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98 lines
3.2 KiB
98 lines
3.2 KiB
2 years ago
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"""
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pygments.lexers.berry
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~~~~~~~~~~~~~~~~~~~~~
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Lexer for Berry.
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:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexer import RegexLexer, words, default, include, bygroups
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from pygments.token import Text, Comment, Whitespace, Operator, Keyword, Name, String, Number, Punctuation
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__all__ = ['BerryLexer']
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line_re = re.compile('.*?\n')
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class BerryLexer(RegexLexer):
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"""
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For `berry <http://github.com/berry-lang/berry>`_ source code.
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.. versionadded:: 2.12.0
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"""
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name = 'Berry'
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aliases = ['berry', 'be']
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filenames = ['*.be']
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mimetypes = ['text/x-berry', 'application/x-berry']
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_name = r'\b[^\W\d]\w*'
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tokens = {
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'root': [
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include('whitespace'),
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include('numbers'),
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include('keywords'),
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(rf'(def)(\s+)({_name})', bygroups(Keyword.Declaration, Whitespace, Name.Function)),
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(rf'\b(class)(\s+)({_name})', bygroups(Keyword.Declaration, Whitespace, Name.Class)),
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(rf'\b(import)(\s+)({_name})', bygroups(Keyword.Namespace, Whitespace, Name.Namespace)),
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include('expr')
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],
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'expr': [
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(r'[^\S\n]+', Whitespace),
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(r'\.\.|[~!%^&*+=|?:<>/-]', Operator),
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(r'[(){}\[\],.;]', Punctuation),
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include('controls'),
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include('builtins'),
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include('funccall'),
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include('member'),
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include('name'),
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include('strings')
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],
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'whitespace': [
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(r'\s+', Whitespace),
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(r'#-(.|\n)*?-#', Comment.Multiline),
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(r'#.*?$', Comment.Single)
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],
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'keywords': [
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(words((
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'as', 'break', 'continue', 'import', 'static', 'self', 'super'),
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suffix=r'\b'), Keyword.Reserved),
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(r'(true|false|nil)\b', Keyword.Constant),
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(r'(var|def)\b', Keyword.Declaration)
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],
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'controls': [
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(words((
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'if', 'elif', 'else', 'for', 'while', 'do', 'end', 'break',
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'continue', 'return', 'try', 'except', 'raise'),
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suffix=r'\b'), Keyword)
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],
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'builtins': [
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(words((
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'assert', 'bool', 'input', 'classname', 'classof', 'number', 'real',
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'bytes', 'compile', 'map', 'list', 'int', 'isinstance', 'print',
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'range', 'str', 'super', 'module', 'size', 'issubclass', 'open',
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'file', 'type', 'call'),
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suffix=r'\b'), Name.Builtin)
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],
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'numbers': [
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(r'0[xX][a-fA-F0-9]+', Number.Hex),
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(r'-?\d+', Number.Integer),
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(r'(-?\d+\.?|\.\d)\d*([eE][+-]?\d+)?', Number.Float)
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],
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'name': [
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(_name, Name)
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],
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'funccall': [
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(rf'{_name}(?=\s*\()', Name.Function, '#pop')
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],
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'member': [
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(rf'(?<=\.){_name}\b(?!\()', Name.Attribute, '#pop')
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],
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'strings': [
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(r'"([^\\]|\\.)*?"', String.Double, '#pop'),
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(r'\'([^\\]|\\.)*?\'', String.Single, '#pop')
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]
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}
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