[vial-devel] darcs patch: normal mode commands, cc, c<motion>, s, S, -, +, J, X
Mon Oct 23 17:59:36 CEST 2006 laynor@gmail.com * normal mode commands, cc, c<motion>, s, S, -, +, J, X Added some normal mode commands: "cc": change the active line "c<motion>": change the region defined by <motion> "s": subst char, deletes a character like "x" and then goes to insert mode "S": subst line, same as "cc" "-": goto previous line beginning, moves the cursor to previous line at the 1st column "+": goto next line beginning, moves the cursor to the next line at the 1st column "X": deletes previous char (like backspace in insert mode, but it works in normal mode) "J": Joins the active line and the next line, It deserves to be fixed, because the undo is broken (it popups the debugger when the command has no effect (when applied on the last line)) ---- Strange Behaviors (with respect to vim) ---- "c<motion>" doesnt behave the same as vim, just try it in gvim and in vial, it's faster than trying to explain it here. In particular, "cj" doesnt open a new line after deleting, and cw eats the backspace that separates words. ---- Broken behavior ---- join-lines-command ("J") breaks the undo. To reproduce this behavior, just go to the last line of a file and press J, and then undo.
On 23/10/06, laynor@gmail.com <laynor@gmail.com> wrote:
Mon Oct 23 17:59:36 CEST 2006 laynor@gmail.com * normal mode commands, cc, c<motion>, s, S, -, +, J, X Added some normal mode commands: "cc": change the active line "c<motion>": change the region defined by <motion> "s": subst char, deletes a character like "x" and then goes to insert mode "S": subst line, same as "cc" "-": goto previous line beginning, moves the cursor to previous line at the 1st column "+": goto next line beginning, moves the cursor to the next line at the 1st column "X": deletes previous char (like backspace in insert mode, but it works in normal mode) "J": Joins the active line and the next line, It deserves to be fixed, because the undo is broken (it popups the debugger when the command has no effect (when applied on the last line))
---- Strange Behaviors (with respect to vim) ---- "c<motion>" doesnt behave the same as vim, just try it in gvim and in vial, it's faster than trying to explain it here. In particular, "cj" doesnt open a new line after deleting, and cw eats the backspace that separates words. ---- Broken behavior ---- join-lines-command ("J") breaks the undo. To reproduce this behavior, just go to the last line of a file and press J, and then undo.
Nice! I'll look at it tonight after work and roll it in. I think I'll start a couple of new files: vim-differences.txt - a list of differences to Vim known-bugs.txt - known bugs in Vial Thanks a lot for the patch! Cheers Brad
I've just had a quick read of the patch, here are some comments: delete-previous-char: if you look at the primitive DELETE-CHARS function, there is an option to delete to the left or the right of the cursor. It looks like we do a lot of moving the cursor by one line, lets make a new function to advance/retreat by a line and put it in cursor.lisp. See this Emacs reference page for ideas for function names http://www.cse.huji.ac.il/support/emacs/elisp-help/elisp-manref/elisp_30.htm... I don't like reusing other commands inside commands, ie in change-region. What we should do is create a DELETE-REGION function, and have command-d-motion and change-region call that. Same for subst-char, I'd rather use the primitive (DELETE-CHARS), we may want to change/remove COMMAND-X later. Really good, probably I'm going to have to become more disiplined in how I code now though :) I can easily see myself writing exactly what you did :) If you want to send another patch (don't bother unrecording, just add to it) feel free, otherwise I'll make the changes when I roll it in. Cheers Brad On 23/10/06, Brad Beveridge <brad.beveridge@gmail.com> wrote:
On 23/10/06, laynor@gmail.com <laynor@gmail.com> wrote:
Mon Oct 23 17:59:36 CEST 2006 laynor@gmail.com * normal mode commands, cc, c<motion>, s, S, -, +, J, X Added some normal mode commands: "cc": change the active line "c<motion>": change the region defined by <motion> "s": subst char, deletes a character like "x" and then goes to insert mode "S": subst line, same as "cc" "-": goto previous line beginning, moves the cursor to previous line at the 1st column "+": goto next line beginning, moves the cursor to the next line at the 1st column "X": deletes previous char (like backspace in insert mode, but it works in normal mode) "J": Joins the active line and the next line, It deserves to be fixed, because the undo is broken (it popups the debugger when the command has no effect (when applied on the last line))
---- Strange Behaviors (with respect to vim) ---- "c<motion>" doesnt behave the same as vim, just try it in gvim and in vial, it's faster than trying to explain it here. In particular, "cj" doesnt open a new line after deleting, and cw eats the backspace that separates words. ---- Broken behavior ---- join-lines-command ("J") breaks the undo. To reproduce this behavior, just go to the last line of a file and press J, and then undo.
