Files
boost_regex/include/boost/regex/v4/regex_replace.hpp
John Maddock de28eb9b18 1) Disabled recursive implementation for VC8: stack overflows can't be reliably detected unless the whole program is compiled with asynchronous exceptions.
2) Changed std::copy calls on VC8 to avoid "dangerous code" warnings.
3) Moved backreference and octal escape code into line with POSIX-extended requirements.
4) Changed match_results leftmost-longest rules to stop unnecessary std::distance computations (an optimisation for non-random access iterators).
5) Changed C lib calls to use "safe" versions of string API's where available.
6) Added many new POSIX-extended leftmost-longest tests, to verify the above.


[SVN r27880]
2005-03-30 11:38:51 +00:00

109 lines
3.5 KiB
C++

/*
*
* Copyright (c) 1998-2002
* John Maddock
*
* Use, modification and distribution are subject to the
* Boost Software License, Version 1.0. (See accompanying file
* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*
*/
/*
* LOCATION: see http://www.boost.org for most recent version.
* FILE regex_format.hpp
* VERSION see <boost/version.hpp>
* DESCRIPTION: Provides formatting output routines for search and replace
* operations. Note this is an internal header file included
* by regex.hpp, do not include on its own.
*/
#ifndef BOOST_REGEX_V4_REGEX_REPLACE_HPP
#define BOOST_REGEX_V4_REGEX_REPLACE_HPP
namespace boost{
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_PREFIX
#endif
template <class OutputIterator, class BidirectionalIterator, class traits, class charT>
OutputIterator regex_replace(OutputIterator out,
BidirectionalIterator first,
BidirectionalIterator last,
const basic_regex<charT, traits>& e,
const charT* fmt,
match_flag_type flags = match_default)
{
regex_iterator<BidirectionalIterator, charT, traits> i(first, last, e, flags);
regex_iterator<BidirectionalIterator, charT, traits> j;
if(i == j)
{
if(!(flags & regex_constants::format_no_copy))
out = re_detail::copy(first, last, out);
}
else
{
BidirectionalIterator last_m = first;
while(i != j)
{
if(!(flags & regex_constants::format_no_copy))
out = re_detail::copy(i->prefix().first, i->prefix().second, out);
out = i->format(out, fmt, flags, e);
last_m = (*i)[0].second;
if(flags & regex_constants::format_first_only)
break;
++i;
}
if(!(flags & regex_constants::format_no_copy))
out = re_detail::copy(last_m, last, out);
}
return out;
}
template <class OutputIterator, class Iterator, class traits, class charT>
inline OutputIterator regex_replace(OutputIterator out,
Iterator first,
Iterator last,
const basic_regex<charT, traits>& e,
const std::basic_string<charT>& fmt,
match_flag_type flags = match_default)
{
return regex_replace(out, first, last, e, fmt.c_str(), flags);
}
template <class traits, class charT>
std::basic_string<charT> regex_replace(const std::basic_string<charT>& s,
const basic_regex<charT, traits>& e,
const charT* fmt,
match_flag_type flags = match_default)
{
std::basic_string<charT> result;
re_detail::string_out_iterator<std::basic_string<charT> > i(result);
regex_replace(i, s.begin(), s.end(), e, fmt, flags);
return result;
}
template <class traits, class charT>
std::basic_string<charT> regex_replace(const std::basic_string<charT>& s,
const basic_regex<charT, traits>& e,
const std::basic_string<charT>& fmt,
match_flag_type flags = match_default)
{
std::basic_string<charT> result;
re_detail::string_out_iterator<std::basic_string<charT> > i(result);
regex_replace(i, s.begin(), s.end(), e, fmt.c_str(), flags);
return result;
}
#ifdef BOOST_HAS_ABI_HEADERS
# include BOOST_ABI_SUFFIX
#endif
} // namespace boost
#endif // BOOST_REGEX_V4_REGEX_REPLACE_HPP