showeach.rc

; $Id: showeach.rc,v 1.5 2004/12/15 23:41:22 tom Exp $
; Show each (non-scratch/invisible) buffer, if possible, in a separate window.

store-procedure show-each-buffer "Show each buffer in a window"
;~trace on
	~local %count %maxwindows %lenwindows
	~local %read-hook
	~local %buffer-hook
	~local %autobuffer %oldbuffer %topbuffer
	; reset autobuffer, otherwise we cannot step through buffer list
	setv %autobuffer=$autobuffer
	set noautobuffer

	; You may want to customize this by cancelling the read/buffer hooks
	; if you have set them to something more intrusive than syntax filtering.
	setv %read-hook=$read-hook
	setv %buffer-hook=$buffer-hook
	;setv $read-hook=''
	;setv $buffer-hook=''

	; determine the buffer we'll return to at the end
	~if &or \
		&sin $bflags 's' \
		&sin $bflags 'i'
		setv %oldbuffer=$abufname
	~elseif &sin $cbufname '[unnamed]'
		setv %oldbuffer=$abufname
	~else
		setv %oldbuffer=$cbufname
	~endif

	; count the number of buffers to show
	setv %count=1
	setv %maxwindows=&div &sub $pagelen 1 3
	rewind
	setv %topbuffer=$cbufname
	~while &lt %count %maxwindows
		;; write-message &cat 'Buffer: ' $cbufname
		~force ~hidden ~quiet next-buffer
		~if &not $status
			~break
		~endif
		setv %count=&add %count 1
	~endwhile
	;; write-message &cat 'Buffer-Count: ' %count
	setv %maxwindows=%count
	; compute the window height, excluding the status line for each
	setv %lenwindows=&sub &div &sub $pagelen 1 %maxwindows 1
	;; write-message &cat 'Window-Size: ' %lenwindows

	setv $read-hook=%read-hook
	setv $buffer-hook=%buffer-hook

	; create the windows
	~if &gt %maxwindows 1
		setv %count=1
		rewind
		delete-other-windows
		~while &lt %count %maxwindows
			1 split-current-window
			%lenwindows resize-window
			next-window
			next-buffer
			setv %count=&add %count 1
		~endwhile

		select-buffer %oldbuffer
		write-message &cat 'Split into ' &cat %maxwindows &cat ' windows, size ' %lenwindows
	~else
		write-message 'Found only one non-scratch buffer'
	~endif
	setv $autobuffer=%autobuffer
;~trace off
~endm

; For testing -
; map L :source showeach.rc
; map K :show-each-buffer