VCP::DiffFormat3pm

Usage

    diff $a, $b { STYLE => "VCP::DiffFormat" };

Overview

This is a plugin output formatter for Text::Diff that generates "unified" style diffs without headers. VCP::Dest::revml uses this to output differences for several reasons:

•

The Unix "diff" command is not available on all platforms by default, specifically WinNT.

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The two line "file header" is not needed in RevML, since the meta information is captured elsewhere in the <rev> element, and the name and mtime of the files being compared is irrellevant; they're just some temporary files somewhere

•

Because RevML offers MD5 hashes of the file to verify that a diff was applied properly, all of the "-" lines present in a normal unified diff are not necesssary. They are left in now for ease of debugging with RevML files, but may be stripped out to conserve space.