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Code Issues 1 Releases Wiki Activity

shell: Prevent buggy moving zero column behavior

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According to https://unix.stackexchange.com/a/559331,
moving zero column is implemented inconsistently between
different terminal emulators.

In order to fix this inconsistency,
we avoid using this escape sequence entirely.

Signed-off-by: Tw <tw19881113@gmail.com>
Change-Id: I73d4252f8472c769f0cf98b6bbdf2b3d6a6a6964
This commit is contained in:
Tw
2025-12-03 19:11:10 +08:00
parent c2cbfa4d5d
commit 6e883b8972
1 changed files with 5 additions and 3 deletions
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6
src/mainclient/shell.c
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@@ -379,10 +379,12 @@ static void refresh(void) {
janet_buffer_push_cstring(&b, gbl_prompt);
janet_buffer_push_bytes(&b, (uint8_t *) _buf, _len);
/* Erase to right */
janet_buffer_push_cstring(&b, "\x1b[0K");
janet_buffer_push_cstring(&b, "\x1b[0K\r");
/* Move cursor to original position. */
snprintf(seq, 64, "\r\x1b[%dC", (int)(_pos + gbl_plen));
if (_pos + gbl_plen) {
snprintf(seq, 64, "\x1b[%dC", (int)(_pos + gbl_plen));
janet_buffer_push_cstring(&b, seq);
}
if (write_console((char *) b.data, b.count) == -1) {
exit(1);
}