWidth != 0 && f.tabWidth != 8 {
+		return fmt.Sprintf("-moz-tab-size: %[1]d; -o-tab-size: %[1]d; tab-size: %[1]d;", f.tabWidth)
+	}
+	return ""
+}
+
+// WriteCSS writes CSS style definitions (without any surrounding HTML).
+func (f *Formatter) WriteCSS(w io.Writer, style *chroma.Style) error {
+	css := f.styleToCSS(style)
+	// Special-case background as it is mapped to the outer ".chroma" class.
+	if _, err := fmt.Fprintf(w, "/* %s */ .%sbg { %s }\n", chroma.Background, f.prefix, css[chroma.Background]); err != nil {
+		return err
+	}
+	// Special-case PreWrapper as it is the ".chroma" class.
+	if _, err := fmt.Fprintf(w, "/* %s */ .%schroma { %s }\n", chroma.PreWrapper, f.prefix, css[chroma.PreWrapper]); err != nil {
+		return err
+	}
+	// Special-case code column of table to expand width.
+	if f.lineNumbers && f.lineNumbersInTable {
+		if _, err := fmt.Fprintf(w, "/* %s */ .%schroma .%s:last-child { width: 100%%; }",
+			chroma.LineTableTD, f.prefix, f.class(chroma.LineTableTD)); err != nil {
+			return err
+		}
+	}
+	// Special-case line number highlighting when targeted.
+	if f.lineNumbers || f.lineNumbersInTable {
+		targetedLineCSS := StyleEntryToCSS(style.Get(chroma.LineHighlight))
+		for _, tt := range []chroma.TokenType{chroma.LineNumbers, chroma.LineNumbersTable} {
+			fmt.Fprintf(w, "/* %s targeted by URL anchor */ .%schroma .%s:target { %s }\n", tt, f.prefix, f.class(tt), targetedLineCSS)
+		}
+	}
+	tts := []int{}
+	for tt := range css {
+		tts = append(tts, int(tt))
+	}
+	sort.Ints(tts)
+	for _, ti := range tts {
+		tt := chroma.TokenType(ti)
+		switch tt {
+		case chroma.Background, chroma.PreWrapper:
+			continue
+		}
+		class := f.class(tt)
+		if class == "" {
+			continue
+		}
+		styles := css[tt]
+		if _, err := fmt.Fprintf(w, "/* %s */ .%schroma .%s { %s }\n", tt, f.prefix, class, styles); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (f *Formatter) styleToCSS(style *chroma.Style) map[chroma.TokenType]string {
+	classes := map[chroma.TokenType]string{}
+	bg := style.Get(chroma.Background)
+	// Convert the style.
+	for t := range chroma.StandardTypes {
+		entry := style.Get(t)
+		if t != chroma.Background {
+			entry = entry.Sub(bg)
+		}
+
+		// Inherit from custom CSS provided by user
+		tokenCategory := t.Category()
+		tokenSubCategory := t.SubCategory()
+		if t != tokenCategory {
+			if css, ok := f.customCSS[tokenCategory]; ok {
+				classes[t] = css
+			}
+		}
+		if tokenCategory != tokenSubCategory {
+			if css, ok := f.customCSS[tokenSubCategory]; ok {
+				classes[t] += css
+			}
+		}
+		// Add custom CSS provided by user
+		if css, ok := f.customCSS[t]; ok {
+			classes[t] += css
+		}
+
+		if !f.allClasses && entry.IsZero() && classes[t] == `` {
+			continue
+		}
+
+		styleEntryCSS := StyleEntryToCSS(entry)
+		if styleEntryCSS != `` && classes[t] != `` {
+			styleEntryCSS += `;`
+		}
+		classes[t] = styleEntryCSS + classes[t]
+	}
+	classes[chroma.Background] += `;` + f.tabWidthStyle()
+	classes[chroma.PreWrapper] += classes[chroma.Background]
+	// Make PreWrapper a grid to show highlight style with full width.
+	if len(f.highlightRanges) > 0 && f.customCSS[chroma.PreWrapper] == `` {
+		classes[chroma.PreWrapper] += `display: grid;`
+	}
+	// Make PreWrapper wrap long lines.
+	if f.wrapLongLines {
+		classes[chroma.PreWrapper] += `white-space: pre-wrap; word-break: break-word;`
+	}
+	lineNumbersStyle := `white-space: pre; -webkit-user-select: none; user-select: none; margin-right: 0.4em; padding: 0 0.4em 0 0.4em;`
+	// All rules begin with default rules followed by user provided rules
+	classes[chroma.Line] = `display: flex;` + classes[chroma.Line]
+	classes[chroma.LineNumbers] = lineNumbersStyle + classes[chroma.LineNumbers]
+	classes[chroma.LineNumbersTable] = lineNumbersStyle + classes[chroma.LineNumbersTable]
+	classes[chroma.LineTable] = "border-spacing: 0; padding: 0; margin: 0; border: 0;" + classes[chroma.LineTable]
+	classes[chroma.LineTableTD] = "vertical-align: top; padding: 0; margin: 0; border: 0;" + classes[chroma.LineTableTD]
+	classes[chroma.LineLink] = "outline: none; text-decoration: none; color: inherit" + classes[chroma.LineLink]
+	return classes
+}
+
+// StyleEntryToCSS converts a chroma.StyleEntry to CSS attributes.
+func StyleEntryToCSS(e chroma.StyleEntry) string {
+	styles := []string{}
+	if e.Colour.IsSet() {
+		styles = append(styles, "color: "+e.Colour.String())
+	}
+	if e.Background.IsSet() {
+		styles = append(styles, "background-color: "+e.Background.String())
+	}
+	if e.Bold == chroma.Yes {
+		styles = append(styles, "font-weight: bold")
+	}
+	if e.Italic == chroma.Yes {
+		styles = append(styles, "font-style: italic")
+	}
+	if e.Underline == chroma.Yes {
+		styles = append(styles, "text-decoration: underline")
+	}
+	return strings.Join(styles, "; ")
+}
+
+// Compress CSS attributes - remove spaces, transform 6-digit colours to 3.
