Is XMLWriter in the upcoming 1.2 image? It is not in the 1.1 image. --Hannes On 11/3/10, Hannes Hirzel <hannes.hirzel@gmail.com> wrote:

Thank you Stef, for pointing this out.

I had a look at Torsten's email of July 6th about XMLWriter and the subsequent discussion.

Yes, an alternative approach would be to model an XML generation API along the lines of Seaside html rendering -- with blocks instead of start/end messages.

Has there some work going on elsewhere besides what Torsten did? http://squeaksource.com/PharoGoodies/XMLWriter-tbn.5.mcz

--Hannes

N.B. This is only about 'XML writing' NOT about XML parsing. The idea is to have an API which allows to have readable XML generation code with an implementation which does not consume much memory. And with enough examples and tests.

On 11/2/10, Stéphane Ducasse <stephane.ducasse@inria.fr> wrote:

...

Thanks hannes I think that the XMLWriter offers a bit something similar influenced by seaside DSL.

Stef

On Nov 1, 2010, at 10:58 PM, Hannes Hirzel wrote:

...

Hello

I read the post by Stephane Ducasse about writing XML (see below) with a bibliography example.

Recently I (re)-discovered the port to Squeak/Pharo of the Writing API for XML (WAX) (http://java.ociweb.com/mark/programming/WAX.html) and could put it to good use for writing an XML file a bit more complex than the bibliography example.

From the web site WAX has the following characteristics:

* focuses on writing XML, not reading it * requires less code than other approaches * uses less memory than other approaches (because it outputs XML as each method is called rather than storing it in a DOM-like structure and outputting it later) * writes all XML node types * always outputs well-formed XML or throws an exception unless running in "trust me" mode * knows how to associate DTDs, XML Schemas and XSLT stylesheets with the XML it outputs * is well-suited for writing XML request and response messages for REST-based and SOAP-based services

However I do not know how far these points apply to the Squeak/Pharo port. http://www.squeaksource.com/WAX It needs the VB Regex package (http://www.squeaksource.com/Regex)

As an exercise I did the code to produce the example Stephane gave. It worked fine; see below.

Regards Hannes

==========================================================

WAX new stream: (FileStream newFileNamed: 'myBibliography.xml'); writeXMLDeclaration: #1.0; start: 'BDBase'; attr: 'date' value: '25 May 2010'; attr: 'note' value: 'nil';

start: 'bd'; attr: 'authors' value: 'Larcenet'; attr: 'editor' value: 'Dargaud'; attr: 'entryCreationDate' value: '25 March 2006'; attr: 'entryNumber' value: '1'; attr: 'number' value: '1'; attr: 'original' value: 'true'; attr: 'serie' value: 'Nic oumouk'; attr: 'serieComplete' value: 'false'; attr: 'title' value: 'Total souk pour nic oumouk'; attr: 'year' value: '2005'; end;

start: 'bd'; attr: 'authors' value: 'Greg'; attr: 'editor' value: 'Dargaud'; attr: 'entryCreationDate' value: '5 May 2006'; attr: 'entryNumber' value: '2'; attr: 'notes' value: 'sur le 4eme de couv aventure a manhattan'; attr: 'number' value: '9'; attr: 'original' value: 'true'; attr: 'serie' value: 'Achille Talon'; attr: 'title' value: 'Les petits desseins d''Achille Talon'; attr: 'year' value: '1974'; end;

start: 'bd'; attr: 'authors' value: 'Greg'; attr: 'editor' value: 'Dargaud'; attr: 'entryCreationDate' value: '5 May 2006'; attr: 'entryNumber' value: '3'; attr: 'notes' value: 'sur la couverture une histoire du journal tintin'; attr: 'number' value: '13'; attr: 'original' value: 'true'; attr: 'serie' value: 'Achille Talon'; attr: 'title' value: 'Pas de pitié pour Achille Talon'; attr: 'year' value: '1976'; end; end; close.

========================================================== Output <?xml version="1.0" encoding="UTF-8"?> <BDBase date="25 May 2010" note="nil"> <bd authors="Larcenet" editor="Dargaud" entryCreationDate="25 March 2006" entryNumber="1" number="1" original="true" serie="Nic oumouk" serieComplete="false" title="Total souk pour nic oumouk" year="2005"/> <bd authors="Greg" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="2" notes="sur le 4eme de couv aventure a manhattan" number="9" original="true" serie="Achille Talon" title="Les petits desseins d'Achille Talon" year="1974"/> <bd authors="Greg" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="3" notes="sur la couverture une histoire du journal tintin" number="13" original="true" serie="Achille Talon" title="Pas de pitié pour Achille Talon" year="1976"/> </BDBase>

==========================================================

On 10/31/10, stephane ducasse <stephane.ducasse@free.fr> wrote:

...

