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// -*- C++ -*-
//
// Package: Core
// Class : expressionFormatHelpers
//
// Implementation:
// <Notes on implementation>
//
// Original Author: Chris Jones
// Created: Fri Aug 22 12:25:04 EDT 2008
//
// system include files
#include <boost/regex.hpp>
// user include files
#include "Fireworks/Core/src/expressionFormatHelpers.h"
//
// constants, enums and typedefs
//
namespace fireworks {
namespace expression {
std::string oldToNewFormat(const std::string& iExpression) {
//Backwards compatibility with old format: If find a $. or a () just remove them
const std::string variable;
static boost::regex const reVarName("(\\$\\.)|(\\(\\))");
return boost::regex_replace(iExpression, reVarName, variable);
}
long indexFromNewFormatToOldFormat(const std::string& iNewFormat,
long iNewFormatIndex,
const std::string& iOldFormat) {
if (iNewFormat.substr(0, iNewFormatIndex) == iOldFormat.substr(0, iNewFormatIndex)) {
return iNewFormatIndex;
}
assert(iNewFormat.size() < iOldFormat.size());
std::string::const_iterator itNew = iNewFormat.begin(), itOld = iOldFormat.begin(), itNewEnd = iNewFormat.end();
for (; itNew != itNewEnd && itNew - iNewFormat.begin() < iNewFormatIndex; ++itNew, ++itOld) {
while (*itNew != *itOld) {
assert(itOld != iOldFormat.end());
++itOld;
}
}
return itOld - iOldFormat.begin();
}
} // namespace expression
} // namespace fireworks
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