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- package d
-
- import (
- . "github.com/alecthomas/chroma" // nolint
- "github.com/alecthomas/chroma/lexers/internal"
- )
-
- // Dart lexer.
- var Dart = internal.Register(MustNewLexer(
- &Config{
- Name: "Dart",
- Aliases: []string{"dart"},
- Filenames: []string{"*.dart"},
- MimeTypes: []string{"text/x-dart"},
- DotAll: true,
- },
- Rules{
- "root": {
- Include("string_literal"),
- {`#!(.*?)$`, CommentPreproc, nil},
- {`\b(import|export)\b`, Keyword, Push("import_decl")},
- {`\b(library|source|part of|part)\b`, Keyword, nil},
- {`[^\S\n]+`, Text, nil},
- {`//.*?\n`, CommentSingle, nil},
- {`/\*.*?\*/`, CommentMultiline, nil},
- {`\b(class)\b(\s+)`, ByGroups(KeywordDeclaration, Text), Push("class")},
- {`\b(assert|break|case|catch|continue|default|do|else|finally|for|if|in|is|new|return|super|switch|this|throw|try|while)\b`, Keyword, nil},
- {`\b(abstract|async|await|const|extends|factory|final|get|implements|native|operator|set|static|sync|typedef|var|with|yield)\b`, KeywordDeclaration, nil},
- {`\b(bool|double|dynamic|int|num|Object|String|void)\b`, KeywordType, nil},
- {`\b(false|null|true)\b`, KeywordConstant, nil},
- {`[~!%^&*+=|?:<>/-]|as\b`, Operator, nil},
- {`[a-zA-Z_$]\w*:`, NameLabel, nil},
- {`[a-zA-Z_$]\w*`, Name, nil},
- {`[(){}\[\],.;]`, Punctuation, nil},
- {`0[xX][0-9a-fA-F]+`, LiteralNumberHex, nil},
- {`\d+(\.\d*)?([eE][+-]?\d+)?`, LiteralNumber, nil},
- {`\.\d+([eE][+-]?\d+)?`, LiteralNumber, nil},
- {`\n`, Text, nil},
- },
- "class": {
- {`[a-zA-Z_$]\w*`, NameClass, Pop(1)},
- },
- "import_decl": {
- Include("string_literal"),
- {`\s+`, Text, nil},
- {`\b(as|show|hide)\b`, Keyword, nil},
- {`[a-zA-Z_$]\w*`, Name, nil},
- {`\,`, Punctuation, nil},
- {`\;`, Punctuation, Pop(1)},
- },
- "string_literal": {
- {`r"""([\w\W]*?)"""`, LiteralStringDouble, nil},
- {`r'''([\w\W]*?)'''`, LiteralStringSingle, nil},
- {`r"(.*?)"`, LiteralStringDouble, nil},
- {`r'(.*?)'`, LiteralStringSingle, nil},
- {`"""`, LiteralStringDouble, Push("string_double_multiline")},
- {`'''`, LiteralStringSingle, Push("string_single_multiline")},
- {`"`, LiteralStringDouble, Push("string_double")},
- {`'`, LiteralStringSingle, Push("string_single")},
- },
- "string_common": {
- {`\\(x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|u\{[0-9A-Fa-f]*\}|[a-z'\"$\\])`, LiteralStringEscape, nil},
- {`(\$)([a-zA-Z_]\w*)`, ByGroups(LiteralStringInterpol, Name), nil},
- {`(\$\{)(.*?)(\})`, ByGroups(LiteralStringInterpol, UsingSelf("root"), LiteralStringInterpol), nil},
- },
- "string_double": {
- {`"`, LiteralStringDouble, Pop(1)},
- {`[^"$\\\n]+`, LiteralStringDouble, nil},
- Include("string_common"),
- {`\$+`, LiteralStringDouble, nil},
- },
- "string_double_multiline": {
- {`"""`, LiteralStringDouble, Pop(1)},
- {`[^"$\\]+`, LiteralStringDouble, nil},
- Include("string_common"),
- {`(\$|\")+`, LiteralStringDouble, nil},
- },
- "string_single": {
- {`'`, LiteralStringSingle, Pop(1)},
- {`[^'$\\\n]+`, LiteralStringSingle, nil},
- Include("string_common"),
- {`\$+`, LiteralStringSingle, nil},
- },
- "string_single_multiline": {
- {`'''`, LiteralStringSingle, Pop(1)},
- {`[^\'$\\]+`, LiteralStringSingle, nil},
- Include("string_common"),
- {`(\$|\')+`, LiteralStringSingle, nil},
- },
- },
- ))
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