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HTMLParser is allowed to be more strict than sgmllib, so let's not

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change their basic behavior:  When parsing something that cannot possibly
be valid in either HTML or XHTML, raise an exception.
This commit is contained in:
Fred Drake 2001-09-04 16:26:03 +00:00
parent a0ca3d611e
commit 7cf613dc77
2 changed files with 17 additions and 37 deletions
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47
Lib/HTMLParser.py
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@ -269,17 +269,18 @@ class HTMLParser:
return -1
# in practice, this should look like: ((name|stringlit) S*)+ '>'
n = len(rawdata)
decltype = None
extrachars = ""
decltype, j = self.scan_name(j, i)
if j < 0:
return j
if decltype.lower() != "doctype":
raise HTMLParseError("unknown declaration: '%s'" % decltype,
self.getpos())
while j < n:
c = rawdata[j]
if c == ">":
# end of declaration syntax
data = rawdata[i+2:j]
if decltype == "doctype":
self.handle_decl(data)
else:
self.unknown_decl(data)
self.handle_decl(data)
return j + 1
if c in "\"'":
m = declstringlit.match(rawdata, j)
@ -287,30 +288,15 @@ class HTMLParser:
return -1 # incomplete
j = m.end()
elif c in "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ":
m = declname.match(rawdata, j)
if not m:
return -1 # incomplete
j = m.end()
if decltype is None:
decltype = m.group(0).rstrip().lower()
if decltype != "doctype":
extrachars = "="
name, j = self.scan_name(j, i)
elif c == "[" and decltype == "doctype":
j = self.parse_doctype_subset(j + 1, i)
if j < 0:
return j
elif c in extrachars:
j = j + 1
while j < n and rawdata[j] in string.whitespace:
j = j + 1
if j == n:
# end of buffer while in declaration
return -1
else:
raise HTMLParseError(
"unexpected char in declaration: %s" % `rawdata[j]`,
self.getpos())
decltype = decltype or ''
if j < 0:
return j
return -1 # incomplete
# Internal -- scan past the internal subset in a <!DOCTYPE declaration,
@ -359,11 +345,9 @@ class HTMLParser:
if (j + 1) == n:
# end of buffer; incomplete
return -1
m = declname.match(rawdata, j + 1)
s = m.group()
if s == rawdata[j+1:]:
return -1
j = j + 1 + len(s.rstrip())
s, j = self.scan_name(j + 1, declstartpos)
if j < 0:
return j
if rawdata[j] == ";":
j = j + 1
elif c == "]":
@ -383,8 +367,9 @@ class HTMLParser:
j = j + 1
else:
self.updatepos(declstartpos, j)
raise HTMLParseError("unexpected char in internal subset",
self.getpos())
raise HTMLParseError(
"unexpected char %s in internal subset" % `c`,
self.getpos())
# end of buffer reached
return -1