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XPath: Reworked variable reference parsing, '$ name' and '$foo:*' are now correctly rejected

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git-svn-id: http://pugixml.googlecode.com/svn/trunk@682 99668b35-9821-0410-8761-19e4c4f06640
This commit is contained in:
arseny.kapoulkine 2010-08-29 15:40:38 +00:00
parent 61ceb10baf
commit 59e034149f
1 changed files with 26 additions and 10 deletions
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36
src/pugixml.cpp
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@ -5946,13 +5946,34 @@ namespace pugi
_cur_lexeme = lex_union;
break;
case '$':
cur += 1;
_cur_lexeme = lex_var_ref;
if (IS_CHARTYPEX(*cur, ctx_start_symbol))
{
_cur_lexeme_contents.begin = cur;
while (IS_CHARTYPEX(*cur, ctx_symbol)) cur++;
if (cur[0] == ':' && IS_CHARTYPEX(cur[1], ctx_symbol)) // qname
{
cur++; // :
while (IS_CHARTYPEX(*cur, ctx_symbol)) cur++;
}
_cur_lexeme_contents.end = cur;
_cur_lexeme = lex_var_ref;
}
else
{
_cur_lexeme = lex_none;
}
break;
case '(':
cur += 1;
_cur_lexeme = lex_open_brace;
@ -6124,7 +6145,7 @@ namespace pugi
const xpath_lexer_string& contents() const
{
assert(_cur_lexeme == lex_number || _cur_lexeme == lex_string || _cur_lexeme == lex_quoted_string);
assert(_cur_lexeme == lex_var_ref || _cur_lexeme == lex_number || _cur_lexeme == lex_string || _cur_lexeme == lex_quoted_string);
return _cur_lexeme_contents;
}
@ -7738,16 +7759,11 @@ namespace pugi
{
case lex_var_ref:
{
_lexer.next();
if (_lexer.current() != lex_string)
throw_error("Variable name expected");
xpath_lexer_string name = _lexer.contents();
if (!_variables)
throw_error("Unknown variable: variable set is not provided");
xpath_lexer_string name = _lexer.contents();
xpath_variable* var = get_variable(_variables, name.begin, name.end);
if (!var)