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396 lines
11 KiB
396 lines
11 KiB
/* /////////////////////////////////////////////////////////////////////////
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* File: stlsoft/string/container_slice_functions.hpp
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*
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* Purpose: String container slice functions.
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*
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* Created: 25th April 2005
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* Updated: 12th October 2010
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*
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* Thanks: To Pablo Aguilar for inspiration for these functions.
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*
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* Home: http://stlsoft.org/
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*
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* Copyright (c) 2005-2010, Matthew Wilson and Synesis Software
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of
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* any contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* ////////////////////////////////////////////////////////////////////// */
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/** \file stlsoft/string/container_slice_functions.hpp
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*
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* \brief [C++ only] String container slice functions
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* (\ref group__library__string "String" Library).
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*/
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#ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_CONTAINER_SLICE_FUNCTIONS
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#define STLSOFT_INCL_STLSOFT_STRING_HPP_CONTAINER_SLICE_FUNCTIONS
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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# define STLSOFT_VER_INCL_STLSOFT_STRING_HPP_CONTAINER_SLICE_FUNCTIONS_MAJOR 2
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# define STLSOFT_VER_INCL_STLSOFT_STRING_HPP_CONTAINER_SLICE_FUNCTIONS_MINOR 1
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# define STLSOFT_VER_INCL_STLSOFT_STRING_HPP_CONTAINER_SLICE_FUNCTIONS_REVISION 3
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# define STLSOFT_VER_INCL_STLSOFT_STRING_HPP_CONTAINER_SLICE_FUNCTIONS_EDIT 23
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/* /////////////////////////////////////////////////////////////////////////
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* Compatibility
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*/
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/*
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[Incompatibilies-start]
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STLSOFT_COMPILER_IS_WATCOM:
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[Incompatibilies-end]
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*/
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/* /////////////////////////////////////////////////////////////////////////
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* Includes
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*/
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#ifndef STLSOFT_INCL_STLSOFT_H_STLSOFT
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# include <stlsoft/stlsoft.h>
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#endif /* !STLSOFT_INCL_STLSOFT_H_STLSOFT */
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#ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_STRING_TRAITS
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# include <stlsoft/string/string_traits.hpp>
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#endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_TRAITS */
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#if !defined(STLSOFT_STRING_CONTAINER_SLICE_FNS_STRING_TEMPLATE)
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# if defined(STLSOFT_STRING_CONTAINERS_SLICE_FNS_USE_std_basic_string) || \
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defined(STLSOFT_STRING_CONTAINERS_SLICE_FNS_USE_STD_BASIC_STRING)
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# include <string>
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# else /* ? std::basic_string */
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# ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_SIMPLE_STRING
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# include <stlsoft/string/simple_string.hpp>
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# endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_SIMPLE_STRING */
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# endif /* std::basic_string */
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#endif /* !STLSOFT_STRING_CONTAINER_SLICE_FNS_STRING_TEMPLATE */
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#ifndef STLSOFT_INCL_STLSOFT_UTIL_HPP_MINMAX
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# include <stlsoft/util/minmax.hpp>
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#endif /* !STLSOFT_INCL_STLSOFT_UTIL_HPP_MINMAX */
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#ifndef STLSOFT_INCL_STLSOFT_SHIMS_ACCESS_HPP_STRING
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# include <stlsoft/shims/access/string.hpp>
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#endif /* !STLSOFT_INCL_STLSOFT_SHIMS_ACCESS_HPP_STRING */
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#ifdef STLSOFT_UNITTEST
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# include <string>
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# ifndef STLSOFT_INCL_STLSOFT_STRING_HPP_SIMPLE_STRING
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# include <stlsoft/string/simple_string.hpp>
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# endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_SIMPLE_STRING */
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#if 0
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# if defined(WIN32) && \
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( defined(STLSOFT_COMPILER_IS_INTEL) || \
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defined(STLSOFT_COMPILER_IS_MSVC))
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# include <afx.h>
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# ifndef MFCSTL_INCL_MFCSTL_SHIMS_ACCESS_HPP_STRING
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# include <mfcstl/shims/access/string.hpp>
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# endif /* !MFCSTL_INCL_MFCSTL_SHIMS_ACCESS_HPP_STRING */
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# ifndef MFCSTL_INCL_MFCSTL_HPP_STRING_TRAITS
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# include <mfcstl/string_traits.hpp>
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# endif /* !MFCSTL_INCL_MFCSTL_HPP_STRING_TRAITS */
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# endif /* WIN32 && Intel or MSVC */
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#endif /* 0 */
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#endif /* STLSOFT_UNITTEST */
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/* /////////////////////////////////////////////////////////////////////////
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* Namespace
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*/
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#ifndef _STLSOFT_NO_NAMESPACE
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namespace stlsoft
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{
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#endif /* _STLSOFT_NO_NAMESPACE */
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/* /////////////////////////////////////////////////////////////////////////
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* Helper functions
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*/
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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template <ss_typename_param_k S>
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inline ss_size_t left_len(S const& s, ss_size_t n)
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{
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const ss_size_t len = stlsoft_ns_qual(c_str_len)(s);
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if(n > len)
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{
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n = len;
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}
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return n;
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}
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/* /////////////////////////////////////////////////////////////////////////
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* String class functions
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*/
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/** \brief
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*
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* \ingroup group__library__string
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*/
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template <ss_typename_param_k S>
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inline S left(S const& s, ss_size_t n)
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{
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typedef string_traits<S> traits_t;
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return traits_t::construct(s, 0, left_len(s, n));
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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template <ss_typename_param_k S>
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inline S right(S const& s, ss_size_t n)
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{
