takikawa/drracket-vim-tool

Vim-like editing for DrRacket

DrRacket Vim Tool

This plugin adds vim-like editing to DrRacket.

The plugin is still far from feature-complete, so bug reports and pull requests appreciated!

Requires Racket v6.0 or newer.

To install:

• raco pkg install drracket-vim-tool (via package catalog)

or

• raco pkg install git://github.com/takikawa/drracket-vim-tool (directly via Github)

Now when you load DrRacket, you should see a vim option in the Edit menu. Click that to enable vim mode.

This plugin is released under the GPLv3. Patches welcome.

---

Copyright © 2013-2016 Asumu Takikawa

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

drracket-vim-tool's Issues

Space should be inserted when hitting `J`

When hitting the capital J key, the current line, and next line, get appended together on the same line. However, these two line are supposed to be separated by a space.

So for example, hitting J on line one of the following file:

Line 1 Text
Line 2 Text

Should result in:

Line 1 Text Line 2 Text

However, in vim-tool, the space is missing, giving you:

Line 1 TextLine 2 Text

Lowercase 'a' does not append.

Lowercase a is currently equivalent to lowecase i. It should append to the current cursor position rather then insert there.

Packages installed, although setup reported errors

When I install it in my Racket 6.2:

Error invoking tool #path:/Users/user/Library/Racket/6.2/pkgs/drracket-vim-tool;("tool.rkt")

Users/bialy/Library/Racket/6.2/pkgs/drracket-vim-tool/private/text.rkt:181:15: conjoin: unbound identifier in module
in: conjoin

Search does not loop

When doing a search (via hitting /), I can hit n to go to the next result, however, when I reach the bottom most result in the file, it does not loop around to the first result in the file.

Pasting should move cursor to end of pasted text.

If I past text into vim, the cursor should move to the end of where the paste happened. Currently the cursor stays in the same place after pastes.

r key doesn't work.

In vim, I can move my cursor to a letter, hit r, and then another letter, and the letter under the cursor will be replaced with the letter I just pressed.

This behavior appears to be missing in drracket-vim-tool.

How to install this plugin on DrRacket 5.2.x?

How can I install this plugin on DrRacket 5.2.1?

P.S. I'm a beginner for DrRacket. I also like VIM very much.

Can't leave vim mode.

When I disable vim mode, DrRacket fails to return back to it's previous state, and the cursor continues to highlight a single character.

To replicate:

1. Enter Vim mode (if not already in it).
2. Try to leave vim mode.

You see that the key bindings go back to normal, however the cursor still is a block.

Visual line selection grows monitonically.

If you hit V to use visual line selection, the amount of text that is select only grows and never shrinks.

To replicate:

Hit V to enter visual line mode.
Press j and k to move the cursor up and down.

Each time you hit j or k, one more line should be highlighted.

Error invoking tool! enqueue-front!: Unbound identifier in module?

I'm currently using 5.3 version Drracket, when I tried to install your tool, some error occur like below.

Error invoking tool #<path:C:\Program Files\Racket\vim-tool\drracket-vim-tool>;(
"tool.rkt")

C:\Program Files\Racket\vim-tool\drracket-vim-tool\private\text.rkt:78:9: enqueu
e-front!: unbound identifier in module
in: enqueue-front!
channel-put: contract violation
expected: channel?
given: #f
context...:
C:\Program Files\Racket\collects\racket\private\misc.rkt:168:2: channel-put

How can I get it right?

Not entire buffer is coppied.

This one is a doozy, and I'm not sure what the issue is. So I'll just give you the steps to reproduce it.

1. Start with the following 10 line buffer:

   #lang racket
   
   (define x
     (compile
      #'(begin
          +
          (define + 5)
          +)))
   
   
   

2. Copy lines 3-8 by:
   2a. Starting on line 3, hit V.
   2b. Hit j 5 times.
   2c. Hit y.

3. Go to line 9 and hit p to paste.

Note that the new buffer is:

#lang racket

(define x
  (compile
   #'(begin
       +
       (define + 5)
       +)))
 (define 
  (compile
   #'(begin
       +
       (define + 5)
       +)))

First, note that the second s-expression is magically indented, and note the lack of a second x.

