Return a list of command-line completion matches. {type} specifies what for. The following completion types are supported: arglist file names in argument list augroup autocmd groups buffer buffer names behave :behave suboptions color color schemes command Ex command (and arguments) compiler compilers cscope |:cscope| suboptions dir directory names environment environment variable names event autocommand events expression Vim expression file file and directory names file_in_path file and directory names in |'path'| filetype filetype names |'filetype'| function function name help help subjects highlight highlight groups history :history suboptions locale locale names (as output of locale -a) mapclear buffer argument mapping mapping name menu menus messages |:messages| suboptions option options packadd optional package |pack-add| names shellcmd Shell command sign |:sign| suboptions syntax syntax file names |'syntax'| syntime |:syntime| suboptions tag tags tag_listfiles tags, file names user user names var user variables If {pat} is an empty string, then all the matches are returned. Otherwise only items matching {pat} are returned. See |wildcards| for the use of special characters in {pat}. If the optional {filtered} flag is set to 1, then 'wildignore' is applied to filter the results. Otherwise all the matches are returned. The 'wildignorecase' option always applies. If there are no matches, an empty list is returned. An invalid value for {type} produces an error. Can also be used as a |method|: GetPattern()->getcompletion('color')