* [PATCH 3/4] parse-options: add new function "usage_msg_opt"
@ 2009-02-02 5:12 Christian Couder
0 siblings, 0 replies; only message in thread
From: Christian Couder @ 2009-02-02 5:12 UTC (permalink / raw
To: Junio C Hamano, Pierre Habouzit; +Cc: git
This function can be used instead of "usage_with_options" when you
want to print an error message before the usage string.
It may be useful because:
if (condition)
usage_msg_opt("condition is false", usage, opts);
is shorter than:
if (condition) {
fprintf(stderr, "condition is false\n\n");
usage_with_options(usage, opts);
}
and may be more consistent.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
parse-options.c | 8 ++++++++
parse-options.h | 4 ++++
2 files changed, 12 insertions(+), 0 deletions(-)
This patch may be generaly useful.
diff --git a/parse-options.c b/parse-options.c
index 4c5d09d..7a5fde8 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -449,6 +449,14 @@ void usage_with_options(const char * const *usagestr,
exit(129);
}
+void usage_msg_opt(const char *msg,
+ const char * const *usagestr,
+ const struct option *options)
+{
+ fprintf(stderr, "%s\n\n", msg);
+ usage_with_options(usagestr, options);
+}
+
int parse_options_usage(const char * const *usagestr,
const struct option *opts)
{
diff --git a/parse-options.h b/parse-options.h
index 9122905..6061a19 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -113,6 +113,10 @@ extern int parse_options(int argc, const char **argv,
extern NORETURN void usage_with_options(const char * const *usagestr,
const struct option *options);
+extern NORETURN void usage_msg_opt(const char *msg,
+ const char * const *usagestr,
+ const struct option *options);
+
/*----- incremantal advanced APIs -----*/
enum {
--
1.6.1.2.353.g99fdd.dirty
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2009-02-02 5:14 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-02-02 5:12 [PATCH 3/4] parse-options: add new function "usage_msg_opt" Christian Couder
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).