personal keybindings

[rjkroege]

I need to add back the keybindings that I've hacked into my own fork of p9p acme in a way that multiple different bindings can exist in the same binary.

[paul-lalonde]

How can we do this without icky config files? I can see an easy enough scheme where the fragments in the Type switch are selected through a map, but I can't figure out a nice way to initialize that map without becoming Emacs.

[rjkroege]

Serialize / de-serialize the map to the dump file? Then edit externally.

[paul-lalonde]

A Bind command could be interesting. Bind to an external command?

[rjkroege]

Can you expand on what the Bind command would do?

[paul-lalonde]

The simple version takes all the key switch cases in text.go, drops them into named closures/funcs (because you have too much shared state in there?), and indexes them based on a bind table of keystrokes. Bind ties the name of func to the key.
Bind to external could throw the selected keystroke to an external app (instead of just typed text as the current event file does) for resolution. Perhaps a "keystrokes" file.

[rjkroege]

Conceivably over-engineered proposal:

• map is writable from filesystem (so no need to define how to enter keys in the UI)
• bindings in filesystem directory
• write to the bindings a sequence of or more *key*' '*command*'\n'` to bind key to command
• write key \n to remove the binding for key
• per above: key is the index of a map of command functions
• an external binding simply wraps the specified string
• a key without binding inserts itself. In particular: instead of switch statement: lookup key in map. Run if command if present else insert key.
• space and \n can't be bound to keys other than inserting themselves.
• Read bindings shows them (key ' ' command)
• bindings would be persisted in the dump file

Example

Middle-clicking something like this:

echo 👍 eraseWord | 9p write acme/bindings

would make the unicode delete a word. And

; 9p read acme/bindings
PJW eraseWord
PJW eraseChar
PJW tickUp
. . .

I suppose that the map could be per-Window.

[paul-lalonde]

I would not like to see the map be per-window unless we found a compelling use case.
I could live with that proposal.

[camsn0w]

An additional thought I had is having the option to bind keyboard shortcuts to tagbar applications, for example a user could bind ctrl+shift+f to a find and replace app they wrote.