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	blind-skip-pattern.c - blind - suckless command-line video editing utility
	git clone git://git.suckless.org/blind
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	---
	blind-skip-pattern.c (1172B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include "common.h"
	3
	4 USAGE("(skipped-frames \| +included-frames) ...")
	5
	6 int
	7 main(int argc, char *argv[])
	8 {
	9 struct stream stream;
	10 int i, include, outfd;
	11 size_t f, n, total = 0;
	12 char *includes;
	13 size_t *ns;
	14
	15 UNOFLAGS(!argc);
	16
	17 eopen_stream(&stream, NULL);
	18
	19 includes = emalloc((size_t)argc);
	20 ns = ecalloc((size_t)argc, sizeof(*ns));
	21
	22 for (i = 0; i < argc; i++) {
	23 include = argv[i][0] == '+';
	24 n = etozu_arg(include ? "included frame count" : "skippe…
	25 argv[i] + include, 0, SIZE_MAX);
	26 total += ns[i] = n;
	27 includes[i] = (char)include;
	28 }
	29 if (!total)
	30 eprintf("null pattern is not allowed");
	31
	32 for (i = 0, total = 0, f = stream.frames; f; i = (i + 1) % argc)…
	33 include = (int)includes[i];
	34 for (n = ns[i]; n-- && f--;)
	35 total += (size_t)include;
	36 }
	37
	38 stream.frames = total;
	39 echeck_dimensions(&stream, WIDTH, NULL);
	40 fprint_stream_head(stdout, &stream);
	41 efflush(stdout, "<stdout>");
	42
	43 for (i = 0;; i = (i + 1) % argc) {
	44 outfd = includes[i] ? STDOUT_FILENO : -1;
	45 if (!esend_frames(&stream, outfd, ns[i], "<stdout>"))
	46 break;
	47 }
	48
	49 free(includes);
	50 free(ns);
	51 return 0;
	52 }