]> git.donarmstrong.com Git - mothur.git/blobdiff - trimseqscommand.cpp
added homova command
[mothur.git] / trimseqscommand.cpp
index ef0c06649af1afb64458bf153457bdadda566999..7267b91da4d2ec193508579e8226c33d6758e9c7 100644 (file)
@@ -8,20 +8,86 @@
  */
 
 #include "trimseqscommand.h"
+#include "needlemanoverlap.hpp"
+
+//**********************************************************************************************************************
+
+vector<string> TrimSeqsCommand::getValidParameters(){  
+       try {
+               string Array[] =  {"fasta", "flip", "oligos", "maxambig", "maxhomop", "group","minlength", "maxlength", "qfile", 
+                                                                       "qthreshold", "qwindowaverage", "qstepsize", "qwindowsize", "qaverage", "rollaverage",
+                                                                       "keepfirst", "removelast",
+                                                                       "allfiles", "qtrim","tdiffs", "pdiffs", "bdiffs", "processors", "outputdir","inputdir"};
+               vector<string> myArray (Array, Array+(sizeof(Array)/sizeof(string)));
+               return myArray;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "getValidParameters");
+               exit(1);
+       }
+}
+
+//**********************************************************************************************************************
+
+TrimSeqsCommand::TrimSeqsCommand(){    
+       try {
+               abort = true;
+               //initialize outputTypes
+               vector<string> tempOutNames;
+               outputTypes["fasta"] = tempOutNames;
+               outputTypes["qual"] = tempOutNames;
+               outputTypes["group"] = tempOutNames;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "TrimSeqsCommand");
+               exit(1);
+       }
+}
+
+//**********************************************************************************************************************
+
+vector<string> TrimSeqsCommand::getRequiredParameters(){       
+       try {
+               string Array[] =  {"fasta"};
+               vector<string> myArray (Array, Array+(sizeof(Array)/sizeof(string)));
+               return myArray;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "getRequiredParameters");
+               exit(1);
+       }
+}
+
+//**********************************************************************************************************************
+
+vector<string> TrimSeqsCommand::getRequiredFiles(){    
+       try {
+               vector<string> myArray;
+               return myArray;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "getRequiredFiles");
+               exit(1);
+       }
+}
 
 //***************************************************************************************************************
 
-TrimSeqsCommand::TrimSeqsCommand(string option){
+TrimSeqsCommand::TrimSeqsCommand(string option)  {
        try {
                
                abort = false;
+               comboStarts = 0;
                
                //allow user to run help
                if(option == "help") { help(); abort = true; }
                
                else {
                        //valid paramters for this command
-                       string AlignArray[] =  {"fasta", "flip", "oligos", "maxambig", "maxhomop", "minlength", "maxlength", "qfile", "qthreshold", "qaverage", "allfiles"};
+                       string AlignArray[] =  {        "fasta", "flip", "oligos", "maxambig", "maxhomop", "group","minlength", "maxlength", "qfile", 
+                                                               "qthreshold", "qwindowaverage", "qstepsize", "qwindowsize", "qaverage", "rollaverage",
+                                                               "keepfirst", "removelast",
+                                                               "allfiles", "qtrim","tdiffs", "pdiffs", "bdiffs", "processors", "outputdir","inputdir"};
                        
                        vector<string> myArray (AlignArray, AlignArray+(sizeof(AlignArray)/sizeof(string)));
                        
@@ -29,30 +95,87 @@ TrimSeqsCommand::TrimSeqsCommand(string option){
                        map<string,string> parameters = parser.getParameters();
                        
                        ValidParameters validParameter;
+                       map<string,string>::iterator it;
                        
                        //check to make sure all parameters are valid for command
-                       for (map<string,string>::iterator it = parameters.begin(); it != parameters.end(); it++) { 
+                       for (it = parameters.begin(); it != parameters.end(); it++) { 
                                if (validParameter.isValidParameter(it->first, myArray, it->second) != true) {  abort = true;  }
                        }
                        
+                       //initialize outputTypes
+                       vector<string> tempOutNames;
+                       outputTypes["fasta"] = tempOutNames;
+                       outputTypes["qual"] = tempOutNames;
+                       outputTypes["group"] = tempOutNames;
+                       
+                       //if the user changes the input directory command factory will send this info to us in the output parameter 
+                       string inputDir = validParameter.validFile(parameters, "inputdir", false);              
+                       if (inputDir == "not found"){   inputDir = "";          }
+                       else {
+                               string path;
+                               it = parameters.find("fasta");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["fasta"] = inputDir + it->second;            }
+                               }
+                               
+                               it = parameters.find("oligos");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["oligos"] = inputDir + it->second;           }
+                               }
+                               
+                               it = parameters.find("qfile");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["qfile"] = inputDir + it->second;            }
+                               }
+                               
+                               it = parameters.find("group");
+                               //user has given a template file
+                               if(it != parameters.end()){ 
+                                       path = m->hasPath(it->second);
+                                       //if the user has not given a path then, add inputdir. else leave path alone.
+                                       if (path == "") {       parameters["group"] = inputDir + it->second;            }
+                               }
+                       }
+
+                       
                        //check for required parameters
                        fastaFile = validParameter.validFile(parameters, "fasta", true);
-                       if (fastaFile == "not found") { mothurOut("fasta is a required parameter for the screen.seqs command."); mothurOutEndLine(); abort = true; }
+                       if (fastaFile == "not found") { m->mothurOut("fasta is a required parameter for the trim.seqs command."); m->mothurOutEndLine(); abort = true; }
                        else if (fastaFile == "not open") { abort = true; }     
+                       
+                       //if the user changes the output directory command factory will send this info to us in the output parameter 
+                       outputDir = validParameter.validFile(parameters, "outputdir", false);           if (outputDir == "not found"){  
+                               outputDir = ""; 
+                               outputDir += m->hasPath(fastaFile); //if user entered a file with a path then preserve it       
+                       }
                
-               
+                       
                        //check for optional parameter and set defaults
                        // ...at some point should added some additional type checking...
                        string temp;
                        temp = validParameter.validFile(parameters, "flip", false);
                        if (temp == "not found"){       flip = 0;       }
-                       else if(isTrue(temp))   {       flip = 1;       }
+                       else if(m->isTrue(temp))        {       flip = 1;       }
                
                        temp = validParameter.validFile(parameters, "oligos", true);
                        if (temp == "not found"){       oligoFile = "";         }
                        else if(temp == "not open"){    abort = true;   } 
                        else                                    {       oligoFile = temp;               }
                        
+                       temp = validParameter.validFile(parameters, "group", true);
+                       if (temp == "not found"){       groupfile = "";         }
+                       else if(temp == "not open"){    abort = true;   } 
+                       else                                    {       groupfile = temp;               }
+                       
                        temp = validParameter.validFile(parameters, "maxambig", false);         if (temp == "not found") { temp = "-1"; }
                        convert(temp, maxAmbig);  
 
@@ -65,62 +188,120 @@ TrimSeqsCommand::TrimSeqsCommand(string option){
                        temp = validParameter.validFile(parameters, "maxlength", false);        if (temp == "not found") { temp = "0"; }
                        convert(temp, maxLength);
                        
+                       temp = validParameter.validFile(parameters, "bdiffs", false);           if (temp == "not found") { temp = "0"; }
+                       convert(temp, bdiffs);
+                       
+                       temp = validParameter.validFile(parameters, "pdiffs", false);           if (temp == "not found") { temp = "0"; }
+                       convert(temp, pdiffs);
+                       
+                       temp = validParameter.validFile(parameters, "tdiffs", false);           if (temp == "not found") { int tempTotal = pdiffs + bdiffs;  temp = toString(tempTotal); }
+                       convert(temp, tdiffs);
+                       
+                       if(tdiffs == 0){        tdiffs = bdiffs + pdiffs;       }
+                       
                        temp = validParameter.validFile(parameters, "qfile", true);     
                        if (temp == "not found")        {       qFileName = "";         }
-                       else if(temp == "not open")     {       abort = 0;              }
+                       else if(temp == "not open")     {       abort = true;           }
                        else                                            {       qFileName = temp;       }
                        
                        temp = validParameter.validFile(parameters, "qthreshold", false);       if (temp == "not found") { temp = "0"; }
                        convert(temp, qThreshold);
+                       
+                       temp = validParameter.validFile(parameters, "qtrim", false);            if (temp == "not found") { temp = "t"; }
+                       qtrim = m->isTrue(temp);
+
+                       temp = validParameter.validFile(parameters, "rollaverage", false);      if (temp == "not found") { temp = "0"; }
+                       convert(temp, qRollAverage);
+
+                       temp = validParameter.validFile(parameters, "qwindowaverage", false);if (temp == "not found") { temp = "0"; }
+                       convert(temp, qWindowAverage);
+
+                       temp = validParameter.validFile(parameters, "qwindowsize", false);      if (temp == "not found") { temp = "50"; }
+                       convert(temp, qWindowSize);
+
+                       temp = validParameter.validFile(parameters, "qstepsize", false);        if (temp == "not found") { temp = "1"; }
+                       convert(temp, qWindowStep);
 
