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Revert "term: cursor-left: reduce move count by one when lcf=true"

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This reverts commit 02e3e4ac9b.

This broke at least Emacs. Cursor movement at the margins *is*
undefined, and the behavior we’re now reverting to matches XTerm.
This commit is contained in:
Daniel Eklöf 2020-10-02 20:02:36 +02:00
parent 02e3e4ac9b
commit 5594746e49
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2 changed files with 0 additions and 7 deletions
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2
CHANGELOG.md
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@ -43,8 +43,6 @@
that it is (much) slower compared to previous foot versions. Use the that it is (much) slower compared to previous foot versions. Use the
**scrollback.multiplier** option in `foot.ini` if you find the new **scrollback.multiplier** option in `foot.ini` if you find the new
speed too slow (https://codeberg.org/dnkl/foot/issues/144). speed too slow (https://codeberg.org/dnkl/foot/issues/144).
* Cursor left movements moving cursor to wrong location when cursor is
“beyond” the right margin.
### Security ### Security

5
terminal.c
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@ -1728,11 +1728,6 @@ term_cursor_home(struct terminal *term)
void void
term_cursor_left(struct terminal *term, int count) term_cursor_left(struct terminal *term, int count)
{ {
if (unlikely(term->grid->cursor.lcf))
count--;
assert(count >= 0);
int move_amount = min(term->grid->cursor.point.col, count); int move_amount = min(term->grid->cursor.point.col, count);
term->grid->cursor.point.col -= move_amount; term->grid->cursor.point.col -= move_amount;
assert(term->grid->cursor.point.col >= 0); assert(term->grid->cursor.point.col >= 0);