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funjoin.c
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/*
* Copyright (c) 2005 Smithsonian Astrophysical Observatory
*/
/*
* funjoin -j key t1.fits t2.fits t3.fits foo.fits
*/
#include <math.h>
#include <funtoolsP.h>
#include <word.h>
/* #define JOIN_DEBUG 1 */
#if JOIN_DEBUG
#define IPRINTF(x) fprintf x
#else
#define IPRINTF(x)
#endif
#ifndef ftol
#define ftol(x,y,t) (fabs((double)x-(double)y)<=((double)t+(double)1.0E-15))
#endif
#ifndef feq
#define feq(x,y) (fabs((double)x-(double)y)<=(double)1.0E-15)
#endif
#define MAXIFILE 32
#define MAXOFILE 1
#define MAXROW 8192
#define KEY_STRING 1
#define KEY_NUMERIC 2
#define JFILES_COL "JFILES"
typedef unsigned int JBITMASK;
#define JBITSIZE (int)sizeof(JBITMASK)
static int maxrow=MAXROW;
typedef struct _colrec{
char *name, *oname;
int type, mode, offset, n, width;
int coffset;
} *XCol, XColRec;
typedef struct _filerec{
char *fname;
char *jname;
char *bstr;
char *actstr;
Fun fun;
int eof;
int rowsize;
int rowoffset;
char *rowbuf;
char *blank;
int counter;
int tcol;
int maxcol;
int ncol;
XCol cols;
int dtype;
int jtype, jmode, joffset, jn, jwidth;
int idx;
double dval;
double mval;
char *sval;
int ibase;
GIO igio;
int irow;
int maxindex;
int nindex;
int *indexes;
} *XFile, XFileRec;
extern char *optarg;
extern int optind;
#ifdef ANSI_FUNC
static void
usage (char *fname)
#else
static void usage(fname)
char *fname;
#endif
{
fprintf(stderr,
"usage: %s <switches> ifile1 ifile2 ... ifilen ofile\n",
fname);
fprintf(stderr, "optional switches:\n");
fprintf(stderr, " -a cols # columns to activate in all files\n");
fprintf(stderr, " -a1 cols ... an cols # columns to activate in each file\n");
fprintf(stderr, " -b 'c1:bvl,c2:bv2' # blank values for common columns in all files\n");
fprintf(stderr, " -bn 'c1:bv1,c2:bv2' # blank values for columns in specific files\n");
fprintf(stderr, " -j col # column to join in all files\n");
fprintf(stderr, " -j1 col ... jn col # column to join in each file\n");
fprintf(stderr, " -m min # min matches to output a row\n");
fprintf(stderr, " -M max # max matches to output a row\n");
fprintf(stderr, " -s # add 'jfiles' status column\n");
fprintf(stderr, " -S col # add col as status column\n");
fprintf(stderr, " -t tol # tolerance for joining numeric cols [2 files only]\n");
fprintf(stderr, "Between 2 and %d input files are allowed.\n", MAXIFILE);
fprintf(stderr, "\n(version: %s)\n", FUN_VERSION);
exit(1);
}
#ifdef ANSI_FUNC
static void
JoinMakeBlank(XFile file, char *defblank)
#else
static void
JoinMakeBlank(file, defblank)
XFile file;
char *defblank;
#endif
{
int i, j;
int ip=0;
char tbuf[SZ_LINE];
char *b;
char *blanks[2];
char *t, *v;
unsigned char bval;
short sval;
unsigned short usval;
int ival;
longlong lval;
unsigned int uival;
float fval;
double dval;
/* start with a blank line */
file->blank = xcalloc(file->rowsize, sizeof(char));
/* blank specifications are separated by comma or semi */
newdtable(",;");
/* there are 2 places where we can get blank values: default and file */
if( defblank )
blanks[0] = xstrdup(defblank);
