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deb-goldedplus/goldlib/gall/gsearch.cpp

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2000-02-25 10:15:17 +00:00
// This may look like C code, but it is really -*- C++ -*-
// ------------------------------------------------------------------
// The Goldware Library
// Copyright (C) 1990-1999 Odinn Sorensen
// ------------------------------------------------------------------
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307, USA
// ------------------------------------------------------------------
// $Id$
// ------------------------------------------------------------------
// Search with different methods.
// ------------------------------------------------------------------
#include <gmemdbg.h>
#include <gsearch.h>
#include <gwildmat.h>
#include <gregex.h>
#include <gfuzzy.h>
#include <gbmh.h>
// ------------------------------------------------------------------
gsearch::gsearch() {
regexp = NULL;
fuzzyp = NULL;
plainp = NULL;
type = plain;
case_sensitive = false;
reverse = false;
fuzzydegree = 1;
score_success = 1;
score_failure = 0;
score = 0;
found = false;
}
// ------------------------------------------------------------------
gsearch::~gsearch() {
delete regexp;
delete fuzzyp;
delete plainp;
}
// ------------------------------------------------------------------
void gsearch::set_pattern(const char* a) {
delete regexp; regexp = NULL;
delete fuzzyp; fuzzyp = NULL;
delete plainp; plainp = NULL;
pattern = a;
}
// ------------------------------------------------------------------
bool gsearch::search(const string& str) {
int discard_result;
return search(str, discard_result);
}
// ------------------------------------------------------------------
bool gsearch::search(const string& str, int& result) {
return search(str.c_str(), result);
}
// ------------------------------------------------------------------
bool gsearch::search(const char* str) {
int discard_result;
return search(str, discard_result);
}
// ------------------------------------------------------------------
bool gsearch::search(const char* str, int& result) {
found = false;
switch(type) {
case regex:
if(regexp == NULL) {
regexp = new gregex;
throw_new(regexp);
regexp->compile(pattern.c_str(), gregex::extended | (case_sensitive ? 0 : gregex::icase));
}
found = regexp->match(str);
break;
case wildcard:
found = gwildmat(str, pattern.c_str(), not case_sensitive);
break;
case fuzzy:
if(fuzzyp == NULL) {
fuzzyp = new gfuzzy;
throw_new(fuzzyp);
fuzzyp->init(pattern.c_str(), fuzzydegree, case_sensitive);
}
found = fuzzyp->findfirst(str);
break;
case plain:
if(plainp == NULL) {
plainp = new gbmh;
throw_new(plainp);
plainp->init(pattern.c_str(), not case_sensitive);
}
found = plainp->find(str);
break;
}
if(reverse)
score = score_failure;
else
score = score_success;
result = score;
return found;
}
// ------------------------------------------------------------------
gsearch& gsearch::operator=(const gsearch& a) {
regexp = NULL;
fuzzyp = NULL;
plainp = NULL;
id = a.id;
pattern = a.pattern;
type = a.type;
case_sensitive = a.case_sensitive;
reverse = a.reverse;
score_success = a.score_success;
score_failure = a.score_failure;
return *this;
}
// ------------------------------------------------------------------