+func compressStyle(s string) string {
+	parts := strings.Split(s, ";")
+	out := []string{}
+	for _, p := range parts {
+		p = strings.Join(strings.Fields(p), " ")
+		p = strings.Replace(p, ": ", ":", 1)
+		if strings.Contains(p, "#") {
+			c := p[len(p)-6:]
+			if c[0] == c[1] && c[2] == c[3] && c[4] == c[5] {
+				p = p[:len(p)-6] + c[0:1] + c[2:3] + c[4:5]
+			}
+		}
+		out = append(out, p)
+	}
+	return strings.Join(out, ";")
+}

vendor/github.com/alecthomas/chroma/v2/formatters/json.go

@@ -0,0 +1,31 @@
+package formatters
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+
+	"github.com/alecthomas/chroma/v2"
+)
+
+// JSON formatter outputs the raw token structures as JSON.
+var JSON = Register("json", chroma.FormatterFunc(func(w io.Writer, s *chroma.Style, it chroma.Iterator) error {
+	fmt.Fprintln(w, "[")
+	i := 0
+	for t := it(); t != chroma.EOF; t = it() {
+		if i > 0 {
+			fmt.Fprintln(w, ",")
+		}
+		i++
+		bytes, err := json.Marshal(t)
+		if err != nil {
+			return err
+		}
+		if _, err := fmt.Fprint(w, "  "+string(bytes)); err != nil {
+			return err
+		}
+	}
+	fmt.Fprintln(w)
+	fmt.Fprintln(w, "]")
+	return nil
+}))

vendor/github.com/alecthomas/chroma/v2/formatters/svg/font_liberation_mono.go

@@ -0,0 +1,51 @@
+// Digitized data copyright (c) 2010 Google Corporation
+// 	with Reserved Font Arimo, Tinos and Cousine.
+// Copyright (c) 2012 Red Hat, Inc.
+// 	with Reserved Font Name Liberation.
+//
+// This Font Software is licensed under the SIL Open Font License, Version 1.1.
+// This license is copied below, and is also available with a FAQ at: http://scripts.sil.org/OFL
+//
+// -----------------------------------------------------------
+// SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+// -----------------------------------------------------------
+//
+// PREAMBLE
+// The goals of the Open Font License (OFL) are to stimulate worldwide development of collaborative font projects, to support the font creation efforts of academic and linguistic communities, and to provide a free and open framework in which fonts may be shared and improved in partnership with others.
+//
+// The OFL allows the licensed fonts to be used, studied, modified and redistributed freely as long as they are not sold by themselves. The fonts, including any derivative works, can be bundled, embedded, redistributed and/or sold with any software provided that any reserved names are not used by derivative works. The fonts and derivatives, however, cannot be released under any other type of license. The requirement for fonts to remain under this license does not apply to any document created using the fonts or their derivatives.
+//
+// DEFINITIONS
+// "Font Software" refers to the set of files released by the Copyright Holder(s) under this license and clearly marked as such. This may include source files, build scripts and documentation.
+//
+// "Reserved Font Name" refers to any names specified as such after the copyright statement(s).
+//
+// "Original Version" refers to the collection of Font Software components as distributed by the Copyright Holder(s).
+//
+// "Modified Version" refers to any derivative made by adding to, deleting, or substituting -- in part or in whole -- any of the components of the Original Version, by changing formats or by porting the Font Software to a new environment.
+//
+// "Author" refers to any designer, engineer, programmer, technical writer or other person who contributed to the Font Software.
+//
+// PERMISSION & CONDITIONS
+// Permission is hereby granted, free of charge, to any person obtaining a copy of the Font Software, to use, study, copy, merge, embed, modify, redistribute, and sell modified and unmodified copies of the Font Software, subject to the following conditions:
+//
+// 1) Neither the Font Software nor any of its individual components, in Original or Modified Versions, may be sold by itself.
+//
+// 2) Original or Modified Versions of the Font Software may be bundled, redistributed and/or sold with any software, provided that each copy contains the above copyright notice and this license. These can be included either as stand-alone text files, human-readable headers or in the appropriate machine-readable metadata fields within text or binary files as long as those fields can be easily viewed by the user.
+//
+// 3) No Modified Version of the Font Software may use the Reserved Font Name(s) unless explicit written permission is granted by the corresponding Copyright Holder. This restriction only applies to the primary font name as presented to the users.
+//
+// 4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font Software shall not be used to promote, endorse or advertise any Modified Version, except to acknowledge the contribution(s) of the Copyright Holder(s) and the Author(s) or with their explicit written permission.
+//
+// 5) The Font Software, modified or unmodified, in part or in whole, must be distributed entirely under this license, and must not be distributed under any other license. The requirement for fonts to remain under this license does not apply to any document created using the Font Software.
+//
+// TERMINATION
+// This license becomes null and void if any of the above conditions are not met.
+//
+// DISCLAIMER
+// THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE FONT SOFTWARE.
+
+package svg
+
+// Liberation Mono as base64 encoded woff (SIL Open Font License)[https://en.wikipedia.org/wiki/Liberation_fonts]
+var FontLiberationMono = `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 truncated

vendor/github.com/alecthomas/chroma/v2/formatters/svg/svg.go

@@ -0,0 +1,222 @@
+// Package svg contains an SVG formatter.
+package svg
+
+import (
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path"
+	"strings"
+
+	"github.com/alecthomas/chroma/v2"
+)
+
+// 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 = os.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.ReplaceAll(token.String(), `	`, "    "))
+		}
+		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.ReplaceAll(token.String(), `	`, "    "))
+			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/v2/formatters/tokens.go

@@ -0,0 +1,18 @@
+package formatters
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/alecthomas/chroma/v2"
+)
+
+// Tokens formatter outputs the raw token structures.
