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124 lines
3.8 KiB
124 lines
3.8 KiB
4 years ago
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"""
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pygments.lexers.zig
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~~~~~~~~~~~~~~~~~~~
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Lexers for Zig.
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:copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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from pygments.lexer import RegexLexer, words
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from pygments.token import Comment, Operator, Keyword, Name, String, \
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Number, Punctuation, Whitespace
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__all__ = ['ZigLexer']
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class ZigLexer(RegexLexer):
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"""
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For `Zig <http://www.ziglang.org>`_ source code.
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grammar: https://ziglang.org/documentation/master/#Grammar
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"""
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name = 'Zig'
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aliases = ['zig']
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filenames = ['*.zig']
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mimetypes = ['text/zig']
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type_keywords = (
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words(('bool', 'f16', 'f32', 'f64', 'f128', 'void', 'noreturn', 'type',
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'anyerror', 'promise', 'i0', 'u0', 'isize', 'usize', 'comptime_int',
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'comptime_float', 'c_short', 'c_ushort', 'c_int', 'c_uint', 'c_long',
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'c_ulong', 'c_longlong', 'c_ulonglong', 'c_longdouble', 'c_void'
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'i8', 'u8', 'i16', 'u16', 'i32', 'u32', 'i64', 'u64', 'i128',
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'u128'), suffix=r'\b'),
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Keyword.Type)
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storage_keywords = (
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words(('const', 'var', 'extern', 'packed', 'export', 'pub', 'noalias',
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'inline', 'comptime', 'nakedcc', 'stdcallcc', 'volatile', 'allowzero',
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'align', 'linksection', 'threadlocal'), suffix=r'\b'),
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Keyword.Reserved)
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structure_keywords = (
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words(('struct', 'enum', 'union', 'error'), suffix=r'\b'),
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Keyword)
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statement_keywords = (
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words(('break', 'return', 'continue', 'asm', 'defer', 'errdefer',
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'unreachable', 'try', 'catch', 'async', 'await', 'suspend',
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'resume', 'cancel'), suffix=r'\b'),
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Keyword)
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conditional_keywords = (
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words(('if', 'else', 'switch', 'and', 'or', 'orelse'), suffix=r'\b'),
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Keyword)
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repeat_keywords = (
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words(('while', 'for'), suffix=r'\b'),
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Keyword)
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other_keywords = (
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words(('fn', 'usingnamespace', 'test'), suffix=r'\b'),
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Keyword)
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constant_keywords = (
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words(('true', 'false', 'null', 'undefined'), suffix=r'\b'),
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Keyword.Constant)
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tokens = {
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'root': [
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(r'\n', Whitespace),
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(r'\s+', Whitespace),
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(r'//.*?\n', Comment.Single),
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# Keywords
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statement_keywords,
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storage_keywords,
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structure_keywords,
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repeat_keywords,
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type_keywords,
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constant_keywords,
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conditional_keywords,
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other_keywords,
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# Floats
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(r'0x[0-9a-fA-F]+\.[0-9a-fA-F]+([pP][\-+]?[0-9a-fA-F]+)?', Number.Float),
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(r'0x[0-9a-fA-F]+\.?[pP][\-+]?[0-9a-fA-F]+', Number.Float),
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(r'[0-9]+\.[0-9]+([eE][-+]?[0-9]+)?', Number.Float),
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(r'[0-9]+\.?[eE][-+]?[0-9]+', Number.Float),
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# Integers
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(r'0b[01]+', Number.Bin),
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(r'0o[0-7]+', Number.Oct),
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(r'0x[0-9a-fA-F]+', Number.Hex),
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(r'[0-9]+', Number.Integer),
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# Identifier
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(r'@[a-zA-Z_]\w*', Name.Builtin),
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(r'[a-zA-Z_]\w*', Name),
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# Characters
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(r'\'\\\'\'', String.Escape),
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(r'\'\\(x[a-fA-F0-9]{2}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{6}|[nr\\t\'"])\'',
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String.Escape),
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(r'\'[^\\\']\'', String),
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# Strings
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(r'\\\\[^\n]*', String.Heredoc),
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(r'c\\\\[^\n]*', String.Heredoc),
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(r'c?"', String, 'string'),
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# Operators, Punctuation
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(r'[+%=><|^!?/\-*&~:]', Operator),
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(r'[{}()\[\],.;]', Punctuation)
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],
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'string': [
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(r'\\(x[a-fA-F0-9]{2}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{6}|[nr\\t\'"])',
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String.Escape),
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(r'[^\\"\n]+', String),
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(r'"', String, '#pop')
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]
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}
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