Exemple #1
0
int main(int argc, char *argv[])
/* Fix carraige returns. */
{
char dir[256], name[128], extension[64];
char bakName[512];
char *fileName;
int i;
FILE *out;
struct lineFile *lf;
char *line;
char *end;
int lineSize;


if (argc<2)
    errAbort("fixCr - strip <CR>s from ends of lines");
for (i=1; i<argc; ++i)
    {
    fileName = argv[i];
    printf("%s ", fileName);
    fflush(stdout);
    splitPath(fileName, dir, name, extension);
    sprintf(bakName, "%s%s%s", dir, name, ".bak");
    remove(bakName);
    rename(fileName, bakName);
    lf = lineFileOpen(bakName, FALSE);
    out = mustOpen(fileName, "w");
    while (lineFileNext(lf, &line, &lineSize))
	{
	if (lineSize > 1)
	    {
	    end = line + lineSize - 2;
	    if (*end == '\r')
		{
		*end = '\n';
		lineSize -= 1;
		}
	    }
	mustWrite(out, line, lineSize);
	}
    fclose(out);
    lineFileClose(&lf);
    }
printf("\n");
return 0;
}
Exemple #2
0
struct cartDb *cartDbLoadAll(char *fileName) 
/* Load all cartDb from a tab-separated file.
 * Dispose of this with cartDbFreeList(). */
{
struct cartDb *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[6];

while (lineFileRow(lf, row))
    {
    el = cartDbLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
Exemple #3
0
struct rhMapZfishInfo *rhMapZfishInfoLoadAll(char *fileName) 
/* Load all rhMapZfishInfo from a whitespace-separated file.
 * Dispose of this with rhMapZfishInfoFreeList(). */
{
struct rhMapZfishInfo *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[10];

while (lineFileRow(lf, row))
    {
    el = rhMapZfishInfoLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
Exemple #4
0
struct rhMapZfishInfo *rhMapZfishInfoLoadAllByChar(char *fileName, char chopper) 
/* Load all rhMapZfishInfo from a chopper separated file.
 * Dispose of this with rhMapZfishInfoFreeList(). */
{
struct rhMapZfishInfo *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[10];

while (lineFileNextCharRow(lf, chopper, row, ArraySize(row)))
    {
    el = rhMapZfishInfoLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
Exemple #5
0
struct gtexGeneBed *gtexGeneBedLoadAllByChar(char *fileName, char chopper) 
/* Load all gtexGeneBed from a chopper separated file.
 * Dispose of this with gtexGeneBedFreeList(). */
{
struct gtexGeneBed *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[11];

while (lineFileNextCharRow(lf, chopper, row, ArraySize(row)))
    {
    el = gtexGeneBedLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
Exemple #6
0
struct gtexGeneBed *gtexGeneBedLoadAll(char *fileName) 
/* Load all gtexGeneBed from a whitespace-separated file.
 * Dispose of this with gtexGeneBedFreeList(). */
{
struct gtexGeneBed *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[11];

while (lineFileRow(lf, row))
    {
    el = gtexGeneBedLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
Exemple #7
0
struct tfbsConsFactors *tfbsConsFactorsLoadAllByChar(char *fileName, char chopper) 
/* Load all tfbsConsFactors from a chopper separated file.
 * Dispose of this with tfbsConsFactorsFreeList(). */
{
struct tfbsConsFactors *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[5];

while (lineFileNextCharRow(lf, chopper, row, ArraySize(row)))
    {
    el = tfbsConsFactorsLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
Exemple #8
0
struct tfbsConsFactors *tfbsConsFactorsLoadAll(char *fileName) 
/* Load all tfbsConsFactors from a whitespace-separated file.
 * Dispose of this with tfbsConsFactorsFreeList(). */
{
struct tfbsConsFactors *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[5];

while (lineFileRow(lf, row))
    {
    el = tfbsConsFactorsLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
Exemple #9
0
struct arcogdesc *arcogdescLoadAll(char *fileName) 
/* Load all arcogdesc from a whitespace-separated file.
 * Dispose of this with arcogdescFreeList(). */
{
struct arcogdesc *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[3];

while (lineFileRow(lf, row))
    {
    el = arcogdescLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
Exemple #10
0
static void readTrans(char *transFile, char *faDir, struct hash *cloneHash, struct hash *fragHash)
/* Read in transFile into hashes. */
{
struct lineFile *lf = lineFileOpen(transFile, TRUE);
char *row[3];
char *parts[3], *subParts[2];
int partCount, subCount;
char faName[512];
struct clone *clone;
struct frag *frag;

