Re: [xml] Hi, all, about xmlParseChunk's number of calls of characters callback function.

[Daniel Veillard <veillard redhat com>]

On Mon, Jan 18, 2010 at 10:21:06AM +0800, Liu bbskill wrote:
> Hi,all
>
> I use xmlCreatePushParserCtxt and xmlParseChunk to parse a stream xml data.
> And I invoke xmlParseChunk every 4 chars.
>     while ((res = readPacket(chars, 4)) > 0) {
>         xmlParseChunk(ctxt, chars, res, 0);
>     }
>
>
>
> And I notice that for example,
> <text>very long text data .....  </text>,
> if  the content' s length is very long,  xmlParseChunk will invoke
> characters call back function,  once it parse every   300 characters.
>
> my characters callback function does only print them out. So ,if the
> content's length is 600. the characters will cause twice time, the first
> time to print the first 300 characters, and the second time to print the
> another 300.
>  And this behavior will destroy my application.
>
> So How should I do to let the xmlParseChunk only invoke the characters
> callback fucntion for just  ONE time, even the the content's length is very
> long??

  Sorry there is internal buffering for obvious performance issues,
libxml2 can't do what you ask.

Daniel

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