On Fri, Nov 29, 2013 at 5:19 PM, Robby Findler <ro...@eecs.northwestern.edu>wrote:
> On Fri, Nov 29, 2013 at 3:10 PM, <j...@math.brown.edu> wrote: > >> On Thu, Nov 28, 2013 at 10:33 PM, Robby Findler < >> ro...@eecs.northwestern.edu> wrote: >> >>> Oh, I should have done that long ago. I've pushed something that lets >>> you use alt as meta. >>> >> >> Just found it at https://github.com/plt/racket/commit/d95a6b02. Thank >> you for adding this! And so quickly, to boot! >> >> Can't wait to be able to use it. Extrapolating based on the release dates >> of the last few versions, the next release should be out soon, I take it? >> Is there a way to get Alt as Meta working in the meantime? >> >> > You can build racket (it isn't too hard once you have the dev stuff > installed), or you can get the latest snapshot which, I believe, has that > commit: http://plt.eecs.northwestern.edu/snapshots/ > Just grabbed this<http://plt.eecs.northwestern.edu/snapshots/current/installers/racket-test-6.0.0.1-x86_64-macosx.dmg> and sure enough, found "Treat alt key as meta" under Preferences > Editing > General. Excellent! Trying it out and so far so good, except for Alt-p/n. Rather than going backward/forward in command history like Esc-p/n, they're still getting the standard OS X behavior (printing "π" / attaching ~ to next character, respectively). I've already figured out how to add a user-defined keybindings file to map >> Ctrl+w to "backward-kill-word", as in the shell. In case it helps anyone >> else: >> >> #lang s-exp framework/keybinding-lang >> >> >> (define (rebind key command) >> >> (keybinding >> >> key >> >> (λ (ed evt) >> >> (send (send ed get-keymap) call-function command ed evt #t)))) >> >> >> (rebind "control:w" "backward-kill-word") >> >> >> >> Similarly I'd like to map Ctrl-u to "delete-to-beginning-of-line", but it >> looks like that function doesn't come out of the box, and I haven't yet >> tried to figure out how to add it. >> >> > You want look at the methods of text% (of which ed is one), specifically > for the position-paragraph and related methods. > Thanks Robby, I'll take a look for this. > One last behavior I miss from the shell (as well as other GUI IDEs with >> REPLs, such as Python's IDLE) is the default mapping of Ctrl-p/Ctrl-n to >> "previous/next command from history" rather than "move the cursor up/down", >> which I need much less often. Tried to figure out how to change this, but >> didn't see where the Meta-p/Meta-n mappings were defined >> in collects/framework/private/keymap.rkt in the first place. >> >> > The names of various existing key bindings are listed in the > Edit|Keybindings|Show Active Keybindings... menu item. > Thanks for the tip! Looking there I found esc;p bound to put-previous-sexp, so I added (rebind "c:p" "put-previous-sexp") to my keybindings file and it worked like a charm. Thanks, Robby! Any advice on these would be much appreciated. And I'll start a new >> thread if this is getting too off-topic for this one. >> >> >>> The docs are wrong, tho, because even with the release version you >>> should be able to use command as meta (not that you really want to...) >>> >> >> (I didn't see a Command as Meta option in preferences, but you're right >> that I don't want that anyway.) >> >> > Which OS are you using? > Oops, "Treat command key as meta" was there all along, I just missed it. Sorry about that. Relatedly, if I ever start hacking on the DrRacket source, I'll look out for a chance to add search to the Preferences dialog (à la Eclipse, System Preferences, etc.). Thanks again for your help, Robby, and happy Thanksgiving weekend to >> everyone celebrating. >> >> > Happy Thanksgiving to you too. > Thanks, and thanks again for all your help. > Robby > > >> Robby >>> >>> >>> On Wed, Nov 27, 2013 at 9:43 PM, <j...@math.brown.edu> wrote: >>> >>>> Hey Racket Users, >>>> >>>> Just trying Racket for the first time, and very excited to finally be >>>> learning it! I've been wanting to for years. >>>> >>>> Just had my first encounter with DrRacket, and am trying to get >>>> comfortable with keyboard input. According to >>>> http://docs.racket-lang.org/drracket/Keyboard_Shortcuts.html, >>>> >>>> On Windows and Mac OS X, Meta is only available through the Escape key. >>>>> >>>> >>>> Sorry to see it's not possible to bind the Alt/Option key to Meta, as >>>> it is with e.g. Terminal.app, as it would be a huge usability win; the >>>> Escape key on most keyboards is one of the hardest to reach, aggravating >>>> RSI the world over. In >>>> http://lists.racket-lang.org/users/archive/2010-August/041085.html, a >>>> post from 2010, Matthew Flatt alludes to adding support for Option as Meta >>>> after a soon-coming GUI rewrite, but I found no further mention of it here, >>>> on GitHub (https://github.com/plt/racket/search?q=meta&type=issues), >>>> or elsewhere. >>>> >>>> Just thought I'd inquire again about the possibility. On the off chance >>>> it's a matter of submitting a newcomer-friendly patch, I'd be delighted to >>>> give it a shot. >>>> >>>> Thanks for reading, and thanks for the great work on Racket. >>>> >>>> ____________________ >>>> Racket Users list: >>>> http://lists.racket-lang.org/users >>>> >>>> >>> >> >
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