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#include <stdio.h>
#include <string.h>
#include <funtoolsP.h>
static char macrobuf[SZ_LINE];
typedef struct hcstruct{
int args;
int eflag;
int clen;
int maxlen;
char *fmt;
char *expr;
char mbuf[SZ_LINE];
char tbuf[SZ_LINE];
} *HC, HCRec;
static char *_HeadColumnCB(char *name, void *client_data)
{
HC hc = (HC)client_data;
/* macro replacement */
if( !strcmp(name, "name") || !strcmp(name, "col") ){
if( strchr(hc->mbuf, 'n') ){
hc->eflag = 1;
gerror(stderr,
"$%s can only be specified once in headcol format\n", name);
return NULL;
}
strncpy(macrobuf, "%s", SZ_LINE);
strncat(hc->mbuf, "n", SZ_LINE);
hc->args++;
return macrobuf;
}
else if( !strcmp(name, "format") || !strcmp(name, "fmt") ){
if( strchr(hc->mbuf, 'f') ){
hc->eflag = 1;
gerror(stderr,
"$%s can only be specified once in headcol format\n", name);
return NULL;
}
strncpy(macrobuf, "%[a-zA-Z0-9.]", SZ_LINE);
strncat(hc->mbuf, "f", SZ_LINE);
hc->args++;
return macrobuf;
}
else if( !strcmp(name, "skip") ){
strncpy(macrobuf, "%*s", SZ_LINE);
return macrobuf;
}
else if( !strcmp(name, "skipi") ){
strncpy(macrobuf, "%*d", SZ_LINE);
return macrobuf;
}
else if( !strcmp(name, "skipf") ){
strncpy(macrobuf, "%*f", SZ_LINE);
return macrobuf;
}
else{
return NULL;
}
}
void HeadColumnFree(HC hc)
{
/* sanity check */
if( !hc ) return;
if( hc->fmt ) xfree(hc->fmt);
xfree(hc);
}
HC HeadColumnNew(char *s)
{
HC hc=NULL;
/* sanity check */
if( !s ) return NULL;
/* allocate record */
if( !(hc=xcalloc(1, sizeof(HCRec))) ) return NULL;
/* expand format specification to make a scanf format */
if( !(hc->fmt = ExpandMacro(s, NULL, NULL, 0, _HeadColumnCB, hc)) ||
hc->eflag ){
HeadColumnFree(hc);
return NULL;
}
fprintf(stderr, "format: %s mbuf=%s args=%d\n", hc->fmt, hc->mbuf, hc->args);
return hc;
}
char *HeadColumnProcess(HC hc, char *s)
{
int got;
int len;
char tbuf[SZ_LINE];
char tbuf1[SZ_LINE];
char tbuf2[SZ_LINE];
/* sanity check */
if( !hc || !*hc->mbuf || !hc->fmt || !s ) return NULL;
/* clear buffers */
*tbuf = '\0';
*tbuf1 = '\0';
*tbuf2 = '\0';
if( !strcmp(hc->mbuf, "n") ){
if( (got = sscanf(s, hc->fmt, tbuf1)) != hc->args ) return NULL;
strncpy(tbuf, tbuf1, SZ_LINE);
}
else if( !strcmp(hc->mbuf, "f") ){
if( (got = sscanf(s, hc->fmt, tbuf1)) != hc->args ) return NULL;
strncpy(tbuf, tbuf1, SZ_LINE);
}
else if( !strcmp(hc->mbuf, "nf") ){
if( (got = sscanf(s, hc->fmt, tbuf1, tbuf2)) != hc->args ) return NULL;
switch(*tbuf2){
case 'I':
snprintf(tbuf, SZ_LINE, "%s:J", tbuf1);
break;
case 'F':
snprintf(tbuf, SZ_LINE, "%s:D", tbuf1);
break;
case 'A':
snprintf(tbuf, SZ_LINE, "%s:%s", tbuf1, tbuf2);
break;
default:
snprintf(tbuf, SZ_LINE, "%s:%s", tbuf1, tbuf2);
break;
}
}
else if( !strcmp(hc->mbuf, "fn") ){
if( (got = sscanf(s, hc->fmt, tbuf1, tbuf2)) != hc->args ) return NULL;
switch(*tbuf2){
case 'I':
snprintf(tbuf, SZ_LINE, "%s:J", tbuf2);
break;
case 'F':
snprintf(tbuf, SZ_LINE, "%s:D", tbuf2);
break;
case 'A':
snprintf(tbuf, SZ_LINE, "%s:%s", tbuf2, tbuf1);
break;
default:
snprintf(tbuf, SZ_LINE, "%s:%s", tbuf2, tbuf1);
break;
}
}
else{
*tbuf = '\0';
}
/* add to expression */
if( hc->tbuf ){
len = strlen(tbuf);
if( (len + hc->clen + 1) >= hc->maxlen ){
while( (len + hc->clen +1) > hc->maxlen ){
hc->maxlen += SZ_LINE;
}
if( hc->clen == 0 )
hc->expr = (char *)xcalloc(hc->maxlen, sizeof(char));
else
hc->expr = (char *)xrealloc(hc->expr, hc->maxlen);
}
if( *hc->expr ) strncat(hc->expr, ",", SZ_LINE-1);
strncat(hc->expr, tbuf, SZ_LINE-1);
}
/* return what we just got */
return hc->tbuf;
}
char *HeadColumnExpr(HC hc)
{
/* sanity check */
if( !hc ) return NULL;
/* return current expression */
return hc->expr;
}
int main(int argc, char **argv)
{
int i;
char *fptr=NULL;
char *expr=NULL;
char *lptr;
char lbuf[SZ_LINE];
HC hc;
if( argc >= 2 ){
fptr = argv[1];
}
else{
fptr = "Column $name ($format)";
}
/* initialize columnheader priocessing */
if( !(hc = HeadColumnNew(fptr)) ){
gerror(stderr, "can't init headcolumn\n");
return 1;
}
/* read comment lines and look for column specifications */
if( argc > 2 ){
for(i=2; i<argc; i++){
strncpy(lbuf, argv[i], SZ_LINE);
lptr = lbuf;
if( *lptr == '#' ) lptr++;
if( HeadColumnProcess(hc, lptr) ){
fprintf(stderr, "+");
}
}
}
else{
while( fgets(lbuf, SZ_LINE, stdin) ){
lptr = lbuf;
if( *lptr == '#' ) lptr++;
if( HeadColumnProcess(hc, lptr) ){
fprintf(stderr, "+");
}
}
}
/* display result -- the column specification */
if( HeadColumnExpr(hc) ){
fprintf(stderr, "\n%s\n", HeadColumnExpr(hc));
}
/* clean up */
HeadColumnFree(hc);
return 0;
}
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