[Expat-discuss] Event callbacks for every Tag

[Régis St-Gelais (Laubrass)]

----- Original Message ----- 
From: Mukesh Kumar
To: Régis St-Gelais (Laubrass)
Sent: Thursday, February 22, 2007 7:36 AM
Subject: RE: [Expat-discuss] Event callbacks for every Tag

>You mean user defined functions or r u talking about performance or can you 
>tell me whether you are able to parse the xml file or not ?

Mukesh,

If I understood correctly your question was:
can I call a different function for each tag ?

Here is a more detailed sample code:

static void XMLhndl_ElementEnd(void *userData, const char *strElement);
static void XMLhndl_ElementEnd_Tag1(void *userData, const char *strElement);
static void XMLhndl_ElementEnd_Tag2(void *userData, const char *strElement);

static void XMLhndl_ElementEnd(void *userData, const char *strElement)    // 
This is tha callback called by expat
 {
 if (strcmp(strElement,"TAG1")==0)
  {
  XMLhndl_ElementEnd_Tag1(userData,strElement);    // Call your own fonction 
when TAG1 is found
  return;
  }

 if (strcmp(strElement,"TAG2")==0)
  {
  XMLhndl_ElementEnd_Tag2(userData,strElement);    // Call your own fonction 
when TAG2 is found
  return;
  }
}

static void XMLhndl_ElementEnd_Tag1(void *userData, const char *strElement)
 {
// do some thing with tag 1 data
 }

static void XMLhndl_ElementEnd_Tag2(void *userData, const char *strElement)
 {
// do some thing with tag 2 data
 }

If this does not do what you want, then I don't undestand your question.

Regis St-Gelais
www.laubrass.com


-----Original Message-----
From: expat-discuss-bounces at libexpat.org 
[mailto:expat-discuss-bounces at libexpat.org] On Behalf Of Régis St-Gelais 
(Laubrass)
Sent: Thursday, February 22, 2007 5:51 PM
To: Mandeep Ahuja; expat-discuss at libexpat.org
Subject: Re: [Expat-discuss] Event callbacks for every Tag


----- Original Message ----- 
  From: Mandeep Ahuja
  To: expat-discuss at libexpat.org
  Sent: Wednesday, February 21, 2007 7:27 PM
  Subject: [Expat-discuss] Event callbacks for every Tag


>  Hi, I am new user of the expat library. My application requires different 
> code to be run on different xml tags when they are found and on the fly. I 
> have learned expat is event >driven, but only one function is calledback 
> on every tag found (endElement). My question is, can expat callback 
> different functions based on tag found, meaning a unique >callback for 
> every tag. Is that possible?
>  Please help me out
>
>You can do something like that:
>In the unic element_end callback, you multiplex your different callbacks 
>based on the tag.
>
> {
> if (strcmp(strElement,"TAG1")==0)
>  {
>  // call your callback for TAG1 here
>  return;
>  }
>
> if (strcmp(strElement,"TAG2")==0)
>  {
>  // call your callback for TAG2 here
>  return;
>  }
>
>}

>Regis St-Gelais
>www.laubrass.com