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XCB(1)			    General Commands Manual			XCB(1)

NAME
       xcb - X Cut Buffers - Pigeon holes for your cut and paste selections.

SYNOPSIS
       xcb [Xt option] [-l layout] [-n count] [-p|-s|-S	list] [-r count]

DESCRIPTION
       Xcb  provides easy access to the	cut buffers built into every X server.
       It allows the buffers to	be manipulated either via the command line, or
       with the	mouse in a point and click manner.  The	buffers	can be used as
       holding pens to store and retrieve arbitrary data fragments.  Any  num-
       ber of cut buffers may be created, so any number	of different pieces of
       data can	be saved and recalled later.  By default, 8  cut  buffers  are
       created.	 The program is	designed primarily for use with	textual	data.

       Xcb has two modes of operation.	Normally xcb provides an array of win-
       dows on your display, one per cut buffer,  tiled	 horizontally,	verti-
       cally, or in some user specified	layout.	 Each window displays the con-
       tents of	its respective cut buffer.  Data can be	cut from and pasted to
       the  windows in a similar manner	to xterm.  The buffers can also	be ro-
       tated.

       In task mode, xcb lets you access the  cut  buffers  from  the  command
       line.   Cut buffers can be loaded from stdin, copied or concatenated to
       stdout, loaded using the	current	PRIMARY	selection, or rotated an arbi-
       trary number of positions.  In this mode	of operation, xcb performs the
       requested task and then exits.  It does not create any windows and  has
       no interaction with the mouse or	keyboard.

OPTIONS
       Xcb  supports  the full set of X	Toolkit	Intrinsics options, as well as
       those listed below.  Xcb	options	can appear in any order.  The presence
       of the -p, -r, -s or -S options causes xcb to execute in	task mode, de-
       scribed above.

       -l layout
	      This option controls the geometry	arrangement of	xcb's  subwin-
	      dows.   It  is  the  command  line equivalent of the .layout re-
	      source, described	below.

       -n count
	      Create count cut buffers.	 Count can be any integer greater than
	      zero.   This  option  is	the  command  line  equivalent	of the
	      .bufferCount resource, described below.

       -u     Use utf-8	instead	of the current locale settings when  executing
	      in task mode and doing I/O.

       -V     Print the	xcb release version number and exit immediately.

       -p list
	      Print  the  contents  of	the  listed  buffer(s) on stdout.  The
	      buffered data is printed exactly as it is	stored in the  server.
	      Selecting	 two  or  more buffers has the effect of concatenating
	      the data on stdout.  The cut buffers are numbered	from 0...  on-
	      wards.  The list can be either a single digit, a comma separated
	      list of digits, a	range of the form m-n, or some combination  of
	      lists  and  ranges.  The buffers are printed in listed order, so
	      repeated numbers in the list can be  used	 to  duplicate	buffer
	      contents.

       -r count
	      Rotate  the  buffers by count positions.	Count can be any inte-
	      ger, positive or negative.  This option may be used in  conjunc-
	      tion  with  the  -n  count option	to rotate a specific number of
	      buffers.	If the -n option is not	used, xcb will rotate the num-
	      ber of buffers given by the .bufferCount resource.

       -s list
	      Store  the data from stdin in the	listed buffer(s).  If the list
	      refers to	two or more buffers, the input data is	duplicated  in
	      each  buffer.   Refer  to	 the -p	option for the definition of a
	      list.

       -S list
	      Store the	current	PRIMARY	selection  data	 in  the  listed  buf-
	      fer(s).	The  data is converted to a string representation.  If
	      the list refers to two or	more buffers, the PRIMARY selection is
	      duplicated in each buffer.  Refer	to the -p option for the defi-
	      nition of	a list.	 Under the -S option xcb waits for  the	 nomi-
	      nated  cut  buffer's  contents  to change	before exiting.	 If no
	      change is	detected within	3 seconds, xcb exits with  a  non-zero
	      return code.

WIDGETS	and RESOURCES
       The xcb widget hierarchy	consists of a collection of custom buffer wid-
       gets, one per cut buffer.  In the Athena	version	of the program,	 these
       buffer  widgets	are  all contained within a single Athena form widget.
       In the Motif version of the program, they are each  enclosed  by	 Motif
       frame  widgets, and the frame widgets are all contained within a	single
       Motif RowColumn widget.

       The names of the	buffer widgets are  "buffer0",	"buffer1",  "buffer2",
       ....  etc.,  and	their class name is "Buffer".  Each buffer widget sup-
       ports all the standard core widget resources, plus the .foreground  and
       .fontSet	resources.

       Application wide	resources are as follows:

	 .bufferCount (default value 8)
	       This is the number of buffer widgets to create.
	       Any number of widgets (greater than zero) can be	created.

	 .layout (default value	"h")
	       Only the	first character	of the resource	value is significant.
	       This is the geometry arrangement	to apply in the	container widget.
	       The layout can be "h" (horizontal), "v" (vertical), or some
	       other value to disable the inbuilt geometry code	and specify
	       the layout via your X resources.	 An example is provided	in the
	       application default resources file.