else
blanks[0] = NULL;
if( file->bstr )
blanks[1] = xstrdup(file->bstr);
else
blanks[1] = NULL;
/* process defaults first, then overwrite with specifics */
for(j=0; j<2; j++){
if( !blanks[j] || !*blanks[j] ) continue;
ip = 0;
while( word(blanks[j], tbuf, &ip) ){
if( (t=strchr(tbuf, ':')) ){
v=t+1;
*t = '\0';
for(i=0; i<file->ncol; i++){
if( !strcasecmp(tbuf, file->cols[i].oname) ){
b = file->blank+file->cols[i].coffset;
switch(file->cols[i].type){
case 'L':
bval = atoi(v);
memcpy(b, &bval, sizeof(unsigned char));
break;
case 'X':
switch(file->cols[i].width/file->cols[i].n){
case 0:
case 1:
bval = atoi(v);
memcpy(b, &bval, sizeof(unsigned char));
break;
case 2:
sval = atoi(v);
memcpy(b, &sval, sizeof(short));
break;
case 4:
ival = atoi(v);
memcpy(b, &ival, sizeof(int));
break;
default:
gerror(stderr, "only set blank value on X of size 1,2,4\n");
break;
}
break;
case 'B':
bval = atoi(v);
memcpy(b, &bval, sizeof(unsigned char));
break;
case 'I':
sval = atoi(v);
memcpy(b, &sval, sizeof(short));
break;
case 'J':
ival = atoi(v);
memcpy(b, &ival, sizeof(int));
break;
case 'K':
#if HAVE_LONG_LONG == 0
gerror(stderr,
"64-bit data support not built (long long not available)\n");
#endif
lval = atoll(v);
memcpy(b, &lval, sizeof(longlong));
break;
case 'U':
usval = atoi(v);
memcpy(b, &usval, sizeof(unsigned short));
break;
case 'V':
uival = atoi(v);
memcpy(b, &uival, sizeof(unsigned int));
break;
case 'E':
if( !strcasecmp(t, "nan") ){
fval = getnanf();
}
else{
fval = atof(v);
}
memcpy(b, &fval, sizeof(float));
break;
case 'D':
if( !strcasecmp(t, "nan") ){
dval = getnand();
}
else{
dval = atof(v);
}
memcpy(b, &dval, sizeof(double));
break;
case 'A':
strncpy(b, v, file->cols[i].width);
break;
}
}
}
}
else{
gerror(stderr, "invalid blank specification: %s\n", tbuf);
}
}
}
/* free up delim table */
freedtable();
/* free blank strings */
for(i=0; i<2; i++){
if( blanks[i] ) xfree(blanks[i]);
}
}
#ifdef ANSI_FUNC
static int
JoinAddCol(XFile file, char *name, char *oname,
int type, int mode, int offset, int n, int width, int coffset)
#else
static int
JoinAddCol(file, name, oname, type, mode, offset, n, width, coffset)
XFile file;
char *name;
char *oname;
int type;
int mode;
int offset;
int n;
int width;
int coffset;
#endif
{
if( !file->maxcol ){
file->maxcol = 1;
file->cols = xcalloc(file->maxcol, sizeof(XColRec));
}
else if( file->ncol >= file->maxcol ){
file->maxcol *= 2;
file->cols = xrealloc(file->cols, file->maxcol*sizeof(XColRec));
}
file->cols[file->ncol].name = xstrdup(name);;
file->cols[file->ncol].oname = xstrdup(oname);;
file->cols[file->ncol].type = type;
file->cols[file->ncol].mode = mode;
file->cols[file->ncol].offset = offset;
file->cols[file->ncol].n = n;
file->cols[file->ncol].width = width;
file->cols[file->ncol].coffset = coffset;
file->ncol++;
return file->ncol;
}
#ifdef ANSI_FUNC
static int
JoinFilesLeft(XFile ifiles, int nfile)
#else
static int
JoinFilesLeft(ifiles, nfile)
XFile ifiles;
int nfile;
#endif
{
int i;
int left=0;
for(i=0; i<nfile; i++){
if( !ifiles[i].eof ){
left++;
}
}
return left;
}
#ifdef ANSI_FUNC
static int