                        temp = validParameter.validFile(parameters, "qaverage", false);         if (temp == "not found") { temp = "0"; }
                        convert(temp, qAverage);
+
+                       temp = validParameter.validFile(parameters, "keepfirst", false);        if (temp == "not found") { temp = "0"; }
+                       convert(temp, keepFirst);
+
+                       temp = validParameter.validFile(parameters, "removelast", false);       if (temp == "not found") { temp = "0"; }
+                       convert(temp, removeLast);
                        
                        temp = validParameter.validFile(parameters, "allfiles", false);         if (temp == "not found") { temp = "F"; }
-                       allFiles = isTrue(temp);
+                       allFiles = m->isTrue(temp);
+                       
+                       temp = validParameter.validFile(parameters, "processors", false);       if (temp == "not found") { temp = "1"; }
+                       convert(temp, processors); 
+                       
+                       if ((oligoFile != "") && (groupfile != "")) {
+                               m->mothurOut("You given both a oligos file and a groupfile, only one is allowed."); m->mothurOutEndLine(); abort = true;
+                       }
+                                                                                               
                        
-                       if(allFiles && oligoFile == ""){
-                               mothurOut("You selected allfiles, but didn't enter an oligos file.  Ignoring the allfiles request."); mothurOutEndLine();
+                       if(allFiles && (oligoFile == "") && (groupfile == "")){
+                               m->mothurOut("You selected allfiles, but didn't enter an oligos or group file.  Ignoring the allfiles request."); m->mothurOutEndLine();
                        }
                        if((qAverage != 0 && qThreshold != 0) && qFileName == ""){
-                               mothurOut("You didn't provide a quality file name, quality criteria will be ignored."); mothurOutEndLine();
+                               m->mothurOut("You didn't provide a quality file name, quality criteria will be ignored."); m->mothurOutEndLine();
                                qAverage=0;
                                qThreshold=0;
                        }
                        if(!flip && oligoFile=="" && !maxLength && !minLength && (maxAmbig==-1) && !maxHomoP && qFileName == ""){               
-                               mothurOut("You didn't set any options... quiting command."); mothurOutEndLine();
+                               m->mothurOut("You didn't set any options... quiting command."); m->mothurOutEndLine();
                                abort = true;
                        }
                }
 
        }
        catch(exception& e) {
-               errorOut(e, "TrimSeqsCommand", "TrimSeqsCommand");
+               m->errorOut(e, "TrimSeqsCommand", "TrimSeqsCommand");
                exit(1);
        }
 }
+
 //**********************************************************************************************************************
 
 void TrimSeqsCommand::help(){
        try {
-               mothurOut("The trim.seqs command reads a fastaFile and creates .....\n");
-               mothurOut("The trim.seqs command parameters are fasta, flip, oligos, maxambig, maxhomop, minlength and maxlength.\n");
-               mothurOut("The fasta parameter is required.\n");
-               mothurOut("The flip parameter .... The default is 0.\n");
-               mothurOut("The oligos parameter .... The default is "".\n");
-               mothurOut("The maxambig parameter .... The default is -1.\n");
-               mothurOut("The maxhomop parameter .... The default is 0.\n");
-               mothurOut("The minlength parameter .... The default is 0.\n");
-               mothurOut("The maxlength parameter .... The default is 0.\n");
-               mothurOut("The trim.seqs command should be in the following format: \n");
-               mothurOut("trim.seqs(fasta=yourFastaFile, flip=yourFlip, oligos=yourOligos, maxambig=yourMaxambig,  \n");
-               mothurOut("maxhomop=yourMaxhomop, minlength=youMinlength, maxlength=yourMaxlength)  \n");       
-               mothurOut("Example trim.seqs(fasta=abrecovery.fasta, flip=..., oligos=..., maxambig=..., maxhomop=..., minlength=..., maxlength=...).\n");
-               mothurOut("Note: No spaces between parameter labels (i.e. fasta), '=' and parameters (i.e.yourFasta).\n\n");
+               m->mothurOut("The trim.seqs command reads a fastaFile and creates 2 new fasta files, .trim.fasta and scrap.fasta, as well as group files if you provide and oligos file.\n");
+               m->mothurOut("The .trim.fasta contains sequences that meet your requirements, and the .scrap.fasta contains those which don't.\n");
+               m->mothurOut("The trim.seqs command parameters are fasta, flip, oligos, group, maxambig, maxhomop, minlength, maxlength, qfile, qthreshold, qaverage, diffs, qtrim, keepfirst, removelast and allfiles.\n");
+               m->mothurOut("The fasta parameter is required.\n");
+               m->mothurOut("The group parameter allows you to enter a group file for your fasta file.\n");
+               m->mothurOut("The flip parameter will output the reverse compliment of your trimmed sequence. The default is false.\n");
+               m->mothurOut("The oligos parameter allows you to provide an oligos file.\n");
+               m->mothurOut("The maxambig parameter allows you to set the maximum number of ambigious bases allowed. The default is -1.\n");
+               m->mothurOut("The maxhomop parameter allows you to set a maximum homopolymer length. \n");
+               m->mothurOut("The minlength parameter allows you to set and minimum sequence length. \n");
+               m->mothurOut("The maxlength parameter allows you to set and maximum sequence length. \n");
+               m->mothurOut("The tdiffs parameter is used to specify the total number of differences allowed in the sequence. The default is pdiffs + bdiffs.\n");
+               m->mothurOut("The bdiffs parameter is used to specify the number of differences allowed in the barcode. The default is 0.\n");
+               m->mothurOut("The pdiffs parameter is used to specify the number of differences allowed in the primer. The default is 0.\n");
+               m->mothurOut("The qfile parameter allows you to provide a quality file.\n");
+               m->mothurOut("The qthreshold parameter allows you to set a minimum quality score allowed. \n");
+               m->mothurOut("The qaverage parameter allows you to set a minimum average quality score allowed. \n");
+               m->mothurOut("The qwindowsize parameter allows you to set a number of bases in a window. Default=50.\n");
+               m->mothurOut("The qwindowaverage parameter allows you to set a minimum average quality score allowed over a window. \n");
+               m->mothurOut("The rollaverage parameter allows you to set a minimum rolling average quality score allowed over a window. \n");
+               m->mothurOut("The qstepsize parameter allows you to set a number of bases to move the window over. Default=1.\n");
+               m->mothurOut("The allfiles parameter will create separate group and fasta file for each grouping. The default is F.\n");
+               m->mothurOut("The qtrim parameter will trim sequence from the point that they fall below the qthreshold and put it in the .trim file if set to true. The default is T.\n");
+               m->mothurOut("The keepfirst parameter trims the sequence to the first keepfirst number of bases after the barcode or primers are removed, before the sequence is checked to see if it meets the other requirements. \n");
+               m->mothurOut("The removelast removes the last removelast number of bases after the barcode or primers are removed, before the sequence is checked to see if it meets the other requirements.\n");
+               m->mothurOut("The trim.seqs command should be in the following format: \n");
+               m->mothurOut("trim.seqs(fasta=yourFastaFile, flip=yourFlip, oligos=yourOligos, maxambig=yourMaxambig,  \n");
+               m->mothurOut("maxhomop=yourMaxhomop, minlength=youMinlength, maxlength=yourMaxlength)  \n");    
+               m->mothurOut("Example trim.seqs(fasta=abrecovery.fasta, flip=..., oligos=..., maxambig=..., maxhomop=..., minlength=..., maxlength=...).\n");
+               m->mothurOut("Note: No spaces between parameter labels (i.e. fasta), '=' and parameters (i.e.yourFasta).\n");
+               m->mothurOut("For more details please check out the wiki http://www.mothur.org/wiki/Trim.seqs .\n\n");
 
