XOM API for Processing XML with Java

[Wolfgang Hoschek <whoschek AT lbl.gov>]

Thanks. I'll try this when I can find some time. At first glance you 
could avoid any XMLReader cost for the common case (at least my common 
case) of an empty internal subset via:

   public final void setInternalDTDSubset(String subset) {

        //if (subset != null) { ...
        if (subset != null && subset.length() > 0) { ...



On Jan 8, 2005, at 8:28 AM, Elliotte Harold wrote:

> I don't know if I'm going to do a formal announcement or package a 
> release or anything, but subscribers to this list may be interested to 
> know that I've just checked some changes into CVS that allow an 
> internal DTD subset to be specified as a string.
>
> The publicly visible changes are the only addition of one method to 
> the DocType class:
>
> public void setInternalDTDSubset(String subset)
>
> Behind the scenes, there's quite a bit more going on, some of which I 
> know Wolfgang is going to hate because I've introduced another 
> multithreading bottleneck in the Verifier class: a single static 
> instance of XMLReader. However this should only affect the 
> setInternalDTDSubset method. The alternative was to create a new 
> XMLReader object for each call to setInternalDTDSubset, and that 
> seemed way too heavyweight. I can't imagine that there'll be that many 
> or frequent calls to setInternalDTDSubset, but if this actually proves 
> to be a performance hit, then maybe I can explore using ThreadLocals 
> instead.
>
> I'm particularly curious to know if anyone can break the 
> setInternalDTDSubset method. I foresee several possible failure modes:
>
> 1. Rejecting a well-formed subset
> 2. Accepting a malformed subset
> 3. Loading external entities
>
> I've added a few unit tests for all this, but I may not have covered 
> all bases, or anticipated every devious thing that could be done, If 
> anyone spots a hole in my coverage, please holler.
>
> --
> Elliotte Rusty Harold  elharo AT metalab.unc.edu
> XML in a Nutshell 3rd Edition Just Published!
> http://www.cafeconleche.org/books/xian3/
> http://www.amazon.com/exec/obidos/ISBN=0596007647/cafeaulaitA/ref=nosim
>
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