[PATCH 4/6] parse-options: make resuming easier after PARSE_OPT_STOP_AT_NON_OPTION

[Jonathan Nieder <jrnieder@gmail.com>]

Introduce a PARSE_OPT_NON_OPTION state, so parse_option_step()
callers can easily distinguish between non-options and other
reasons for option parsing termination (like "--").

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
As before.

 parse-options.c |    3 ++-
 parse-options.h |    1 +
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/parse-options.c b/parse-options.c
index 38c8fd3..df8299c 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -384,7 +384,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
 			if (parse_nodash_opt(ctx, arg, options) == 0)
 				continue;
 			if (ctx->flags & PARSE_OPT_STOP_AT_NON_OPTION)
-				break;
+				return PARSE_OPT_NON_OPTION;
 			ctx->out[ctx->cpidx++] = ctx->argv[0];
 			continue;
 		}
@@ -466,6 +466,7 @@ int parse_options(int argc, const char **argv, const char *prefix,
 	switch (parse_options_step(&ctx, options, usagestr)) {
 	case PARSE_OPT_HELP:
 		exit(129);
+	case PARSE_OPT_NON_OPTION:
 	case PARSE_OPT_DONE:
 		break;
 	default: /* PARSE_OPT_UNKNOWN */
diff --git a/parse-options.h b/parse-options.h
index bd0fe16..2cd23af 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -167,6 +167,7 @@ extern NORETURN void usage_msg_opt(const char *msg,
 enum {
 	PARSE_OPT_HELP = -1,
 	PARSE_OPT_DONE,
+	PARSE_OPT_NON_OPTION,
 	PARSE_OPT_UNKNOWN
 };
 
-- 
1.7.2.3