00001 /* $Id: stringfilter_type.h 24632 2012-10-27 15:26:17Z frosch $ */ 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 #include "strings_type.h" 00017 00033 struct StringFilter { 00034 private: 00036 struct WordState { 00037 const char *start; 00038 bool match; 00039 }; 00040 00041 const char *filter_buffer; 00042 SmallVector<WordState, 4> word_index; 00043 uint word_matches; 00044 00045 const bool *case_sensitive; 00046 00047 public: 00052 StringFilter(const bool *case_sensitive = NULL) : filter_buffer(NULL), word_matches(0), case_sensitive(case_sensitive) {} 00053 ~StringFilter() { free(this->filter_buffer); } 00054 00055 void SetFilterTerm(const char *str); 00056 00061 bool IsEmpty() const { return this->word_index.Length() == 0; } 00062 00063 void ResetState(); 00064 void AddLine(const char *str); 00065 void AddLine(StringID str); 00066 00071 bool GetState() const { return this->word_matches == this->word_index.Length(); } 00072 }; 00073 00074 #endif /* STRINGFILTER_TYPE_H */