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#!/usr/bin/mawk -f
# $MawkId: eatc.awk,v 1.3 2020/09/19 11:51:23 tom Exp $
# eatc.awk
# another program to remove comments
{ while( ( t = index($0 , "/*") ) > 0 )
{
if ( t > 1 )
printf "%s" , substr($0,1,t-1)
$0 = eat_comment( ( t + 2 <= length($0) ) ? substr($0, t+2) : "" )
}
print
}
function eat_comment(s, t2)
{
#replace comment by one space
printf " "
while ( (t2 = index(s, "*/")) == 0 )
if ( getline s == 0 )
{ # input error -- unterminated comment
system("/bin/sh -c 'echo unterminated comment' 1>&2")
exit 1
}
return ( t2 + 2 <= length(s) ) ? substr(s,t2+2) : ""
}