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#include "filter.h"
#include "zstring.h"
#include <wx/string.h>
#include <set>
#include <vector>
#include "resources.h"
using FreeFileSync::FilterProcess;
void compoundStringToTable(const Zstring& compoundInput, const DefaultChar* delimiter, std::vector<Zstring>& output)
{
output.clear();
Zstring input(compoundInput);
//make sure input ends with delimiter - no problem with empty strings here
if (!input.EndsWith(delimiter))
input += delimiter;
unsigned int indexStart = 0;
unsigned int indexEnd = 0;
while ((indexEnd = input.find(delimiter, indexStart)) != Zstring::npos)
{
if (indexStart != indexEnd) //do not add empty strings
{
Zstring newEntry = input.substr(indexStart, indexEnd - indexStart);
newEntry.Trim(true); //remove whitespace characters from right
newEntry.Trim(false); //remove whitespace characters from left
if (!newEntry.empty())
output.push_back(newEntry);
}
indexStart = indexEnd + 1;
}
}
inline
void mergeVectors(std::vector<Zstring>& changing, const std::vector<Zstring>& input)
{
for (std::vector<Zstring>::const_iterator i = input.begin(); i != input.end(); ++i)
changing.push_back(*i);
}
std::vector<Zstring> compoundStringToFilter(const Zstring& filterString)
{
//delimiters may be ';' or '\n'
std::vector<Zstring> filterList;
std::vector<Zstring> filterPreProcessing;
compoundStringToTable(filterString, wxT(";"), filterPreProcessing);
for (std::vector<Zstring>::const_iterator i = filterPreProcessing.begin(); i != filterPreProcessing.end(); ++i)
{
std::vector<Zstring> newEntries;
compoundStringToTable(*i, wxT("\n"), newEntries);
mergeVectors(filterList, newEntries);
}
return filterList;
}
inline
void addFilterEntry(const Zstring& filtername, std::set<Zstring>& fileFilter, std::set<Zstring>& directoryFilter)
{
Zstring filterFormatted = filtername;
#ifdef FFS_WIN
//Windows does NOT distinguish between upper/lower-case
filterFormatted.MakeLower();
#elif defined FFS_LINUX
//Linux DOES distinguish between upper/lower-case
//nothing to do here
#endif
//remove leading separators (keep BEFORE test for Zstring::empty()!)
if (filterFormatted.length() > 0 && *filterFormatted.c_str() == GlobalResources::FILE_NAME_SEPARATOR)
filterFormatted = Zstring(filterFormatted.c_str() + 1);
if (!filterFormatted.empty())
{
//Test if filterFormatted ends with GlobalResources::FILE_NAME_SEPARATOR, ignoring '*' and '?'.
//If so, treat as filter for directory and add to directoryFilter.
const DefaultChar* filter = filterFormatted.c_str();
int i = filterFormatted.length() - 1;
while (filter[i] == DefaultChar('*') || filter[i] == DefaultChar('?'))
{
--i;
if (i == -1)
break;
}
if (i >= 0 && filter[i] == GlobalResources::FILE_NAME_SEPARATOR) //last FILE_NAME_SEPARATOR found
{
if (i != int(filterFormatted.length()) - 1) // "name\*"
{
fileFilter.insert(filterFormatted);
directoryFilter.insert(filterFormatted);
}
//else // "name\"
if (i > 0) // "name\*" or "name\": add "name" to directory filter
directoryFilter.insert(Zstring(filterFormatted.c_str(), i));
}
else
{
fileFilter.insert(filterFormatted);
directoryFilter.insert(filterFormatted);
}
}
}
inline
bool matchesFilter(const DefaultChar* name, const std::set<Zstring>& filter)
{
#ifdef FFS_WIN //Windows does NOT distinguish between upper/lower-case
Zstring nameFormatted = name;
nameFormatted.MakeLower();
#elif defined FFS_LINUX //Linux DOES distinguish between upper/lower-case
const DefaultChar* const nameFormatted = name; //nothing to do here
#endif
for (std::set<Zstring>::iterator j = filter.begin(); j != filter.end(); ++j)
if (Zstring::Matches(nameFormatted, *j))
return true;
return false;
}
//##############################################################
FilterProcess::FilterProcess(const wxString& includeFilter, const wxString& excludeFilter)
{
//no need for regular expressions! In tests wxRegex was by factor of 10 slower than wxString::Matches()!!
