diff options
| -rw-r--r-- | stmhal/readline.c | 40 |
1 files changed, 28 insertions, 12 deletions
diff --git a/stmhal/readline.c b/stmhal/readline.c index 09294789cd..77ad228339 100644 --- a/stmhal/readline.c +++ b/stmhal/readline.c @@ -15,6 +15,8 @@ static const char *readline_hist[READLINE_HIST_SIZE] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}; +enum { ESC_PLAIN = 1, ESC_BRACKET, ESC_BRACKET_DIGIT, ESC_O }; + void readline_init(void) { memset(readline_hist, 0, READLINE_HIST_SIZE * sizeof(const char*)); } @@ -64,7 +66,7 @@ int readline(vstr_t *line, const char *prompt) { return 0; } else if (c == 27) { // escape sequence - escape_seq = 1; + escape_seq = ESC_PLAIN; } else if (c == 8 || c == 127) { // backspace/delete if (cursor_pos > orig_line_len) { @@ -80,15 +82,20 @@ int readline(vstr_t *line, const char *prompt) { redraw_from_cursor = true; redraw_step_forward = 1; } - } else if (escape_seq == 1) { - if (c == '[') { - escape_seq = 2; - } else { - escape_seq = 0; + } else if (escape_seq == ESC_PLAIN) { + switch (c) { + case '[': + escape_seq = ESC_BRACKET; + break; + case 'O': + escape_seq = ESC_O; + break; + default: + escape_seq = 0; } - } else if (escape_seq == 2) { + } else if (escape_seq == ESC_BRACKET) { if ('0' <= c && c <= '9') { - escape_seq = 3; + escape_seq = ESC_BRACKET_DIGIT; escape_seq_buf[0] = c; } else { escape_seq = 0; @@ -132,17 +139,26 @@ int readline(vstr_t *line, const char *prompt) { } } } - } else if (escape_seq == 3) { - escape_seq = 0; + } else if (escape_seq == ESC_BRACKET_DIGIT) { if (c == '~') { if (escape_seq_buf[0] == '1' || escape_seq_buf[0] == '7') { - // home key +home_key: redraw_step_back = cursor_pos - orig_line_len; } else if (escape_seq_buf[0] == '4' || escape_seq_buf[0] == '8') { - // end key +end_key: redraw_step_forward = line->len - cursor_pos; } } + escape_seq = 0; + } else if (escape_seq == ESC_O) { + switch (c) { + case 'H': + goto home_key; + case 'F': + goto end_key; + default: + escape_seq = 0; + } } else { escape_seq = 0; } |