Is there something like Regexp#match_all

Ruby
1

Hi,

is there a possibility to return all the matches of a regexp? or in
other words is there a way to apply a block to all matches at once?
Something like String#gsub but where I can specifiy what to do with the
matches…

Thanks
Andi

2

On 12/11/06, Andi S. [email protected] wrote:

is there a possibility to return all the matches of a regexp? or in
other words is there a way to apply a block to all matches at once?
Something like String#gsub but where I can specifiy what to do with the
matches…

These things are actually two different things.

  1. Look at String#scan
  2. Look at String#gsub with the block form and use Regexp::last_match
    (it’s a thread-local value, IIRC).

-austin

3

On 11.12.2006 22:26, Andi S. wrote:

is there a possibility to return all the matches of a regexp? or in
other words is there a way to apply a block to all matches at once?
Something like String#gsub but where I can specifiy what to do with the
matches…

What exactly do you want to do with matches?

robert
4

On Dec 11, 2006, at 4:50 PM, Andi S. wrote:

robert

I’d like to build a small web-tool for myself to highlight all the
matches of a regexp against a specified string (e.g. the matches
should
be in a different color). But I think I found a solution:

source_string.gsub(regexp) {|match| “<span
style=“color:red;”>#{match}”}

You don’t really need the block form for such a simple replacement.
This is the same thing:

source_string.gsub(regexp, ‘&’)

James Edward G. II

5

Robert K. wrote:

On 11.12.2006 22:26, Andi S. wrote:

is there a possibility to return all the matches of a regexp? or in
other words is there a way to apply a block to all matches at once?
Something like String#gsub but where I can specifiy what to do with the
matches…

What exactly do you want to do with matches?

robert

I’d like to build a small web-tool for myself to highlight all the
matches of a regexp against a specified string (e.g. the matches should
be in a different color). But I think I found a solution:

source_string.gsub(regexp) {|match| “<span
style=“color:red;”>#{match}”}

6

On 11.12.2006 23:56, James Edward G. II wrote:

source_string.gsub(regexp, ‘&’)

… and in fact more efficient IIRC.

robert