From: Bob Gustafson <bobgus@...>
Date: 2001-06-06T06:59:05+09:00
Subject: [ruby-talk:16251] Re: line numbers in multiline regular expressions.

Jonas wrote earlier:
>Hi,
>
>Here is my 5 minute attempt to create a program that extracts all
>comments in a C source file containing the string "TODO":
>
>todo_comments = File.
>  open(ARGV[0], "r").
>  read.
>  scan(/\/\*.*?\*\//m).
>  delete_if { |c| c !~ /TODO/ }
>
>It works fine, but I really would like to have access to the line number
>where the scan matches. Is that easy to accomplish or do I have to
>rethink the structure of the program from scratch?
>
>/j

It looks like you are only looking at lines which have both /* and */. This
may not be what you want.

You could try:

grep -n TODO filename

:-)  This would be a good benchmark for timing in any case.

Regards

BobG