Nice! I'll look at it tonight after work and roll it in. I think I'll start a couple of new files: vim-differences.txt - a list of differences to Vim known-bugs.txt - known bugs in Vial
Thanks a lot for the patch!
Cheers Brad
On 10/23/06, Brad Beveridge <brad.beveridge@gmail.com> wrote:
I've just had a quick read of the patch, here are some comments: delete-previous-char: if you look at the primitive DELETE-CHARS function, there is an option to delete to the left or the right of the cursor.
It looks like we do a lot of moving the cursor by one line, lets make a new function to advance/retreat by a line and put it in cursor.lisp. See this Emacs reference page for ideas for function names
http://www.cse.huji.ac.il/support/emacs/elisp-help/elisp-manref/elisp_30.htm...
I don't like reusing other commands inside commands, ie in change-region. What we should do is create a DELETE-REGION function, and have command-d-motion and change-region call that. Same for subst-char, I'd rather use the primitive (DELETE-CHARS), we may want to change/remove COMMAND-X later.
Really good, probably I'm going to have to become more disiplined in how I code now though :) I can easily see myself writing exactly what you did :)
If you want to send another patch (don't bother unrecording, just add to it) feel free, otherwise I'll make the changes when I roll it in.
Cheers Brad
On 23/10/06, laynor@gmail.com < laynor@gmail.com> wrote:
Mon Oct 23 17:59:36 CEST 2006 laynor@gmail.com * normal mode commands, cc, c<motion>, s, S, -, +, J, X Added some normal mode commands: "cc": change the active line "c<motion>": change the region defined by <motion> "s": subst char, deletes a character like "x" and then goes to insert mode "S": subst line, same as "cc" "-": goto previous line beginning, moves the cursor to previous line at the 1st column "+": goto next line beginning, moves the cursor to the next line at
On 23/10/06, Brad Beveridge <brad.beveridge@gmail.com> wrote: the 1st column
"X": deletes previous char (like backspace in insert mode, but it works in normal mode) "J": Joins the active line and the next line, It deserves to be fixed, because the undo is broken (it popups the debugger when the command has no effect (when applied on the last line))
---- Strange Behaviors (with respect to vim) ---- "c<motion>" doesnt behave the same as vim, just try it in gvim and in vial, it's faster than trying to explain it here. In particular, "cj" doesnt open a new line after deleting, and cw eats the backspace that separates words. ---- Broken behavior ---- join-lines-command ("J") breaks the undo. To reproduce this behavior, just go to the last line of a file and press J, and then undo.
Nice! I'll look at it tonight after work and roll it in. I think I'll start a couple of new files: vim-differences.txt - a list of differences to Vim known-bugs.txt - known bugs in Vial
Thanks a lot for the patch!
