$a and $b are built-in variables used for 'comparison criteria' during the
sort process.
The statement you have posited means that the contents of @files be sorted
alphabetically. The sorting criterion is spelled by $a cmp $b statement.
What this does is to return a 0 if both the candidates are alphabetically
the same, -1 if one is alphabetically lesser than the succeeding element and
1 if the preceding element is alphabetically greater than the succeeding
element.
- Rex
----- Original Message -----
From: "nafiseh saberi" <[EMAIL PROTECTED]>
To: "perl" <[EMAIL PROTECTED]>
Sent: Monday, October 29, 2001 4:52 AM
Subject: sort
hi.
what is the main work of {$a cmp $b} in this code :
@articles = sort {$a cmp $b} @files;
thx
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Best regards ......... Nafiseh Saberi
A bird in the hand ,is worth two in the bush.
www.iraninfocenter.net
www.sorna.net
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