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Created June 5, 2010 16:38
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Script to strip all C comments
# Strip C comments
# by Stewart Ravenhall <stewart.ravenhall@ukonline.co.uk> -- 4 October 2000
# Un-Korn-ized by Paolo Bonzini <bonzini@gnu.org> -- 24 November 2000
# Strip everything between /* and */ inclusive
# Copes with multi-line comments,
# disassociated end comment symbols,
# disassociated start comment symbols,
# multiple comments per line
# Check given file exists
program=`echo $0|sed -e 's:.*/::'`
if [ "$#" = 1 ] && [ "$1" != "-" ] && [ ! -f "$1" ]; then
print "$program: $1 does not exist"
exit 2
fi
# Create shell variables for ASCII 1 (control-a)
# and ASCII 2 (control-b)
a="`echo | tr '\012' '\001'`"
b="`echo | tr '\012' '\002'`"
sed '
# If no start comment then go to end of script
/\/\*/!b
:a
s:/\*:'"$a"':g
s:\*/:'"$b"':g
# If no end comment
/'"$b"'/!{
:b
# If not last line then read in next one
$!{
N
ba
}
# If last line then remove from start
# comment to end of line
# then go to end of script
s:'"$a[^$b]"'*$::
bc
}
# Remove comments
'"s:$a[^$b]*$b"'::g
/'"$a"'/ bb
:c
s:'"$a"':/*:g
s:'"$b"':*/:g
' $1
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