@ -25,9 +25,11 @@ If you're using DrRacket, you can use the @onscreen{Insert Command Char} button
If you're using a different editor, here's how you type it:
@bold{Mac}: option + shift + V
@(linebreak)@bold{Windows}: holding down alt, type 9674 on the num pad
@(linebreak)@bold{Ubuntu}: ctrl + shift + U, then 25CA
@bold{Mac}: Option + Shift + V
@(linebreak)@bold{Windows}: holding down Alt, type 9674 on the num pad
@(linebreak)@bold{GNU/Linux, BSD}: Type Ctrl + Shift + U, then 25CA, then Enter
For more information on entering arbitrary Unicode glyphs, see @link["https://en.wikipedia.org/wiki/Unicode_input"]{Wikipedia}.
@subsection{``But I don't want to use it ...''}
@ -104,30 +106,10 @@ An alternative, courtesy of @link["http://www.barzilay.org"]{Eli Barzilay}: ``th
@subsubsection{Emacs script}
Courtesy of @link["https://github.com/lerichard95"]{Richard Le}: ``If you're using Emacs, I tried to write a tiny function that inserts the lozenge character. I chose M-\ because that's the key for the lambda character in DrRacket.''
"inserts the lozenge character for use with Pollen"
;; enables function through M-x
(interactive)
;; insert the proper character
(insert (make-char
'mule-unicode-2500-33ff 34 42)))
;; Bind key to M-\ a la DrRacket for lambda
(global-set-key "\M-\\" 'insert-lozenge)}
@link["http://www.barzilay.org"]{Eli Barzilay} offers an even more concise version:
Courtesy of @link["https://github.com/lerichard95"]{Richard Le}: ``I chose M-\ because that's the key for the lambda character in DrRacket.'' (@link["http://www.barzilay.org"]{Eli Barzilay} shortened it.)
@foreign-code{(global-set-key "\M-\\" "◊")}
@subsubsection{Emacs input method}
Courtesy of @link["https://github.com/LemmingAvalanche"]{Kristoffer Haugsbakk}: ``Press @exec{C-\ rfc1345 RET} to choose the @racket[rfc1345] input method and toggle
@ -146,7 +128,7 @@ command: @exec{:digraphs ll 9674} to (in this case) use the digraph @exec{ll}. @
@subsubsection{Compose key}
Courtesy of @link["https://github.com/LemmingAvalanche"]{Kristoffer Haugsbakk}: ``When running Linux under X11, one has access to using the @link["https://en.wikipedia.org/wiki/Compose_key"]{compose key}. But it is unfortunately disabled by default. To use the Menu key as the compose key:
Courtesy of @link["https://github.com/rrthomas"]{Reuben Thomas}: ``When using X11 (common on GNU/Linux and BSD systems), one can use the @link["https://en.wikipedia.org/wiki/Compose_key"]{Compose key}. It is often disabled by default; check your desktop environment's keyboard settings, or at a lower level, to use the Menu key as the Compose key:
See @exec{man xkeyboard-config} for all the ready-made options for the
compose key.
Since the lozenge character does not exist in the default compose-mapping file, you either have to modify the file or copy it into the
home directory and make sure that it is used on login. My compose key
file is at @exec{/usr/share/X11/locale/en_US.UTF-8/Compose}, and I guess that is the default location. So if you want to use the sequence @exec{ll}, for example, then add this line somewhere in the file.''
Since the lozenge character does not exist in the default compose-mapping file, you need to add this to your @filepath{~/.XCompose}:
@foreign-code{
<Multi_key> <l> <l> : "◊"
}
See @exec{man XCompose}, or for more details, including many additional Compose bindings, see @link["https://github.com/rrthomas/pointless-xcompose"]{pointless-xcompose}.''
@section[#:tag "the-two-command-styles"]{The two command styles: Pollen style & Racket style}
Pollen commands can be entered in one of two styles: @italic{Pollen style} or @italic{Racket style}. Both styles start with a lozenge (@litchar["◊"]):