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Annotation of GNUtools/cc/fixcpp, revision 1.1

1.1     ! root        1: #!/bin/sh
        !             2: #
        !             3: # NAME:
        !             4: #      fixcpp - fix CPP errors
        !             5: #
        !             6: # SYNOPSIS:
        !             7: #      fixcpp [-c][-p patch_file][-b bak_dir][-n new_dir] files(s)
        !             8: #
        !             9: # DESCRIPTION:
        !            10: #      For each named file, use sed(1) to fixup any descriptive
        !            11: #      text after #else or #endif or that is not properly
        !            12: #      commented as this causes ANSI compilers to generate
        !            13: #      unnecessary warnings.
        !            14: #
        !            15: #      Naturally this script is not guaranteed to be bullet
        !            16: #      proof, use of -n or -b is advisable!
        !            17: #
        !            18: #      -c causes fixcpp to make sure that only files that
        !            19: #      needed changing are affected by returning the original
        !            20: #      file to its original location if no changes were needed.
        !            21: #
        !            22: #      -p causes fixcpp to append to a patch file the context
        !            23: #      diffs of the changes wrought.
        !            24: #
        !            25: # SEE ALSO:
        !            26: #      sed(1)
        !            27: #
        !            28: # AMENDED:
        !            29: #      90/08/08 22:46:32 (sjg)
        !            30: #
        !            31: # RELEASED:
        !            32: #      90/08/08 22:46:34 v1.4
        !            33: #
        !            34: # SCCSID:
        !            35: #      @(#)fixcpp.sh 1.4 90/08/08 22:46:32 (sjg)
        !            36: #
        !            37: #      @(#)Copyright (c) 1990 Simon J. Gerraty
        !            38: #
        !            39: #       This is free software.  It comes with NO WARRANTY.
        !            40: #       Everyone is granted permission to copy, modify and
        !            41: #       redistribute this source code provided that all
        !            42: #       recipients are given similar rights, and that the above
        !            43: #       copyright notice and this notice are preserved in all
        !            44: #       copies. 
        !            45: 
        !            46: TMPF=/tmp/fixcpp.$$
        !            47: NEWDIR=
        !            48: BAKDIR=
        !            49: PATCHF=
        !            50: CHECK=
        !            51: 
        !            52: set -- `getopt "cp:b:n:" $*`
        !            53: if [ $? != 0 ]; then
        !            54:        echo "$0 [-c][-p patch_file][-b bakup_dir][-n new_dir] file [file ...]" >&2
        !            55:        exit 1
        !            56: fi
        !            57: for i in $*
        !            58: do
        !            59:        case $i in
        !            60:        -c)     CHECK=yes; shift;;
        !            61:        -p)     PATCHF=$2; shift 2;;
        !            62:        -b)     BAKDIR=$2; shift 2;;
        !            63:        -n)     NEWDIR=$2; shift 2;;
        !            64:        --)     shift; break;;
        !            65:        esac
        !            66: done
        !            67: NEWDIR=${NEWDIR:-.}
        !            68: if [ $BAKDIR ]; then
        !            69:        if [ ! -d $BAKDIR ]; then
        !            70:                echo "$0: no such directory -- $BAKDIR" >&2
        !            71:                exit 1
        !            72:        fi
        !            73: fi
        !            74: 
        !            75: 
        !            76: 
        !            77: for i in $*
        !            78: do
        !            79:        if [ $BAKDIR ]; then
        !            80:                mv $i $BAKDIR
        !            81:                infile=$BAKDIR/$i
        !            82:        else
        !            83:                if [ "$NEWDIR" = "." ]; then
        !            84:                        mv $i ${TMPF}
        !            85:                        infile=${TMPF}
        !            86:                else
        !            87:                        infile=$i
        !            88:                fi
        !            89:        fi      
        !            90:        sed -e 's;^#\([         ]*e[nl][^       ]*[     ][      ]*\)\([^/       ][^\*].*\);#\1/* \2 */;' -e 's;^#\([    ]*e[nl][^       ]*[     ][      ]*\)\([^/       ]\)$;#\1/* \2 */;' $infile >${NEWDIR}/$i
        !            91:        if [ "${CHECK}" = "yes" -o ${PATCHF} ]; then
        !            92:                if cmp -s $infile ${NEWDIR}/$i ; then
        !            93:                        if [ "${CHECK}" = "yes" ]; then
        !            94:                                if [ $BAKDIR ]; then
        !            95:                                        mv $infile ${NEWDIR}/$i
        !            96:                                else
        !            97:                                        rm ${NEWDIR}/$i
        !            98:                                fi
        !            99:                        fi
        !           100:                else
        !           101:                        if [ $PATCHF ]; then
        !           102:                                diff -c $infile ${NEWDIR}/$i >> ${PATCHF}
        !           103:                        fi
        !           104:                fi
        !           105:        fi
        !           106: 
        !           107: done
        !           108: 
        !           109: rm -f ${TMPF}

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