        }
        catch(exception& e) {
-               errorOut(e, "TrimSeqsCommand", "help");
+               m->errorOut(e, "TrimSeqsCommand", "help");
                exit(1);
        }
 }
@@ -136,385 +317,1172 @@ int TrimSeqsCommand::execute(){
        try{
        
                if (abort == true) { return 0; }
+               
+               numFPrimers = 0;  //this needs to be initialized
+               numRPrimers = 0;
+               vector<string> fastaFileNames;
+               vector<string> qualFileNames;
+               
+               string trimSeqFile = outputDir + m->getRootName(m->getSimpleName(fastaFile)) + "trim.fasta";
+               outputNames.push_back(trimSeqFile); outputTypes["fasta"].push_back(trimSeqFile);
+               string scrapSeqFile = outputDir + m->getRootName(m->getSimpleName(fastaFile)) + "scrap.fasta";
+               outputNames.push_back(scrapSeqFile); outputTypes["fasta"].push_back(scrapSeqFile);
+               string trimQualFile = outputDir + m->getRootName(m->getSimpleName(fastaFile)) + "trim.qual";
+               string scrapQualFile = outputDir + m->getRootName(m->getSimpleName(fastaFile)) + "scrap.qual";
+               if (qFileName != "") {  outputNames.push_back(trimQualFile); outputNames.push_back(scrapQualFile);  outputTypes["qual"].push_back(trimQualFile); outputTypes["qual"].push_back(scrapQualFile); }
+               string groupFile = "";
+               if (groupfile == "") { groupFile = outputDir + m->getRootName(m->getSimpleName(fastaFile)) + "groups"; }
+               else{
+                       groupFile = outputDir + m->getRootName(m->getSimpleName(groupfile)) + "trim.groups";
+                       outputNames.push_back(groupFile); outputTypes["group"].push_back(groupFile);
+                       groupMap = new GroupMap(groupfile);
+                       groupMap->readMap();
+                       
+                       if(allFiles){
+                               for (int i = 0; i < groupMap->namesOfGroups.size(); i++) {
+                                       groupToIndex[groupMap->namesOfGroups[i]] = i;
+                                       groupVector.push_back(groupMap->namesOfGroups[i]);
+                                       fastaFileNames.push_back((outputDir + m->getRootName(m->getSimpleName(fastaFile)) +  groupMap->namesOfGroups[i] + ".fasta"));
+                                       
+                                       //we append later, so we want to clear file
+                                       ofstream outRemove;
+                                       m->openOutputFile(fastaFileNames[i], outRemove);
+                                       outRemove.close();
+                                       if(qFileName != ""){
+                                               qualFileNames.push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) +  groupMap->namesOfGroups[i] + ".qual"));
+                                               ofstream outRemove2;
+                                               m->openOutputFile(qualFileNames[i], outRemove2);
+                                               outRemove2.close();
+                                       }
+                               }
+                       }
+                       comboStarts = fastaFileNames.size()-1;
+               }
+               
+               if(oligoFile != ""){
+                       outputNames.push_back(groupFile); outputTypes["group"].push_back(groupFile);
+                       getOligos(fastaFileNames, qualFileNames);
+               }
 
-               ifstream inFASTA;
-               openInputFile(fastaFile, inFASTA);
+               vector<unsigned long int> fastaFilePos;
+               vector<unsigned long int> qFilePos;
+               
+               setLines(fastaFile, qFileName, fastaFilePos, qFilePos);
+               
+               for (int i = 0; i < (fastaFilePos.size()-1); i++) {
+                       lines.push_back(new linePair(fastaFilePos[i], fastaFilePos[(i+1)]));
+                       if (qFileName != "") {  qLines.push_back(new linePair(qFilePos[i], qFilePos[(i+1)]));  }
+               }       
+               if(qFileName == "")     {       qLines = lines; } //files with duds
+               
+               #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+                               if(processors == 1){
+                                       driverCreateTrim(fastaFile, qFileName, trimSeqFile, scrapSeqFile, trimQualFile, scrapQualFile, groupFile, fastaFileNames, qualFileNames, lines[0], qLines[0]);
+                               }else{
+                                       createProcessesCreateTrim(fastaFile, qFileName, trimSeqFile, scrapSeqFile, trimQualFile, scrapQualFile, groupFile, fastaFileNames, qualFileNames); 
+                               }       
+               #else
+                               driverCreateTrim(fastaFile, qFileName, trimSeqFile, scrapSeqFile, trimQualFile, scrapQualFile, groupFile, fastaFileNames, qualFileNames, lines[0], qLines[0]);
+               #endif
+               
+               if (m->control_pressed) {  return 0; }                  
+                       
+               set<string> blanks;
+               for(int i=0;i<fastaFileNames.size();i++){
+                       if (m->isBlank(fastaFileNames[i])) {   blanks.insert(fastaFileNames[i]);        }
+                       else if (filesToRemove.count(fastaFileNames[i]) > 0) {  remove(fastaFileNames[i].c_str()); }
+                       else {
+                               ifstream inFASTA;
+                               string seqName;
+                               m->openInputFile(fastaFileNames[i], inFASTA);
+                               ofstream outGroups;
+                               string outGroupFilename = outputDir + m->getRootName(m->getSimpleName(fastaFileNames[i])) + "groups";
+                               
+                               //if the fastafile is on the blanks list then the groups file should be as well
+                               if (blanks.count(fastaFileNames[i]) != 0) { blanks.insert(outGroupFilename); }
+                               
+                               m->openOutputFile(outGroupFilename, outGroups);
+                               outputNames.push_back(outGroupFilename); outputTypes["group"].push_back(outGroupFilename);  
+                               
+                               string thisGroup = "";
+                               if (i > comboStarts) {
+                                       map<string, int>::iterator itCombo;
+                                       for(itCombo=combos.begin();itCombo!=combos.end(); itCombo++){
+                                               if(itCombo->second == i){       thisGroup = itCombo->first;     combos.erase(itCombo);  break;  }
+                                       }
+                               }else{ thisGroup = groupVector[i]; }
+                                       
+                               while(!inFASTA.eof()){
+                                       if(inFASTA.get() == '>'){
+                                               inFASTA >> seqName;
+                                               outGroups << seqName << '\t' << thisGroup << endl;
+                                       }
+                                       while (!inFASTA.eof())  {       char c = inFASTA.get(); if (c == 10 || c == 13){        break;  }       }
+                               }
+                               outGroups.close();
+                               inFASTA.close();
+                       }
+               }
+               
+               for (set<string>::iterator itBlanks = blanks.begin(); itBlanks != blanks.end(); itBlanks++) {  remove((*(itBlanks)).c_str()); }
+               
+               blanks.clear();
+               if(qFileName != ""){
+                       for(int i=0;i<qualFileNames.size();i++){
+                               if (m->isBlank(qualFileNames[i])) {  blanks.insert(qualFileNames[i]);   }
+                               else if (filesToRemove.count(qualFileNames[i]) > 0) {  remove(qualFileNames[i].c_str()); }
+                       }
+               }
+               
+               for (set<string>::iterator itBlanks = blanks.begin(); itBlanks != blanks.end(); itBlanks++) {  remove((*(itBlanks)).c_str()); }
+               
+               if (m->control_pressed) { 
+                       for (int i = 0; i < outputNames.size(); i++) {  remove(outputNames[i].c_str()); }
+                       return 0;
+               }
+
+               m->mothurOutEndLine();
+               m->mothurOut("Output File Names: "); m->mothurOutEndLine();
+               for (int i = 0; i < outputNames.size(); i++) {  m->mothurOut(outputNames[i]); m->mothurOutEndLine();    }
+               m->mothurOutEndLine();
+               
+               return 0;       
+                       
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "execute");
+               exit(1);
+       }
+}
+               
+/**************************************************************************************/
+
+int TrimSeqsCommand::driverCreateTrim(string filename, string qFileName, string trimFile, string scrapFile, string trimQFile, string scrapQFile, string groupFile, vector<string> fastaNames, vector<string> qualNames, linePair* line, linePair* qline) {     
+               
+       try {
                
                ofstream outFASTA;
-               string trimSeqFile = getRootName(fastaFile) + "trim.fasta";
-               openOutputFile(trimSeqFile, outFASTA);
+               m->openOutputFile(trimFile, outFASTA);
+               
+               ofstream scrapFASTA;
+               m->openOutputFile(scrapFile, scrapFASTA);
+               
+               ofstream outQual;
+               ofstream scrapQual;
+               if(qFileName != ""){
+                       m->openOutputFile(trimQFile, outQual);
+                       m->openOutputFile(scrapQFile, scrapQual);
+               }
                
                ofstream outGroups;
-               vector<ofstream*> fastaFileNames;
-               if(oligoFile != ""){
-                       string groupFile = getRootName(fastaFile) + "groups"; 
-                       openOutputFile(groupFile, outGroups);
-                       getOligos(fastaFileNames);
+               
+               if (oligoFile != "") {          
+                       m->openOutputFile(groupFile, outGroups);   
                }
                
-               ofstream scrapFASTA;
-               string scrapSeqFile = getRootName(fastaFile) + "scrap.fasta";
-               openOutputFile(scrapSeqFile, scrapFASTA);
+               ifstream inFASTA;
+               m->openInputFile(filename, inFASTA);
+               inFASTA.seekg(line->start);
                
                ifstream qFile;
-               if(qFileName != "")     {       openInputFile(qFileName, qFile);        }
+               if(qFileName != "")     {       m->openInputFile(qFileName, qFile);     qFile.seekg(qline->start);  }
                
-               bool success;
                
-               while(!inFASTA.eof()){
-                       Sequence currSeq(inFASTA);
-                       string origSeq = currSeq.getUnaligned();
-                       int group;
-                       string trashCode = "";
+               for (int i = 0; i < fastaNames.size(); i++) { //clears old file
+                       ofstream temp;
+                       m->openOutputFile(fastaNames[i], temp);
+                       temp.close();
+               }
+               for (int i = 0; i < qualNames.size(); i++) { //clears old file
+                       ofstream temp;
+                       m->openOutputFile(qualNames[i], temp);
+                       temp.close();
+               }
+               
                        
