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Quelle  urbi.py   Sprache: Python

 
"""
    pygments.lexers.urbi
    ~~~~~~~~~~~~~~~~~~~~

    Lexers for UrbiScript language.

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

import re

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

__all__ = ['UrbiscriptLexer']


class UrbiscriptLexer(ExtendedRegexLexer):
    """
    For UrbiScript source code.
    """

    name = 'UrbiScript'
    aliases = ['urbiscript']
    filenames = ['*.u']
    mimetypes = ['application/x-urbiscript']
    url = 'https://github.com/urbiforge/urbi'
    version_added = '1.5'

    flags = re.DOTALL

    # TODO
    # - handle Experimental and deprecated tags with specific tokens
    # - handle Angles and Durations with specific tokens

    def blob_callback(lexer, match, ctx):
        text_before_blob = match.group(1)
        blob_start = match.group(2)
        blob_size_str = match.group(3)
        blob_size = int(blob_size_str)
        yield match.start(), String, text_before_blob
        ctx.pos += len(text_before_blob)

        # if blob size doesn't match blob format (example : "\B(2)(aaa)")
        # yield blob as a string
        if ctx.text[match.end() + blob_size] != ")":
            result = "\\B(" + blob_size_str + ")("
            yield match.start(), String, result
            ctx.pos += len(result)
            return

        # if blob is well formatted, yield as Escape
        blob_text = blob_start + ctx.text[match.end():match.end()+blob_size] + ")"
        yield match.start(), String.Escape, blob_text
        ctx.pos = match.end() + blob_size + 1  # +1 is the ending ")"

    tokens = {
        'root': [
            (r'\s+', Text),
            # comments
            (r'//.*?\n', Comment),
            (r'/\*', Comment.Multiline, 'comment'),
            (r'(every|for|loop|while)(?:;|&|\||,)', Keyword),
            (words((
                'assert''at''break''case''catch''closure''compl',
                'continue''default''else''enum''every''external',
                'finally''for''freezeif''if''new''onleave''return',
                'stopif''switch''this''throw''timeout''try',
                'waituntil''whenever''while'), suffix=r'\b'),
             Keyword),
            (words((
                'asm''auto''bool''char''const_cast''delete''double',
                'dynamic_cast''explicit''export''extern''float''friend',
                'goto''inline''int''long''mutable''namespace''register',
                'reinterpret_cast''short''signed''sizeof''static_cast',
                'struct''template''typedef''typeid''typename''union',
                'unsigned''using''virtual''volatile''wchar_t'), suffix=r'\b'),
             Keyword.Reserved),
            # deprecated keywords, use a meaningful token when available
            (r'(emit|foreach|internal|loopn|static)\b', Keyword),
            # ignored keywords, use a meaningful token when available
            (r'(private|protected|public)\b', Keyword),
            (r'(var|do|const|function|class)\b', Keyword.Declaration),
            (r'(true|false|nil|void)\b', Keyword.Constant),
            (words((
                'Barrier''Binary''Boolean''CallMessage''Channel''Code',
                'Comparable''Container''Control''Date''Dictionary''Directory',
                'Duration''Enumeration''Event''Exception''Executable''File',
                'Finalizable''Float''FormatInfo''Formatter''Global''Group',
                'Hash''InputStream''IoService''Job''Kernel''Lazy''List',
                'Loadable''Lobby''Location''Logger''Math''Mutex''nil',
                'Object''Orderable''OutputStream''Pair''Path''Pattern',
                'Position''Primitive''Process''Profile''PseudoLazy''PubSub',
                'RangeIterable''Regexp''Semaphore''Server''Singleton''Socket',
                'StackFrame''Stream''String''System''Tag''Timeout',
                'Traceable''TrajectoryGenerator''Triplet''Tuple''UObject',
                'UValue''UVar'), suffix=r'\b'),
             Name.Builtin),
            (r'(?:this)\b', Name.Builtin.Pseudo),
            # don't match single | and &
            (r'(?:[-=+*%/<>~^:]+|\.&?|\|\||&&)', Operator),
            (r'(?:and_eq|and|bitand|bitor|in|not|not_eq|or_eq|or|xor_eq|xor)\b',
             Operator.Word),
            (r'[{}\[\]()]+', Punctuation),
            (r'(?:;|\||,|&|\?|!)+', Punctuation),
            (r'[$a-zA-Z_]\w*', Name.Other),
            (r'0x[0-9a-fA-F]+', Number.Hex),
            # Float, Integer, Angle and Duration
            (r'(?:[0-9]+(?:(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?)?'
             r'((?:rad|deg|grad)|(?:ms|s|min|h|d))?)\b', Number.Float),
            # handle binary blob in strings
            (r'"', String.Double, "string.double"),
            (r"'", String.Single, "string.single"),
        ],
        'string.double': [
            (r'((?:\\\\|\\"|[^"])*?)(\\B\((\d+)\)\()', blob_callback),
            (r'(\\\\|\\[^\\]|[^"\\])*?"', String.Double, '#pop'),
        ],
        'string.single': [
            (r"((?:\\\\|\\'|[^'])*?)(\\B\((\d+)\)\()", blob_callback),
            (r"(\\\\|\\[^\\]|[^'\\])*?'", String.Single, '#pop'),
        ],
        # from http://pygments.org/docs/lexerdevelopment/#changing-states
        'comment': [
            (r'[^*/]', Comment.Multiline),
            (r'/\*', Comment.Multiline, '#push'),
            (r'\*/', Comment.Multiline, '#pop'),
            (r'[*/]', Comment.Multiline),
        ]
    }

    def analyse_text(text):
        """This is fairly similar to C and others, but freezeif and
        waituntil are unique keywords."""
        result = 0

        if 'freezeif' in text:
            result += 0.05

        if 'waituntil' in text:
            result += 0.05

        return result

Messung V0.5
C=80 H=93 G=86

¤ Dauer der Verarbeitung: 0.16 Sekunden  (vorverarbeitet)  ¤

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