Re: [xml-dev] generate common xml shema from multiple xml instances

[Dan Brickley <danbri@danbri.org>]

On 17/6/09 09:05, nico wrote:
> Hello
>
> I do not think such a tool exists.


>     On Wed, Jun 17, 2009 at 10:54 AM, Rita Shen<shaledova@gmail.com
>     <mailto:shaledova@gmail.com>> wrote:
>      > Hi,
>      >
>      > How can I generate a common XML schema for multiple xml instances??
>      > I know many tools can generate an XSD from a single XML instance.
>      > But in my case, I want to get the unknown common XSD for a bunch
>     of XML
>      > instances.
>      >
>      > Thanks for any help,
>      > syt

OCLC used to have an SGML tool called Fred, which I believe did just this.

See http://web.archive.org/web/*/http://www.oclc.org/fred/

http://web.archive.org/web/20080211221218rn_1/digitalarchive.oclc.org/da/ViewObject.jsp?objid=0000003782

See SGML'95 paper, 
http://web.archive.org/web/20001016143854/www.oclc.org/fred/docs/sgml95.html

Eg """4.0 Automatic DTD Creation Process

The automatic DTD creation process is a means whereby a generalized 
grammar is built from one or more document instances by first creating 
structural rules as described in the previous section and then 
combining, generalizing, reducing, and these rules. The resulting 
grammar is then output using an appropriate DTD syntax. We will explain 
all of this in more detail in the following. """

See also http://xml.coverpages.org/gen-apps.html#fred

cheers,

Dan