printf("Reading %s\n", transFile);
while (lineFileRow(lf, row))
    {
    char *cloneName = row[1];
    char *e = strchr(cloneName, '~');
    if (e == NULL)
        errAbort("Missing ~ line %d of %s", lf->lineIx, lf->fileName);
    *e++ = 0;
    if ((clone = hashFindVal(cloneHash, cloneName)) == NULL)
        {
	AllocVar(clone);
	hashAddSaveName(cloneHash, cloneName, clone, &clone->name);
	chopSuffix(cloneName);
	sprintf(faName, "%s/%s.fa", faDir, cloneName);
	cloneName = NULL;
	clone->faFile = cloneString(faName);
	}
    AllocVar(frag);
    hashAddSaveName(fragHash, row[0], frag, &frag->name);
    partCount = chopString(row[2], "(:)", parts, ArraySize(parts));
    if (partCount != 2)
        errAbort("Expecting (ACCESSION.VER:START..STOP) line %d of %s", lf->lineIx, lf->fileName);
    subCount = chopString(parts[1], ".", subParts, ArraySize(subParts));
    if (subCount != 2)
        errAbort("Expecting START..STOP line %d of %s", lf->lineIx, lf->fileName);
    frag->start = atoi(subParts[0])-1;
    frag->end = atoi(subParts[1]);
    frag->clone = clone;
    if (clone->size < frag->end)
        clone->size = frag->end;
    slAddTail(&clone->fragList, frag);
    }
lineFileClose(&lf);
}
Exemple #11
0
struct hash *getChromLimits(char *database)
/* Get hash full of chromosome limits. */
{
struct sqlConnection *conn = hAllocConn(database);
struct sqlResult *sr;
char **row;
struct hash *hash = newHash(8);
struct chromLimit *clList = NULL, *cl;
double sum = 0;
char *limitFile = optionVal("chromLimit", NULL);

/* Read in chromosome info from database. */
sr = sqlGetResult(conn, "NOSQLINJ select chrom,size from chromInfo");
while ((row = sqlNextRow(sr)) != NULL)
    {
    AllocVar(cl);
    hashAddSaveName(hash, row[0], cl, &cl->name);
    cl->size = atoi(row[1]);
    sum += cl->size;
    slAddHead(&clList, cl);
    }
sqlFreeResult(&sr);
hFreeConn(&conn);

/* Calculate max picks. */
for (cl = clList; cl != NULL; cl = cl->next)
    {
    cl->maxPicks = round(60.0*cl->size/sum);
    }

/* Override max picks based on chromLimits file if any. */
if (limitFile != NULL)
    {
    struct lineFile *lf = lineFileOpen(limitFile, TRUE);
    char *row[2];
    while (lineFileRow(lf, row))
        {
	cl = hashFindVal(hash, row[0]);
	cl->maxPicks = lineFileNeedNum(lf, row, 1);
	}
    lineFileClose(&lf);
    }

return hash;
}
Exemple #12
0
void chainMergeSort(int fileCount, char *files[], FILE *out, int level)
/* chainMergeSort - Combine sorted files into larger sorted file. */
{
int i;
struct chainFile *cf;
int id = 0;
struct quickHeap *h = NULL;

h = newQuickHeap(fileCount, &cmpChainScores);

/* Open up all input files and read first chain. */
for (i=0; i<fileCount; ++i)
    {
    AllocVar(cf);
    cf->lf = lineFileOpen(files[i], TRUE);
    lineFileSetMetaDataOutput(cf->lf, out);
    cf->chain = chainRead(cf->lf);
    if (cf->chain)
    	addToQuickHeap(h, cf);
    else
	cfEof(&cf,level);  /* deal with EOF */
    }

while (!quickHeapEmpty(h))
    {
    cf = peekQuickHeapTop(h);
    if (!saveId)
	cf->chain->id = ++id;		/* We reset id's here. */
    chainWrite(cf->chain, out);
    chainFree(&cf->chain);
    if ((cf->chain = chainRead(cf->lf)))
	{
	quickHeapTopChanged(h);
	}
    else
	{ /* deal with EOF */
	if (!removeFromQuickHeapByElem(h, cf))
	    errAbort("unexpected error: chainFile not found on heap");
	cfEof(&cf,level);  
	}
    }

freeQuickHeap(&h);

