ibuffer-filtering-alist

ibuffer-filtering-alist is a variable defined in `ibuf-ext.el'.
Its value is shown below.

Documentation:
An alist of (SYMBOL DESCRIPTION FUNCTION) which describes a filter.

You most likely do not want to modify this variable directly; see
`define-ibuffer-filter'.

SYMBOL is the symbolic name of the filter. DESCRIPTION is used when
displaying information to the user. FUNCTION is given a buffer and
the value of the qualifier, and returns non-nil if and only if the
buffer should be displayed.

Value:

((predicate "predicate"
	    #[514 "r
q\210\300
!)\207"
		  [eval]
		  4 "\n\n(fn BUF QUALIFIER)"])
 (content "content"
	  #[514 "r
q\210\212eb\210\300
\301\302#*\207"
		[re-search-forward nil t]
		6 "\n\n(fn BUF QUALIFIER)"])
 (size-lt "size less than"
	  #[514 "r
q\210\300 )
W\207"
		[buffer-size]
		4 "\n\n(fn BUF QUALIFIER)"])
 (size-gt "size greater than"
	  #[514 "r
q\210\300 )
V\207"
		[buffer-size]
		4 "\n\n(fn BUF QUALIFIER)"])
 (filename "filename"
	   #[514 "r
q\210\300 )\211\205\211\301\"\262
\207"
		 [ibuffer-buffer-file-name string-match]
		 7 "\n\n(fn BUF QUALIFIER)"])
 (name "buffer name"
       #[514 "\300
\301!\"\207"
	     [string-match buffer-name]
	     6 "\n\n(fn BUF QUALIFIER)"])
 (derived-mode "derived mode"
	       #[514 "r
q\210\300
!)\207"
		     [derived-mode-p]
		     4 "\n\n(fn BUF QUALIFIER)"])
 (used-mode "major mode in use"
	    #[514 "\211\300\301\"=\207"
		  [buffer-local-value major-mode]
		  6 "\n\n(fn BUF QUALIFIER)"])
 (mode "major mode"
       #[514 "\211\300\301\"=\207"
	     [buffer-local-value major-mode]
	     6 "\n\n(fn BUF QUALIFIER)"]))