parse-options: deduplicate parse_options_usage() calls
Avoid long lines and repeating parse_options_usage() calls with their
duplicate parameters by providing labels with speaking names to jump to.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Jeff King <peff@peff.net>
diff --git a/parse-options.c b/parse-options.c
index 3eceba4..f0b6d9b 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -435,6 +435,7 @@
const char * const usagestr[])
{
int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
+ int err = 0;
/* we must reset ->opt, unknown short option leave it dangling */
ctx->opt = NULL;
@@ -454,10 +455,10 @@
if (arg[1] != '-') {
ctx->opt = arg + 1;
if (internal_help && *ctx->opt == 'h')
- return parse_options_usage(ctx, usagestr, options, 0);
+ goto show_usage;
switch (parse_short_opt(ctx, options)) {
case -1:
- return parse_options_usage(ctx, usagestr, options, 1);
+ goto show_usage_error;
case -2:
if (ctx->opt)
check_typos(arg + 1, options);
@@ -467,10 +468,10 @@
check_typos(arg + 1, options);
while (ctx->opt) {
if (internal_help && *ctx->opt == 'h')
- return parse_options_usage(ctx, usagestr, options, 0);
+ goto show_usage;
switch (parse_short_opt(ctx, options)) {
case -1:
- return parse_options_usage(ctx, usagestr, options, 1);
+ goto show_usage_error;
case -2:
/* fake a short option thing to hide the fact that we may have
* started to parse aggregated stuff
@@ -496,10 +497,10 @@
if (internal_help && !strcmp(arg + 2, "help-all"))
return usage_with_options_internal(ctx, usagestr, options, 1, 0);
if (internal_help && !strcmp(arg + 2, "help"))
- return parse_options_usage(ctx, usagestr, options, 0);
+ goto show_usage;
switch (parse_long_opt(ctx, arg + 2, options)) {
case -1:
- return parse_options_usage(ctx, usagestr, options, 1);
+ goto show_usage_error;
case -2:
goto unknown;
}
@@ -511,6 +512,11 @@
ctx->opt = NULL;
}
return PARSE_OPT_DONE;
+
+ show_usage_error:
+ err = 1;
+ show_usage:
+ return parse_options_usage(ctx, usagestr, options, err);
}
int parse_options_end(struct parse_opt_ctx_t *ctx)
