CUFP
nashdj
A friend of mine recently had an assignment where he had to split up a text file and print it out as a triangle. Of course this was in "c" and so, just because I could I had to see just how simple it would be in perl.
The idea is to take a ctriangle.txt file like
<code>a a a a a a a a a
a a a a a a a a a
a a a a a a a a a
a a a a a a a a</code>
and end up centered over 80 chars
<code> a
a a
a a a
a a a a
a a a a a
a a a a a a
a a a a a a a
a a a a a a a</code>
<code> The
same
principle
applies to
any text file,
basically splitting
words only on spaces
or new lines</code>
My best shot was 132 chars (\n inc). I especially like the new trick I learnt. <code>/[
]+/</code>Which matches space/new line combinations.
<p>
Well this is the best I could do, after staring at it for half an hour it wasnt getting any shorter.
<code>open F,"ctriangle.txt";sub n{print
" "x(40-$r/2)."$x\n"};for(split/[
]+/,join'',<F>){$c=$r,n,$x=''if(
$r=length($x.=" $_"))>$c}n</code>
- nashdj
<p>
<b>Update:</b><br>
With [jeroenes] idea, if I undef $/ by assigning it undef from an unused variable (not pretty but we're talking size) its down to 128 chars.
<code>open F,"ctriangle.txt";sub n{print
" "x(40-$r/2)."$x\n"};$/=$w;$_=<F>;
for(split){$c=$r,n,$x=''if(
$r=length($x.=" $_"))>$c}n</code>