From: Tom Lane <tgl@sss.pgh.pa.us>
To: Erik Wienhold <ewie@ewie.name>
cc: Marcos Pegoraro <marcos@f10.com.br>, pgsql-www@postgresql.org
Subject: Re: Diff of this page with other version
In-reply-to: <w57oncn7cptrcah6kgbn5gdkqfmo3nihsrb2bvcbgpfwpkeixl@dqqdc5f7i5p5>
References: 
 <CAB-JLwYmR+sW9spQQMjnLT0hbAR_3qTCqqJgt-sC3=NgCSJyRg@mail.gmail.com>
 <w57oncn7cptrcah6kgbn5gdkqfmo3nihsrb2bvcbgpfwpkeixl@dqqdc5f7i5p5>
Comments: In-reply-to Erik Wienhold <ewie@ewie.name>
	message dated "Sat, 02 Mar 2024 17:14:59 +0100"
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Date: Sat, 02 Mar 2024 12:33:43 -0500
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Erik Wienhold <ewie@ewie.name> writes:
> I think you underestimate the effort because the changes are not always
> as clear (adding one line) as for copy.sgml as you've shown above.  For
> example, if I check create_table.sgml between v15 and v16, I see that
> the addition of STORAGE modified an existing line.  So that regex has to
> match and wrap just the relevant substring.  When new storage modes are
> added we end up with nested version info in order to compare vXX with
> pre v16:

Yeah.  I think the chances of getting people to do this in the .sgml
files are precisely zero.  What might have a chance of happening is
to provide a way on the website of running htmldiff or similar tool
over two versions of a doc page on-the-fly and show the results.

			regards, tom lane