360 void parse_options_start(struct parse_opt_ctx_t *ctx,  in parse_options_start()  argument
363 	memset(ctx, 0, sizeof(*ctx));  in parse_options_start()
364 	ctx->argc = argc - 1;  in parse_options_start()
365 	ctx->argv = argv + 1;  in parse_options_start()
366 	ctx->out  = argv;  in parse_options_start()
367 	ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0);  in parse_options_start()
368 	ctx->flags = flags;  in parse_options_start()
377 int parse_options_step(struct parse_opt_ctx_t *ctx,  in parse_options_step()  argument
381 	int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);  in parse_options_step()
386 	ctx->opt = NULL;  in parse_options_step()
388 	for (; ctx->argc; ctx->argc--, ctx->argv++) {  in parse_options_step()
389 		arg = ctx->argv[0];  in parse_options_step()
391 			if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)  in parse_options_step()
393 			ctx->out[ctx->cpidx++] = ctx->argv[0];  in parse_options_step()
398 			ctx->opt = ++arg;  in parse_options_step()
399 			if (internal_help && *ctx->opt == 'h')  in parse_options_step()
401 			switch (parse_short_opt(ctx, options)) {  in parse_options_step()
411 			if (ctx->opt)  in parse_options_step()
413 			while (ctx->opt) {  in parse_options_step()
414 				if (internal_help && *ctx->opt == 'h')  in parse_options_step()
416 				arg = ctx->opt;  in parse_options_step()
417 				switch (parse_short_opt(ctx, options)) {  in parse_options_step()
426 					ctx->argv[0] = strdup(ctx->opt - 1);  in parse_options_step()
427 					*(char *)ctx->argv[0] = '-';  in parse_options_step()
439 			if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) {  in parse_options_step()
440 				ctx->argc--;  in parse_options_step()
441 				ctx->argv++;  in parse_options_step()
455 		switch (parse_long_opt(ctx, arg, options)) {  in parse_options_step()
468 		if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN))  in parse_options_step()
470 		ctx->out[ctx->cpidx++] = ctx->argv[0];  in parse_options_step()
471 		ctx->opt = NULL;  in parse_options_step()
477 	if ((excl_short_opt && ctx->excl_opt->short_name) ||  in parse_options_step()
478 	    ctx->excl_opt->long_name == NULL) {  in parse_options_step()
479 		char opt = ctx->excl_opt->short_name;  in parse_options_step()
482 		parse_options_usage(NULL, options, ctx->excl_opt->long_name, 0);  in parse_options_step()
487 int parse_options_end(struct parse_opt_ctx_t *ctx)  in parse_options_end()  argument
489 	memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));  in parse_options_end()
490 	ctx->out[ctx->cpidx + ctx->argc] = NULL;  in parse_options_end()
491 	return ctx->cpidx + ctx->argc;  in parse_options_end()
497 	struct parse_opt_ctx_t ctx;  in parse_options_subcommand()  local
517 	parse_options_start(&ctx, argc, argv, flags);  in parse_options_subcommand()
518 	switch (parse_options_step(&ctx, options, usagestr)) {  in parse_options_subcommand()
539 		if (ctx.argv[0][1] == '-') {  in parse_options_subcommand()
540 			error("unknown option `%s'", ctx.argv[0] + 2);  in parse_options_subcommand()
542 			error("unknown switch `%c'", *ctx.opt);  in parse_options_subcommand()
547 	return parse_options_end(&ctx);  in parse_options_subcommand()