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66 lines
2.5 KiB
66 lines
2.5 KiB
package o
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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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// Ocaml lexer.
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var Ocaml = internal.Register(MustNewLexer(
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&Config{
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Name: "OCaml",
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Aliases: []string{"ocaml"},
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Filenames: []string{"*.ml", "*.mli", "*.mll", "*.mly"},
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MimeTypes: []string{"text/x-ocaml"},
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},
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Rules{
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"escape-sequence": {
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{`\\[\\"\'ntbr]`, LiteralStringEscape, nil},
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{`\\[0-9]{3}`, LiteralStringEscape, nil},
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{`\\x[0-9a-fA-F]{2}`, LiteralStringEscape, nil},
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},
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"root": {
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{`\s+`, Text, nil},
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{`false|true|\(\)|\[\]`, NameBuiltinPseudo, nil},
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{`\b([A-Z][\w\']*)(?=\s*\.)`, NameNamespace, Push("dotted")},
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{`\b([A-Z][\w\']*)`, NameClass, nil},
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{`\(\*(?![)])`, Comment, Push("comment")},
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{`\b(as|assert|begin|class|constraint|do|done|downto|else|end|exception|external|false|for|fun|function|functor|if|in|include|inherit|initializer|lazy|let|match|method|module|mutable|new|object|of|open|private|raise|rec|sig|struct|then|to|true|try|type|value|val|virtual|when|while|with)\b`, Keyword, nil},
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{"(~|\\}|\\|]|\\||\\{<|\\{|`|_|]|\\[\\||\\[>|\\[<|\\[|\\?\\?|\\?|>\\}|>]|>|=|<-|<|;;|;|:>|:=|::|:|\\.\\.|\\.|->|-\\.|-|,|\\+|\\*|\\)|\\(|&&|&|#|!=)", Operator, nil},
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{`([=<>@^|&+\*/$%-]|[!?~])?[!$%&*+\./:<=>?@^|~-]`, Operator, nil},
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{`\b(and|asr|land|lor|lsl|lxor|mod|or)\b`, OperatorWord, nil},
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{`\b(unit|int|float|bool|string|char|list|array)\b`, KeywordType, nil},
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{`[^\W\d][\w']*`, Name, nil},
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{`-?\d[\d_]*(.[\d_]*)?([eE][+\-]?\d[\d_]*)`, LiteralNumberFloat, nil},
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{`0[xX][\da-fA-F][\da-fA-F_]*`, LiteralNumberHex, nil},
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{`0[oO][0-7][0-7_]*`, LiteralNumberOct, nil},
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{`0[bB][01][01_]*`, LiteralNumberBin, nil},
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{`\d[\d_]*`, LiteralNumberInteger, nil},
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{`'(?:(\\[\\\"'ntbr ])|(\\[0-9]{3})|(\\x[0-9a-fA-F]{2}))'`, 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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"comment": {
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{`[^(*)]+`, Comment, nil},
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{`\(\*`, Comment, Push()},
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{`\*\)`, Comment, Pop(1)},
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{`[(*)]`, Comment, nil},
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},
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"string": {
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{`[^\\"]+`, LiteralStringDouble, nil},
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Include("escape-sequence"),
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{`\\\n`, LiteralStringDouble, nil},
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{`"`, LiteralStringDouble, Pop(1)},
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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\']*`, NameClass, 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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},
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))
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