cheat/vendor/github.com/alecthomas/chroma/lexers/b/brainfuck.go
2019-10-27 12:04:31 -04:00

34 lines
709 B
Go

package b
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// Brainfuck lexer.
var Brainfuck = internal.Register(MustNewLexer(
&Config{
Name: "Brainfuck",
Aliases: []string{"brainfuck", "bf"},
Filenames: []string{"*.bf", "*.b"},
MimeTypes: []string{"application/x-brainfuck"},
},
Rules{
"common": {
{`[.,]+`, NameTag, nil},
{`[+-]+`, NameBuiltin, nil},
{`[<>]+`, NameVariable, nil},
{`[^.,+\-<>\[\]]+`, Comment, nil},
},
"root": {
{`\[`, Keyword, Push("loop")},
{`\]`, Error, nil},
Include("common"),
},
"loop": {
{`\[`, Keyword, Push()},
{`\]`, Keyword, Pop(1)},
Include("common"),
},
},
))