[OS X TeX] Numerical commands

[Michael Sharpe]

On Jul 8, 2010, at 3:51 PM, Alain Schremmer wrote:

> This is half off-topic:
> 
> With arrayjobx, I am defining commands such as, for instance, in 4.sty:
> 
> \newarray\IV            %4
> \readarray{IV}          %Chapter 4. From Local Graphs to Global Graphs
> 	{% begin array
> 		%4-1
> 			CheckableItem1
> 		&4-2
> 			CheckableItem2
> 	[...]
> 		&%4-50
> 			CheckableItem50
> 	}%end array
> 
> I am using these commands as below and things work well but I was wondering if there might be a way to generate automatically the command names from the file names, for instance the command
> 	\IV
> from the file name
> 	4
> 
> But the only thing I could think of, namely using
> 	\Roman{\jobname}
> naturally does not work.
> 

\edef\xx{\expandafter\romannumeral\jobname}

gets you the lower case roman numeral, and then

\expandafter\uppercase\expandafter{\xx}

produces upper case.

Michael