On Wed, Feb 04, 2004 at 01:07:01AM +0400, David Tolpin wrote:
It should not be a feature of the language; it is a debugging
facility; moreover, it is a debugging facility using information
exterior to the language to issue a message.
Just as a small point of discussion, C, C++, Java, Perl, Python, Ruby,
Smalltalk, Lisp, Scheme, ML, Forth, and any-other-language-you-can-name
does not need to morph the language design to support debugging features.
Debugging is a feature of the language implementation. If it needs to
bleed through into the language design, then the debugging features are
a leaky abstraction.
It's all well and good that implementors decided to agree on how to
debug a stylesheet transformation, and agreed to use post-validation
with a schema. But that *extension* doesn't need to be part of the
language design.
Z.
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