JoinReadNext(XFile ifiles, int nfile, int which)
#else
static int
JoinReadNext(ifiles, nfile, which)
XFile ifiles;
int nfile;
int which;
#endif
{
int i;
int got;
int lo, hi;
int nrec=0;
if( which < 0 ){
lo = 0;
hi = ABS(which)-1;
}
else{
lo = which;
hi = which;
}
if( hi > nfile ) return 0;
for(i=lo; i<=hi; i++){
if( ifiles[i].eof ) continue;
FunTableRowGet(ifiles[i].fun, (void *)&(ifiles[i]), 1, NULL, &got);
if( !got ){
ifiles[i].eof = 1;
}
else{
nrec++;
}
}
return nrec;
}
#ifdef ANSI_FUNC
static int
JoinGetMatches(XFile ifiles, int nfile, int ktype, double tol, char *matches)
#else
static int
JoinGetMatches(ifiles, nfile, ktype, tol, matches)
XFile ifiles;
int nfile;
int ktype;
double tol;
char *matches;
#endif
{
int i;
int m=0;
int ibase=-1;
char *sval=NULL;
double dval=0.0;
/* no matches yet */
memset(matches, 0, nfile);
/* clear index position information */
for(i=0; i<nfile; i++){
ifiles[i].ibase = 0;
ifiles[i].irow = -1;
}
/* get first valid file */
for(i=0; i<nfile; i++){
if( ifiles[i].eof ) continue;
ibase = i;
break;
}
/*make sure we have a valid file */
if( ibase < 0 ) return 0;
/* process all files and look for matches */
switch(ktype){
case KEY_STRING:
/* get base */
for(i=0; i<nfile; i++){
if( ifiles[i].eof ) continue;
/* smallest value is base */
if( strcmp(ifiles[i].sval, ifiles[ibase].sval) < 0 ){
ibase = i;
}
}
/* this is the smallest value */
sval = ifiles[ibase].sval;
/* look for matches in all valid files */
for(i=0; i<nfile; i++){
if( ifiles[i].eof ) continue;
/* ascii requires exact string match */
if( !strcmp(ifiles[i].sval, sval) ){
matches[m++] = i;
}
}
break;
case KEY_NUMERIC:
/* get base */
for(i=0; i<nfile; i++){
if( ifiles[i].eof ) continue;
/* smallest value is base */
if( ifiles[i].dval < ifiles[ibase].dval ){
ibase = i;
}
}
/* this is the smallest value */
dval = ifiles[ibase].dval;
FunInfoGet(ifiles[ibase].fun, FUN_ROW, &ifiles[ibase].irow, 0);
/* look for matches in all valid files */
for(i=0; i<nfile; i++){
if( ifiles[i].eof ) continue;
/* tolerance test */
if( (tol > 0.0) && ftol(ifiles[i].dval,dval,tol) ){
matches[m++] = i;
ifiles[i].mval = dval;
FunInfoGet(ifiles[i].fun, FUN_ROW, &ifiles[i].irow, 0);
}
/* "exact" match */
else if( feq(ifiles[i].dval,dval) ){
matches[m++] = i;
ifiles[i].irow = -1;
}
}
break;
}
if( ibase >=0 ) ifiles[ibase].ibase = 1;
return m;
}
#ifdef ANSI_FUNC
static int
JoinAddIndex(XFile ifile, int idx)
#else
static int
JoinAddIndex(ifile, idx)
XFile ifile;
int idx;
#endif
{
if( !ifile->maxindex ){
ifile->maxindex = 1;
ifile->indexes = xcalloc(ifile->maxindex, sizeof(int));
}
else if( ifile->nindex >= ifile->maxindex ){
ifile->maxindex *= 2;
ifile->indexes = xrealloc(ifile->indexes, ifile->maxindex*sizeof(int));
}
ifile->indexes[ifile->nindex++] = idx;
return ifile->nindex;
}
#ifdef ANSI_FUNC
static void
JoinGatherRows(XFile ifiles, int nfile, int ktype, double tol,
char *matches, int nmatch, int *resetflag)
#else
static void
JoinGatherRows(ifiles, nfile, ktype, tol, matches, nmatch, resetflag)
XFile ifiles;
int nfile;
int ktype;
double tol;
char *matches;
int nmatch;
int *resetflag
