core: Add a high level option/argument parser.

* gpg-error.h.in (GPGRT_CONFDIR_USER, GPGRT_CONFDIR_SYS): New consts.
(ARGPARSE_FLAG_SYS, ARGPARSE_FLAG_USER, ARGPARSE_FLAG_VERBOSE)
(ARGPARSE_NO_CONFFILE, ARGPARSE_CONFFILE, ARGPARSE_OPT_CONFFILE): New
consts.
(ARGPARSE_conffile, ARGPARSE_noconffile): New macros.
(gpgrt_set_confdir): New func.
(gpgrt_argparser): New func.
* src/argparse.c (confdir): New var.
(enum argparser_states): New.
(struct _gpgrt_argparse_internal_s): Add a couple of new fields.
(initialize): Init them.
(any_opt_conffile): New.
(_gpgrt_argparser): New.
(_gpgrt_set_confdir): New.
* src/visibility.c (gpgrt_argparser): New.
(gpgrt_set_confdir): New.
* src/gpg-error.def.in, src/gpg-error.vers: Add those functions.
* tests/t-argparse.c (main): Reworked.
* tests/etc/t-argparse.conf: New file.
* tests/t-argparse.conf: New file.
--

gpgrt_argparser is a high level version of gpgrt_argparse.  It handles
reading of configuration files internally and allows allows for a
global configuration file.  The design is so that it minimizes the
work to replace the existing option parsing in gpg and friends by this
one and to allow global configuration files for them.

This is the just the basic code which should allow replacement of the
parsers.  A forthcoming patch will implement flags for options given
in the global config file.

GnuPG-bug-id: 4788
Signed-off-by: Werner Koch <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/visibility.h b/src/visibility.h
index 192f733..0759d2f 100644
--- a/src/visibility.h
+++ b/src/visibility.h
@@ -208,11 +208,13 @@ MARK_VISIBLE (gpgrt_release_process)
 #endif
 
 MARK_VISIBLE (gpgrt_argparse)
+MARK_VISIBLE (gpgrt_argparser)
 MARK_VISIBLE (gpgrt_usage)
 MARK_VISIBLE (gpgrt_strusage)
 MARK_VISIBLE (gpgrt_set_strusage)
 MARK_VISIBLE (gpgrt_set_fixed_string_mapper);
 MARK_VISIBLE (gpgrt_set_usage_outfnc);
+MARK_VISIBLE (gpgrt_set_confdir);
 
 MARK_VISIBLE (gpgrt_cmp_version);
 
@@ -389,11 +391,13 @@ MARK_VISIBLE (gpgrt_absfnameconcat);
 #define gpgrt_release_process        _gpgrt_USE_UNDERSCORED_FUNCTION
 
 #define gpgrt_argparse                _gpgrt_USE_UNDERSCORED_FUNCTION
+#define gpgrt_argparser               _gpgrt_USE_UNDERSCORED_FUNCTION
 #define gpgrt_usage                   _gpgrt_USE_UNDERSCORED_FUNCTION
 #define gpgrt_set_strusage            _gpgrt_USE_UNDERSCORED_FUNCTION
 #define gpgrt_strusage                _gpgrt_USE_UNDERSCORED_FUNCTION
 #define gpgrt_set_usage_outfnc        _gpgrt_USE_UNDERSCORED_FUNCTION
 #define gpgrt_set_fixed_string_mapper _gpgrt_USE_UNDERSCORED_FUNCTION
+#define gpgrt_set_confdir             _gpgrt_USE_UNDERSCORED_FUNCTION
 
 #define gpgrt_cmp_version           _gpgrt_USE_UNDERSCORED_FUNCTION