Drizzled Public API Documentation

regex.cc

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  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; either version 2 of the License, or
00009  *  (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00019  */
00020 
00021 #include <config.h>
00022 
00023 #include <drizzled/session.h>
00024 #include <plugin/string_functions/functions.h>
00025 
00026 namespace drizzled
00027 {
00028 namespace string_functions
00029 {
00030 
00031 bool Regex::val_bool()
00032 {
00033   drizzled::String *res= args[0]->val_str(&_res);
00034 
00035   if (re.empty())
00036   {
00037     drizzled::String _regex;
00038     drizzled::String *regex= args[1]->val_str(&_regex);
00039 
00040     if (not regex or not regex->length() or not res or not res->length())
00041     {
00042       null_value= true;
00043       return false;
00044     }
00045 
00046     re.assign(regex->c_str());
00047   }
00048 
00049   if (not res or not res->length())
00050   {
00051     null_value= true;
00052     return false;
00053   }
00054 
00055   null_value= false;
00056 
00057   if (is_negative)
00058     return not boost::regex_match(res->c_str(), re);
00059 
00060   return boost::regex_match(res->c_str(), re);
00061 }
00062 
00063 } // namespace string_functions
00064 } // namespace drizzled