Quelle boa.py Sprache: Python

"""
    pygments.lexers.boa
    ~~~~~~~~~~~~~~~~~~~

    Lexers for the Boa language.

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

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

__all__ = ['BoaLexer']

class BoaLexer(RegexLexer):
    """
    Lexer for the Boa language.
    """
    name = 'Boa'
    aliases = ['boa']
    filenames = ['*.boa']
    url = 'https://boa.cs.iastate.edu/docs'
    version_added = '2.4'

    reserved = words(
        ('input', 'output', 'of', 'weight', 'before', 'after', 'stop',
         'ifall', 'foreach', 'exists', 'function', 'break', 'switch', 'case',
         'visitor', 'default', 'return', 'visit', 'while', 'if', 'else'),
        suffix=r'\b', prefix=r'\b')
    keywords = words(
        ('bottom', 'collection', 'maximum', 'mean', 'minimum', 'set', 'sum',
         'top', 'string', 'int', 'bool', 'float', 'time', 'false', 'true',
         'array', 'map', 'stack', 'enum', 'type'), suffix=r'\b', prefix=r'\b')
    classes = words(
        ('Project', 'ForgeKind', 'CodeRepository', 'Revision', 'RepositoryKind',
         'ChangedFile', 'FileKind', 'ASTRoot', 'Namespace', 'Declaration', 'Type',
         'Method', 'Variable', 'Statement', 'Expression', 'Modifier',
         'StatementKind', 'ExpressionKind', 'ModifierKind', 'Visibility',
         'TypeKind', 'Person', 'ChangeKind'),
        suffix=r'\b', prefix=r'\b')
    operators = ('->', ':=', ':', '=', '<<', '!', '++', '||',
                 '&&', '+', '-', '*', ">", "<")
    string_sep = ('`', '\"')
    built_in_functions = words(
        (
            # Array functions
            'new', 'sort',
            # Date & Time functions
            'yearof', 'dayofyear', 'hourof', 'minuteof', 'secondof', 'now',
            'addday', 'addmonth', 'addweek', 'addyear', 'dayofmonth', 'dayofweek',
            'dayofyear', 'formattime', 'trunctoday', 'trunctohour', 'trunctominute',
            'trunctomonth', 'trunctosecond', 'trunctoyear',
            # Map functions
            'clear', 'haskey', 'keys', 'lookup', 'remove', 'values',
            # Math functions
            'abs', 'acos', 'acosh', 'asin', 'asinh', 'atan', 'atan2', 'atanh',
            'ceil', 'cos', 'cosh', 'exp', 'floor', 'highbit', 'isfinite', 'isinf',
            'isnan', 'isnormal', 'log', 'log10', 'max', 'min', 'nrand', 'pow',
            'rand', 'round', 'sin', 'sinh', 'sqrt', 'tan', 'tanh', 'trunc',
            # Other functions
            'def', 'hash', 'len',
            # Set functions
            'add', 'contains', 'remove',
            # String functions
            'format', 'lowercase', 'match', 'matchposns', 'matchstrs', 'regex',
            'split', 'splitall', 'splitn', 'strfind', 'strreplace', 'strrfind',
            'substring', 'trim', 'uppercase',
            # Type Conversion functions
            'bool', 'float', 'int', 'string', 'time',
            # Domain-Specific functions
            'getast', 'getsnapshot', 'hasfiletype', 'isfixingrevision', 'iskind',
            'isliteral',
        ),
        prefix=r'\b',
        suffix=r'\(')

    tokens = {
        'root': [
            (r'#.*?$', Comment.Single),
            (r'/\*.*?\*/', Comment.Multiline),
            (reserved, Keyword.Reserved),
            (built_in_functions, Name.Function),
            (keywords, Keyword.Type),
            (classes, Name.Classes),
            (words(operators), Operator),
            (r'[][(),;{}\\.]', Punctuation),
            (r'"(\\\\|\\[^\\]|[^"\\])*"', String.Double),
            (r"`(\\\\|\\[^\\]|[^`\\])*`", String.Backtick),
            (words(string_sep), String.Delimiter),
            (r'[a-zA-Z_]+', Name.Variable),
            (r'[0-9]+', Number.Integer),
            (r'\s+', Whitespace),  # Whitespace
        ]
    }

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