Check-in [be67606d89]
Not logged in

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:add VecTcLab to assets folder
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: be67606d89ae1d0dd53aa23f9bcb038332535e0e
User & Date: chw 2016-11-16 07:56:28
Context
2016-11-16
07:57
add ukaz and VecTcLab to [undroidwish] builds check-in: 670f192399 user: chw tags: trunk
07:56
add VecTcLab to assets folder check-in: be67606d89 user: chw tags: trunk
07:55
add ukaz to assets folder check-in: 35c4f510aa user: chw tags: trunk
Changes

Added assets/VecTcLab/README.md.





>
>
1
2
# VecTcLab
A console for VecTcl derived from tkcon

Added assets/VecTcLab/lib/vectclplot/pkgIndex.tcl.























>
>
>
>
>
>
>
>
>
>
>
1
2
3
4
5
6
7
8
9
10
11
# Tcl package index file, version 1.1
# This file is generated by the "pkg_mkIndex" command
# and sourced either when an application starts up or
# by a "package unknown" script.  It invokes the
# "package ifneeded" command to set up package-related
# information so that packages will be loaded automatically
# in response to "package require" commands.  When this
# script is sourced, the variable $dir must contain the
# full path name of this file's directory.

package ifneeded vectcl::plot 0.5 [list source [file join $dir vectclplot.tcl]]

Added assets/VecTcLab/lib/vectclplot/vectclplot.tcl.



















































































>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
package provide vectcl::plot 0.5
package require snit
package require ukaz

namespace eval vectcl::plot {
	variable instcounter 0
	proc figure {} {
		variable instcounter
		incr instcounter
		set tl .fig$instcounter
		Figure $tl
	}
	
	namespace export figure

	snit::widget Figure {
		hulltype toplevel
		component plot
		delegate option * to plot
		delegate method * to plot except plot
		constructor {args} {
			install plot using ukaz::graph $win.plot
			pack $plot -fill both -expand yes
			$self configurelist $args
		}

		method plot {x y args} {
			# combine x and y into one array
			if {[numarray dimensions $x]!=1 || [numarray dimensions $y]!=1} {
				return -code error "x and y must be vectors of equal length!"
			}
			set coords {}
			foreach xc $x yc $y {
				lappend coords $xc $yc
			}
			$plot plot $coords {*}$args
		}

	}
}

Added assets/VecTcLab/license.terms.tkcon.













































































>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
		   * COPYRIGHT AND LICENSE TERMS *

This software is copyrighted by Jeffrey Hobbs <jeff and hobbs org>.  The
following terms apply to all files associated with the software unless
explicitly disclaimed in individual files.

The authors hereby grant permission to use, copy, modify, distribute, and
license this software and its documentation for any purpose, provided that
existing copyright notices are retained in all copies and that this notice
is included verbatim in any distributions.  No written agreement, license,
or royalty fee is required for any of the authorized uses.

IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY DERIVATIVES THEREOF,
EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE IS
PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE NO
OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
MODIFICATIONS.

RESTRICTED RIGHTS: Use, duplication or disclosure by the U.S. government
is subject to the restrictions as set forth in subparagraph (c) (1) (ii)
of the Rights in Technical Data and Computer Software Clause as DFARS
252.227-7013 and FAR 52.227-19.

SPECIAL NOTES:

This software is also falls under the bourbon_ware clause v2:

 This software is free, but should you find this software useful in your
 daily work and would like to compensate the author, donations in the form
 of aged bourbon and scotch are welcome by the author.  The user may feel
 exempt from this clause if they are below drinking age or think the author
 has already partaken of too many drinks.

Added assets/VecTcLab/vectclab.tcl.













































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6271
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
6295
6296
6297
6298
6299
6300
6301
6302
6303
6304
6305
6306
6307
6308
6309
6310
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
6359
6360
6361
6362
6363
6364
6365
6366
6367
6368
6369
6370
6371
6372
6373
6374
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
6391
6392
6393
6394
6395
6396
6397
6398
6399
6400
6401
6402
6403
6404
6405
6406
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
6446
6447
6448
6449
6450
6451
6452
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
6467
6468
6469
6470
6471
6472
6473
6474
6475
6476
6477
6478
6479
6480
6481
6482
6483
6484
6485
6486
6487
6488
6489
6490
6491
6492
6493
6494
6495
6496
6497
6498
6499
6500
6501
6502
6503
6504
6505
6506
6507
6508
6509
6510
6511
6512
6513
6514
6515
6516
6517
6518
6519
6520
6521
6522
6523
6524
6525
6526
6527
6528
6529
6530
6531
6532
6533
6534
6535
6536
6537
6538
6539
6540
6541
6542
6543
6544
6545
6546
6547
6548
6549
6550
6551
6552
6553
6554
6555
6556
6557
6558
6559
6560
6561
6562
6563
6564
6565
6566
6567
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
6583
6584
6585
6586
6587
6588
6589
6590
6591
6592
6593
6594
6595
6596
6597
6598
6599
6600
6601
6602
6603
6604
6605
6606
6607
6608
6609
6610
6611
6612
6613
6614
6615
6616
6617
6618
6619
6620
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
#!/bin/sh
# -*- tcl -*-
# \
exec wish "$0" ${1+"$@"}

#
## tkcon.tcl
## Enhanced Tk Console, part of the VerTcl system
##
## Originally based off Brent Welch's Tcl Shell Widget
## (from "Practical Programming in Tcl and Tk")
##
## Thanks to the following (among many) for early bug reports & code ideas:
## Steven Wahl, Jan Nijtmans, Mark Crimmins, Wart
##
## Copyright (c) 1995-2011 Jeffrey Hobbs, jeff(a)hobbs(.)org
## Initiated: Thu Aug 17 15:36:47 PDT 1995
##
## <chw@ch-werner.de> small modifications for using with SDL/Tk
##
## source standard_disclaimer.tcl
## source bourbon_ware.tcl
##

# Proxy support for retrieving the current version of Tkcon.
#
# Mon Jun 25 12:19:56 2001 - Pat Thoyts
#
# In your tkcon.cfg or .tkconrc file put your proxy details into the
# `proxy' member of the `PRIV' array. e.g.:
#
#    set ::tkcon::PRIV(proxy) wwwproxy:8080
#
# If you want to be prompted for proxy authentication details (eg for
# an NT proxy server) make the second element of this variable non-nil - eg:
#
#    set ::tkcon::PRIV(proxy) {wwwproxy:8080 1}
#
# Or you can set the above variable from within tkcon by calling 
#
#    tkcon master set ::tkcon:PRIV(proxy) wwwproxy:8080
#

if {$tcl_version < 8.4} {
    return -code error "tkcon requires at least Tcl/Tk 8.4"
} else {
    package require Tk 8.4
}

# add the current dir as an auto_path
set vectclabdir [file normalize [file dirname [info script]]]
lappend auto_path [file join $vectclabdir lib]

# We need to load some package to get what's available, and we
# choose ctext because we'll use it if its available in the editor
catch {package require ctext}
foreach pkg [info loaded {}] {
    set file [lindex $pkg 0]
    set name [lindex $pkg 1]
    if {![catch {set version [package require $name]}]} {
	if {[package ifneeded $name $version] eq ""} {
	    package ifneeded $name $version [list load $file $name]
	}
    }
}

# Unset temporary global vars
catch {unset pkg file name version}

# Initialize the ::tkcon namespace
#
namespace eval ::tkcon {
    # when modifying this line, make sure that the auto-upgrade check
    # for version still works.
    variable VERSION "2.7"
    # The OPT variable is an array containing most of the optional
    # info to configure.  COLOR has the color data.
    variable OPT
    variable COLOR

    # PRIV is used for internal data that only tkcon should fiddle with.
    variable PRIV
    set PRIV(WWW) [info exists embed_args]
    set PRIV(AQUA) [expr {$::tcl_version >= 8.4 && [tk windowingsystem] == "aqua"}]
    set PRIV(CTRL) [expr {$PRIV(AQUA) ? "Command-" : "Control-"}]
    set PRIV(ACC) [expr {$PRIV(AQUA) ? "Command-" : "Ctrl+"}]

    variable EXPECT 0
}

## ::tkcon::Init - inits tkcon
#
# Calls:	::tkcon::InitUI
# Outputs:	errors found in tkcon's resource file
##
proc ::tkcon::Init {args} {
    variable VERSION
    variable OPT
    variable COLOR
    variable PRIV
    global tcl_platform env tcl_interactive errorInfo

    set tcl_interactive 1
    set argc [llength $args]

    ##
    ## When setting up all the default values, we always check for
    ## prior existence.  This allows users who embed tkcon to modify
    ## the initial state before tkcon initializes itself.
    ##

    # bg == {} will get bg color from the main toplevel (in InitUI)
    foreach {key default} {
	bg		{}
	blink		\#FFFF00
	cursor		\#000000
	disabled	\#4D4D4D
	proc		\#008800
	var		\#FFC0D0
	prompt		\#8F4433
	stdin		\#000000
	stdout		\#0000FF
	stderr		\#FF0000
    } {
	if {![info exists COLOR($key)]} { set COLOR($key) $default }
    }

    # expandorder could also include 'Xotcl' (before Procname)
    foreach {key default} {
	autoload	{}
	blinktime	500
	blinkrange	1
	buffer		512
	maxlinelen	0
	calcmode	1
	cols		80
	debugPrompt	{(level \#$level) debug [history nextid] > }
	dead		{}
	edit		edit
	expandorder	{Methodname Pathname Variable Procname}
	font		{}
	history		48
	hoterrors	1
	library		{}
	lightbrace	1
	lightcmd	1
	maineval	{}
	maxmenu		18
	nontcl		0
	prompt1		{ignore this, it's set below}
	rows		20
	scrollypos	right
	showmenu	1
	showmultiple	1
	showstatusbar	1
	slaveeval	{}
	slaveexit	close
	subhistory	1
	tabspace	8
	gc-delay	60000
	gets		{congets}
	overrideexit	1
	usehistory	1
	resultfilter	{}

	exec		slave
    } {
	if {![info exists OPT($key)]} { set OPT($key) $default }
    }

    foreach {key default} {
	app		{}
	appname		{}
	apptype		slave
	namesp		::
	cmd		{}
	cmdbuf		{}
	cmdsave		{}
	event		1
	deadapp		0
	deadsock	0
	debugging	0
	displayWin	.
	histid		0
	find		{}
	find,case	0
	find,reg	0
	errorInfo	{}
	protocol	exit
	showOnStartup	1
	slaveprocs	{
	    alias clear dir dump echo idebug lremove tkcon_trim
	    tkcon_puts tkcon_gets observe observe_var unalias which what
	}
	RCS		{RCS: @(#) $Id: tkcon.tcl,v 1.122 2014/09/09 10:46:15 hobbs Exp $}
	HEADURL		{http://tkcon.cvs.sourceforge.net/viewvc/tkcon/tkcon/tkcon.tcl}

	docs		"http://tkcon.sourceforge.net/"
	email		{jeff(a)hobbs(.)org}
	root		.
	uid		0
	tabs		{}
    } {
	if {![info exists PRIV($key)]} { set PRIV($key) $default }
    }
    foreach {key default} {
	slavealias	{ $OPT(edit) more less tkcon }
    } {
	if {![info exists PRIV($key)]} { set PRIV($key) [subst $default] }
    }
    set PRIV(version) $VERSION

    if {[info exists PRIV(name)]} {
	set title $PRIV(name)
    } else {
	MainInit
	# some main initialization occurs later in this proc,
	# to go after the UI init
	set MainInit 1
	set title Main
    }

    ## NOTES FOR STAYING IN PRIMARY INTERPRETER:
    ##
    ## If you set ::tkcon::OPT(exec) to {}, then instead of a multiple
    ## interp model, you get tkcon operating in the main interp by default.
    ## This can be useful when attaching to programs that like to operate
    ## in the main interpter (for example, based on special wish'es).
    ## You can set this from the command line with -exec ""
    ## A side effect is that all tkcon command line args will be used
    ## by the first console only.
    #set OPT(exec) {}

    if {$PRIV(WWW)} {
	lappend PRIV(slavealias) history
	set OPT(prompt1) {[history nextid] % }
    } else {
	lappend PRIV(slaveprocs) tcl_unknown unknown
	set OPT(prompt1) {([file tail [pwd]]) [history nextid] % }
    }

    ## If we are using the default '.' toplevel, and there appear to be
    ## children of '.', then make sure we use a disassociated toplevel.
    if {$PRIV(root) == "." && [llength [winfo children .]]} {
	set PRIV(root) .tkcon
    }

    ## Do platform specific configuration here, other than defaults
    ### Use tkcon.cfg filename for resource filename on non-unix systems
    ### Determine what directory the resource file should be in
    switch $tcl_platform(platform) {
	macintosh	{
	    if {![interp issafe]} {cd [file dirname [info script]]}
	    set envHome		PREF_FOLDER
	    set rcfile		tkcon.cfg
	    set histfile	tkcon.hst
	    catch {console hide}
	}
	windows		{
	    set envHome		HOME
	    set rcfile		tkcon.cfg
	    set histfile	tkcon.hst
	}
	unix		{
	    set envHome		HOME
	    set rcfile		.tkconrc
	    set histfile	.tkcon_history
	}
    }
    if {[info exists env($envHome)]} {
	set home $env($envHome)
	if {[file pathtype $home] == "volumerelative"} {
	    # Convert 'C:' to 'C:/' if necessary, innocuous otherwise
	    append home /
	}
	if {![info exists PRIV(rcfile)]} {
	    set PRIV(rcfile)	[file join $home $rcfile]
	}
	if {![info exists PRIV(histfile)]} {
	    set PRIV(histfile)	[file join $home $histfile]
	}
    }

    ## Handle command line arguments before sourcing resource file to
    ## find if resource file is being specified (let other args pass).
    if {[set i [lsearch -exact $args -rcfile]] != -1} {
	set PRIV(rcfile) [lindex $args [incr i]]
    }

    if {!$PRIV(WWW) && [file exists $PRIV(rcfile)]} {
	set code [catch {uplevel \#0 [list source $PRIV(rcfile)]} err]
    }

    if {[info exists env(TK_CON_LIBRARY)]} {
	lappend ::auto_path $env(TK_CON_LIBRARY)
    } elseif {$OPT(library) != ""} {
	lappend ::auto_path $OPT(library)
    }

    if {![info exists ::tcl_pkgPath]} {
	set dir [file join [file dirname [info nameofexec]] lib]
	if {[llength [info commands @scope]]} {
	    set dir [file join $dir itcl]
	}
	catch {source [file join $dir pkgIndex.tcl]}
    }
    catch {tclPkgUnknown dummy-name dummy-version}

