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stmhal: Add backspace key to readline (along with delete key).

This commit is contained in:
Damien George 2014-04-02 14:28:58 +01:00
parent 10e21b9770
commit 69dee59ce4
1 changed files with 3 additions and 2 deletions
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5
stmhal/readline.c
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@ -58,8 +58,8 @@ int readline(vstr_t *line, const char *prompt) {
} else if (c == 27) { } else if (c == 27) {
// escape sequence // escape sequence
escape_seq = 1; escape_seq = 1;
} else if (c == 127) { } else if (c == 8 || c == 127) {
// backspace // backspace/delete
if (cursor_pos > orig_line_len) { if (cursor_pos > orig_line_len) {
vstr_cut_out_bytes(line, cursor_pos - 1, 1); vstr_cut_out_bytes(line, cursor_pos - 1, 1);
// set redraw parameters // set redraw parameters
@ -125,6 +125,7 @@ int readline(vstr_t *line, const char *prompt) {
} }
// redraw command prompt, efficiently // redraw command prompt, efficiently
// TODO we can probably use some more sophisticated VT100 commands here
if (redraw_step_back > 0) { if (redraw_step_back > 0) {
for (int i = 0; i < redraw_step_back; i++) { for (int i = 0; i < redraw_step_back; i++) {
stdout_tx_str("\b"); stdout_tx_str("\b");