usr.bin/unifdef/unifdefall.sh

   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