/**
* This takes the given pattern, splits it into tokens,
* and generates a number of search entries based on the idea
* that the input follows one of the following patterns:
* - AdminRegion Location Address
* - Location Address AdminRegion
* - AdminRegion Location
* - Location AdminRegion
* - AdminRegion
*/
bool LocationService::InitializeLocationSearchEntries(const std::string& searchPattern,
LocationSearch& locationSearch)
{
LocationIndexRef locationIndex=database->GetLocationIndex();
if (!locationIndex) {
return false;
}
std::list<std::string> tokens;
locationSearch.searches.clear();
if (searchPattern.empty()) {
return true;
}
TokenizeString(searchPattern,
tokens);
if (tokens.empty()) {
return true;
}
SimplifyTokenList(tokens);
if (tokens.size()>=3) {
std::list<std::list<std::string> > slices;
GroupStringListToStrings(tokens.begin(),
tokens.size(),
3,
slices);
for (std::list< std::list<std::string> >::const_iterator slice=slices.begin();
slice!=slices.end();
++slice) {
std::list<std::string>::const_iterator text1;
std::list<std::string>::const_iterator text2;
std::list<std::string>::const_iterator text3;
text1=slice->begin();
text2=text1;
text2++;
text3=text2;
text3++;
osmscout::LocationSearch::Entry search;
search.locationPattern=*text1;
search.addressPattern=*text2;
search.adminRegionPattern=*text3;
if (!locationIndex->IsLocationIgnoreToken(search.locationPattern) &&
!locationIndex->IsRegionIgnoreToken(search.adminRegionPattern)) {
locationSearch.searches.push_back(search);
}
search.locationPattern=*text2;
search.addressPattern=*text3;
search.adminRegionPattern=*text1;
if (!locationIndex->IsLocationIgnoreToken(search.locationPattern) &&
!locationIndex->IsRegionIgnoreToken(search.adminRegionPattern)) {
locationSearch.searches.push_back(search);
}
}
}
if (tokens.size()>=2) {
std::list<std::list<std::string> > slices;
GroupStringListToStrings(tokens.begin(),
tokens.size(),
2,
slices);
for (std::list< std::list<std::string> >::const_iterator slice=slices.begin();
slice!=slices.end();
++slice) {
std::list<std::string>::const_iterator text1;
std::list<std::string>::const_iterator text2;
text1=slice->begin();
text2=text1;
text2++;
osmscout::LocationSearch::Entry search;
search.locationPattern=*text1;
search.adminRegionPattern=*text2;
if (!locationIndex->IsLocationIgnoreToken(search.locationPattern) &&
!locationIndex->IsRegionIgnoreToken(search.adminRegionPattern)) {
locationSearch.searches.push_back(search);
}
search.locationPattern=*text2;
search.adminRegionPattern=*text1;
if (!locationIndex->IsLocationIgnoreToken(search.locationPattern) &&
!locationIndex->IsRegionIgnoreToken(search.adminRegionPattern)) {
locationSearch.searches.push_back(search);
}
}
}
if (tokens.size()>=1) {
std::list<std::list<std::string> > slices;
GroupStringListToStrings(tokens.begin(),
tokens.size(),
1,
slices);
for (std::list< std::list<std::string> >::const_iterator slice=slices.begin();
slice!=slices.end();
++slice) {
std::list<std::string>::const_iterator text1=slice->begin();
osmscout::LocationSearch::Entry search;
search.adminRegionPattern=*text1;
if (!locationIndex->IsRegionIgnoreToken(search.adminRegionPattern)) {
locationSearch.searches.push_back(search);
}
}
}
return true;
}
void LocationSearch::InitializeSearchEntries(const std::string& searchPattern)
{
std::list<std::string> tokens;
if (searchPattern.empty()) {
return;
}
TokenizeString(searchPattern,
tokens);
if (tokens.empty()) {
return;
}
SimplifyTokenList(tokens);
if (tokens.size()>=3) {
std::list<std::list<std::string> > slices;
GroupStringListToStrings(tokens.begin(),
tokens.size(),
3,
slices);
for (std::list< std::list<std::string> >::const_iterator slice=slices.begin();
slice!=slices.end();
++slice) {
std::list<std::string>::const_iterator text1;
std::list<std::string>::const_iterator text2;
std::list<std::string>::const_iterator text3;
text1=slice->begin();
text2=text1;
text2++;
text3=text2;
text3++;
osmscout::LocationSearch::Entry search;
search.locationPattern=*text1;
search.addressPattern=*text2;
search.adminRegionPattern=*text3;
searches.push_back(search);
search.locationPattern=*text2;
search.addressPattern=*text3;
search.adminRegionPattern=*text1;
searches.push_back(search);
}
}
if (tokens.size()>=2) {
std::list<std::list<std::string> > slices;
GroupStringListToStrings(tokens.begin(),
tokens.size(),
2,
slices);
for (std::list< std::list<std::string> >::const_iterator slice=slices.begin();
slice!=slices.end();
++slice) {
std::list<std::string>::const_iterator text1;
std::list<std::string>::const_iterator text2;
text1=slice->begin();
text2=text1;
text2++;
osmscout::LocationSearch::Entry search;
search.locationPattern=*text1;
search.adminRegionPattern=*text2;
searches.push_back(search);
search.locationPattern=*text2;
search.adminRegionPattern=*text1;
searches.push_back(search);
}
}
if (tokens.size()>=1) {
std::list<std::list<std::string> > slices;
GroupStringListToStrings(tokens.begin(),
tokens.size(),
1,
slices);
for (std::list< std::list<std::string> >::const_iterator slice=slices.begin();
slice!=slices.end();
++slice) {
std::list<std::string>::const_iterator text1=slice->begin();
osmscout::LocationSearch::Entry search;
search.adminRegionPattern=*text1;
searches.push_back(search);
}
}
}
