+
+ //if you found the barcode or if you don't want to allow for diffs
+// cout << success;
+ if ((bdiffs == 0) || (success == 0)) { return success; }
+
+ else { //try aligning and see if you can find it
+// cout << endl;
+
+ int maxLength = 0;
+
+ Alignment* alignment;
+ if (barcodes.size() > 0) {
+ map<string,int>::iterator it=barcodes.begin();
+
+ for(it;it!=barcodes.end();it++){
+ if(it->first.length() > maxLength){
+ maxLength = it->first.length();
+ }
+ }
+ alignment = new NeedlemanOverlap(-1.0, 1.0, -1.0, (maxLength+bdiffs+1));
+
+ }else{ alignment = NULL; }
+
+ //can you find the barcode
+ int minDiff = 1e6;
+ int minCount = 1;
+ int minGroup = -1;
+ int minPos = 0;
+
+ for(map<string,int>::iterator it=barcodes.begin();it!=barcodes.end();it++){
+ string oligo = it->first;
+// int length = oligo.length();
+
+ if(rawSequence.length() < maxLength){ //let's just assume that the barcodes are the same length
+ success = bdiffs + 10;
+ break;
+ }
+
+ //use needleman to align first barcode.length()+numdiffs of sequence to each barcode
+ alignment->align(oligo, rawSequence.substr(0,oligo.length()+bdiffs));
+ oligo = alignment->getSeqAAln();
+ string temp = alignment->getSeqBAln();
+
+ int alnLength = oligo.length();
+
+ for(int i=oligo.length()-1;i>=0;i--){
+ if(oligo[i] != '-'){ alnLength = i+1; break; }
+ }
+ oligo = oligo.substr(0,alnLength);
+ temp = temp.substr(0,alnLength);
+
+ int newStart=0;
+ int numDiff = countDiffs(oligo, temp);
+
+// cout << oligo << '\t' << temp << '\t' << numDiff << endl;
+
+ if(numDiff < minDiff){
+ minDiff = numDiff;
+ minCount = 1;
+ minGroup = it->second;
+ minPos = 0;
+ for(int i=0;i<alnLength;i++){
+ if(temp[i] != '-'){
+ minPos++;
+ }
+ }
+ }
+ else if(numDiff == minDiff){
+ minCount++;
+ }
+
+ }
+
+ if(minDiff > bdiffs) { success = minDiff; } //no good matches
+ else if(minCount > 1) { success = bdiffs + 100; } //can't tell the difference between multiple barcodes
+ else{ //use the best match
+ group = minGroup;
+ seq.setUnaligned(rawSequence.substr(minPos));
+
+ if(qual.getName() != ""){
+ qual.trimQScores(minPos, -1);
+ }
+ success = minDiff;
+ }
+
+ if (alignment != NULL) { delete alignment; }
+
+ }
+// cout << success << endl;
+