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Fixup backspace behavior in rline

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This commit is contained in:
K. Lange 2022-08-14 13:48:07 +09:00
parent 4e791e9d31
commit e6e63ada72
1 changed files with 23 additions and 19 deletions
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42
src/vendor/rline.c vendored
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@ -1665,23 +1665,25 @@ static void line_delete(line_t * line, int offset) {
*/
static void delete_at_cursor(void) {
if (column > 0) {
if (the_line->text[column-1].codepoint == ' ') {
/* Delete this space */
line_delete(the_line, column);
column--;
if (offset > 0) offset--;
line_delete(the_line, column);
column--;
if (offset > 0) offset--;
}
}
while (column > 0 && the_line->text[column-1].codepoint == ' ' && (column % 4 != 0)) {
line_delete(the_line, column);
column--;
if (offset > 0) offset--;
}
} else {
line_delete(the_line, column);
column--;
if (offset > 0) offset--;
static void smart_backspace(void) {
if (column > 0) {
int i;
for (i = 0; i < column; ++i) {
if (the_line->text[i].codepoint != ' ') break;
}
if (i == column) {
delete_at_cursor();
while (column > 0 && (column % 4)) delete_at_cursor();
return;
}
}
delete_at_cursor();
}
/**
@ -1691,13 +1693,15 @@ static void delete_word(void) {
if (!the_line->actual) return;
if (!column) return;
while (column > 0 && the_line->text[column-1].codepoint == ' ') {
delete_at_cursor();
}
do {
if (column > 0) {
line_delete(the_line, column);
column--;
if (offset > 0) offset--;
delete_at_cursor();
}
} while (column && the_line->text[column-1].codepoint != ' ');
} while (column > 0 && the_line->text[column-1].codepoint != ' ');
}
/**
@ -2343,7 +2347,7 @@ static int read_line(void) {
break;
case DELETE_KEY:
case BACKSPACE_KEY:
delete_at_cursor();
smart_backspace();
break;
case 13:
case ENTER_KEY: