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      1 #!/bin/sh
      2 #
      3 # remove all the #if's from a source file
      4 #
      5 #	$dotat: things/unifdefall.sh,v 1.10 2002/09/24 19:52:11 fanf2 Exp $
      6 # $FreeBSD: src/usr.bin/unifdef/unifdefall.sh,v 1.2 2002/09/24 19:50:03 fanf Exp $
      7 
      8 set -e
      9 
     10 basename=`basename $0`
     11 tmp=`mktemp -d -t $basename` || exit 2
     12 
     13 unifdef -s "$@" | sort | uniq > $tmp/ctrl
     14 cpp -dM "$@" | sort |
     15 	sed -Ee 's/^#define[ 	]+(.*[^	 ])[ 	]*$/\1/' > $tmp/hashdefs
     16 sed -Ee 's/^([A-Za-z0-9_]+).*$/\1/' $tmp/hashdefs > $tmp/alldef
     17 comm -23 $tmp/ctrl $tmp/alldef > $tmp/undef
     18 comm -12 $tmp/ctrl $tmp/alldef > $tmp/def
     19 
     20 echo unifdef -k \\ > $tmp/cmd
     21 sed -Ee 's/^(.*)$/-U\1 \\/' $tmp/undef >> $tmp/cmd
     22 while read sym
     23 do	sed -Ee '/^('"$sym"')([(][^)]*[)])?([ 	]+(.*))?$/!d;s//-D\1=\4/' $tmp/hashdefs
     24 done < $tmp/def |
     25 	sed -Ee 's/\\/\\\\/g;s/"/\\"/g;s/^/"/;s/$/" \\/' >> $tmp/cmd
     26 echo '"$@"' >> $tmp/cmd
     27 sh $tmp/cmd "$@"
     28 
     29 rm -r $tmp
     30