[jdom-interest] Text replacement

Mattias Jiderhamn mj-lists at expertsystems.se
Mon May 8 05:49:24 PDT 2006 

Sounds like it would be easier to use JSP with custom tags, if your 
environment permits.

At 2006-05-06 01:14, Leonardo Barbosa wrote:
>First of all, thanks everybody for your help!
>And sorry about the reply for your email, I didn't see it.
>
>OK, here is an example of my template:
>
>...
>$LINK ..
>So, as you can see, I have <brtpchamada>, <brtpolho> and <brtptitulo>
>proprietary tags. These are responsable to map where and what kind of
>data should be there.
>I use to have a <brtplink> to indicate where where I should create the
><a href="">. But now I need to worry about javascript's, inside every
>tag (<img>, <a>, etc), and in the text of all elements. Actually, all
>elements that are inside the <brtpchamada> tag. Thats where come the
>context problem: the $LINK in the <brtpchamada> with id="1" is
>diferente from the $LINK in the <brtpchamada> with id="2". So, to
>create the replacement list, I do this:
>
>HashMap replacement = new HashMap();
>
>Iterator chamadaIterator = root.getDescendants(new
>ElementFilter("brtpchamada"));
>while (chamadaIterator.hasNext()) {
>     // read stuf from the database for this chamada, with id = 1 or id
>= 2 for this example
>
>     // ElementStartsFilter is a new filter that I created to filter,
>as the name says, only
>     // elements that starts with "brtp".
>     Iterator filhosIterator = chamadaTagAtual.getDescendants(new
>ElementStartsFilter("brtp"));
>     while (filhosIterator.hasNext()) {
>         Element filhoTagChamadaAtual = (Element) filhosIterator.next();
>         Element conteudoTag = new Element("abc");
>
>         // do some processing here, acording to this <chamada> tag,
>and modify conteudoTag
>
>         replacement.put(filhoTagChamadaAtual, conteudoTag);
>     }
>}
>
>// This funcion replaces the key of the hashmap for the value in the document
>replaceAllTags(replacement);
>
>Now is the trick part: for every content inside the <chamada> tag, I
>need to replace $LINK for a SPECIFIC url to this <brtpchamada> (id = 1
>or id = 2 in this template that I used for example).
>
>Now, how can I do that? Or am I freaking out the porpouse of 
>getDescendents? :-)
>
>After Thomas reply, I thought about to do somenthing like this (of
>course I will need to learn the java.util.regex.* first ;-)
>
>String document = LoadFile("document.tpl");
>
>// supose for a minute that its like perl :-)
>while(document.matches("<brtpchamada>(.+)</brtpchamada>")){
>     String content = document.lastMatch();
>     content.replaceAll("<brtptitulo\>", getDataForThis());
>     content.replaceAll("LINK", getLinkForThis());
>     // etc
>     document.replaceAll("<brtpchamada>(.+)</brtpchamada>", contet);
>}
>
>but the problem here is that I would need to grep all atributes, to
>get <brtpchamada id="1"> id for example, replace empty tags or not
>empty tags (<brtptitulo/> could be <brtptitulo>...</brtptitulo> for
>example), and do all that stuff that I think jdom does much better
>then I do...
>
>I hope I was more clear at this time.
>
>Best reagards and thanks again,
>Leonardo Barbosa
>
>On 5/5/06, Edelson, Justin <Justin.Edelson at mtvn.com> wrote:
> >
> > I was actually suggesting (as did Thomas) to not use JDOM at all and just
> > use regex across the whole document. But now you're saying that the
> > replacement text is somehow related to the context within the XML document.
> >
> > Can you provide some more detail?
> >
> > And please respond to the list, not to me individually.
> >
> > Justin
> >
> >  ________________________________
> >  From: Leonardo Barbosa [mailto:lsbarbosa at gmail.com]
> > Sent: Friday, May 05, 2006 4:38 PM
> > To: Edelson, Justin
> > Subject: Re: [jdom-interest] Text replacement
