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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 file names recorded in the tags table; it is read as a string rather than as a file name. Therefore, completion and defaulting are not available, and you must enter the file name the same way it appears in the tags table. Do not include a directory as part of the file name unless the file name recorded in the tags table includes a directory.
M-x tags-apropos is like apropos
for tags
(see Apropos). It finds all the tags in the selected tags table
whose entries match regexp, and displays them. If the variable
tags-apropos-verbose
is non-nil
, it displays the names
of the tags files together with the tag names.
You can customize the appearance of the output with the face
tags-tag-face
. You can display additional output with M-x
tags-apropos by customizing the variable
tags-apropos-additional-actions
—see its documentation for
details.
You can also use the collection of tag names to complete a symbol name in the buffer. See Symbol Completion.