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#include "filter_range.h"
bool str2range(const STD_string& str, Range& range, int srcsize) {
Log<Filter> odinlog("","str2range");
if(str=="") return false;
int increment=1;
svector tokscol=tokens(str,':');
int colsize=tokscol.size();
if(colsize<1 || colsize>2) return false;
if(colsize==2) increment=atoi(tokscol[1].c_str());
STD_string fromto=tokscol[0];
bool result=false;
if(tolowerstr(fromto)=="all") {
range=Range::all();
result=true;
} else {
svector toks=tokens(fromto,'-');
if(toks.size()==2) {range=Range(atoi(toks[0].c_str()),atoi(toks[1].c_str()),increment); result=true;}
if(toks.size()==1) {
int singleval=atoi(toks[0].c_str());
int low=singleval;
int upp=singleval;
if(fromto.length()) {
if(fromto[0]=='-') low=0;
if(fromto[fromto.length()-1]=='-') upp=srcsize-1;
}
range=Range(low,upp,increment);
result=true;
}
}
if(!result) {
ODINLOG(odinlog,errorLog) << "Error parsing range string >" << str << "<" << STD_endl;
}
if(result) {
if(range.first()>range.last()) result=false;
if(range.first()<0 || range.first()>=srcsize) result=false;
if(range.last()<0 || range.last()>=srcsize) result=false;
if(!result) {
ODINLOG(odinlog,errorLog) << "selected " << range << " out of valid range (0," << (srcsize-1) << ")" << STD_endl;
}
}
return result;
}
STD_string str2range_usage() {return "single position, or \'all\', or explicit range, optionally with increment (e.g. 1-10:3)";}
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