/// Gets the buffer line count
///
/// @param buffer The buffer handle
/// @param[out] err Details of an error that may have occurred
/// @return The line count
Integer buffer_line_count(Buffer buffer, Error *err)
{
buf_T *buf = find_buffer_by_handle(buffer, err);
if (!buf) {
return 0;
}
return buf->b_ml.ml_line_count;
}
/// Sets the current buffer
///
/// @param id The buffer handle
/// @param[out] err Details of an error that may have occurred
void vim_set_current_buffer(Buffer buffer, Error *err)
{
buf_T *buf = find_buffer_by_handle(buffer, err);
if (!buf) {
return;
}
try_start();
if (do_buffer(DOBUF_GOTO, DOBUF_FIRST, FORWARD, buf->b_fnum, 0) == FAIL) {
if (try_end(err)) {
return;
}
char msg[256];
snprintf(msg, sizeof(msg), "failed to switch to buffer %d", (int)buffer);
set_api_error(msg, err);
return;
}
try_end(err);
}
/// (usually by opening the buffer again in a new window). API methods such as
/// |nvim_buf_get_lines()| and |nvim_buf_line_count()| will be affected.
///
/// You can use |nvim_buf_is_loaded()| or |nvim_buf_line_count()| to check
/// whether a buffer is loaded.
/// Gets the buffer line count
///
/// @param buffer Buffer handle, or 0 for current buffer
/// @param[out] err Error details, if any
/// @return Line count, or 0 for unloaded buffer. |api-buffer|
Integer nvim_buf_line_count(Buffer buffer, Error *err)
FUNC_API_SINCE(1)
{
buf_T *buf = find_buffer_by_handle(buffer, err);
if (!buf) {
return 0;
}
// return sentinel value if the buffer isn't loaded
if (buf->b_ml.ml_mfp == NULL) {
return 0;
}
return buf->b_ml.ml_line_count;
}
/// Gets a buffer line
///