Improve the built-in editor (input mode) #4

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p · 2020-10-21T20:37:08+02:00

p commented

2020-10-21 20:37:08 +02:00

Make at least the minimal Emacs/Readline bindings work: C-a C-e C-b C-f Left Right Home End C-u C-k Delete

This requires us to keep the cursor's position. Beware that because of combining marks, iteration needs to be done in terms of graphemes, which is best approximated by considering zero-width wide characters a single unit with the first preceding non-zero-width wide character.

C-v should also be supported ("Add the next character that you type to the line verbatim."). The simplest way to do it is by setting a toggle and skipping g_input_actions.find(), forcing ACTION_NONE. We should also invoke raw() and end it with halfdelay(1) in order to catch C-c, C-q.

There is no increased need to handle the case of overflowing input lines. Keep it exactly as broken as it is now.

Make at least the minimal Emacs/Readline bindings work: C-a C-e C-b C-f Left Right Home End C-u C-k Delete This requires us to keep the cursor's position. Beware that because of combining marks, iteration needs to be done in terms of graphemes, which is best approximated by considering zero-width wide characters a single unit with the first preceding non-zero-width wide character. C-v should also be supported ("*Add the next character that you type to the line verbatim.*"). The simplest way to do it is by setting a toggle and skipping `g_input_actions.find()`, forcing `ACTION_NONE`. We should also invoke `raw()` and end it with `halfdelay(1)` in order to catch C-c, C-q. There is no increased need to handle the case of overflowing input lines. Keep it exactly as broken as it is now.

p self-assigned this 2020-10-21 20:37:08 +02:00

p changed title from ~~Improve the built-in editor (input mode)~~ to Improve the built-in editor (input mode) #easy

2020-10-21 21:15:59 +02:00

p referenced this issue from a commit

2020-10-22 00:09:10 +02:00

Track cursor position in the editor Updates #4

p referenced this issue from a commit

2020-10-22 00:09:10 +02:00

Make backspace erase combining characters They might not be even printed correctly, though. Updates #4

p referenced this issue from a commit

2020-10-22 00:09:10 +02:00

Implement C-a C-e C-b C-f in the editor Updates #4