[TxMt] Language grammar question

[Michael Sheets]

On Jun 3, 2007, at 4:11 PM, Pavan Gunupudi wrote:

> I am writing a bundle for Spice-like circuit simulator input files.  
> For these text files, one of the rules is to have the first line as  
> a comment, no matter what is on the line. I was wondering how this  
> could be incorporated into the language grammar to set the  
> appropriate scope for the first line.

This would almost be impossible because there is no way for a match  
or begin to see any surrounding line, hence it is impossible to know  
if your on the first line or not.

However we know there is a first line, so we can create a begin/end  
match that never ends to match the first line:

http://pastie.textmate.org/67495

Then put the remaining patterns inside it, case solved. (Note the use  
of capture 0 here, which matches the entire begin line.)