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riscv-gcc-1
Commit 236d76c4 by Tim Shen Committed by Tim Shen
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re PR libstdc++/67361 (std::regex_error::what() should say something about the error_code) 

	PR libstdc++/67361
	* include/bits/regex_error.h: Add __throw_regex_error that
	supports string.
	* include/bits/regex_automaton.h: Add more specific exception
	messages.
	* include/bits/regex_automaton.tcc: Likewise.
	* include/bits/regex_compiler.h: Likewise.
	* include/bits/regex_compiler.tcc: Likewise.
	* include/bits/regex_scanner.h: Likewise.
	* include/bits/regex_scanner.tcc: Likewise.

From-SVN: r227936
parent b8b71bc0
Showing with 110 additions and 35 deletions
libstdc++-v3/ChangeLog
2015-09-19 Tim Shen <timshen@google.com>
PR libstdc++/67361
* include/bits/regex_error.h: Add __throw_regex_error that
supports string.
* include/bits/regex_automaton.h: Add more specific exception
messages.
* include/bits/regex_automaton.tcc: Likewise.
* include/bits/regex_compiler.h: Likewise.
* include/bits/regex_compiler.tcc: Likewise.
* include/bits/regex_scanner.h: Likewise.
* include/bits/regex_scanner.tcc: Likewise.
2015-09-18 Jonathan Wakely <jwakely@redhat.com> 2015-09-18 Jonathan Wakely <jwakely@redhat.com>
* include/precompiled/extc++.h: Fix bootstrap error due to * include/precompiled/extc++.h: Fix bootstrap error due to
......
libstdc++-v3/include/bits/regex_automaton.h
...@@ -327,7 +327,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -327,7 +327,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ {
this->push_back(std::move(__s)); this->push_back(std::move(__s));
if (this->size() > _GLIBCXX_REGEX_STATE_LIMIT) if (this->size() > _GLIBCXX_REGEX_STATE_LIMIT)
__throw_regex_error(regex_constants::error_space); __throw_regex_error(
regex_constants::error_space,
"Number of NFA states exceeds limit. Please use shorter regex "
"string, or use smaller brace expression, or make "
"_GLIBCXX_REGEX_STATE_LIMIT larger.");
return this->size()-1; return this->size()-1;
} }
......
libstdc++-v3/include/bits/regex_automaton.tcc
...@@ -149,7 +149,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -149,7 +149,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_NFA<_TraitsT>::_M_insert_backref(size_t __index) _NFA<_TraitsT>::_M_insert_backref(size_t __index)
{ {
if (this->_M_flags & regex_constants::__polynomial) if (this->_M_flags & regex_constants::__polynomial)
__throw_regex_error(regex_constants::error_complexity); __throw_regex_error(regex_constants::error_complexity,
"Unexpected back-reference in polynomial mode.");
// To figure out whether a backref is valid, a stack is used to store // To figure out whether a backref is valid, a stack is used to store
// unfinished sub-expressions. For example, when parsing // unfinished sub-expressions. For example, when parsing
// "(a(b)(c\\1(d)))" at '\\1', _M_subexpr_count is 3, indicating that 3 // "(a(b)(c\\1(d)))" at '\\1', _M_subexpr_count is 3, indicating that 3
...@@ -158,10 +159,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -158,10 +159,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// _M_paren_stack is {1, 3}, for incomplete "(a.." and "(c..". At this // _M_paren_stack is {1, 3}, for incomplete "(a.." and "(c..". At this
// time, "\\2" is valid, but "\\1" and "\\3" are not. // time, "\\2" is valid, but "\\1" and "\\3" are not.
if (__index >= _M_subexpr_count) if (__index >= _M_subexpr_count)
__throw_regex_error(regex_constants::error_backref); __throw_regex_error(
regex_constants::error_backref,
"Back-reference index exceeds current sub-expression count.");
for (auto __it : this->_M_paren_stack) for (auto __it : this->_M_paren_stack)
if (__index == __it) if (__index == __it)
__throw_regex_error(regex_constants::error_backref); __throw_regex_error(
regex_constants::error_backref,
"Back-reference referred to an opened sub-expression.");
this->_M_has_backref = true; this->_M_has_backref = true;
_StateT __tmp(_S_opcode_backref); _StateT __tmp(_S_opcode_backref);
__tmp._M_backref_index = __index; __tmp._M_backref_index = __index;
......
