Using regex to "sort" its matches

[Linden Krouse]

On Tuesday, 16 April 2013 at 20:00:37 UTC, Dmitry Olshansky wrote:
> 16-Apr-2013 22:59, Linden Krouse пишет:
>> Is there a way to use the regex library to put matches of 
>> different
>> regexs or classes into different slices? For instance, if I 
>> had the
>> regular expressions "(?<=#)\w+\b" and "(?<=%)\w+\b", could I 
>> use them to
>> match a string at the same time and stop if the first one is 
>> found and
>> keep their results separate (as if the regex was
>> "(?<=#)\w+\b|(?<=%)\w+\b)" and gave a slice for "(?<=#)\w+\b" 
>> and a
>> different one for "(?<=%)\w+\b" ). I'm a little new to regexs 
>> for the
>> record.
>
> For that particular case you can as well use this pattern:
> "(?<=#|%)\w+\b"
>
> and then check what character is the last one before your match 
> by hand:
>
> foreach(m; match(<your string>, "(?<=#|%)\w+\b")){
> 	if(m.pre.back == '#')
> 		//put in one place
> 	else if(m.pre.back == '%')
> 		// put somewhere else
> }
>
> More general interface to do it is being discussed recently, in 
> essence it gives you ability to switch over a bunch of regular 
> expressions.
>
> See:
> https://github.com/D-Programming-Language/phobos/pull/1241
>
> The machinery to efficiently combine regular expressions like 
> that will come sometime later but the interface should stay the 
> same.

Nice, that work well for what I'm trying to do when it gets 
added. Thanks