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parser: Pop PEs that start markup declarations explicitly

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We currently only handle "Validity constraint: Proper Declaration/PE
Nesting", but we must detect "Well-formedness constraint: PE Between
Declarations" separately:

> The replacement text of a parameter entity reference in a DeclSep must
> match the production extSubsetDecl.

PEs in DeclSeps are PEs that start with a full markup declaration (or
another PE). These are handled in xmParse{Internal|External}Subset. We
set a flag on these PEs and don't close them implicitly in
xmlSkipBlankCharsPE. This will make unterminated declarations in such
PEs cause a parser error. The PEs are closed explicitly in
xmParse{Internal|External}Subset, the only location where they are
allowed to end.
This commit is contained in:
Nick Wellnhofer
2025-05-20 19:40:06 +02:00
parent 2a60ca06c0
commit 2f3655c9c3
9 changed files with 148 additions and 73 deletions
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9
python/tests/reader2.py
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@@ -47,14 +47,17 @@ value
^
""".format(dir_prefix),
'cond_sect2':
"""{0}/dtds/cond_sect2.dtd:15: parser error : All markup of the conditional section is not in the same entity
"""{0}/dtds/cond_sect2.dtd:15: parser error : Parameter entity must match extSubsetDecl
%ent;
^
Entity: line 1:
]]>
^
{0}/dtds/cond_sect2.dtd:17: parser error : Content error in the external subset
{0}/dtds/cond_sect2.dtd:15: parser error : Content error in the external subset
%ent;
^
Entity: line 1:
]]>
^
""".format(dir_prefix),
'rss':