Re: Trying to understand \G

On Jul 27, 2004, at 10:34, daz wrote:
> Below, Nobu's example [core:3203] works for \G whereas (substituting
> \A for \G in PATT) it confirms that the start of string is at offset
> zero and none other.
>
>    words = 'dog horse cat rabbit pig sheep'
>    PATT = /\G\w+/
>
>    last = 0
>    while index = words.index(PATT, last)
>      puts index
>      puts $&
>      last = Regexp.last_match.end(0) + 1
>    end

Ah, and now I can see a reason for it---something like this:

words = 'ant bee cat, dog elf fox'
last = 0
while index = words.index(/\w+/, last)
   puts index, $&.inspect
   last = Regexp.last_match.end(0)
   # match comma, but only if next character
   last += 1 if words.index(/\G,/, last)
   last += 1  # skip space
end


Cheers

Dave