forgejo/vendor/github.com/alecthomas/chroma/lexers/e/ebnf.go
6543 86e2789960
Vendor Update (#16121)
* update github.com/PuerkitoBio/goquery

* update github.com/alecthomas/chroma

* update github.com/blevesearch/bleve/v2

* update github.com/caddyserver/certmagic

* update github.com/go-enry/go-enry/v2

* update github.com/go-git/go-billy/v5

* update github.com/go-git/go-git/v5

* update github.com/go-redis/redis/v8

* update github.com/go-testfixtures/testfixtures/v3

* update github.com/jaytaylor/html2text

* update github.com/json-iterator/go

* update github.com/klauspost/compress

* update github.com/markbates/goth

* update github.com/mattn/go-isatty

* update github.com/mholt/archiver/v3

* update github.com/microcosm-cc/bluemonday

* update github.com/minio/minio-go/v7

* update github.com/prometheus/client_golang

* update github.com/unrolled/render

* update github.com/xanzy/go-gitlab

* update github.com/yuin/goldmark

* update github.com/yuin/goldmark-highlighting

Co-authored-by: techknowlogick <techknowlogick@gitea.io>
2021-06-10 16:44:25 +02:00

55 lines
1.2 KiB
Go
Vendored

package e
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// Ebnf lexer.
var Ebnf = internal.Register(MustNewLazyLexer(
&Config{
Name: "EBNF",
Aliases: []string{"ebnf"},
Filenames: []string{"*.ebnf"},
MimeTypes: []string{"text/x-ebnf"},
},
ebnfRules,
))
func ebnfRules() Rules {
return Rules{
"root": {
Include("whitespace"),
Include("comment_start"),
Include("identifier"),
{`=`, Operator, Push("production")},
},
"production": {
Include("whitespace"),
Include("comment_start"),
Include("identifier"),
{`"[^"]*"`, LiteralStringDouble, nil},
{`'[^']*'`, LiteralStringSingle, nil},
{`(\?[^?]*\?)`, NameEntity, nil},
{`[\[\]{}(),|]`, Punctuation, nil},
{`-`, Operator, nil},
{`;`, Punctuation, Pop(1)},
{`\.`, Punctuation, Pop(1)},
},
"whitespace": {
{`\s+`, Text, nil},
},
"comment_start": {
{`\(\*`, CommentMultiline, Push("comment")},
},
"comment": {
{`[^*)]`, CommentMultiline, nil},
Include("comment_start"),
{`\*\)`, CommentMultiline, Pop(1)},
{`[*)]`, CommentMultiline, nil},
},
"identifier": {
{`([a-zA-Z][\w \-]*)`, Keyword, nil},
},
}
}