/// Executes an ex-mode command str
///
/// @param str The command str
/// @param[out] err Details of an error that may have occurred
void vim_command(String str, Error *err)
{
// Run the command
try_start();
do_cmdline_cmd((char_u *) str.data);
update_screen(VALID);
try_end(err);
}
/// Executes an ex-command.
/// On VimL error: Returns the VimL error; v:errmsg is not updated.
///
/// @param command Ex-command string
/// @param[out] err Error details (including actual VimL error), if any
void nvim_command(String command, Error *err)
{
// Run the command
try_start();
do_cmdline_cmd(command.data);
update_screen(VALID);
try_end(err);
}
void vim_command(String str, Error *err)
{
// We still use 0-terminated strings, so we must convert.
char *cmd_str = xstrndup(str.data, str.size);
// Run the command
try_start();
do_cmdline_cmd((char_u *)cmd_str);
free(cmd_str);
update_screen(VALID);
try_end(err);
}
/// Sets the current tab page
///
/// @param handle The tab page handle
/// @param[out] err Details of an error that may have occurred
void vim_set_current_tabpage(Tabpage tabpage, Error *err)
{
tabpage_T *tp = find_tab_by_handle(tabpage, err);
if (!tp) {
return;
}
try_start();
goto_tabpage_tp(tp, true, true);
try_end(err);
}
Object vim_eval(String str, Error *err)
{
Object rv;
char *expr_str = xstrndup(str.data, str.size);
// Evaluate the expression
try_start();
typval_T *expr_result = eval_expr((char_u *)expr_str, NULL);
free(expr_str);
if (!try_end(err)) {
// No errors, convert the result
rv = vim_to_object(expr_result);
}
// Free the vim object
free_tv(expr_result);
return rv;
}
/// Call the given function with the given arguments stored in an array.
///
/// @param fname Function to call
/// @param args Functions arguments packed in an Array
/// @param[out] err Details of an error that may have occurred
/// @return Result of the function call
Object vim_call_function(String fname, Array args, Error *err)
{
Object rv = OBJECT_INIT;
if (args.size > MAX_FUNC_ARGS) {
api_set_error(err, Validation,
_("Function called with too many arguments."));
return rv;
}
// Convert the arguments in args from Object to typval_T values
typval_T vim_args[MAX_FUNC_ARGS + 1];
size_t i = 0; // also used for freeing the variables
for (; i < args.size; i++) {
if (!object_to_vim(args.items[i], &vim_args[i], err)) {
goto free_vim_args;
}
}
try_start();
// Call the function
typval_T rettv;
int dummy;
int r = call_func((char_u *) fname.data, (int) fname.size,
&rettv, (int) args.size, vim_args,
curwin->w_cursor.lnum, curwin->w_cursor.lnum, &dummy,
true,
NULL);
if (r == FAIL) {
api_set_error(err, Exception, _("Error calling function."));
}
if (!try_end(err)) {
rv = vim_to_object(&rettv);
}
clear_tv(&rettv);
free_vim_args:
while (i > 0) {
clear_tv(&vim_args[--i]);
}
return rv;
}
/// Evaluates the expression str using the vim internal expression
/// evaluator (see |expression|).
/// Dictionaries and lists are recursively expanded.
///
/// @param str The expression str
/// @param[out] err Details of an error that may have occurred
/// @return The expanded object
Object vim_eval(String str, Error *err)
{
Object rv;
// Evaluate the expression
try_start();
typval_T *expr_result = eval_expr((char_u *) str.data, NULL);
if (!expr_result) {
set_api_error("Failed to eval expression", err);
}
if (!try_end(err)) {
// No errors, convert the result
rv = vim_to_object(expr_result);
}
// Free the vim object
free_tv(expr_result);
return rv;
}
/// Evaluates a VimL expression (:help expression).
/// Dictionaries and Lists are recursively expanded.
/// On VimL error: Returns a generic error; v:errmsg is not updated.
///
/// @param expr VimL expression string
/// @param[out] err Error details, if any
/// @return Evaluation result or expanded object
Object nvim_eval(String expr, Error *err)
{
Object rv = OBJECT_INIT;
// Evaluate the expression
try_start();
typval_T *expr_result = eval_expr((char_u *)expr.data, NULL);
if (!expr_result) {
api_set_error(err, Exception, _("Failed to evaluate expression"));
}
if (!try_end(err)) {
// No errors, convert the result
rv = vim_to_object(expr_result);
}
// Free the vim object
free_tv(expr_result);
return rv;
}
/// Sets the current window
///
/// @param handle The window handle
void vim_set_current_window(Window window, Error *err)
{
win_T *win = find_window_by_handle(window, err);
if (!win) {
return;
}
try_start();
goto_tabpage_win(win_find_tabpage(win), win);
if (win != curwin) {
if (try_end(err)) {
return;
}
set_api_error("did not switch to the specified window", err);
return;
}
try_end(err);
}
/// 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);
}
/// Changes vim working directory
///
/// @param dir The new working directory
/// @param[out] err Details of an error that may have occurred
void vim_change_directory(String dir, Error *err)
{
if (dir.size >= MAXPATHL) {
set_api_error("directory string is too long", err);
return;
}
char string[MAXPATHL];
strncpy(string, dir.data, dir.size);
string[dir.size] = NUL;
try_start();
if (vim_chdir((char_u *)string)) {
if (!try_end(err)) {
set_api_error("failed to change directory", err);
}
return;
}
post_chdir(false);
try_end(err);
}
/// Changes Vim working directory
///
/// @param dir The new working directory
/// @param[out] err Details of an error that may have occurred
void vim_change_directory(String dir, Error *err)
{
if (dir.size >= MAXPATHL) {
api_set_error(err, Validation, _("Directory string is too long"));
return;
}
char string[MAXPATHL];
strncpy(string, dir.data, dir.size);
string[dir.size] = NUL;
try_start();
if (vim_chdir((char_u *)string)) {
if (!try_end(err)) {
api_set_error(err, Exception, _("Failed to change directory"));
}
return;
}
post_chdir(kCdScopeGlobal);
try_end(err);
}
