Drizzled Public API Documentation

string.h

00001 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  * Copyright (C) 2010 Brian Aker
00005  * All rights reserved.
00006  *
00007  * Redistribution and use in source and binary forms, with or without
00008  * modification, are permitted provided that the following conditions are met:
00009  *
00010  *   * Redistributions of source code must retain the above copyright notice,
00011  *     this list of conditions and the following disclaimer.
00012  *   * Redistributions in binary form must reproduce the above copyright notice,
00013  *     this list of conditions and the following disclaimer in the documentation
00014  *     and/or other materials provided with the distribution.
00015  *   * Neither the name of Patrick Galbraith nor the names of its contributors
00016  *     may be used to endorse or promote products derived from this software
00017  *     without specific prior written permission.
00018  *
00019  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00020  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00021  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00022  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
00023  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00024  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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00030  */
00031 
00032 /*
00033   Some sections of this code came from the Boost examples.
00034 */
00035 
00036 #pragma once
00037 
00038 #include <utility>
00039 #include <string>
00040 #include <vector>
00041 
00042 #include <boost/algorithm/string/predicate.hpp>
00043 #include <boost/functional/hash.hpp>
00044 #include <boost/shared_ptr.hpp>
00045 
00046 namespace drizzled
00047 {
00048 
00049 namespace util
00050 {
00051 
00052 
00053 namespace string {
00054 typedef boost::shared_ptr<std::string> shared_ptr;
00055 typedef boost::shared_ptr<const std::string> const_shared_ptr;
00056 typedef std::vector< std::string > vector;
00057 }
00058 
00059 struct insensitive_equal_to : std::binary_function<std::string, std::string, bool>
00060 {
00061   bool operator()(std::string const& x, std::string const& y) const
00062   {
00063     return boost::algorithm::iequals(x, y, std::locale());
00064   }
00065 };
00066 
00067 struct insensitive_hash : std::unary_function<std::string, std::size_t>
00068 {
00069   std::size_t operator()(std::string const& x) const
00070   {
00071     std::size_t seed = 0;
00072     std::locale locale;
00073 
00074     for(std::string::const_iterator it = x.begin(); it != x.end(); ++it)
00075     {
00076       boost::hash_combine(seed, std::toupper(*it, locale));
00077     }
00078 
00079     return seed;
00080   }
00081 };
00082 
00083 struct sensitive_hash : std::unary_function< std::vector<char>, std::size_t>
00084 {
00085   std::size_t operator()(std::vector<char> const& x) const
00086   {
00087     std::size_t seed = 0;
00088 
00089     for(std::vector<char>::const_iterator it = x.begin(); it != x.end(); ++it)
00090     {
00091       boost::hash_combine(seed, *it);
00092     }
00093 
00094     return seed;
00095   }
00096 };
00097 
00098 } /* namespace util */
00099 } /* namespace drizzled */
00100