"""HTML Parsers
This file is a part of Bookmarks database and Internet robot.
+
"""
-__version__ = "$Revision$"[11:-2]
-__revision__ = "$Id$"[5:-2]
-__date__ = "$Date$"[7:-2]
__author__ = "Oleg Broytman <phd@phdru.name>"
-__copyright__ = "Copyright (C) 1997-2011 PhiloSoft Design"
+__copyright__ = "Copyright (C) 1997-2014 PhiloSoft Design"
__license__ = "GNU GPL"
-import codecs
-
-universal_charset = "utf-8"
-DEFAULT_CHARSET = "cp1251" # Stupid default for Russian Cyrillic
-
-parsers = []
-
-try:
- from . import beautifulsoup
-except ImportError:
- pass
-else:
- beautifulsoup.DEFAULT_CHARSET = DEFAULT_CHARSET
- parsers.append(beautifulsoup.parse_html)
-
-try:
- from .lxml import parse_html
-except ImportError:
- pass
-else:
- parsers.append(parse_html)
-
-try:
- from .htmlparser import parse_html
-except ImportError:
- pass
-else:
- parsers.append(parse_html)
-
-try:
- from . import html5
-except ImportError:
- pass
-else:
- parsers.append(html5.parse_html)
-
-# ElementTidy often segfaults
-#try:
-# from . import etreetidy
-#except ImportError:
-# pass
-#else:
-# parsers.append(etreetidy.parse_html)
-
-import re
-from htmlentitydefs import name2codepoint
-
-entity_re = re.compile("(&\w+;)")
-num_entity_re = re.compile("(&#[0-9]+;)")
-
-def recode_entities(title, charset):
- output = []
- for part in entity_re.split(title):
- if part not in ("&", "<", ">", """) and \
- entity_re.match(part):
- _part = name2codepoint.get(part[1:-1], None)
- if _part is not None:
- part = unichr(_part).encode(charset)
- output.append(part)
- title = ''.join(output)
-
- output = []
- for part in num_entity_re.split(title):
- if num_entity_re.match(part):
- try:
- part = unichr(int(part[2:-1])).encode(charset)
- except UnicodeEncodeError:
- pass # Leave the entity as is
- output.append(part)
-
- return ''.join(output)
-
-
-def parse_html(filename, charset=None, log=None):
- if not parsers:
- return None
-
- if charset:
- try:
- codecs.lookup(charset) # In case of unknown charset...
- except (ValueError, LookupError):
- charset = None # ...try charset from HTML
-
- charsets = [universal_charset, DEFAULT_CHARSET]
- if charset:
- charset = charset.lower().replace("windows-", "cp")
- if charset in charsets:
- charsets.remove(charset)
- charsets.insert(0, charset)
-
- for p in parsers:
- parser = None
- for c in charsets:
- try:
- parser = p(filename, c, log)
- except UnicodeEncodeError:
- pass
- else:
- break
- if parser:
- break
- else:
- if log: log("Parser %s.%s failed, trying next one." % (p.__module__, p.__name__))
-
- if not parser:
- return None
-
- converted_title = title = parser.title
- if title and (not parser.charset):
- try:
- unicode(title, "ascii")
- except UnicodeDecodeError:
- parser.charset = DEFAULT_CHARSET
-
- if parser.charset:
- parser.charset = parser.charset.lower().replace("windows-", "cp")
-
- if title and parser.charset and (
- (parser.charset <> universal_charset) or
- ((not charset) or (charset <> parser.charset))):
- try:
- if parser.meta_charset:
- if log: log(" META charset : %s" % parser.charset)
- elif (not charset) or (charset <> parser.charset):
- if log: log(" guessed charset: %s" % parser.charset)
- if log: log(" current charset: %s" % universal_charset)
- if log: log(" title : %s" % title)
- if parser.charset <> universal_charset:
- try:
- converted_title = unicode(title, parser.charset).encode(universal_charset)
- except UnicodeError:
- if log: log(" incorrect conversion from %s, converting from %s" % (parser.charset, DEFAULT_CHARSET))
- converted_title = unicode(title, DEFAULT_CHARSET, "replace").encode(universal_charset, "replace")
- parser.charset = DEFAULT_CHARSET
- if log and (converted_title <> title): log(" converted title: %s" % converted_title)
- except LookupError:
- if log: log(" unknown charset: '%s'" % parser.charset)
- else:
- if log: log(" title : %s" % title)
+__all__ = ['parse_html', 'parse_filename', 'main']
- if title:
- final_title = recode_entities(converted_title, universal_charset)
- parts = [s.strip() for s in final_title.replace('\r', '').split('\n')]
- final_title = ' '.join([s for s in parts if s])
- if log and (final_title <> converted_title): log(" final title : %s" % final_title)
- parser.title = final_title
- icon = parser.icon
- if isinstance(icon, unicode):
- try:
- parser.icon = icon.encode('ascii')
- except UnicodeEncodeError:
- if parser.charset:
- parser.icon = icon.encode(parser.charset)
- return parser
+from .bkmk_parse_html import parse_html, parse_filename
-def test():
+def main():
import sys
+ from .bkmk_parse_html import universal_charset
l = len(sys.argv)
if l == 3:
filename = sys.argv[1]
charset = universal_charset
else:
- sys.exit("Usage: %s filename [charset]" % sys.argv[0])
+ sys.exit("Usage: main filename [charset]")
- parser = parse_html(filename, charset, log=lambda s: sys.stdout.write(s + '\n'))
+ parser = parse_filename(filename, charset, log=lambda s: sys.stdout.write(s + '\n'))
print " refresh:", parser.refresh
print " icon :", parser.icon
projects / bookmarks_db.git / blobdiff