From 202fbb33156287feeabc39c46db0e9857cb97152 Mon Sep 17 00:00:00 2001 From: Nguyễn Thái Ngọc Duy Date: Sun, 27 Jan 2019 07:35:23 +0700 Subject: parse-options: add one-shot mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is to help reimplement diff_opt_parse() using parse_options(). The behavior of parse_options() is changed to be the same as the other: - no argv0 in argv[], everything can be processed - argv[] must not be updated, it's the caller's job to do that - return the number of arguments processed - leave all unknown options / non-options alone (this one can already be achieved with PARSE_OPT_KEEP_UNKNOWN and PARSE_OPT_STOP_AT_NON_OPTION) This mode is NOT supposed to stay here for long. It's to help converting diff/rev option parsing. Once that work is over and we can just use parse_options() throughout the code base, this will be deleted. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- parse-options.h | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'parse-options.h') diff --git a/parse-options.h b/parse-options.h index f5e7ec7d23..d663b83973 100644 --- a/parse-options.h +++ b/parse-options.h @@ -27,7 +27,8 @@ enum parse_opt_flags { PARSE_OPT_STOP_AT_NON_OPTION = 2, PARSE_OPT_KEEP_ARGV0 = 4, PARSE_OPT_KEEP_UNKNOWN = 8, - PARSE_OPT_NO_INTERNAL_HELP = 16 + PARSE_OPT_NO_INTERNAL_HELP = 16, + PARSE_OPT_ONE_SHOT = 32 }; enum parse_opt_option_flags { @@ -169,10 +170,18 @@ struct option { N_("no-op (backward compatibility)"), \ PARSE_OPT_HIDDEN | PARSE_OPT_NOARG, parse_opt_noop_cb } -/* parse_options() will filter out the processed options and leave the - * non-option arguments in argv[]. usagestr strings should be marked - * for translation with N_(). +/* + * parse_options() will filter out the processed options and leave the + * non-option arguments in argv[]. argv0 is assumed program name and + * skipped. + * + * usagestr strings should be marked for translation with N_(). + * * Returns the number of arguments left in argv[]. + * + * In one-shot mode, argv0 is not a program name, argv[] is left + * untouched and parse_options() returns the number of options + * processed. */ int parse_options(int argc, const char **argv, const char *prefix, const struct option *options, -- cgit v1.2.3