[TxMt] How to include private additions to syntax coloring?

[Holger Frauenrath]

On Dec 22, 2006, at 1:48 PM, Charilaos Skiadas wrote:

> For most changes you want to do, including the one described above,  
> you should simply create a new language, and in its patterns add  
> the rules you want and finish by adding a rule that does: include =  
> 'text.tex.latex'. See http://macromates.com/textmate/manual/ 
> language_grammars#language_grammars for details. But the reason I  
> was asking you for what particular changes you want to do is that  
> this method should allow most changes you might want, but perhaps  
> not all of them. It is certainly the most forward compatible method.

Fine, thanks. So, I created a new language "LaTeX HF" which included

> firstLineMatch = '^\\documentclass(?!.*\{beamer\})';
> fileTypes = ( 'tex' );

followed by my changes, and a rule include = 'text.tex.latex'. In  
terms of syntax coloring the LaTeX source, this method does all what  
I want it to. Cool. However, I have two related technical questions.

1. What are possible ways to make this file take precedence over the  
original LaTeX language file? So far, I have changed it manually in  
the language selection at the bottom of the editor window. Is there  
an automatic way? I guess that I could also remove the above to lines  
from the original LaTeX language file ... but if I am not mistaken,  
these changes would mean that future updates to the LaTeX file will  
be ignored. Is that correct?

2. Which brought up another question for me. Let's assume I made  
changes to one of the supplied language files. Is there a way to  
"revert" those changes so that the language file is *for sure* the  
original one (so that updates are not going to be ignored), without  
loosing other changes (new cammands etc.) to the associated bundle?

Thanks
Holger