/usr/lib/python2.7/dist-packages/pygments/lexers/diff.py is in python-pygments 2.1+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | # -*- coding: utf-8 -*-
"""
pygments.lexers.diff
~~~~~~~~~~~~~~~~~~~~
Lexers for diff/patch formats.
:copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from pygments.lexer import RegexLexer, include, bygroups
from pygments.token import Text, Comment, Operator, Keyword, Name, Generic, \
Literal
__all__ = ['DiffLexer', 'DarcsPatchLexer']
class DiffLexer(RegexLexer):
"""
Lexer for unified or context-style diffs or patches.
"""
name = 'Diff'
aliases = ['diff', 'udiff']
filenames = ['*.diff', '*.patch']
mimetypes = ['text/x-diff', 'text/x-patch']
tokens = {
'root': [
(r' .*\n', Text),
(r'\+.*\n', Generic.Inserted),
(r'-.*\n', Generic.Deleted),
(r'!.*\n', Generic.Strong),
(r'@.*\n', Generic.Subheading),
(r'([Ii]ndex|diff).*\n', Generic.Heading),
(r'=.*\n', Generic.Heading),
(r'.*\n', Text),
]
}
def analyse_text(text):
if text[:7] == 'Index: ':
return True
if text[:5] == 'diff ':
return True
if text[:4] == '--- ':
return 0.9
class DarcsPatchLexer(RegexLexer):
"""
DarcsPatchLexer is a lexer for the various versions of the darcs patch
format. Examples of this format are derived by commands such as
``darcs annotate --patch`` and ``darcs send``.
.. versionadded:: 0.10
"""
name = 'Darcs Patch'
aliases = ['dpatch']
filenames = ['*.dpatch', '*.darcspatch']
DPATCH_KEYWORDS = ('hunk', 'addfile', 'adddir', 'rmfile', 'rmdir', 'move',
'replace')
tokens = {
'root': [
(r'<', Operator),
(r'>', Operator),
(r'\{', Operator),
(r'\}', Operator),
(r'(\[)((?:TAG )?)(.*)(\n)(.*)(\*\*)(\d+)(\s?)(\])',
bygroups(Operator, Keyword, Name, Text, Name, Operator,
Literal.Date, Text, Operator)),
(r'(\[)((?:TAG )?)(.*)(\n)(.*)(\*\*)(\d+)(\s?)',
bygroups(Operator, Keyword, Name, Text, Name, Operator,
Literal.Date, Text), 'comment'),
(r'New patches:', Generic.Heading),
(r'Context:', Generic.Heading),
(r'Patch bundle hash:', Generic.Heading),
(r'(\s*)(%s)(.*\n)' % '|'.join(DPATCH_KEYWORDS),
bygroups(Text, Keyword, Text)),
(r'\+', Generic.Inserted, "insert"),
(r'-', Generic.Deleted, "delete"),
(r'.*\n', Text),
],
'comment': [
(r'[^\]].*\n', Comment),
(r'\]', Operator, "#pop"),
],
'specialText': [ # darcs add [_CODE_] special operators for clarity
(r'\n', Text, "#pop"), # line-based
(r'\[_[^_]*_]', Operator),
],
'insert': [
include('specialText'),
(r'\[', Generic.Inserted),
(r'[^\n\[]+', Generic.Inserted),
],
'delete': [
include('specialText'),
(r'\[', Generic.Deleted),
(r'[^\n\[]+', Generic.Deleted),
],
}
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