> >
> >
> > Thanks Justin!
> >
> > Infact, the problem with creating the string and using replaceAll is that I
> > don't have the output ready at this time. I'm iterating over the <chamada>
> > tags and, for each one, I need to replace all ocurrences of $REPLACE_THIS
> > with a spacific value, for that <chamada> tag. To be more specific, each
> > <chamada> tag has a url associated with it, according to it's position in
> > the XML.
> >
> > So, to replace using replaceAll, wouldnt I need to create an String out
> > using XMLOutputter for each <chamada> tag, and them use the SAXParser to
> > create the JDOM model again, and atach this new JDOM model to the old one?
> >
> > I mean, I can't reaplace in the and, when I finish processing the document,
> > beacause its the same string $REPLACE_ALL with diferent values.. 
> I could ask
> > the client to use diferente names, but i could generate errors, I upset him
> > :-)
> >
> > Thanks again for your help,
> > Leonardo Barbosa.
> >
> >
> > On 5/5/06, Edelson, Justin <Justin.Edelson at mtvn.com > wrote:
> > >
> > >
> > > I'd first look at whether or not you need ANY kind of XML processing for
> > this. If all you are doing is replacing $REPLACE_THIS with some 
> string, then
> > you could just get the template into a String object and do
> > > string.replaceAll("\$REPLACE_THIS", replacementString);
> > > (because replaceAll expects a RegEx, you need to escape the dollar sign)
> > >
> > > Doing this wouldn't even require "tidying" up the doc.
> > >
> > >
> > > ________________________________
> >  From: jdom-interest-bounces at jdom.org
> > [mailto:jdom-interest-bounces at jdom.org] On Behalf Of Leonardo Barbosa
> > > Sent: Friday, May 05, 2006 2:10 PM
> > > To: jdom-interest at jdom.org
> > > Subject: [jdom-interest] Text replacement
> > >
> > >
> > >
> > > Hi!
> > >
> > > I'm new to jdom and xml, so sorry if this is non sense.
> > > I read a xml template (a html to be true, transformed to XML using tidy)
> > file from my client, and want to change all ocurrences of one text to
> > something else. It will probably be inside some javascript, something like
> > > <a href="#"
> > onclick="javascript:openLink($REPLACE_THIS);">
> > >
> > > bu could be in the text of some <script> tag for example:
> > > <script>
> > > funcion onclick(){
> > >      opeanUrl("REPLACE_THIS");
> > > }
> > > </script>
> > >
> > > There only one more thing: It needs to be inside some tag, the one that
> > defines the link url:
> > >
> > > <chamada>
> > > 1         <a href="#"
> > onclick="openLink($REPLACE_THIS);">click here</a>
> > > </chamada>
> > >
> > > <chamada>
> > > 2         <a href="#"
> > onclick="openLink($REPLACE_THIS);">$REPLACE_THIS</a>
> > > </chamada>
> > >
> > >
> > > Is there a way to do this with jdom API, without getting all Descendents
> > from the tag <chamada> and looking inside its Text and Attributes ?
> > > something like:
> > >
> > >         Iterator chamadaIterator = root.getDescendants (new
> > ElementFilter("chamada"));
> > >         while (chamadaIterator.hasNext()) {
> > >                Element chamadaTag = (Element) chamadaIterator.next();
> > >                chamadaTag.setTextReplacement("$REPLACE_THIS", "
> > http://www.thinkgeek.org");
> > >         }
> > >
> > > I've searched the forum and found some ideas aboute html entities, but it
> > seams to be not the case, since I have one value for the whole document.
> > >
> > > I no that it seeas to be lazyness :-)
> > > But in fact I'm trying to avoid some desnecessary loop inside all
> > elements, all texts from theese elements, and all attributes from theese
> > elements.
> > >
> > > Thanks in advance,
> > > Leonardo Barbosa
> > > lsbarbosa at gmail.com
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