Hans-Peter Diettrich wrote:
Mark Morgan Lloyd schrieb:
Over the last few weeks I've hacked together a partial APL
implementation, for use as a way of specifying lists of numbers etc.
when passing commands between computers implementing a large
distributed system. For test purposes I've compiled it on Linux as a
command-line app and am using FPC's keyboard unit to implement a
layout similar to http://www.aplusdev.org/keyboard.html, with Alt as
meta and Esc to go into composition mode (use cursor keys to move
between the glyphs on each key). Internal storage is in widestrings,
external files etc. UTF-8.
I now want to move the parser and evaluator into an LCL-based app,
which will ideally allow at least partial editing of APL-style
expressions rather than reading everything from configuration files.
What is the situation with LCL editing components, Synedit, Cmdline
and so on? Is there a single underlying keyboard component, or at
least a uniform interface?
In short, where do I start? :-)
On Windows you'd write an IME (Input Method Editor), that allows to
compose strings from keystrokes. Don't beat me - I only know that
something like that exists ;-)
The display should not be a problem. AFAIR is the APL charset part of
Unicode, so that you can use SynEdit. Write an APL syntax highlighter
for it, if you like.
No problem at all. My only niggle- and this is a minor one- is that some
of the odder characters I'd have liked to have been able to use (in
particular, German blackletter) are outside the 16-bit Unicode range.
Commandlines? Perhaps using the IME, provided that you can tell the
console to use it ;-)
I'll start digging in and see where I get to, but any suggestions-
particularly relating to Linux- will be welcome.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
--
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