[racket] scratching an itch: how do I customize which words get colored as keywords in DrRacket?

From: Robby Findler (robby at eecs.northwestern.edu)
Date: Sat Jun 8 15:31:14 EDT 2013

It is the ones that it has special indentation rules for. Not super heplful
to you here, I know.

The specific conditional that you might be looking (if you wish to do
things differently) for is in framework/private/racket.rkt around line 1306
in the body of racket-lexer-wrapper. The first case of that 'cond' is the
keyword case and that shows how it wires into the preferences. So if you
wanted to add a new preference pane or something, that's where you'd look
at its values.


On Sat, Jun 8, 2013 at 2:05 PM, Christopher <ultimatemacfanatic at gmail.com>wrote:

> Greetings all!   First post here.
> Just finished my first significant project in Racket: writing parser in
> Racket for my new Python/Racket fusion programming language (roughly 2000
> lines of Racket for the parser).  The next phase is the runtime classes,
> which seems less straightforward--wish me luck!
> Also happy to report figuring out on my own how to get Command-L
> reassigned to goto-line instead of Choose Language in DrRacket, using my
> own home-brewed keybindings file, as I frequently switch between other
> editors that use this key binding.  (However, DrRacket not only fails when
> instructed through the menu interface to detach this keybindings file, but
> does so reporting an internal error, but that's another story and may or
> may not be due to somebody else's bug.)
> Now that I've introduced myself, let me get to the reason I'm writing.
> In DrRacket I have gone to Preferences menu item->Colors tab->Racket
> sub-tab and changed the color associated with "Keyword" to orange, to make
> it a different color from the blue color for "Symbol".
> I have noticed that there are some symbols colored as being in the
> "Keyword" category that I wish were not, and there are others not so
> colored that I wish would be thus.  For instance, I'm considered having
> "match", "class", and "make-object" be colored as "Symbol" instead of
> "Keyword"; on the other hand, I am dumbfounded that, while "cond", "while",
> and "unless" are colored as keywords, "if" is colored as an ordinary
> symbol; this seems like an incontestable error of omission (surely an
> accident).
> I have grepped through all the source files in DrRacket's "collects"
> folder, but have not been able to isolate the place where DrRacket's list
> of keywords are stored.
> Does anyone know how to tweak the list of symbols that DrRacket colors as
> keywords?  I would consider using a different, more easily customizable
> editor like my beloved TextMate 2, but neither it nor any of the other
> editors I'm familiar with has DrRacket's intelligent indentation assistance
> that conforms to Racket conventions for indenting--this is a feature
> without which I would probably lose my mind, given my compulsion for proper
> and consistent indentation.
> Any help would be appreciated!
> Thank you,
> Christopher
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