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typedef string_traits<S> traits_t;
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const ss_size_t len = stlsoft_ns_qual(c_str_len)(s);
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if(n > len)
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{
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n = len;
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}
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return traits_t::construct(s, len - n, n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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template <ss_typename_param_k S>
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inline S mid(S const& s, ss_size_t pos, ss_size_t n)
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{
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typedef string_traits<S> traits_t;
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const ss_size_t len = stlsoft_ns_qual(c_str_len)(s);
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if(pos > len)
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{
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pos = len;
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}
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if(n > len - pos)
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{
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n = len - pos;
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}
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return traits_t::construct(s, pos, n);
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}
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/* /////////////////////////////////////////////////////////////////////////
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* C-style string slice functions
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*/
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#if defined(STLSOFT_STRING_CONTAINER_SLICE_FNS_STRING_TEMPLATE)
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# define _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE STLSOFT_STRING_CONTAINER_SLICE_FNS_STRING_TEMPLATE
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#elif defined(STLSOFT_STRING_CONTAINERS_SLICE_FNS_USE_std_basic_string) || \
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defined(STLSOFT_STRING_CONTAINERS_SLICE_FNS_USE_STD_BASIC_STRING)
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# define _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE stlsoft_ns_qual_std(basic_string)
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#else /* ? STLSOFT_STRING_CONTAINER_SLICE_FNS_STRING_TEMPLATE */
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# define _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE stlsoft_ns_qual(basic_simple_string)
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#endif /* !STLSOFT_STRING_CONTAINER_SLICE_FNS_STRING_TEMPLATE */
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> left(ss_char_a_t const* s, ss_size_t n)
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{
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typedef _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> string_t;
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return string_t(s, left_len(s, n));
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> left(ss_char_a_t *s, ss_size_t n)
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{
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return left(const_cast<ss_char_a_t const*>(s), n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> left(ss_char_w_t const* s, ss_size_t n)
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{
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typedef _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> string_t;
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return string_t(s, left_len(s, n));
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> left(ss_char_w_t *s, ss_size_t n)
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{
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return left(const_cast<ss_char_w_t const*>(s), n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> right(ss_char_a_t const* s, ss_size_t n)
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{
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typedef _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> string_t;
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const ss_size_t len = stlsoft_ns_qual(c_str_len)(s);
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if(n > len)
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{
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n = len;
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}
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return string_t(s + (len - n), n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> right(ss_char_a_t *s, ss_size_t n)
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{
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return right(const_cast<ss_char_a_t const*>(s), n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> right(ss_char_w_t const* s, ss_size_t n)
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{
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typedef _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> string_t;
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const ss_size_t len = stlsoft_ns_qual(c_str_len)(s);
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if(n > len)
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{
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n = len;
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}
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return string_t(s + (len - n), n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> right(ss_char_w_t *s, ss_size_t n)
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{
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return right(const_cast<ss_char_w_t const*>(s), n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> mid(ss_char_a_t const* s, ss_size_t pos, ss_size_t n)
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{
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typedef _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> string_t;
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const ss_size_t len = stlsoft_ns_qual(c_str_len)(s);
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if(pos > len)
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{
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pos = len;
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}
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if(n > len - pos)
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{
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n = len - pos;
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}
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return string_t(s + pos, n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_a_t> mid(ss_char_a_t *s, ss_size_t pos, ss_size_t n)
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{
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return mid(const_cast<ss_char_a_t const*>(s), pos, n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> mid(ss_char_w_t const* s, ss_size_t pos, ss_size_t n)
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{
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typedef _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> string_t;
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const ss_size_t len = stlsoft_ns_qual(c_str_len)(s);
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if(pos > len)
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{
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pos = len;
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}
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if(n > len - pos)
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{
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n = len - pos;
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}
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return string_t(s + pos, n);
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}
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/** \brief
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*
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* \ingroup group__library__string
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*/
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inline _STLSOFT_STRING_CONTAINER_SLICE_FUNCTIONS_RETURN_TEMPLATE<ss_char_w_t> mid(ss_char_w_t *s, ss_size_t pos, ss_size_t n)
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{
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return mid(const_cast<ss_char_w_t const*>(s), pos, n);
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}
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////////////////////////////////////////////////////////////////////////////
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// Unit-testing
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#ifdef STLSOFT_UNITTEST
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# include "./unittest/container_slice_functions_unittest_.h"
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#endif /* STLSOFT_UNITTEST */
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/* ////////////////////////////////////////////////////////////////////// */
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#ifndef _STLSOFT_NO_NAMESPACE
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} // namespace stlsoft
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#endif /* _STLSOFT_NO_NAMESPACE */
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/* ////////////////////////////////////////////////////////////////////// */
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#endif /* !STLSOFT_INCL_STLSOFT_STRING_HPP_CONTAINER_SLICE_FUNCTIONS */
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/* ///////////////////////////// end of file //////////////////////////// */
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