libstdc++-v3/include/bits/regex_compiler.h
...@@ -392,7 +392,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -392,7 +392,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
auto __st = _M_traits.lookup_collatename(__s.data(), auto __st = _M_traits.lookup_collatename(__s.data(),
__s.data() + __s.size()); __s.data() + __s.size());
if (__st.empty()) if (__st.empty())
__throw_regex_error(regex_constants::error_collate); __throw_regex_error(regex_constants::error_collate,
"Invalid collate element.");
_M_char_set.push_back(_M_translator._M_translate(__st[0])); _M_char_set.push_back(_M_translator._M_translate(__st[0]));
_GLIBCXX_DEBUG_ONLY(_M_is_ready = false); _GLIBCXX_DEBUG_ONLY(_M_is_ready = false);
return __st; return __st;
...@@ -404,7 +405,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -404,7 +405,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
auto __st = _M_traits.lookup_collatename(__s.data(), auto __st = _M_traits.lookup_collatename(__s.data(),
__s.data() + __s.size()); __s.data() + __s.size());
if (__st.empty()) if (__st.empty())
__throw_regex_error(regex_constants::error_collate); __throw_regex_error(regex_constants::error_collate,
"Invalid equivalence class.");
__st = _M_traits.transform_primary(__st.data(), __st = _M_traits.transform_primary(__st.data(),
__st.data() + __st.size()); __st.data() + __st.size());
_M_equiv_set.push_back(__st); _M_equiv_set.push_back(__st);
...@@ -419,7 +421,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -419,7 +421,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
__s.data() + __s.size(), __s.data() + __s.size(),
__icase); __icase);
if (__mask == 0) if (__mask == 0)
__throw_regex_error(regex_constants::error_ctype); __throw_regex_error(regex_constants::error_collate,
"Invalid character class.");
if (!__neg) if (!__neg)
_M_class_set |= __mask; _M_class_set |= __mask;
else else
...@@ -431,7 +434,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -431,7 +434,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_make_range(_CharT __l, _CharT __r) _M_make_range(_CharT __l, _CharT __r)
{ {
if (__l > __r) if (__l > __r)
__throw_regex_error(regex_constants::error_range); __throw_regex_error(regex_constants::error_range,
"Invalid range in bracket expression.");
_M_range_set.push_back(make_pair(_M_translator._M_transform(__l), _M_range_set.push_back(make_pair(_M_translator._M_transform(__l),
_M_translator._M_transform(__r))); _M_translator._M_transform(__r)));
_GLIBCXX_DEBUG_ONLY(_M_is_ready = false); _GLIBCXX_DEBUG_ONLY(_M_is_ready = false);
......
libstdc++-v3/include/bits/regex_compiler.tcc
...@@ -162,7 +162,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -162,7 +162,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
auto __neg = _M_value[0] == 'n'; auto __neg = _M_value[0] == 'n';
this->_M_disjunction(); this->_M_disjunction();
if (!_M_match_token(_ScannerT::_S_token_subexpr_end)) if (!_M_match_token(_ScannerT::_S_token_subexpr_end))
__throw_regex_error(regex_constants::error_paren); __throw_regex_error(regex_constants::error_paren,
"Parenthesis is not closed.");
auto __tmp = _M_pop(); auto __tmp = _M_pop();
__tmp._M_append(_M_nfa->_M_insert_accept()); __tmp._M_append(_M_nfa->_M_insert_accept());
_M_stack.push( _M_stack.push(
...@@ -184,7 +185,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -184,7 +185,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
auto __init = [this, &__neg]() auto __init = [this, &__neg]()
{ {
if (_M_stack.empty()) if (_M_stack.empty())
__throw_regex_error(regex_constants::error_badrepeat); __throw_regex_error(regex_constants::error_badrepeat,
"Nothing to repeat before a quantifier.");
__neg = __neg && _M_match_token(_ScannerT::_S_token_opt); __neg = __neg && _M_match_token(_ScannerT::_S_token_opt);
}; };
if (_M_match_token(_ScannerT::_S_token_closure0)) if (_M_match_token(_ScannerT::_S_token_closure0))
...@@ -220,9 +222,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -220,9 +222,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
else if (_M_match_token(_ScannerT::_S_token_interval_begin)) else if (_M_match_token(_ScannerT::_S_token_interval_begin))
{ {
if (_M_stack.empty()) if (_M_stack.empty())
__throw_regex_error(regex_constants::error_badrepeat); __throw_regex_error(regex_constants::error_badrepeat,
"Nothing to repeat before a quantifier.");
if (!_M_match_token(_ScannerT::_S_token_dup_count)) if (!_M_match_token(_ScannerT::_S_token_dup_count))
