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96 lines
2.8 KiB
96 lines
2.8 KiB
2 weeks ago
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# -*- coding: utf-8 -*-
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"""
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pygments.formatter
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~~~~~~~~~~~~~~~~~~
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Base formatter class.
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:copyright: Copyright 2006-2019 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import codecs
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from pygments.util import get_bool_opt
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from pygments.styles import get_style_by_name
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__all__ = ['Formatter']
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def _lookup_style(style):
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if isinstance(style, str):
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return get_style_by_name(style)
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return style
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class Formatter:
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"""
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Converts a token stream to text.
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Options accepted:
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``style``
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The style to use, can be a string or a Style subclass
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(default: "default"). Not used by e.g. the
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TerminalFormatter.
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``full``
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Tells the formatter to output a "full" document, i.e.
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a complete self-contained document. This doesn't have
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any effect for some formatters (default: false).
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``title``
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If ``full`` is true, the title that should be used to
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caption the document (default: '').
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``encoding``
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If given, must be an encoding name. This will be used to
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convert the Unicode token strings to byte strings in the
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output. If it is "" or None, Unicode strings will be written
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to the output file, which most file-like objects do not
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support (default: None).
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``outencoding``
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Overrides ``encoding`` if given.
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"""
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#: Name of the formatter
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name = None
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#: Shortcuts for the formatter
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aliases = []
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#: fn match rules
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filenames = []
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#: If True, this formatter outputs Unicode strings when no encoding
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#: option is given.
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unicodeoutput = True
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def __init__(self, **options):
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self.style = _lookup_style(options.get('style', 'default'))
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self.full = get_bool_opt(options, 'full', False)
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self.title = options.get('title', '')
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self.encoding = options.get('encoding', None) or None
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if self.encoding in ('guess', 'chardet'):
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# can happen for e.g. pygmentize -O encoding=guess
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self.encoding = 'utf-8'
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self.encoding = options.get('outencoding') or self.encoding
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self.options = options
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def get_style_defs(self, arg=''):
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"""
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Return the style definitions for the current style as a string.
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``arg`` is an additional argument whose meaning depends on the
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formatter used. Note that ``arg`` can also be a list or tuple
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for some formatters like the html formatter.
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"""
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return ''
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def format(self, tokensource, outfile):
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"""
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Format ``tokensource``, an iterable of ``(tokentype, tokenstring)``
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tuples and write it into ``outfile``.
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"""
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if self.encoding:
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# wrap the outfile in a StreamWriter
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outfile = codecs.lookup(self.encoding)[3](outfile)
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return self.format_unencoded(tokensource, outfile)
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