Re: [xml] document() and import() handlers

[Matt Sergeant <matt sergeant org>]

On Mon, 12 Mar 2001, Robert Klep wrote:

>  >>   match() should not need it
>  >It doesn't need it if implementing in C space, but Perl is a dynamic
>  >language, so I want to be able to set the match conditions in Perl space.
>  >Without any sort of context pointer I can't do that (because I have no
>  >way of knowing what Perl sub to call from within C-space).
>
> Matt,
>
> As you already stated yourself, you can use a global variable for this.
>
> If you want thread-safety (which I wanted), however, you'll have to resort
> to something more obscure: in my case, I used an extension of gcc called
> 'nested functions' (defining functions in functions). These functions are
> scoped within their 'parent', and can access all of its variables and
> arguments.

Right, similar to what I need from Perl-space...

> I know it's not portable (in fact, I stumbled upon an internal gcc bug
> implementing it), but I use gcc as the only compiler for my project, and
> the code is surrounded with a big #ifdef __GNUC__ :)

Sadly for a Perl module that anyone can use I can't force compilers on
anyone, and it's a pretty much required feature. I'll stick to globals.

Daniel, you didn't respond to my (admittedly hidden) question about
whether xmlInitParser created a mutex until the parse phase ends? If so,
the global doesn't matter too much.

-- 
<Matt/>

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