Re: [Pharo-users] How to access XML tag name?

[stepharo]

This is more complex than that.
Because I would like to have a visitor generated from the token I give.

And this
    start
    character
    end

does not really help me.

Because in SAXHandler I have
        start
            where I should store the properties
       same in characters:
            to store the name
       end
            where I should invoke the visitor

Now it means that I should only store the information for the tag I want.
Does anybody already did that and publish it?
I know doru did that in the past.
I will try.

Stef



Le 11/3/16 14:17, Blondeau Vincent a écrit :

Hi,

The qualified name in function startElement: aQualifiedName attributes: 
aDictionary, will be FILMS and after FILM and after TITRE,...etc...
So, you have to tell to your shouldVisit: method to accept TITRE too and get in 
and after you should implement characters: to get the content on the tag.

Vincent

-----Message d'origine-----
De : Pharo-users [mailto:pharo-users-boun...@lists.pharo.org] De la part de
stepharo
Envoyé : vendredi 11 mars 2016 14:04
À : Any question about pharo is welcome
Objet : [Pharo-users] How to access XML tag name?

Hi

Yesterday I started to hack a smart SAX handler. The idea is that I want to just
specify the tags I want to visit and the SAX handler should invoke (generated)
visit methods. Like that I can easily get visitors on XML domain.

Here is an example of what I did.

      | h |
      h := SmartSAXHandler new
                  visitor: (MyFilmVisitor new visitTags: #(FILM ROLE));
                  on: FileSystem workingDirectory / 'FILMS.XML'.
      h parseDocument.
      ^ h



SmartSAXHAndler >> startElement: aQualifiedName attributes: aDictionary

      (visitor shouldVisit: aQualifiedName)
          ifTrue: [
                  visitor
                      perform: (visitor createdVisitSelector: aQualifiedName)
                      with: aQualifiedName
                      with: aDictionary
          ]


Object subclass: #GenericTagSAXVisitor
      instanceVariableNames: 'visitTag visitTags'
      classVariableNames: ''
      category: 'SmartXMLHandler'


GenericTagSAXVisitor>>visitTags: aCollection
      "set the tags that will lead to a call to a visitTag:with: method in the 
visitor"

      visitTags := aCollection collect: [ :each | each asLowercase ].
      self createVisitMethods.

and in a subclass the visit* methods automatically generated


Now I could not get when I have a <TITRE>Vertigo</TITRE> where I can get the
Vertigo information.
I redefined several methods of SAXhandler but without success.


<?xml version="1.0" encoding="iso-8859-1"?>
<FILMS>
    <FILM annee="1958">
      <TITRE>Vertigo</TITRE>
      <GENRE>Drame</GENRE>
      <PAYS>USA</PAYS>
      <MES idref="3"/>
      <ROLES>
        <ROLE>
          <PRENOM>James</PRENOM>
          <NOM>Stewart</NOM>
          <INTITULE>John Ferguson</INTITULE>
        </ROLE>
        <ROLE>
          <PRENOM>Kim</PRENOM>
          <NOM>Novak</NOM>
          <INTITULE>Madeleine Elster</INTITULE>
        </ROLE>
      </ROLES>
      <RESUME>Scottie Ferguson, ancien inspecteur de police, est sujet
au vertige depuis qu'il a vu mourir son
   collegue. Elster, son ami, le charge de surveiller sa femme,
Madeleine, ayant des tendances
   suicidaires. Amoureux de la jeune femme Scottie ne remarque pas le
piege qui se trame autour
   de lui et dont il va etre la victime... </RESUME>
    </FILM>

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