Hi there, I am updating a Perl script and am having difficulties
understanding a string substitution in one of the subroutines (I
didn't write it - I'm just trying to update it). I'm still a novice
when it comes to Regular Expressions so I could use some help
understanding one particular regex.
Here are the 3 lines of interest:
---
1: time_line = "$1\/$2\/$3\"\t\"$4:$5 $6";
2: time_line =~ s/^0//;
3: time_line =~ s/(^\d+\/)0/\1/;
---
at line 1, the variable equals something like : "03/23/07\" \"3:05
pm"
at line 2, I expect that the first '0' is removed, so the variable now
equals : "3/23/07\" \"3:05 pm"
==> What does line 3 do??
I've tried guessing, but just can't figure it out. Something about
repeating pattern of digits.. or not .. followed by a '0'? Then..
dunno. I got nothin.
Help! Please!
TIA. Paul.