Executes Vimscript (multiline block of Ex commands), like anonymous :source.

Unlike nvim_command() this function supports heredocs, script-scope (s:), etc.

On execution error: fails with VimL error, updates v:errmsg.

Parameters:

• {src} Vimscript code
• {opts} Optional parameters. - output: (boolean, default false) Whether to capture and return all (non-error, non-shell :!) output.

Return: Dictionary containing information about execution, with these keys: - output: (string|nil) Output if opts.output is true.

See also:

• execute()
• nvim_command()
• nvim_cmd()