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guix/gnu/packages/patches/python-sgmllib3k-assertions...

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This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

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