//load filter into vectors of strings
//delimiters may be ';' or '\n'
std::vector<Zstring> includeList = compoundStringToFilter(includeFilter.c_str());
std::vector<Zstring> excludeList = compoundStringToFilter(excludeFilter.c_str());
//setup include/exclude filters for files and directories
for (std::vector<Zstring>::iterator i = includeList.begin(); i != includeList.end(); ++i)
addFilterEntry(*i, filterFileIn, filterFolderIn);
for (std::vector<Zstring>::iterator i = excludeList.begin(); i != excludeList.end(); ++i)
addFilterEntry(*i, filterFileEx, filterFolderEx);
}
bool FilterProcess::matchesFileFilter(const DefaultChar* relFilename) const
{
if ( matchesFilter(relFilename, filterFileIn) && //process include filters
!matchesFilter(relFilename, filterFileEx)) //process exclude filters
return true;
else
return false;
}
bool FilterProcess::matchesDirFilter(const DefaultChar* relDirname) const
{
if ( matchesFilter(relDirname, filterFolderIn) && //process include filters
!matchesFilter(relDirname, filterFolderEx)) //process exclude filters
return true;
else
return false;
}
void FilterProcess::filterGridData(FolderComparison& folderCmp) const
{
//execute filtering...
for (FolderComparison::iterator j = folderCmp.begin(); j != folderCmp.end(); ++j)
{
FileComparison& fileCmp = j->fileCmp;
for (FileComparison::iterator i = fileCmp.begin(); i != fileCmp.end(); ++i)
{
//left hand side
if (i->fileDescrLeft.objType == FileDescrLine::TYPE_FILE)
{
if (!matchesFileFilter(i->fileDescrLeft.relativeName.c_str()))
{
i->selectedForSynchronization = false;
continue;
}
}
else if (i->fileDescrLeft.objType == FileDescrLine::TYPE_DIRECTORY)
{
if (!matchesDirFilter(i->fileDescrLeft.relativeName.c_str()))
{
i->selectedForSynchronization = false;
continue;
}
}
//right hand side
else if (i->fileDescrRight.objType == FileDescrLine::TYPE_FILE)
{
if (!matchesFileFilter(i->fileDescrRight.relativeName.c_str()))
{
i->selectedForSynchronization = false;
continue;
}
}
else if (i->fileDescrRight.objType == FileDescrLine::TYPE_DIRECTORY)
{
if (!matchesDirFilter(i->fileDescrRight.relativeName.c_str()))
{
i->selectedForSynchronization = false;
continue;
}
}
i->selectedForSynchronization = true;
}
}
}
template <bool includeRows>
inline
void inOrExcludeAllRows(FreeFileSync::FolderComparison& folderCmp)
{
//remove all filters on folderCmp
for (FreeFileSync::FolderComparison::iterator j = folderCmp.begin(); j != folderCmp.end(); ++j)
{
FreeFileSync::FileComparison& fileCmp = j->fileCmp;
for (FreeFileSync::FileComparison::iterator i = fileCmp.begin(); i != fileCmp.end(); ++i)
i->selectedForSynchronization = includeRows;
}
}
void FilterProcess::includeAllRowsOnGrid(FolderComparison& folderCmp)
{
//remove all filters on currentGridData
inOrExcludeAllRows<true>(folderCmp);
}
void FilterProcess::excludeAllRowsOnGrid(FolderComparison& folderCmp)
{
//exclude all rows on currentGridData
inOrExcludeAllRows<false>(folderCmp);
}
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