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Quelle  tcl.py

  Sprache: Python
 

"""
    pygments.lexers.tcl
    ~~~~~~~~~~~~~~~~~~~

    Lexers for Tcl and related languages.

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

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

__all__ = ['TclLexer']


class TclLexer(RegexLexer):
    """
    For Tcl source code.
    """

    keyword_cmds_re = words((
        'after''apply''array''break''catch''continue''elseif',
        'else''error''eval''expr''for''foreach''global''if',
        'namespace''proc''rename''return''set''switch''then',
        'trace''unset''update''uplevel''upvar''variable''vwait',
        'while'), prefix=r'\b', suffix=r'\b')

    builtin_cmds_re = words((
        'append''bgerror''binary''cd''chan''clock''close',
        'concat''dde''dict''encoding''eof''exec''exit''fblocked',
        'fconfigure''fcopy''file''fileevent''flush''format''gets',
        'glob''history''http''incr''info''interp''join''lappend',
        'lassign''lindex''linsert''list''llength''load''loadTk',
        'lrange''lrepeat''lreplace''lreverse''lsearch''lset''lsort',
        'mathfunc''mathop''memory''msgcat''open''package''pid',
        'pkg::create''pkg_mkIndex''platform''platform::shell''puts',
        'pwd''re_syntax''read''refchan''regexp''registry''regsub',
        'scan''seek''socket''source''split''string''subst''tell',
        'time''tm''unknown''unload'), prefix=r'\b', suffix=r'\b')

    name = 'Tcl'
    url = 'https://www.tcl.tk/about/language.html'
    aliases = ['tcl']
    filenames = ['*.tcl''*.rvt']
    mimetypes = ['text/x-tcl''text/x-script.tcl''application/x-tcl']
    version_added = '0.10'

    def _gen_command_rules(keyword_cmds_re, builtin_cmds_re, context=""):
        return [
            (keyword_cmds_re, Keyword, 'params' + context),
            (builtin_cmds_re, Name.Builtin, 'params' + context),
            (r'([\w.-]+)', Name.Variable, 'params' + context),
            (r'#', Comment, 'comment'),
        ]

    tokens = {
        'root': [
            include('command'),
            include('basic'),
            include('data'),
            (r'\}', Keyword),  # HACK: somehow we miscounted our braces
        ],
        'command': _gen_command_rules(keyword_cmds_re, builtin_cmds_re),
        'command-in-brace': _gen_command_rules(keyword_cmds_re,
                                               builtin_cmds_re,
                                               "-in-brace"),
        'command-in-bracket': _gen_command_rules(keyword_cmds_re,
                                                 builtin_cmds_re,
                                                 "-in-bracket"),
        'command-in-paren': _gen_command_rules(keyword_cmds_re,
                                               builtin_cmds_re,
                                               "-in-paren"),
        'basic': [
            (r'\(', Keyword, 'paren'),
            (r'\[', Keyword, 'bracket'),
            (r'\{', Keyword, 'brace'),
            (r'"', String.Double, 'string'),
            (r'(eq|ne|in|ni)\b', Operator.Word),
            (r'!=|==|<<|>>|<=|>=|&&|\|\||\*\*|[-+~!*/%<>&^|?:]', Operator),
        ],
        'data': [
            (r'\s+', Whitespace),
            (r'0x[a-fA-F0-9]+', Number.Hex),
            (r'0[0-7]+', Number.Oct),
            (r'\d+\.\d+', Number.Float),
            (r'\d+', Number.Integer),
            (r'\$[\w.:-]+', Name.Variable),
            (r'\$\{[\w.:-]+\}', Name.Variable),
            (r'[\w.,@:-]+', Text),
        ],
        'params': [
            (r';', Keyword, '#pop'),
            (r'\n', Text, '#pop'),
            (r'(else|elseif|then)\b', Keyword),
            include('basic'),
            include('data'),
        ],
        'params-in-brace': [
            (r'\}', Keyword, ('#pop', '#pop')),
            include('params')
        ],
        'params-in-paren': [
            (r'\)', Keyword, ('#pop', '#pop')),
            include('params')
        ],
        'params-in-bracket': [
            (r'\]', Keyword, ('#pop', '#pop')),
            include('params')
        ],
        'string': [
            (r'\[', String.Double, 'string-square'),
            (r'(?s)(\\\\|\\[0-7]+|\\.|[^"\\])', String.Double),
            (r'"', String.Double, '#pop')
        ],
        'string-square': [
            (r'\[', String.Double, 'string-square'),
            (r'(?s)(\\\\|\\[0-7]+|\\.|\\\n|[^\]\\])', String.Double),
            (r'\]', String.Double, '#pop')
        ],
        'brace': [
            (r'\}', Keyword, '#pop'),
            include('command-in-brace'),
            include('basic'),
            include('data'),
        ],
        'paren': [
            (r'\)', Keyword, '#pop'),
            include('command-in-paren'),
            include('basic'),
            include('data'),
        ],
        'bracket': [
            (r'\]', Keyword, '#pop'),
            include('command-in-bracket'),
            include('basic'),
            include('data'),
        ],
        'comment': [
            (r'.*[^\\]\n', Comment, '#pop'),
            (r'.*\\\n', Comment),
        ],
    }

    def analyse_text(text):
        return shebang_matches(text, r'(tcl)')

Messung V0.5 in Prozent
C=87 H=61 G=74

¤ Dauer der Verarbeitung: 0.3 Sekunden  ¤

*© Formatika GbR, Deutschland






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