Re: FW: [OFF TOPIC] Using Expat with RPGLE part 2.

[Scott Klement <sk@xxxxxxxxxxxxxxxx>]

Sender: Scott Klement <sk@xxxxxxxxxxxxxxxx>

Hi Nicolas,

> I found with your XPATH program wich one is the last element that the 
> program read correctly, the next element is the data for a base64 
> encoded of a jpg image, let's say that that's not the problem, the issue 
> is that the element data is 37kb long, ok?

Expat may call your character data handler many times in order to give you 
all of the base64 encoded information.  Since it gets called many times, 
there's no real limit to how large the field can be.

Here's what I'd do:

a) have the start element handler open a stream file in the IFS.

b) in the character data handler, receive the data from the document, 
translate it to EBCDIC (with iconv API) and base64 decode it. Write the 
results to the stream file.  Note that the data needs to be an even 
multiple of 4 characters long, or you won't be able to base64 decode it. 
Decode as much of the data as you can, and save any extra characters 
for next time -- expat will call this routine over and over again until it 
has send you all of the character data.

c) In the end element handler, close the stream file.

> I mean betwen <tag> and </tag> are more than 37Kbytes, no CRLF, only base64
> caracters... Is there any restriction for that ?? in XML? or anywhere 
> else ?

Since Expat will call your character data handler as many times as it 
needs to, there's no limit to how large the data can be.  Well, except the 
limit of how big a file can be in the filesystem, or the amount of disk 
space you have...

Good luck!

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