package lexers import ( "embed" "io/fs" "github.com/alecthomas/chroma/v2" ) //go:embed embedded var embedded embed.FS // GlobalLexerRegistry is the global LexerRegistry of Lexers. var GlobalLexerRegistry = func() *chroma.LexerRegistry { reg := chroma.NewLexerRegistry() // index(reg) paths, err := fs.Glob(embedded, "embedded/*.xml") if err != nil { panic(err) } for _, path := range paths { reg.Register(chroma.MustNewXMLLexer(embedded, path)) } return reg }() // Names of all lexers, optionally including aliases. func Names(withAliases bool) []string { return GlobalLexerRegistry.Names(withAliases) } // Get a Lexer by name, alias or file extension. func Get(name string) chroma.Lexer { return GlobalLexerRegistry.Get(name) } // MatchMimeType attempts to find a lexer for the given MIME type. func MatchMimeType(mimeType string) chroma.Lexer { return GlobalLexerRegistry.MatchMimeType(mimeType) } // Match returns the first lexer matching filename. func Match(filename string) chroma.Lexer { return GlobalLexerRegistry.Match(filename) } // Register a Lexer with the global registry. func Register(lexer chroma.Lexer) chroma.Lexer { return GlobalLexerRegistry.Register(lexer) } // Analyse text content and return the "best" lexer.. func Analyse(text string) chroma.Lexer { return GlobalLexerRegistry.Analyse(text) } // PlaintextRules is used for the fallback lexer as well as the explicit // plaintext lexer. func PlaintextRules() chroma.Rules { return chroma.Rules{ "root": []chroma.Rule{ {`.+`, chroma.Text, nil}, {`\n`, chroma.Text, nil}, }, } } // Fallback lexer if no other is found. var Fallback chroma.Lexer = chroma.MustNewLexer(&chroma.Config{ Name: "fallback", Filenames: []string{"*"}, Priority: -1, }, PlaintextRules)