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Annotation of 43BSD/contrib/rcs/doc/rdiff3.ms, revision 1.1

1.1     ! root        1: .TL
        !             2: Changes to diff3
        !             3: .PP
        !             4: .DS
        !             5: diff3 [-ex3EX] file1 file2 file3 [m1 m2]
        !             6: .DE
        !             7: I added 2 new options, -E and -X. They work like -e and -x, respectively,
        !             8: in that they generate an edit script that incorporate into file1
        !             9: changes between file2 and file3. However, the scripts generated by -E and
        !            10: -X treat overlapping changes (those marked ==== by normal diff3)
        !            11: differently.
        !            12: .PP
        !            13: If applied to file1, the scripts generated by -E and -X include, for every
        !            14: pair of overlapping changes, BOTH sections of lines,
        !            15: delimited with "<<<<<<<\ m1", 
        !            16: "=======", and ">>>>>>>\ m2". M1 and m2 are markers supplied in the 
        !            17: command. If they are omitted, file1 and file3 are used instead. 
        !            18: .PP
        !            19: Example: Suppose lines 7-8 are changed in both file1 and file2.
        !            20: Applying the edit script generated by the command
        !            21: .DS
        !            22: "diff3 -E file1 file2 file3" 
        !            23: .DE
        !            24: to file 1 results in the following file:
        !            25: .nf
        !            26: 
        !            27: lines 1-6
        !            28: of file1
        !            29: <<<<<<< file1
        !            30: lines 7-8
        !            31: of file1
        !            32: =======
        !            33: lines 7-8
        !            34: of file3
        !            35: >>>>>>> file3
        !            36: rest of file1
        !            37: .PP
        !            38: The command
        !            39: .DS
        !            40: merge file1 file2 file3 [m1 m2]
        !            41: .DE
        !            42: performs a diff -E with the same arguments and applies the resulting edit 
        !            43: script to file1. It also prints out the number of overlapping changes. 

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