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readline: make ctrl-l clear screen & redraw line #6639

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Merged
merged 3 commits into from
Jul 29, 2022
Merged

readline: make ctrl-l clear screen & redraw line #6639

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4c4a707
readline: make ctrl-l clear screen & redraw line
jepler Jul 24, 2022
920c68e
Update shared/readline/readline.c
jepler Jul 26, 2022
975e3e2
Merge remote-tracking branch 'origin/main' into repl-ctrl-l
jepler Jul 29, 2022
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11 changes: 11 additions & 0 deletions shared/readline/readline.c
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Original file line number Diff line number Diff line change
Expand Up @@ -177,6 +177,17 @@ int readline_process_char(int c) {
vstr_cut_tail_bytes(rl.line, rl.line->len - rl.cursor_pos);
// set redraw parameters
redraw_from_cursor = true;
#endif
} else if (c == CHAR_CTRL_L) {
// CTRL-L is clear screen / redraw. This specific sequence is used
// (instead of a slightly more minimal sequence) for compatibility
// with the built-in Terminal class
mp_hal_stdout_tx_str("\x1b[;H\x1b[2J");
mp_hal_stdout_tx_str(rl.prompt);
mp_hal_stdout_tx_strn(rl.line->buf + rl.orig_line_len, rl.cursor_pos - rl.orig_line_len);
// set redraw parameters
redraw_from_cursor = true;
#if MICROPY_REPL_EMACS_KEYS
} else if (c == CHAR_CTRL_N) {
// CTRL-N is go to next line in history
goto down_arrow_key;
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1 change: 1 addition & 0 deletions shared/readline/readline.h
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@
#define CHAR_CTRL_E (5)
#define CHAR_CTRL_F (6)
#define CHAR_CTRL_K (11)
#define CHAR_CTRL_L (12)
#define CHAR_CTRL_N (14)
#define CHAR_CTRL_P (16)
#define CHAR_CTRL_U (21)
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