[Expat-discuss] Text data handler

[Greg Martin]

> -----Original Message-----
> From: expat-discuss-bounces at libexpat.org
> [mailto:expat-discuss-bounces at libexpat.org]On Behalf Of Thomás Inskip
> Sent: Friday, May 21, 2004 2:29 PM
> To: Karl Waclawek
> Cc: expat-discuss at libexpat.org
> Subject: Re: [Expat-discuss] Text data handler
> 
> 
> It turns out the problem is very different, and I had made an invalid 
> assumption.  There are two "outermost" xml elements being parsed, one 
> after the other.  The first one contains no element data (only 
> attributes), but the second one does.  So I am dealing with something 
> that looks like:
> 
> <a>
> <b attribute="value"></b>
> </a>
> <c>
> <d>some text</d>
> </c>
> 
> But without the linefeeds.  I had assumed that the problem 
> was that my 
> text callback handler was the problem because I already knew that my 
> element start and end handlers were being called (for "a" and its 
> sub-elements).
> 
> The manual says something about needing a separate parser for each 
> "document".  What is the exact definition of a document?  Is 
> a document 
> a data stream, or is the above two separate documents because 
> there are 
> two top-level elements (one defined by element a, and the 
> other one by 
> element d)?  Perhaps Expat was not meant to do what I am asking it to 
> do.
> 

A couple of comments. First to your question ... a document can only have 
one top-level element. You should check the return value of XML_Parse for 
failure (I suspect it would have returned an error in your case) and if 
you are passing all your data in one pass the final parameter of XML_Parse 
should be true to indicate that it is your final call (or you should make a
final call to XML_Parse of length 0 and a fourth parameter == true).