-                       if(qFileName != ""){
-                               if(qThreshold != 0)             {       success = stripQualThreshold(currSeq, qFile);   }
-                               else if(qAverage != 0)  {       success = cullQualAverage(currSeq, qFile);              }
-                               if(!success)                    {       trashCode += 'q';                                                               }
-                               qFile.close();
+               bool done = false;
+               int count = 0;
+       
+               while (!done) {
+                               
+                       if (m->control_pressed) { 
+                               inFASTA.close(); outFASTA.close(); scrapFASTA.close();
+                               if (oligoFile != "") {   outGroups.close();   }
+
+                               if(qFileName != ""){
+                                       qFile.close();
+                               }
+                               for (int i = 0; i < outputNames.size(); i++) {  remove(outputNames[i].c_str()); }
+
+                               return 0;
                        }
-                       if(barcodes.size() != 0){
-                               success = stripBarcode(currSeq, group);
-                               if(!success){   trashCode += 'b';       }
+                       
+                       int success = 1;
+                       
+
+                       Sequence currSeq(inFASTA); m->gobble(inFASTA);
+
+                       QualityScores currQual;
+                       if(qFileName != ""){
+                               currQual = QualityScores(qFile, currSeq.getNumBases());  m->gobble(qFile);
                        }
-                       if(numFPrimers != 0){
-                               success = stripForward(currSeq);
-                               if(!success){   trashCode += 'f';       }
+                       
+                       string origSeq = currSeq.getUnaligned();
+                       if (origSeq != "") {
+                               int groupBar, groupPrime;
+                               string trashCode = "";
+                               int currentSeqsDiffs = 0;
+
+                               if(barcodes.size() != 0){
+                                       success = stripBarcode(currSeq, currQual, groupBar);
+                                       if(success > bdiffs)            {       trashCode += 'b';       }
+                                       else{ currentSeqsDiffs += success;  }
+                               }
+                               
+                               if(numFPrimers != 0){
+                                       success = stripForward(currSeq, currQual, groupPrime);
+                                       if(success > pdiffs)            {       trashCode += 'f';       }
+                                       else{ currentSeqsDiffs += success;  }
+                               }
+                               
+                               if (currentSeqsDiffs > tdiffs)  {       trashCode += 't';   }
+                               
+                               if(numRPrimers != 0){
+                                       success = stripReverse(currSeq, currQual);
+                                       if(!success)                            {       trashCode += 'r';       }
+                               }
+
+                               if(keepFirst != 0){
+                                       success = keepFirstTrim(currSeq, currQual);
+                               }
+                               
+                               if(removeLast != 0){
+                                       success = removeLastTrim(currSeq, currQual);
+                                       if(!success)                            {       trashCode += 'l';       }
+                               }
+
+                               
+                               if(qFileName != ""){
+                                       int origLength = currSeq.getNumBases();
+                                       
+                                       if(qThreshold != 0)                     {       success = currQual.stripQualThreshold(currSeq, qThreshold);                     }
+                                       else if(qAverage != 0)          {       success = currQual.cullQualAverage(currSeq, qAverage);                          }
+                                       else if(qRollAverage != 0)      {       success = currQual.stripQualRollingAverage(currSeq, qRollAverage);      }
+                                       else if(qWindowAverage != 0){   success = currQual.stripQualWindowAverage(currSeq, qWindowStep, qWindowSize, qWindowAverage);   }
+                                       else                                            {       success = 1;                            }
+                                       
+                                       //you don't want to trim, if it fails above then scrap it
+                                       if ((!qtrim) && (origLength != currSeq.getNumBases())) {  success = 0; }
+                                       
+                                       if(!success)                            {       trashCode += 'q';       }
+                               }                               
+               
+                               if(minLength > 0 || maxLength > 0){
+                                       success = cullLength(currSeq);
+                                       if(!success)                            {       trashCode += 'l';       }
+                               }
+                               if(maxHomoP > 0){
+                                       success = cullHomoP(currSeq);
+                                       if(!success)                            {       trashCode += 'h';       }
+                               }
+                               if(maxAmbig != -1){
+                                       success = cullAmbigs(currSeq);
+                                       if(!success)                            {       trashCode += 'n';       }
+                               }
+                               
+                               if(flip){               // should go last                       
+                                       currSeq.reverseComplement();
+                                       currQual.flipQScores(); 
+                               }
+                               
+                               if(trashCode.length() == 0){
+                                       currSeq.setAligned(currSeq.getUnaligned());
+                                       currSeq.printSequence(outFASTA);
+                                       currQual.printQScores(outQual);
+                                       
+                                       if(barcodes.size() != 0){
+                                               string thisGroup = groupVector[groupBar];
+                                               int indexToFastaFile = groupBar;
+                                               if (primers.size() != 0){
+                                                       //does this primer have a group
+                                                       if (groupVector[groupPrime] != "") {  
+                                                               thisGroup += "." + groupVector[groupPrime]; 
+                                                               indexToFastaFile = combos[thisGroup];
+                                                       }
+                                               }
+                                               outGroups << currSeq.getName() << '\t' << thisGroup << endl;
+                                               if(allFiles){
+                                                       ofstream outTemp;
+                                                       m->openOutputFileAppend(fastaNames[indexToFastaFile], outTemp);
+                                                       //currSeq.printSequence(*fastaFileNames[indexToFastaFile]);
+                                                       currSeq.printSequence(outTemp);
+                                                       outTemp.close();
+                                                       
+                                                       if(qFileName != ""){
+                                                               //currQual.printQScores(*qualFileNames[indexToFastaFile]);
+                                                               ofstream outTemp2;
+                                                               m->openOutputFileAppend(qualNames[indexToFastaFile], outTemp2);
+                                                               currQual.printQScores(outTemp2);
+                                                               outTemp2.close();                                                       
+                                                       }
+                                               }
+                                       }
+                                       
+                                       if (groupfile != "") {
+                                               string thisGroup = groupMap->getGroup(currSeq.getName());
+                                               
+                                               if (thisGroup != "not found") {
+                                                       outGroups << currSeq.getName() << '\t' << thisGroup << endl;
+                                                       if (allFiles) {
+                                                               ofstream outTemp;
+                                                               m->openOutputFileAppend(fastaNames[groupToIndex[thisGroup]], outTemp);
+                                                               currSeq.printSequence(outTemp);
+                                                               outTemp.close();
+                                                               if(qFileName != ""){
+                                                                       ofstream outTemp2;
+                                                                       m->openOutputFileAppend(qualNames[groupToIndex[thisGroup]], outTemp2);
+                                                                       currQual.printQScores(outTemp2);
+                                                                       outTemp2.close();                                                       
+                                                               }
+                                                       }
+                                               }else{
+                                                       m->mothurOut(currSeq.getName() + " is not in your groupfile, adding to group XXX."); m->mothurOutEndLine();
+                                                       outGroups << currSeq.getName() << '\t' << "XXX" << endl;
+                                                       if (allFiles) {  
+                                                               m->mothurOut("[ERROR]: " + currSeq.getName() + " will not be added to any .group.fasta or .group.qual file."); m->mothurOutEndLine();
+                                                       }
+                                               }
+                                       }
+                               }
+                               else{
+                                       currSeq.setName(currSeq.getName() + '|' + trashCode);
+                                       currSeq.setUnaligned(origSeq);
+                                       currSeq.setAligned(origSeq);
+                                       currSeq.printSequence(scrapFASTA);
+                                       currQual.printQScores(scrapQual);
+                               }
+                               count++;
                        }
-                       if(numRPrimers != 0){
-                               success = stripReverse(currSeq);
-                               if(!success){   trashCode += 'r';       }
+                       
+                       #if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+                               unsigned long int pos = inFASTA.tellg();
+                               if ((pos == -1) || (pos >= line->end)) { break; }
+                       #else
+                               if (inFASTA.eof()) { break; }
+                       #endif
+                               
+                       //report progress
+                       if((count) % 1000 == 0){        m->mothurOut(toString(count)); m->mothurOutEndLine();           }
+                       
+               }
+               //report progress
+               if((count) % 1000 != 0){        m->mothurOut(toString(count)); m->mothurOutEndLine();           }
+
+               
+               inFASTA.close();
+               outFASTA.close();
+               scrapFASTA.close();
+               if (oligoFile != "") {   outGroups.close();   }
+               if(qFileName != "")     {       qFile.close();  scrapQual.close(); outQual.close();     }
+               
+               return count;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "driverCreateTrim");
+               exit(1);
+       }
+}
+
+/**************************************************************************************************/
+
+int TrimSeqsCommand::createProcessesCreateTrim(string filename, string qFileName, string trimFile, string scrapFile, string trimQFile, string scrapQFile, string groupFile, vector<string> fastaNames, vector<string> qualNames) {
+       try {
+#if defined (__APPLE__) || (__MACH__) || (linux) || (__linux)
+               int process = 1;
+               int exitCommand = 1;
+               processIDS.clear();
+               
+               //loop through and create all the processes you want
+               while (process != processors) {
+                       int pid = fork();
+                       
+                       if (pid > 0) {
+                               processIDS.push_back(pid);  //create map from line number to pid so you can append files in correct order later
+                               process++;
+                       }else if (pid == 0){
+                               for (int i = 0; i < fastaNames.size(); i++) {
+                                       fastaNames[i] = (fastaNames[i] + toString(getpid()) + ".temp");
+                                       //clear old file if it exists
+                                       ofstream temp;
+                                       m->openOutputFile(fastaNames[i], temp);
+                                       temp.close();
+                                       if(qFileName != ""){
+                                               qualNames[i] = (qualNames[i] + toString(getpid()) + ".temp");
+                                               //clear old file if it exists
+                                               ofstream temp2;
+                                               m->openOutputFile(qualNames[i], temp2);
+                                               temp2.close();
+                                       }
+                               }
+                               
+                               driverCreateTrim(filename, qFileName, (trimFile + toString(getpid()) + ".temp"), (scrapFile + toString(getpid()) + ".temp"), (trimQFile + toString(getpid()) + ".temp"), (scrapQFile + toString(getpid()) + ".temp"), (groupFile + toString(getpid()) + ".temp"), fastaNames, qualNames, lines[process], qLines[process]);
+                               exit(0);
+                       }else { 
+                               m->mothurOut("[ERROR]: unable to spawn the necessary processes."); m->mothurOutEndLine(); 
+                               for (int i = 0; i < processIDS.size(); i++) { kill (processIDS[i], SIGINT); }
+                               exit(0);
                        }
-                       if(minLength > 0 || maxLength > 0){
-                               success = cullLength(currSeq);
-                               if(!success){   trashCode += 'l';       }
+               }
+               
+               //parent do my part
+               for (int i = 0; i < fastaNames.size(); i++) {
+                       //clear old file if it exists
+                       ofstream temp;
+                       m->openOutputFile(fastaNames[i], temp);
+                       temp.close();
+                       if(qFileName != ""){
+                               //clear old file if it exists
+                               ofstream temp2;
+                               m->openOutputFile(qualNames[i], temp2);
+                               temp2.close();
                        }
-                       if(maxHomoP > 0){
-                               success = cullHomoP(currSeq);
-                               if(!success){   trashCode += 'h';       }
+               }
+               
+               driverCreateTrim(filename, qFileName, trimFile, scrapFile, trimQFile, scrapQFile, groupFile, fastaNames, qualNames, lines[0], qLines[0]);
+               
+               
+               //force parent to wait until all the processes are done
+               for (int i=0;i<processIDS.size();i++) { 
+                       int temp = processIDS[i];
+                       wait(&temp);
+               }
+               
+               //append files
+               for(int i=0;i<processIDS.size();i++){
+                       
+                       m->mothurOut("Appending files from process " + toString(processIDS[i])); m->mothurOutEndLine();
+                       
+                       m->appendFiles((trimFile + toString(processIDS[i]) + ".temp"), trimFile);
+                       remove((trimFile + toString(processIDS[i]) + ".temp").c_str());
+                       m->appendFiles((scrapFile + toString(processIDS[i]) + ".temp"), scrapFile);
+                       remove((scrapFile + toString(processIDS[i]) + ".temp").c_str());
+                       
+                       m->mothurOut("Done with fasta files"); m->mothurOutEndLine();
+                       
+                       if(qFileName != ""){
+                               m->appendFiles((trimQFile + toString(processIDS[i]) + ".temp"), trimQFile);
+                               remove((trimQFile + toString(processIDS[i]) + ".temp").c_str());
+                               m->appendFiles((scrapQFile + toString(processIDS[i]) + ".temp"), scrapQFile);
+                               remove((scrapQFile + toString(processIDS[i]) + ".temp").c_str());
+                       
+                               m->mothurOut("Done with quality files"); m->mothurOutEndLine();
                        }
-                       if(maxAmbig != -1){
-                               success = cullAmbigs(currSeq);
-                               if(!success){   trashCode += 'n';       }
+                       
+                       m->appendFiles((groupFile + toString(processIDS[i]) + ".temp"), groupFile);
+                       remove((groupFile + toString(processIDS[i]) + ".temp").c_str());
+                       
+                       m->mothurOut("Done with group file"); m->mothurOutEndLine();
+                       
+                       for (int j = 0; j < fastaNames.size(); j++) {
+                               m->appendFiles((fastaNames[j] + toString(processIDS[i]) + ".temp"), fastaNames[j]);
+                               remove((fastaNames[j] + toString(processIDS[i]) + ".temp").c_str());
                        }
                        
