1 files changed, 0 insertions, 165 deletions
diff --git a/pygments/lexers/diff.py b/pygments/lexers/diff.py
deleted file mode 100644
index 5ff8375c..00000000
--- a/pygments/lexers/diff.py
+++ /dev/null
@@ -1,165 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-    pygments.lexers.diff
-    ~~~~~~~~~~~~~~~~~~~~
-
-    Lexers for diff/patch formats.
-
-    :copyright: Copyright 2006-2019 by the Pygments team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
-"""
-
-import re
-
-from pygments.lexer import RegexLexer, include, bygroups
-from pygments.token import Text, Comment, Operator, Keyword, Name, Generic, \
-    Literal
-
-__all__ = ['DiffLexer', 'DarcsPatchLexer', 'WDiffLexer']
-
-
-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),
-        ],
-    }
-
-
-class WDiffLexer(RegexLexer):
-    """
-    A `wdiff <https://www.gnu.org/software/wdiff/>`_ lexer.
-
-    Note that:
-
-    * only to normal output (without option like -l).
-    * if target files of wdiff contain "[-", "-]", "{+", "+}",
-      especially they are unbalanced, this lexer will get confusing.
-
-    .. versionadded:: 2.2
-    """
-
-    name = 'WDiff'
-    aliases = ['wdiff']
-    filenames = ['*.wdiff']
-    mimetypes = []
-
-    flags = re.MULTILINE | re.DOTALL
-
-    # We can only assume "[-" after "[-" before "-]" is `nested`,
-    # for instance wdiff to wdiff outputs. We have no way to
-    # distinct these marker is of wdiff output from original text.
-
-    ins_op = r"\{\+"
-    ins_cl = r"\+\}"
-    del_op = r"\[\-"
-    del_cl = r"\-\]"
-    normal = r'[^{}[\]+-]+'  # for performance
-    tokens = {
-        'root': [
-            (ins_op, Generic.Inserted, 'inserted'),
-            (del_op, Generic.Deleted, 'deleted'),
-            (normal, Text),
-            (r'.', Text),
-        ],
-        'inserted': [
-            (ins_op, Generic.Inserted, '#push'),
-            (del_op, Generic.Inserted, '#push'),
-            (del_cl, Generic.Inserted, '#pop'),
-
-            (ins_cl, Generic.Inserted, '#pop'),
-            (normal, Generic.Inserted),
-            (r'.', Generic.Inserted),
-        ],
-        'deleted': [
-            (del_op, Generic.Deleted, '#push'),
-            (ins_op, Generic.Deleted, '#push'),
-            (ins_cl, Generic.Deleted, '#pop'),
-
-            (del_cl, Generic.Deleted, '#pop'),
-            (normal, Generic.Deleted),
-            (r'.', Generic.Deleted),
-        ],
-    }