+var Tokens = Register("tokens", chroma.FormatterFunc(func(w io.Writer, s *chroma.Style, it chroma.Iterator) error {
+	for t := it(); t != chroma.EOF; t = it() {
+		if _, err := fmt.Fprintln(w, t.GoString()); err != nil {
+			return err
+		}
+	}
+	return nil
+}))

vendor/github.com/alecthomas/chroma/v2/formatters/tty_indexed.go

@@ -0,0 +1,291 @@
+package formatters
+
+import (
+	"fmt"
+	"io"
+	"math"
+
+	"github.com/alecthomas/chroma/v2"
+)
+
+type ttyTable struct {
+	foreground map[chroma.Colour]string
+	background map[chroma.Colour]string
+}
+
+var c = chroma.MustParseColour
+
+var ttyTables = map[int]*ttyTable{
+	8: {
+		foreground: map[chroma.Colour]string{
+			c("#000000"): "\033[30m", c("#7f0000"): "\033[31m", c("#007f00"): "\033[32m", c("#7f7fe0"): "\033[33m",
+			c("#00007f"): "\033[34m", c("#7f007f"): "\033[35m", c("#007f7f"): "\033[36m", c("#e5e5e5"): "\033[37m",
+			c("#555555"): "\033[1m\033[30m", c("#ff0000"): "\033[1m\033[31m", c("#00ff00"): "\033[1m\033[32m", c("#ffff00"): "\033[1m\033[33m",
+			c("#0000ff"): "\033[1m\033[34m", c("#ff00ff"): "\033[1m\033[35m", c("#00ffff"): "\033[1m\033[36m", c("#ffffff"): "\033[1m\033[37m",
+		},
+		background: map[chroma.Colour]string{
+			c("#000000"): "\033[40m", c("#7f0000"): "\033[41m", c("#007f00"): "\033[42m", c("#7f7fe0"): "\033[43m",
+			c("#00007f"): "\033[44m", c("#7f007f"): "\033[45m", c("#007f7f"): "\033[46m", c("#e5e5e5"): "\033[47m",
+			c("#555555"): "\033[1m\033[40m", c("#ff0000"): "\033[1m\033[41m", c("#00ff00"): "\033[1m\033[42m", c("#ffff00"): "\033[1m\033[43m",
+			c("#0000ff"): "\033[1m\033[44m", c("#ff00ff"): "\033[1m\033[45m", c("#00ffff"): "\033[1m\033[46m", c("#ffffff"): "\033[1m\033[47m",
+		},
+	},
+	16: {
+		foreground: map[chroma.Colour]string{
+			c("#000000"): "\033[30m", c("#7f0000"): "\033[31m", c("#007f00"): "\033[32m", c("#7f7fe0"): "\033[33m",
+			c("#00007f"): "\033[34m", c("#7f007f"): "\033[35m", c("#007f7f"): "\033[36m", c("#e5e5e5"): "\033[37m",
+			c("#555555"): "\033[90m", c("#ff0000"): "\033[91m", c("#00ff00"): "\033[92m", c("#ffff00"): "\033[93m",
+			c("#0000ff"): "\033[94m", c("#ff00ff"): "\033[95m", c("#00ffff"): "\033[96m", c("#ffffff"): "\033[97m",
+		},
+		background: map[chroma.Colour]string{
+			c("#000000"): "\033[40m", c("#7f0000"): "\033[41m", c("#007f00"): "\033[42m", c("#7f7fe0"): "\033[43m",
+			c("#00007f"): "\033[44m", c("#7f007f"): "\033[45m", c("#007f7f"): "\033[46m", c("#e5e5e5"): "\033[47m",
+			c("#555555"): "\033[100m", c("#ff0000"): "\033[101m", c("#00ff00"): "\033[102m", c("#ffff00"): "\033[103m",
+			c("#0000ff"): "\033[104m", c("#ff00ff"): "\033[105m", c("#00ffff"): "\033[106m", c("#ffffff"): "\033[107m",
+		},
+	},
+	256: {
+		foreground: map[chroma.Colour]string{
+			c("#000000"): "\033[38;5;0m", c("#800000"): "\033[38;5;1m", c("#008000"): "\033[38;5;2m", c("#808000"): "\033[38;5;3m",
+			c("#000080"): "\033[38;5;4m", c("#800080"): "\033[38;5;5m", c("#008080"): "\033[38;5;6m", c("#c0c0c0"): "\033[38;5;7m",
+			c("#808080"): "\033[38;5;8m", c("#ff0000"): "\033[38;5;9m", c("#00ff00"): "\033[38;5;10m", c("#ffff00"): "\033[38;5;11m",
+			c("#0000ff"): "\033[38;5;12m", c("#ff00ff"): "\033[38;5;13m", c("#00ffff"): "\033[38;5;14m", c("#ffffff"): "\033[38;5;15m",
+			c("#000000"): "\033[38;5;16m", c("#00005f"): "\033[38;5;17m", c("#000087"): "\033[38;5;18m", c("#0000af"): "\033[38;5;19m",
+			c("#0000d7"): "\033[38;5;20m", c("#0000ff"): "\033[38;5;21m", c("#005f00"): "\033[38;5;22m", c("#005f5f"): "\033[38;5;23m",
+			c("#005f87"): "\033[38;5;24m", c("#005faf"): "\033[38;5;25m", c("#005fd7"): "\033[38;5;26m", c("#005fff"): "\033[38;5;27m",
+			c("#008700"): "\033[38;5;28m", c("#00875f"): "\033[38;5;29m", c("#008787"): "\033[38;5;30m", c("#0087af"): "\033[38;5;31m",
+			c("#0087d7"): "\033[38;5;32m", c("#0087ff"): "\033[38;5;33m", c("#00af00"): "\033[38;5;34m", c("#00af5f"): "\033[38;5;35m",
+			c("#00af87"): "\033[38;5;36m", c("#00afaf"): "\033[38;5;37m", c("#00afd7"): "\033[38;5;38m", c("#00afff"): "\033[38;5;39m",
