493 static void parse_options_start(struct parse_opt_ctx_t *ctx,  in parse_options_start()  argument
496 	memset(ctx, 0, sizeof(*ctx));  in parse_options_start()
497 	ctx->argc = argc - 1;  in parse_options_start()
498 	ctx->argv = argv + 1;  in parse_options_start()
499 	ctx->out  = argv;  in parse_options_start()
500 	ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0);  in parse_options_start()
501 	ctx->flags = flags;  in parse_options_start()
511 static int parse_options_step(struct parse_opt_ctx_t *ctx,  in parse_options_step()  argument
515 	int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);  in parse_options_step()
520 	ctx->opt = NULL;  in parse_options_step()
522 	for (; ctx->argc; ctx->argc--, ctx->argv++) {  in parse_options_step()
523 		arg = ctx->argv[0];  in parse_options_step()
525 			if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)  in parse_options_step()
527 			ctx->out[ctx->cpidx++] = ctx->argv[0];  in parse_options_step()
532 			ctx->opt = ++arg;  in parse_options_step()
533 			if (internal_help && *ctx->opt == 'h') {  in parse_options_step()
534 				return usage_with_options_internal(usagestr, options, 0, ctx);  in parse_options_step()
536 			switch (parse_short_opt(ctx, options)) {  in parse_options_step()
546 			if (ctx->opt)  in parse_options_step()
548 			while (ctx->opt) {  in parse_options_step()
549 				if (internal_help && *ctx->opt == 'h')  in parse_options_step()
550 					return usage_with_options_internal(usagestr, options, 0, ctx);  in parse_options_step()
551 				arg = ctx->opt;  in parse_options_step()
552 				switch (parse_short_opt(ctx, options)) {  in parse_options_step()
561 					ctx->argv[0] = strdup(ctx->opt - 1);  in parse_options_step()
562 					*(char *)ctx->argv[0] = '-';  in parse_options_step()
574 			if (!(ctx->flags & PARSE_OPT_KEEP_DASHDASH)) {  in parse_options_step()
575 				ctx->argc--;  in parse_options_step()
576 				ctx->argv++;  in parse_options_step()
583 			return usage_with_options_internal(usagestr, options, 1, ctx);  in parse_options_step()
585 			return usage_with_options_internal(usagestr, options, 0, ctx);  in parse_options_step()
590 		switch (parse_long_opt(ctx, arg, options)) {  in parse_options_step()
603 		if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN))  in parse_options_step()
605 		ctx->out[ctx->cpidx++] = ctx->argv[0];  in parse_options_step()
606 		ctx->opt = NULL;  in parse_options_step()
612 	if ((excl_short_opt && ctx->excl_opt->short_name) ||  in parse_options_step()
613 	    ctx->excl_opt->long_name == NULL) {  in parse_options_step()
614 		char opt = ctx->excl_opt->short_name;  in parse_options_step()
617 		parse_options_usage(NULL, options, ctx->excl_opt->long_name, 0);  in parse_options_step()
622 static int parse_options_end(struct parse_opt_ctx_t *ctx)  in parse_options_end()  argument
624 	memmove(ctx->out + ctx->cpidx, ctx->argv, ctx->argc * sizeof(*ctx->out));  in parse_options_end()
625 	ctx->out[ctx->cpidx + ctx->argc] = NULL;  in parse_options_end()
626 	return ctx->cpidx + ctx->argc;  in parse_options_end()
632 	struct parse_opt_ctx_t ctx;  in parse_options_subcommand()  local
650 	parse_options_start(&ctx, argc, argv, flags);  in parse_options_subcommand()
651 	switch (parse_options_step(&ctx, options, usagestr)) {  in parse_options_subcommand()
672 		if (ctx.argv[0][1] == '-')  in parse_options_subcommand()
674 				 ctx.argv[0] + 2);  in parse_options_subcommand()
676 			astrcatf(&error_buf, "unknown switch `%c'", *ctx.opt);  in parse_options_subcommand()
680 	return parse_options_end(&ctx);  in parse_options_subcommand()
824 static bool option__in_argv(const struct option *opt, const struct parse_opt_ctx_t *ctx)  in option__in_argv()  argument
828 	for (i = 1; i < ctx->argc; ++i) {  in option__in_argv()
829 		const char *arg = ctx->argv[i];  in option__in_argv()
857 				       struct parse_opt_ctx_t *ctx)  in usage_with_options_internal()  argument
889 		if (ctx && ctx->argc > 1 && !option__in_argv(opts, ctx))  in usage_with_options_internal()