    ## Handle rest of command line arguments after sourcing resource file
    ## and slave is created, but before initializing UI or setting packages.
    set slaveargs {}
    set slavefiles {}
    set slaveargv0 {}
    set truth {^(1|yes|true|on)$}
    for {set i 0} {$i < $argc} {incr i} {
	set arg [lindex $args $i]
	if {[string match {-*} $arg]} {
	    set val [lindex $args [incr i]]
	    ## Handle arg based options
	    switch -glob -- $arg {
		-- - -argv - -args {
		    set slaveargs [concat $slaveargs [lrange $args $i end]]
		    set ::argv $slaveargs
		    set ::argc [llength $::argv]
		    break
		}
		-color-*	{ set COLOR([string range $arg 7 end]) $val }
		-exec		{ set OPT(exec) $val }
		-main - -e - -eval	{ append OPT(maineval) \n$val\n }
		-package - -load	{
		    lappend OPT(autoload) $val
		}
		-slave		{ append OPT(slaveeval) \n$val\n }
		-nontcl		{ set OPT(nontcl) [regexp -nocase $truth $val]}
		-root		{ set PRIV(root) $val }
		-font		{ set OPT(font) $val }
		-rcfile	{}
		default	{ lappend slaveargs $arg; incr i -1 }
	    }
	} elseif {[file isfile $arg]} {
	    if {$i == 0} {
		set slaveargv0 $arg
	    }
	    lappend slavefiles $arg
	} else {
	    lappend slaveargs $arg
	}
    }

    ## Create slave executable
    if {"" != $OPT(exec)} {
	InitSlave $OPT(exec) $slaveargs $slaveargv0
    } else {
	set argc [llength $slaveargs]
	set args $slaveargs
	uplevel \#0 $slaveargs
    }

    # Try not to make tkcon override too many standard defaults, and only
    # do it for the tkcon bits
    set optclass [tk appname]$PRIV(root)
    option add $optclass*Menu.tearOff 0
    option add $optclass*Menu.borderWidth 1
    option add $optclass*Menu.activeBorderWidth 1
    if {!$PRIV(AQUA)} {
	option add $optclass*Scrollbar.borderWidth 1
    }

    ## Attach to the slave, EvalAttached will then be effective
    Attach $PRIV(appname) $PRIV(apptype)
    InitUI $title
    if {"" != $OPT(exec)} {
	# override exit to DeleteTab now that tab has been created
	$OPT(exec) alias exit ::tkcon::DeleteTab $PRIV(curtab) $OPT(exec)
    }

    ## swap puts and gets with the tkcon versions to make sure all
    ## input and output is handled by tkcon
    if {![catch {rename ::puts ::tkcon_tcl_puts}]} {
	interp alias {} ::puts {} ::tkcon_puts
	if {[llength [info commands ::tcl::chan::puts]]} {
	    interp alias {} ::tcl::chan::puts {} ::tkcon_puts
	}
    }
    if {($OPT(gets) != "") && ![catch {rename ::gets ::tkcon_tcl_gets}]} {
	interp alias {} ::gets {} ::tkcon_gets
	if {[llength [info commands ::tcl::chan::gets]]} {
	    interp alias {} ::tcl::chan::gets {} ::tkcon_gets
	}
    }

    EvalSlave history keep $OPT(history)
    if {[info exists MainInit]} {
	# Source history file only for the main console, as all slave
	# consoles will adopt from the main's history, but still
	# keep separate histories
	if {!$PRIV(WWW) && $OPT(usehistory) && [file exists $PRIV(histfile)]} {
	    puts -nonewline "loading history file ... "
	    # The history file is built to be loaded in and
	    # understood by tkcon
	    if {[catch {uplevel \#0 [list source $PRIV(histfile)]} herr]} {
		puts stderr "error:\n$herr"
		append PRIV(errorInfo) $errorInfo\n
	    }
	    set PRIV(event) [EvalSlave history nextid]
	    puts "[expr {$PRIV(event)-1}] events added"
	}
    }

    ## Autoload specified packages in slave
    set pkgs [EvalSlave package names]
    foreach pkg $OPT(autoload) {
	puts -nonewline "autoloading package \"$pkg\" ... "
	if {[lsearch -exact $pkgs $pkg]>-1} {
	    if {[catch {EvalSlave package require [list $pkg]} pkgerr]} {
		puts stderr "error:\n$pkgerr"
		append PRIV(errorInfo) $errorInfo\n
	    } else { puts "OK" }
	} else {
	    puts stderr "error: package does not exist"
	}
    }

    ## Evaluate maineval in slave
    if {($OPT(maineval) ne "") && [catch {uplevel \#0 $OPT(maineval)} merr]} {
	puts stderr "error in eval:\n$merr"
	append PRIV(errorInfo) $errorInfo\n
    }

    ## Source extra command line argument files into slave executable
    foreach fn $slavefiles {
	puts -nonewline "slave sourcing \"$fn\" ... "
	if {[catch {EvalSlave uplevel \#0 [list source $fn]} fnerr]} {
	    puts stderr "error:\n$fnerr"
	    append PRIV(errorInfo) $errorInfo\n
	} else { puts "OK" }
    }

    ## Evaluate slaveeval in slave
    if {($OPT(slaveeval) ne "")
	&& [catch {interp eval $OPT(exec) $OPT(slaveeval)} serr]} {
	puts stderr "error in slave eval:\n$serr"
	append PRIV(errorInfo) $errorInfo\n
    }
    ## Output any error/output that may have been returned from rcfile
    if {[info exists code] && $code && ($err ne "")} {
	puts stderr "error in $PRIV(rcfile):\n$err"
	append PRIV(errorInfo) $errorInfo
    }
    if {$OPT(exec) ne ""} {
	StateCheckpoint [concat $PRIV(name) $OPT(exec)] slave
    }
    StateCheckpoint $PRIV(name) slave

    puts "buffer line limit:\
	[expr {$OPT(buffer)?$OPT(buffer):{unlimited}}]"

    Prompt "$title console display active (Tcl$::tcl_patchLevel / Tk$::tk_patchLevel)\n"
}

## ::tkcon::InitSlave - inits the slave by placing key procs and aliases in it
## It's arg[cv] are based on passed in options, while argv0 is the same as
## the master.  tcl_interactive is the same as the master as well.
# ARGS:	slave	- name of slave to init.  If it does not exist, it is created.
#	args	- args to pass to a slave as argv/argc
##
proc ::tkcon::InitSlave {slave {slaveargs {}} {slaveargv0 {}}} {
    variable OPT
    variable COLOR
    variable PRIV
    global argv0 tcl_interactive tcl_library env auto_path tk_library

    if {$slave eq ""} {
	return -code error "Don't init the master interpreter, goofball"
    }
    if {![interp exists $slave]} { interp create $slave }
    if {[interp eval $slave info command source] == ""} {
	$slave alias source SafeSource $slave
	$slave alias load SafeLoad $slave
	$slave alias open SafeOpen $slave
	$slave alias file file
	interp eval $slave \
	    [list set auto_path [lremove $auto_path $tk_library]]
	interp eval $slave [dump var -nocomplain tcl_library env]
	interp eval $slave { catch {source [file join $tcl_library init.tcl]} }
	interp eval $slave { catch unknown }
    }
    # This will likely be overridden to call DeleteTab where possible
    $slave alias exit exit
    interp eval $slave {
	# Do package require before changing around puts/gets
	catch {set __tkcon_error ""; set __tkcon_error $errorInfo}
	catch {package require bogus-package-name}
	catch {rename ::puts ::tkcon_tcl_puts}
	set errorInfo ${__tkcon_error}
	unset __tkcon_error
    }
    foreach cmd $PRIV(slaveprocs) { $slave eval [dump proc $cmd] }
    foreach cmd $PRIV(slavealias) { $slave alias $cmd $cmd }
    interp alias $slave ::ls $slave ::dir -full
    interp alias $slave ::puts $slave ::tkcon_puts
    if {[llength [info commands ::tcl::chan::puts]]} {
	interp alias $slave ::tcl::chan::puts $slave ::tkcon_puts
    }
    if {$OPT(gets) != ""} {
	interp eval $slave { catch {rename ::gets ::tkcon_tcl_gets} }
	interp alias $slave ::gets $slave ::tkcon_gets
	if {[llength [info commands ::tcl::chan::gets]]} {
	    interp alias $slave ::tcl::chan::gets $slave ::tkcon_gets
	}
    }
    if {$slaveargv0 != ""} {
	# If tkcon was invoked with 1 or more filenames, then make the
	# first filename argv0 in the slave, as tclsh/wish would do it.
	interp eval $slave [list set argv0 $slaveargv0]
    } else {
	if {[info exists argv0]} {interp eval $slave [list set argv0 $argv0]}
    }
    
    global vectclabdir
    set slautopath [list {*}[lremove $auto_path $tk_library] $vectclabdir]
    # puts "Slave's autopath: [join $slautopath \n]"
    interp eval $slave set tcl_interactive $tcl_interactive \; \
	    set auto_path [list $slautopath] \; \
	    set argc [llength $slaveargs] \; \
	    set argv  [list $slaveargs] \; {
	if {![llength [info command bgerror]]} {
	    proc bgerror err {
		global errorInfo
		set body [info body bgerror]
		rename ::bgerror {}
		if {[auto_load bgerror]} { return [bgerror $err] }
		proc bgerror err $body
		tkcon bgerror $err $errorInfo
	    }
	}
    }

    foreach pkg [lremove [package names] Tcl] {
	foreach v [package versions $pkg] {
	    interp eval $slave [list package ifneeded $pkg $v \
		    [package ifneeded $pkg $v]]
	}
    }

    # load VecTcl
    interp eval $slave {
	package require vectcl
	package require vectcl::plot
	namespace import vectcl::*
	namespace import vectcl::plot::*

	wm withdraw .
	proc pretty_vexpr {e} {
	    # execute expression and nicely format result
	    set vres [uplevel 1 [list vexpr $e]]
	    if {![catch {vectcl::mformat $vres} result]} {
		# mformat succeeded
		# return pretty printed array
		return $result
	    } else {
		# return unformatted output
		return $vres
	    }
	}    
	proc ::vectcl::mformat m {
		# pretty print a matrix
		set d [numarray dimensions $m]
		switch $d {
			1 { set strrep "{[join $m \n]}" }
			2 { set strrep "{{[join $m "}\n {"]}}" }
		default { return -code error "Can't format $d-dimensional array"}
		}
		if {[string length $strrep] > $::DISPLAY_LIMIT} { return "(Too much data)" }
		return $strrep
    }
    set DISPLAY_LIMIT 1000
    }
}

## ::tkcon::InitInterp - inits an interpreter by placing key
## procs and aliases in it.
# ARGS: name	- interp name
#	type	- interp type (slave|interp)
##
proc ::tkcon::InitInterp {name type} {
    variable OPT
    variable PRIV

    ## Don't allow messing up a local master interpreter
    if {($type eq "namespace")
	|| (($type eq "slave") &&
	    [regexp {^([Mm]ain|Slave[0-9]+)$} $name])} { return }
    set old [Attach]
    set oldname $PRIV(namesp)
    catch {
	Attach $name $type
	EvalAttached { catch {rename ::puts ::tkcon_tcl_puts} }
	foreach cmd $PRIV(slaveprocs) { EvalAttached [dump proc $cmd] }
	switch -exact $type {
	    slave {
		foreach cmd $PRIV(slavealias) {
		    Main [list interp alias $name ::$cmd $PRIV(name) ::$cmd]
		}
	    }
	    interp {
		set thistkcon [::send::appname]
		foreach cmd $PRIV(slavealias) {
		    EvalAttached "proc $cmd args { ::send::send [list $thistkcon] $cmd \$args }"
		}
	    }
	}
	## Catch in case it's a 7.4 (no 'interp alias') interp
	EvalAttached {
	    catch {interp alias {} ::ls {} ::dir -full}
	    if {[catch {interp alias {} ::puts {} ::tkcon_puts}]} {
		catch {rename ::tkcon_puts ::puts}
	    } elseif {[llength [info commands ::tcl::chan::puts]]} {
		catch {interp alias {} ::tcl::chan::puts {} ::tkcon_puts}
	    }
	}
	if {$OPT(gets) != ""} {
	    EvalAttached {
		catch {rename ::gets ::tkcon_tcl_gets}
		if {[catch {interp alias {} ::gets {} ::tkcon_gets}]} {
		    catch {rename ::tkcon_gets ::gets}
		} elseif {[llength [info commands ::tcl::chan::gets]]} {
		    catch {interp alias {} ::tcl::chan::gets {} ::tkcon_gets}
		}
	    }
	}
	return
    } {err}
    eval Attach $old
    AttachNamespace $oldname
    if {$err ne ""} { return -code error $err }
}

## ::tkcon::InitUI - inits UI portion (console) of tkcon
## Creates all elements of the console window and sets up the text tags
# ARGS:	root	- widget pathname of the tkcon console root
#	title	- title for the console root and main (.) windows
# Calls:	::tkcon::InitMenus, ::tkcon::Prompt
##
proc ::tkcon::InitUI {title} {
    variable OPT
    variable PRIV
    variable COLOR

    set root $PRIV(root)
    if {$root eq "."} { set w {} } else { set w [toplevel $root] }
    if {!$PRIV(WWW)} {
	wm withdraw $root
	wm protocol $root WM_DELETE_WINDOW $PRIV(protocol)
    }
    set PRIV(base) $w

    catch {font create tkconfixed -family Courier -size -12}
    catch {font create tkconfixedbold -family Courier -size -12 -weight bold}

    set PRIV(statusbar) [set sbar [frame $w.fstatus]]
    set PRIV(tabframe)  [frame $sbar.tabs]
    set PRIV(X) [button $sbar.deltab -text "X" -command ::tkcon::DeleteTab \
		     -activeforeground red -fg red -font tkconfixedbold \
		     -highlightthickness 0 -padx 2 -pady 0 -borderwidth 1 \
		     -state disabled -relief flat -takefocus 0]
    catch {$PRIV(X) configure -overrelief raised}
    label $sbar.cursor -relief sunken -borderwidth 1 -anchor e -width 6 \
	    -textvariable ::tkcon::PRIV(StatusCursor)
    set padx [expr {![info exists ::tcl_platform(os)]
		    || ($::tcl_platform(os) ne "Windows CE")}]
    grid $PRIV(X) $PRIV(tabframe) $sbar.cursor -sticky news -padx $padx
    grid configure $PRIV(tabframe) -sticky nsw
    grid configure $PRIV(X) -pady 0 -padx 0
    grid columnconfigure $sbar 1 -weight 1
    grid rowconfigure $sbar 0 -weight 1
    grid rowconfigure $PRIV(tabframe) 0 -weight 1
    if {$PRIV(AQUA)} {
	# resize control space and correct "X" button space
	grid columnconfigure $sbar [lindex [grid size $sbar] 0] -minsize 16
	$PRIV(X) configure -pady 5 -padx 4
    }

