Homepage: https://emacswiki.org/emacs/download/etags-table.el
Author: Scott Frazer
Updated:
Set tags table(s) based on current file
This extension sets the tags table(s) based on the current file. `etags-table-alist' is a list of lists, where the car of each sublist is compared to the current filename. If it matches, all the rest of the list elements are put on `tags-table-list'. If `etags-table-search-up-depth' is an integer, the file path will be searched upwards for a tags file. If one is found, it will be added to the tags table list; this is actually done first so the local TAGS file is at the head of the list. When you switch files and do something tag-related, the tags table list is automatically recomputed.