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lua: add vim.register_keystroke_callback (#12536)

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* feat: Add vim.register_keystroke_callback

* fixup: Forgot to remove mention of old option

* fixup: Answer jamessan comments

* fixup: Answer norcalli comments

* fixup: portability

* Update runtime/doc/lua.txt

Co-authored-by: Ashkan Kiani <ashkan.k.kiani@gmail.com>
This commit is contained in:
TJ DeVries
2020-08-14 10:03:17 -04:00
committed by GitHub
parent aa48c1c724
commit 3ccdbc570d
6 changed files with 235 additions and 1 deletions
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13
src/nvim/keymap.c
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@@ -530,13 +530,24 @@ unsigned int trans_special(const char_u **srcp, const size_t src_len,
{
int modifiers = 0;
int key;
unsigned int dlen = 0;
key = find_special_key(srcp, src_len, &modifiers, keycode, false, in_string);
if (key == 0) {
return 0;
}
return special_to_buf(key, modifiers, keycode, dst);
}
/// Put the character sequence for "key" with "modifiers" into "dst" and return
/// the resulting length.
/// When "keycode" is TRUE prefer key code, e.g. K_DEL instead of DEL.
/// The sequence is not NUL terminated.
/// This is how characters in a string are encoded.
unsigned int special_to_buf(int key, int modifiers, bool keycode, char_u *dst)
{
unsigned int dlen = 0;
// Put the appropriate modifier in a string.
if (modifiers != 0) {
dst[dlen++] = K_SPECIAL;