Quelle solidity.py Sprache: Python

"""
    pygments.lexers.solidity
    ~~~~~~~~~~~~~~~~~~~~~~~~

    Lexers for Solidity.

    :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

from pygments.lexer import RegexLexer, bygroups, include, words
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
    Number, Punctuation, Whitespace

__all__ = ['SolidityLexer']

class SolidityLexer(RegexLexer):
    """
    For Solidity source code.
    """

    name = 'Solidity'
    aliases = ['solidity']
    filenames = ['*.sol']
    mimetypes = []
    url = 'https://soliditylang.org'
    version_added = '2.5'

    datatype = (
        r'\b(address|bool|(?:(?:bytes|hash|int|string|uint)(?:8|16|24|32|40|48|56|64'
        r'|72|80|88|96|104|112|120|128|136|144|152|160|168|176|184|192|200|208'
        r'|216|224|232|240|248|256)?))\b'
    )

    tokens = {
        'root': [
            include('whitespace'),
            include('comments'),
            (r'\bpragma\s+solidity\b', Keyword, 'pragma'),
            (r'\b(contract)(\s+)([a-zA-Z_]\w*)',
             bygroups(Keyword, Whitespace, Name.Entity)),
            (datatype + r'(\s+)((?:external|public|internal|private)\s+)?' +
             r'([a-zA-Z_]\w*)',
             bygroups(Keyword.Type, Whitespace, Keyword, Name.Variable)),
            (r'\b(enum|event|function|struct)(\s+)([a-zA-Z_]\w*)',
             bygroups(Keyword.Type, Whitespace, Name.Variable)),
            (r'\b(msg|block|tx)\.([A-Za-z_][a-zA-Z0-9_]*)\b', Keyword),
            (words((
                'block', 'break', 'constant', 'constructor', 'continue',
                'contract', 'do', 'else', 'external', 'false', 'for',
                'function', 'if', 'import', 'inherited', 'internal', 'is',
                'library', 'mapping', 'memory', 'modifier', 'msg', 'new',
                'payable', 'private', 'public', 'require', 'return',
                'returns', 'struct', 'suicide', 'throw', 'this', 'true',
                'tx', 'var', 'while'), prefix=r'\b', suffix=r'\b'),
             Keyword.Type),
            (words(('keccak256',), prefix=r'\b', suffix=r'\b'), Name.Builtin),
            (datatype, Keyword.Type),
            include('constants'),
            (r'[a-zA-Z_]\w*', Text),
            (r'[~!%^&*+=|?:<>/-]', Operator),
            (r'[.;{}(),\[\]]', Punctuation)
        ],
        'comments': [
            (r'//(\n|[\w\W]*?[^\\]\n)', Comment.Single),
            (r'/(\\\n)?[*][\w\W]*?[*](\\\n)?/', Comment.Multiline),
            (r'/(\\\n)?[*][\w\W]*', Comment.Multiline)
        ],
        'constants': [
            (r'("(\\"|.)*?")', String.Double),
            (r"('(\\'|.)*?')", String.Single),
            (r'\b0[xX][0-9a-fA-F]+\b', Number.Hex),
            (r'\b\d+\b', Number.Decimal),
        ],
        'pragma': [
            include('whitespace'),
            include('comments'),
            (r'(\^|>=|<)(\s*)(\d+\.\d+\.\d+)',
             bygroups(Operator, Whitespace, Keyword)),
            (r';', Punctuation, '#pop')
        ],
        'whitespace': [
            (r'\s+', Whitespace),
            (r'\n', Whitespace)
        ]
    }

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