[tag=NN] [lemma=","] [lemma=the] □
[tag=NN] [lemma=","] [lemma=the] □ □
[tag=NN] [lemma=","] [lemma=the] □*
By providing a prefix argument , the function calls filename-at-point and switches you to a buffer visiting the file filename in another window . When the user clicks on the Pause button , the function calls the banner_main ( ) function . For example , for the help system in an IDE , a user could browse a function reference where you have created custom tags , and when the user clicks on the function name , the function call could be inserted into the user 's code .