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search: make search-direction configurable

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Daniel Eklöf 2019-08-30 20:15:12 +02:00
parent 42714c51a9
commit 556bf95b28
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GPG key ID: 5BBD4992C116573F
2 changed files with 24 additions and 7 deletions
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30
search.c
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@ -63,6 +63,9 @@ search_cancel(struct terminal *term)
static void
search_update(struct terminal *term)
{
bool backward = term->search.direction == SEARCH_BACKWARD;
term->search.direction = SEARCH_BACKWARD;
if (term->search.len == 0) {
term->search.match = (struct coord){-1, -1};
term->search.match_len = 0;
@ -78,23 +81,36 @@ search_update(struct terminal *term)
(len > 0 && start_row >= 0 && start_col >= 0));
if (len == 0) {
start_row = grid_row_absolute_in_view(term->grid, term->rows - 1);
start_col = term->cols - 1;
if (backward) {
start_row = grid_row_absolute_in_view(term->grid, term->rows - 1);
start_col = term->cols - 1;
} else {
start_row = grid_row_absolute_in_view(term->grid, 0);
start_col = 0;
}
}
LOG_DBG("search: update: starting at row=%d col=%d (offset = %d, view = %d)",
start_row, start_col, term->grid->offset, term->grid->view);
LOG_DBG("search: update: %s: starting at row=%d col=%d (offset = %d, view = %d)",
backward ? "backward" : "forward", start_row, start_col,
term->grid->offset, term->grid->view);
#define ROW_DEC(_r) ((_r) = ((_r) - 1 + term->grid->num_rows) % term->grid->num_rows)
#define ROW_INC(_r) ((_r) = ((_r) + 1) % term->grid->num_rows)
/* Scan backward from current end-of-output */
/* TODO: don't search "scrollback" in alt screen? */
for (size_t r = 0; r < term->grid->num_rows; ROW_DEC(start_row), r++) {
for (size_t r = 0;
r < term->grid->num_rows;
backward ? ROW_DEC(start_row) : ROW_INC(start_row), r++)
{
const struct row *row = term->grid->rows[start_row];
if (row == NULL)
continue;
for (; start_col >= 0; start_col--) {
for (;
backward ? start_col >= 0 : start_col < term->cols;
backward ? start_col-- : start_col++)
{
if (wcsncasecmp(&row->cells[start_col].wc, term->search.buf, 1) != 0)
continue;
@ -207,7 +223,7 @@ search_update(struct terminal *term)
return;
}
start_col = term->cols - 1;
start_col = backward ? term->cols - 1 : 0;
}
/* No match */

1
terminal.h
View file

@ -353,6 +353,7 @@ struct terminal {
size_t len;
size_t sz;
size_t cursor;
enum { SEARCH_BACKWARD, SEARCH_FORWARD} direction;
int original_view;
bool view_followed_offset;