21.11.7 Tags Table Inquiries
Display a list of the tags defined in a specific program file.
Display a list of all tags matching a specified regexp.
`M-x list-tags' reads the name of one of the files described by the
selected tags table, and displays a list of all the tags defined in that
file. The "file name" argument is really just a string to compare
against the names recorded in the tags table; it is read as a string
rather than a file name. Therefore, completion and defaulting are not
available, and you must enter the string the same way it appears in the
tag table. Do not include a directory as part of the file name unless
the file name recorded in the tags table contains that directory.
`M-x tags-apropos' is like `apropos' for tags. It reads a regexp,
then finds all the tags in the selected tags table whose entries match
that regexp, and displays the tag names found.
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