As japh already explained in this thread, the characters JAPH are determinated by the place of the spaces in the code. The code itself is put in $_ and than evalled. So the code actually parses it's own code. The length of the blocks of non-whitespace characters, added with 61 (62 +-1) forms the ascii worths for J A P H. 
#!/usr/bin/perl
$_='print(chr(62+ -+1+ length))foreach(((m /(\S+)/g)))';eval;

print(chr(62+       <-Length:13 Ascii:61+13=74 (J)
-+1+                <-Length:4  Ascii:61+4=65  (A)
length))foreach(((m <-Length:19 Ascii:61+19=80 (P)
/(\S+)/g)))         <-Length:11 Ascii:11+61=72 (H)

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Cheers, Len

In reply to Spoiler: spacy japh by Len
in thread spacy japh by Anonymous Monk

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