diff vendor/github.com/alecthomas/chroma/v2/lexers/rst.go @ 66:787b5ee0289d draft

Use vendored modules Signed-off-by: Izuru Yakumo <yakumo.izuru@chaotic.ninja>
author yakumo.izuru
date Sun, 23 Jul 2023 13:18:53 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/github.com/alecthomas/chroma/v2/lexers/rst.go	Sun Jul 23 13:18:53 2023 +0000
@@ -0,0 +1,89 @@
+package lexers
+
+import (
+	"strings"
+
+	. "github.com/alecthomas/chroma/v2" // nolint
+)
+
+// Restructuredtext lexer.
+var Restructuredtext = Register(MustNewLexer(
+	&Config{
+		Name:      "reStructuredText",
+		Aliases:   []string{"rst", "rest", "restructuredtext"},
+		Filenames: []string{"*.rst", "*.rest"},
+		MimeTypes: []string{"text/x-rst", "text/prs.fallenstein.rst"},
+	},
+	restructuredtextRules,
+))
+
+func restructuredtextRules() Rules {
+	return Rules{
+		"root": {
+			{"^(=+|-+|`+|:+|\\.+|\\'+|\"+|~+|\\^+|_+|\\*+|\\++|#+)([ \\t]*\\n)(.+)(\\n)(\\1)(\\n)", ByGroups(GenericHeading, Text, GenericHeading, Text, GenericHeading, Text), nil},
+			{"^(\\S.*)(\\n)(={3,}|-{3,}|`{3,}|:{3,}|\\.{3,}|\\'{3,}|\"{3,}|~{3,}|\\^{3,}|_{3,}|\\*{3,}|\\+{3,}|#{3,})(\\n)", ByGroups(GenericHeading, Text, GenericHeading, Text), nil},
+			{`^(\s*)([-*+])( .+\n(?:\1  .+\n)*)`, ByGroups(Text, LiteralNumber, UsingSelf("inline")), nil},
+			{`^(\s*)([0-9#ivxlcmIVXLCM]+\.)( .+\n(?:\1  .+\n)*)`, ByGroups(Text, LiteralNumber, UsingSelf("inline")), nil},
+			{`^(\s*)(\(?[0-9#ivxlcmIVXLCM]+\))( .+\n(?:\1  .+\n)*)`, ByGroups(Text, LiteralNumber, UsingSelf("inline")), nil},
+			{`^(\s*)([A-Z]+\.)( .+\n(?:\1  .+\n)+)`, ByGroups(Text, LiteralNumber, UsingSelf("inline")), nil},
+			{`^(\s*)(\(?[A-Za-z]+\))( .+\n(?:\1  .+\n)+)`, ByGroups(Text, LiteralNumber, UsingSelf("inline")), nil},
+			{`^(\s*)(\|)( .+\n(?:\|  .+\n)*)`, ByGroups(Text, Operator, UsingSelf("inline")), nil},
+			{`^( *\.\.)(\s*)((?:source)?code(?:-block)?)(::)([ \t]*)([^\n]+)(\n[ \t]*\n)([ \t]+)(.*)(\n)((?:(?:\8.*|)\n)+)`, EmitterFunc(rstCodeBlock), nil},
+			{`^( *\.\.)(\s*)([\w:-]+?)(::)(?:([ \t]*)(.*))`, ByGroups(Punctuation, Text, OperatorWord, Punctuation, Text, UsingSelf("inline")), nil},
+			{`^( *\.\.)(\s*)(_(?:[^:\\]|\\.)+:)(.*?)$`, ByGroups(Punctuation, Text, NameTag, UsingSelf("inline")), nil},
+			{`^( *\.\.)(\s*)(\[.+\])(.*?)$`, ByGroups(Punctuation, Text, NameTag, UsingSelf("inline")), nil},
+			{`^( *\.\.)(\s*)(\|.+\|)(\s*)([\w:-]+?)(::)(?:([ \t]*)(.*))`, ByGroups(Punctuation, Text, NameTag, Text, OperatorWord, Punctuation, Text, UsingSelf("inline")), nil},
+			{`^ *\.\..*(\n( +.*\n|\n)+)?`, CommentPreproc, nil},
+			{`^( *)(:[a-zA-Z-]+:)(\s*)$`, ByGroups(Text, NameClass, Text), nil},
+			{`^( *)(:.*?:)([ \t]+)(.*?)$`, ByGroups(Text, NameClass, Text, NameFunction), nil},
+			{`^(\S.*(?<!::)\n)((?:(?: +.*)\n)+)`, ByGroups(UsingSelf("inline"), UsingSelf("inline")), nil},
+			{`(::)(\n[ \t]*\n)([ \t]+)(.*)(\n)((?:(?:\3.*|)\n)+)`, ByGroups(LiteralStringEscape, Text, LiteralString, LiteralString, Text, LiteralString), nil},
+			Include("inline"),
+		},
+		"inline": {
+			{`\\.`, Text, nil},
+			{"``", LiteralString, Push("literal")},
+			{"(`.+?)(<.+?>)(`__?)", ByGroups(LiteralString, LiteralStringInterpol, LiteralString), nil},
+			{"`.+?`__?", LiteralString, nil},
+			{"(`.+?`)(:[a-zA-Z0-9:-]+?:)?", ByGroups(NameVariable, NameAttribute), nil},
+			{"(:[a-zA-Z0-9:-]+?:)(`.+?`)", ByGroups(NameAttribute, NameVariable), nil},
+			{`\*\*.+?\*\*`, GenericStrong, nil},
+			{`\*.+?\*`, GenericEmph, nil},
+			{`\[.*?\]_`, LiteralString, nil},
+			{`<.+?>`, NameTag, nil},
+			{"[^\\\\\\n\\[*`:]+", Text, nil},
+			{`.`, Text, nil},
+		},
+		"literal": {
+			{"[^`]+", LiteralString, nil},
+			{"``((?=$)|(?=[-/:.,; \\n\\x00\\\u2010\\\u2011\\\u2012\\\u2013\\\u2014\\\u00a0\\'\\\"\\)\\]\\}\\>\\\u2019\\\u201d\\\u00bb\\!\\?]))", LiteralString, Pop(1)},
+			{"`", LiteralString, nil},
+		},
+	}
+}
+
+func rstCodeBlock(groups []string, state *LexerState) Iterator {
+	iterators := []Iterator{}
+	tokens := []Token{
+		{Punctuation, groups[1]},
+		{Text, groups[2]},
+		{OperatorWord, groups[3]},
+		{Punctuation, groups[4]},
+		{Text, groups[5]},
+		{Keyword, groups[6]},
+		{Text, groups[7]},
+	}
+	code := strings.Join(groups[8:], "")
+	lexer := Get(groups[6])
+	if lexer == nil {
+		tokens = append(tokens, Token{String, code})
+		iterators = append(iterators, Literator(tokens...))
+	} else {
+		sub, err := lexer.Tokenise(nil, code)
+		if err != nil {
+			panic(err)
+		}
+		iterators = append(iterators, Literator(tokens...), sub)
+	}
+	return Concaterator(iterators...)
+}