diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2022-12-11 23:07:16 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2022-12-11 23:27:26 +0100 |
| commit | 6a643459ea45594d91984d0ad98e8d2d5fa7ca5a (patch) | |
| tree | 829bf5d18415558d60949760b4133eed2ae7acda /ddb | |
| parent | 9de9e186233d0b983231bf2a474c2cb1025ea283 (diff) | |
db: Add support for CSI-based arrows
Diffstat (limited to 'ddb')
| -rw-r--r-- | ddb/db_input.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/ddb/db_input.c b/ddb/db_input.c index 6b6db764..b70299d3 100644 --- a/ddb/db_input.c +++ b/ddb/db_input.c @@ -139,8 +139,14 @@ db_delete_line(void) boolean_t db_inputchar(int c) { + static int escaped, csi; + int was_escaped = escaped, was_csi = csi; + escaped = 0; + csi = 0; + switch (c) { case CTRL('b'): + left: /* back up one character */ if (db_lc > db_lbuf_start) { cnputc(BACKUP); @@ -148,6 +154,7 @@ db_inputchar(int c) } break; case CTRL('f'): + right: /* forward one character */ if (db_lc < db_le) { cnputc(*db_lc); @@ -202,6 +209,7 @@ db_inputchar(int c) break; #if DB_HISTORY_SIZE != 0 case CTRL('p'): + up: DEC_DB_CURR(); while (db_history_curr != db_history_last) { DEC_DB_CURR(); @@ -227,6 +235,7 @@ db_inputchar(int c) db_putstring(db_lbuf_start, db_le - db_lbuf_start); break; case CTRL('n'): + down: while (db_history_curr != db_history_last) { if (*db_history_curr == '\0') break; @@ -306,7 +315,38 @@ db_inputchar(int c) #endif /* DB_HISTORY_SIZE */ *db_le++ = c; return (TRUE); + case '\033': + escaped = 1; + break; + case '[': + if (was_escaped) + csi = 1; + else + goto plain; + break; + case 'A': + if (was_csi) + goto up; + else + goto plain; + case 'B': + if (was_csi) + goto down; + else + goto plain; + case 'C': + if (was_csi) + goto right; + else + goto plain; + case 'D': + if (was_csi) + goto left; + else + goto plain; + default: + plain: if (db_le == db_lbuf_end) { cnputc('\007'); } |