FM / pygments

/usr/lib/python2.6/site-packages/pygments/

/usr/lib/python2.6/site-packages/pygments

Name	Size	Mode	Actions
filters/	-	0755	rm
formatters/	-	0755	rm
lexers/	-	0755	rm
styles/	-	0755	rm
cmdline.py	13055	0644	edit dl rm
cmdline.pyc	10443	0644	edit dl rm
cmdline.pyo	10443	0644	edit dl rm
console.py	1850	0644	edit dl rm
console.pyc	2340	0644	edit dl rm
console.pyo	2340	0644	edit dl rm
filter.py	2071	0644	edit dl rm
filter.pyc	3184	0644	edit dl rm
filter.pyo	3184	0644	edit dl rm
formatter.py	2790	0644	edit dl rm
formatter.pyc	3344	0644	edit dl rm
formatter.pyo	3344	0644	edit dl rm
lexer.py	22625	0644	edit dl rm
lexer.pyc	20971	0644	edit dl rm
lexer.pyo	20204	0644	edit dl rm
plugin.py	1862	0644	edit dl rm
plugin.pyc	2373	0644	edit dl rm
plugin.pyo	2373	0644	edit dl rm
scanner.py	3114	0644	edit dl rm
scanner.pyc	4174	0644	edit dl rm
scanner.pyo	4174	0644	edit dl rm
style.py	3745	0644	edit dl rm
style.pyc	3943	0644	edit dl rm
style.pyo	3867	0644	edit dl rm
token.py	5784	0644	edit dl rm
token.pyc	5408	0644	edit dl rm
token.pyo	5408	0644	edit dl rm
unistring.py	404249	0644	edit dl rm
unistring.pyc	208515	0644	edit dl rm
unistring.pyo	208515	0644	edit dl rm
util.py	6577	0644	edit dl rm
util.pyc	7797	0644	edit dl rm
util.pyo	7797	0644	edit dl rm
__init__.py	2935	0644	edit dl rm
__init__.pyc	3334	0644	edit dl rm
__init__.pyo	3334	0644	edit dl rm

Edit: /usr/lib/python2.6/site-packages/pygments/scanner.py (3114B)

# -*- coding: utf-8 -*-
"""
    pygments.scanner
    ~~~~~~~~~~~~~~~~

This library implements a regex based scanner. Some languages
    like Pascal are easy to parse but have some keywords that
    depend on the context. Because of this it's impossible to lex
    that just by using a regular expression lexer like the
    `RegexLexer`.

Have a look at the `DelphiLexer` to get an idea of how to use
    this scanner.

:copyright: Copyright 2006-2009 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""
import re

class EndOfText(RuntimeError):
    """
    Raise if end of text is reached and the user
    tried to call a match function.
    """

class Scanner(object):
    """
    Simple scanner

All method patterns are regular expression strings (not
    compiled expressions!)
    """

def __init__(self, text, flags=0):
        """
        :param text:    The text which should be scanned
        :param flags:   default regular expression flags
        """
        self.data = text
        self.data_length = len(text)
        self.start_pos = 0
        self.pos = 0
        self.flags = flags
        self.last = None
        self.match = None
        self._re_cache = {}

def eos(self):
        """`True` if the scanner reached the end of text."""
        return self.pos >= self.data_length
    eos = property(eos, eos.__doc__)

def check(self, pattern):
        """
        Apply `pattern` on the current position and return
        the match object. (Doesn't touch pos). Use this for
        lookahead.
        """
        if self.eos:
            raise EndOfText()
        if pattern not in self._re_cache:
            self._re_cache[pattern] = re.compile(pattern, self.flags)
        return self._re_cache[pattern].match(self.data, self.pos)

def test(self, pattern):
        """Apply a pattern on the current position and check
        if it patches. Doesn't touch pos."""
        return self.check(pattern) is not None

def scan(self, pattern):
        """
        Scan the text for the given pattern and update pos/match
        and related fields. The return value is a boolen that
        indicates if the pattern matched. The matched value is
        stored on the instance as ``match``, the last value is
        stored as ``last``. ``start_pos`` is the position of the
        pointer before the pattern was matched, ``pos`` is the
        end position.
        """
        if self.eos:
            raise EndOfText()
        if pattern not in self._re_cache:
            self._re_cache[pattern] = re.compile(pattern, self.flags)
        self.last = self.match
        m = self._re_cache[pattern].match(self.data, self.pos)
        if m is None:
            return False
        self.start_pos = m.start()
        self.pos = m.end()
        self.match = m.group()
        return True

def get_char(self):
        """Scan exactly one char."""
        self.scan('.')

def __repr__(self):
        return '<%s %d/%d>' % (
            self.__class__.__name__,
            self.pos,
            self.data_length
        )

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