__throw_regex_error(regex_constants::error_badbrace); __throw_regex_error(regex_constants::error_badbrace,
"Unexpected token in brace expression.");
_StateSeqT __r(_M_pop()); _StateSeqT __r(_M_pop());
_StateSeqT __e(*_M_nfa, _M_nfa->_M_insert_dummy()); _StateSeqT __e(*_M_nfa, _M_nfa->_M_insert_dummy());
long __min_rep = _M_cur_int_value(10); long __min_rep = _M_cur_int_value(10);
...@@ -238,7 +242,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -238,7 +242,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
else else
__n = 0; __n = 0;
if (!_M_match_token(_ScannerT::_S_token_interval_end)) if (!_M_match_token(_ScannerT::_S_token_interval_end))
__throw_regex_error(regex_constants::error_brace); __throw_regex_error(regex_constants::error_brace,
"Unexpected end of brace expression.");
__neg = __neg && _M_match_token(_ScannerT::_S_token_opt); __neg = __neg && _M_match_token(_ScannerT::_S_token_opt);
...@@ -257,7 +262,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -257,7 +262,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
else else
{ {
if (__n < 0) if (__n < 0)
__throw_regex_error(regex_constants::error_badbrace); __throw_regex_error(regex_constants::error_badbrace,
"Invalid range in brace expression.");
auto __end = _M_nfa->_M_insert_dummy(); auto __end = _M_nfa->_M_insert_dummy();
// _M_alt is the "match more" branch, and _M_next is the // _M_alt is the "match more" branch, and _M_next is the
// "match less" one. Switch _M_alt and _M_next of all created // "match less" one. Switch _M_alt and _M_next of all created
...@@ -324,7 +330,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -324,7 +330,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_StateSeqT __r(*_M_nfa, _M_nfa->_M_insert_dummy()); _StateSeqT __r(*_M_nfa, _M_nfa->_M_insert_dummy());
this->_M_disjunction(); this->_M_disjunction();
if (!_M_match_token(_ScannerT::_S_token_subexpr_end)) if (!_M_match_token(_ScannerT::_S_token_subexpr_end))
__throw_regex_error(regex_constants::error_paren); __throw_regex_error(regex_constants::error_paren,
"Parenthesis is not closed.");
__r._M_append(_M_pop()); __r._M_append(_M_pop());
_M_stack.push(__r); _M_stack.push(__r);
} }
...@@ -333,7 +340,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -333,7 +340,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_StateSeqT __r(*_M_nfa, _M_nfa->_M_insert_subexpr_begin()); _StateSeqT __r(*_M_nfa, _M_nfa->_M_insert_subexpr_begin());
this->_M_disjunction(); this->_M_disjunction();
if (!_M_match_token(_ScannerT::_S_token_subexpr_end)) if (!_M_match_token(_ScannerT::_S_token_subexpr_end))
__throw_regex_error(regex_constants::error_paren); __throw_regex_error(regex_constants::error_paren,
"Parenthesis is not closed.");
__r._M_append(_M_pop()); __r._M_append(_M_pop());
__r._M_append(_M_nfa->_M_insert_subexpr_end()); __r._M_append(_M_nfa->_M_insert_subexpr_end());
_M_stack.push(__r); _M_stack.push(__r);
...@@ -474,7 +482,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -474,7 +482,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ {
if (_M_match_token(_ScannerT::_S_token_bracket_end)) if (_M_match_token(_ScannerT::_S_token_bracket_end))
return false; return false;
__throw_regex_error(regex_constants::error_range); __throw_regex_error(
regex_constants::error_range,
"Unexpected dash in bracket expression. For POSIX syntax, "
"a dash is not treated literally only when it is at "
"beginning or end.");
} }
__last_char.first = true; __last_char.first = true;
__last_char.second = _M_value[0]; __last_char.second = _M_value[0];
...@@ -492,7 +504,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -492,7 +504,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ {
if (_M_scanner._M_get_token() if (_M_scanner._M_get_token()
!= _ScannerT::_S_token_bracket_end) != _ScannerT::_S_token_bracket_end)
__throw_regex_error(regex_constants::error_range); __throw_regex_error(
regex_constants::error_range,
"Unexpected end of bracket expression.");
__matcher._M_add_char(_M_value[0]); __matcher._M_add_char(_M_value[0]);
} }
} }
...@@ -508,7 +522,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -508,7 +522,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_ctype.is(_CtypeT::upper, _M_ctype.is(_CtypeT::upper,
_M_value[0])); _M_value[0]));
else else
__throw_regex_error(regex_constants::error_brack); __throw_regex_error(regex_constants::error_brack,
"Unexpected character in bracket expression.");
return true; return true;
} }
......
