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Fix problems with editing of commands that extend to multiple lines.

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This commit is contained in:
Stephen Heumann 2014-12-13 22:21:38 -06:00
parent 038f37f9eb
commit 4f7d95d896
1 changed files with 5 additions and 9 deletions
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14
libbb/lineedit.c
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@ -135,8 +135,6 @@ char *right_cmd = ESC"[C";
char *clear_to_end_of_screen_cmd = ESC"[J";
#endif
bool automargin; /* Does terminal have automatic margins? */
char termcap_string_buf[TERMCAP_BUFSIZ];
/* Terminal escape sequences to process in input (used by read_key) */
@ -269,8 +267,6 @@ void init_termcap(void)
return;
tgetent(termcap_buffer, term);
automargin = tgetflag("am");
result = tgetstr("up", &string_buf);
if (result != NULL)
up_cmd = result;
@ -474,10 +470,8 @@ static void put_cur_glyph_and_inc_cursor(void)
* have automargin (IOW: it is moving cursor to next line
* by itself (which is wrong for VT-10x terminals)),
* this will break things: there will be one extra empty line */
if (!automargin) {
bb_putchar_binary('\r');
bb_putchar_binary('\n');
}
bb_putchar_binary('\r');
bb_putchar_binary('\n');
#else
/* VT-10x terminals don't wrap cursor to next line when last char
* on the line is printed - cursor stays "over" this char.
@ -592,6 +586,7 @@ static void input_backward(unsigned num)
*/
unsigned sv_cursor;
/* go to 1st column; go up to first line */
bb_putchar_binary('\r');
go_up(cmdedit_y);
cmdedit_y = 0;
sv_cursor = cursor;
@ -609,13 +604,14 @@ static void input_backward(unsigned num)
cmdedit_x = (width * cmdedit_y - num) % width;
cmdedit_y -= lines_up;
/* go to 1st column; go up */
bb_putchar_binary('\r');
go_up(lines_up);
/* go to correct column.
* xterm, konsole, Linux VT interpret 0 as 1 below! wow.
* need to *make sure* we skip it if cmdedit_x == 0 */
if (cmdedit_x) {
int cols_right;
for (cols_right = cmdedit_x; cols_right > 0; cols_right++) {
for (cols_right = cmdedit_x; cols_right > 0; cols_right--) {
tputs(right_cmd, 1, bb_putchar);
}
}