From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pierre Habouzit Subject: [PATCH] parse-opt: Export a non NORETURN usage dumper. Date: Mon, 23 Jun 2008 23:11:19 +0200 Message-ID: <1214255482-2086-2-git-send-email-madcoder@debian.org> References: <20080623210935.GC13395@artemis.madism.org> <1214255482-2086-1-git-send-email-madcoder@debian.org> Cc: peff@peff.net, Johannes.Schindelin@gmx.de, gitster@pobox.com, Pierre Habouzit To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Mon Jun 23 23:12:45 2008 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1KAtKx-00069F-Bf for gcvg-git-2@gmane.org; Mon, 23 Jun 2008 23:12:31 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756017AbYFWVL2 (ORCPT ); Mon, 23 Jun 2008 17:11:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755756AbYFWVL2 (ORCPT ); Mon, 23 Jun 2008 17:11:28 -0400 Received: from pan.madism.org ([88.191.52.104]:51109 "EHLO hermes.madism.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754434AbYFWVL0 (ORCPT ); Mon, 23 Jun 2008 17:11:26 -0400 Received: from madism.org (olympe.madism.org [82.243.245.108]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "artemis.madism.org", Issuer "madism.org" (verified OK)) by hermes.madism.org (Postfix) with ESMTPS id E28FE37F40; Mon, 23 Jun 2008 23:11:24 +0200 (CEST) Received: by madism.org (Postfix, from userid 1000) id CF05999B65; Mon, 23 Jun 2008 23:11:22 +0200 (CEST) X-Mailer: git-send-email 1.5.6.117.g5fe2 In-Reply-To: <1214255482-2086-1-git-send-email-madcoder@debian.org> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Signed-off-by: Pierre Habouzit --- parse-options.c | 24 +++++++++++++++++------- parse-options.h | 9 +++++++++ 2 files changed, 26 insertions(+), 7 deletions(-) diff --git a/parse-options.c b/parse-options.c index 774e647..4e9e675 100644 --- a/parse-options.c +++ b/parse-options.c @@ -257,8 +257,8 @@ int parse_options_end(struct parse_opt_ctx_t *ctx) return ctx->cpidx + ctx->argc; } -static NORETURN void usage_with_options_internal(const char * const *, - const struct option *, int); +static int usage_with_options_internal(const char * const *, + const struct option *, int, int); int parse_options(int argc, const char **argv, const struct option *options, const char * const usagestr[], int flags) @@ -302,7 +302,7 @@ int parse_options(int argc, const char **argv, const struct option *options, } if (!strcmp(arg + 2, "help-all")) - usage_with_options_internal(usagestr, options, 1); + usage_with_options_internal(usagestr, options, 1, 1); if (!strcmp(arg + 2, "help")) usage_with_options(usagestr, options); if (parse_long_opt(&ctx, arg + 2, options)) @@ -315,8 +315,8 @@ int parse_options(int argc, const char **argv, const struct option *options, #define USAGE_OPTS_WIDTH 24 #define USAGE_GAP 2 -void usage_with_options_internal(const char * const *usagestr, - const struct option *opts, int full) +int usage_with_options_internal(const char * const *usagestr, + const struct option *opts, int full, int do_exit) { fprintf(stderr, "usage: %s\n", *usagestr++); while (*usagestr && **usagestr) @@ -401,15 +401,25 @@ void usage_with_options_internal(const char * const *usagestr, } fputc('\n', stderr); - exit(129); + if (do_exit) + exit(129); + return PARSE_OPT_HELP; } void usage_with_options(const char * const *usagestr, const struct option *opts) { - usage_with_options_internal(usagestr, opts, 0); + usage_with_options_internal(usagestr, opts, 0, 1); + exit(129); /* make gcc happy */ +} + +int parse_options_usage(const char * const *usagestr, + const struct option *opts) +{ + return usage_with_options_internal(usagestr, opts, 0, 0); } + /*----- some often used options -----*/ #include "cache.h" diff --git a/parse-options.h b/parse-options.h index db6c986..424ea46 100644 --- a/parse-options.h +++ b/parse-options.h @@ -113,6 +113,12 @@ extern NORETURN void usage_with_options(const char * const *usagestr, /*----- incremantal advanced APIs -----*/ +enum { + PARSE_OPT_HELP = -1, + PARSE_OPT_DONE, + PARSE_OPT_UNKNOWN, +}; + struct parse_opt_ctx_t { const char **argv; const char **out; @@ -121,6 +127,9 @@ struct parse_opt_ctx_t { int flags; }; +extern int parse_options_usage(const char * const *usagestr, + const struct option *opts); + extern void parse_options_start(struct parse_opt_ctx_t *ctx, int argc, const char **argv, int flags); -- 1.5.6.117.g5fe2