    ## Create console tab
    set con [InitTab $w]
    set PRIV(curtab) $con

    # Only apply this for the first console
    $con configure -setgrid 1 -width $OPT(cols) -height $OPT(rows)
    bind $PRIV(root) <Configure> {
	if {"%W" == $::tkcon::PRIV(root)} {
	    scan [wm geometry [winfo toplevel %W]] "%%dx%%d" \
		::tkcon::OPT(cols) ::tkcon::OPT(rows)
	    if {[info exists ::tkcon::EXP(spawn_id)]} {
		catch {stty rows $::tkcon::OPT(rows) columns \
			   $::tkcon::OPT(cols) < $::tkcon::EXP(slave,name)}
	    }
	}
    }

    # scrollbar
    set sy [scrollbar $w.sy -takefocus 0 -command [list $con yview]]
    if {!$PRIV(WWW) && ($::tcl_platform(os) eq "Windows CE")} {
	$w.sy configure -width 10
    }

    $con configure -yscrollcommand [list $sy set]
    set PRIV(console) $con
    set PRIV(scrolly) $sy

    ## Menus
    ## catch against use in plugin
    if {[catch {menu $w.mbar} PRIV(menubar)]} {
	set PRIV(menubar) [frame $w.mbar -relief raised -borderwidth 1]
    }

    InitMenus $PRIV(menubar) $title
    Bindings

    if {$OPT(showmenu)} {
	$root configure -menu $PRIV(menubar)
    }

    grid $con  -row 1 -column 1 -sticky news
    grid $sy   -row 1 -column [expr {$OPT(scrollypos)=="left"?0:2}] -sticky ns
    grid $sbar -row 2 -column 0 -columnspan 3 -sticky ew

    grid columnconfigure $root 1 -weight 1
    grid rowconfigure    $root 1 -weight 1

    if {!$OPT(showstatusbar)} {
	grid remove $sbar
    }

    # If we can locate the XDG icon file then make use of it.
    if {[package vsatisfies [package provide Tk] 8.6]} {
        if {0 && [tk windowingsystem] eq "x11"} {
            if {[set icon [locate_xdg_icon tkcon-icon.png]] ne ""} {
                image create photo tkcon_icon -file $icon
                wm iconphoto $root tkcon_icon
            }
        }
    }

    if {!$PRIV(WWW)} {
	wm title $root "tkcon $PRIV(version) $title"
	if {$PRIV(showOnStartup)} {
	    # this may throw an error if toplevel is embedded
	    catch {wm deiconify $root}
	}
    }
    if {$PRIV(showOnStartup)} { focus -force $PRIV(console) }
    if {$OPT(gc-delay)} {
	after $OPT(gc-delay) ::tkcon::GarbageCollect
    }
}

# Hunt around the XDG defined directories for the icon.
# Note: hicolor is the standard theme used by xdg-icon-resource.
proc ::tkcon::locate_xdg_icon {name} {
    global env
    set dirs [list /usr/local/share /usr/share]
    if {[info exists env(XDG_DATA_DIRS)]} {
        set dirs [split $env(XDG_DATA_DIRS) :]
    }
    if {[file isdirectory ~/.local/share]} {
        set dirs [linsert $dirs 0 ~/.local/share]
    }
    foreach dir $dirs {
        foreach path [list icons icons/hicolor/48x48/apps] {
            set path [file join $dir $path $name]
            if {[file exists $path]} {
                return $path
            }
        }
    }
    return ""
}

proc ::tkcon::InitTab {w} {
    variable OPT
    variable PRIV
    variable COLOR
    variable ATTACH

    # text console
    set con $w.tab[incr PRIV(uid)]
    text $con -wrap char -foreground $COLOR(stdin) \
	-insertbackground $COLOR(cursor) -borderwidth 1 -highlightthickness 0
    $con mark set output 1.0
    $con mark set limit 1.0
    if {$COLOR(bg) ne ""} {
	$con configure -background $COLOR(bg)
    }
    set COLOR(bg) [$con cget -background]
    if {$OPT(font) ne ""} {
	## Set user-requested font, if any
	$con configure -font $OPT(font)
    } elseif {$::tcl_platform(platform) ne "unix"} {
	## otherwise make sure the font is monospace
	set font [$con cget -font]
	if {![font metrics $font -fixed]} {
	    $con configure -font tkconfixed
	}
    } else {
	$con configure -font tkconfixed
    }
    set OPT(font) [$con cget -font]
    bindtags $con [list $con TkConsole TkConsolePost $PRIV(root) all]

    # scrollbar
    if {!$PRIV(WWW)} {
	if {$::tcl_platform(os) eq "Windows CE"} {
	    font configure tkconfixed -family Tahoma -size 8
	    $con configure -font tkconfixed -borderwidth 0 -padx 0 -pady 0
	    set cw [font measure tkconfixed "0"]
	    set ch [font metrics tkconfixed -linespace]
	    set sw [winfo screenwidth $con]
	    set sh [winfo screenheight $con]
	    # We need the magic hard offsets until I find a way to
	    # correctly assume size
	    if {$cw*($OPT(cols)+2) > $sw} {
		set OPT(cols) [expr {($sw / $cw) - 2}]
	    }
	    if {$ch*($OPT(rows)+3) > $sh} {
		set OPT(rows) [expr {($sh / $ch) - 3}]
	    }
	    # Place it so that the titlebar underlaps the CE titlebar
	    wm geometry $PRIV(root) +0+0
	}
    }
    $con configure -height $OPT(rows) -width $OPT(cols)

    foreach col {prompt stdout stderr stdin proc} {
	$con tag configure $col -foreground $COLOR($col)
    }
    $con tag configure var -background $COLOR(var)
    $con tag raise sel
    $con tag configure blink -background $COLOR(blink)
    $con tag configure find -background $COLOR(blink)

    set ATTACH($con) [Attach]
    set rb [radiobutton $PRIV(tabframe).cb[winfo name $con] -takefocus 0 \
		-textvariable ::tkcon::ATTACH($con) \
		-selectcolor white -relief sunken \
		-indicatoron 0 -padx 0 -pady 0 -borderwidth 1 \
		-variable ::tkcon::PRIV(curtab) -value $con \
		-command [list ::tkcon::GotoTab $con]]
    if {$::tcl_version >= 8.4} {
	$rb configure -offrelief flat -overrelief raised
    }
    if {$PRIV(AQUA)} {
	$rb configure -padx 4 -pady 4 -highlightthickness 0
    }
    grid $rb -row 0 -column [lindex [grid size $PRIV(tabframe)] 0] -sticky ns
    grid $con -row 1 -column 1 -sticky news

    lappend PRIV(tabs) $con
    return $con
}

proc ::tkcon::GotoTab {con} {
    variable PRIV
    variable ATTACH

    set numtabs [llength $PRIV(tabs)]
    #if {$numtabs == 1} { return }

    if {[regexp {^[0-9]+$} $con]} {
	set curtab [lsearch -exact $PRIV(tabs) $PRIV(console)]
	set nexttab [expr {$curtab + $con}]
	if {$nexttab >= $numtabs} {
	    set nexttab 0
	} elseif {$nexttab < 0} {
	    set nexttab "end"
	}
	set con [lindex $PRIV(tabs) $nexttab]
    } elseif {$con == $PRIV(console)} {
	return
    }

    # adjust console
    if {[winfo exists $PRIV(console)]} {
	lower $PRIV(console)
	$PRIV(console) configure -yscrollcommand {}
	set ATTACH($PRIV(console)) [Attach]
    }
    set PRIV(console) $con
    $con configure -yscrollcommand [list $PRIV(scrolly) set]
    $PRIV(scrolly) configure -command [list $con yview]

    # adjust attach
    eval [linsert $ATTACH($con) 0 Attach]

    set PRIV(curtab) $con

    raise $con

    if {[$con compare 1.0 == end-1c]} {
	Prompt
    }

    # set StatusCursor
    set PRIV(StatusCursor) [$con index insert]

    focus -force $con
}

proc ::tkcon::NewTab {{con {}}} {
    variable PRIV
    variable ATTACH

    set con   [InitTab $PRIV(base)]
    set slave [GetSlave]
    InitSlave $slave
    $slave alias exit ::tkcon::DeleteTab $con $slave
    if {$PRIV(name) != ""} {
	set ATTACH($con) [list [list $PRIV(name) $slave] slave]
    } else {
	set ATTACH($con) [list $slave slave]
    }
    $PRIV(X) configure -state normal
    MenuConfigure Console "Delete Tab" -state normal
    GotoTab $con
}

# The extra code arg is for the alias of exit to this function
proc ::tkcon::DeleteTab {{con {}} {slave {}} {code 0}} {
    variable PRIV

    set numtabs [llength $PRIV(tabs)]
    if {$numtabs <= 2} {
	$PRIV(X) configure -state disabled
	MenuConfigure Console "Delete Tab" -state disabled
    }
    if {$numtabs == 1} {
	# in the master, it should do the right thing
	# currently the first master still exists - need rearch to fix
	exit
	# we might end up here, depending on how exit is rerouted
	return
    }

    if {$con == ""} {
	set con $PRIV(console)
    }
    catch {unset ATTACH($con)}
    set curtab  [lsearch -exact $PRIV(tabs) $con]
    set PRIV(tabs) [lreplace $PRIV(tabs) $curtab $curtab]

    set numtabs [llength $PRIV(tabs)]
    set nexttab $curtab
    if {$nexttab >= $numtabs} {
	set nexttab end
    }
    set nexttab [lindex $PRIV(tabs) $nexttab]

    GotoTab $nexttab

    if {$slave != "" && $slave != $::tkcon::OPT(exec)} {
	interp delete $slave
    }
    destroy $PRIV(tabframe).cb[winfo name $con]
    destroy $con
}

## ::tkcon::GarbageCollect - do various cleanup ops periodically to our setup
##
proc ::tkcon::GarbageCollect {} {
    variable OPT
    variable PRIV

    foreach w $PRIV(tabs) {
	if {[winfo exists $w]} {
	    ## Remove error tags that no longer span anything
	    ## Make sure the tag pattern matches the unique tag prefix
	    foreach tag [$w tag names] {
		if {[string match _tag* $tag]
		    && ![llength [$w tag ranges $tag]]} {
		    $w tag delete $tag
		}
	    }
	}
    }
    if {$OPT(gc-delay)} {
	after $OPT(gc-delay) ::tkcon::GarbageCollect
    }
}

## ::tkcon::Eval - evaluates commands input into console window
## This is the first stage of the evaluating commands in the console.
## They need to be broken up into consituent commands (by ::tkcon::CmdSep) in
## case a multiple commands were pasted in, then each is eval'ed (by
## ::tkcon::EvalCmd) in turn.  Any uncompleted command will not be eval'ed.
# ARGS:	w	- console text widget
# Calls:	::tkcon::CmdGet, ::tkcon::CmdSep, ::tkcon::EvalCmd
## 
proc ::tkcon::Eval {w} {
    set complete [CmdSep [CmdGet $w] cmds last]
    $w mark set insert end-1c
    $w insert end \n
    if {[llength $cmds]} {
	foreach c $cmds {EvalCmd $w $c}
	$w insert insert $last {}
    } elseif {$complete} {
	EvalCmd $w $last
    }
    if {[winfo exists $w]} {
	$w see insert
    }
}

## ::tkcon::EvalCmd - evaluates a single command, adding it to history
# ARGS:	w	- console text widget
# 	cmd	- the command to evaluate
# Calls:	::tkcon::Prompt
# Outputs:	result of command to stdout (or stderr if error occured)
# Returns:	next event number
## 
proc ::tkcon::EvalCmd {w cmd} {
    variable OPT
    variable PRIV

    $w mark set output end
    if {$cmd ne ""} {
	set code 0
	if {$OPT(subhistory)} {
	    set ev [EvalSlave history nextid]
	    incr ev -1
	    ## FIX: calcmode doesn't work with requesting history events
	    if {$cmd eq "!!"} {
		set code [catch {EvalSlave history event $ev} cmd]
		if {!$code} {$w insert output $cmd\n stdin}
	    } elseif {[regexp {^!(.+)$} $cmd dummy event]} {
		## Check last event because history event is broken
		set code [catch {EvalSlave history event $ev} cmd]
		if {!$code && ![string match ${event}* $cmd]} {
		    set code [catch {EvalSlave history event $event} cmd]
		}
		if {!$code} {$w insert output $cmd\n stdin}
	    } elseif {[regexp {^\^([^^]*)\^([^^]*)\^?$} $cmd dummy old new]} {
		set code [catch {EvalSlave history event $ev} cmd]
		if {!$code} {
		    regsub -all -- $old $cmd $new cmd
		    $w insert output $cmd\n stdin
		}
	    } elseif {$OPT(calcmode) && ![catch {EvalSlave pretty_vexpr $cmd} err]} {
		AddSlaveHistory $cmd
		set cmd $err
		set code -1
	    }
	}
	if {$OPT(calcmode)} { set exprerr $err }

	if {$code} {
	    $w insert output $cmd\n stderr
	} else {
	    ## We are about to evaluate the command, so move the limit
	    ## mark to ensure that further <Return>s don't cause double
	    ## evaluation of this command - for cases like the command
	    ## has a vwait or something in it
	    $w mark set limit end
	    if {$OPT(nontcl) && ($PRIV(apptype) eq "interp")} {
		set code [catch {EvalSend $cmd} res]
		if {$code == 1} {
		    set PRIV(errorInfo) "Non-Tcl errorInfo not available"
		}
	    } elseif {$PRIV(apptype) eq "socket"} {
		set code [catch {EvalSocket $cmd} res]
		if {$code == 1} {
		    set PRIV(errorInfo) "Socket-based errorInfo not available"
		}
	    } else {
		set code [catch {EvalAttached $cmd} res]
		if {$code == 1} {
		    if {[catch {EvalAttached [list set errorInfo]} err]} {
			set PRIV(errorInfo) "Error getting errorInfo:\n$err"
		    } else {
			set PRIV(errorInfo) $err
		    }
		}
		set PRIV(errorInfo) "$exprerr\n----------------------------\n$PRIV(errorInfo)"
	    }
	    if {![winfo exists $w]} {
		# early abort - must be a deleted tab
		return
	    }
	    AddSlaveHistory $cmd
	    # Run any user defined result filter command.  The command is
	    # passed result code and data.
	    if {[llength $OPT(resultfilter)]} {
		set cmd [linsert $OPT(resultfilter) end $code $res]
		if {[catch {EvalAttached $cmd} res2]} {
		    $w insert output "Filter failed: $res2" stderr \n stdout
		} else {
		    set res $res2
		}
	    }
	    catch {EvalAttached [list set _ $res]}
	    if {[string length $res] > 2044} {
		# If we exceed maximum desired output line length, truncate
		# the result and add "..."
		set res "[string range $res 0 2044]..."
	    }
	    if {$code} {
		if {$OPT(calcmode)} {
		    set res "$exprerr\n------------------------\n$res"
		}
		if {$OPT(hoterrors)} {
		    set tag [UniqueTag $w]
		    $w insert output $res [list stderr $tag] "\n" stderr
		    $w tag bind $tag <Enter> \
			    [list $w tag configure $tag -underline 1]
		    $w tag bind $tag <Leave> \
			    [list $w tag configure $tag -underline 0]
		    $w tag bind $tag <ButtonRelease-1> \
			    "if {!\[info exists tk::Priv(mouseMoved)\] || !\$tk::Priv(mouseMoved)} \
			    {[list $OPT(edit) -attach [Attach] -type error -- $PRIV(errorInfo)]}"
		} else {
		    $w insert output $res stderr "\n" stderr
		}
	    } elseif {$res ne ""} {
		$w insert output $res stdout "\n" stdout
	    }
	}
    }
    Prompt
    set PRIV(event) [EvalSlave history nextid]
}

