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* gnu/packages/patches/python-sgmllib3k-assertions.patch: New file. * gnu/local.mk: Register it. * gnu/packages/python-xyz.scm (python-sgmllib3k): Use it.
221 lines
8.7 KiB
Diff
221 lines
8.7 KiB
Diff
Restores compatibility with Python >=3.9,
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which removed the custom .error() method in
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https://github.com/python/cpython/commit/e34bbfd61f405eef89e8aa50672b0b25022de320
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Despite the big diff, only a try…except clause is added.
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--- source/sgmllib.py 2023-03-18 08:57:58.726240606 +0100
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+++ source/sgmllib.py 2023-03-18 09:02:01.667568916 +0100
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@@ -101,113 +101,116 @@
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"""Handle the remaining data."""
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self.goahead(1)
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- def error(self, message):
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- raise SGMLParseError(message)
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-
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# Internal -- handle data as far as reasonable. May leave state
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# and data to be processed by a subsequent call. If 'end' is
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# true, force handling all data as if followed by EOF marker.
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def goahead(self, end):
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- rawdata = self.rawdata
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- i = 0
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- n = len(rawdata)
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- while i < n:
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- if self.nomoretags:
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- self.handle_data(rawdata[i:n])
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- i = n
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- break
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- match = interesting.search(rawdata, i)
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- if match: j = match.start()
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- else: j = n
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- if i < j:
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- self.handle_data(rawdata[i:j])
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- i = j
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- if i == n: break
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- if rawdata[i] == '<':
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- if starttagopen.match(rawdata, i):
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+ try:
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+ rawdata = self.rawdata
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+ i = 0
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+ n = len(rawdata)
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+ while i < n:
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+ if self.nomoretags:
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+ self.handle_data(rawdata[i:n])
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+ i = n
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+ break
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+ match = interesting.search(rawdata, i)
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+ if match: j = match.start()
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+ else: j = n
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+ if i < j:
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+ self.handle_data(rawdata[i:j])
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+ i = j
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+ if i == n: break
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+ if rawdata[i] == '<':
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+ if starttagopen.match(rawdata, i):
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+ if self.literal:
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+ self.handle_data(rawdata[i])
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+ i = i+1
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+ continue
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+ k = self.parse_starttag(i)
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+ if k < 0: break
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+ i = k
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+ continue
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+ if rawdata.startswith("</", i):
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+ k = self.parse_endtag(i)
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+ if k < 0: break
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+ i = k
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+ self.literal = 0
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+ continue
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+ if self.literal:
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+ if n > (i + 1):
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+ self.handle_data("<")
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+ i = i+1
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+ else:
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+ # incomplete
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+ break
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+ continue
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+ if rawdata.startswith("<!--", i):
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+ # Strictly speaking, a comment is --.*--
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+ # within a declaration tag <!...>.
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+ # This should be removed,
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+ # and comments handled only in parse_declaration.
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+ k = self.parse_comment(i)
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+ if k < 0: break
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+ i = k
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+ continue
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+ if rawdata.startswith("<?", i):
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+ k = self.parse_pi(i)
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+ if k < 0: break
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+ i = i+k
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+ continue
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+ if rawdata.startswith("<!", i):
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+ # This is some sort of declaration; in "HTML as
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+ # deployed," this should only be the document type
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+ # declaration ("<!DOCTYPE html...>").
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+ k = self.parse_declaration(i)
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+ if k < 0: break
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+ i = k
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+ continue
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+ elif rawdata[i] == '&':
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if self.literal:
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self.handle_data(rawdata[i])
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i = i+1
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continue
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- k = self.parse_starttag(i)
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- if k < 0: break
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- i = k
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- continue
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- if rawdata.startswith("</", i):
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- k = self.parse_endtag(i)
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- if k < 0: break
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- i = k
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- self.literal = 0
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- continue
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- if self.literal:
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- if n > (i + 1):
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- self.handle_data("<")
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- i = i+1
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- else:
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- # incomplete
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- break
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- continue
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- if rawdata.startswith("<!--", i):
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- # Strictly speaking, a comment is --.*--
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- # within a declaration tag <!...>.
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- # This should be removed,
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- # and comments handled only in parse_declaration.
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- k = self.parse_comment(i)
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- if k < 0: break
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- i = k
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- continue
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- if rawdata.startswith("<?", i):
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- k = self.parse_pi(i)
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- if k < 0: break
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- i = i+k
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- continue
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- if rawdata.startswith("<!", i):
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- # This is some sort of declaration; in "HTML as
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- # deployed," this should only be the document type
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- # declaration ("<!DOCTYPE html...>").
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- k = self.parse_declaration(i)
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- if k < 0: break
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- i = k
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- continue
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- elif rawdata[i] == '&':
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- if self.literal:
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+ match = charref.match(rawdata, i)
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+ if match:
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+ name = match.group(1)
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+ self.handle_charref(name)
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+ i = match.end(0)
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+ if rawdata[i-1] != ';': i = i-1
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+ continue
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+ match = entityref.match(rawdata, i)
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+ if match:
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+ name = match.group(1)
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+ self.handle_entityref(name)
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+ i = match.end(0)
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+ if rawdata[i-1] != ';': i = i-1
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+ continue
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+ else:
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+ self.error('neither < nor & ??')
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+ # We get here only if incomplete matches but
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+ # nothing else
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+ match = incomplete.match(rawdata, i)
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+ if not match:
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self.handle_data(rawdata[i])
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i = i+1
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continue
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- match = charref.match(rawdata, i)
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- if match:
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- name = match.group(1)
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- self.handle_charref(name)
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- i = match.end(0)
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- if rawdata[i-1] != ';': i = i-1
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- continue
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- match = entityref.match(rawdata, i)
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- if match:
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- name = match.group(1)
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- self.handle_entityref(name)
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- i = match.end(0)
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- if rawdata[i-1] != ';': i = i-1
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- continue
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- else:
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- self.error('neither < nor & ??')
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- # We get here only if incomplete matches but
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- # nothing else
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- match = incomplete.match(rawdata, i)
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- if not match:
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- self.handle_data(rawdata[i])
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- i = i+1
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- continue
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- j = match.end(0)
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- if j == n:
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- break # Really incomplete
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- self.handle_data(rawdata[i:j])
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- i = j
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- # end while
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- if end and i < n:
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- self.handle_data(rawdata[i:n])
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- i = n
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- self.rawdata = rawdata[i:]
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- # XXX if end: check for empty stack
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+ j = match.end(0)
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+ if j == n:
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+ break # Really incomplete
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+ self.handle_data(rawdata[i:j])
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+ i = j
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+ # end while
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+ if end and i < n:
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+ self.handle_data(rawdata[i:n])
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+ i = n
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+ self.rawdata = rawdata[i:]
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+ # XXX if end: check for empty stack
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+ except AssertionError as e:
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+ # The .error() method, which threw the custom SGMLParseError was removed
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+ # by https://github.com/python/cpython/issues/76025. So we have to catch
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+ # _markupbase’s AssertionError and translate it into the old one.
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+ raise SGMLParseError (e.args[0]) from e
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# Extensions for the DOCTYPE scanner:
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_decl_otherchars = '='
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