How can I control that each of the node of my document get printed a cr at its end?

In the past I got that

<?xml version="1.0" encoding="UTF-8" ?> <BDBase date="25 May 2010" entriesNumber="2440" note="nil"> <bd authors="Larcenet" editor="Dargaud" entryCreationDate="25 March 2006" entryNumber="1" number="1" original="true" serie="Nic oumouk" serieComplete="false" title="Total souk pour nic oumouk" year="2005"/> <bd authors="Greg" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="2" notes="sur le 4eme de couv aventure a manhattan" number="9" original="true" serie="Achille Talon" title="Les petits desseins d'Achille Talon" year="1974"/> <bd authors="Greg" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="3" notes="sur la couverture une histoire du journal tintin" number="13" original="true" serie="Achille Talon" title="Pas de pitié pour Achille Talon" year="1976"/> <bd aut

Now I get

<?xml version="1.0" encoding="UTF-8"?><Base date="31 October 2010" entriesNumber="2448" note="nil"><bd serieComplete="false" editor="Dargaud" entryCreationDate="25 March 2006" entryNumber="1" authors="Larcenet" title="Total souk pour nic oumouk" serie="Nic oumouk" original="true" number="1" year="2005" /><bd serieComplete="false" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="2" authors="Greg" title="Les petits desseins d'Achille Talon" serie="Achille Talon" original="true" notes="sur le 4eme de couv aventure a manhattan" number="9" year="1974" /><bd serieComplete="false" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="3" authors="Greg" title="Pas de pitié pour Achille Talon" serie="Achille Talon" original="true" notes="sur la couverture une histoire du journal tintin" number="13" year="1976" /><bd serieComplete="false" editor="Dargaud" entryCreationDate="5 May 2006" entryNumber="4" authors="Greg" title

Thanks

Stef

Jaayer, Thanks, I checked out MCHttpRepository location: 'http://www.squeaksource.com/XMLSupport' user: '' password: '' and looked at XML-Parser-tg.101 Right version? the class comment of XMLWriter This class allows you to generate well-formed XML documents using an API similar to Seaside's canvas and tag brush API. Markup can be created by sending an instance any of the messages under "writing markup." The messages that take no arguments return an instance of an XMLMarkupWriter subclass. These objects can be configured with messages like #name: and #attributeAt:put:. Sending them #write or a specific writing message that accepts markup to embed within (#content: or #internalSubset: for example) causes the markup writer's configuration to be committed and its markup written to the output stream. For markup writers that can have embedded markup, the argument to the writing message can be a string, collection (of strings and blocks), a block, or nil. The block passed in can optionally take an argument, which will be the XMLWriter object that created the markup writer object. Within the block you can generate additional, child markup that will be contained by the parent. Creating additional non-embedded markup will cause any unwritten markup from a previous markup writer to be written, as will sending an XMLWriter or XMLMarkupWriter #contents, #asString, #printOn:, or #write. Here is an example, which you can highlight and evaluate with cmd-p to see the result: | writer | (writer := XMLWriter new) enablePrettyPrinting. writer xml. writer tag name: 'foo:bar'; xmlnsAt: 'foo' put: 'http://foo'; attributeAt: 'a' put: 'one'; attributeAt: 'b' put: 'two'; content: [ writer tag: 'bar' content: [ writer string: 'test'; tag: 'baz'; tag: 'foobar' content: 'test']] Nice, as I know the Seaside html builder pattern. It is the same. Remark: I think it should be in its own package Instead of XML-Parser-Writers I'd like to have XML-Writer because writing has nothing to do with parsing. However at this point it is minor cosmetics. Another remark: An example using tags like name, author, title would be helpful as well in the class comment because one sees more easily what is going on. For the current problem at hand I have started using WAX and I think I will continue to do so. One reason it that I might want to port my App to Java when finished prototyping in Smalltalk. MCHttpRepository location: 'http://www.squeaksource.com/WAX' user: '' password: '' I have not found XMLWriter tests whereas WAX has a considerable number of them. As for XMLWriter, I surely will look at it again in a few months time. Regards Hannes On 11/5/10, jaayer <jaayer@zoho.com> wrote:

---- On Wed, 03 Nov 2010 11:28:13 -0700 Hannes Hirzel wrote ----

...

Is XMLWriter in the upcoming 1.2 image? It is not in the 1.1 image.

--Hannes

The new XML writer is in the more recent versions, from version 96 on, but at the moment you have to download it manually through Monticello or from the XMLSupport page on squeaksource.com, as the most recent Metacello configuration still points to v. 93. I'll try to update it shortly.