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	blind-colour-ciexyz.c - blind - suckless command-line video editing utility
	git clone git://git.suckless.org/blind
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	---
	blind-colour-ciexyz.c (832B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include "common.h"
	3
	4 USAGE("[-% format] (X Y Z \| Y)")
	5
	6 int
	7 main(int argc, char *argv[])
	8 {
	9 double X, Y, Z;
	10 const char *fmt = NULL;
	11
	12 ARGBEGIN {
	13 case '%':
	14 fmt = UARGF();
	15 break;
	16 default:
	17 usage();
	18 } ARGEND;
	19
	20 if (argc == 1) {
	21 fmt = select_print_format("%! %! %!\n", DOUBLE, fmt);
	22 Y = etolf_arg("the Y value", argv[0]);
	23 X = Y * D65_XYZ_X;
	24 Z = Y * D65_XYZ_Z;
	25 printf(fmt, X, Y, Z);
	26 } else if (argc == 3 && fmt) {
	27 fmt = select_print_format("%! %! %!\n", DOUBLE, fmt);
	28 X = etolf_arg("the X value", argv[0]);
	29 Y = etolf_arg("the Y value", argv[1]);
	30 Z = etolf_arg("the Z value", argv[2]);
	31 printf(fmt, X, Y, Z);
	32 } else if (argc == 3) {
	33 printf("%s %s %s\n", argv[0], argv[1], argv[2]);
	34 } else {
	35 usage();
	36 }
	37
	38 efshut(stdout, "<stdout>");
	39 return 0;
	40 }