## ::tkcon::EvalSlave - evaluates the args in the associated slave
## args should be passed to this procedure like they would be at
## the command line (not like to 'eval').
# ARGS:	args	- the command and args to evaluate
##
proc ::tkcon::EvalSlave args {
    interp eval $::tkcon::OPT(exec) $args
}

## ::tkcon::EvalOther - evaluate a command in a foreign interp or slave
## without attaching to it.  No check for existence is made.
# ARGS:	app	- interp/slave name
#	type	- (slave|interp)
##
proc ::tkcon::EvalOther { app type args } {
    if {$type eq "slave"} {
	return [Slave $app $args]
    } else {
	return [uplevel 1 ::send::send [list $app] $args]
    }
}

## ::tkcon::AddSlaveHistory - 
## Command is added to history only if different from previous command.
## This also doesn't cause the history id to be incremented, although the
## command will be evaluated.
# ARGS: cmd	- command to add
##
proc ::tkcon::AddSlaveHistory cmd {
    set ev [EvalSlave history nextid]
    incr ev -1
    set code [catch {EvalSlave history event $ev} lastCmd]
    if {$code || $cmd ne $lastCmd} {
	EvalSlave history add $cmd
	# Save history every time so it's not lost in case of an abnormal termination.
	# Do not warn in case of an error: we don't want an error message 
	# after each command if the history file is not writable.
	catch {SaveHistory}
    }
}

## ::tkcon::EvalSend - sends the args to the attached interpreter
## Varies from 'send' by determining whether attachment is dead
## when an error is received
# ARGS:	cmd	- the command string to send across
# Returns:	the result of the command
##
proc ::tkcon::EvalSend cmd {
    variable OPT
    variable PRIV

    if {$PRIV(deadapp)} {
	if {[lsearch -exact [::send::interps] $PRIV(app)]<0} {
	    return
	} else {
	    set PRIV(appname) [string range $PRIV(appname) 5 end]
	    set PRIV(deadapp) 0
	    Prompt "\n\"$PRIV(app)\" alive\n" [CmdGet $PRIV(console)]
	}
    }
    set code [catch {::send::send -displayof $PRIV(displayWin) $PRIV(app) $cmd} result]
    if {$code && [lsearch -exact [::send::interps] $PRIV(app)]<0} {
	## Interpreter disappeared
	if {($OPT(dead) ne "leave") &&
	    (($OPT(dead) eq "ignore") ||
	     [tk_messageBox -title "Dead Attachment" -type yesno \
		  -icon info -message \
		  "\"$PRIV(app)\" appears to have died.\
		\nReturn to primary slave interpreter?"] eq "no")} {
	    set PRIV(appname) "DEAD:$PRIV(appname)"
	    set PRIV(deadapp) 1
	} else {
	    set err "Attached Tk interpreter \"$PRIV(app)\" died."
	    Attach {}
	    set PRIV(deadapp) 0
	    EvalSlave set errorInfo $err
	}
	Prompt \n [CmdGet $PRIV(console)]
    }
    return -code $code $result
}

## ::tkcon::EvalSocket - sends the string to an interpreter attached via
## a tcp/ip socket
##
## In the EvalSocket case, ::tkcon::PRIV(app) is the socket id
##
## Must determine whether socket is dead when an error is received
# ARGS:	cmd	- the data string to send across
# Returns:	the result of the command
##
proc ::tkcon::EvalSocket cmd {
    variable OPT
    variable PRIV
    global tcl_version

    if {$PRIV(deadapp)} {
	if {![info exists PRIV(app)] || \
		[catch {eof $PRIV(app)} eof] || $eof} {
	    return
	} else {
	    set PRIV(appname) [string range $PRIV(appname) 5 end]
	    set PRIV(deadapp) 0
	    Prompt "\n\"$PRIV(app)\" alive\n" [CmdGet $PRIV(console)]
	}
    }
    # Sockets get \'s interpreted, so that users can
    # send things like \n\r or explicit hex values
    set cmd [subst -novariables -nocommands $cmd]
    #puts [list $PRIV(app) $cmd]
    set code [catch {puts $PRIV(app) $cmd ; flush $PRIV(app)} result]
    if {$code && [eof $PRIV(app)]} {
	## Interpreter died or disappeared
	puts "$code eof [eof $PRIV(app)]"
	EvalSocketClosed $PRIV(app)
    }
    return -code $code $result
}

## ::tkcon::EvalSocketEvent - fileevent command for an interpreter attached
## via a tcp/ip socket
## Must determine whether socket is dead when an error is received
# ARGS:	args	- the args to send across
# Returns:	the result of the command
##
proc ::tkcon::EvalSocketEvent {sock} {
    variable PRIV

    if {[gets $sock line] == -1} {
	if {[eof $sock]} {
	    EvalSocketClosed $sock
	}
	return
    }
    puts $line
}

## ::tkcon::EvalSocketClosed - takes care of handling a closed eval socket
##
# ARGS:	args	- the args to send across
# Returns:	the result of the command
##
proc ::tkcon::EvalSocketClosed {sock} {
    variable OPT
    variable PRIV

    catch {close $sock}
    if {$sock ne $PRIV(app)} {
	# If we are not still attached to that socket, just return.
	# Might be nice to tell the user the socket closed ...
	return
    }
    if {$OPT(dead) ne "leave" &&
	($OPT(dead) eq "ignore" ||
	 [tk_messageBox -title "Dead Attachment" -type yesno \
	      -icon question \
	      -message "\"$PRIV(app)\" appears to have died.\
	    \nReturn to primary slave interpreter?"] eq "no")} {
	set PRIV(appname) "DEAD:$PRIV(appname)"
	set PRIV(deadapp) 1
    } else {
	set err "Attached Tk interpreter \"$PRIV(app)\" died."
	Attach {}
	set PRIV(deadapp) 0
	EvalSlave set errorInfo $err
    }
    Prompt \n [CmdGet $PRIV(console)]
}

## ::tkcon::EvalNamespace - evaluates the args in a particular namespace
## This is an override for ::tkcon::EvalAttached for when the user wants
## to attach to a particular namespace of the attached interp
# ARGS:	attached	
#	namespace	the namespace to evaluate in
#	args		the args to evaluate
# RETURNS:	the result of the command
##
proc ::tkcon::EvalNamespace { attached namespace args } {
    if {[llength $args]} {
	uplevel \#0 $attached \
		[list [concat [list namespace eval $namespace] $args]]
    }
}


## ::tkcon::Namespaces - return all the namespaces descendent from $ns
##
#
##
proc ::tkcon::Namespaces {{ns ::} {l {}}} {
    if {$ns ne ""} { lappend l $ns }
    foreach i [EvalAttached [list namespace children $ns]] {
	set l [Namespaces $i $l]
    }
    return $l
}

## ::tkcon::CmdGet - gets the current command from the console widget
# ARGS:	w	- console text widget
# Returns:	text which compromises current command line
## 
proc ::tkcon::CmdGet w {
    if {![llength [$w tag nextrange prompt limit end]]} {
	$w tag add stdin limit end-1c
	return [$w get limit end-1c]
    }
}

## ::tkcon::CmdSep - separates multiple commands into a list and remainder
# ARGS:	cmd	- (possible) multiple command to separate
# 	list	- varname for the list of commands that were separated.
#	last	- varname of any remainder (like an incomplete final command).
#		If there is only one command, it's placed in this var.
# Returns:	constituent command info in varnames specified by list & rmd.
## 
proc ::tkcon::CmdSep {cmd list last} {
    upvar 1 $list cmds $last inc
    set inc {}
    set cmds {}
    foreach c [split [string trimleft $cmd] \n] {
	if {$inc ne ""} {
	    append inc \n$c
	} else {
	    append inc [string trimleft $c]
	}
	if {[info complete $inc] && ![regexp {[^\\]\\$} $inc]} {
	    if {[regexp "^\[^#\]" $inc]} {lappend cmds $inc}
	    set inc {}
	}
    }
    set i [string equal $inc {}]
    if {$i && $cmds ne "" && ![string match *\n $cmd]} {
	set inc [lindex $cmds end]
	set cmds [lreplace $cmds end end]
    }
    return $i
}

## ::tkcon::CmdSplit - splits multiple commands into a list
# ARGS:	cmd	- (possible) multiple command to separate
# Returns:	constituent commands in a list
## 
proc ::tkcon::CmdSplit {cmd} {
    set inc {}
    set cmds {}
    foreach cmd [split [string trimleft $cmd] \n] {
	if {$inc ne ""} {
	    append inc \n$cmd
	} else {
	    append inc [string trimleft $cmd]
	}
	if {[info complete $inc] && ![regexp {[^\\]\\$} $inc]} {
	    #set inc [string trimright $inc]
	    if {[regexp "^\[^#\]" $inc]} {lappend cmds $inc}
	    set inc {}
	}
    }
    if {[regexp "^\[^#\]" $inc]} {lappend cmds $inc}
    return $cmds
}

## ::tkcon::UniqueTag - creates a uniquely named tag, reusing names
## Called by ::tkcon::EvalCmd
# ARGS:	w	- text widget
# Outputs:	tag name guaranteed unique in the widget
## 
proc ::tkcon::UniqueTag {w} {
    set tags [$w tag names]
    set idx 0
    while {[lsearch -exact $tags _tag[incr idx]] != -1} {}
    return _tag$idx
}

## ::tkcon::ConstrainBuffer - This limits the amount of data in the text widget
## Called by ::tkcon::Prompt and in tkcon proc buffer/console switch cases
# ARGS:	w	- console text widget
#	size	- # of lines to constrain to
# Outputs:	may delete data in console widget
## 
proc ::tkcon::ConstrainBuffer {w size} {
    if {$size && ([$w index end] > $size)} {
	$w delete 1.0 [expr {int([$w index end])-$size}].0
    }
}

## ::tkcon::Prompt - displays the prompt in the console widget
# ARGS:	w	- console text widget
# Outputs:	prompt (specified in ::tkcon::OPT(prompt1)) to console
## 
proc ::tkcon::Prompt {{pre {}} {post {}} {prompt {}}} {
    variable OPT
    variable PRIV

    set w $PRIV(console)
    if {![winfo exists $w]} { return }
    if {$pre ne ""} { $w insert end $pre stdout }
    set i [$w index end-1c]
    if {!$OPT(showstatusbar)} {
	if {$PRIV(appname) ne ""} {
	    $w insert end ">$PRIV(appname)< " prompt
	}
	if {$PRIV(namesp) ne "::"} {
	    $w insert end "<$PRIV(namesp)> " prompt
	}
    }
    if {$prompt ne ""} {
	$w insert end $prompt prompt
    } else {
	$w insert end [EvalSlave subst $OPT(prompt1)] prompt
    }
    $w mark set output $i
    $w mark set insert end
    $w mark set limit insert
    $w mark gravity limit left
    if {$post ne ""} { $w insert end $post stdin }
    ConstrainBuffer $w $OPT(buffer)
    set ::tkcon::PRIV(StatusCursor) [$w index insert]
    $w see end
}
proc ::tkcon::RePrompt {{pre {}} {post {}} {prompt {}}} {
    # same as prompt, but does nothing for those actions where we
    # only wanted to refresh the prompt on attach change when the
    # statusbar is showing (which carries that info instead)
    variable OPT
    if {!$OPT(showstatusbar)} {
	Prompt $pre $post $prompt
    }
}

## ::tkcon::About - gives about info for tkcon
## 
proc ::tkcon::About {} {
    variable OPT
    variable PRIV
    variable COLOR

    set w $PRIV(base).about
    if {![winfo exists $w]} {
	global tk_patchLevel tcl_patchLevel tcl_version
	toplevel $w
	wm withdraw $w
	wm transient $w $PRIV(root)
	wm group $w $PRIV(root)
	catch {wm attributes $w -type dialog}
	wm title $w "About tkcon v$PRIV(version)"
	wm resizable $w 0 0
	button $w.b -text Dismiss -command [list wm withdraw $w]
	text $w.text -height 9 -width 60 \
		-foreground $COLOR(stdin) \
		-background $COLOR(bg) \
		-font $OPT(font) -borderwidth 1 -highlightthickness 0
	grid $w.text -sticky news
	grid $w.b -sticky se -padx 6 -pady 4
	$w.text tag config center -justify center
	$w.text tag config title -justify center -font {Courier -18 bold}
	# strip down the RCS info displayed in the about box
	regexp {,v ([0-9\./: ]*)} $PRIV(RCS) -> RCS
	$w.text insert 1.0 "About tkcon v$PRIV(version)" title \
		"\n\nCopyright 1995-2002 Jeffrey Hobbs, $PRIV(email)\
		\nRelease Info: v$PRIV(version), CVS v$RCS\
		\nDocumentation available at:\n$PRIV(docs)\
		\nUsing: Tcl v$tcl_patchLevel / Tk v$tk_patchLevel" center
	$w.text config -state disabled
	bind $w <Escape> [list destroy $w]
    }
    wm deiconify $w
}

## ::tkcon::InitMenus - inits the menubar and popup for the console
# ARGS:	w	- console text widget
## 
proc ::tkcon::InitMenus {w title} {
    variable OPT
    variable PRIV
    variable COLOR
    global tcl_platform

    option add *[string range $w 1 end]*Menu.tearOff 0

    if {[catch {menu $w.pop}]} {
	label $w.label -text "Menus not available in plugin mode"
	grid $w.label -sticky ew
	return
    }
    menu $w.context -disabledforeground $COLOR(disabled)
    set PRIV(context) $w.context
    set PRIV(popup) $w.pop

    proc MenuButton {w m l} {
	$w add cascade -label $m -underline 0 -menu $w.$l
	return $w.$l
    }
    proc MenuConfigure {m l args} {
	variable PRIV
	eval [list $PRIV(menubar).[string tolower $m] entryconfigure $l] $args
	eval [list $PRIV(popup).[string tolower $m] entryconfigure $l] $args
    }

    foreach m [list File Console Edit Interp Prefs History Help] {
 	set l [string tolower $m]
 	MenuButton $w $m $l
 	$w.pop add cascade -label $m -underline 0 -menu $w.pop.$l
    }