+			c("#00d700"): "\033[38;5;40m", c("#00d75f"): "\033[38;5;41m", c("#00d787"): "\033[38;5;42m", c("#00d7af"): "\033[38;5;43m",
+			c("#00d7d7"): "\033[38;5;44m", c("#00d7ff"): "\033[38;5;45m", c("#00ff00"): "\033[38;5;46m", c("#00ff5f"): "\033[38;5;47m",
+			c("#00ff87"): "\033[38;5;48m", c("#00ffaf"): "\033[38;5;49m", c("#00ffd7"): "\033[38;5;50m", c("#00ffff"): "\033[38;5;51m",
+			c("#5f0000"): "\033[38;5;52m", c("#5f005f"): "\033[38;5;53m", c("#5f0087"): "\033[38;5;54m", c("#5f00af"): "\033[38;5;55m",
+			c("#5f00d7"): "\033[38;5;56m", c("#5f00ff"): "\033[38;5;57m", c("#5f5f00"): "\033[38;5;58m", c("#5f5f5f"): "\033[38;5;59m",
+			c("#5f5f87"): "\033[38;5;60m", c("#5f5faf"): "\033[38;5;61m", c("#5f5fd7"): "\033[38;5;62m", c("#5f5fff"): "\033[38;5;63m",
+			c("#5f8700"): "\033[38;5;64m", c("#5f875f"): "\033[38;5;65m", c("#5f8787"): "\033[38;5;66m", c("#5f87af"): "\033[38;5;67m",
+			c("#5f87d7"): "\033[38;5;68m", c("#5f87ff"): "\033[38;5;69m", c("#5faf00"): "\033[38;5;70m", c("#5faf5f"): "\033[38;5;71m",
+			c("#5faf87"): "\033[38;5;72m", c("#5fafaf"): "\033[38;5;73m", c("#5fafd7"): "\033[38;5;74m", c("#5fafff"): "\033[38;5;75m",
+			c("#5fd700"): "\033[38;5;76m", c("#5fd75f"): "\033[38;5;77m", c("#5fd787"): "\033[38;5;78m", c("#5fd7af"): "\033[38;5;79m",
+			c("#5fd7d7"): "\033[38;5;80m", c("#5fd7ff"): "\033[38;5;81m", c("#5fff00"): "\033[38;5;82m", c("#5fff5f"): "\033[38;5;83m",
+			c("#5fff87"): "\033[38;5;84m", c("#5fffaf"): "\033[38;5;85m", c("#5fffd7"): "\033[38;5;86m", c("#5fffff"): "\033[38;5;87m",
+			c("#870000"): "\033[38;5;88m", c("#87005f"): "\033[38;5;89m", c("#870087"): "\033[38;5;90m", c("#8700af"): "\033[38;5;91m",
+			c("#8700d7"): "\033[38;5;92m", c("#8700ff"): "\033[38;5;93m", c("#875f00"): "\033[38;5;94m", c("#875f5f"): "\033[38;5;95m",
+			c("#875f87"): "\033[38;5;96m", c("#875faf"): "\033[38;5;97m", c("#875fd7"): "\033[38;5;98m", c("#875fff"): "\033[38;5;99m",
+			c("#878700"): "\033[38;5;100m", c("#87875f"): "\033[38;5;101m", c("#878787"): "\033[38;5;102m", c("#8787af"): "\033[38;5;103m",
+			c("#8787d7"): "\033[38;5;104m", c("#8787ff"): "\033[38;5;105m", c("#87af00"): "\033[38;5;106m", c("#87af5f"): "\033[38;5;107m",
+			c("#87af87"): "\033[38;5;108m", c("#87afaf"): "\033[38;5;109m", c("#87afd7"): "\033[38;5;110m", c("#87afff"): "\033[38;5;111m",
+			c("#87d700"): "\033[38;5;112m", c("#87d75f"): "\033[38;5;113m", c("#87d787"): "\033[38;5;114m", c("#87d7af"): "\033[38;5;115m",
+			c("#87d7d7"): "\033[38;5;116m", c("#87d7ff"): "\033[38;5;117m", c("#87ff00"): "\033[38;5;118m", c("#87ff5f"): "\033[38;5;119m",
+			c("#87ff87"): "\033[38;5;120m", c("#87ffaf"): "\033[38;5;121m", c("#87ffd7"): "\033[38;5;122m", c("#87ffff"): "\033[38;5;123m",
+			c("#af0000"): "\033[38;5;124m", c("#af005f"): "\033[38;5;125m", c("#af0087"): "\033[38;5;126m", c("#af00af"): "\033[38;5;127m",
+			c("#af00d7"): "\033[38;5;128m", c("#af00ff"): "\033[38;5;129m", c("#af5f00"): "\033[38;5;130m", c("#af5f5f"): "\033[38;5;131m",
+			c("#af5f87"): "\033[38;5;132m", c("#af5faf"): "\033[38;5;133m", c("#af5fd7"): "\033[38;5;134m", c("#af5fff"): "\033[38;5;135m",
+			c("#af8700"): "\033[38;5;136m", c("#af875f"): "\033[38;5;137m", c("#af8787"): "\033[38;5;138m", c("#af87af"): "\033[38;5;139m",
+			c("#af87d7"): "\033[38;5;140m", c("#af87ff"): "\033[38;5;141m", c("#afaf00"): "\033[38;5;142m", c("#afaf5f"): "\033[38;5;143m",
+			c("#afaf87"): "\033[38;5;144m", c("#afafaf"): "\033[38;5;145m", c("#afafd7"): "\033[38;5;146m", c("#afafff"): "\033[38;5;147m",
+			c("#afd700"): "\033[38;5;148m", c("#afd75f"): "\033[38;5;149m", c("#afd787"): "\033[38;5;150m", c("#afd7af"): "\033[38;5;151m",
+			c("#afd7d7"): "\033[38;5;152m", c("#afd7ff"): "\033[38;5;153m", c("#afff00"): "\033[38;5;154m", c("#afff5f"): "\033[38;5;155m",
+			c("#afff87"): "\033[38;5;156m", c("#afffaf"): "\033[38;5;157m", c("#afffd7"): "\033[38;5;158m", c("#afffff"): "\033[38;5;159m",