#endif
{
int i, j;
int ibase=-1;
char *sval=NULL;
double dval;
double mval;
/* no need to reset rows yet */
*resetflag = -1;
/* make sure we have matches to process */
if( !nmatch ) return;
/* find base value */
for(j=0; j<nmatch; j++){
i = matches[j];
if( ifiles[i].ibase ){
ibase = i;
break;
}
}
/* should never happen */
if( ibase < 0 ) return;
/* for each match file, look for successive rows that also match */
for(j=0; j<nmatch; j++){
i = matches[j];
ifiles[i].nindex = 0;
JoinAddIndex(&ifiles[i], ifiles[i].idx);
switch(ktype){
case KEY_STRING:
sval = ifiles[i].sval;
while( JoinReadNext(ifiles, nfile, i) ){
if( !strcmp(sval,ifiles[i].sval) ){
JoinAddIndex(&ifiles[i], ifiles[i].idx);
}
else{
break;
}
}
break;
case KEY_NUMERIC:
dval = ifiles[i].dval;
mval = ifiles[i].mval;
while( JoinReadNext(ifiles, nfile, i) ){
if( (tol > 0.0) && (i!=ibase) && ftol(ifiles[i].dval,mval,tol) ){
JoinAddIndex(&ifiles[i], ifiles[i].idx);
}
else if( feq(ifiles[i].dval,dval) ){
JoinAddIndex(&ifiles[i], ifiles[i].idx);
}
else{
/* If this is the base file and we are using a tolerance, and the
difference between the last base and this base value is less than
twice the tolerance, we have to reset all other file positions
and re-check those values against this new base value. */
if( (tol > 0.0) && (i==ibase) && ftol(ifiles[i].dval,dval,(2*tol)) ){
*resetflag = ibase;
}
break;
}
}
}
}
}
#ifdef ANSI_FUNC
static int
JoinWriteRows(XFile files, XFile ifiles, int nfile, char *matches,
int nmatch, int jbits, XFile ofiles)
#else
static int
JoinWriteRows(files, ifiles, nfile, matches, nmatch, jbits, ofiles)
XFile files;
XFile ifiles;
int nfile;
char *matches;
int nmatch;
int jbits;
XFile ofiles;
#endif
{
int i, j, k;
int ii;
int got;
int nrow=1;
char *buf;
char *rowptr;
char *flags=NULL;
JBITMASK *jfiles=NULL;
/* allocate flags to tell which files we proces */
if( !(flags=xcalloc(nfile, sizeof(char))) ){
return 0;
}
/* allocate space for joinfiles bitflag */
if( jbits ){
if( !(jfiles=xcalloc(jbits/JBITSIZE, JBITSIZE)) ){
return 0;
}
}
/* set initial values for files which have joins */
for(i=0; i<nmatch; i++){
ii = (int)matches[i];
flags[ii] = 1;
nrow *= ifiles[ii].nindex;
ifiles[ii].counter = 0;
}
/* process all rows */
for(i=0; i<nrow; i++){
/* clear output rowbuf */
memset(ofiles[0].rowbuf, 0, ofiles[0].rowsize);
/* make up the row */
for(j=0; j<nfile; j++){
if( !flags[j] ){
/* move blanks into output record for this row */
IPRINTF((stderr, "blank "));
memcpy(ofiles[0].rowbuf+files[j].rowoffset,
files[j].blank, files[j].rowsize);
}
/* retrieve data and transfer active columns to output */
else{
ii = ifiles[j].counter;
IPRINTF((stderr, "%d ", ifiles[j].indexes[ii]));
if( FunTableRowSeek(files[j].fun, ifiles[j].indexes[ii], NULL) <0 ){
gerror(stderr, "can't seek to row %d: %s\n",
ifiles[j].indexes[ii], ifiles[j].fname);
}
if( !(buf=FunTableRowGet(files[j].fun, NULL, 1, NULL, &got)) || !got ){
gerror(stderr, "can't read row %d: %s\n",
ifiles[j].indexes[ii], ifiles[j].fname);
}
rowptr = ofiles[0].rowbuf+files[j].rowoffset;
for(k=0; k<files[j].ncol; k++){
