Hi all,
Just an update on v11 progress. You may remember this picture of the
Active4D architecture:
runtime
lexer | interpreter | server
lists
SymbolTable | values
Variable4D
framework
arrays | text | date/time | files | 4D environment | logging
I have worked my way up to the next to last layer. The lexer is now
working, which is the piece which scans source text and converts it to
tokens. That was a big (and obviously important) piece, and the key
point at which I support Unicode. One nice new feature is that I scan
the first 1K of an HTML page to see if there is a meta http-equiv tag
which specifies the charset. If so, I use that charset to convert to
Unicode, which I use internally. So I support all charsets now --
utf-8, big5, shift_jis, euc, you name it. You don't have to worry
about the charset of a page not matching the configured platform
charset.
In the case of libraries and config files, if the first line is a
comment and contains "charset=<charset>", I will use that charset when
converting to Unicode.
Now I'm working on the interpreter, which as you can imagine is a huge
amount of work. But so far it is going quite smoothly -- at least as
far as converting to Unicode and getting it to compile. Whether it
works correctly I won't know until I start testing. I still have a few
days of work left until the interpreter is done.
I said I was shooting for the beginning of June for a beta, but I'm a
lousy shot, and I forgot about the lexer, which took almost a week. At
the rate it's going right now I can't see anything until the middle of
June.
Regards,
Aparajita
www.aparajitaworld.com
"If you dare to fail, you are bound to succeed."
- Sri Chinmoy | www.srichinmoy.org
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