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author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2013-06-25 22:59:01 +0000 |
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committer | <> | 2013-09-27 11:49:28 +0000 |
commit | 8c4528713d907ee2cfd3bfcbbad272c749867f84 (patch) | |
tree | c09e2ce80f47b90c85cc720f5139089ad9c8cfff /boost/algorithm/string/split.hpp | |
download | boost-tarball-baserock/morph.tar.gz |
Imported from /home/lorry/working-area/delta_boost-tarball/boost_1_54_0.tar.bz2.boost_1_54_0baserock/morph
Diffstat (limited to 'boost/algorithm/string/split.hpp')
-rw-r--r-- | boost/algorithm/string/split.hpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/boost/algorithm/string/split.hpp b/boost/algorithm/string/split.hpp new file mode 100644 index 000000000..cae712c07 --- /dev/null +++ b/boost/algorithm/string/split.hpp @@ -0,0 +1,163 @@ +// Boost string_algo library split.hpp header file ---------------------------// + +// Copyright Pavol Droba 2002-2006. +// +// Distributed under 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) + +// See http://www.boost.org/ for updates, documentation, and revision history. + +#ifndef BOOST_STRING_SPLIT_HPP +#define BOOST_STRING_SPLIT_HPP + +#include <boost/algorithm/string/config.hpp> + +#include <boost/algorithm/string/iter_find.hpp> +#include <boost/algorithm/string/finder.hpp> +#include <boost/algorithm/string/compare.hpp> + +/*! \file + Defines basic split algorithms. + Split algorithms can be used to divide a string + into several parts according to given criteria. + + Each part is copied and added as a new element to the + output container. + Thus the result container must be able to hold copies + of the matches (in a compatible structure like std::string) or + a reference to it (e.g. using the iterator range class). + Examples of such a container are \c std::vector<std::string> + or \c std::list<boost::iterator_range<std::string::iterator>> +*/ + +namespace boost { + namespace algorithm { + +// find_all ------------------------------------------------------------// + + //! Find all algorithm + /*! + This algorithm finds all occurrences of the search string + in the input. + + Each part is copied and added as a new element to the + output container. + Thus the result container must be able to hold copies + of the matches (in a compatible structure like std::string) or + a reference to it (e.g. using the iterator range class). + Examples of such a container are \c std::vector<std::string> + or \c std::list<boost::iterator_range<std::string::iterator>> + + \param Result A container that can hold copies of references to the substrings + \param Input A container which will be searched. + \param Search A substring to be searched for. + \return A reference the result + + \note Prior content of the result will be overwritten. + + \note This function provides the strong exception-safety guarantee + */ + template< typename SequenceSequenceT, typename Range1T, typename Range2T > + inline SequenceSequenceT& find_all( + SequenceSequenceT& Result, + Range1T& Input, + const Range2T& Search) + { + return ::boost::algorithm::iter_find( + Result, + Input, + ::boost::algorithm::first_finder(Search) ); + } + + //! Find all algorithm ( case insensitive ) + /*! + This algorithm finds all occurrences of the search string + in the input. + Each part is copied and added as a new element to the + output container. Thus the result container must be able to hold copies + of the matches (in a compatible structure like std::string) or + a reference to it (e.g. using the iterator range class). + Examples of such a container are \c std::vector<std::string> + or \c std::list<boost::iterator_range<std::string::iterator>> + + Searching is case insensitive. + + \param Result A container that can hold copies of references to the substrings + \param Input A container which will be searched. + \param Search A substring to be searched for. + \param Loc A locale used for case insensitive comparison + \return A reference the result + + \note Prior content of the result will be overwritten. + + \note This function provides the strong exception-safety guarantee + */ + template< typename SequenceSequenceT, typename Range1T, typename Range2T > + inline SequenceSequenceT& ifind_all( + SequenceSequenceT& Result, + Range1T& Input, + const Range2T& Search, + const std::locale& Loc=std::locale() ) + { + return ::boost::algorithm::iter_find( + Result, + Input, + ::boost::algorithm::first_finder(Search, is_iequal(Loc) ) ); + } + + +// tokenize -------------------------------------------------------------// + + //! Split algorithm + /*! + Tokenize expression. This function is equivalent to C strtok. Input + sequence is split into tokens, separated by separators. Separators + are given by means of the predicate. + + Each part is copied and added as a new element to the + output container. + Thus the result container must be able to hold copies + of the matches (in a compatible structure like std::string) or + a reference to it (e.g. using the iterator range class). + Examples of such a container are \c std::vector<std::string> + or \c std::list<boost::iterator_range<std::string::iterator>> + + \param Result A container that can hold copies of references to the substrings + \param Input A container which will be searched. + \param Pred A predicate to identify separators. This predicate is + supposed to return true if a given element is a separator. + \param eCompress If eCompress argument is set to token_compress_on, adjacent + separators are merged together. Otherwise, every two separators + delimit a token. + \return A reference the result + + \note Prior content of the result will be overwritten. + + \note This function provides the strong exception-safety guarantee + */ + template< typename SequenceSequenceT, typename RangeT, typename PredicateT > + inline SequenceSequenceT& split( + SequenceSequenceT& Result, + RangeT& Input, + PredicateT Pred, + token_compress_mode_type eCompress=token_compress_off ) + { + return ::boost::algorithm::iter_split( + Result, + Input, + ::boost::algorithm::token_finder( Pred, eCompress ) ); + } + + } // namespace algorithm + + // pull names to the boost namespace + using algorithm::find_all; + using algorithm::ifind_all; + using algorithm::split; + +} // namespace boost + + +#endif // BOOST_STRING_SPLIT_HPP + |