forked from boostorg/regex
124 lines
2.4 KiB
C++
124 lines
2.4 KiB
C++
/*
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*
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* Copyright (c) 1998-2002
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* John Maddock
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*
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* Use, modification and distribution are subject to the
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* Boost Software License, Version 1.0. (See accompanying file
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* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*
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*/
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/*
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* LOCATION: see http://www.boost.org for most recent version.
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* FILE regex_cstring.hpp
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* VERSION see <boost/version.hpp>
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* DESCRIPTION: This is an internal header file, do not include directly.
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* String support and helper functions, for regular
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* expression library.
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*/
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#ifndef BOOST_REGEX_CSTRING_HPP
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#define BOOST_REGEX_CSTRING_HPP
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#ifndef BOOST_REGEX_CONFIG_HPP
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#include <boost/regex/config.hpp>
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#endif
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#include <cstring>
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namespace boost{
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namespace re_detail{
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//
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// start by defining some template function aliases for C API functions:
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//
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template <class charT>
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std::size_t BOOST_REGEX_CALL re_strlen(const charT *s)
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{
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std::size_t len = 0;
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while(*s)
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{
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++s;
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++len;
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}
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return len;
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}
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inline std::size_t BOOST_REGEX_CALL re_strlen(const char *s)
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{
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return std::strlen(s);
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}
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#ifndef BOOST_NO_WREGEX
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inline std::size_t BOOST_REGEX_CALL re_strlen(const wchar_t *s)
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{
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return std::wcslen(s);
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}
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#endif
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#ifndef BOOST_NO_WREGEX
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BOOST_REGEX_DECL void BOOST_REGEX_CALL re_transform(std::basic_string<wchar_t>& out, const std::basic_string<wchar_t>& in);
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#endif
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BOOST_REGEX_DECL void BOOST_REGEX_CALL re_transform(std::string& out, const std::string& in);
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template <class charT>
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void BOOST_REGEX_CALL re_trunc_primary(std::basic_string<charT>& s)
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{
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for(unsigned int i = 0; i < s.size(); ++i)
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{
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if(s[i] <= 1)
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{
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s.erase(i);
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break;
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}
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}
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}
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inline char* BOOST_REGEX_CALL re_strcpy(char *s1, const char *s2)
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{
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#if defined(__BORLANDC__) && defined(strcpy)
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return ::strcpy(s1, s2);
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#else
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return std::strcpy(s1, s2);
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#endif
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}
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#ifndef BOOST_NO_WREGEX
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inline wchar_t* BOOST_REGEX_CALL re_strcpy(wchar_t *s1, const wchar_t *s2)
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{
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return std::wcscpy(s1, s2);
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}
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#endif
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template <class charT>
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charT* BOOST_REGEX_CALL re_strdup(const charT* p)
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{
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charT* buf = new charT[re_strlen(p) + 1];
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re_strcpy(buf, p);
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return buf;
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}
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template <class charT>
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inline void BOOST_REGEX_CALL re_strfree(charT* p)
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{
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delete[] p;
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}
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} // namespace re_detail
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} // namespace boost
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#endif // BOOST_REGEX_CSTRING_HPP
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