bool buffer_insert0(Buffer *buf, size_t pos, const char *data) {
if (pos == 0)
return buffer_prepend0(buf, data);
if (pos == buf->len)
return buffer_append0(buf, data);
return buffer_insert(buf, pos, data, strlen(data));
}
void vis_keys_feed(Vis *vis, const char *input) {
if (!input)
return;
if (vis->recording)
macro_append(vis->recording, input);
if (vis->macro_operator)
macro_append(vis->macro_operator, input);
if (!buffer_append0(vis->keys, input))
buffer_truncate(vis->keys);
/* if we are being called from within a keyhandler then appending
* the new keys to the end of the input queue is enough. they will
* be interpreted once the key handler returns and control reaches
* back to the vis_keys_process function. */
if (!vis->keyhandler)
vis_keys_process(vis);
}
const char *vis_keys_push(Vis *vis, const char *input) {
if (!input)
return NULL;
if (vis->recording)
macro_append(vis->recording, input);
if (vis->macro_operator)
macro_append(vis->macro_operator, input);
if (!buffer_append0(&vis->input_queue, input)) {
buffer_truncate(&vis->input_queue);
return NULL;
}
return vis_keys_raw(vis, &vis->input_queue, input);
}
static bool cmd_substitute(Vis *vis, Win *win, Command *cmd, const char *argv[], Cursor *cur, Filerange *range) {
Buffer buf;
buffer_init(&buf);
bool ret = false;
if (buffer_put0(&buf, "s") && buffer_append0(&buf, argv[1]))
ret = cmd_filter(vis, win, cmd, (const char*[]){ argv[0], "sed", buf.data, NULL }, cur, range);