    ## File Menu
    ##
    foreach m [list [menu $w.file -disabledforeground $COLOR(disabled)] \
	    [menu $w.pop.file -disabledforeground $COLOR(disabled)]] {
	$m add command -label "Load File" -underline 0 -command ::tkcon::Load
	$m add cascade -label "Save ..."  -underline 0 -menu $m.save
	$m add separator
	$m add command -label "Quit" -underline 0 -accel $PRIV(ACC)q \
	    -command exit

	## Save Menu
	##
	set s $m.save
	menu $s -disabledforeground $COLOR(disabled)
	$s add command -label "All"	-underline 0 \
		-command {::tkcon::Save {} all}
	$s add command -label "History"	-underline 0 \
		-command {::tkcon::Save {} history}
	$s add command -label "Stdin"	-underline 3 \
		-command {::tkcon::Save {} stdin}
	$s add command -label "Stdout"	-underline 3 \
		-command {::tkcon::Save {} stdout}
	$s add command -label "Stderr"	-underline 3 \
		-command {::tkcon::Save {} stderr}
    }

    ## Console Menu
    ##
    foreach m [list [menu $w.console -disabledfore $COLOR(disabled)] \
	    [menu $w.pop.console -disabledfore $COLOR(disabled)]] {
	$m add command -label "$title Console"	-state disabled
	$m add command -label "New Console" -underline 0 -accel $PRIV(ACC)N \
		-command ::tkcon::New
	$m add command -label "New Tab" -underline 4 -accel $PRIV(ACC)T \
		-command ::tkcon::NewTab
	$m add command -label "Delete Tab" -underline 0 \
		-command ::tkcon::DeleteTab -state disabled
	$m add command -label "Close Console" -underline 0 -accel $PRIV(ACC)w \
		-command ::tkcon::Destroy
	$m add command -label "Clear Console" -underline 1 -accel Ctrl-l \
		-command { clear; ::tkcon::Prompt }
	if {0 && [tk windowingsystem] eq "x11"} {
	    $m add separator
	    $m add command -label "Make Xauth Secure" -und 5 \
		    -command ::tkcon::XauthSecure
	}
	$m add separator
	$m add cascade -label "Attach To ..." -underline 0 -menu $m.attach

	## Attach Console Menu
	##
	set sub [menu $m.attach -disabledforeground $COLOR(disabled)]
	$sub add cascade -label "Interpreter" -underline 0 -menu $sub.apps
	$sub add cascade -label "Namespace"   -underline 0 -menu $sub.name

	## Attach Console Menu
	##
	menu $sub.apps -disabledforeground $COLOR(disabled) \
		-postcommand [list ::tkcon::AttachMenu $sub.apps]

	## Attach Namespace Menu
	##
	menu $sub.name -disabledforeground $COLOR(disabled) \
		-postcommand [list ::tkcon::NamespaceMenu $sub.name]

	## Attach Socket Menu
	##
	$sub add cascade -label "Socket" -underline 0 -menu $sub.sock
	menu $sub.sock -disabledforeground $COLOR(disabled) \
	    -postcommand [list ::tkcon::SocketMenu $sub.sock]

	if {0 && [tk windowingsystem] eq "x11"} {
	    ## Attach Display Menu
	    ##
	    $sub add cascade -label "Display" -underline 0 -menu $sub.disp
	    menu $sub.disp -disabledforeground $COLOR(disabled) \
		    -postcommand [list ::tkcon::DisplayMenu $sub.disp]
	}
    }

    ## Edit Menu
    ##
    set text $PRIV(console)
    foreach m [list [menu $w.edit] [menu $w.pop.edit]] {
	$m add command -label "Cut"   -underline 2 -accel $PRIV(ACC)x \
		-command [list ::tkcon::Cut $text]
	$m add command -label "Copy"  -underline 0 -accel $PRIV(ACC)c \
		-command [list ::tkcon::Copy $text]
	$m add command -label "Paste" -underline 0 -accel $PRIV(ACC)v \
		 -command [list ::tkcon::Paste $text]
	$m add separator
	$m add command -label "Find"  -underline 0 -accel $PRIV(ACC)F \
		-command [list ::tkcon::FindBox $text]
    }

    ## Interp Menu
    ##
    foreach m [list $w.interp $w.pop.interp] {
	menu $m -disabledforeground $COLOR(disabled) \
		-postcommand [list ::tkcon::InterpMenu $m]
    }

    ## Prefs Menu
    ##
    foreach m [list [menu $w.prefs] [menu $w.pop.prefs]] {
	$m add check -label "Brace Highlighting" \
		-underline 0 -variable ::tkcon::OPT(lightbrace)
	$m add check -label "Command Highlighting" \
		-underline 0 -variable ::tkcon::OPT(lightcmd)
	$m add check -label "History Substitution" \
		-underline 0 -variable ::tkcon::OPT(subhistory)
	$m add check -label "Hot Errors" \
		-underline 4 -variable ::tkcon::OPT(hoterrors)
	$m add check -label "Non-Tcl Attachments" \
		-underline 0 -variable ::tkcon::OPT(nontcl)
	$m add check -label "Calculator Mode" \
		-underline 1 -variable ::tkcon::OPT(calcmode)
	$m add check -label "Show Multiple Matches" \
		-underline 0 -variable ::tkcon::OPT(showmultiple)
	if {!$PRIV(AQUA)} {
	    $m add check -label "Show Menubar" \
		-underline 5 -variable ::tkcon::OPT(showmenu) \
		-command {
		    $::tkcon::PRIV(root) configure \
			-menu [expr {$::tkcon::OPT(showmenu) ?
				     $::tkcon::PRIV(menubar) : {}}]
		}
	}
	$m add check -label "Show Statusbar" \
	    -underline 5 -variable ::tkcon::OPT(showstatusbar) \
	    -command {
		if {$::tkcon::OPT(showstatusbar)} {
		    grid $::tkcon::PRIV(statusbar)
		} else { grid remove $::tkcon::PRIV(statusbar) }
	    }
	$m add cascade -label "Scrollbar" -underline 2 -menu $m.scroll

	## Scrollbar Menu
	##
	set m [menu $m.scroll]
	$m add radio -label "Left" -value left \
		-variable ::tkcon::OPT(scrollypos) \
		-command { grid configure $::tkcon::PRIV(scrolly) -column 0 }
	$m add radio -label "Right" -value right \
		-variable ::tkcon::OPT(scrollypos) \
		-command { grid configure $::tkcon::PRIV(scrolly) -column 2 }
    }

    ## History Menu
    ##
    foreach m [list $w.history $w.pop.history] {
	menu $m -disabledforeground $COLOR(disabled) \
		-postcommand [list ::tkcon::HistoryMenu $m]
    }

    ## Help Menu
    ##
    foreach m [list [menu $w.help] [menu $w.pop.help]] {
	$m add command -label "About " -underline 0 -accel $PRIV(ACC)A \
		-command ::tkcon::About
      if {0} {
	$m add command -label "Retrieve Latest Version" -underline 0 \
		-command ::tkcon::Retrieve
	if {![catch {package require ActiveTcl} ver]} {
	    set cmd ""
	    if {$tcl_platform(platform) == "windows"} {
		package require registry
		set ver [join [lrange [split $ver .] 0 3] .]
		set key {HKEY_LOCAL_MACHINE\SOFTWARE\ActiveState\ActiveTcl}
		if {![catch {registry get "$key\\$ver\\Help" ""} help]
		    && [file exists $help]} {
		    set cmd [list exec $::env(COMSPEC) /c start {} $help]
		}
	    } elseif {$tcl_platform(os) == "Darwin"} {
		set ver ActiveTcl-[join [lrange [split $ver .] 0 1] .]
		set rsc "/Library/Frameworks/Tcl.framework/Resources"
		set help "$rsc/English.lproj/$ver/index.html"
		if {[file exists $help]} {
		    set cmd [list exec open $help]
		}
	    } elseif {$tcl_platform(platform) == "unix"} {
		set help [file dirname [info nameofexe]]
		append help /../html/index.html
		if {[file exists $help]} {
		    set cmd [list puts "Start $help"]
		}
	    }
	    if {$cmd != ""} {
		$m add separator
		$m add command -label "ActiveTcl Help" -underline 10 \
		    -command $cmd
	    }
	}
      }
    }
}

## ::tkcon::HistoryMenu - dynamically build the menu for attached interpreters
##
# ARGS:	m	- menu widget
##
proc ::tkcon::HistoryMenu m {
    variable PRIV

    if {![winfo exists $m]} return
    set id [EvalSlave history nextid]
    if {$PRIV(histid)==$id} return
    set PRIV(histid) $id
    $m delete 0 end
    while {($id>1) && ($id>$PRIV(histid)-10) && \
	    ![catch {EvalSlave history event [incr id -1]} tmp]} {
	set lbl $tmp
	if {[string len $lbl]>32} { set lbl [string range $tmp 0 28]... }
	$m add command -label "$id: $lbl" -command "
	$::tkcon::PRIV(console) delete limit end
	$::tkcon::PRIV(console) insert limit [list $tmp]
	$::tkcon::PRIV(console) see end
	::tkcon::Eval $::tkcon::PRIV(console)"
    }
}

## ::tkcon::InterpMenu - dynamically build the menu for attached interpreters
##
# ARGS:	w	- menu widget
##
proc ::tkcon::InterpMenu w {
    variable OPT
    variable PRIV
    variable COLOR

    if {![winfo exists $w]} return
    $w delete 0 end
    foreach {app type} [Attach] break
    $w add command -label "[string toupper $type]: $app" -state disabled
    if {($OPT(nontcl) && $type eq "interp") || $PRIV(deadapp)} {
	$w add separator
	$w add command -state disabled -label "Communication disabled to"
	$w add command -state disabled -label "dead or non-Tcl interps"
	return
    }

    ## Show Last Error
    ##
    $w add separator
    $w add command -label "Show Last Error" \
	    -command [list tkcon error $app $type]

    ## Packages Cascaded Menu
    ##
    $w add separator
    $w add command -label "Manage Packages" -underline 0 \
	-command [list ::tkcon::InterpPkgs $app $type]

    ## State Checkpoint/Revert
    ##
    $w add separator
    $w add command -label "Checkpoint State" \
	    -command [list ::tkcon::StateCheckpoint $app $type]
    $w add command -label "Revert State" \
	    -command [list ::tkcon::StateRevert $app $type]
    $w add command -label "View State Change" \
	    -command [list ::tkcon::StateCompare $app $type]

    ## Init Interp
    ##
    $w add separator
    $w add command -label "Send tkcon Commands" \
	    -command [list ::tkcon::InitInterp $app $type]
}

## ::tkcon::PkgMenu - fill in  in the applications sub-menu
## with a list of all the applications that currently exist.
##
proc ::tkcon::InterpPkgs {app type} {
    variable PRIV

    set t $PRIV(base).interppkgs
    if {![winfo exists $t]} {
	toplevel $t
	wm withdraw $t
	wm title $t "$app Packages"
	wm transient $t $PRIV(root)
	wm group $t $PRIV(root)
	catch {wm attributes $t -type dialog}
	bind $t <Escape> [list destroy $t]

	label $t.ll -text "Loadable:" -anchor w
	label $t.lr -text "Loaded:" -anchor w
	listbox $t.loadable -font tkconfixed -background white -borderwidth 1 \
	    -yscrollcommand [list $t.llsy set] -selectmode extended
	listbox $t.loaded -font tkconfixed -background white -borderwidth 1 \
	    -yscrollcommand [list $t.lrsy set]
	scrollbar $t.llsy -command [list $t.loadable yview]
	scrollbar $t.lrsy -command [list $t.loaded yview]
	button $t.load -borderwidth 1 -text ">>" \
	    -command [list ::tkcon::InterpPkgLoad $app $type $t.loadable]
	if {$::tcl_version >= 8.4} {
	    $t.load configure -relief flat -overrelief raised
	}

	set f [frame $t.btns]
	button $f.refresh -width 8 -text "Refresh" -command [info level 0]
	button $f.dismiss -width 8 -text "Dismiss" -command [list destroy $t]
	grid $f.refresh $f.dismiss -padx 4 -pady 3 -sticky ew
	if {$PRIV(AQUA)} { # corner resize control space
	    grid columnconfigure $f [lindex [grid size $f] 0] -minsize 16
	}

	grid $t.ll x x $t.lr x -sticky ew
	grid $t.loadable $t.llsy $t.load $t.loaded $t.lrsy -sticky news
	grid $t.btns -sticky e -columnspan 5
	grid columnconfigure $t {0 3} -weight 1
	grid rowconfigure $t 1 -weight 1
	grid configure $t.load -sticky ""

	bind $t.loadable <Double-1> "[list $t.load invoke]; break"
    }
    $t.loaded delete 0 end
    $t.loadable delete 0 end

    # just in case stuff has been added to the auto_path
    # we have to make sure that the errorInfo doesn't get screwed up
    EvalAttached {
	set __tkcon_error $errorInfo
	catch {package require bogus-package-name}
	set errorInfo ${__tkcon_error}
	unset __tkcon_error
    }
    # get all packages loaded into current interp
    foreach pkg [EvalAttached [list info loaded {}]] {
	set pkg [lindex $pkg 1]
	set loaded($pkg) [package provide $pkg]
    }
    # get all package names currently visible
    foreach pkg [lremove [EvalAttached {package names}] Tcl] {
	set version [EvalAttached [list package provide $pkg]]
	if {$version ne ""} {
	    set loaded($pkg) $version
	} elseif {![info exists loaded($pkg)]} {
	    set loadable($pkg) package
	}
    }
    # get packages that are loaded in any interp
    foreach pkg [EvalAttached {info loaded}] {
	set pkg [lindex $pkg 1]
	if {![info exists loaded($pkg)] && ![info exists loadable($pkg)]} {
	    set loadable($pkg) load
	}
    }
    foreach pkg [lsort -dictionary [array names loadable]] {
	foreach v [EvalAttached [list package version $pkg]] {
	    $t.loadable insert end [list $pkg $v "($loadable($pkg))"]
	}
    }
    foreach pkg [lsort -dictionary [array names loaded]] {
	$t.loaded insert end [list $pkg $loaded($pkg)]
    }

    wm deiconify $t
    raise $t
}

proc ::tkcon::InterpPkgLoad {app type lb} {
    # load the lb entry items into the interp
    foreach sel [$lb curselection] {
	foreach {pkg ver method} [$lb get $sel] { break }
	if {$method == "(package)"} {
	    set code [catch {::tkcon::EvalOther $app $type \
				 package require $pkg $ver} msg]
	} elseif {$method == "(load)"} {
	    set code [catch {::tkcon::EvalOther $app $type load {} $pkg} msg]
	} else {
	    set code 1
	    set msg "Incorrect entry in Loadable selection"
	}
	if {$code} {
	    tk_messageBox -icon error -title "Error requiring $pkg" -type ok \
		-message "Error requiring $pkg $ver:\n$msg\n$::errorInfo"
	}
    }
    # refresh package list
    InterpPkgs $app $type
}

