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- package d
-
- import (
- . "github.com/alecthomas/chroma" // nolint
- "github.com/alecthomas/chroma/lexers/internal"
- )
-
- // D lexer. https://dlang.org/spec/lex.html
- var D = internal.Register(MustNewLexer(
- &Config{
- Name: "D",
- Aliases: []string{"d"},
- Filenames: []string{"*.d", "*.di"},
- MimeTypes: []string{"text/x-d"},
- EnsureNL: true,
- },
- Rules{
- "root": {
- {`[^\S\n]+`, Text, nil},
-
- // https://dlang.org/spec/lex.html#comment
- {`//.*?\n`, CommentSingle, nil},
- {`/\*.*?\*/`, CommentMultiline, nil},
- {`/\+.*?\+/`, CommentMultiline, nil},
-
- // https://dlang.org/spec/lex.html#keywords
- {`(asm|assert|body|break|case|cast|catch|continue|default|debug|delete|deprecated|do|else|finally|for|foreach|foreach_reverse|goto|if|in|invariant|is|macro|mixin|new|out|pragma|return|super|switch|this|throw|try|version|while|with)\b`, Keyword, nil},
- {`__(FILE|FILE_FULL_PATH|MODULE|LINE|FUNCTION|PRETTY_FUNCTION|DATE|EOF|TIME|TIMESTAMP|VENDOR|VERSION)__\b`, NameBuiltin, nil},
- {`__(traits|vector|parameters)\b`, NameBuiltin, nil},
- {`((?:(?:[^\W\d]|\$)[\w.\[\]$<>]*\s+)+?)((?:[^\W\d]|\$)[\w$]*)(\s*)(\()`, ByGroups(UsingSelf("root"), NameFunction, Text, Operator), nil},
-
- // https://dlang.org/spec/attribute.html#uda
- {`@[\w.]*`, NameDecorator, nil},
- {`(abstract|auto|alias|align|const|delegate|enum|export|final|function|inout|lazy|nothrow|override|package|private|protected|public|pure|static|synchronized|template|volatile|__gshared)\b`, KeywordDeclaration, nil},
-
- // https://dlang.org/spec/type.html#basic-data-types
- {`(void|bool|byte|ubyte|short|ushort|int|uint|long|ulong|cent|ucent|float|double|real|ifloat|idouble|ireal|cfloat|cdouble|creal|char|wchar|dchar|string|wstring|dstring)\b`, KeywordType, nil},
- {`(module)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
- {`(true|false|null)\b`, KeywordConstant, nil},
- {`(class|interface|struct|template|union)(\s+)`, ByGroups(KeywordDeclaration, Text), Push("class")},
- {`(import)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
-
- // https://dlang.org/spec/lex.html#string_literals
- // TODO support delimited strings
- {`[qr]?"(\\\\|\\"|[^"])*"[cwd]?`, LiteralString, nil},
- {"(`)([^`]*)(`)[cwd]?", LiteralString, nil},
- {`'\\.'|'[^\\]'|'\\u[0-9a-fA-F]{4}'`, LiteralStringChar, nil},
- {`(\.)((?:[^\W\d]|\$)[\w$]*)`, ByGroups(Operator, NameAttribute), nil},
- {`^\s*([^\W\d]|\$)[\w$]*:`, NameLabel, nil},
-
- // https://dlang.org/spec/lex.html#floatliteral
- {`([0-9][0-9_]*\.([0-9][0-9_]*)?|\.[0-9][0-9_]*)([eE][+\-]?[0-9][0-9_]*)?[fFL]?i?|[0-9][eE][+\-]?[0-9][0-9_]*[fFL]?|[0-9]([eE][+\-]?[0-9][0-9_]*)?[fFL]|0[xX]([0-9a-fA-F][0-9a-fA-F_]*\.?|([0-9a-fA-F][0-9a-fA-F_]*)?\.[0-9a-fA-F][0-9a-fA-F_]*)[pP][+\-]?[0-9][0-9_]*[fFL]?`, LiteralNumberFloat, nil},
- // https://dlang.org/spec/lex.html#integerliteral
- {`0[xX][0-9a-fA-F][0-9a-fA-F_]*[lL]?`, LiteralNumberHex, nil},
- {`0[bB][01][01_]*[lL]?`, LiteralNumberBin, nil},
- {`0[0-7_]+[lL]?`, LiteralNumberOct, nil},
- {`0|[1-9][0-9_]*[lL]?`, LiteralNumberInteger, nil},
- {`([~^*!%&\[\](){}<>|+=:;,./?-]|q{)`, Operator, nil},
- {`([^\W\d]|\$)[\w$]*`, Name, nil},
- {`\n`, Text, nil},
- },
- "class": {
- {`([^\W\d]|\$)[\w$]*`, NameClass, Pop(1)},
- },
- "import": {
- {`[\w.]+\*?`, NameNamespace, Pop(1)},
- },
- },
- ))
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