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[help-gengetopt] a small improvement(?) in the config file parser
From: |
Gyozo, PAPP (VBuster) |
Subject: |
[help-gengetopt] a small improvement(?) in the config file parser |
Date: |
Wed, 29 Sep 2004 18:48:34 +0200 |
Hi there,
I've run into a problem (with gengetopt 2.13) which I could not resolve
reassuringly.
The problem involves the new config file parser function (btw I think the old
one would also be subject of this problem.)
Take the following .ggo resource file
# option.ggo
option "option-with-arg" - "this option must have an argument" type=string no
option "arbitrary" - "this option is arbitrary, but has great importance
in this example" no
and the following config file given to the application:
# config.ini
option-with-arg = # no option is specified, error!
arbitrary
The problem is that the _configfile() parser function currently ignores the
equal-sign and simply generates "--option-with-arg" for the corresponding argv
element, and then finally "--arbitrary" is also added to the virtual
commandline which will be passed to the _internal() perser function. So after
reading up the preceding config file cmdline_internal() receives the following
argv array:
[0] = PACKAGE_VAR_NAME
[1] = "--option-with-arg"
[2] = "arbitrary"
At this point, you can easily guess what the real problem is. Yes, the parser
function thinks that "arbitrary" is the option-argument of "--option-with-arg",
so the whole configuration will be messed up. I patched the configfile parser
template which checks now if equal sign is present in the current line, and if
so, it adds the equal sign to the corresponding argv element.
[0] = PACKAGE_VAR_NAME
[1] = "--option-with-arg="
[2] = "arbitrary"
This hack may suffice my current needs, but I think the real solution would be
if options read by _configfile() function was processed immediately without
translating the options to a virtual command line and then processed by
_internal().
What do you think?
--
Papp, Győző
VirusBuster Kft
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