Cheers Brad
_______________________________________________ vial-devel mailing list vial-devel@common-lisp.net http://common-lisp.net/cgi-bin/mailman/listinfo/vial-devel
I think that reusing commands inside other commands is ugly too, I'm correcting some of those ugly things now. I did it to avoid code repetition though. I also noticed that there are some patterns in the commands code that we could try to avoid, i.e: (defun command-function (args) body) (define-pattern ...#' command-function ...) This one could be better expressed with a macro that outputs those two forms, maybe something like (define-command command-function (args) (body) (<arguments for define-pattern, without the #'command-function)) also we could then specialize this macro, to avoid the pattern (defun command-function2 (args) (active-register-needs-updating) body) reducing our lines of code even more, and getting rid of some patterns. I also thought of decoupling a little the commands from the actual bindings, defining a bunch of variables that contain the actual bindings, like *join-lines-command-binding*, and bound them using a macro like (define-bindings (*join-lines-command-binding* "J") (*change-single-line-from-active-binding* "cc") .....) This would make changing actual bindings clearer I think. Also I think that surely there's a better way to do something like this than "defining a bunch of variables", but I'm a noob and now i thought of it as a simple method =) We also have a bunch of commands that go into insert-mode, thus creating the pattern (defun foo (args) body (enter-insert-mode)) so.... what about erasing this pattern too? Let me know what do you think! __ Alessandro
I think that reusing commands inside other commands is ugly too, I'm correcting some of those ugly things now. I did it to avoid code repetition though. I also noticed that there are some patterns in the commands code that we could try to avoid, i.e: (defun command-function (args) body) (define-pattern ...#' command-function ...) This one could be better expressed with a macro that outputs those two forms, maybe something like
(define-command command-function (args) (body) (<arguments for define-pattern, without the #'command-function)) Once upon a time I actually did have code like that, but a lot of what the commands do are generally useful primitive functions, such as moving the cursor forward. In that case the current method is probably better because the function to call already exists. For now I'd like to keep it the same. Infact, one of the things I thought about doing was splitting key-normal, so that the (DEFINE-PATTERN ...) forms are in a file by themselves, to make it less cluttered.
also we could then specialize this macro, to avoid the pattern (defun command-function2 (args) (active-register-needs-updating) body) I can't remember exactly what active-register-needs-updating does, so that is a sign that function needs work, possible it ought to become a macro like (with-deletes-saved-to-active-register ... body ....)
(define-bindings (*join-lines-command-binding* "J") (*change-single-line-from-active-binding* "cc") .....) This would make changing actual bindings clearer I think. Also I think that surely there's a better way to do something like this than "defining a bunch of variables", but I'm a noob and now i thought of it as a simple method =) Hmm, I don't understand what you mean exactly here, but just looking at the code I don't really like the way it sits on the page :) I'm not sure why we need the global vars.
We also have a bunch of commands that go into insert-mode, thus creating the pattern (defun foo (args) body (enter-insert-mode)) so.... what about erasing this pattern too? This could be worth changing, any ideas about what the new pattern should look like?
BTW, it's nice to have somebody to chat with about Vial - please don't think that I am being too harsh about your ideas. I am very open to doing things different ways, but I might need convincing sometimes :) Cheers Brad
(define-bindings (*join-lines-command-binding* "J") (*change-single-line-from-active-binding* "cc") .....) This would make changing actual bindings clearer I think. Also I think that surely there's a better way to do something like this than "defining a bunch of variables", but I'm a noob and now i thought of it as a simple method =) Hmm, I don't understand what you mean exactly here, but just looking at the code I don't really like the way it sits on the page :) I'm not sure why we need the global vars.
We also have a bunch of commands that go into insert-mode, thus creating the pattern (defun foo (args) body (enter-insert-mode)) so.... what about erasing this pattern too? This could be worth changing, any ideas about what the new pattern should look like? I thought of a macro that could look like (define-insert-command foo(args) body)
The thing I thought is about making it easier for the (end) user to change some bindings. I guess there's a better way to do it than global variables, maybe putting the bindings in a hash table or something like that... Doing so the end user can modify the bindings (or add new ones) just putting (*<name--of-the-command>-bindings* "hk") inside the define bindings form instead of having to deal with define-pattern forms (that are also repeated thru all the code, so making a macro is not a bad thing I think). that expands to the pattern I highlighted above :)
BTW, it's nice to have somebody to chat with about Vial - please don't think that I am being too harsh about your ideas. I am very open to doing things different ways, but I might need convincing sometimes :)
Don't worry, I know how it feels when someone wants to change things :) I'll try to explain my ideas better on irc!