}
Exemple #13
0
static struct hash *readLift(char *liftAcross)
/* read in liftAcross file, create hash of srcName as hash key,
 *	hash elements are simple lists of coordinate relationships
 *	return them all sorted by start position
 */
{
char *row[6];
struct hash *result = newHash(8);
struct hashEl *hel = NULL;
struct lineFile *lf = lineFileOpen(liftAcross, TRUE);
while (lineFileNextRow(lf, row, ArraySize(row)))
    {
    struct liftSpec *liftSpec;
    hel = hashStore(result, row[0]);		/* srcName hash	*/
    AllocVar(liftSpec);
    liftSpec->start = sqlUnsigned(row[1]);	/* src start	*/
    liftSpec->end = sqlUnsigned(row[2]);	/* src end	*/
    liftSpec->dstName = cloneString(row[3]);	/* dstName	*/
    liftSpec->dstStart = sqlUnsigned(row[4]);	/* dst start	*/
    liftSpec->strand = '+';			/* dst strand	*/
    if ('-' == *row[5])
	liftSpec->strand = '-';
    /* accumulate list of lift specs under the srcName hash	*/
    slAddHead(&(hel->val), liftSpec);
    }

/*	Go through each srcName in the hash, and sort the list there by
 *	the start coordinate of each item.  The searching will expect
 *	them to be in order.
 */
struct hashCookie cookie = hashFirst(result);
while ((hel = hashNext(&cookie)) != NULL)
    {
    slSort(&(hel->val), lsStartCmp);
    if (verboseLevel() > 2)
	{
	struct liftSpec *ls;
	for (ls = hel->val; ls != NULL; ls = ls->next)
	    verbose(3, "# %s\t%d\t%d\t%s\t%d\t%c\n", hel->name, ls->start,
		ls->end, ls->dstName, ls->dstStart, ls->strand);
	}
    }

return result;
}
Exemple #14
0
struct rgi *readRgi(char *inName)
{
struct rgi *rgiList = NULL, *rgi;
struct lineFile *lf = lineFileOpen(inName, TRUE);
int wordCount;
char *words[8];

while ((wordCount = lineFileChop(lf, words)) != 0)
    {
    lineFileExpectWords(lf, 4, wordCount);
    rgi = rgiLoad(words);
    slAddHead(&rgiList, rgi);
    uglyf("%s %s: min %d, max %d\n", rgi->a, rgi->b, rgi->minDistance, rgi->maxDistance);
    }
lineFileClose(&lf);
slReverse(&rgiList);
return rgiList;
}
void doIt(char *inName, char *tNibDirOr2bit, char *qNibDirOr2bit, char *outName)
/* chainToAxt - Convert from chain to axt file. */
{
struct lineFile *lf = lineFileOpen(inName, TRUE);
struct nibTwoCache *tSeqCache = nibTwoCacheNew(tNibDirOr2bit);
struct nibTwoCache *qSeqCache = nibTwoCacheNew(qNibDirOr2bit);
struct chain *chain = NULL;
FILE *f = mustOpen(outName, "w");

while ((chain = chainRead(lf)) != NULL)
    {
    if (chain->score >= minScore)
        doAChain(chain, tSeqCache, qSeqCache, f);
    chainFree(&chain);
    }
lineFileClose(&lf);
carefulClose(&f);
}
void makeInfoPai(boolean isEst, char *inName, char *outName)
/* Make a pair based on .info file - which has two fields:
 *    accession clone */
{
struct lineFile *lf = lineFileOpen(inName, TRUE);
char *row[2];
char acc[128];

if (isEst)
    errAbort("Currently only handle BAC .info files.");
while (lineFileRow(lf, row))
    {
    strcpy(acc, row[0]);
    chopSuffix(acc);
    addBac(lf, acc, row[1]);
    }
lineFileClose(&lf);
}
Exemple #17
0
void getMachines(char *filename)
/* Read in list of machines to use. */
{
struct lineFile *lf = lineFileOpen(filename, TRUE);
char *line;
int lineSize;
struct machine *machine;

while (lineFileNext(lf, &line, &lineSize))
    {
    AllocVar(machine);
    // is this equivalent to slAddHead?
    machine->name = line;
    machine->next = machineList;
    machineList = machine;
    }
/* could reverse order here */
}
Exemple #18
0
void axtIndex(char *in, char *out)
/* axtIndex - Create summary file for axt. */
{
struct lineFile *lf = lineFileOpen(in, TRUE);
FILE *f = mustOpen(out, "w");
struct axt *axt;