memcpy(rowptr, buf+files[j].cols[k].offset, files[j].cols[k].width);
rowptr += files[j].cols[k].width;
}
if( jbits ) jfiles[j/JBITSIZE] |= 1<<(j%JBITSIZE);
if( buf ) xfree(buf);
}
}
/* save jfiles flag value, if necessary */
if( jbits ){
rowptr = ofiles[0].rowbuf + ofiles[0].rowoffset;
memcpy(rowptr, jfiles, jbits);
}
/* write row */
IPRINTF((stderr, "\n"));
if( !FunTableRowPut(ofiles[0].fun, ofiles[0].rowbuf, 1, 0, NULL) ){
gerror(stderr, "can't write output row\n");
}
/* inc to next row */
for(j=nmatch-1; j>=0; j--){
ii = matches[j];
ifiles[ii].counter++;
if( ifiles[ii].counter >= ifiles[ii].nindex ){
ifiles[ii].counter = 0;
}
else{
break;
}
}
}
/* free up space */
if( flags ) xfree(flags);
if( jfiles) xfree(jfiles);
return 1;
}
#ifdef ANSI_FUNC
static void
JoinResetRows(XFile ifiles, char *matches, int nmatch, int resetflag)
#else
static void
JoinResetRows(ifiles, matches, nmatch, resetflag)
XFile ifiles;
char *matches;
int nmatch;
int resetflag;
#endif
{
int i, j;
/* reset index positions so that we re-check tolerances */
if( resetflag >= 0 ){
for(j=0; j<nmatch; j++){
i = matches[j];
if( !ifiles[i].ibase && (ifiles[i].irow>=0) ){
ifiles[i].eof = 0;
FunTableRowSeek(ifiles[i].fun, ifiles[i].irow, NULL);
JoinReadNext(ifiles, i, i);
}
}
}
}
#ifdef ANSI_FUNC
int
main (int argc, char **argv)
#else
int
main(argc, argv)
int argc;
char **argv;
#endif
{
int i, j, k;
int type, mode, offset, n, width;
int namei;
int coffset;
int resetflag=-1;
int jbits=0;
int nmatch=0;
int minmatch=1;
int maxmatch=MAXIFILE;
int nfile=0;
int tcol=0;
int osize=0;
int oncol=0;
int ktype=0;
int *ooffsets=NULL;
char *matches=NULL;
char *name;
char *basename;
char *defact=NULL;
char *defcol=NULL;
char *defblank=NULL;
char *s;
char *filtstr;
char *jfiles=NULL;
char **onames=NULL;
char **otypes=NULL;
char **omodes=NULL;
char tbuf[SZ_LINE];
char tbuf2[SZ_LINE];
char namebuf[SZ_LINE];
double tlmin, tlmax, binsiz, tscale, tzero;
double tol;
XFile files=NULL, ifiles=NULL, ofiles=NULL;
/* exit on gio errors */
if( !getenv("GERROR") )
setgerror(2);
/* get maxrow,if user-specified */
if( (s=getenv("FUN_MAXROW")) != NULL )
maxrow = atoi(s);
/* we are using indexes specially and don't want to use them normally */
putenv("FILTER_IDX_ACTIVATE=false");
/* allocate input and output file arrays (we'll do the index array later) */
if( !(files=xcalloc(MAXIFILE, sizeof(XFileRec))) ){
gerror(stderr, "can't allocate primary record structure for join\n");
}
if( !(ofiles=xcalloc(MAXOFILE, sizeof(XFileRec))) ){
gerror(stderr, "can't allocate output record structure for join\n");
}
/* process arguments */
for(i=1; i<argc; i++) {
if ( argv[i][0] == '-' ) {
switch (argv[i][1]) {
case 'a':
if( argv[i][2] ){
j = atoi(&argv[i][2])-1;
if( (j >= 0) && (j < MAXIFILE) && (i < argc-1)){
files[j].actstr = argv[++i];
}
else{
gerror(stderr, "invalid index for column activate: %d\n", j+1);
}
}
else{
defact = argv[++i];
}
break;
case 'b':
if( argv[i][2] ){
j = atoi(&argv[i][2])-1;
if( (j >= 0) && (j < MAXIFILE) && (i < argc-1)){
files[j].bstr = argv[++i];
}
else{
gerror(stderr, "invalid index for join column: %d\n", j+1);
}
