option to add extra ignore characters

hi,

I took another attempt at spell checking sources using
@(#) International Ispell Version 3.1.20 (but really Aspell 0.60.4)

I run
aspell -c --mode=ccpp -p ./.aspell_dict.pws xxx.c

and I create the personal dictionary from the tags file and file-name  
basenames. This is to automatically have a sensible wordlist. When  
trying to use the list I get error like this:

Error: ./.aspell_dict.pws: The word "adapter_test" is invalid. The  
character '_' (U+5F) may not appear in the middle of a word.
Error: ./.aspell_dict.pws: The word "appendix-win32" is invalid. The  
character '3' (U+33) may not appear in the middle of a word.
Error: ./.aspell_dict.pws: The word "appendix-win32" is invalid. The  
character '3' (U+33) must be followed by an alphabetic character.

I already started to muck with my /usr/lib/aspell/en.dat and adding
special ' -*- _ **- - -*- 1 -** 2 -** 3 -**
and so on. This helps with allowing to get rid of the *in the middle'  
warnings but not of the latter (must be followed by an alphabetic  
character).

The personal dictionary starts with:
personal_ws-1.1 en 701

What about having some 'dummy' language for this purpose? I mean, when  
using generated wordlists, I don't want any affix handling and the  
like. Just adding these workds as valid words.

While speaking of personal dictionaries, could aspell please save  
those sorted? If keeping them in the source repository it would be  
handy to have minimal diff.

Stefan