Re: [xml-dev] Feasibility of "do all application coding in the XML langu

["Dimitre Novatchev" <dnovatchev@gmail.com>]

On Wed, Dec 3, 2008 at 6:58 AM, Rushforth, Peter
<Peter.Rushforth@nrcan-rncan.gc.ca> wrote:
> Dimitre,
>
> I have to confess even after reading the code, I don't understand it.
>
> Can you supply an example invocation using a simple input example,
> and expected output?
>
> I am definitely interested in anything that helps broaden the
> possible inputs to XSLT!
>

Peter,

Sometimes ago I posted to the xsl-list this short description of the
arguments to f:lr-parse(). It can be found here:

   http://biglist.com/lists/xsl-list/archives/200711/msg00642.html


You can play with a small example located at:

   http://fxsl.cvs.sourceforge.net/viewvc/fxsl/fxsl-xslt2/Tests/TestFunc-lrParse.xsl?view=markup&sortby=file


In this example, the parser is invoked with this code snippet:

  11  <xsl:variable name="vsimpleExprPPTables" select=
   12   "document('../data/simpleExprParseTables.xml')/*"/>
   13
   14  <xsl:template match="/">
   15    <xsl:sequence select=
   16     "f:lrParse($vsimpleExprPPTables,
   17                     '3 + 4*5 - (7%3)',
   18                     f:lexer-simpleExpr(),
   19                     f:OnSimpleExprRuleReduced()
   20                )
   21                  /computedValue/node()
   22      "
   23     />
   24  </xsl:template>

and the result from the transformation is: 22

The parse tables, which the general LR parser needs are located at
'../data/simpleExprParseTables.xml'. They are generated with the YACCX
tool (available on the FXSL project downloads at:

   http://fxsl.cvs.sourceforge.net/viewvc/fxsl/fxsl-xslt2/Tools/YACCX/?sortby=file
                  ),
 which is just YACC, extended to generate its output as XML.

Two other, very big examples are the current parsers for JSON (as used
in the f:json-document() function and the XPath 2.0 parser)

I would be glad to assist you in producing your own parsers.



-- 
Cheers,
Dimitre Novatchev
---------------------------------------
Truly great madness cannot be achieved without significant intelligence.
---------------------------------------
To invent, you need a good imagination and a pile of junk
-------------------------------------
Never fight an inanimate object
-------------------------------------
You've achieved success in your field when you don't know whether what
you're doing is work or play





> Cheers,
> Peter
>
>> -----Original Message-----
>> From: Dimitre Novatchev [mailto:dnovatchev@gmail.com]
>> Sent: December 2, 2008 11:57 PM
>> To: Rushforth, Peter
>> Cc: xml-dev@lists.xml.org; Costello, Roger L.
>> Subject: Re: [xml-dev] Feasibility of "do all application
>> coding in the XML languages"?
>>
>> On Tue, Dec 2, 2008 at 7:23 AM, Rushforth, Peter
>> <Peter.Rushforth@nrcan-rncan.gc.ca> wrote:
>>
>> > I think there's  a lot of value in such interfaces.  It
>> would be nice
>> > if it didn't involve having to write a parser each time,
>> but the cost
>> > is not too high, I think
>>
>> The cost is not high, especially if one uses a general and
>> portable native XSLT 2.0 parser writing tool, such as the
>> LR(1) Parsing Framework of FXSL,
>>
>>
>> http://fxsl.cvs.sourceforge.net/viewvc/fxsl/fxsl-xslt2/f/func-
>> lrParse.xsl?revision=1.7&view=markup&sortby=date
>>
>>
>>
>> --
>> Cheers,
>> Dimitre Novatchev
>> ---------------------------------------
>> Truly great madness cannot be achieved without significant
>> intelligence.
>> ---------------------------------------
>> To invent, you need a good imagination and a pile of junk
>> -------------------------------------
>> Never fight an inanimate object
>> -------------------------------------
>> You've achieved success in your field when you don't know
>> whether what you're doing is work or play
>>
>