-                       if(flip){       currSeq.reverseComplement();    }               // should go last                       
+                       if(qFileName != ""){
+                               for (int j = 0; j < qualNames.size(); j++) {
+                                       m->appendFiles((qualNames[j] + toString(processIDS[i]) + ".temp"), qualNames[j]);
+                                       remove((qualNames[j] + toString(processIDS[i]) + ".temp").c_str());
+                               }
+                       }
                        
-                       if(trashCode.length() == 0){
-                               currSeq.printSequence(outFASTA);
-                               if(barcodes.size() != 0){
-                                       outGroups << currSeq.getName() << '\t' << groupVector[group] << endl;
+                       if (allFiles) { m->mothurOut("Done with allfiles"); m->mothurOutEndLine(); }
+               }
+       
+               return exitCommand;
+#endif         
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "createProcessesCreateTrim");
+               exit(1);
+       }
+}
+
+/**************************************************************************************************/
+
+int TrimSeqsCommand::setLines(string filename, string qfilename, vector<unsigned long int>& fastaFilePos, vector<unsigned long int>& qfileFilePos) {
+       try {
+               
+               //set file positions for fasta file
+               fastaFilePos = m->divideFile(filename, processors);
+               
+               if (qfilename == "") { return processors; }
+               
+               //get name of first sequence in each chunk
+               map<string, int> firstSeqNames;
+               for (int i = 0; i < (fastaFilePos.size()-1); i++) {
+                       ifstream in;
+                       m->openInputFile(filename, in);
+                       in.seekg(fastaFilePos[i]);
+               
+                       Sequence temp(in); 
+                       firstSeqNames[temp.getName()] = i;
+               
+                       in.close();
+               }
+                               
+               //seach for filePos of each first name in the qfile and save in qfileFilePos
+               ifstream inQual;
+               m->openInputFile(qfilename, inQual);
+               
+               string input;
+               while(!inQual.eof()){   
+                       input = m->getline(inQual);
+
+                       if (input.length() != 0) {
+                               if(input[0] == '>'){ //this is a sequence name line
+                                       istringstream nameStream(input);
+                                       
+                                       string sname = "";  nameStream >> sname;
+                                       sname = sname.substr(1);
                                        