Indentation not correct.

Again, I'm not 100% sure if this is vim mode, or just a bug in drracket.

But when I try to type a for loop, I get incorrect indetation

Given the code:

(for ([i (in-range 10)])
  i)

When I hit tab on the second line, the i gets indented as if for was a regular function.

Vin normal mode stops working

I can start up vim mode in normal mode but once I go to insert I can't go back - It used to work I'm not sure what changed. I am using Dr. Racket 6.1.1

'x' does not modify copy-paste buffer

To reproduce: type in any buffer type 'xp'

expected result: the selected character i moved one char to the right

actual result: the selected character is deleted, and whatever is in your copy/paste buffer gets pasted in

Visual mode navigation is broken.

In visual mode it takes two l to move one position right initially.

Incorrect behavior when pressing space.

Space acts incorrectly under the following two circumstances.

1. If you are on the last character of the last line of the file and press space, the cursor loops around to the first character of that line, rather then doing nothing.
2. If the line is empty and the user presses space, the cursor doesn't do anything, rather than going to the first character of the next line.

Parentheses matching based on paren next to cursor.

In command mode, the s-expression that DrRacket highlights is the one to the immediate left of the cursor, rather then the one over the cursor.

Pressing `n` does not search to next term.

If I search for something using '/term', and hit enter, the first 'term' shows up. However, when I hit 'n' it does not go to the next instance of it.

`r` shortcut will not replace capital letters.

The r command will not replace any capital letters, or any letters that require you to press shift, such as +.

Using 'r' to replace character on end of line causes cursor to got 2 spaces back.

If I hit 'r' at the end of a line to replace a character, after the character is replaced, the cursor goes back two spaces in the line.

(This is not a super big issue, because the correct character does get replaced at least.)

Line select doesn't select full line when going up.

In command mode, V selects line select mode.

However, from there, when I go up, it only selects previous line up to where the text ends, rather then highlighting the entire line.

Highlighting text with mouse and hitting 'x' only deletes one character. (Highlighting with the mouse shold enter visual mode)

If I write out a word, and highlight it with the mouse, and hit 'x', it only deletes the first character of the word, rather than the whole word.

If however, I hit v, and then highlight it with the mouse, and hit 'x', it deletes it.

I suspect what the issue here is that highlighting text doesn't enter visual mode, which it likely should. (Unless maybe it's in command mode?)

Note though that highlighting and hitting 'd' does work find though.

: text stays after escape

If I type :a, and then hit escape, and decide I want to type another colon command again, when I hit :, the text that was previously there appears again.

Only supposed to make space in J when no space at end of line.

When I hit the capital 'J' to combine lines, it currently always adds a space. While this mostly correct, it is only supposed to do this if there is not already a space as the last character of the line.

Incorrect line wrapping

If you hit l on an empty line, it goes to the next line (rather then doing nothing, as it should.

Likewise, if you are on the beginning of a line, and hit j, it goes to the previous line, rather then doing nothing, as it should.

:e does not create a new file.

In vim, I can make (or open) a new file with :e. Vim mode does not seem to do this.

Pasting from visual line yanks doesn't get the lines right

Set up a version exception for Racket v6.2

Paren Matching does not happen

I'm not 100% sure if this is due to vim mode, or a bug in DrRacket. However, whenever I put the cursor over a paren the s-expression I surround does not get highlighted.

Furthermore, extraneous closing parens are no longer marked. Thus making it hard to determine when to stop hitting closing paren.

:q should close the current tab.

Perhaps it makes sense to make :q close the current tab, like it does in vim.

Cannot backspace after :w

If you type :w, and start typing some more text, you cannot backspace further beyond the w.

So, type ':w foo', and keep hitting backspace, and the ':w' will stay there.

'I' should insert at the non-whitespace beginning of line

Possible to implement visual block mode editing?

I noticed that visual block mode editing is not available as part of this plugin. Is that possible to implement?

Vim tool doesn't work in repl.

