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Merge pull request #70 from 9999years/recognize-meta-arrows

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Recognize `Meta+Left` and `Meta+Right` for word navigation
This commit is contained in:
Joachim Wiberg 2024-12-07 08:32:55 +01:00 committed by GitHub
commit fb4d7268de
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1 changed files with 31 additions and 4 deletions
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35
src/editline.c
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@ -1034,6 +1034,30 @@ static el_status_t meta(void)
return CSeof;
#ifdef CONFIG_ANSI_ARROWS
/* See: https://en.wikipedia.org/wiki/ANSI_escape_code */
/* Recognize ANSI escapes for `Meta+Left` and `Meta+Right`. */
if (c == '\e') {
switch (tty_get()) {
case '[':
{
switch (tty_get()) {
/* \e\e[C = Meta+Left */
case 'C': return fd_word();
/* \e\e[D = Meta+Right */
case 'D': return bk_word();
default:
break;
}
return el_ring_bell();
}
default:
break;
}
return el_ring_bell();
}
/* Also include VT-100 arrows. */
if (c == '[' || c == 'O') {
switch (tty_get()) {
@ -1043,16 +1067,19 @@ static el_status_t meta(void)
char seq[4] = { 0 };
seq[0] = tty_get();
/* \e[1~ */
if (seq[0] == '~')
return beg_line(); /* Home */
for (c = 1; c < 3; c++)
seq[c] = tty_get();
if (!strncmp(seq, ";5C", 3))
return fd_word(); /* Ctrl+Right */
if (!strncmp(seq, ";5D", 3))
return bk_word(); /* Ctrl+Left */
if (!strncmp(seq, ";5C", 3)
|| !strncmp(seq, ";3C", 3))
return fd_word(); /* \e[1;5C = Ctrl+Right */
if (!strncmp(seq, ";5D", 3)
|| !strncmp(seq, ";3D", 3))
return bk_word(); /* \e[1;5D = Ctrl+Left */
break;
}