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84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/****************************************************************************
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* $Id: func_replace.cpp 3923 2013-06-19 21:43:06Z bwilkinson $
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*
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*
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****************************************************************************/
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#include <string>
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using namespace std;
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#include "functor_str.h"
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#include "functioncolumn.h"
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using namespace execplan;
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#include "rowgroup.h"
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using namespace rowgroup;
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#include "joblisttypes.h"
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using namespace joblist;
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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_replace::operationType(FunctionParm& fp, CalpontSystemCatalog::ColType& resultType)
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{
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// operation type is not used by this functor
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return fp[0]->data()->resultType();
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}
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std::string Func_replace::getStrVal(rowgroup::Row& row,
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FunctionParm& fp,
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bool& isNull,
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execplan::CalpontSystemCatalog::ColType&)
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{
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const string& str = fp[0]->data()->getStrVal(row, isNull);
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const string& fromstr = fp[1]->data()->getStrVal(row, isNull);
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const string& tostr = fp[2]->data()->getStrVal(row, isNull);
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string newstr;
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unsigned int i = 0;
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for(;;)
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{
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size_t pos = str.find(fromstr, i);
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if ( pos != string::npos ) {
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//match
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if ( pos > i )
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newstr = newstr + str.substr(i,pos-i);
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newstr = newstr + tostr;
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i = pos + fromstr.size();
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}
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else {
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newstr = newstr + str.substr(i,1000);
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break;
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}
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}
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return newstr;
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}
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} // namespace funcexp
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// vim:ts=4 sw=4:
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