+			c("#d70000"): "\033[38;5;160m", c("#d7005f"): "\033[38;5;161m", c("#d70087"): "\033[38;5;162m", c("#d700af"): "\033[38;5;163m",
+			c("#d700d7"): "\033[38;5;164m", c("#d700ff"): "\033[38;5;165m", c("#d75f00"): "\033[38;5;166m", c("#d75f5f"): "\033[38;5;167m",
+			c("#d75f87"): "\033[38;5;168m", c("#d75faf"): "\033[38;5;169m", c("#d75fd7"): "\033[38;5;170m", c("#d75fff"): "\033[38;5;171m",
+			c("#d78700"): "\033[38;5;172m", c("#d7875f"): "\033[38;5;173m", c("#d78787"): "\033[38;5;174m", c("#d787af"): "\033[38;5;175m",
+			c("#d787d7"): "\033[38;5;176m", c("#d787ff"): "\033[38;5;177m", c("#d7af00"): "\033[38;5;178m", c("#d7af5f"): "\033[38;5;179m",
+			c("#d7af87"): "\033[38;5;180m", c("#d7afaf"): "\033[38;5;181m", c("#d7afd7"): "\033[38;5;182m", c("#d7afff"): "\033[38;5;183m",
+			c("#d7d700"): "\033[38;5;184m", c("#d7d75f"): "\033[38;5;185m", c("#d7d787"): "\033[38;5;186m", c("#d7d7af"): "\033[38;5;187m",
+			c("#d7d7d7"): "\033[38;5;188m", c("#d7d7ff"): "\033[38;5;189m", c("#d7ff00"): "\033[38;5;190m", c("#d7ff5f"): "\033[38;5;191m",
+			c("#d7ff87"): "\033[38;5;192m", c("#d7ffaf"): "\033[38;5;193m", c("#d7ffd7"): "\033[38;5;194m", c("#d7ffff"): "\033[38;5;195m",
+			c("#ff0000"): "\033[38;5;196m", c("#ff005f"): "\033[38;5;197m", c("#ff0087"): "\033[38;5;198m", c("#ff00af"): "\033[38;5;199m",
+			c("#ff00d7"): "\033[38;5;200m", c("#ff00ff"): "\033[38;5;201m", c("#ff5f00"): "\033[38;5;202m", c("#ff5f5f"): "\033[38;5;203m",
+			c("#ff5f87"): "\033[38;5;204m", c("#ff5faf"): "\033[38;5;205m", c("#ff5fd7"): "\033[38;5;206m", c("#ff5fff"): "\033[38;5;207m",
+			c("#ff8700"): "\033[38;5;208m", c("#ff875f"): "\033[38;5;209m", c("#ff8787"): "\033[38;5;210m", c("#ff87af"): "\033[38;5;211m",
+			c("#ff87d7"): "\033[38;5;212m", c("#ff87ff"): "\033[38;5;213m", c("#ffaf00"): "\033[38;5;214m", c("#ffaf5f"): "\033[38;5;215m",
+			c("#ffaf87"): "\033[38;5;216m", c("#ffafaf"): "\033[38;5;217m", c("#ffafd7"): "\033[38;5;218m", c("#ffafff"): "\033[38;5;219m",
+			c("#ffd700"): "\033[38;5;220m", c("#ffd75f"): "\033[38;5;221m", c("#ffd787"): "\033[38;5;222m", c("#ffd7af"): "\033[38;5;223m",
+			c("#ffd7d7"): "\033[38;5;224m", c("#ffd7ff"): "\033[38;5;225m", c("#ffff00"): "\033[38;5;226m", c("#ffff5f"): "\033[38;5;227m",
+			c("#ffff87"): "\033[38;5;228m", c("#ffffaf"): "\033[38;5;229m", c("#ffffd7"): "\033[38;5;230m", c("#ffffff"): "\033[38;5;231m",
+			c("#080808"): "\033[38;5;232m", c("#121212"): "\033[38;5;233m", c("#1c1c1c"): "\033[38;5;234m", c("#262626"): "\033[38;5;235m",
+			c("#303030"): "\033[38;5;236m", c("#3a3a3a"): "\033[38;5;237m", c("#444444"): "\033[38;5;238m", c("#4e4e4e"): "\033[38;5;239m",
+			c("#585858"): "\033[38;5;240m", c("#626262"): "\033[38;5;241m", c("#6c6c6c"): "\033[38;5;242m", c("#767676"): "\033[38;5;243m",
+			c("#808080"): "\033[38;5;244m", c("#8a8a8a"): "\033[38;5;245m", c("#949494"): "\033[38;5;246m", c("#9e9e9e"): "\033[38;5;247m",
+			c("#a8a8a8"): "\033[38;5;248m", c("#b2b2b2"): "\033[38;5;249m", c("#bcbcbc"): "\033[38;5;250m", c("#c6c6c6"): "\033[38;5;251m",
+			c("#d0d0d0"): "\033[38;5;252m", c("#dadada"): "\033[38;5;253m", c("#e4e4e4"): "\033[38;5;254m", c("#eeeeee"): "\033[38;5;255m",
+		},
+		background: map[chroma.Colour]string{
+			c("#000000"): "\033[48;5;0m", c("#800000"): "\033[48;5;1m", c("#008000"): "\033[48;5;2m", c("#808000"): "\033[48;5;3m",
+			c("#000080"): "\033[48;5;4m", c("#800080"): "\033[48;5;5m", c("#008080"): "\033[48;5;6m", c("#c0c0c0"): "\033[48;5;7m",
+			c("#808080"): "\033[48;5;8m", c("#ff0000"): "\033[48;5;9m", c("#00ff00"): "\033[48;5;10m", c("#ffff00"): "\033[48;5;11m",
+			c("#0000ff"): "\033[48;5;12m", c("#ff00ff"): "\033[48;5;13m", c("#00ffff"): "\033[48;5;14m", c("#ffffff"): "\033[48;5;15m",
+			c("#000000"): "\033[48;5;16m", c("#00005f"): "\033[48;5;17m", c("#000087"): "\033[48;5;18m", c("#0000af"): "\033[48;5;19m",
+			c("#0000d7"): "\033[48;5;20m", c("#0000ff"): "\033[48;5;21m", c("#005f00"): "\033[48;5;22m", c("#005f5f"): "\033[48;5;23m",
