Sorting Arrays by one element

Orpheus posted this at 21:26 — 21st December 1999.

Joined: Nov 1999

i've been trying to do this for a long time now but i can't seem to find out how.

lets say i have an array called @test
in the array i have 3 elements, they contain

name1|100
name2|353
name3|89

i need to split the number from the name and then sort the numbers. But then i need to put the correct number with the correct name
so it would be

name2|353
name1|100
name3|89

any ideas on how i could do this?

japhy posted this at 22:46 — 21st December 1999.

They have: 161 posts

Joined: Dec 1999

Ugh, why do so many people use the pipe sign as an element separator? Sigh...

Anyway, here's how I'd do it, using a Schwartzian Transform (read "Effective Perl Programming" to find out more about these time saving structures):

Code Sample:
@sorted = map { join "|", @$_ } sort { $b->[1] <=> $a->[1] } map { [ split /\|/ ] } @list;

To learn about each of the individual segments, read up on: map(), sort(), split(), join(), and the perlref documentation for information on references.

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MIDN 4/C PINYAN, NROTCURPI, US Naval Reserve

Orpheus posted this at 01:09 — 22nd December 1999.

They have: 568 posts

Joined: Nov 1999

thanks a lot, that worked great