Sep 10, 2012, 4:53 AM
Post #2 of 3
If the special variable $_ matches:
start of string, followed by one or more non white space characters folowed by one or more white space characters followed by one or more digits followed by one or more digits followed by anything...
In addition, the parentheses lead to the following captures:
- the first series of non white characters is captured in variable $1
- the series of digits is captured into variable $2
The i option makes the match case insensitive, which is quite useless here since there is no upper or lower case letter.