+			c("#005f87"): "\033[48;5;24m", c("#005faf"): "\033[48;5;25m", c("#005fd7"): "\033[48;5;26m", c("#005fff"): "\033[48;5;27m",
+			c("#008700"): "\033[48;5;28m", c("#00875f"): "\033[48;5;29m", c("#008787"): "\033[48;5;30m", c("#0087af"): "\033[48;5;31m",
+			c("#0087d7"): "\033[48;5;32m", c("#0087ff"): "\033[48;5;33m", c("#00af00"): "\033[48;5;34m", c("#00af5f"): "\033[48;5;35m",
+			c("#00af87"): "\033[48;5;36m", c("#00afaf"): "\033[48;5;37m", c("#00afd7"): "\033[48;5;38m", c("#00afff"): "\033[48;5;39m",
+			c("#00d700"): "\033[48;5;40m", c("#00d75f"): "\033[48;5;41m", c("#00d787"): "\033[48;5;42m", c("#00d7af"): "\033[48;5;43m",
+			c("#00d7d7"): "\033[48;5;44m", c("#00d7ff"): "\033[48;5;45m", c("#00ff00"): "\033[48;5;46m", c("#00ff5f"): "\033[48;5;47m",
+			c("#00ff87"): "\033[48;5;48m", c("#00ffaf"): "\033[48;5;49m", c("#00ffd7"): "\033[48;5;50m", c("#00ffff"): "\033[48;5;51m",
+			c("#5f0000"): "\033[48;5;52m", c("#5f005f"): "\033[48;5;53m", c("#5f0087"): "\033[48;5;54m", c("#5f00af"): "\033[48;5;55m",
+			c("#5f00d7"): "\033[48;5;56m", c("#5f00ff"): "\033[48;5;57m", c("#5f5f00"): "\033[48;5;58m", c("#5f5f5f"): "\033[48;5;59m",
+			c("#5f5f87"): "\033[48;5;60m", c("#5f5faf"): "\033[48;5;61m", c("#5f5fd7"): "\033[48;5;62m", c("#5f5fff"): "\033[48;5;63m",
+			c("#5f8700"): "\033[48;5;64m", c("#5f875f"): "\033[48;5;65m", c("#5f8787"): "\033[48;5;66m", c("#5f87af"): "\033[48;5;67m",
+			c("#5f87d7"): "\033[48;5;68m", c("#5f87ff"): "\033[48;5;69m", c("#5faf00"): "\033[48;5;70m", c("#5faf5f"): "\033[48;5;71m",
+			c("#5faf87"): "\033[48;5;72m", c("#5fafaf"): "\033[48;5;73m", c("#5fafd7"): "\033[48;5;74m", c("#5fafff"): "\033[48;5;75m",
+			c("#5fd700"): "\033[48;5;76m", c("#5fd75f"): "\033[48;5;77m", c("#5fd787"): "\033[48;5;78m", c("#5fd7af"): "\033[48;5;79m",
+			c("#5fd7d7"): "\033[48;5;80m", c("#5fd7ff"): "\033[48;5;81m", c("#5fff00"): "\033[48;5;82m", c("#5fff5f"): "\033[48;5;83m",
+			c("#5fff87"): "\033[48;5;84m", c("#5fffaf"): "\033[48;5;85m", c("#5fffd7"): "\033[48;5;86m", c("#5fffff"): "\033[48;5;87m",
+			c("#870000"): "\033[48;5;88m", c("#87005f"): "\033[48;5;89m", c("#870087"): "\033[48;5;90m", c("#8700af"): "\033[48;5;91m",
+			c("#8700d7"): "\033[48;5;92m", c("#8700ff"): "\033[48;5;93m", c("#875f00"): "\033[48;5;94m", c("#875f5f"): "\033[48;5;95m",
+			c("#875f87"): "\033[48;5;96m", c("#875faf"): "\033[48;5;97m", c("#875fd7"): "\033[48;5;98m", c("#875fff"): "\033[48;5;99m",
+			c("#878700"): "\033[48;5;100m", c("#87875f"): "\033[48;5;101m", c("#878787"): "\033[48;5;102m", c("#8787af"): "\033[48;5;103m",
+			c("#8787d7"): "\033[48;5;104m", c("#8787ff"): "\033[48;5;105m", c("#87af00"): "\033[48;5;106m", c("#87af5f"): "\033[48;5;107m",
+			c("#87af87"): "\033[48;5;108m", c("#87afaf"): "\033[48;5;109m", c("#87afd7"): "\033[48;5;110m", c("#87afff"): "\033[48;5;111m",
+			c("#87d700"): "\033[48;5;112m", c("#87d75f"): "\033[48;5;113m", c("#87d787"): "\033[48;5;114m", c("#87d7af"): "\033[48;5;115m",
+			c("#87d7d7"): "\033[48;5;116m", c("#87d7ff"): "\033[48;5;117m", c("#87ff00"): "\033[48;5;118m", c("#87ff5f"): "\033[48;5;119m",
+			c("#87ff87"): "\033[48;5;120m", c("#87ffaf"): "\033[48;5;121m", c("#87ffd7"): "\033[48;5;122m", c("#87ffff"): "\033[48;5;123m",
+			c("#af0000"): "\033[48;5;124m", c("#af005f"): "\033[48;5;125m", c("#af0087"): "\033[48;5;126m", c("#af00af"): "\033[48;5;127m",
+			c("#af00d7"): "\033[48;5;128m", c("#af00ff"): "\033[48;5;129m", c("#af5f00"): "\033[48;5;130m", c("#af5f5f"): "\033[48;5;131m",
+			c("#af5f87"): "\033[48;5;132m", c("#af5faf"): "\033[48;5;133m", c("#af5fd7"): "\033[48;5;134m", c("#af5fff"): "\033[48;5;135m",
+			c("#af8700"): "\033[48;5;136m", c("#af875f"): "\033[48;5;137m", c("#af8787"): "\033[48;5;138m", c("#af87af"): "\033[48;5;139m",
+			c("#af87d7"): "\033[48;5;140m", c("#af87ff"): "\033[48;5;141m", c("#afaf00"): "\033[48;5;142m", c("#afaf5f"): "\033[48;5;143m",
+			c("#afaf87"): "\033[48;5;144m", c("#afafaf"): "\033[48;5;145m", c("#afafd7"): "\033[48;5;146m", c("#afafff"): "\033[48;5;147m",
