29 lines
538 B
Go
29 lines
538 B
Go
package b
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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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// Bnf lexer.
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var Bnf = internal.Register(MustNewLazyLexer(
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&Config{
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Name: "BNF",
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Aliases: []string{"bnf"},
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Filenames: []string{"*.bnf"},
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MimeTypes: []string{"text/x-bnf"},
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},
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bnfRules,
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))
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func bnfRules() Rules {
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return Rules{
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"root": {
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{`(<)([ -;=?-~]+)(>)`, ByGroups(Punctuation, NameClass, Punctuation), nil},
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{`::=`, Operator, nil},
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{`[^<>:]+`, Text, nil},
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{`.`, Text, nil},
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},
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}
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}
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