-                                       if(allFiles){
-                                               currSeq.printSequence(*fastaFileNames[group]);                                  
+                                       map<string, int>::iterator it = firstSeqNames.find(sname);
+                                       
+                                       if(it != firstSeqNames.end()) { //this is the start of a new chunk
+                                               unsigned long int pos = inQual.tellg(); 
+                                               qfileFilePos.push_back(pos - input.length() - 1);       
+                                               firstSeqNames.erase(it);
                                        }
                                }
                        }
+                       
+                       if (firstSeqNames.size() == 0) { break; }
+               }
+               inQual.close();
+               
+               
+               if (firstSeqNames.size() != 0) { 
+                       for (map<string, int>::iterator it = firstSeqNames.begin(); it != firstSeqNames.end(); it++) {
+                               m->mothurOut(it->first + " is in your fasta file and not in your quality file, not using quality file."); m->mothurOutEndLine();
+                       }
+                       qFileName = "";
+                       return processors;
+               }
+
+               //get last file position of qfile
+               FILE * pFile;
+               unsigned long int size;
+               
+               //get num bytes in file
+               pFile = fopen (qfilename.c_str(),"rb");
+               if (pFile==NULL) perror ("Error opening file");
+               else{
+                       fseek (pFile, 0, SEEK_END);
+                       size=ftell (pFile);
+                       fclose (pFile);
+               }
+               
+               qfileFilePos.push_back(size);
+               
+               return processors;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "setLines");
+               exit(1);
+       }
+}
+
+//***************************************************************************************************************
+
+void TrimSeqsCommand::getOligos(vector<string>& outFASTAVec, vector<string>& outQualVec){
+       try {
+               ifstream inOligos;
+               m->openInputFile(oligoFile, inOligos);
+               
+               ofstream test;
+               
+               string type, oligo, group;
+               int index=0;
+               //int indexPrimer = 0;
+               
+               while(!inOligos.eof()){
+                       inOligos >> type; m->gobble(inOligos);
+                                       
+                       if(type[0] == '#'){
+                               while (!inOligos.eof()) {       char c = inOligos.get(); if (c == 10 || c == 13){       break;  }       } // get rest of line if there's any crap there
+                       }
                        else{
-                               currSeq.setName(currSeq.getName() + '|' + trashCode);
-                               currSeq.setUnaligned(origSeq);
-                               currSeq.printSequence(scrapFASTA);
+                               //make type case insensitive
+                               for(int i=0;i<type.length();i++){       type[i] = toupper(type[i]);  }
+                               
+                               inOligos >> oligo;
+                               
+                               for(int i=0;i<oligo.length();i++){
+                                       oligo[i] = toupper(oligo[i]);
+                                       if(oligo[i] == 'U')     {       oligo[i] = 'T'; }
+                               }
+                               
+                               if(type == "FORWARD"){
+                                       group = "";
+                                       
+                                       // get rest of line in case there is a primer name
+                                       while (!inOligos.eof()) {       
+                                               char c = inOligos.get(); 
+                                               if (c == 10 || c == 13){        break;  }
+                                               else if (c == 32 || c == 9){;} //space or tab
+                                               else {  group += c;  }
+                                       } 
+                                       
+                                       //check for repeat barcodes
+                                       map<string, int>::iterator itPrime = primers.find(oligo);
+                                       if (itPrime != primers.end()) { m->mothurOut("primer " + oligo + " is in your oligos file already."); m->mothurOutEndLine();  }
+                                       
+                                               primers[oligo]=index; index++;
+                                               groupVector.push_back(group);
+                                       
+                                               if(allFiles){
+                                                       outFASTAVec.push_back((outputDir + m->getRootName(m->getSimpleName(fastaFile)) + group + ".fasta"));
+                                                       if(qFileName != ""){
+                                                               outQualVec.push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + group + ".qual"));
+                                                       }
+                                                       if (group == "") { //if there is not a group for this primer, then this file will not get written to, but we add it to keep the indexes correct
+                                                               filesToRemove.insert((outputDir + m->getRootName(m->getSimpleName(fastaFile)) + group + ".fasta"));
+                                                               if(qFileName != ""){
+                                                                       filesToRemove.insert((outputDir + m->getRootName(m->getSimpleName(qFileName)) + group + ".qual"));
+                                                               }
+                                                       }else {
+                                                               outputNames.push_back((outputDir + m->getRootName(m->getSimpleName(fastaFile)) + group + ".fasta"));
+                                                               outputTypes["fasta"].push_back((outputDir + m->getRootName(m->getSimpleName(fastaFile)) + group + ".fasta"));
+                                                               if(qFileName != ""){
+                                                                       outputNames.push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + group + ".qual"));
+                                                                       outputTypes["qual"].push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + group + ".qual"));
+                                                               }                                                       
+                                                       }
+                                               }
+                                       
+                               }
+                               else if(type == "REVERSE"){
+                                       Sequence oligoRC("reverse", oligo);
+                                       oligoRC.reverseComplement();
+                                       revPrimer.push_back(oligoRC.getUnaligned());
+                               }
+                               else if(type == "BARCODE"){
+                                       inOligos >> group;
+                                       
+                                       //check for repeat barcodes
+                                       map<string, int>::iterator itBar = barcodes.find(oligo);
+                                       if (itBar != barcodes.end()) { m->mothurOut("barcode " + oligo + " is in your oligos file already."); m->mothurOutEndLine();  }
+                                       
+                                               barcodes[oligo]=index; index++;
+                                               groupVector.push_back(group);
+                                               
+                                               if(allFiles){
+                                                       outputNames.push_back((outputDir + m->getRootName(m->getSimpleName(fastaFile)) + group + ".fasta"));
+                                                       outputNames.push_back((outputDir + m->getRootName(m->getSimpleName(fastaFile)) + group + ".fasta"));
+                                                       outFASTAVec.push_back((outputDir + m->getRootName(m->getSimpleName(fastaFile)) + group + ".fasta"));
+                                                       if(qFileName != ""){
+                                                               outQualVec.push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + group + ".qual"));
+                                                               outputNames.push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + group + ".qual"));
+                                                               outputTypes["qual"].push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + group + ".qual"));
+                                                       }                                                       
+                                               }
+                                       
+                               }else{  m->mothurOut(type + " is not recognized as a valid type. Choices are forward, reverse, and barcode. Ignoring " + oligo + "."); m->mothurOutEndLine();  }
                        }
-                       gobble(inFASTA);
+                       m->gobble(inOligos);
                }
-               inFASTA.close();
-               outFASTA.close();
-               scrapFASTA.close();
-               outGroups.close();
                
-               for(int i=0;i<fastaFileNames.size();i++){
-                       fastaFileNames[i]->close();
-                       delete fastaFileNames[i];
-               }               
+               inOligos.close();
                
-               for(int i=0;i<fastaFileNames.size();i++){
-                       string seqName;
-                       openInputFile(getRootName(fastaFile) + groupVector[i] + ".fasta", inFASTA);
-                       ofstream outGroups;
-                       openOutputFile(getRootName(fastaFile) + groupVector[i] + ".groups", outGroups);
-                       
-                       while(!inFASTA.eof()){
-                               if(inFASTA.get() == '>'){
-                                       inFASTA >> seqName;
-                                       outGroups << seqName << '\t' << groupVector[i] << endl;
+               //add in potential combos
+               if(allFiles){
+                       comboStarts = outFASTAVec.size()-1;
+                       for (map<string, int>::iterator itBar = barcodes.begin(); itBar != barcodes.end(); itBar++) {
+                               for (map<string, int>::iterator itPrime = primers.begin(); itPrime != primers.end(); itPrime++) {
+                                       if (groupVector[itPrime->second] != "") { //there is a group for this primer
+                                               outputNames.push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + groupVector[itBar->second] + "." + groupVector[itPrime->second] + ".fasta"));
+                                               outputTypes["fasta"].push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + groupVector[itBar->second] + "." + groupVector[itPrime->second] + ".fasta"));
+                                               outFASTAVec.push_back((outputDir + m->getRootName(m->getSimpleName(fastaFile)) + groupVector[itBar->second] + "." + groupVector[itPrime->second] + ".fasta"));
+                                               combos[(groupVector[itBar->second] + "." + groupVector[itPrime->second])] = outFASTAVec.size()-1;
+                                               
+                                               if(qFileName != ""){
+                                                       outQualVec.push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + groupVector[itBar->second] + "." + groupVector[itPrime->second] + ".qual"));
+                                                       outputNames.push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + groupVector[itBar->second] + "." + groupVector[itPrime->second] + ".qual"));
+                                                       outputTypes["qual"].push_back((outputDir + m->getRootName(m->getSimpleName(qFileName)) + groupVector[itBar->second] + "." + groupVector[itPrime->second] + ".qual"));
+                                               }
+                                       }
                                }
-                               while (!inFASTA.eof())  {       char c = inFASTA.get(); if (c == 10 || c == 13){        break;  }       }
                        }
-                       outGroups.close();
-                       inFASTA.close();
                }
                
+               numFPrimers = primers.size();
+               numRPrimers = revPrimer.size();
                
-               return 0;               
        }
        catch(exception& e) {
-               errorOut(e, "TrimSeqsCommand", "execute");
+               m->errorOut(e, "TrimSeqsCommand", "getOligos");
                exit(1);
        }
 }
-
 //***************************************************************************************************************
 
-void TrimSeqsCommand::getOligos(vector<ofstream*>& outFASTAVec){
-       
-       ifstream inOligos;
-       openInputFile(oligoFile, inOligos);
+int TrimSeqsCommand::stripBarcode(Sequence& seq, QualityScores& qual, int& group){
+       try {
+               
+               string rawSequence = seq.getUnaligned();
+               int success = bdiffs + 1;       //guilty until proven innocent
+               
+               //can you find the barcode
+               for(map<string,int>::iterator it=barcodes.begin();it!=barcodes.end();it++){
+                       string oligo = it->first;
+                       if(rawSequence.length() < oligo.length()){      //let's just assume that the barcodes are the same length
+                               success = bdiffs + 10;                                  //if the sequence is shorter than the barcode then bail out
+                               break;  
+                       }
+                       
+                       if(compareDNASeq(oligo, rawSequence.substr(0,oligo.length()))){
+                               group = it->second;
+                               seq.setUnaligned(rawSequence.substr(oligo.length()));
+                               
+                               if(qual.getName() != ""){
+                                       qual.trimQScores(oligo.length(), -1);
+                               }
+                               
+                               success = 0;
+                               break;
+                       }
+               }
+               
+               //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;
 
-       ofstream test;
-       
-       string type, oligo, group;
-       int index=0;
+                       int maxLength = 0;
 
-       while(!inOligos.eof()){
-               inOligos >> type;
+                       Alignment* alignment;
+                       if (barcodes.size() > 0) {
+                               map<string,int>::iterator it=barcodes.begin();
 
-               if(type[0] == '#'){
-                       while (!inOligos.eof()) {       char c = inOligos.get(); if (c == 10 || c == 13){       break;  }       } // get rest of line if there's any crap there
-               }
-               else{
-                       inOligos >> oligo;
+                               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; } 
                        
