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parse-options: deduplicate parse_options_usage() calls

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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>
This commit is contained in:
René Scharfe 2015-11-17 11:25:14 +01:00 committed by Jeff King
parent 0c83680e9c
commit ac20ff6daa
1 changed files with 12 additions and 6 deletions
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18
parse-options.c
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@ -435,6 +435,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
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 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
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 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
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 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
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 @@ unknown:
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)