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   Re: Python and JSON vs XML???

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> - The idea of programming languages in XML syntax seems to be on the
> wane (other than XSLT of course, which is not *really* a programming
> lanuage even if it is Turing-complete).  The idea of integrating XML
> ideas into programming languge syntax seems to be on the rise,  e.g.
> the JSON and Python stuff, E4X, C-omega and friends, Java's apparent
> plans in the Dolphin release, etc.  Anyone disagree?

I disagree.

Phil Wadler disagreed at the Summer School of Functional Programming 1982 
(Oxford) stating in his presentation that "XSLT is perhaps the most widely 
used functional programming language".

TIOBE Programming Community Index 
(http://www.tiobe.com/tiobe_index/tekst.htm) disagree. They have included 
XSLT in the group of programming languages that have the potential to become 
part of the top 50 in the near future. Some other programming languages in 
this group are: APL, Clean, Eiffel, Erlang, Haskell.

The fact that XSLT has a strong (multi-thousand) developer base and that 
there are several successful commercial IDE's for XSLT programming offering 
syntax (schema) -based intellisense editors and debuggers probably also 
shows that XSLT is not different from other programming languages.

XSLT is used and relied upon by definite user audiences for solving 
particular types of problems and XSLT is the best programming language for 
solving problems within its main problem-area -- tree processing.

Of course, it all depends on what definition we use for a "programming 
language". This is why I am quoting independent sources above.

My personal opinion is that XSLT 2.0 is much closer to a possible prevailing 
conventional understanding of what a "programming language" is. It has 
static typing, compile-time error diagnostic and its own function 
definitions. Different vendours offer byte-code XSLT compilation and we will 
soon see compiled libraries of XSLT functions.

Dimitre Novatchev.


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