-                       for(int i=0;i<oligo.length();i++){
-                               oligo[i] = toupper(oligo[i]);
-                               if(oligo[i] == 'U')     {       oligo[i] = 'T'; }
-                       }
+                       //can you find the barcode
+                       int minDiff = 1e6;
+                       int minCount = 1;
+                       int minGroup = -1;
+                       int minPos = 0;
                        
-                       if(type == "forward"){
-                               forPrimer.push_back(oligo);
-                       }
-                       else if(type == "reverse"){
-                               revPrimer.push_back(oligo);
+                       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 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++;
+                               }
+
                        }
-                       else if(type == "barcode"){
-                               inOligos >> group;
-                               barcodes[oligo]=index++;
-                               groupVector.push_back(group);
-                                       
-                               if(allFiles){
-                                       outFASTAVec.push_back(new ofstream((getRootName(fastaFile) + group + ".fasta").c_str(), ios::ate));
+
+                       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;
+               
+               return success;
+               
        }
-       
-       inOligos.close();
-       
-       numFPrimers = forPrimer.size();
-       numRPrimers = revPrimer.size();
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "stripBarcode");
+               exit(1);
+       }
+
 }
 
 //***************************************************************************************************************
 
-bool TrimSeqsCommand::stripBarcode(Sequence& seq, int& group){
-       
-       string rawSequence = seq.getUnaligned();
-       bool success = 0;       //guilty until proven innocent
-       
-       for(map<string,int>::iterator it=barcodes.begin();it!=barcodes.end();it++){
-               string oligo = it->first;
-               if(rawSequence.length() < oligo.length()){      //let's just assume that the barcodes are the same length
-                       success = 0;
-                       break;
+int TrimSeqsCommand::stripForward(Sequence& seq, QualityScores& qual, int& group){
+       try {
+               string rawSequence = seq.getUnaligned();
+               int success = pdiffs + 1;       //guilty until proven innocent
+               
+               //can you find the primer
+               for(map<string,int>::iterator it=primers.begin();it!=primers.end();it++){
+                       string oligo = it->first;
+                       if(rawSequence.length() < oligo.length()){      //let's just assume that the primers are the same length
+                               success = pdiffs + 10;                                  //if the sequence is shorter than the barcode then bail out
+                               break;  
+                       }
+                       
+                       if(compareDNASeq(oligo, rawSequence.substr(0,oligo.length()))){
+                               group = it->second;
+                               seq.setUnaligned(rawSequence.substr(oligo.length()));
+                               if(qual.getName() != ""){
+                                       qual.trimQScores(oligo.length(), -1);
+                               }
+                               success = 0;
+                               break;
+                       }
                }
+
+               //if you found the barcode or if you don't want to allow for diffs
+//             cout << success;
+               if ((pdiffs == 0) || (success == 0)) { return success;  }
                
-               if(compareDNASeq(oligo, rawSequence.substr(0,oligo.length()))){
-                       group = it->second;
-                       seq.setUnaligned(rawSequence.substr(oligo.length()));
-                       success = 1;
-                       break;
+               else { //try aligning and see if you can find it
+//                     cout << endl;
+
+                       int maxLength = 0;
+
+                       Alignment* alignment;
+                       if (primers.size() > 0) {
+                               map<string,int>::iterator it=primers.begin();
+
+                               for(it;it!=primers.end();it++){
+                                       if(it->first.length() > maxLength){
+                                               maxLength = it->first.length();
+                                       }
+                               }
+                               alignment = new NeedlemanOverlap(-1.0, 1.0, -1.0, (maxLength+pdiffs+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=primers.begin();it!=primers.end();it++){
+                               string oligo = it->first;
+//                             int length = oligo.length();
+                               
+                               if(rawSequence.length() < maxLength){   
+                                       success = pdiffs + 100;
+                                       break;
+                               }
+                               
+                               //use needleman to align first barcode.length()+numdiffs of sequence to each barcode
+                               alignment->align(oligo, rawSequence.substr(0,oligo.length()+pdiffs));
+                               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 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 > pdiffs)    {       success = minDiff;              }       //no good matches
+                       else if(minCount > 1)   {       success = pdiffs + 10;  }       //can't tell the difference between multiple primers
+                       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;  }
+                       
                }
+               
+               return success;
+
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "stripForward");
+               exit(1);
        }
-       return success;
-       
 }
 
 //***************************************************************************************************************
 
-bool TrimSeqsCommand::stripForward(Sequence& seq){
-       
-       string rawSequence = seq.getUnaligned();
-       bool success = 0;       //guilty until proven innocent
-       
-       for(int i=0;i<numFPrimers;i++){
-               string oligo = forPrimer[i];
+bool TrimSeqsCommand::stripReverse(Sequence& seq, QualityScores& qual){
+       try {
+               string rawSequence = seq.getUnaligned();
+               bool success = 0;       //guilty until proven innocent
                
-               if(rawSequence.length() < oligo.length()){
-                       success = 0;
-                       break;
-               }
+               for(int i=0;i<numRPrimers;i++){
+                       string oligo = revPrimer[i];
+                       
+                       if(rawSequence.length() < oligo.length()){
+                               success = 0;
+                               break;
+                       }
+                       
+                       if(compareDNASeq(oligo, rawSequence.substr(rawSequence.length()-oligo.length(),oligo.length()))){
+                               seq.setUnaligned(rawSequence.substr(0,rawSequence.length()-oligo.length()));
+                               if(qual.getName() != ""){
+                                       qual.trimQScores(-1, rawSequence.length()-oligo.length());
+                               }
+                               success = 1;
+                               break;
+                       }
+               }       
+               return success;
+               
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "stripReverse");
+               exit(1);
+       }
+}
 
-               if(compareDNASeq(oligo, rawSequence.substr(0,oligo.length()))){
-                       seq.setUnaligned(rawSequence.substr(oligo.length()));
-                       success = 1;
-                       break;
+//***************************************************************************************************************
+
+bool TrimSeqsCommand::keepFirstTrim(Sequence& sequence, QualityScores& qscores){
+       try {
+               bool success = 1;
+               if(qscores.getName() != ""){
+                       qscores.trimQScores(-1, keepFirst);
                }
+               sequence.trim(keepFirst);
+               return success;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "keepFirstTrim", "countDiffs");
+               exit(1);
        }
        
-       return success;
-       
-}
+}      
 
 //***************************************************************************************************************
 
-bool TrimSeqsCommand::stripReverse(Sequence& seq){
-       
-       string rawSequence = seq.getUnaligned();
-       bool success = 0;       //guilty until proven innocent
-       
-       for(int i=0;i<numRPrimers;i++){
-               string oligo = revPrimer[i];
+bool TrimSeqsCommand::removeLastTrim(Sequence& sequence, QualityScores& qscores){
+       try {
+               bool success = 0;
                
-               if(rawSequence.length() < oligo.length()){
-                       success = 0;
-                       break;
-               }
+               int length = sequence.getNumBases() - removeLast;
                
-               if(compareDNASeq(oligo, rawSequence.substr(rawSequence.length()-oligo.length(),oligo.length()))){
-                       seq.setUnaligned(rawSequence.substr(rawSequence.length()-oligo.length()));
+               if(length > 0){
+                       if(qscores.getName() != ""){
+                               qscores.trimQScores(-1, length);
+                       }
+                       sequence.trim(length);
                        success = 1;
-                       break;
                }
-       }       
-       return success;
+               else{
+                       success = 0;
+               }
+
+               return success;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "removeLastTrim", "countDiffs");
+               exit(1);
+       }
        
-}
+}      
 
 //***************************************************************************************************************
 
 bool TrimSeqsCommand::cullLength(Sequence& seq){
+       try {
        
-       int length = seq.getNumBases();
-       bool success = 0;       //guilty until proven innocent
-       
-       if(length >= minLength && maxLength == 0)                       {       success = 1;    }
-       else if(length >= minLength && length <= maxLength)     {       success = 1;    }
-       else                                                                                            {       success = 0;    }
+               int length = seq.getNumBases();
+               bool success = 0;       //guilty until proven innocent
+               
+               if(length >= minLength && maxLength == 0)                       {       success = 1;    }
+               else if(length >= minLength && length <= maxLength)     {       success = 1;    }
+               else                                                                                            {       success = 0;    }
+               
+               return success;
        
-       return success;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "cullLength");
+               exit(1);
+       }
        
 }
 
 //***************************************************************************************************************
 
 bool TrimSeqsCommand::cullHomoP(Sequence& seq){
-       
-       int longHomoP = seq.getLongHomoPolymer();
-       bool success = 0;       //guilty until proven innocent
-       
-       if(longHomoP <= maxHomoP){      success = 1;    }
-       else                                    {       success = 0;    }
-       
-       return success;
+       try {
+               int longHomoP = seq.getLongHomoPolymer();
+               bool success = 0;       //guilty until proven innocent
+               
+               if(longHomoP <= maxHomoP){      success = 1;    }
+               else                                    {       success = 0;    }
+               
+               return success;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "cullHomoP");
+               exit(1);
+       }
        
