pygments.filters

Module containing filter lookup functions and default filters.

copyright:Copyright 2006-2013 by the Pygments team, see AUTHORS. license:BSD, see LICENSE for details.

class pygments.filters.CodeTagFilter(**options)

Highlight special code tags in comments and docstrings.

Options accepted:

codetags : list of strings

A list of strings that are flagged as code tags. The default is to highlight XXX, TODO, BUG and NOTE.

class pygments.filters.GobbleFilter(**options)

Gobbles source code lines (eats initial characters).

This filter drops the first n characters off every line of code. This may be useful when the source code fed to the lexer is indented by a fixed amount of space that isn’t desired in the output.

Options accepted:

n : int

The number of characters to gobble.

New in Pygments 1.2.

class pygments.filters.KeywordCaseFilter(**options)

Convert keywords to lowercase or uppercase or capitalize them, which means first letter uppercase, rest lowercase.

This can be useful e.g. if you highlight Pascal code and want to adapt the code to your styleguide.

Options accepted:

case : string

The casing to convert keywords to. Must be one of 'lower', 'upper' or 'capitalize'. The default is 'lower'.

class pygments.filters.NameHighlightFilter(**options)

Highlight a normal Name token with a different token type.

Example:

filter = NameHighlightFilter(
    names=['foo', 'bar', 'baz'],
    tokentype=Name.Function,
)

This would highlight the names “foo”, “bar” and “baz” as functions. Name.Function is the default token type.

Options accepted:

names : list of strings

A list of names that should be given the different token type. There is no default.

tokentype : TokenType or string

A token type or a string containing a token type name that is used for highlighting the strings in names. The default is Name.Function.

class pygments.filters.RaiseOnErrorTokenFilter(**options)

Raise an exception when the lexer generates an error token.

Options accepted:

excclass : Exception class

The exception class to raise. The default is pygments.filters.ErrorToken.

New in Pygments 0.8.

class pygments.filters.TokenMergeFilter(**options)

Merges consecutive tokens with the same token type in the output stream of a lexer.

New in Pygments 1.2.

class pygments.filters.VisibleWhitespaceFilter(**options)

Convert tabs, newlines and/or spaces to visible characters.

Options accepted:

spaces : string or bool

If this is a one-character string, spaces will be replaces by this string. If it is another true value, spaces will be replaced by · (unicode MIDDLE DOT). If it is a false value, spaces will not be replaced. The default is False.

tabs : string or bool

The same as for spaces, but the default replacement character is » (unicode RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK). The default value is False. Note: this will not work if the tabsize option for the lexer is nonzero, as tabs will already have been expanded then.

tabsize : int

If tabs are to be replaced by this filter (see the tabs option), this is the total number of characters that a tab should be expanded to. The default is 8.

newlines : string or bool

The same as for spaces, but the default replacement character is ¶ (unicode PILCROW SIGN). The default value is False.

wstokentype : bool

If true, give whitespace the special Whitespace token type. This allows styling the visible whitespace differently (e.g. greyed out), but it can disrupt background colors. The default is True.

New in Pygments 0.8.

pygments.filters.find_filter_class(filtername)

Lookup a filter by name. Return None if not found.

pygments.filters.get_all_filters()

Return a generator of all filter names.

pygments.filters.get_filter_by_name(filtername, **options)

Return an instantiated filter. Options are passed to the filter initializer if wanted. Raise a ClassNotFound if not found.