## ::tkcon::AttachMenu - fill in  in the applications sub-menu
## with a list of all the applications that currently exist.
##
proc ::tkcon::AttachMenu m {
    variable OPT
    variable PRIV

    array set interps [set tmp [Interps]]
    foreach {i j} $tmp { set tknames($j) {} }

    $m delete 0 end
    set cmd {::tkcon::RePrompt \n [::tkcon::CmdGet $::tkcon::PRIV(console)]}
    $m add radio -label {None (use local slave) } -accel $PRIV(ACC)1 \
	    -variable ::tkcon::PRIV(app) \
	    -value [concat $::tkcon::PRIV(name) $::tkcon::OPT(exec)] \
	    -command "::tkcon::Attach {}; $cmd"
    $m add separator
    $m add command -label "Foreign Tk Interpreters" -state disabled
    foreach i [lsort [lremove [::send::interps] [array names tknames]]] {
	$m add radio -label $i -variable ::tkcon::PRIV(app) -value $i \
		-command "::tkcon::Attach [list $i] interp; $cmd"
    }
    $m add separator

    $m add command -label "tkcon Interpreters" -state disabled
    foreach i [lsort [array names interps]] {
	if {$interps($i) eq ""} { set interps($i) "no Tk" }
	if {[regexp {^Slave[0-9]+} $i]} {
	    set opts [list -label "$i ($interps($i))" \
		    -variable ::tkcon::PRIV(app) -value $i \
		    -command "::tkcon::Attach [list $i] slave; $cmd"]
	    if {$PRIV(name) eq $i} {
		append opts " -accel $PRIV(ACC)2"
	    }
	    eval [list $m add radio] $opts
	} else {
	    set name [concat Main $i]
	    if {$name eq "Main"} {
		$m add radio -label "$name ($interps($i))" -accel $PRIV(ACC)3 \
			-variable ::tkcon::PRIV(app) -value Main \
			-command "::tkcon::Attach [list $name] slave; $cmd"
	    } else {
		$m add radio -label "$name ($interps($i))" \
			-variable ::tkcon::PRIV(app) -value $i \
			-command "::tkcon::Attach [list $name] slave; $cmd"
	    }
	}
    }
}

## Displays Cascaded Menu
##
proc ::tkcon::DisplayMenu m {
    $m delete 0 end
    set cmd {::tkcon::RePrompt \n [::tkcon::CmdGet $::tkcon::PRIV(console)]}

    $m add command -label "New Display" -command ::tkcon::NewDisplay
    foreach disp [Display] {
	$m add separator
	$m add command -label $disp -state disabled
	set res [Display $disp]
	set win [lindex $res 0]
	foreach i [lsort [lindex $res 1]] {
	    $m add radio -label $i -variable ::tkcon::PRIV(app) -value $i \
		    -command "::tkcon::Attach [list $i] [list dpy:$win]; $cmd"
	}
    }
}

## Sockets Cascaded Menu
##
proc ::tkcon::SocketMenu m {
    $m delete 0 end
    set cmd {::tkcon::RePrompt \n [::tkcon::CmdGet $::tkcon::PRIV(console)]}

    $m add command -label "Create Connection" \
	    -command "::tkcon::NewSocket; $cmd"
    foreach sock [file channels sock*] {
	$m add radio -label $sock -variable ::tkcon::PRIV(app) -value $sock \
		-command "::tkcon::Attach $sock socket; $cmd"
    }
}

## Namepaces Cascaded Menu
##
proc ::tkcon::NamespaceMenu m {
    variable PRIV
    variable OPT

    $m delete 0 end
    if {($PRIV(deadapp) || $PRIV(apptype) eq "socket" || \
	    ($OPT(nontcl) && $PRIV(apptype) eq "interp"))} {
	$m add command -label "No Namespaces" -state disabled
	return
    }

    ## Same command as for ::tkcon::AttachMenu items
    set cmd {::tkcon::RePrompt \n [::tkcon::CmdGet $::tkcon::PRIV(console)]}

    set names [lsort [Namespaces ::]]
    if {[llength $names] > $OPT(maxmenu)} {
	$m add command -label "Attached to $PRIV(namesp)" -state disabled
	$m add command -label "List Namespaces" \
		-command [list ::tkcon::NamespacesList $names]
    } else {
	foreach i $names {
	    if {$i eq "::"} {
		$m add radio -label "Main" -value $i \
			-variable ::tkcon::PRIV(namesp) \
			-command "::tkcon::AttachNamespace [list $i]; $cmd"
	    } else {
		$m add radio -label $i -value $i \
			-variable ::tkcon::PRIV(namesp) \
			-command "::tkcon::AttachNamespace [list $i]; $cmd"
	    }
	}
    }
}

## Namepaces List 
##
proc ::tkcon::NamespacesList {names} {
    variable PRIV

    set f $PRIV(base).namespaces
    catch {destroy $f}
    toplevel $f
    catch {wm attributes $f -type dialog}
    listbox $f.names -width 30 -height 15 -selectmode single \
	-yscrollcommand [list $f.scrollv set] \
	-xscrollcommand [list $f.scrollh set] \
	-background white -borderwidth 1
    scrollbar $f.scrollv -command [list $f.names yview]
    scrollbar $f.scrollh -command [list $f.names xview] -orient horizontal
    frame $f.buttons
    button $f.cancel -text "Cancel" -command [list destroy $f]

    grid $f.names $f.scrollv -sticky nesw
    grid $f.scrollh -sticky ew
    grid $f.buttons -sticky nesw
    grid $f.cancel -in $f.buttons -pady 6

    grid columnconfigure $f 0 -weight 1
    grid rowconfigure $f  0 -weight 1
    #fill the listbox
    foreach i $names {
	if {$i eq "::"} {
	    $f.names insert 0 Main
	} else {
	    $f.names insert end $i
	}
    }
    #Bindings
    bind $f.names <Double-1> {
	## Catch in case the namespace disappeared on us
	catch { ::tkcon::AttachNamespace [%W get [%W nearest %y]] }
	::tkcon::RePrompt "\n" [::tkcon::CmdGet $::tkcon::PRIV(console)]
	destroy [winfo toplevel %W]
    }
}

# ::tkcon::XauthSecure --
#
#   This removes all the names in the xhost list, and secures
#   the display for Tk send commands.  Of course, this prevents
#   what might have been otherwise allowable X connections
#
# Arguments:
#   none
# Results:
#   Returns nothing
#
proc ::tkcon::XauthSecure {} {
    global tcl_platform

    if {0 && [tk windowingsystem] ne "x11"} {
	# This makes no sense outside of Unix
	return
    }
    set hosts [exec xhost]
    # the first line is info only
    foreach host [lrange [split $hosts \n] 1 end] {
	exec xhost -$host
    }
    exec xhost -
    tk_messageBox -title "Xhost secured" -message "Xhost secured" -icon info
}

## ::tkcon::FindBox - creates minimal dialog interface to ::tkcon::Find
# ARGS:	w	- text widget
#	str	- optional seed string for ::tkcon::PRIV(find)
##
proc ::tkcon::FindBox {w {str {}}} {
    variable PRIV

    set base $PRIV(base).find
    if {![winfo exists $base]} {
	toplevel $base
	wm withdraw $base
	catch {wm attributes $base -type dialog}
	wm title $base "tkcon Find"
	wm resizable $base 1 0

	label $base.l -text "Find:" -anchor e
	entry $base.e -textvariable ::tkcon::PRIV(find)

	checkbutton $base.case -text "Case Sensitive" \
	    -variable ::tkcon::PRIV(find,case)
	checkbutton $base.re -text "Use Regexp" \
	    -variable ::tkcon::PRIV(find,reg)

	frame $base.sep -borderwidth 1 -relief sunken -height 2
	frame $base.btn
	grid $base.l $base.e - - -sticky ew
	grid $base.case - $base.re -sticky ew
	grid $base.sep -columnspan 4 -sticky ew
	grid $base.btn -columnspan 4 -sticky ew
	grid columnconfigure $base 3 -weight 1

	button $base.btn.fnd -text "Find" -width 6
	button $base.btn.clr -text "Clear" -width 6
	button $base.btn.dis -text "Dismiss" -width 6
	eval grid [winfo children $base.btn] -padx 4 -pady 2 -sticky ew
	if {$PRIV(AQUA)} { # corner resize control space
	    grid columnconfigure $base.btn \
		[lindex [grid size $base.btn] 0] -minsize 16
	}

	focus $base.e

	bind $base.e <Return> [list $base.btn.fnd invoke]
	bind $base.e <Escape> [list $base.btn.dis invoke]
    }
    $base.btn.fnd config -command "::tkcon::Find [list $w] \$::tkcon::PRIV(find) \
	    -case \$::tkcon::PRIV(find,case) -reg \$::tkcon::PRIV(find,reg)"
    $base.btn.clr config -command "
    [list $w] tag remove find 1.0 end
    set ::tkcon::PRIV(find) {}
    "
    $base.btn.dis config -command "
    [list $w] tag remove find 1.0 end
    wm withdraw [list $base]
    "
    if {$str ne ""} {
	set PRIV(find) $str
	$base.btn.fnd invoke
    }

    if {[wm state $base] ne "normal"} {
	wm deiconify $base
    } else { raise $base }
    $base.e select range 0 end
}

## ::tkcon::Find - searches in text widget $w for $str and highlights it
## If $str is empty, it just deletes any highlighting
# ARGS: w	- text widget
#	str	- string to search for
#	-case	TCL_BOOLEAN	whether to be case sensitive	DEFAULT: 0
#	-regexp	TCL_BOOLEAN	whether to use $str as pattern	DEFAULT: 0
##
proc ::tkcon::Find {w str args} {
    $w tag remove find 1.0 end
    set truth {^(1|yes|true|on)$}
    set opts  {}
    foreach {key val} $args {
	switch -glob -- $key {
	    -c* { if {[regexp -nocase $truth $val]} { set case 1 } }
	    -r* { if {[regexp -nocase $truth $val]} { lappend opts -regexp } }
	    default { return -code error "Unknown option $key" }
	}
    }
    if {![info exists case]} { lappend opts -nocase }
    if {$str eq ""} { return }
    $w mark set findmark 1.0
    while {[set ix [eval $w search $opts -count numc -- \
			[list $str] findmark end]] ne ""} {
	$w tag add find $ix ${ix}+${numc}c
	$w mark set findmark ${ix}+1c
    }
    $w tag configure find -background $::tkcon::COLOR(blink)
    catch {$w see find.first}
    return [expr {[llength [$w tag ranges find]]/2}]
}

## ::tkcon::Attach - called to attach tkcon to an interpreter
# ARGS:	name	- application name to which tkcon sends commands
#		  This is either a slave interperter name or tk appname.
#	type	- (slave|interp) type of interpreter we're attaching to
#		  slave means it's a tkcon interpreter
#		  interp means we'll need to 'send' to it.
# Results:	::tkcon::EvalAttached is recreated to evaluate in the
#		appropriate interpreter
##
proc ::tkcon::Attach {{name <NONE>} {type slave} {ns {}}} {
    variable PRIV
    variable OPT
    variable ATTACH

    if {[llength [info level 0]] == 1} {
	# no args were specified, return the attach info instead
	return [AttachId]
    }
    set path [concat $PRIV(name) $OPT(exec)]

    set PRIV(displayWin) .
    if {$type eq "namespace"} {
	return [uplevel 1 ::tkcon::AttachNamespace $name]
    } elseif {[string match dpy:* $type]} {
	set PRIV(displayWin) [string range $type 4 end]
    } elseif {[string match sock* $type]} {
	global tcl_version
	if {[catch {eof $name} res]} {
	    return -code error "No known channel \"$name\""
	} elseif {$res} {
	    catch {close $name}
	    return -code error "Channel \"$name\" returned EOF"
	}
	set app $name
	set type socket
    } elseif {$name ne ""} {
	array set interps [Interps]
	if {[string match {[Mm]ain} [lindex $name 0]]} {
	    set name [lrange $name 1 end]
	}
	if {$name eq $path} {
	    set name {}
	    set app $path
	    set type slave
	} elseif {[info exists interps($name)]} {
	    if {$name eq ""} { set name Main; set app Main }
	    set type slave
	} elseif {[interp exists $name]} {
	    set name [concat $PRIV(name) $name]
	    set type slave
	} elseif {[interp exists [concat $OPT(exec) $name]]} {
	    set name [concat $path $name]
	    set type slave
	} elseif {[lsearch -exact [::send::interps] $name] > -1} {
	    if {[EvalSlave info exists tk_library] 
		&& $name eq [EvalSlave tk appname]} {
		set name {}
		set app $path
		set type slave
	    } elseif {[set i [lsearch -exact \
		    [Main set ::tkcon::PRIV(interps)] $name]] != -1} {
		set name [lindex [Main set ::tkcon::PRIV(slaves)] $i]
		if {[string match {[Mm]ain} $name]} { set app Main }
		set type slave
	    } else {
		set type interp
	    }
	} else {
	    return -code error "No known interpreter \"$name\""
	}
    } else {
	set app $path
    }
    if {![info exists app]} { set app $name }
    array set PRIV [list app $app appname $name apptype $type deadapp 0]

    ## ::tkcon::EvalAttached - evaluates the args in the attached interp
    ## args should be passed to this procedure as if they were being
    ## passed to the 'eval' procedure.  This procedure is dynamic to
    ## ensure evaluation occurs in the right interp.
    # ARGS:	args	- the command and args to evaluate
    ##
    set PRIV(namesp) ::
    set namespOK 0
    switch -glob -- $type {
	slave {
	    if {$name eq ""} {
		interp alias {} ::tkcon::EvalAttached {} \
			::tkcon::EvalSlave uplevel \#0
	    } elseif {$PRIV(app) eq "Main"} {
		interp alias {} ::tkcon::EvalAttached {} ::tkcon::Main
	    } elseif {$PRIV(name) eq $PRIV(app)} {
		interp alias {} ::tkcon::EvalAttached {} uplevel \#0
	    } else {
		interp alias {} ::tkcon::EvalAttached {} \
			::tkcon::Slave $::tkcon::PRIV(app)
	    }
	    set namespOK 1
	}
	sock* {
	    interp alias {} ::tkcon::EvalAttached {} \
		    ::tkcon::EvalSlave uplevel \#0
	    # The file event will just puts whatever data is found
	    # into the interpreter
	    fconfigure $name -buffering line -blocking 0
	    fileevent $name readable [list ::tkcon::EvalSocketEvent $name]
	}
	dpy:* -
	interp {
	    if {$OPT(nontcl)} {
		interp alias {} ::tkcon::EvalAttached {} ::tkcon::EvalSlave
	    } else {
		interp alias {} ::tkcon::EvalAttached {} ::tkcon::EvalSend
		set namespOK 1
	    }
	}
	default {
	    return -code error "[lindex [info level 0] 0] did not specify\
		    a valid type: must be slave or interp"
	}
    }
    if {$ns ne "" && $namespOK} {
	AttachNamespace $ns
    }
    return [AttachId]
}

proc ::tkcon::AttachId {} {
    # return Attach info in a form that Attach accepts again
    variable PRIV

    if {$PRIV(appname) eq ""} {
	variable OPT
	set appname [concat $PRIV(name) $OPT(exec)]
    } else {
	set appname $PRIV(appname)
    }
    set id [list $appname $PRIV(apptype)]
    # only display ns info if it isn't "::" as that is what is also
    # used to indicate no eval in namespace
    if {$PRIV(namesp) ne "::"} { lappend id $PRIV(namesp) }
    if {[info exists PRIV(console)]} {
	variable ATTACH
	set ATTACH($PRIV(console)) $id
    }
    return $id
}

