static const char *prompt_backspace(Vis *vis, const char *keys, const Arg *arg) {
Win *prompt = vis->win;
Text *txt = prompt->file->text;
size_t size = text_size(txt);
size_t pos = view_cursor_get(prompt->view);
char c;
if (pos == size && (pos == 1 || (size >= 2 && text_byte_get(txt, size-2, &c) && c == '\n'))) {
prompt_restore(prompt);
prompt_hide(prompt);
} else {
vis_operator(vis, VIS_OP_DELETE);
vis_motion(vis, VIS_MOVE_CHAR_PREV);
}
return keys;
}
static const char *replace(Vis *vis, const char *keys, const Arg *arg) {
if (!keys[0])
return NULL;
const char *next = vis_keys_next(vis, keys);
if (!next)
return NULL;
size_t len = next - keys;
char key[len+1];
memcpy(key, keys, len);
key[len] = '\0';
vis_operator(vis, VIS_OP_REPLACE);
vis_motion(vis, VIS_MOVE_NOP);
vis_keys_inject(vis, next, key);
vis_keys_inject(vis, next+len, "<Escape>");
return next;
}
static const char *operator_filter(Vis *vis, const char *keys, const Arg *arg) {
vis_operator(vis, VIS_OP_FILTER, arg->s);
return keys;
}
static const char *operator(Vis *vis, const char *keys, const Arg *arg) {
vis_operator(vis, arg->i);
return keys;
}
