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42 lines
1.2 KiB
42 lines
1.2 KiB
package a
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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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// Abnf lexer.
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var Abnf = internal.Register(MustNewLazyLexer(
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&Config{
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Name: "ABNF",
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Aliases: []string{"abnf"},
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Filenames: []string{"*.abnf"},
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MimeTypes: []string{"text/x-abnf"},
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},
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abnfRules,
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))
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func abnfRules() Rules {
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return Rules{
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"root": {
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{`;.*$`, CommentSingle, nil},
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{`(%[si])?"[^"]*"`, Literal, nil},
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{`%b[01]+\-[01]+\b`, Literal, nil},
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{`%b[01]+(\.[01]+)*\b`, Literal, nil},
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{`%d[0-9]+\-[0-9]+\b`, Literal, nil},
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{`%d[0-9]+(\.[0-9]+)*\b`, Literal, nil},
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{`%x[0-9a-fA-F]+\-[0-9a-fA-F]+\b`, Literal, nil},
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{`%x[0-9a-fA-F]+(\.[0-9a-fA-F]+)*\b`, Literal, nil},
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{`\b[0-9]+\*[0-9]+`, Operator, nil},
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{`\b[0-9]+\*`, Operator, nil},
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{`\b[0-9]+`, Operator, nil},
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{`\*`, Operator, nil},
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{Words(``, `\b`, `ALPHA`, `BIT`, `CHAR`, `CR`, `CRLF`, `CTL`, `DIGIT`, `DQUOTE`, `HEXDIG`, `HTAB`, `LF`, `LWSP`, `OCTET`, `SP`, `VCHAR`, `WSP`), Keyword, nil},
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{`[a-zA-Z][a-zA-Z0-9-]+\b`, NameClass, nil},
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{`(=/|=|/)`, Operator, nil},
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{`[\[\]()]`, Punctuation, nil},
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{`\s+`, Text, nil},
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{`.`, Text, nil},
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},
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}
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}
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