## ::tkcon::AttachNamespace - called to attach tkcon to a namespace
# ARGS:	name	- namespace name in which tkcon should eval commands
# Results:	::tkcon::EvalAttached will be modified
##
proc ::tkcon::AttachNamespace { name } {
    variable PRIV
    variable OPT

    # We could enable 'socket' bound Tcl interps, but we'd have to create
    # a return listening socket
    if {($OPT(nontcl) && $PRIV(apptype) eq "interp")
	|| $PRIV(apptype) eq "socket"
	|| $PRIV(deadapp)} {
	return -code error "can't attach to namespace in attached environment"
    }
    if {$name eq "Main"} {set name ::}
    if {$name ne "" && [lsearch [Namespaces ::] $name] == -1} {
	return -code error "No known namespace \"$name\""
    }
    if {[regexp {^(|::)$} $name]} {
	## If name=={} || ::, we want the primary namespace
	set alias [interp alias {} ::tkcon::EvalAttached]
	if {[string match ::tkcon::EvalNamespace* $alias]} {
	    eval [list interp alias {} ::tkcon::EvalAttached {}] \
		    [lindex $alias 1]
	}
	set name ::
    } else {
	interp alias {} ::tkcon::EvalAttached {} ::tkcon::EvalNamespace \
		[interp alias {} ::tkcon::EvalAttached] [list $name]
    }
    set PRIV(namesp) $name
    return [AttachId]
}

## ::tkcon::NewSocket - called to create a socket to connect to
# ARGS:	none
# Results:	It will create a socket, and attach if requested
##
proc ::tkcon::NewSocket {} {
    variable PRIV

    set t $PRIV(base).newsock
    if {![winfo exists $t]} {
	toplevel $t
	wm withdraw $t
	catch {wm attributes $t -type dialog}
	wm title $t "tkcon Create Socket"
	wm resizable $t 1 0
	label $t.lhost -text "Host: "
	entry $t.host -width 16 -takefocus 1
	label $t.lport -text "Port: "
	entry $t.port -width 4 -takefocus 1
	button $t.ok -text "OK" -command {set ::tkcon::PRIV(grab) 1} -width 4 \
	    -takefocus 1
	bind $t.host <Return> [list focus $t.port]
	bind $t.port <Return> [list focus $t.ok]
	bind $t.ok   <Return> [list $t.ok invoke]
	grid $t.lhost $t.host $t.lport $t.port $t.ok -sticky ew
	grid configure $t.ok -padx 4 -pady 2
	grid columnconfig $t 1 -weight 1
	grid rowconfigure $t 1 -weight 1
	if {$PRIV(AQUA)} { # corner resize control space
	    grid columnconfigure $t [lindex [grid size $t] 0] -minsize 16
	}
	wm transient $t $PRIV(root)
	wm group $t $PRIV(root)
	wm geometry $t +[expr {([winfo screenwidth $t]-[winfo \
		reqwidth $t]) / 2}]+[expr {([winfo \
		screenheight $t]-[winfo reqheight $t]) / 2}]
	bind $t <Escape> [list destroy $t]
    }
    #$t.host delete 0 end
    #$t.port delete 0 end
    wm deiconify $t
    raise $t
    grab $t
    focus $t.host
    vwait ::tkcon::PRIV(grab)
    grab release $t
    wm withdraw $t
    set host [$t.host get]
    set port [$t.port get]
    if {$host == ""} { return }
    if {[catch {
	set sock [socket $host $port]
    } err]} {
	tk_messageBox -title "Socket Connection Error" \
		-message "Unable to connect to \"$host:$port\":\n$err" \
		-icon error -type ok
    } else {
	Attach $sock socket
    }
}

## ::tkcon::Load - sources a file into the console
## The file is actually sourced in the currently attached's interp
# ARGS:	fn	- (optional) filename to source in
# Returns:	selected filename ({} if nothing was selected)
## 
proc ::tkcon::Load { {fn ""} } {
    set types {
	{{Tcl Files}	{.tcl .tk}}
	{{Text Files}	{.txt}}
	{{All Files}	*}
    }
    # Allow for VFS directories, use Tk dialogs automatically when in
    # VFS-based areas
    set check [expr {$fn == "" ? [pwd] : $fn}]
    if {$::tcl_version >= 8.4 && [lindex [file system $check] 0] == "tclvfs"} {
	set opencmd [list ::tk::dialog::file:: open]
    } else {
	set opencmd [list tk_getOpenFile]
    }
    if {$fn eq "" &&
	([catch {tk_getOpenFile -filetypes $types \
		     -title "Source File"} fn] || $fn eq "")
    } { return }
    EvalAttached [list source $fn]
}

## ::tkcon::Save - saves the console or other widget buffer to a file
## This does not eval in a slave because it's not necessary
# ARGS:	w	- console text widget
# 	fn	- (optional) filename to save to
## 
proc ::tkcon::Save { {fn ""} {type ""} {opt ""} {mode w} } {
    variable PRIV

    if {![regexp -nocase {^(all|history|stdin|stdout|stderr|widget)$} $type]} {
	array set s { 0 All 1 History 2 Stdin 3 Stdout 4 Stderr 5 Cancel }
	## Allow user to specify what kind of stuff to save
	set type [tk_dialog $PRIV(base).savetype "Save Type" \
		"What part of the text do you want to save?" \
		questhead 0 $s(0) $s(1) $s(2) $s(3) $s(4) $s(5)]
	if {$type == 5 || $type == -1} return
	set type $s($type)
    }
    # Allow for VFS directories, use Tk dialogs automatically when in
    # VFS-based areas
    set check [expr {$opt == "" ? [pwd] : $opt}]
    if {$::tcl_version >= 8.4 && [lindex [file system $check] 0] == "tclvfs"} {
	set savecmd [list ::tk::dialog::file:: save]
    } else {
	set savecmd [list tk_getSaveFile]
    }
    if {$fn eq ""} {
	set types {
	    {{Tcl Files}	{.tcl .tk}}
	    {{Text Files}	{.txt}}
	    {{All Files}	*}
	}
	if {[catch {eval $savecmd [list -defaultextension .tcl \
				       -filetypes $types \
				       -title "Save $type"]} fn]
	     || $fn eq ""} return
    }
    set type [string tolower $type]
    switch $type {
	stdin -	stdout - stderr {
	    set data {}
	    foreach {first last} [$PRIV(console) tag ranges $type] {
		lappend data [$PRIV(console) get $first $last]
	    }
	    set data [join $data \n]
	}
	history		{ set data [tkcon history] }
	all - default	{ set data [$PRIV(console) get 1.0 end-1c] }
	widget		{
	    set data [$opt get 1.0 end-1c]
	}
    }
    if {[catch {open $fn $mode} fid]} {
	return -code error "Save Error: Unable to open '$fn' for writing\n$fid"
    }
    puts -nonewline $fid $data
    close $fid
}

## ::tkcon::MainInit
## This is only called for the main interpreter to include certain procs
## that we don't want to include (or rather, just alias) in slave interps.
##
proc ::tkcon::MainInit {} {
    variable PRIV
    variable OPT

    if {![info exists PRIV(slaves)]} {
	array set PRIV [list slave 0 slaves Main name {} \
		interps [list [tk appname]]]
    }
    interp alias {} ::tkcon::Main {} ::tkcon::InterpEval Main
    interp alias {} ::tkcon::Slave {} ::tkcon::InterpEval

    proc ::tkcon::GetSlave {{slave {}}} {
	set i 0
	while {[Slave $slave [list interp exists Slave[incr i]]]} {
	    # oh my god, an empty loop!
	}
	set interp [Slave $slave [list interp create Slave$i]]
	return $interp
    }

    ## ::tkcon::New - create new console window
    ## Creates a slave interpreter and sources in this script.
    ## All other interpreters also get a command to eval function in the
    ## new interpreter.
    ## 
    proc ::tkcon::New {} {
	variable PRIV
	global argv0 argc argv

	set tmp [GetSlave]
	lappend PRIV(slaves) $tmp
	load {} Tk $tmp
	# If we have tbcload, then that should be autoloaded into slaves.
	set idx [lsearch [info loaded] "* Tbcload"]
	if {$idx != -1} { catch {load {} Tbcload $tmp} }
	lappend PRIV(interps) [$tmp eval [list tk appname \
		"[tk appname] $tmp"]]
	if {[info exists argv0]} {$tmp eval [list set argv0 $argv0]}
	if {[info exists argc]}  {$tmp eval [list set argc $argc]}
	if {[info exists argv]}  {$tmp eval [list set argv $argv]}
	$tmp eval [list namespace eval ::tkcon {}]
	$tmp eval [list set ::tkcon::PRIV(name) $tmp]
	$tmp eval [list set ::tkcon::PRIV(SCRIPT) $::tkcon::PRIV(SCRIPT)]
	$tmp alias exit				::tkcon::Exit $tmp
	$tmp alias ::tkcon::Destroy		::tkcon::Destroy $tmp
	$tmp alias ::tkcon::New			::tkcon::New
	$tmp alias ::tkcon::GetSlave		::tkcon::GetSlave $tmp
	$tmp alias ::tkcon::Main		::tkcon::InterpEval Main
	$tmp alias ::tkcon::Slave		::tkcon::InterpEval
	$tmp alias ::tkcon::Interps		::tkcon::Interps
	$tmp alias ::tkcon::NewDisplay		::tkcon::NewDisplay
	$tmp alias ::tkcon::Display		::tkcon::Display
	$tmp alias ::tkcon::StateCheckpoint	::tkcon::StateCheckpoint
	$tmp alias ::tkcon::StateCleanup	::tkcon::StateCleanup
	$tmp alias ::tkcon::StateCompare	::tkcon::StateCompare
	$tmp alias ::tkcon::StateRevert		::tkcon::StateRevert
	$tmp eval {
	    if [catch {source -rsrc tkcon}] { source $::tkcon::PRIV(SCRIPT) }
	}
	return $tmp
    }

    ## ::tkcon::Exit - full exit OR destroy slave console
    ## This proc should only be called in the main interpreter from a slave.
    ## The master determines whether we do a full exit or just kill the slave.
    ## 
    proc ::tkcon::Exit {slave args} {
	variable PRIV
	variable OPT

	## Slave interpreter exit request
	if {$OPT(slaveexit) eq "exit" || [llength $PRIV(interps)] == 1} {
	    ## Only exit if it specifically is stated to do so, or this
	    ## is the last interp
	    uplevel 1 exit $args
	} else {
	    ## Otherwise we will delete the slave interp and associated data
	    Destroy $slave
	}
    }

    ## ::tkcon::Destroy - destroy console window
    ## This proc should only be called by the main interpreter.  If it is
    ## called from there, it will ask before exiting tkcon.  All others
    ## (slaves) will just have their slave interpreter deleted, closing them.
    ## 
    proc ::tkcon::Destroy {{slave {}}} {
	variable PRIV

	# Just close on the last one
	if {[llength $PRIV(interps)] == 1} { exit }
	if {"" == $slave} {
	    ## Main interpreter close request
	    if {[tk_messageBox -parent $PRIV(root) -title "Quit tkcon?" \
		     -message "Close all windows and exit tkcon?" \
		     -icon question -type yesno] == "yes"} { exit }
	    return
	} elseif {$slave == $::tkcon::OPT(exec)} {
	    set name  [tk appname]
	    set slave "Main"
	} else {
	    ## Slave interpreter close request
	    set name [InterpEval $slave]
	    interp delete $slave
	}
	set PRIV(interps) [lremove $PRIV(interps) [list $name]]
	set PRIV(slaves)  [lremove $PRIV(slaves) [list $slave]]
	StateCleanup $slave
    }

    if {$OPT(overrideexit)} {
	## We want to do a couple things before exiting...
	if {[catch {rename ::exit ::tkcon::FinalExit} err]} {
	    puts stderr "tkcon might panic:\n$err"
	}
	proc ::exit args {
	    if {$::tkcon::OPT(usehistory)} {
		if {[catch {::tkcon::SaveHistory} msg]} {
		    puts stderr "unable to save history file:\n$msg"
		    # pause a moment, because we are about to die finally...
		    after 1000
		}
	    }
	    uplevel 1 ::tkcon::FinalExit $args
	}
    }

    ## ::tkcon::SaveHistory - saves history to history file
    ## If the history file is not writable it raises an error
    proc ::tkcon::SaveHistory {} {
	if {$::tkcon::OPT(usehistory)} {
	    if {[catch {open $::tkcon::PRIV(histfile) w} fid]} {
		error $fid
	    } else {
		set max [::tkcon::EvalSlave history nextid]
		set id [expr {$max - $::tkcon::OPT(history)}]
		if {$id < 1} { set id 1 }
		## FIX: This puts history in backwards!!
		while {($id < $max) && ![catch \
			{::tkcon::EvalSlave history event $id} cmd]} {
		    if {$cmd ne ""} {
			puts $fid "::tkcon::EvalSlave\
			    history add [list $cmd]"
			}
		    incr id
		}
		close $fid
	    }
	}
    }
    