Inside of the repl, the tool returns to the regular DrRacket keybindings, rather then using the vim ones.

Yank a single character doesn't work.

In vim, you can hit y then space to yank a single character. This doesn't work in vim mode.

Hititng `a` on empty line causes cursor to go to next line.

When I hit a on an empty line in command mode, the cursor goes to the next line, rather then staying on the same line.

dd fails to delete empty first line

If the first line of your file is an empty line, and you hit dd, then the cursor simply goes to the second line without deleting the first line.

N should search backwards

Replace 'r' doesn't work with characters like ':'

Multicommands don't work when in visual line mode.

For example, when in visual mode, if I hit 10j, it ignores the the 10, and just goes down one line.

(If I'm not in visual mode it does work fine though...)

Space in command mode should go to next character.

When the end user presses space in command mode, the cursor should go to the next character. Additionally, when the end user presses space at the end of a line, it should go to the first character on the next line.

'o' splits text if line is wrapped.

If I have line wrapping for DrRacket enabled, and I hit 'o' on a line that is wrapped to multiple lines (not on the last line of the wrap) to create a new line, it splits the line at the end of the line, and puts the text at the end of the line, rather than putting a new line at the end.

Use a DSL to specify vim commands

I'm not satisfied with the way that keyboard commands are currently parsed. I'd like to specify commands declaratively, keeping around a table mapping either sequences of keys or regular expressions of keys to procedures.

Ctrl-C to escape insert mode

In vim pressing ctrl-c leaves insert mode. It is an alternative to pressing the escape key. Could that be implemented here? My muscle memory is committed to Ctrl-c!

Pressing `o` on empty line takes you two lines down.

If you are on an empty line (not at the end of the file) and you press o, it creates a new line, but then places your cursor on the line below the new line, rather than on the new line.

pkg is a unrecognized command

Here I'm using Racket 5.1.1. Running raco pkg install drracket-vim-tool/ as specified on README.md doesn't work. Seems pkg option is removed from raco.

There is a setup option in the usage message of raco which I suspect would be replacement for pkg. But running it returns something more nasty:

collection-path: collection not found: #<path:install> in any of: (#<path:/home/santosh/.racket/5.1.1/collects> #<path:/usr/share/racket/collects>)

 === context ===
cloop
/usr/share/racket/collects/setup/setup-unit.rkt:197:6
/usr/share/racket/collects/racket/private/more-scheme.rkt:390:13: hash-ref!
/usr/share/racket/collects/racket/list.rkt:240:0: filter-map
/usr/share/racket/collects/setup/setup-go.rkt: [running body]
/usr/share/racket/collects/setup/main.rkt: [running body]
/usr/share/racket/collects/raco/main.rkt: [running body]

Numbers should increase amount of spaces moved.

In vim, I can type a number, say 10, and then hit j, and the cursor will go down by ten lines. This behavior appears to be missing in drracket-vim-tool.

dd on empty file causes error.

I get the following error when I run dd on an empty file:

kill in text%: bad argument combination: 0 -1 1
context...:
next
/Users/leif/rsrc/drracket-vim-tool/private/text.rkt:309:6: do-delete method in ...ool/private/text.rkt:51:4
/Users/leif/rsrc/drracket-vim-tool/private/text.rkt:144:17
/Users/leif/rsrc/gui/gui-lib/mred/private/wxme/editor-canvas.rkt:457:2: on-char method in editor-canvas%
/Users/leif/racket/racket/collects/racket/private/more-scheme.rkt:148:2: call-with-break-parameterization
/Users/leif/racket/racket/collects/racket/private/more-scheme.rkt:265:2: call-with-exception-handler
/Users/leif/rsrc/gui/gui-lib/mred/private/wx/cocoa/window.rkt:790:4: dispatch-on-char method in window%
/Users/leif/rsrc/gui/gui-lib/mred/private/wx/common/queue.rkt:454:6

add %, d%, and y%

I tend to use these a lot in racket :)

Have curser replaced with single line in insert mode.

It would be nice (although not strictly required) to have the cursor go into a single line (rather than a block) when we go into insert mode.