File: bnf.go

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golang-github-alecthomas-chroma 0.6.3%2Breally0.6.2-1
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package b

import (
	. "github.com/alecthomas/chroma" // nolint
	"github.com/alecthomas/chroma/lexers/internal"
)

// Bnf lexer.
var Bnf = internal.Register(MustNewLexer(
	&Config{
		Name:      "BNF",
		Aliases:   []string{"bnf"},
		Filenames: []string{"*.bnf"},
		MimeTypes: []string{"text/x-bnf"},
	},
	Rules{
		"root": {
			{`(<)([ -;=?-~]+)(>)`, ByGroups(Punctuation, NameClass, Punctuation), nil},
			{`::=`, Operator, nil},
			{`[^<>:]+`, Text, nil},
			{`.`, Text, nil},
		},
	},
))