cheat/vendor/github.com/alecthomas/chroma/lexers/b/bnf.go

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