tags-table-including

tags-table-including is a compiled Lisp function in `etags.el'.

(tags-table-including THIS-FILE CORE-ONLY)

Search current tags tables for tags for THIS-FILE.
Subroutine of `visit-tags-table-buffer'.
Looks for a tags table that has such tags or that includes a table
that has them. Returns the name of the first such table.
Non-nil CORE-ONLY means check only tags tables that are already in
buffers. If CORE-ONLY is nil, it is ignored.