#include  <stdio.h>
#include  <string.h>

#include  "../floatimg.h"

extern int verbosity;		/* must be declared around main() */

/* --------------------------------------------------------------------- */
int parse_WxH(char *str, int *pw, int *ph)
{
// char			*ptr;
int			foo, w, h;

#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' %p %p )\n", __func__,
				str, pw, ph);
#endif

foo = sscanf(str, "%dx%d", &w, &h);
if (2 != foo) {
	fprintf(stderr, "%s : arg '%s' is invalid\n", __func__, str);
	return foo;
	}

*pw = w;	*ph = h;

return 2;
}
/* --------------------------------------------------------------------- */
int parse_double(char *str, double *dptr)
{
double		value;
int		foo;

foo = sscanf(str, "%lf", &value);
if (1 == foo) {
	*dptr = value;
	return 1;
	}
return -1;
}
/* --------------------------------------------------------------------- */
int format_from_extension(char *fname)
{
char		*cptr;

cptr = rindex(fname, '.');
if (NULL==cptr) {
	fprintf(stderr, "No dot in %s\n", fname);
	return -1;
	}

#if DEBUG_LEVEL
fprintf(stderr, "[%s]  -->  [%s]\n", fname, cptr);
#endif

if (!strcasecmp(cptr, ".pnm" ))	return FILE_TYPE_PNM;
if (!strcasecmp(cptr, ".fimg"))	return FILE_TYPE_FIMG;
if (!strcasecmp(cptr, ".tga" ))	return FILE_TYPE_TGA;
if (!strcasecmp(cptr, ".png" ))	return FILE_TYPE_PNG;
if (!strcasecmp(cptr, ".tiff"))	return FILE_TYPE_TIFF;
if (!strcasecmp(cptr, ".tif" ))	return FILE_TYPE_TIFF;
if (!strcasecmp(cptr, ".fits"))	return FILE_TYPE_FITS;

return -1;
}
/* --------------------------------------------------------------------- */