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Posted by smallpond on April 25, 2008, 12:45 pm
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On Apr 18, 7:29 pm, j-st...@verizon.net wrote:
> I've been pulling together a module that acts as a replacement for
> Tk::Text but handles keyboard input similar to Vi (originally to stop
> me from sticking "dd" all over my config files, but it seems like one
> of those things silly enough that others might get some use out of
> it). This is the first time I've tried something like this, so I'd
> appreciate any suggestions or corrections. Is Tk::TextVi a reasonable
> name? Does my interface have any serious flaws? Am I missing and
> features that have to be there? etc.
>
> A few excerpts from the POD is below or the full archive can be found
> here:http://omega0.xepher.net/stuff/Tk-TextVi-0.01.tar.gz
>
> use Tk::TextVi;
> $textvi = $window->TextVi( -option => value, ... );
>
> Tk::TextVi is a Tk::Text widget that replaces InsertKeypress() to
> handle user input similar to vi. All other methods remain the same
> (and most code should be using $text->insert( ... ) rather than
$text->InsertKeypress()). This only implements the text widget and key
>
> press logic; the status bar must be drawn by the application (see
> TextViDemo.pl for an example of this).
>
> Functions in Vi that require interaction with the system (such as
> reading or writing files) are not (currently) handled by this module
> (This is a feature since you probably don't want :quit to do exactly
> that).
>
> OPTIONS
>
> -statuscommand
>
> Callback invoked when the mode or the keys in the pending command
> change. The current mode and pending keys will be passed to this
> function.
>
> -messagecommand
>
> Callback invoked when messages need to be displayed.
>
> -systemcommand
>
> Callback invoked when the parent application needs to take action. If
> you return 'undef' the widget will pretend that command doesn't exist
> and do nothing. Currently, the argument can be:
>
> 'quit' The :quit command has been entered
>
> SUPPORTED COMMANDS
> Normal: a d f ga gg h i j k l m n o p q r t v x y D G O V 0 @ ` $ % /
> Command: :quit :nohlsearch :split :map
Looks good. You could also derive it from TextUndo and change the
undo binding to 'u' to match vi.
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