Re: [FWP] Sort challenge

[John Borwick <jhborwic@unity.ncsu.edu>]

> Greetings all:
> 
> Given the following data:
> 
> __DATA__
> ae|Evans|Anne
> le|Evans|Louise
> he|Evans|Helen
> je|Evans|
> pete||Peter
> xs|Sanchez|
> rwj||
> est||
> 
> 1) If there's a last name, the program should sort first by that and then by the firstname (if there is one);
> 2) If no last name, then sort by first name;
> 3) If neither last nor first name, then sort by username
> 
> So the desired result is:
> 
> est
> Evans
> Evans, Anne
> Evans, Helen
> Evans, Louise
> Peter
> rwj
> Sanchez
> 
[snip]

$,=$/;print sort{lc$a cmp
lc$b}map{@a=split/[|\n]/;$a[1].($a[1]&&$a[2]&&', ').$a[2]||$a[0]}<DATA>

98 characters...

John Borwick
NCSU.pm



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