[TxMt] pbs with LaTeX labels

[Allan Odgaard]

On 1. Jun 2007, at 02:34, Édouard Gilbert wrote:

> While I'm at it, is there also a way to escape some commands in the  
> same time ?
>
> Typically, when I type
>
> \lastname{Kant}'s life as a title, I'd like it to b converted to
> kant_s_life
>
> But when I type
> \Z is the integer set (\where \Z is a macro to type Z in mathbf)
>
> I'd rather like
> z_is_the_integer_set
>
> Does anyone have an idea of some way to achieve that? I guess the  
> first part should be too hard, but I'm far from being an expert in  
> regexp.

Not entirely sure of the context -- this is a snippet regexp  
transformation?

Presumably something like this will do:

     ${1:your text} → ${1/\\\w+\{(.*?)\}|\\(.)|(\w+)|(\W+)/(?4:_:$1$2 
$3)/g}

Here we match:
  a command of the form \command{«value»}
  or an escaped character of the form \«char»
  or multiple word characters
  or multiple non-word characters

If the last branch is taken, we insert an underscore, otherwise we  
insert the result of the other captures (we insert all 3, but since  
this is an OR, only one will actually have a value).