[Jprogramming] APL font for emacs

[Ian Clark]

David is right. Adrian Smith's APL385, based on Comic Sans, used to be the
reference standard for cross-platform APLs using TrueType fonts. Most
up-to-date monospaced fonts should have Lamp: '⍝' --e.g. AndaleMono (what I
use on my iMac), Courier, FreeMono or Monaco.

If you're running an antique computer, like I am, be warned that fonts with
the same names on Win and OS X often used to have different subsets of the
utf-8 range, but I'm talking 5-10 years ago now. Worth downloading the
latest version of these fonts, since I found once that a long series of OS
X upgrades had not replaced my existing fonts -- at least, not all of them.

All the usual APL chars (I say "usual" because historically any overstruck
is a valid APL character) are in: U+2300-23FF (Miscellaneous technical).
Lamp is U+235d (9053).

What I'd do to verify the APL display capability of any computer platform
is to go to http://code.jsoftware.com/wiki/User:Ian_Clark/APLChars
…which shows the character table (⎕AV) of Dyalog APL version 12 in utf-8
plus a screen snapshot of what it ought to look like.
It's then a question of finding which font your browser is using, or
varying the font until the page shows true.


On Tue, May 23, 2017 at 10:30 AM, David Mitchell <davidmitchell at att.net>
wrote:

> I do not know if it works with emacs, but http://www.dyalog.com/apl-font
> -keyboard.htm apl385 font has lamp:
>
> ⍝
>
>
>
> On 5/23/2017 05:06, Devon McCormick wrote:
>
>> Not a J question but someone here might know what font I can use to get
>> all
>> the APL characters in emacs (on Windows).
>> I can get almost all of them with many fonts, except for the "lamp"
>> (comment) symbol.
>>
>> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>