Am 02.02.2005 um 18:35 schrieb David Shaffer:

stéphane ducasse wrote:

...

Hi

I'm trying to understand how to use Yaxo and I cannot figure out what is the difference between the SAXDriver and SAXHandler. Of course there is no comment, no reference to the class SAXHandler.... Does anybody has an example?

Stef

PS: this is not a fatality, this is a state of mind!

Stef,

SAX is an event drive API for processing XML documents. While java-based it is relatively standard across languages. There are several Java resources but here's one which helped me:

http://www.saxproject.org/

Most implementations of SAX (including the one included with the "full" 3.7 image) are mostly "2.0" compliant which seems to me including XML namespaces (someone correct me if I'm wrong here) so the sample code on these pages which specifically deals with namespaces also transfers well to Smalltalk. As for Smalltalk examples, well, look at the subclasses of SAXHandler...one of these uses SAX to build the somewhat standard DOM tree. So, one has two choices when dealing with XML: event drive with SAX (usually, but not always, building the tree yourself) or DOM where the XML tree gets build from generic components (XMLElements).

For quick results I just use the XMLDOMParser. Open an explorer on this:

XMLDOMParser addressBookXMLWithDTD

Then you can traverse the resulting XMLDocument tree and extract whatever you need.

- Bert -

Brent Pinkney wrote:

Hi,

Where does one download YAXO from.

The http://www.squeaklet.com/Yax/index.html URL referenced from SqueakMap does not respond ?

merci

Brent

I happened to have an old copy hanging around and used that. The URL for YAXO has been down for at least a week. I am attaching the version I have.

Mike this is on my to do list to do a pass and try to add some comments to the classes. I will force me to understand SAX and the rest

Stef

On 8 févr. 05, at 8:17, Michael Rueger wrote:

Brent Pinkney wrote:

...

Hi, Where does one download YAXO from. The http://www.squeaklet.com/Yax/index.html URL referenced from SqueakMap does not respond ?

It's now at http://kilana.unibe.ch:8888/XMLSupport/XML-Parser-mir.2.mcz

I need to update the SM entry, forgot my password and resetting doesn't work currently (probably a hickup in the new server con?)

TelnetProtocolError: 553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)

Michael

Thanks all

My point may have not be that clear> I had a vague knowledge about sax event and dom tree in memory. Then why I like Smalltalk is that with some comments and a bunch of examples I do not need a doc: I always remember the quote of Dan about the fact that one single person could learn it and this is the learning part that is important for me. I do not like comments or examples for the sake of them, I do because I want to let other learning.

So each time I learn something new I try yo write it as tests or as comments and yesterday my network connection was down so not browsing of internet resources the night.....only squeak classes without examples and comments.

Am 02.02.2005 um 18:35 schrieb David Shaffer:

...

stéphane ducasse wrote:

...

Hi

I'm trying to understand how to use Yaxo and I cannot figure out what is the difference between the SAXDriver and SAXHandler. Of course there is no comment, no reference to the class SAXHandler.... Does anybody has an example?

Stef

PS: this is not a fatality, this is a state of mind!

Stef,

SAX is an event drive API for processing XML documents. While java-based it is relatively standard across languages. There are several Java resources but here's one which helped me:

http://www.saxproject.org/

Most implementations of SAX (including the one included with the "full" 3.7 image) are mostly "2.0" compliant which seems to me including XML namespaces (someone correct me if I'm wrong here) so the sample code on these pages which specifically deals with namespaces also transfers well to Smalltalk. As for Smalltalk examples, well, look at the subclasses of SAXHandler...one of these uses SAX to build the somewhat standard DOM tree. So, one has two choices when dealing with XML: event drive with SAX (usually, but not always, building the tree yourself) or DOM where the XML tree gets build from generic components (XMLElements).

For quick results I just use the XMLDOMParser. Open an explorer on this:

XMLDOMParser addressBookXMLWithDTD

Then you can traverse the resulting XMLDocument tree and extract whatever you need.

• Bert -

tx may be this should be packaged with yaxo

On 3 févr. 05, at 15:36, Jason Rogers wrote:

stéphane ducasse wrote:

...

Thanks all

My point may have not be that clear> I had a vague knowledge about sax event and dom tree in memory. Then why I like Smalltalk is that with some comments and a bunch of examples I do not need a doc: I always remember the quote of Dan about the fact that one single person could learn it and this is the learning part that is important for me. I do not like comments or examples for the sake of them, I do because I want to let other learning.

So each time I learn something new I try yo write it as tests or as comments and yesterday my network connection was down so not browsing of internet resources the night.....only squeak classes without examples and comments.

Attached is another example for the XMLDOMParser.

-- Jason Rogers

"I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me." Galatians 2:20

<YaxoExamples.1.cs.gz>