libstdc++-v3/include/bits/regex_error.h
...@@ -155,6 +155,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -155,6 +155,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
regex_constants::error_type regex_constants::error_type
code() const code() const
{ return _M_code; } { return _M_code; }
private:
regex_error(regex_constants::error_type __ecode, const char* __what)
: std::runtime_error(__what), _M_code(__ecode)
{ }
friend void __throw_regex_error(regex_constants::error_type, const char*);
}; };
//@} // group regex //@} // group regex
...@@ -162,5 +169,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -162,5 +169,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
void void
__throw_regex_error(regex_constants::error_type __ecode); __throw_regex_error(regex_constants::error_type __ecode);
inline void
__throw_regex_error(regex_constants::error_type __ecode, const char* __what)
{ _GLIBCXX_THROW_OR_ABORT(regex_error(__ecode, __what)); }
_GLIBCXX_END_NAMESPACE_VERSION _GLIBCXX_END_NAMESPACE_VERSION
} // namespace std } // namespace std
libstdc++-v3/include/bits/regex_scanner.tcc
...@@ -108,7 +108,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -108,7 +108,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
if (__c == '\\') if (__c == '\\')
{ {
if (_M_current == _M_end) if (_M_current == _M_end)
__throw_regex_error(regex_constants::error_escape); __throw_regex_error(
regex_constants::error_escape,
"Unexpected end of regex when escaping.");
if (!_M_is_basic() if (!_M_is_basic()
|| (*_M_current != '(' || (*_M_current != '('
...@@ -125,7 +127,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -125,7 +127,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
if (_M_is_ecma() && *_M_current == '?') if (_M_is_ecma() && *_M_current == '?')
{ {
if (++_M_current == _M_end) if (++_M_current == _M_end)
__throw_regex_error(regex_constants::error_paren); __throw_regex_error(
regex_constants::error_paren,
"Unexpected end of regex when in an open parenthesis.");
if (*_M_current == ':') if (*_M_current == ':')
{ {
...@@ -145,7 +149,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -145,7 +149,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_value.assign(1, 'n'); _M_value.assign(1, 'n');
} }
else else
__throw_regex_error(regex_constants::error_paren); __throw_regex_error(
regex_constants::error_paren,
"Invalid special open parenthesis.");
} }
else if (_M_flags & regex_constants::nosubs) else if (_M_flags & regex_constants::nosubs)
_M_token = _S_token_subexpr_no_group_begin; _M_token = _S_token_subexpr_no_group_begin;
...@@ -204,14 +210,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -204,14 +210,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_scan_in_bracket() _M_scan_in_bracket()
{ {
if (_M_current == _M_end) if (_M_current == _M_end)
__throw_regex_error(regex_constants::error_brack); __throw_regex_error(
regex_constants::error_brack,
"Unexpected end of regex when in bracket expression.");
auto __c = *_M_current++; auto __c = *_M_current++;
if (__c == '[') if (__c == '[')
{ {
if (_M_current == _M_end) if (_M_current == _M_end)
__throw_regex_error(regex_constants::error_brack); __throw_regex_error(regex_constants::error_brack,
"Unexpected character class open bracket.");
if (*_M_current == '.') if (*_M_current == '.')