Cheers Brad _______________________________________________ vial-devel mailing list vial-devel@common-lisp.net http://common-lisp.net/cgi-bin/mailman/listinfo/vial-devel
Ciao, __ Alessandro
On 23/10/06, Alessandro Piras <laynor@gmail.com> wrote:
(define-bindings (*join-lines-command-binding* "J") (*change-single-line-from-active-binding* "cc") .....) This would make changing actual bindings clearer I think. Also I think that surely there's a better way to do something like this than "defining a bunch of variables", but I'm a noob and now i thought of it as a simple method =) Hmm, I don't understand what you mean exactly here, but just looking at the code I don't really like the way it sits on the page :) I'm not sure why we need the global vars.
The thing I thought is about making it easier for the (end) user to change some bindings. I guess there's a better way to do it than global variables, maybe putting the bindings in a hash table or something like that... Doing so the end user can modify the bindings (or add new ones) just putting (*<name--of-the-command>-bindings* "hk") inside the define bindings form instead of having to deal with define-pattern forms (that are also repeated thru all the code, so making a macro is not a bad thing I think). Ah, I see what you mean. I think one of the strongest points of Vim is that there is a fairly standard key map that people generally don't deviate from. For example, I type Dvorak and have only changed the home row movement keys jkhl to htjk. h and t for up and down, j and k for left and right. Vial currently supports this kind of remapping (the same as Vim's :map command), so that you can map any single keypress to any other single keypress, or in fact a single keypress to multiple keypresses, ie "D" -> "dd" perhaps. I think this level of remapping is probably sufficient. The DEFINE-PATTERN macro is not really meant to be used by end users, only for adding the default mappings. Does that make sense?
Cheers Brad
On 10/23/06, Brad Beveridge <brad.beveridge@gmail.com> wrote:
On 23/10/06, Alessandro Piras <laynor@gmail.com> wrote:
(define-bindings (*join-lines-command-binding* "J") (*change-single-line-from-active-binding* "cc") .....) This would make changing actual bindings clearer I think. Also I think that surely there's a better way to do something like this than "defining a bunch of variables", but I'm a noob and now i thought of it as a simple method =) Hmm, I don't understand what you mean exactly here, but just looking at the code I don't really like the way it sits on the page :) I'm not sure why we need the global vars.
The thing I thought is about making it easier for the (end) user to change some bindings. I guess there's a better way to do it than global variables, maybe putting the bindings in a hash table or something like that... Doing so the end user can modify the bindings (or add new ones) just putting (*<name--of-the-command>-bindings* "hk") inside the define bindings form instead of having to deal with define-pattern forms (that are also repeated thru all the code, so making a macro is not a bad thing I think). Ah, I see what you mean. I think one of the strongest points of Vim is that there is a fairly standard key map that people generally don't deviate from. For example, I type Dvorak and have only changed the home row movement keys jkhl to htjk. h and t for up and down, j and k for left and right. Vial currently supports this kind of remapping (the same as Vim's :map command), so that you can map any single keypress to any other single keypress, or in fact a single keypress to multiple keypresses, ie "D" -> "dd" perhaps. I think this level of remapping is probably sufficient. The DEFINE-PATTERN macro is not really meant to be used by end users, only for adding the default mappings. Does that make sense?
Cheers Brad _______________________________________________ vial-devel mailing list vial-devel@common-lisp.net http://common-lisp.net/cgi-bin/mailman/listinfo/vial-devel
Yeah, I forgot that way to remap, cause i saw it only once when commenting out your dvorak mappings =) I also guess that the kind of remapping vial offers is enough, so forget the proposal :) I have just a question about it that I'll make in irc. __ Alessandro
participants (3)
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laynor＠gmail.com