EVENTS and TRANSLATIONS
       Xcb's  input semantics are coded	into a Toolkit translation table.  The
       default bindings	have been chosen to conform with the default  configu-
       ration of other cut and paste clients, such as xterm.  The bindings may
       be altered or overridden	according to your needs.   The	actions	 func-
       tions provided by xcb are:-

       cut()	       causes the contents of the chosen cut buffer to become
		       the PRIMARY selection.  The window contents, if any,
		       are highlighted,	and can	then be	pasted into other
		       cut buffers or applications.

       paste()	       causes the value	of the PRIMARY selection to be
		       converted into text and pasted into the chosen cut
		       buffer, overwriting any previous	buffer contents.
		       If no PRIMARY selection is present, xcb pastes
		       the contents of cut buffer zero into the	chosen buffer.

       clear()	       clears the chosen cut buffer.

       rotate(NN)      rotates the cut buffers by NN positions.	 NN may
		       be any positive or negative number.

       refresh()       causes the cut buffer window to be cleared and redrawn.

       selreq()	       this action function handles paste requests
		       from other clients, or other xcb	windows.
		       It should always	be bound to SelectionRequest events.

       selclear()      this action function responds to	the loss of
		       ownership of the	PRIMARY	selection property.
		       It should always	be bound to SelectionClear events.

       quit()	       causes xcb to terminate.

       The default bindings are	as follows:-

       <Btn1Down>:	   cut() \n\
       Shift <Btn2Down>:   clear() \n\
       <Btn2Down>:	   paste() \n\
       Shift <Btn3Down>:   rotate(-1) \n\
       <Btn3Down>:	   rotate(1) \n\
       <Key>Left:	   rotate(-1) \n\
       <Key>Right:	   rotate(1) \n\
       <Key>Up:		   rotate(-1) \n\
       <Key>Down:	   rotate(1) \n\
       <Key>q:		   quit() \n\
       <SelReq>:	   selreq() \n\
       <SelClr>:	   selclear()

EXAMPLES
       The following are some examples of xcb task mode	usage:-

       xcb -s 0-7 < /dev/null
       This clears the first 8 cut buffers in your server.

       echo "G'day." | xcb -display bigears:0.0	-s 1,3,5,7
       This loads the string "G'day." into four	of the cut buffers on the dis-
       play "bigears".

       xsendevent -win buffer5 '<Btn1Down>'
       This uses the program xsendevent	to send	a synthetic mouse click	 event
       to  an  xcb subwindow, thereby making that window the owner of the PRI-
       MARY selection.

       ls `xcb -p 2,3`
       This produces a listing of all the files	named in cut buffers 2 and 3.

       xcb -p 0-7 | xcb	-s 0
       This concatenates the values in the first 8 cut buffers,	and places the
       result back in cut buffer zero.

       xcb -S 0	&& xcb -p 0
       The  first  command copies the current PRIMARY selection	into the first
       cut buffer.  If the copy	succeeds, then the second command prints  that
       data on stdout.

       for i in	0 1 2 3	4 5 6 7
       do
	       xcb -p $i > $HOME/.xcb/$i
       done
       for i in	0 1 2 3	4 5 6 7
       do
	       xcb -s $i < $HOME/.xcb/$i
       done
       This first loop saves the contents of each of the cut buffers in	a sep-
       arate file under	your home directory.  The second loop restores the cut
       buffer contents from those files.  When placed in your .logout and .lo-
       gin scripts respectively, the commands are a simple method of  preserv-
       ing your	cut buffers across login sessions.

       function	g {
	       echo "$1\\c" | xcb -s 7
	       grep "$@"
       }
       function	vg {
	       vi +/`xcb -p 7` "$@"
       }
       These  two  shell functions exemplify a simple mechanism	for saving and
       reusing regular expressions.  The first function	saves the  regex  used
       for  grep-ing  into  cut	buffer 7.  The second function reuses the most
       recent grep regex as a search command in	 vi.   There  is  considerable
       scope for expanding and improving these ideas.

SEE ALSO
       xterm(1), xcutsel(1), xclipboard(1), xprop(1)
       Athena Widget Set - C Language Interface
       Motif Programmers Reference Guide

AUTHORS
       Current Maintainer (I18n	version)
       Marc Lehmann
       E-mail: pcg@goof.com

       Original	Author
       Farrell McKay
       E-mail: Farrell.McKay@mpx.com.au

       XView modifications provided by Danny Vanderryn
       E-mail: dvanderr@us.oracle.com

COPYRIGHT
       Copyright (C) 1992,1993,1994 by Farrell McKay.

       Permission  to  use, copy, modify, and distribute this software and its
       documentation for any purpose and without fee is	hereby	granted,  pro-
       vided  that  the	 above copyright notice	appears	in all copies and that
       both that copyright notice and this permission notice  appear  in  sup-
       porting	documentation.	 This software is provided "as is" without ex-
       press or	implied	warranty.

BUGS  :-)
       Xlib's underlying protocol for moving selection data between client and
       server can sometimes be slow, depending on the amount of	data involved.
       Do not expect fast performance if your selections are big or  you  want
       to  store  big  files in	your cut buffers!  ("big" means, say, over 10k
       bytes - but your	mileage	may vary).

X Version 11			  Oct 6	1994				XCB(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | WIDGETS and RESOURCES | EVENTS and TRANSLATIONS | EXAMPLES | SEE ALSO | AUTHORS | COPYRIGHT | BUGS :-)

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