Re: {{ double braces }}

["Thomas A. Schmitz" <thomas.schmitz@uni-bonn.de>]

On Jan 23, 2008, at 10:50 PM, Peter Münster wrote:

> I've just seen, that it does not work for nested braces:
> \footnote{x{y}z}:   ok
> \footnote{x{y{z}}}: not ok
>
> The next one (normal regexp, not extended) has support for up to one  
> level
> of nesting:
>
> \\footnote{[^{}]*\([^{}]*{[^{}]*\([^{}]*{[^{}]*}[^{}]*\)*[^{}]*} 
> [^{}]*\)*[^{}]*}
>
> These examples seem to work:
> \footnote{x{y}z}
> \footnote{x{y{z}}}
> \footnote{x{y}z}
> \footnote{x{y{z}}x{y{z}}x{y}z}
> \footnote{x{y{z}}x{y{z}y{z}y}x{y}z}
>
> Cheers, Peter

You could also use a nice scripting language like ... lua!! lua has  
support for "balanced strings," so no nesting trickery is needed, see http://www.lua.org/pil/20.2.html 
  (scroll to the bottom of the page). Or you could try and nag Hans  
into giving a nice tutorial on the lua lpeg library at Bohinj! :-)


All best

Thomas
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