Update 2: demerphq reminded me that his code returns the list. My code has been updated to do so, and comes in at 106: 
# this is LEXICAL sorting
#2345678901234567890123456789012345678901234567890123
sub JAPHY {
sort{(*-,*+)=map[/^\s*(0|-?[1-9]\d{0,8})(.*)$/],$a,$b
;@-?@+?$-[0]-$+[0]||$-[1]cmp$+[1]:-1:@+?1:$a cmp$b}@_
}

[download]
Update: new code under 100, at 98... oh, notice how I'm leaving that space in between $a and cmp? If it's legal for me to put a newline there and not have it count, let me know. 
#234567890123456789012345678901234567890123456789
sub JAPHY {
(*-,*+)=map[/^\s*(0|-?[1-9]\d{0,8})(.*)$/],$a,$b;
@-?@+?$-[0]-$+[0]||$-[1]cmp$+[1]:-1:@+?1:$a cmp$b
}

[download]
Here's my sorting function, with a healthy count of 107: 
#2345678901234567890123456789012345678901234567890123456
sub JAPHY {
my($A,$B)=map[/^\s*(0|-?[1-9]\d{0,8})(.*)$/],$a,$b;
@$A?@$B?$$A[0]-$$B[0]||$$A[1]cmp$$B[1]:-1:@$B?1:$a cmp$b
}

[download]

_____________________________________________________
Jeff[japhy]Pinyan: Perl, regex, and perl hacker, who could use a job
s++=END;++y(;-P)}y js++=;shajsj<++y(p-q)}?print:??;

In reply to Re: (Golf) Keysort by japhy
in thread (Golf) Keysort by demerphq

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