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#!/usr/bin/mawk -f
# ct_length.awk
#
# replaces all length
# by length($0)
#
{
while ( i = index($0, "length") )
{
printf "%s" , substr($0,1, i+5) # ...length
$0 = substr($0,i+6)
if ( match($0, /^[ \t]*\(/) )
{
# its OK
printf "%s", substr($0, 1, RLENGTH)
$0 = substr($0, RLENGTH+1)
}
else # length alone
printf "($0)"
}
print
}