00001 /* $Id$ */ 00002 00003 /* 00004 * This file is part of OpenTTD. 00005 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. 00006 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00007 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. 00008 */ 00009 00012 #ifndef STRINGFILTER_TYPE_H 00013 #define STRINGFILTER_TYPE_H 00014 00015 #include "core/smallvec_type.hpp" 00016 00032 struct StringFilter { 00033 private: 00035 struct WordState { 00036 const char *start; 00037 bool match; 00038 }; 00039 00040 const char *filter_buffer; 00041 SmallVector<WordState, 4> word_index; 00042 uint word_matches; 00043 00044 const bool *case_sensitive; 00045 00046 public: 00051 StringFilter(const bool *case_sensitive = NULL) : filter_buffer(NULL), word_matches(0), case_sensitive(case_sensitive) {} 00052 ~StringFilter() { free(this->filter_buffer); } 00053 00054 void SetFilterTerm(const char *str); 00055 00060 bool IsEmpty() const { return this->word_index.Length() == 0; } 00061 00062 void ResetState(); 00063 void AddLine(const char *str); 00064 00069 bool GetState() const { return this->word_matches == this->word_index.Length(); } 00070 }; 00071 00072 #endif /* STRINGFILTER_TYPE_H */