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Awk split doesn't work for empty delimiter

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# 1  
Old 12-30-2008
Awk split doesn't work for empty delimiter
Does anyone know how will I make awk's split work with empty or null separator/delimiter?

Code:
echo ABCD | awk '{ split($0,arr,""); print arr[1]; }'

I need output like:
HTML Code:
A
B
C
D
I am under HP-UX
# 2  
Old 12-30-2008
Hi,

try:

Code:
echo ABCD | awk '{ gsub(/./,"&\n",$0); print $0 }'

Output:
Code:
A
B
C
D

HTH Chris
# 3  
Old 12-30-2008
Sorry. I forgot to mentioned that I need to put each character in an array or variable, the reason I use the split function of awk.
# 4  
Old 12-30-2008
Code:
Code:
echo ABCD | awk '{ split($0,a,""); for (i in a){print a[i]} }'

Output:
Code:
D
A
B
C

# 5  
Old 12-30-2008
To put in an array in awk-

echo ABCD | awk ' { for ( i = 1; i <= length($0); i++ ) a[i]=substr($0,i,1) } END { for ( i in a ) print a[i] } '

B
C
D
A
# 6  
Old 01-05-2009
Thanks a bunch! The code from pmm works but the one from Christoph Spohr did not. Im not sure why. Anyways, thanks again!
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