diff options
Diffstat (limited to 'Lib/html/parser.py')
| -rw-r--r-- | Lib/html/parser.py | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/Lib/html/parser.py b/Lib/html/parser.py index d7541ae..22498db 100644 --- a/Lib/html/parser.py +++ b/Lib/html/parser.py @@ -25,16 +25,16 @@ charref = re.compile('&#(?:[0-9]+|[xX][0-9a-fA-F]+)[^0-9a-fA-F]') starttagopen = re.compile('<[a-zA-Z]') piclose = re.compile('>') commentclose = re.compile(r'--\s*>') -tagfind = re.compile('([a-zA-Z][-.a-zA-Z0-9:_]*)(?:\s|/(?!>))*') -# see http://www.w3.org/TR/html5/tokenization.html#tag-open-state -# and http://www.w3.org/TR/html5/tokenization.html#tag-name-state -tagfind_tolerant = re.compile('[a-zA-Z][^\t\n\r\f />\x00]*') # Note: # 1) the strict attrfind isn't really strict, but we can't make it # correctly strict without breaking backward compatibility; -# 2) if you change attrfind remember to update locatestarttagend too; -# 3) if you change attrfind and/or locatestarttagend the parser will +# 2) if you change tagfind/attrfind remember to update locatestarttagend too; +# 3) if you change tagfind/attrfind and/or locatestarttagend the parser will # explode, so don't do it. +tagfind = re.compile('([a-zA-Z][-.a-zA-Z0-9:_]*)(?:\s|/(?!>))*') +# see http://www.w3.org/TR/html5/tokenization.html#tag-open-state +# and http://www.w3.org/TR/html5/tokenization.html#tag-name-state +tagfind_tolerant = re.compile('([a-zA-Z][^\t\n\r\f />\x00]*)(?:\s|/(?!>))*') attrfind = re.compile( r'\s*([a-zA-Z_][-.:a-zA-Z_0-9]*)(\s*=\s*' r'(\'[^\']*\'|"[^"]*"|[^\s"\'=<>`]*))?') @@ -56,7 +56,7 @@ locatestarttagend = re.compile(r""" \s* # trailing whitespace """, re.VERBOSE) locatestarttagend_tolerant = re.compile(r""" - <[a-zA-Z][-.a-zA-Z0-9:_]* # tag name + <[a-zA-Z][^\t\n\r\f />\x00]* # tag name (?:[\s/]* # optional whitespace before attribute name (?:(?<=['"\s/])[^\s/>][^\s/=>]* # attribute name (?:\s*=+\s* # value indicator @@ -336,7 +336,10 @@ class HTMLParser(_markupbase.ParserBase): # Now parse the data between i+1 and j into a tag and attrs attrs = [] - match = tagfind.match(rawdata, i+1) + if self.strict: + match = tagfind.match(rawdata, i+1) + else: + match = tagfind_tolerant.match(rawdata, i+1) assert match, 'unexpected call to parse_starttag()' k = match.end() self.lasttag = tag = match.group(1).lower() @@ -448,7 +451,7 @@ class HTMLParser(_markupbase.ParserBase): return i+3 else: return self.parse_bogus_comment(i) - tagname = namematch.group().lower() + tagname = namematch.group(1).lower() # consume and ignore other stuff between the name and the > # Note: this is not 100% correct, since we might have things like # </tag attr=">">, but looking for > after tha name should cover |