[TxMt] Re: Search & replace regex question

[Patrick James]

Hi

That is a very useful thing to know about. It does strike me as very  
strange that the Oniguruma Regular Expressions system is like this.

I haven't as yet encountered a situation where this was going to be a  
problem but I'd noticed that it doesn't seem to be accounted for in  
Oniguruma.

In the system used by BBEedit¹ the matching expression is two or three  
characters long, where the last one or two characters or digits.

So, \1 matches the first group in the find expression and \01 does the  
same. If you want to replace this followed by the digit "2" then you  
put \012 in the replace expression. This is no problem up until 99  
matches of course :)


¹Apologies for mentioning BBEdit :)

Patrick

http://www.patrickjames.co.uk

On 2 Sep 2008, at 16:53, Hans-Jörg Bibiko wrote:

> Maybe you could try to use Conditional Insertions mentioned in the TM
> manual chapter 20.4.3
> http://manual.macromates.com/en/regular_expressions
>
> Naïve example:
>
> I have the string
>
> 123456
>
> and I want to get
>
> 123457
>
> by using this regexp:
>
> 123(.)(.)7
>
> this won't work:
>
> 123$1$27 because $27 isn't set
>
> but this should work
>
> 123$1$2(?0:)7
>
>
> (?0:) is a kind of dummy and inserts nothing