 }
 
 //***************************************************************************************************************
 
 bool TrimSeqsCommand::cullAmbigs(Sequence& seq){
-       
-       int numNs = seq.getAmbigBases();
-       bool success = 0;       //guilty until proven innocent
-       
-       if(numNs <= maxAmbig)   {       success = 1;    }
-       else                                    {       success = 0;    }
-       
-       return success;
+       try {
+               int numNs = seq.getAmbigBases();
+               bool success = 0;       //guilty until proven innocent
+               
+               if(numNs <= maxAmbig)   {       success = 1;    }
+               else                                    {       success = 0;    }
+               
+               return success;
+       }
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "cullAmbigs");
+               exit(1);
+       }
        
 }
 
 //***************************************************************************************************************
 
 bool TrimSeqsCommand::compareDNASeq(string oligo, string seq){
-       
-       bool success = 1;
-       int length = oligo.length();
-       
-       for(int i=0;i<length;i++){
-               
-               if(oligo[i] != seq[i]){
-                       if(oligo[i] == 'A' || oligo[i] == 'T' || oligo[i] == 'G' || oligo[i] == 'C')    {       success = 0;    }
-                       else if((oligo[i] == 'N' || oligo[i] == 'I') && (seq[i] == 'N'))                                {       success = 0;    }
-                       else if(oligo[i] == 'R' && (seq[i] != 'A' && seq[i] != 'G'))                                    {       success = 0;    }
-                       else if(oligo[i] == 'Y' && (seq[i] != 'C' && seq[i] != 'T'))                                    {       success = 0;    }
-                       else if(oligo[i] == 'M' && (seq[i] != 'C' && seq[i] != 'A'))                                    {       success = 0;    }
-                       else if(oligo[i] == 'K' && (seq[i] != 'T' && seq[i] != 'G'))                                    {       success = 0;    }
-                       else if(oligo[i] == 'W' && (seq[i] != 'T' && seq[i] != 'A'))                                    {       success = 0;    }
-                       else if(oligo[i] == 'S' && (seq[i] != 'C' && seq[i] != 'G'))                                    {       success = 0;    }
-                       else if(oligo[i] == 'B' && (seq[i] != 'C' && seq[i] != 'T' && seq[i] != 'G'))   {       success = 0;    }
-                       else if(oligo[i] == 'D' && (seq[i] != 'A' && seq[i] != 'T' && seq[i] != 'G'))   {       success = 0;    }
-                       else if(oligo[i] == 'H' && (seq[i] != 'A' && seq[i] != 'T' && seq[i] != 'C'))   {       success = 0;    }
-                       else if(oligo[i] == 'V' && (seq[i] != 'A' && seq[i] != 'C' && seq[i] != 'G'))   {       success = 0;    }                       
-                       
-                       if(success == 0)        {       break;  }
-               }
-               else{
-                       success = 1;
+       try {
+               bool success = 1;
+               int length = oligo.length();
+               
+               for(int i=0;i<length;i++){
+                       
+                       if(oligo[i] != seq[i]){
+                               if(oligo[i] == 'A' || oligo[i] == 'T' || oligo[i] == 'G' || oligo[i] == 'C')    {       success = 0;    }
+                               else if((oligo[i] == 'N' || oligo[i] == 'I') && (seq[i] == 'N'))                                {       success = 0;    }
+                               else if(oligo[i] == 'R' && (seq[i] != 'A' && seq[i] != 'G'))                                    {       success = 0;    }
+                               else if(oligo[i] == 'Y' && (seq[i] != 'C' && seq[i] != 'T'))                                    {       success = 0;    }
+                               else if(oligo[i] == 'M' && (seq[i] != 'C' && seq[i] != 'A'))                                    {       success = 0;    }
+                               else if(oligo[i] == 'K' && (seq[i] != 'T' && seq[i] != 'G'))                                    {       success = 0;    }
+                               else if(oligo[i] == 'W' && (seq[i] != 'T' && seq[i] != 'A'))                                    {       success = 0;    }
+                               else if(oligo[i] == 'S' && (seq[i] != 'C' && seq[i] != 'G'))                                    {       success = 0;    }
+                               else if(oligo[i] == 'B' && (seq[i] != 'C' && seq[i] != 'T' && seq[i] != 'G'))   {       success = 0;    }
+                               else if(oligo[i] == 'D' && (seq[i] != 'A' && seq[i] != 'T' && seq[i] != 'G'))   {       success = 0;    }
+                               else if(oligo[i] == 'H' && (seq[i] != 'A' && seq[i] != 'T' && seq[i] != 'C'))   {       success = 0;    }
+                               else if(oligo[i] == 'V' && (seq[i] != 'A' && seq[i] != 'C' && seq[i] != 'G'))   {       success = 0;    }                       
+                               
+                               if(success == 0)        {       break;   }
+                       }
+                       else{
+                               success = 1;
+                       }
                }
+               
+               return success;
        }
-       
-       return success;
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "compareDNASeq");
+               exit(1);
+       }
+
 }
 
 //***************************************************************************************************************
 
-bool TrimSeqsCommand::stripQualThreshold(Sequence& seq, ifstream& qFile){
-       
-       string rawSequence = seq.getUnaligned();
-       int seqLength = rawSequence.length();
-       string name;
-       
-       qFile >> name;
-       if(name.substr(1) != seq.getName())     {       mothurOut("sequence name mismatch btwn fasta and qual file"); mothurOutEndLine();       }
-       while (!qFile.eof())    {       char c = qFile.get(); if (c == 10 || c == 13){  break;  }       }
-       
-       int score;
-       int end = seqLength;
-       
-       for(int i=0;i<seqLength;i++){
-               qFile >> score;
+int TrimSeqsCommand::countDiffs(string oligo, string seq){
+       try {
 
-               if(score <= qThreshold){
-                       end = i;
-                       break;
+               int length = oligo.length();
+               int countDiffs = 0;
+               
+               for(int i=0;i<length;i++){
+                                                               
+                       if(oligo[i] != seq[i]){
+                               if(oligo[i] == 'A' || oligo[i] == 'T' || oligo[i] == 'G' || oligo[i] == 'C' || oligo[i] == '-' || oligo[i] == '.')      {       countDiffs++;   }
+                               else if((oligo[i] == 'N' || oligo[i] == 'I') && (seq[i] == 'N'))                                {       countDiffs++;   }
+                               else if(oligo[i] == 'R' && (seq[i] != 'A' && seq[i] != 'G'))                                    {       countDiffs++;   }
+                               else if(oligo[i] == 'Y' && (seq[i] != 'C' && seq[i] != 'T'))                                    {       countDiffs++;   }
+                               else if(oligo[i] == 'M' && (seq[i] != 'C' && seq[i] != 'A'))                                    {       countDiffs++;   }
+                               else if(oligo[i] == 'K' && (seq[i] != 'T' && seq[i] != 'G'))                                    {       countDiffs++;   }
+                               else if(oligo[i] == 'W' && (seq[i] != 'T' && seq[i] != 'A'))                                    {       countDiffs++;   }
+                               else if(oligo[i] == 'S' && (seq[i] != 'C' && seq[i] != 'G'))                                    {       countDiffs++;   }
+                               else if(oligo[i] == 'B' && (seq[i] != 'C' && seq[i] != 'T' && seq[i] != 'G'))   {       countDiffs++;   }
+                               else if(oligo[i] == 'D' && (seq[i] != 'A' && seq[i] != 'T' && seq[i] != 'G'))   {       countDiffs++;   }
+                               else if(oligo[i] == 'H' && (seq[i] != 'A' && seq[i] != 'T' && seq[i] != 'C'))   {       countDiffs++;   }
+                               else if(oligo[i] == 'V' && (seq[i] != 'A' && seq[i] != 'C' && seq[i] != 'G'))   {       countDiffs++;   }       
+                       }
+                       
                }
+               
+               return countDiffs;
        }
-       for(int i=end+1;i<seqLength;i++){
-               qFile >> score;
+       catch(exception& e) {
+               m->errorOut(e, "TrimSeqsCommand", "countDiffs");
+               exit(1);
        }
 
-       seq.setUnaligned(rawSequence.substr(0,end));
-
-       return 1;
-}
-
-//***************************************************************************************************************
-
-bool TrimSeqsCommand::cullQualAverage(Sequence& seq, ifstream& qFile){
-       
-       string rawSequence = seq.getUnaligned();
-       int seqLength = seq.getNumBases();
-       bool success = 0;       //guilty until proven innocent
-       string name;
-       
-       qFile >> name;
-       if(name.substr(1) != seq.getName())     {       mothurOut("sequence name mismatch btwn fasta and qual file"); mothurOutEndLine();       }
-       while (!qFile.eof())    {       char c = qFile.get(); if (c == 10 || c == 13){  break;  }       }
-       
-       float score;    
-       float average = 0;
-       
-       for(int i=0;i<seqLength;i++){
-               qFile >> score;
-               average += score;
-       }
-       average /= seqLength;
-       
-       if(average >= qAverage) {       success = 1;    }
-       else                                    {       success = 0;    }
-       
-       return success;
 }
 
 //***************************************************************************************************************
-
-