{ {
...@@ -261,7 +270,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -261,7 +270,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_scan_in_brace() _M_scan_in_brace()
{ {
if (_M_current == _M_end) if (_M_current == _M_end)
__throw_regex_error(regex_constants::error_brace); __throw_regex_error(
regex_constants::error_brace,
"Unexpected end of regex when in brace expression.");
auto __c = *_M_current++; auto __c = *_M_current++;
...@@ -285,7 +296,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -285,7 +296,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
++_M_current; ++_M_current;
} }
else else
__throw_regex_error(regex_constants::error_badbrace); __throw_regex_error(regex_constants::error_badbrace,
"Unexpected character in brace expression.");
} }
else if (__c == '}') else if (__c == '}')
{ {
...@@ -293,7 +305,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -293,7 +305,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_token = _S_token_interval_end; _M_token = _S_token_interval_end;
} }
else else
__throw_regex_error(regex_constants::error_badbrace); __throw_regex_error(regex_constants::error_badbrace,
"Unexpected character in brace expression.");
} }
template<typename _CharT> template<typename _CharT>
...@@ -302,7 +315,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -302,7 +315,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_eat_escape_ecma() _M_eat_escape_ecma()
{ {
if (_M_current == _M_end) if (_M_current == _M_end)
__throw_regex_error(regex_constants::error_escape); __throw_regex_error(regex_constants::error_escape,
"Unexpected end of regex when escaping.");
auto __c = *_M_current++; auto __c = *_M_current++;
auto __pos = _M_find_escape(_M_ctype.narrow(__c, '\0')); auto __pos = _M_find_escape(_M_ctype.narrow(__c, '\0'));
...@@ -336,7 +350,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -336,7 +350,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
else if (__c == 'c') else if (__c == 'c')
{ {
if (_M_current == _M_end) if (_M_current == _M_end)
__throw_regex_error(regex_constants::error_escape); __throw_regex_error(
regex_constants::error_escape,
"Unexpected end of regex when reading control code.");
_M_token = _S_token_ord_char; _M_token = _S_token_ord_char;
_M_value.assign(1, *_M_current++); _M_value.assign(1, *_M_current++);
} }
...@@ -347,7 +363,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -347,7 +363,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ {
if (_M_current == _M_end if (_M_current == _M_end
|| !_M_ctype.is(_CtypeT::xdigit, *_M_current)) || !_M_ctype.is(_CtypeT::xdigit, *_M_current))
__throw_regex_error(regex_constants::error_escape); __throw_regex_error(
regex_constants::error_escape,
"Unexpected end of regex when ascii character.");
_M_value += *_M_current++; _M_value += *_M_current++;
} }
_M_token = _S_token_hex_num; _M_token = _S_token_hex_num;
...@@ -376,7 +394,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -376,7 +394,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_eat_escape_posix() _M_eat_escape_posix()
{ {
if (_M_current == _M_end) if (_M_current == _M_end)
__throw_regex_error(regex_constants::error_escape); __throw_regex_error(regex_constants::error_escape,
"Unexpected end of regex when escaping.");
auto __c = *_M_current; auto __c = *_M_current;
auto __pos = std::strchr(_M_spec_char, _M_ctype.narrow(__c, '\0')); auto __pos = std::strchr(_M_spec_char, _M_ctype.narrow(__c, '\0'));
...@@ -401,7 +420,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -401,7 +420,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ {
#ifdef __STRICT_ANSI__ #ifdef __STRICT_ANSI__
// POSIX says it is undefined to escape ordinary characters // POSIX says it is undefined to escape ordinary characters
__throw_regex_error(regex_constants::error_escape); __throw_regex_error(regex_constants::error_escape,
"Unexpected escape character.");
#else #else
_M_token = _S_token_ord_char; _M_token = _S_token_ord_char;
_M_value.assign(1, __c); _M_value.assign(1, __c);
...@@ -441,7 +461,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -441,7 +461,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
return; return;
} }
else else
__throw_regex_error(regex_constants::error_escape); __throw_regex_error(regex_constants::error_escape,
"Unexpected escape character.");
} }
// Eats a character class or throws an exception. // Eats a character class or throws an exception.
...@@ -460,9 +481,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION ...@@ -460,9 +481,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
|| *_M_current++ != ']') // skip ']' || *_M_current++ != ']') // skip ']'
{ {
if (__ch == ':') if (__ch == ':')
__throw_regex_error(regex_constants::error_ctype); __throw_regex_error(regex_constants::error_ctype,
"Unexpected end of character class.");
else else
__throw_regex_error(regex_constants::error_collate); __throw_regex_error(regex_constants::error_collate,
"Unexpected end of character class.");
} }
} }
......
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