+			c("#afd700"): "\033[48;5;148m", c("#afd75f"): "\033[48;5;149m", c("#afd787"): "\033[48;5;150m", c("#afd7af"): "\033[48;5;151m",
+			c("#afd7d7"): "\033[48;5;152m", c("#afd7ff"): "\033[48;5;153m", c("#afff00"): "\033[48;5;154m", c("#afff5f"): "\033[48;5;155m",
+			c("#afff87"): "\033[48;5;156m", c("#afffaf"): "\033[48;5;157m", c("#afffd7"): "\033[48;5;158m", c("#afffff"): "\033[48;5;159m",
+			c("#d70000"): "\033[48;5;160m", c("#d7005f"): "\033[48;5;161m", c("#d70087"): "\033[48;5;162m", c("#d700af"): "\033[48;5;163m",
+			c("#d700d7"): "\033[48;5;164m", c("#d700ff"): "\033[48;5;165m", c("#d75f00"): "\033[48;5;166m", c("#d75f5f"): "\033[48;5;167m",
+			c("#d75f87"): "\033[48;5;168m", c("#d75faf"): "\033[48;5;169m", c("#d75fd7"): "\033[48;5;170m", c("#d75fff"): "\033[48;5;171m",
+			c("#d78700"): "\033[48;5;172m", c("#d7875f"): "\033[48;5;173m", c("#d78787"): "\033[48;5;174m", c("#d787af"): "\033[48;5;175m",
+			c("#d787d7"): "\033[48;5;176m", c("#d787ff"): "\033[48;5;177m", c("#d7af00"): "\033[48;5;178m", c("#d7af5f"): "\033[48;5;179m",
+			c("#d7af87"): "\033[48;5;180m", c("#d7afaf"): "\033[48;5;181m", c("#d7afd7"): "\033[48;5;182m", c("#d7afff"): "\033[48;5;183m",
+			c("#d7d700"): "\033[48;5;184m", c("#d7d75f"): "\033[48;5;185m", c("#d7d787"): "\033[48;5;186m", c("#d7d7af"): "\033[48;5;187m",
+			c("#d7d7d7"): "\033[48;5;188m", c("#d7d7ff"): "\033[48;5;189m", c("#d7ff00"): "\033[48;5;190m", c("#d7ff5f"): "\033[48;5;191m",
+			c("#d7ff87"): "\033[48;5;192m", c("#d7ffaf"): "\033[48;5;193m", c("#d7ffd7"): "\033[48;5;194m", c("#d7ffff"): "\033[48;5;195m",
+			c("#ff0000"): "\033[48;5;196m", c("#ff005f"): "\033[48;5;197m", c("#ff0087"): "\033[48;5;198m", c("#ff00af"): "\033[48;5;199m",
+			c("#ff00d7"): "\033[48;5;200m", c("#ff00ff"): "\033[48;5;201m", c("#ff5f00"): "\033[48;5;202m", c("#ff5f5f"): "\033[48;5;203m",
+			c("#ff5f87"): "\033[48;5;204m", c("#ff5faf"): "\033[48;5;205m", c("#ff5fd7"): "\033[48;5;206m", c("#ff5fff"): "\033[48;5;207m",
+			c("#ff8700"): "\033[48;5;208m", c("#ff875f"): "\033[48;5;209m", c("#ff8787"): "\033[48;5;210m", c("#ff87af"): "\033[48;5;211m",
+			c("#ff87d7"): "\033[48;5;212m", c("#ff87ff"): "\033[48;5;213m", c("#ffaf00"): "\033[48;5;214m", c("#ffaf5f"): "\033[48;5;215m",
+			c("#ffaf87"): "\033[48;5;216m", c("#ffafaf"): "\033[48;5;217m", c("#ffafd7"): "\033[48;5;218m", c("#ffafff"): "\033[48;5;219m",
+			c("#ffd700"): "\033[48;5;220m", c("#ffd75f"): "\033[48;5;221m", c("#ffd787"): "\033[48;5;222m", c("#ffd7af"): "\033[48;5;223m",
+			c("#ffd7d7"): "\033[48;5;224m", c("#ffd7ff"): "\033[48;5;225m", c("#ffff00"): "\033[48;5;226m", c("#ffff5f"): "\033[48;5;227m",
+			c("#ffff87"): "\033[48;5;228m", c("#ffffaf"): "\033[48;5;229m", c("#ffffd7"): "\033[48;5;230m", c("#ffffff"): "\033[48;5;231m",
+			c("#080808"): "\033[48;5;232m", c("#121212"): "\033[48;5;233m", c("#1c1c1c"): "\033[48;5;234m", c("#262626"): "\033[48;5;235m",
+			c("#303030"): "\033[48;5;236m", c("#3a3a3a"): "\033[48;5;237m", c("#444444"): "\033[48;5;238m", c("#4e4e4e"): "\033[48;5;239m",
+			c("#585858"): "\033[48;5;240m", c("#626262"): "\033[48;5;241m", c("#6c6c6c"): "\033[48;5;242m", c("#767676"): "\033[48;5;243m",
+			c("#808080"): "\033[48;5;244m", c("#8a8a8a"): "\033[48;5;245m", c("#949494"): "\033[48;5;246m", c("#9e9e9e"): "\033[48;5;247m",
+			c("#a8a8a8"): "\033[48;5;248m", c("#b2b2b2"): "\033[48;5;249m", c("#bcbcbc"): "\033[48;5;250m", c("#c6c6c6"): "\033[48;5;251m",
+			c("#d0d0d0"): "\033[48;5;252m", c("#dadada"): "\033[48;5;253m", c("#e4e4e4"): "\033[48;5;254m", c("#eeeeee"): "\033[48;5;255m",
+		},
+	},
+}
+
+func entryToEscapeSequence(table *ttyTable, entry chroma.StyleEntry) string {
+	out := ""
+	if entry.Bold == chroma.Yes {
+		out += "\033[1m"
+	}
+	if entry.Underline == chroma.Yes {
+		out += "\033[4m"
+	}
+	if entry.Italic == chroma.Yes {
+		out += "\033[3m"
+	}
+	if entry.Colour.IsSet() {
+		out += table.foreground[findClosest(table, entry.Colour)]
+	}
