[dpdk-dev] [PATCH 1/5] cfgfile: configurable comment character

[Yuanhan Liu]

On Thu, Mar 02, 2017 at 09:10:15PM +0000, Bruce Richardson wrote:
> On Thu, Mar 02, 2017 at 02:29:27PM -0500, Allain Legacy wrote:
> > The current cfgfile comment character is hardcoded to ';'.  This commit
> > introduces a configuration attribute to allow an application to select a
> > different character.  This is to ease adoption by applications that have an
> > existing configuration file which may use a different comment character.
> > For instance, an application may already have a configuration file that
> > uses the '#' as the comment character.
> > 
> > Signed-off-by: Allain Legacy <allain.legacy at windriver.com>
> > ---
> >  config/common_base               | 1 +
> >  lib/librte_cfgfile/rte_cfgfile.c | 2 +-
> >  2 files changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/config/common_base b/config/common_base
> > index aeee13e..32a42d7 100644
> > --- a/config/common_base
> > +++ b/config/common_base
> > @@ -477,6 +477,7 @@ CONFIG_RTE_LIBRTE_TIMER_DEBUG=n
> >  # Compile librte_cfgfile
> >  #
> >  CONFIG_RTE_LIBRTE_CFGFILE=y
> > +CONFIG_RTE_LIBRTE_CFGFILE_COMMENT_CHAR=';'
> >  
> 
> We are trying to avoid adding in extra build-time options to DPDK, so
> can you please rework this patch to make it a run-time option instead.

+1 for making it a run-time option.

	--yliu

> Perhaps just add a set_comment_char() API call to the library. If this
> is a setting per cfgfile instance it would then allow applications to
> simultaneously use files with different formats. For example, if in
> future we use cfgfile library to configure DPDK EAL, a preexisting file
> for that shipped with DPDK may conflict in format with an
> application-specific one.
> 
> 	/Bruce