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src/unifdefall.sh

 

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#!/bin/sh

 

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#

 

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# remove all the #if's from a source file

 

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#

 

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#       $dotat: things/unifdefall.sh,v 1.9 2002/09/24 19:43:57 fanf2 Exp $

 

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# $FreeBSD: /repoman/r/ncvs/src/usr.bin/unifdef/unifdefall.sh,v 1.2 2002/09/24 19:50:03 fanf Exp $

 

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set -e

 

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basename=`basename $0`

 

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tmp=`mktemp -d -t $basename` || exit 2

 

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unifdef -s "$@" | sort | uniq > $tmp/ctrl

 

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cpp -dM "$@" | sort |

 

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        sed -Ee 's/^#define[    ]+(.*[^  ])[    ]*$/\1/' > $tmp/hashdefs

 

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sed -Ee 's/^([A-Za-z0-9_]+).*$/\1/' $tmp/hashdefs > $tmp/alldef

 

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comm -23 $tmp/ctrl $tmp/alldef > $tmp/undef

 

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comm -12 $tmp/ctrl $tmp/alldef > $tmp/def

 

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echo unifdef -k \\ > $tmp/cmd

 

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sed -Ee 's/^(.*)$/-U\1 \\/' $tmp/undef >> $tmp/cmd

 

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while read sym

 

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do      sed -Ee '/^('"$sym"')([(][^)]*[)])?([   ]+(.*))?$/!d;s//-D\1=\4/' $tmp/hashdefs

 

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done < $tmp/def |

 

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        sed -Ee 's/\\/\\\\/g;s/"/\\"/g;s/^/"/;s/$/" \\/' >> $tmp/cmd

 

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echo '"$@"' >> $tmp/cmd

 

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sh $tmp/cmd "$@"

 

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rm -r $tmp

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