+	if entry.Background.IsSet() {
+		out += table.background[findClosest(table, entry.Background)]
+	}
+	return out
+}
+
+func findClosest(table *ttyTable, seeking chroma.Colour) chroma.Colour {
+	closestColour := chroma.Colour(0)
+	closest := float64(math.MaxFloat64)
+	for colour := range table.foreground {
+		distance := colour.Distance(seeking)
+		if distance < closest {
+			closest = distance
+			closestColour = colour
+		}
+	}
+	return closestColour
+}
+
+func styleToEscapeSequence(table *ttyTable, style *chroma.Style) map[chroma.TokenType]string {
+	style = clearBackground(style)
+	out := map[chroma.TokenType]string{}
+	for _, ttype := range style.Types() {
+		entry := style.Get(ttype)
+		out[ttype] = entryToEscapeSequence(table, entry)
+	}
+	return out
+}
+
+// Clear the background colour.
+func clearBackground(style *chroma.Style) *chroma.Style {
+	builder := style.Builder()
+	bg := builder.Get(chroma.Background)
+	bg.Background = 0
+	bg.NoInherit = true
+	builder.AddEntry(chroma.Background, bg)
+	style, _ = builder.Build()
+	return style
+}
+
+type indexedTTYFormatter struct {
+	table *ttyTable
+}
+
+func (c *indexedTTYFormatter) Format(w io.Writer, style *chroma.Style, it chroma.Iterator) (err error) {
+	theme := styleToEscapeSequence(c.table, style)
+	for token := it(); token != chroma.EOF; token = it() {
+		clr, ok := theme[token.Type]
+
+		// This search mimics how styles.Get() is used in tty_truecolour.go.
+		if !ok {
+			clr, ok = theme[token.Type.SubCategory()]
+			if !ok {
+				clr, ok = theme[token.Type.Category()]
+				if !ok {
+					clr, ok = theme[chroma.Text]
+					if !ok {
+						clr = theme[chroma.Background]
+					}
+				}
+			}
+		}
+
+		if clr != "" {
+			fmt.Fprint(w, clr)
+		}
+		fmt.Fprint(w, token.Value)
+		if clr != "" {
+			fmt.Fprintf(w, "\033[0m")
+		}
+	}
+	return nil
+}
+
+// TTY is an 8-colour terminal formatter.
+//
+// The Lab colour space is used to map RGB values to the most appropriate index colour.
+var TTY = Register("terminal", &indexedTTYFormatter{ttyTables[8]})
+
+// TTY8 is an 8-colour terminal formatter.
+//
+// The Lab colour space is used to map RGB values to the most appropriate index colour.
+var TTY8 = Register("terminal8", &indexedTTYFormatter{ttyTables[8]})
+
+// TTY16 is a 16-colour terminal formatter.
+//
+// It uses \033[3xm for normal colours and \033[90Xm for bright colours.
+//
+// The Lab colour space is used to map RGB values to the most appropriate index colour.
+var TTY16 = Register("terminal16", &indexedTTYFormatter{ttyTables[16]})
+
+// TTY256 is a 256-colour terminal formatter.
+//
+// The Lab colour space is used to map RGB values to the most appropriate index colour.
+var TTY256 = Register("terminal256", &indexedTTYFormatter{ttyTables[256]})

vendor/github.com/alecthomas/chroma/v2/formatters/tty_truecolour.go

@@ -0,0 +1,42 @@
+package formatters
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/alecthomas/chroma/v2"
+)
+
+// TTY16m is a true-colour terminal formatter.
+var TTY16m = Register("terminal16m", chroma.FormatterFunc(trueColourFormatter))
+
+func trueColourFormatter(w io.Writer, style *chroma.Style, it chroma.Iterator) error {
+	style = clearBackground(style)
+	for token := it(); token != chroma.EOF; token = it() {
+		entry := style.Get(token.Type)
+		if !entry.IsZero() {
+			out := ""
+			if entry.Bold == chroma.Yes {
+				out += "\033[1m"
+			}
+			if entry.Underline == chroma.Yes {
+				out += "\033[4m"
+			}
+			if entry.Italic == chroma.Yes {
+				out += "\033[3m"
+			}
+			if entry.Colour.IsSet() {
+				out += fmt.Sprintf("\033[38;2;%d;%d;%dm", entry.Colour.Red(), entry.Colour.Green(), entry.Colour.Blue())
+			}
+			if entry.Background.IsSet() {
+				out += fmt.Sprintf("\033[48;2;%d;%d;%dm", entry.Background.Red(), entry.Background.Green(), entry.Background.Blue())
+			}
+			fmt.Fprint(w, out)
+		}
+		fmt.Fprint(w, token.Value)
+		if !entry.IsZero() {
+			fmt.Fprint(w, "\033[0m")
+		}
+	}
+	return nil
+}