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132 lines
3.8 KiB
C++
132 lines
3.8 KiB
C++
//
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// StringTokenizer.h
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//
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// $Id: //poco/svn/Foundation/include/Poco/StringTokenizer.h#2 $
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//
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// Library: Foundation
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// Package: Core
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// Module: StringTokenizer
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//
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// Definition of the StringTokenizer class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Foundation_StringTokenizer_INCLUDED
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#define Foundation_StringTokenizer_INCLUDED
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#include "Poco/Foundation.h"
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#include "Poco/Exception.h"
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#include <vector>
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#include <cstddef>
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namespace Poco {
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class Foundation_API StringTokenizer
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/// A simple tokenizer that splits a string into
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/// tokens, which are separated by separator characters.
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/// An iterator is used to iterate over all tokens.
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{
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public:
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enum Options
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{
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TOK_IGNORE_EMPTY = 1, /// ignore empty tokens
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TOK_TRIM = 2 /// remove leading and trailing whitespace from tokens
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};
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typedef std::vector<std::string>::const_iterator Iterator;
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StringTokenizer(const std::string& str, const std::string& separators, int options = 0);
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/// Splits the given string into tokens. The tokens are expected to be
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/// separated by one of the separator characters given in separators.
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/// Additionally, options can be specified:
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/// * TOK_IGNORE_EMPTY: empty tokens are ignored
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/// * TOK_TRIM: trailing and leading whitespace is removed from tokens.
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/// An empty token at the end of str is always ignored. For example,
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/// a StringTokenizer with the following arguments:
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/// StringTokenizer(",ab,cd,", ",");
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/// will produce three tokens, "", "ab" and "cd".
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~StringTokenizer();
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/// Destroys the tokenizer.
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Iterator begin() const;
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Iterator end() const;
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const std::string& operator [] (std::size_t index) const;
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/// Returns the index'th token.
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/// Throws a RangeException if the index is out of range.
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std::size_t count() const;
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/// Returns the number of tokens.
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private:
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StringTokenizer(const StringTokenizer&);
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StringTokenizer& operator = (const StringTokenizer&);
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std::vector<std::string> _tokens;
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};
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//
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// inlines
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//
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inline StringTokenizer::Iterator StringTokenizer::begin() const
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{
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return _tokens.begin();
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}
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inline StringTokenizer::Iterator StringTokenizer::end() const
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{
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return _tokens.end();
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}
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inline const std::string& StringTokenizer::operator [] (std::size_t index) const
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{
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if (index >= _tokens.size()) throw RangeException();
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return _tokens[index];
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}
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inline std::size_t StringTokenizer::count() const
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{
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return _tokens.size();
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}
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} // namespace Poco
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#endif // Foundation_StringTokenizer_INCLUDED
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