/usr/lib/python2.7/dist-packages/linkcheck/htmlutil/linkname.py is in linkchecker 9.3-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 2001-2014 Bastian Kleineidam
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
Parse names of title tags and link types.
"""
import re
from .. import HtmlParser, strformat
imgtag_re = re.compile(r"(?i)\s+alt\s*=\s*"+\
r"""(?P<name>("[^"\n]*"|'[^'\n]*'|[^\s>]+))""")
img_re = re.compile(r"""(?i)<\s*img\s+("[^"\n]*"|'[^'\n]*'|[^>])+>""")
def endtag_re (tag):
"""Return matcher for given end tag"""
return re.compile(r"(?i)</%s\s*>" % tag)
a_end_search = endtag_re("a").search
title_end_search = endtag_re("title").search
def _unquote (txt):
"""Resolve entities and remove markup from txt."""
return HtmlParser.resolve_entities(strformat.remove_markup(txt))
def image_name (txt):
"""Return the alt part of the first <img alt=""> tag in txt."""
mo = imgtag_re.search(txt)
if mo:
name = strformat.unquote(mo.group('name').strip())
return _unquote(name)
return u''
def href_name (txt):
"""Return the name part of the first <a href="">name</a> link in txt."""
name = u""
endtag = a_end_search(txt)
if not endtag:
return name
name = txt[:endtag.start()]
if img_re.search(name):
return image_name(name)
return _unquote(name)
def title_name (txt):
"""Return the part of the first <title>name</title> in txt."""
name = u""
endtag = title_end_search(txt)
if not endtag:
return name
name = txt[:endtag.start()]
return _unquote(name)
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