[syslinux] macros in configuration files

[Geert Stappers]

Op 20080918 om 00:33 schreef Tobias Abt:
> H. Peter Anvin schrieb:
> > Thinking about this some more, I think it's time to add a simple macro 
> > system for configuration files.  The internals have been streamlined 
> > enough by now that it should be relatively easy to do -- there has been 
> > a *lot* of work behind the scenes which isn't user visible.
> > 
> > The main question is what syntax to use that isn't likely to step on 
> > something else.  I think my current inclination is to use the Unix-like 
> > ${...} with the braces mandatory to reduce the likelihood of conflict.
> > 
> > Opinions, anyone?
> 
> ACK! Standard procedure, therefore one less thing to learn... :-))

Ah, now I understand "macro", it is a "variable".

Unix shell uses an imho inconsequent syntax

   FILENAME=hosts
   DIRECTORY=/etc/
   FULLPATH=${DIRECTORY}${FILENAME}

I hope that syslinux get a consequent syntax like
   ${FILENAME}=hosts
   ${DIRECTORY}=/etc/
   ${FULLPATH}=${DIRECTORY}${FILENAME}
where allways the ${...} is used.


Cheers
Geert Stappers