95 lines
4.1 KiB
Go
95 lines
4.1 KiB
Go
package f
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import (
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. "github.com/alecthomas/chroma" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Fsharp lexer.
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var Fsharp = internal.Register(MustNewLexer(
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&Config{
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Name: "FSharp",
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Aliases: []string{"fsharp"},
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Filenames: []string{"*.fs", "*.fsi"},
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MimeTypes: []string{"text/x-fsharp"},
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},
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Rules{
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"escape-sequence": {
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{`\\[\\"\'ntbrafv]`, LiteralStringEscape, nil},
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{`\\[0-9]{3}`, LiteralStringEscape, nil},
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{`\\u[0-9a-fA-F]{4}`, LiteralStringEscape, nil},
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{`\\U[0-9a-fA-F]{8}`, LiteralStringEscape, nil},
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},
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"root": {
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{`\s+`, Text, nil},
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{`\(\)|\[\]`, NameBuiltinPseudo, nil},
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{`\b(?<!\.)([A-Z][\w\']*)(?=\s*\.)`, NameNamespace, Push("dotted")},
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{`\b([A-Z][\w\']*)`, Name, nil},
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{`///.*?\n`, LiteralStringDoc, nil},
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{`//.*?\n`, CommentSingle, nil},
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{`\(\*(?!\))`, Comment, Push("comment")},
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{`@"`, LiteralString, Push("lstring")},
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{`"""`, LiteralString, Push("tqs")},
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{`"`, LiteralString, Push("string")},
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{`\b(open|module)(\s+)([\w.]+)`, ByGroups(Keyword, Text, NameNamespace), nil},
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{`\b(let!?)(\s+)(\w+)`, ByGroups(Keyword, Text, NameVariable), nil},
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{`\b(type)(\s+)(\w+)`, ByGroups(Keyword, Text, NameClass), nil},
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{`\b(member|override)(\s+)(\w+)(\.)(\w+)`, ByGroups(Keyword, Text, Name, Punctuation, NameFunction), nil},
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{`\b(abstract|as|assert|base|begin|class|default|delegate|do!|do|done|downcast|downto|elif|else|end|exception|extern|false|finally|for|function|fun|global|if|inherit|inline|interface|internal|in|lazy|let!|let|match|member|module|mutable|namespace|new|null|of|open|override|private|public|rec|return!|return|select|static|struct|then|to|true|try|type|upcast|use!|use|val|void|when|while|with|yield!|yield|atomic|break|checked|component|const|constraint|constructor|continue|eager|event|external|fixed|functor|include|method|mixin|object|parallel|process|protected|pure|sealed|tailcall|trait|virtual|volatile)\b`, Keyword, nil},
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{"``([^`\\n\\r\\t]|`[^`\\n\\r\\t])+``", Name, nil},
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{"(!=|#|&&|&|\\(|\\)|\\*|\\+|,|-\\.|->|-|\\.\\.|\\.|::|:=|:>|:|;;|;|<-|<\\]|<|>\\]|>|\\?\\?|\\?|\\[<|\\[\\||\\[|\\]|_|`|\\{|\\|\\]|\\||\\}|~|<@@|<@|=|@>|@@>)", Operator, nil},
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{`([=<>@^|&+\*/$%-]|[!?~])?[!$%&*+\./:<=>?@^|~-]`, Operator, nil},
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{`\b(and|or|not)\b`, OperatorWord, nil},
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{`\b(sbyte|byte|char|nativeint|unativeint|float32|single|float|double|int8|uint8|int16|uint16|int32|uint32|int64|uint64|decimal|unit|bool|string|list|exn|obj|enum)\b`, KeywordType, nil},
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{`#[ \t]*(if|endif|else|line|nowarn|light|\d+)\b.*?\n`, CommentPreproc, nil},
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{`[^\W\d][\w']*`, Name, nil},
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{`\d[\d_]*[uU]?[yslLnQRZINGmM]?`, LiteralNumberInteger, nil},
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{`0[xX][\da-fA-F][\da-fA-F_]*[uU]?[yslLn]?[fF]?`, LiteralNumberHex, nil},
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{`0[oO][0-7][0-7_]*[uU]?[yslLn]?`, LiteralNumberOct, nil},
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{`0[bB][01][01_]*[uU]?[yslLn]?`, LiteralNumberBin, nil},
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{`-?\d[\d_]*(.[\d_]*)?([eE][+\-]?\d[\d_]*)[fFmM]?`, LiteralNumberFloat, nil},
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{`'(?:(\\[\\\"'ntbr ])|(\\[0-9]{3})|(\\x[0-9a-fA-F]{2}))'B?`, LiteralStringChar, nil},
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{`'.'`, LiteralStringChar, nil},
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{`'`, Keyword, nil},
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{`@?"`, LiteralStringDouble, Push("string")},
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{`[~?][a-z][\w\']*:`, NameVariable, nil},
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},
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"dotted": {
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{`\s+`, Text, nil},
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{`\.`, Punctuation, nil},
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{`[A-Z][\w\']*(?=\s*\.)`, NameNamespace, nil},
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{`[A-Z][\w\']*`, Name, Pop(1)},
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{`[a-z_][\w\']*`, Name, Pop(1)},
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Default(Pop(1)),
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},
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"comment": {
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{`[^(*)@"]+`, Comment, nil},
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{`\(\*`, Comment, Push()},
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{`\*\)`, Comment, Pop(1)},
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{`@"`, LiteralString, Push("lstring")},
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{`"""`, LiteralString, Push("tqs")},
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{`"`, LiteralString, Push("string")},
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{`[(*)@]`, Comment, nil},
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},
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"string": {
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{`[^\\"]+`, LiteralString, nil},
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Include("escape-sequence"),
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{`\\\n`, LiteralString, nil},
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{`\n`, LiteralString, nil},
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{`"B?`, LiteralString, Pop(1)},
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},
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"lstring": {
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{`[^"]+`, LiteralString, nil},
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{`\n`, LiteralString, nil},
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{`""`, LiteralString, nil},
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{`"B?`, LiteralString, Pop(1)},
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},
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"tqs": {
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{`[^"]+`, LiteralString, nil},
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{`\n`, LiteralString, nil},
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{`"""B?`, LiteralString, Pop(1)},
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{`"`, LiteralString, nil},
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},
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},
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))
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