(emacs.info) Completion Options

 
 Completion Options
 ------------------
 
    When completion is done on file names, certain file names are usually
 ignored.  The variable `completion-ignored-extensions' contains a list
 of strings; a file whose name ends in any of those strings is ignored
 as a possible completion.  The standard value of this variable has
 several elements including `".o"', `".elc"', `".dvi"' and `"~"'.  The
 effect is that, for example, `foo' can complete to `foo.c' even though
 `foo.o' exists as well.  However, if _all_ the possible completions end
 in "ignored" strings, then they are not ignored.  Ignored extensions do
 not apply to lists of completions--those always mention all possible
 completions.
 
    Normally, a completion command that finds the next character is
 undetermined automatically displays a list of all possible completions.
 If the variable `completion-auto-help' is set to `nil', this does not
 happen, and you must type `?' to display the possible completions.
 
    The `complete' library implements a more powerful kind of completion
 that can complete multiple words at a time.  For example, it can
 complete the command name abbreviation `p-b' into `print-buffer',
 because no other command starts with two words whose initials are `p'
 and `b'.  To use this library, put `(load "complete")' in your
 `~/.emacs' file ( Init File).
 
    Icomplete mode presents a constantly-updated display that tells you
 what completions are available for the text you've entered so far.  The
 command to enable or disable this minor mode is `M-x icomplete-mode'.
Info Catalog
(emacs.info) Strict Completion
(emacs.info) Completion
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