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vt: TAB: don’t print a ‘\t’ to the grid if the *current* cell isn’t empty

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If the cursor is already at the right edge, our logic that checked for
non-empty cells failed; it didn’t check the current cell.

Fix by initializing ‘emit_tab_char’ to true/false, depending on the
contents of the current cell.
This commit is contained in:
Daniel Eklöf 2021-06-07 21:16:38 +02:00
parent 4d56dd430b
commit 9d3351472d
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GPG key ID: 5BBD4992C116573F
1 changed files with 4 additions and 3 deletions
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7
vt.c
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@ -174,12 +174,13 @@ action_execute(struct terminal *term, uint8_t c)
xassert(new_col >= start_col); xassert(new_col >= start_col);
xassert(new_col < term->cols); xassert(new_col < term->cols);
bool emit_tab_char = true;
struct row *row = term->grid->cur_row; struct row *row = term->grid->cur_row;
bool emit_tab_char = (row->cells[start_col].wc == 0 ||
row->cells[start_col].wc == L' ');
/* Check if all cells from here until the next tab stop are empty */ /* Check if all cells from here until the next tab stop are empty */
for (const struct cell *cell = &row->cells[start_col]; for (const struct cell *cell = &row->cells[start_col + 1];
cell < &row->cells[new_col]; cell < &row->cells[new_col];
cell++) cell++)
{ {