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Using SAX to get the contents of a node

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Andy Burnett

Using SAX to get the contents of a node

I am trying to use the SAXHandler (Pharo 1.2.1) to parse a delicious rss feed. I want to get the contents of a tag, i.e. the text that lies between the opening tag and the closing tag.

Thanks to Laurent's excellent video I understand how to access the attributes (using startElement:attributes:), but I can't work out how to get the intra-tag text. I am sure it is a simple call, but could someone point me in the right direction?

Cheers

Andy

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dcorking

Re: Using SAX to get the contents of a node

On Sat, Apr 16, 2011 at 1:50 AM, Andy Burnett wrote:
> I am trying to use the SAXHandler (Pharo 1.2.1) to parse a delicious rss
> feed. I want to get the contents of a tag

I hope a guess does less harm than good. This example looks relevant:

http://wiki.squeak.org:8080/squeak/505

unless the Pharo version of the code has changed greatly from the
version used by the wiki writers.
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hernanmd

Re: Using SAX to get the contents of a node

In reply to this post by Andy Burnett

Write a method

YourSAXParser>>characters: aString

to access the contents of the current node in aString. YourSAXParser
should be a subclass of SAXHandler.
Cheers,

2011/4/15 Andy Burnett <[hidden email]>:

> I am trying to use the SAXHandler (Pharo 1.2.1) to parse a delicious rss
> feed. I want to get the contents of a tag, i.e. the text that lies between
> the opening tag and the closing tag.
> Thanks to Laurent's excellent video I understand how to access the
> attributes (using startElement:attributes:), but I can't work out how to get
> the intra-tag text. I am sure it is a simple call, but could someone point
> me in the right direction?
> Cheers
> Andy
> _______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
>

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Hernán Morales
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National Scientific and Technical Research Council (CONICET).
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Telephone: +54 (0221) 421-1799.
Internal: 422
Fax: 425-7980 or 421-1799.
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Andy Burnett

Re: Using SAX to get the contents of a node

In reply to this post by Andy Burnett

<< David Corking said..

> I am trying to use the SAXHandler (Pharo 1.2.1) to parse a delicious rss
> feed. I want to get the contents of a tag

I hope a guess does less harm than good. This example looks relevant:

http://wiki.squeak.org:8080/squeak/505

unless the Pharo version of the code has changed greatly from the
version used by the wiki writers.>>

Thanks David, that is a really useful resource.

Cheers

Andy

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Andy Burnett

Re: Using SAX to get the contents of a node

In reply to this post by Andy Burnett

hernan.morales said

<<
Write a method

YourSAXParser>>characters: aString

to access the contents of the current node in aString. YourSAXParser
should be a subclass of SAXHandler.

Thanks Hernan, I now have a working system.

Cheers

Andy

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David Mitchell-10

Re: Using SAX to get the contents of a node

I don't know if this caution applies in Squeak, but in Java land, the SAX parsers don't guarantee that there is only one call to character for the text between the tags. That is, you can't set aString directly, you have to build up the response in case there are multiple calls to the character method.

On Tue, Apr 19, 2011 at 1:50 PM, Andy Burnett <[hidden email]> wrote:

hernan.morales said

<<
Write a method

YourSAXParser>>characters: aString

to access the contents of the current node in aString. YourSAXParser
should be a subclass of SAXHandler.
>>

Thanks Hernan, I now have a working system.

Cheers

Andy

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