for (;;)
    {
    off_t pos = lineFileTell(lf);
    axt = axtRead(lf);
    if (axt == NULL)
        break;
    fprintf(f, "%d %d %lld\n", axt->tStart, axt->tEnd - axt->tStart, (unsigned long long) pos); 
    axtFree(&axt);
    }
carefulClose(&f);
}
Exemple #19
0
struct hash *readOrfToGene(char *fileName)
/* Read two column orf/gene file and return a hash 
 * keyed by orf with gene values. */
{
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[2];
struct hash *hash = newHash(16);
while (lineFileRow(lf, row))
    {
    char *orf = row[0];
    char *gene = row[1];
    if (!strchr(orf, '.') || !strchr(gene, '-'))
        errAbort("%s doesn't seem to be in ORF<tab>gene<CR> format", fileName);
    hashAdd(hash, orf, cloneString(gene));
    }
lineFileClose(&lf);
return hash;
}
Exemple #20
0
struct hash *readStrand(char *strandFile)
/* read the strands from a file */
{
struct hash *strandHash = newHash(16);
struct lineFile  *lf = lineFileOpen(strandFile, TRUE); /* input file */
char             *row[2]; /* number of fields in input file */

while (lineFileRow(lf, row)) /* process one snp at a time */
    {
    struct strand *strand;

    AllocVar(strand);
    strand->name   = cloneString(row[0]);
    strand->strand = cloneString(row[1]);
    hashAddSaveName(strandHash, strand->name, strand, &strand->name);
    }
return strandHash;
}
Exemple #21
0
struct affyPairs *affyPairsLoadAll(char *fileName) 
/* Load all affyPairs from a tab-separated file.
 * Dispose of this with affyPairsFreeList(). */
{
struct affyPairs *list = NULL, *el;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[12];

lineFileRow(lf, row); /* get rid of one line header. */
while (lineFileRow(lf, row))
    {
    el = affyPairsLoad(row);
    slAddHead(&list, el);
    }
lineFileClose(&lf);
slReverse(&list);
return list;
}
void countSeq(char *fileName, int *retSeqCount, int *retBaseCount)
/* Count bases and sequences in fa file. */
{
int seqCount = 0, baseCount = 0, oneSize;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
DNA *dna;
char *name;

while (faSpeedReadNext(lf, &dna, &oneSize, &name))
    {
    seqCount += 1;
    baseCount += oneSize;
    }

lineFileClose(&lf);
*retSeqCount = seqCount;
*retBaseCount = baseCount;
}
Exemple #23
0
struct hash *readSizes(char *fileName)
/* Read tab-separated file into hash with
 * name key size value. */
{
struct lineFile *lf = lineFileOpen(fileName, TRUE);
struct hash *hash = newHash(0);
char *row[2];
while (lineFileRow(lf, row))
    {
    char *name = row[0];
    int size = lineFileNeedNum(lf, row, 1);
    
    /* trust the user to not have duplicated names in the lengths file */
    hashAdd(hash, name, intToPt(size));
    }
lineFileClose(&lf);
return hash;
}
Exemple #24
0
void rmskOut2OpenVerify(char *fileName, struct lineFile **retFile, boolean *retEmpty)
/* Open repeat masker .out file and verify that it is good.
 * Set retEmpty if it has header characteristic of an empty file. */
{
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *line;
int lineSize;

lineFileNeedNext(lf, &line, &lineSize);
if (startsWith("There were no", line))
    *retEmpty = TRUE;
line = skipLeadingSpaces(line);
if (! ( startsWith("SW", line) || startsWith("bit", line) ) )
  errAbort("%s doesn't seem to be a RepeatMasker .out file", fileName);
lineFileSkip(lf, 2);
*retEmpty = FALSE;
*retFile = lf;
}
Exemple #25
0
void tagToBed12(char *pairTagFile, char *bedFile)
/* tagToBed12 - Convert tagAlign format to bed 12 + 2. */
{
struct lineFile *lf = lineFileOpen(pairTagFile, TRUE);
FILE *f = mustOpen(bedFile, "w");
struct tagAlign *pt;
struct bed12wSeq bed;
char *row[6];

