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Re: xml diff?

• From: "Liam R. E. Quin" <liamquin@i...>
• To: xml-dev@i...
• Date: Tue, 22 Dec 1998 03:26:24 -0500 (EST)

There is a really "dumb" but sometimes useful approach at the
purely text level.

You can use Unix diff more or less as follows:
(1) turn newline into control-A newline (say)
(2) turn space outside tags into space newline
(3) insert newline before and after each tag
(4) format tags so they atr
     <gi
	att1="value1"
	att2="value2"
	.
	.
    >
(5) use Unix diff on the two processed files
(6) reverse the processing before presenting the diffs to the user.

I've seen shell scripts to do this floating around.
Heck, I think I might even have written one :-)


There are plenty of papers on tree differences, and I think
others have already mnentioned some. Eila Kuikka did a thesis
on processing structured documents using a syntax-directed approach
(Kuopio 1996) that may be useful, too, as one starting point for
investigating the theory.

Lee

-- 
Liam Quin, GroveWare Inc., Toronto;  The barefoot programmer
l i a m q u i n     at    i n t e r l o g    dot   c o m


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