}
else{
defblank = argv[++i];
}
break;
case 'j':
if( argv[i][2] ){
j = atoi(&argv[i][2])-1;
if( (j >= 0) && (j < MAXIFILE) && (i < argc-1)){
files[j].jname = argv[++i];
}
else{
gerror(stderr, "invalid index for join column: %d\n", j+1);
}
}
else{
if (i < argc-1) {
defcol = argv[++i];
}
}
break;
case 'm':
if (i < argc-1) {
minmatch = atoi(argv[++i])+1;
}
if( minmatch < 1 ) minmatch = 1;
break;
case 'M':
if (i < argc-1) {
maxmatch = atoi(argv[++i])+1;
}
if( maxmatch < 1 ) maxmatch = 1;
break;
case 's':
jfiles = JFILES_COL;
break;
case 'S':
if (i < argc-1) {
jfiles = argv[++i];
}
break;
case 't':
if (i < argc-1) {
tol = atof(argv[++i]);
}
if( tol <= 0 ){
gerror(stderr, "tolerance value must be positive\n");
}
break;
}
continue;
}
/* no switch -- must be a file name */
if( nfile < MAXIFILE ){
files[nfile].fname = argv[i];
nfile++;
}
else{
gerror(stderr, "too many files (%d > %d)\n", nfile, MAXIFILE);
}
}
/* make sure we have at least 2 input + 1 output file args */
if( nfile < 3 ) usage(argv[0]);
/* for now, tolerance only works with 2 files */
if( (tol > 0.0) && (nfile > 3) ){
gerror(stderr, "for now, -t [tol] can only join 2 files\n");
}
/* move last input to output and decrement number of input files */
ofiles[0].fname = files[nfile-1].fname;
nfile--;
/* reallocate input files */
if( !(files=xrealloc(files, nfile*sizeof(XFileRec))) ){
gerror(stderr, "can't re-allocate primary record structure for join\n");
}
/* make sure we have a join column name for each file */
for(i=0; i<nfile; i++){
if( !files[i].jname ){
if( defcol ){
files[i].jname = defcol;
}
else{
gerror(stderr,
"no join column specified for file: %s\n", files[i].fname);
}
}
}
/* allocate exact number of index file records */
if( !(ifiles=xcalloc(nfile, sizeof(XFileRec))) ){
gerror(stderr, "can't allocate primary record structure for join\n");
}
if( !(matches=(char *)xcalloc(nfile, sizeof(char))) ){
gerror(stderr, "can't allocate key result buffer\n");
}
/* open input and index files */
for(i=0; i<nfile; i++){
/* open the input data file */
if( !(files[i].fun = FunOpen(files[i].fname, "r", NULL)) ){
gerror(stderr,
"can't FunOpen input file (or find extension): %s\n",
files[i].fname);
}
/* make sure the join column is in this file */
if( !FunColumnLookup(files[i].fun, files[i].jname, 0, NULL,
&files[i].jtype,
&files[i].jmode,
&files[i].joffset,
&files[i].jn,
&files[i].jwidth) ){
gerror(stderr, "can't find column %s in input file: %s\n",
files[i].jname, files[i].fname);
}
/* check for filter (we read index directly, bypassing filters) */
filtstr=NULL;
FunInfoGet(files[i].fun, FUN_FILTER, &filtstr, 0);
if( filtstr && *filtstr ){
gerror(stderr, "row filters are not permitted: %s\n", files[i].fname);
}
/* activate specified columns */
if( files[i].actstr )
FunColumnActivate(files[i].fun, files[i].actstr, NULL);
else
FunColumnActivate(files[i].fun, defact, NULL);
/* reset rowoffset flag for this file */
files[i].rowoffset = -1;
/* get number of possible columns */
FunInfoGet(files[i].fun, FUN_NCOL, &(files[i].tcol), 0);
/* temp counter of total number of columns */
tcol += files[i].tcol;
