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/*
SPDX-FileCopyrightText: 2017 Volker Krause <vkrause@kde.org>
SPDX-License-Identifier: MIT
*/
#include <config-userfeedback.h>
#include "surveytargetexpressionparser.h"
#include "surveytargetexpression.h"
#ifdef HAVE_SURVEY_TARGET_EXPRESSIONS
#include "surveytargetexpressionparser_p.h"
#include "surveytargetexpressionscanner.h"
#endif
#include <QString>
#include <cstring>
char* unquoteString(const char *str)
{
const auto size = strlen(str) - 2;
if (size <= 0)
return nullptr;
auto out = (char*)malloc(size + 1);
memset(out, 0, size + 1);
auto outIt = out;
for (auto it = str + 1; it < str + size + 1; ++it, ++outIt) {
if (*it == '\\') {
++it;
switch (*it) {
case '\\':
case '"':
*outIt = *it; break;
case 'n':
*outIt = '\n'; break;
case 't':
*outIt = '\t'; break;
default:
*outIt++ = '\\';
*outIt = *it;
}
} else {
*outIt = *it;
}
}
return out;
}
using namespace KUserFeedback;
SurveyTargetExpressionParser::SurveyTargetExpressionParser()
: m_expression(nullptr)
{
}
SurveyTargetExpressionParser::~SurveyTargetExpressionParser()
{
delete m_expression;
}
bool SurveyTargetExpressionParser::parse(const QString &s)
{
delete m_expression;
m_expression = nullptr;
#ifdef HAVE_SURVEY_TARGET_EXPRESSIONS
yyscan_t scanner;
YY_BUFFER_STATE state;
if (yylex_init(&scanner))
return false;
QByteArray b = s.toUtf8();
state = yy_scan_string(b.constData(), scanner);
if (yyparse(&m_expression, scanner)) {
delete m_expression;
m_expression = nullptr;
}
yy_delete_buffer(state, scanner);
yylex_destroy(scanner);
#endif
return m_expression;
}
SurveyTargetExpression* SurveyTargetExpressionParser::expression() const
{
return m_expression;
}
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