Peter Foldiak wrote:

On Wed, 2004-11-24 at 15:02, Paolo Ciarrocchi wrote:


On 24 Nov 2004 09:16:03 +0000, Peter Foldiak
<[EMAIL PROTECTED]> wrote:
[...]


I would really like to implement this for the next version of Hans' file
system.


I don't undersand how you want to use Xpath for not XML file.
I agree with you that the idea behind Xpath is cool but I fail to
unserstand how it can be applied to anything but XML



My message was mainly about XML, for which it is easy. For non-XML, you need some other way of knowing the file format. The example that originally came up in this thread was

/etc/passwd/[username]

In this case, the passwd file has a known format.
Other file types, like LaTex, html, jpeg also have (at least partially)
known formats. Some selection should be possible even for unknown
formats (e.g. byte range, line-range). There could also be some way of
specifying a new format but I don't know how to do this well. You could
give names (like filenames) to parts of files.
But I think the first step would be to concentrate on XML, and worry
about the rest later.   Peter





I think Peter is right. It would be nice to have an interpreter for each of the common file formats, and XML is just the biggest one.

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