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#include "ipf.h"
#include <err.h>
extern int nohdrfields;
wordtab_t *parsefields(table, arg)
wordtab_t *table;
char *arg;
{
wordtab_t *f, *fields;
char *s, *t;
int num;
fields = NULL;
num = 0;
for (s = strtok(arg, ","); s != NULL; s = strtok(NULL, ",")) {
t = strchr(s, '=');
if (t != NULL) {
*t++ = '\0';
if (*t == '\0')
nohdrfields = 1;
}
f = findword(table, s);
if (f == NULL) {
fprintf(stderr, "Unknown field '%s'\n", s);
exit(1);
}
num++;
if (fields == NULL) {
fields = malloc(2 * sizeof(*fields));
} else {
fields = realloc(fields, (num + 1) * sizeof(*fields));
if (fields == NULL) {
warnx("memory allocation error at %d in %s in %s", __LINE__, __FUNCTION__, __FILE__);
abort();
}
}
if (t == NULL) {
fields[num - 1].w_word = f->w_word;
} else {
fields[num - 1].w_word = t;
}
fields[num - 1].w_value = f->w_value;
fields[num].w_word = NULL;
fields[num].w_value = 0;
}
return fields;
}
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