/* open the index for the specified join column */
idxinitfilenames(files[i].fun->header->filename, NULL);
s = idxindexfilename(files[i].jname, NULL);
idxfreefilenames();
if( !s ){
gerror(stderr, "can't find index file for column '%s' in file: %s\n",
files[i].jname, files[i].fname);
}
if( !(ifiles[i].fun = FunOpen(s, "r", NULL)) ){
gerror(stderr, "can't FunOpen index file (or find extension): %s\n", s);
}
/* get gio handle for seeking and sving */
FunInfoGet(ifiles[i].fun, FUN_GIO, &ifiles[i].igio, 0);
/* make sure the join column is in the index file */
ifiles[i].fname = xstrdup(s);
ifiles[i].jname = files[i].jname;
if( !FunColumnLookup(ifiles[i].fun, ifiles[i].jname, 0, NULL,
&ifiles[i].jtype,
&ifiles[i].jmode,
&ifiles[i].joffset,
&ifiles[i].jn,
&ifiles[i].jwidth) ){
gerror(stderr, "can't find column %s in index file: %s\n",
ifiles[i].jname, ifiles[i].fname);
}
/* define how we will read index file, based on data type of join column */
switch(ifiles[i].jtype){
case 'B':
case 'I':
case 'J':
case 'K':
case 'U':
case 'V':
case 'L':
case 'X':
FunColumnSelect(ifiles[i].fun, sizeof(XFileRec), NULL,
"n", "J", "r", FUN_OFFSET(XFile, idx),
ifiles[i].jname, "D", "r", FUN_OFFSET(XFile, dval),
NULL);
ifiles[i].dtype = 'D';
ktype |= KEY_NUMERIC;
break;
case 'D':
case 'E':
FunColumnSelect(ifiles[i].fun, sizeof(XFileRec), NULL,
"n", "J", "r", FUN_OFFSET(XFile, idx),
ifiles[i].jname, "D", "r", FUN_OFFSET(XFile, dval),
NULL);
ifiles[i].dtype = 'D';
ktype |= KEY_NUMERIC;
break;
case 'A':
snprintf(tbuf, SZ_LINE-1, "@%dA", ifiles[i].jn);
FunColumnSelect(ifiles[i].fun, sizeof(XFileRec), NULL,
"n", "J", "r", FUN_OFFSET(XFile, idx),
ifiles[i].jname, tbuf, "r", FUN_OFFSET(XFile, sval),
NULL);
ifiles[i].dtype = 'A';
ifiles[i].sval = xcalloc(ifiles[i].jn+1, sizeof(char));
ktype |= KEY_STRING;
break;
default:
gerror(stderr, "bad datatype for join column: %c\n", ifiles[i].jtype);
}
/* free up temp space */
if( s ) xfree(s);
}
/* we don't allow mixing of string and numeric values */
if( ktype == (KEY_STRING|KEY_NUMERIC) ){
gerror(stderr, "can't mix string and numeric join columns\n");
}
/* open output file */
if( !(ofiles[0].fun = FunOpen(ofiles[0].fname, "w", NULL)) ){
gerror(stderr, "can't FunOpen output file: %s\n", ofiles[0].fname);
}
/* allocate space for the max number of columns we can have (incl jfiles) */
onames = (char **)xcalloc(tcol+1, sizeof(char *));
otypes = (char **)xcalloc(tcol+1, sizeof(char *));
omodes = (char **)xcalloc(tcol+1, sizeof(char *));
ooffsets = (int *)xcalloc(tcol+1, sizeof(int));
/* contruct list of output columns */
for(i=0; i<nfile; i++){
coffset = 0;
for(j=0; j<files[i].tcol; j++){
if( !FunColumnLookup(files[i].fun, NULL, j,
&name, &type, &mode, &offset, &n, &width) ){
gerror(stderr,
"can't find column %d in input file: %s\n", j, files[i].fname);
}
if( mode & COL_ACTIVE ){
/* save original name in case of duplicate */
basename = name;
/* first numeric value we will append */
namei = 2;
again:
for(k=0; k<oncol; k++){
if( !strcasecmp(name, onames[k]) ){
k = -1;
break;
}
}
/* append a file number to duplicate names */
if( k < 0 ){