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XPath: Improve error message for expressions like .[1]

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W3C specification does not allow predicates after abbreviated steps.
Currently this results in parsing terminating at the step, which leads
to confusing error messages like "Invalid query" or "Unmatched braces".
This commit is contained in:
Arseny Kapoulkine 2017-01-30 08:54:09 -08:00
parent bc1e444694
commit 1ed6d2102b
1 changed files with 6 additions and 0 deletions
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6
src/pugixml.cpp
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@ -11398,12 +11398,18 @@ PUGI__NS_BEGIN
{
_lexer.next();
if (_lexer.current() == lex_open_square_brace)
return error("Predicates are not allowed after an abbreviated step");
return alloc_node(ast_step, set, axis_self, nodetest_type_node, 0);
}
else if (_lexer.current() == lex_double_dot)
{
_lexer.next();
if (_lexer.current() == lex_open_square_brace)
return error("Predicates are not allowed after an abbreviated step");
return alloc_node(ast_step, set, axis_parent, nodetest_type_node, 0);
}