int blockSizes[1];
int chromStarts[1];
chromStarts[0] = 0;
bed.chromStarts = chromStarts;
bed.blockSizes = blockSizes;
bed.blockCount = 1;
bed.strand[1] = 0;

while (lineFileRow(lf, row))
    {
    pt = tagAlignLoad(row);

    bed.chrom = pt->chrom;
    bed.chromStart = pt->chromStart;
    bed.thickStart = pt->chromStart;
    bed.chromEnd = pt->chromEnd;
    bed.thickEnd = pt->chromEnd;
    bed.name = pt->sequence;
    bed.score = pt->score;
    bed.strand[0] = pt->strand;
    bed.seq1 = pt->sequence;
    bed.seq2 = "X";
    bed.reserved = 0;

    blockSizes[0] = strlen(pt->sequence);

    assert(bed.chromEnd = bed.chromStart + blockSizes[0]);

    bed12wSeqOutput(&bed, f, '\t', '\n');

    tagAlignFree(&pt);
    }

lineFileClose(&lf);
}
void convertCelFile(struct lqRecord ***lqMatrix, struct hash *nmerHash, char *celFile, char *outputFormat)
{
struct lineFile *lf = lineFileOpen(celFile, TRUE);
char *line=NULL;
int lineSize, x, y, i,j;
char *words[5];
struct lqRecord *pm = NULL, *mm=NULL;
char *outFile = needMem(sizeof(char)*(strlen(celFile)+5));
FILE *out = NULL;
int numCols=0, numRows=0;
struct cel ***celMatrix = NULL;
safef(outFile, strlen(celFile)+5, "%s.tab", celFile);
out = mustOpen(outFile, "w");

parseCelRowsCols(lf, &numRows, &numCols);
if(numCols == 0 || numRows == 0)
    errAbort("Couldn't find a 'Cols=' or a 'Rows=' in %s, is this a cel file?\n", celFile);

/* Allocate the matrix. */
celMatrix = needMem(sizeof(struct lqRecord *)*numRows);
for(i=0; i<numRows; i++) 
    celMatrix[i] = needMem(sizeof(struct lqRecord *)*numCols);

while(lineFileNextRowTab(lf, words, 5))
    {
    struct cel *cel = parseCelRow(words);
    celMatrix[cel->x][cel->y] = cel;
    if(cel->x + 1 == numRows && cel->y +1 == numCols)
	break;
    }
outputPairsFile(out, numRows, numCols, lqMatrix, celMatrix);

/* Cleanup. */
for(i=0;i<numRows;i++)
    for(j=0; j<numCols; j++)
	if(celMatrix[i][j] != NULL)
	    freez(&celMatrix[i][j]);
for(i=0; i<numRows; i++) 
    freez(&celMatrix[i]);
freez(&celMatrix);
lineFileClose(&lf);
freez(&outFile);
carefulClose(&out);
}
struct hash *loadGenePositions(char *database, struct sqlConnection *conn, char *fileName)
/* Read in 7 column file and convert to hash of gene
 * positions. */
{
struct hash *hash = newHash(16);
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[7];
int count = 0;
struct genomePos *posList = NULL, *pos;

while (lineFileRow(lf, row))
    {
    int geneStart,geneEnd,upSize,downSize;

    AllocVar(pos);
    hashAddSaveName(hash, row[0], pos, &pos->name);
    slAddHead(&posList, pos);
    pos->chrom = hgOfficialChromName(database, row[1]);
    if (pos->chrom == NULL)
        errAbort("Unrecognized chromosome %s line %d of %s",
		row[1], lf->lineIx, lf->fileName);
    geneStart = lineFileNeedNum(lf, row, 2);
    geneEnd = lineFileNeedNum(lf, row, 3);
    pos->strand = row[4][0];
    if (pos->strand != '+' && pos->strand != '-')
        errAbort("Unrecognized strand %s line %d of %s",
		row[4], lf->lineIx, lf->fileName);
    upSize = lineFileNeedNum(lf, row, 5);
    downSize = lineFileNeedNum(lf, row, 6);
    if (pos->strand == '+')
        {
	pos->start = geneStart - upSize;
	pos->end = geneStart + downSize;
	}
    else	
        {
	pos->start = geneEnd - downSize;
	pos->end = geneEnd + upSize;
	}
    ++count;
    }
verbose(1, "%d genes in %s\n", count, fileName);
return hash;
}
void aveNoQuartiles(char *fileName)
/* aveNoQuartiles - Compute only min,max,mean,stdDev no quartiles */
{
bits64 count = 0;
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *words[128], *word;
int wordCount;
int wordIx = col-1;
double sumData = 0.0, sumSquares = 0.0;
double minVal = DBL_MAX, maxVal = -DBL_MAX;

