Re: [xml] search for a match in the tree and return a node pointer

["Zichao Mao" <mzichao hotmail com>]

another question, how do I define a node pointer as return type? Like, what 
should I put here:

(static char*, is this right?) findContent (const char* searchStr, 
xmlNodePtr cur)


Thanks.

> From: "Zichao Mao" <mzichao hotmail com>
> To: brasilino recife pe gov br
> CC: xml gnome org
> Subject: Re: [xml] search for a match in the tree and return a node pointer
> Date: Wed, 14 Apr 2004 09:10:34 -0700
>
> Thank you for your reply, Lucas.
>
> When you say I can return whatever I like: a maching node pointer, a
> > pointer to content node which is child of maching node...could you give me 
> > an example? I only know how to return the contentitself using 
> > xmlNodeListGetString.  What about others?
>
> On the second part, when you say a recursive function would do the trick, 
> do you mean like this:
>
> for (cur_node = cur; cur_node; cur_node = cur_node->children)
> {
> head->pair->name = cur->name;
> head->pair->content = cur->children->content;
> head->next = cur->children;
> }
> return head;
> }
> I want to return all the names and contents from the tree to my structure, 
> head.
>
> Thank you.
>
> > From: Lucas Brasilino <brasilino recife pe gov br>
> > To: Zichao Mao <mzichao hotmail com>
> > CC: xml gnome org
> > Subject: Re: [xml] search for a match in the tree and return a node 
> > pointer
> > Date: Wed, 14 Apr 2004 08:30:57 -0300
> >
> > > Hi,
> >         Hi
> >
> > > I want to search for a match in the tree and return a node pointer.  I 
> > > don't know what functions to use in libxml2. Here's my code:
> > >
> > > ??? findContent (const char* searchStr, xmlNodePtr cur)
> > > {
> > > xmlNodePtr cur_node = NULL;
> > > for (cur_node = cur; cur_node; cur_node = cur_node->next)
> > > {
> > > if (!xmlStrcmp(cur->name, (const xmlChar*)searchChar)) return ???;
> > > else if (!xmlStrcmp(cur->name, (const xmlChar*)searchChar)) return ???;
> > > }
> > > }
> >         I didn't undestand. You're using searchStr and checking node's
> > name against searchChar??! Well, considering it a typo this snippet
> > seems to work, but be aware both conditionals are equal.
> >         You can return whatever you like: a maching node pointer, a
> > pointer to content node which is child of maching node, the content
> > itself (xmlNodeListGetString).
> >         For the sake of consistency, I think findContent() should
> > be declared using searchStr as const xmlChar * and casts searchStr
> > when calling findContent().
> >
> > > Then, in the next function, FindAllContents(???) //something like, 
> > > xmlNodePtr ptr
> > > {
> > > //location pointer from FindContent() is the input, output returns all 
> > > items and contents for that node; what structures or functions should I 
> > > use?
> > > }
> > >
> > > A code example would be helpful.  Thank you.
> >
> >         Since looks like you don't want to use XPath (which should be
> > *lot* easier) you must walk throught the entire tree, mostly using a lot
> > of loops :) A recursive function should do the trick.
> >
> > --
> >
> > []'s
> > Lucas Brasilino
> > brasilino recife pe gov br
> > http://www.recife.pe.gov.br
> > Emprel -        Empresa Municipal de Informatica (pt_BR)
> >                 Municipal Computing Enterprise (en_US)
> > Recife - Pernambuco - Brasil
> > Fone: +55-81-34167078
> >
> > _______________________________________________
> > xml mailing list, project page  http://xmlsoft.org/
> > xml gnome org
> > http://mail.gnome.org/mailman/listinfo/xml
>
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