filter.py

"""
    pygments.filter
    ~~~~~~~~~~~~~~~

Module that implements the default filter.

:copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

def apply_filters(stream, filters, lexer=None):
    """
    Use this method to apply an iterable of filters to
    a stream. If lexer is given it's forwarded to the
    filter, otherwise the filter receives `None`.
    """
    def _apply(filter_, stream):
        yield from filter_.filter(lexer, stream)
    for filter_ in filters:
        stream = _apply(filter_, stream)
    return stream

def simplefilter(f):
    """
    Decorator that converts a function into a filter::

@simplefilter
        def lowercase(self, lexer, stream, options):
            for ttype, value in stream:
                yield ttype, value.lower()
    """
    return type(f.__name__, (FunctionFilter,), {
        '__module__': getattr(f, '__module__'),
        '__doc__': f.__doc__,
        'function': f,
    })

class Filter:
    """
    Default filter. Subclass this class or use the `simplefilter`
    decorator to create own filters.
    """

def __init__(self, **options):
        self.options = options

def filter(self, lexer, stream):
        raise NotImplementedError()

class FunctionFilter(Filter):
    """
    Abstract class used by `simplefilter` to create simple
    function filters on the fly. The `simplefilter` decorator
    automatically creates subclasses of this class for
    functions passed to it.
    """
    function = None

def __init__(self, **options):
        if not hasattr(self, 'function'):
            raise TypeError('%r used without bound function' %
                            self.__class__.__name__)
        Filter.__init__(self, **options)

def filter(self, lexer, stream):
        # pylint: disable=not-callable
        yield from self.function(lexer, stream, self.options)

docroot: /home/induvedam/public_html

curdir: /opt/alt/python313/lib/python3.13/site-packages/pip/_vendor/pygments

	.	4096
	..	4096
X	__init__.py	2983
X	__main__.py	353
	__pycache__	4096
X	cmdline.py	23685
X	console.py	1697
X	filter.py	1938
	filters	44
X	formatter.py	4178
	formatters	4096
X	lexer.py	34618
	lexers	80
X	modeline.py	986
X	plugin.py	2591
X	regexopt.py	3072
X	scanner.py	3092
X	sphinxext.py	6882
X	style.py	6257
	styles	44
X	token.py	6184
X	unistring.py	63223
X	util.py	10230