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Diffstat (limited to '3rdParty/Boost/boost/regex/v4/regex_grep.hpp')
| -rw-r--r-- | 3rdParty/Boost/boost/regex/v4/regex_grep.hpp | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/regex/v4/regex_grep.hpp b/3rdParty/Boost/boost/regex/v4/regex_grep.hpp new file mode 100644 index 0000000..3a3d906 --- /dev/null +++ b/3rdParty/Boost/boost/regex/v4/regex_grep.hpp @@ -0,0 +1,155 @@ +/* + * + * 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_grep.hpp + * VERSION see <boost/version.hpp> + * DESCRIPTION: Provides regex_grep implementation. + */ + +#ifndef BOOST_REGEX_V4_REGEX_GREP_HPP +#define BOOST_REGEX_V4_REGEX_GREP_HPP + + +namespace boost{ + +#ifdef BOOST_MSVC +#pragma warning(push) +#pragma warning(disable: 4103) +#endif +#ifdef BOOST_HAS_ABI_HEADERS +# include BOOST_ABI_PREFIX +#endif +#ifdef BOOST_MSVC +#pragma warning(pop) +#endif + +// +// regex_grep: +// find all non-overlapping matches within the sequence first last: +// +template <class Predicate, class BidiIterator, class charT, class traits> +inline unsigned int regex_grep(Predicate foo, + BidiIterator first, + BidiIterator last, + const basic_regex<charT, traits>& e, + match_flag_type flags = match_default) +{ + if(e.flags() & regex_constants::failbit) + return false; + + typedef typename match_results<BidiIterator>::allocator_type match_allocator_type; + + match_results<BidiIterator> m; + re_detail::perl_matcher<BidiIterator, match_allocator_type, traits> matcher(first, last, m, e, flags, first); + unsigned int count = 0; + while(matcher.find()) + { + ++count; + if(0 == foo(m)) + return count; // caller doesn't want to go on + if(m[0].second == last) + return count; // we've reached the end, don't try and find an extra null match. + if(m.length() == 0) + { + if(m[0].second == last) + return count; + // we found a NULL-match, now try to find + // a non-NULL one at the same position: + match_results<BidiIterator, match_allocator_type> m2(m); + matcher.setf(match_not_null | match_continuous); + if(matcher.find()) + { + ++count; + if(0 == foo(m)) + return count; + } + else + { + // reset match back to where it was: + m = m2; + } + matcher.unsetf((match_not_null | match_continuous) & ~flags); + } + } + return count; +} + +// +// regex_grep convenience interfaces: +#ifndef BOOST_NO_FUNCTION_TEMPLATE_ORDERING +// +// this isn't really a partial specialisation, but template function +// overloading - if the compiler doesn't support partial specialisation +// then it really won't support this either: +template <class Predicate, class charT, class traits> +inline unsigned int regex_grep(Predicate foo, const charT* str, + const basic_regex<charT, traits>& e, + match_flag_type flags = match_default) +{ + return regex_grep(foo, str, str + traits::length(str), e, flags); +} + +template <class Predicate, class ST, class SA, class charT, class traits> +inline unsigned int regex_grep(Predicate foo, const std::basic_string<charT, ST, SA>& s, + const basic_regex<charT, traits>& e, + match_flag_type flags = match_default) +{ + return regex_grep(foo, s.begin(), s.end(), e, flags); +} +#else // partial specialisation +inline unsigned int regex_grep(bool (*foo)(const cmatch&), const char* str, + const regex& e, + match_flag_type flags = match_default) +{ + return regex_grep(foo, str, str + regex::traits_type::length(str), e, flags); +} +#ifndef BOOST_NO_WREGEX +inline unsigned int regex_grep(bool (*foo)(const wcmatch&), const wchar_t* str, + const wregex& e, + match_flag_type flags = match_default) +{ + return regex_grep(foo, str, str + wregex::traits_type::length(str), e, flags); +} +#endif +inline unsigned int regex_grep(bool (*foo)(const match_results<std::string::const_iterator>&), const std::string& s, + const regex& e, + match_flag_type flags = match_default) +{ + return regex_grep(foo, s.begin(), s.end(), e, flags); +} +#if !defined(BOOST_NO_WREGEX) +inline unsigned int regex_grep(bool (*foo)(const match_results<std::basic_string<wchar_t>::const_iterator>&), + const std::basic_string<wchar_t>& s, + const wregex& e, + match_flag_type flags = match_default) +{ + return regex_grep(foo, s.begin(), s.end(), e, flags); +} +#endif +#endif + +#ifdef BOOST_MSVC +#pragma warning(push) +#pragma warning(disable: 4103) +#endif +#ifdef BOOST_HAS_ABI_HEADERS +# include BOOST_ABI_SUFFIX +#endif +#ifdef BOOST_MSVC +#pragma warning(pop) +#endif + +} // namespace boost + +#endif // BOOST_REGEX_V4_REGEX_GREP_HPP + |