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82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
/* Copyright (C) 2019 MariaDB Corporation.
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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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#include <string>
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using namespace std;
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#include "functor_str.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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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_quote::operationType(FunctionParm& /*fp*/,
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CalpontSystemCatalog::ColType& resultType)
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{
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return resultType;
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}
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std::string Func_quote::getStrVal(rowgroup::Row& row, FunctionParm& fp, bool& isNull,
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execplan::CalpontSystemCatalog::ColType& /*op_ct*/)
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{
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string str;
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stringValue(fp[0], row, isNull, str);
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if (isNull)
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{
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isNull = false;
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return "NULL";
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}
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size_t strSize = strlen(str.c_str());
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string result;
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result.reserve(((strSize + 1) * 1.3) + 2);
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result.push_back('\'');
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for (uint64_t i = 0; i < strSize; i++)
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{
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switch (str[i])
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{
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case 0:
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result.push_back('\\');
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result.push_back('0');
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break;
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case '\032':
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result.push_back('\\');
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result.push_back('Z');
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break;
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case '\'':
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case '\\':
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result.push_back('\\');
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result.push_back(str[i]);
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break;
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default: result.push_back(str[i]); break;
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}
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}
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result.push_back('\'');
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return result;
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}
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} // namespace funcexp
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