[gmx-developers] cmdline parsing / index files

[Anton Feenstra]

Erik Lindahl wrote:
> 
> I'd definitely prefer a solution where we have a general input
> structure, and functions to return the number of arguments given for
> each flag (e.g. "-f"), and another function that returns the n:th
> argument/filename, given the flag (or filetype, of course).

I've already added a ffRDMULT flag for file options, and opt2fns
and ftp2fns functions that return the number of files, and allocate
a pointer to an array of filenames. It's already in the CVS and
implemented for trjcat. eneconv will folow, but that needs a bit
more thinking since it already has a -f option.

I also realise now that the printing routine doesn't yet tell you
that it is a multiple file option. I'll fix that also... Done!

So try it and tell me what you think.

> There are a number of programs (eneconv & trjcat come to mind) that rely
> on different ways of handling multiple files, so make sure they don't break!

The current way (using PCA_NOEXIT_ON_ARGS) is still possible, 
and still used by eneconv. 

By the way, why has mdrun PCA_NOEXIT_ON_ARGS set?

-- 
Groetjes,

Anton
 ________ ___________________________________________________________
|        | Anton Feenstra                                            |
| .      | Dept. of Pharmacochemistry - Free University Amsterdam    |
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