Return owned text and share cell attribute flags with snapshots

Make text queries return allocated strings released with term_text_free, keeping each capture atomic. Align public attributes with the write core, remove snapshot conversion tables, and migrate tests and the Kitty adapter.

1 files changed, 3 insertions, 20 deletions

diff --git a/tests/helpers/term_api.h b/tests/helpers/term_api.h
index bfa8d71..f2d6a5d 100644
--- a/tests/helpers/term_api.h
+++ b/tests/helpers/term_api.h
@@ -137,35 +137,18 @@ static inline void tt_select(struct term *t, int x1, int y1, int x2, int y2)
 /* NULL when nothing is selected. */
 static inline char *tt_selection_text(const struct term *t)
 {
-    size_t n = term_selection_text(t, NULL, 0);
-    if (!n)
-        return NULL;
-    char *text = malloc(n + 1);
-    if (text)
-        term_selection_text(t, text, n + 1);
-    return text;
+    return term_selection_text(t);
 }
 
 static inline char *tt_history_text(struct term *t, int max_rows)
 {
-    size_t n = term_history_text(t, max_rows, NULL, 0);
-    char *text = malloc(n + 1);
-    if (text)
-        term_history_text(t, max_rows, text, n + 1);
-    return text;
+    return term_history_text(t, max_rows);
 }
 
 /* NULL when there is no link. */
 static inline char *tt_link_at(struct term *t, int col, int row)
 {
-    struct term_vector2i cell = { .x = col, .y = row };
-    size_t n = term_link_at(t, cell, NULL, 0);
-    if (!n)
-        return NULL;
-    char *url = malloc(n + 1);
-    if (url)
-        term_link_at(t, cell, url, n + 1);
-    return url;
+    return term_link_at(t, (struct term_vector2i){ .x = col, .y = row });
 }
 
 static inline bool tt_resize(struct term *t, int cols, int rows)