while ((wordCount = lineFileChop(lf, words)) > 0)
    {
    word = words[wordIx];
    if (word[0] == '-' || isdigit(word[0]))
        {
	double val = sqlDouble(word);
	if (minVal > val) minVal = val;
	if (maxVal < val) maxVal = val;
	sumData += val;
	sumSquares += val * val;
	++count;
	}
    }
if (count == 0)
    errAbort("No numerical data column %d of %s", col, fileName);
double average = sumData/count;
double stdDev = calcStdFromSums(sumData, sumSquares, count);
if (tableOut)
    {
    printf("# min max mean N sum stddev\n");
    printf("%g %g %g %llu %g %g\n",
	minVal, maxVal, average, count, sumData, stdDev);
    }
else
    {
    printf("average %f\n", average);
    printf("min %f\n", minVal);
    printf("max %f\n", maxVal);
    printf("count %llu\n", count);
    printf("total %f\n", sumData);
    printf("standard deviation %f\n", stdDev);
    }
}
Exemple #29
0
void newStitch3(char *axtFile, char *output)
/* newStitch3 - Another stitching experiment - with kd-trees.. */
{
struct hash *pairHash = newHash(0);  /* Hash keyed by qSeq<strand>tSeq */
struct dyString *dy = newDyString(512);
struct lineFile *lf = lineFileOpen(axtFile, TRUE);
struct axt *axt;
struct seqPair *spList = NULL, *sp;
FILE *f = mustOpen(output, "w");

/* Read input file and divide alignments into various parts. */
while ((axt = axtRead(lf)) != NULL)
    {
    struct cBlock *block;
    if (axt->score < 500)
        {
	axtFree(&axt);
	continue;
	}
    dyStringClear(dy);
    dyStringPrintf(dy, "%s%c%s", axt->qName, axt->qStrand, axt->tName);
    sp = hashFindVal(pairHash, dy->string);
    if (sp == NULL)
        {
	AllocVar(sp);
	slAddHead(&spList, sp);
	hashAddSaveName(pairHash, dy->string, sp, &sp->name);
	}
    AllocVar(block);
    block->qStart = axt->qStart;
    block->qEnd = axt->qEnd;
    block->tStart = axt->tStart;
    block->tEnd = axt->tEnd;
    block->score = axt->score;
    slAddHead(&sp->blockList, block);
    axtFree(&axt);
    }
for (sp = spList; sp != NULL; sp = sp->next)
    {
    slReverse(&sp->blockList);
    chainPair(sp, f);
    }
dyStringFree(&dy);
}
void addStretchInfo(char *fileName, struct chromInfo *ctg)
/* Add info about how much clones are stretched from gl file. */
{
struct hash *cloneHash = newHash(12);
struct lineFile *lf = lineFileOpen(fileName, TRUE);
char *row[4];
struct gl gl;
struct clone *cloneList = NULL, *clone;

while (lineFileRow(lf, row))
    {
    glStaticLoad(row, &gl);
    chopSuffix(gl.frag);
    if ((clone = hashFindVal(cloneHash, gl.frag)) == NULL)
        {
	AllocVar(clone);
	slAddHead(&cloneList, clone);
	hashAddSaveName(cloneHash, gl.frag, clone, &clone->name);
	clone->start = gl.start;
	clone->end = gl.end;
	}
    else
        {
	if (gl.start < clone->start) clone->start = gl.start;
	if (gl.end > clone->end) clone->end = gl.end;
	}
    clone->totalSize += gl.end - gl.start;
    }
for (clone = cloneList; clone != NULL; clone = clone->next)
    {
    int stretchSize = clone->end - clone->start;
    double stretchRatio;
    ctg->cloneCount += 1;
    ctg->totalStretch += stretchSize - clone->totalSize;
    stretchRatio = stretchSize / clone->totalSize;
    if (stretchRatio > 1.3)
        ctg->stretchedClones += 1;
    if (stretchRatio > 2.0)
        ctg->wayStretchedClones += 1;
    }
lineFileClose(&lf);
hashFree(&cloneHash);
slFreeList(&cloneList);
}