On Friday, May 10, 2002, at 10:52 , Eric Wang wrote:
> Can you explain what all that means?
> specifically the /!([^!]*)/g part
> and the $1 part
>
> I only had limited automaton experience
> thanks for your time
the scary part is that this is part of the Regular Expression Game,
and less to do with 'automaton' - but as we all know RegEx is dead
since this can 'all be done so much simpler in XML'....
david grays may be easier to explain:
my $jims = "!23!auntie45!67";
my @nums = ();
#push @nums,$1 while $jims =~ /!?(\d+)/g; # the '?' is extraneous
while ($jims =~ /! #find a ! token
(\d+) # find one or more digits -
# put in $1 special variable
if we match
/gx ) { # do this globally through the string
# enter the loop any time we have a match
push @nums,$1 ; # accumulate the matched things in @nums
}
ciao
drieux
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