[TxMt] lookbehind find

[Allan Odgaard]

On 17/09/2005, at 15.14, salvo wrote:

>> And what is standard regex? :p. I didn't know there was ONE such  
>> thing, but several.
> ahahah :)
> it's perhaps the most comprensive one.
> I think, however: Perl.
>
> Surely not Word for Windows ;-)

WikiPedia of course has the scoop:
    http://en.wikipedia.org/wiki/Regular_expression

Mentioning BNF, traditional UNIX, modern POSIX, and then patterns for  
irregular languages.

Also of slight interest:
    http://en.wikipedia.org/wiki/Regular_languages