    ## ::tkcon::InterpEval - passes evaluation to another named interpreter
    ## If the interpreter is named, but no args are given, it returns the
    ## [tk appname] of that interps master (not the associated eval slave).
    ##
    proc ::tkcon::InterpEval {{slave {}} args} {
	variable PRIV

	if {[llength [info level 0]] == 1} {
	    # no args given
	    return $PRIV(slaves)
	} elseif {[string match {[Mm]ain} $slave]} {
	    set slave {}
	}
	if {[llength $args]} {
	    return [interp eval $slave uplevel \#0 $args]
	} else {
	    # beware safe interps with Tk
	    if {[interp eval $slave {llength [info commands tk]}]} {
		if {[catch {interp eval $slave tk appname} name]} {
		    return "safetk"
		}
		return $name
	    }
	}
    }

    proc ::tkcon::Interps {{ls {}} {interp {}}} {
	if {$interp eq ""} {
	    lappend ls {} [tk appname]
	}
	foreach i [interp slaves $interp] {
	    if {$interp ne ""} { set i "$interp $i" }
	    if {[interp eval $i package provide Tk] ne ""} {
		# beware safe interps with Tk
		if {[catch {interp eval $i tk appname} name]} {
		    set name {}
		}
		lappend ls $i $name
	    } else {
		lappend ls $i {}
	    }
	    set ls [Interps $ls $i]
	}
	return $ls
    }

    proc ::tkcon::Display {{disp {}}} {
	variable DISP

	set res {}
	if {$disp != ""} {
	    if {![info exists DISP($disp)]} { return }
	    return [list $DISP($disp) [winfo interps -displayof $DISP($disp)]]
	}
	return [lsort -dictionary [array names DISP]]
    }

    proc ::tkcon::NewDisplay {} {
	variable PRIV
	variable DISP

	set t $PRIV(base).newdisp
	if {![winfo exists $t]} {
	    toplevel $t
	    wm withdraw $t
	    catch {wm attributes $t -type dialog}
	    wm title $t "tkcon Attach to Display"
	    label $t.gets -text "New Display: "
	    entry $t.data -width 32
	    button $t.ok -text "OK" -command {set ::tkcon::PRIV(grab) 1}
	    bind $t.data <Return> [list $t.ok invoke]
	    bind $t.ok   <Return> [list $t.ok invoke]
	    grid $t.gets $t.data -sticky ew
	    grid $t.ok   -	 -sticky ew
	    grid columnconfig $t 1 -weight 1
	    grid rowconfigure $t 1 -weight 1
	    wm transient $t $PRIV(root)
	    wm geometry $t +[expr {([winfo screenwidth $t]-[winfo \
		    reqwidth $t]) / 2}]+[expr {([winfo \
		    screenheight $t]-[winfo reqheight $t]) / 2}]
	}
	$t.data delete 0 end
	wm deiconify $t
	raise $t
	grab $t
	focus $t.data
	vwait ::tkcon::PRIV(grab)
	grab release $t
	wm withdraw $t
	set disp [$t.data get]
	if {$disp == ""} { return }
	regsub -all {\.} [string tolower $disp] ! dt
	set dt $PRIV(base).$dt
	destroy $dt
	if {[catch {
	    toplevel $dt -screen $disp
	    set interps [winfo interps -displayof $dt]
	    if {![llength $interps]} {
		error "No other Tk interpreters on $disp"
	    }
	    ::send::send -displayof $dt [lindex $interps 0] [list info tclversion]
	} err]} {
	    global env
	    if {[info exists env(DISPLAY)]} {
		set myd $env(DISPLAY)
	    } else {
		set myd "myDisplay:0"
	    }
	    tk_messageBox -title "Display Connection Error" \
		    -message "Unable to connect to \"$disp\":\n$err\
		    \nMake sure you have xauth-based permissions\
		    (xauth add $myd . `mcookie`), and xhost is disabled\
		    (xhost -) on \"$disp\"" \
		    -icon error -type ok
	    destroy $dt
	    return
	}
	set DISP($disp) $dt
	wm withdraw $dt
	bind $dt <Destroy> [subst {catch {unset ::tkcon::DISP($disp)}}]
	tk_messageBox -title "$disp Connection" \
		-message "Connected to \"$disp\", found:\n[join $interps \n]" \
		-type ok
    }

    ##
    ## The following state checkpoint/revert procedures are very sketchy
    ## and prone to problems.  They do not track modifications to currently
    ## existing procedures/variables, and they can really screw things up
    ## if you load in libraries (especially Tk) between checkpoint and
    ## revert.  Only with this knowledge in mind should you use these.
    ##

    ## ::tkcon::StateCheckpoint - checkpoints the current state of the system
    ## This allows you to return to this state with ::tkcon::StateRevert
    # ARGS:
    ##
    proc ::tkcon::StateCheckpoint {app type} {
	variable CPS
	variable PRIV

	if {[info exists CPS($type,$app,cmd)] && \
		[tk_dialog $PRIV(base).warning "Overwrite Previous State?" \
		"Are you sure you want to lose previously checkpointed\
		state of $type \"$app\"?" questhead 1 "Do It" "Cancel"]} return
	set CPS($type,$app,cmd) [EvalOther $app $type info commands *]
	set CPS($type,$app,var) [EvalOther $app $type info vars *]
	return
    }

    ## ::tkcon::StateCompare - compare two states and output difference
    # ARGS:
    ##
    proc ::tkcon::StateCompare {app type {verbose 0}} {
	variable CPS
	variable PRIV
	variable OPT
	variable COLOR

	if {![info exists CPS($type,$app,cmd)]} {
	    return -code error \
		    "No previously checkpointed state for $type \"$app\""
	}
	set w $PRIV(base).compare
	if {[winfo exists $w]} {
	    $w.text config -state normal
	    $w.text delete 1.0 end
	} else {
	    toplevel $w
	    catch {wm attributes $w -type dialog}
	    frame $w.btn
	    scrollbar $w.sy -command [list $w.text yview]
	    text $w.text -yscrollcommand [list $w.sy set] -height 12 \
		    -foreground $COLOR(stdin) \
		    -background $COLOR(bg) \
		    -insertbackground $COLOR(cursor) \
		    -font $OPT(font) -borderwidth 1 -highlightthickness 0
	    $w.text tag config red -foreground red
	    button $w.close -text "Dismiss" -width 8 \
		-command [list destroy $w]
	    button $w.check  -text "Recheckpoint" -width 11
	    button $w.revert -text "Revert" -width 8
	    button $w.expand -text "Verbose" -width 8
	    button $w.update -text "Update" -width 8

	    grid $w.text - - - - - $w.sy -sticky news
	    grid x $w.check $w.revert $w.expand $w.update $w.close
	    grid configure $w.close -padx {4 0}
	    grid rowconfigure $w 0 -weight 1
	    grid columnconfigure $w 0 -weight 1
	}
	wm title $w "Compare State: $type [list $app]"

	$w.check config \
		-command "::tkcon::StateCheckpoint [list $app] $type; \
		::tkcon::StateCompare [list $app] $type $verbose"
	$w.revert config \
		-command "::tkcon::StateRevert [list $app] $type; \
		::tkcon::StateCompare [list $app] $type $verbose"
	$w.update config -command [info level 0]
	if {$verbose} {
	    $w.expand config -text Brief \
		    -command [list ::tkcon::StateCompare $app $type 0]
	} else {
	    $w.expand config -text Verbose \
		    -command [list ::tkcon::StateCompare $app $type 1]
	}
	## Don't allow verbose mode unless 'dump' exists in $app
	## We're assuming this is tkcon's dump command
	set hasdump [llength [EvalOther $app $type info commands dump]]
	if {$hasdump} {
	    $w.expand config -state normal
	} else {
	    $w.expand config -state disabled
	}

	set cmds [lremove [EvalOther $app $type info commands *] \
		$CPS($type,$app,cmd)]
	set vars [lremove [EvalOther $app $type info vars *] \
		$CPS($type,$app,var)]

	if {$hasdump && $verbose} {
	    set cmds [EvalOther $app $type eval dump c -nocomplain $cmds]
	    set vars [EvalOther $app $type eval dump v -nocomplain $vars]
	}
	$w.text insert 1.0 "NEW COMMANDS IN \"$app\":\n" red \
		$cmds {} "\n\nNEW VARIABLES IN \"$app\":\n" red $vars {}

	raise $w
	$w.text config -state disabled
    }

    ## ::tkcon::StateRevert - reverts interpreter to previous state
    # ARGS:
    ##
    proc ::tkcon::StateRevert {app type} {
	variable CPS
	variable PRIV

	if {![info exists CPS($type,$app,cmd)]} {
	    return -code error \
		    "No previously checkpointed state for $type \"$app\""
	}
	if {![tk_dialog $PRIV(base).warning "Revert State?" \
		"Are you sure you want to revert the state in $type \"$app\"?"\
		questhead 1 "Do It" "Cancel"]} {
	    foreach i [lremove [EvalOther $app $type info commands *] \
		    $CPS($type,$app,cmd)] {
		catch {EvalOther $app $type rename $i {}}
	    }
	    foreach i [lremove [EvalOther $app $type info vars *] \
		    $CPS($type,$app,var)] {
		catch {EvalOther $app $type unset $i}
	    }
	}
    }

    ## ::tkcon::StateCleanup - cleans up state information in master array
    #
    ##
    proc ::tkcon::StateCleanup {args} {
	variable CPS

	if {![llength $args]} {
	    foreach state [array names CPS slave,*] {
		if {![interp exists [string range $state 6 end]]} {
		    unset CPS($state)
		}
	    }
	} else {
	    set app  [lindex $args 0]
	    set type [lindex $args 1]
	    if {[regexp {^(|slave)$} $type]} {
		foreach state [array names CPS "slave,$app\[, \]*"] {
		    if {![interp exists [string range $state 6 end]]} {
			unset CPS($state)
		    }
		}
	    } else {
		catch {unset CPS($type,$app)}
	    }
	}
    }
}

## ::tkcon::Event - get history event, search if string != {}
## look forward (next) if $int>0, otherwise look back (prev)
# ARGS:	W	- console widget
##
proc ::tkcon::Event {int {str {}}} {
    if {!$int} return

    variable PRIV
    set w $PRIV(console)

    set nextid [EvalSlave history nextid]
    if {$str ne ""} {
	## String is not empty, do an event search
	set event $PRIV(event)
	if {$int < 0 && $event == $nextid} { set PRIV(cmdbuf) $str }
	set len [string len $PRIV(cmdbuf)]
	incr len -1
	if {$int > 0} {
	    ## Search history forward
	    while {$event < $nextid} {
		if {[incr event] == $nextid} {
		    $w delete limit end
		    $w insert limit $PRIV(cmdbuf)
		    break
		} elseif {
		    ![catch {EvalSlave history event $event} res] &&
		    [set p [string first $PRIV(cmdbuf) $res]] > -1
		} {
		    set p2 [expr {$p + [string length $PRIV(cmdbuf)]}]
		    $w delete limit end
		    $w insert limit $res
		    Blink $w "limit + $p c" "limit + $p2 c"
		    break
		}
	    }
	    set PRIV(event) $event
	} else {
	    ## Search history reverse
	    while {![catch {EvalSlave history event [incr event -1]} res]} {
		if {[set p [string first $PRIV(cmdbuf) $res]] > -1} {
		    set p2 [expr {$p + [string length $PRIV(cmdbuf)]}]
		    $w delete limit end
		    $w insert limit $res
		    set PRIV(event) $event
		    Blink $w "limit + $p c" "limit + $p2 c"
		    break
		}
	    }
	}
    } else {
	## String is empty, just get next/prev event
	if {$int > 0} {
	    ## Goto next command in history
	    if {$PRIV(event) < $nextid} {
		$w delete limit end
		if {[incr PRIV(event)] == $nextid} {
		    $w insert limit $PRIV(cmdbuf)
		} else {
		    $w insert limit [EvalSlave history event $PRIV(event)]
		}
	    }
	} else {
	    ## Goto previous command in history
	    if {$PRIV(event) == $nextid} {
		set PRIV(cmdbuf) [CmdGet $w]
	    }
	    if {[catch {EvalSlave history event [incr PRIV(event) -1]} res]} {
		incr PRIV(event)
	    } else {
		$w delete limit end
		$w insert limit $res
	    }
	}
    }
    $w mark set insert end
    $w see end
}

## ::tkcon::Highlight - magic highlighting
## beware: voodoo included
# ARGS:
##
proc ::tkcon::Highlight {w type} {
    variable COLOR
    variable OPT

    switch -exact $type {
	"error" { HighlightError $w }
	"tcl" - "test" {
	    if {[winfo class $w] != "Ctext"} { return }

	    foreach {app type} [tkcon attach] {break}
	    set cmds [::tkcon::EvalOther $app $type info commands]

	    set classes [list \
		 [list comment ClassForRegexp "^\\s*#\[^\n\]*" $COLOR(stderr)] \
		 [list var     ClassWithOnlyCharStart "\$" $COLOR(stdout)] \
		 [list syntax  ClassForSpecialChars "\[\]{}\"" $COLOR(prompt)] \
		 [list command Class $cmds $COLOR(proc)] \
		]

	    # Remove all highlight classes from a widget
	    ctext::clearHighlightClasses $w
	    foreach class $classes {
		foreach {cname ctype cptn ccol} $class break
		ctext::addHighlight$ctype $w $cname $ccol $cptn
	    }
	    $w highlight 1.0 end
	}
    }
}

## ::tkcon::HighlightError - magic error highlighting
## beware: voodoo included
# ARGS:
##
proc ::tkcon::HighlightError w {
    variable COLOR
    variable OPT

    ## do voodoo here
    set app [Attach]
    # we have to pull the text out, because text regexps are screwed on \n's.
    set info [$w get 1.0 end-1c]
    # Check for specific line error in a proc
    set exp(proc) "\"(\[^\"\]+)\"\n\[\t \]+\\\(procedure \"(\[^\"\]+)\""
    # Check for too few args to a proc
    set exp(param) "parameter \"(\[^\"\]+)\" to \"(\[^\"\]+)\""
    set start 1.0
    while {
	[regexp -indices -- $exp(proc) $info junk what cmd] ||
	[regexp -indices -- $exp(param) $info junk what cmd]
    } {
	foreach {w0 w1} $what {c0 c1} $cmd {break}
	set what [string range $info $w0 $w1]
	set cmd  [string range $info $c0 $c1]
	if {[string match *::* $cmd]} {
	    set res [uplevel 1 ::tkcon::EvalOther $app namespace eval \
		    [list [namespace qualifiers $cmd] \
		    [list info procs [namespace tail $cmd]]]]
	} else {
	    set res [uplevel 1 ::tkcon::EvalOther $app info procs [list $cmd]]
	}
	if {[llength $res]==1} {
	    set tag [UniqueTag $w]
	    $w tag add $tag $start+${c0}c $start+1c+${c1}c
	    $w tag configure $tag -foreground $COLOR(stdout)
	    $w tag bind $tag <Enter> [list $w tag configure $tag -underline 1]
	    $w tag bind $tag <Leave> [list $w tag configure $tag -underline 0]
	    $w tag bind $tag <ButtonRelease-1> "if {!\$tk::Priv(mouseMoved)} \
		    {[list $OPT(edit) -attach $app -type proc -find $what -- $cmd]}"
	}
	set info [string range $info $c1 end]
	set start [$w index $start+${c1}c]
    }
    ## Next stage, check for procs that start a line
    set start 1.0
    set exp(cmd) "^\"\[^\" \t\n\]+"
    while {
	[string compare {} [set ix \
		[$w search -regexp -count numc -- $exp(cmd) $start end]]]
    } {
	set start [$w index $ix+${numc}c]
	# +1c to avoid the first quote
	set cmd [$w get $ix+1c $start]
	if {[string match *::* $cmd]} {
	    set res [uplevel 1 ::tkcon::EvalOther $app namespace eval \
		    [list [namespace qualifiers $cmd] \
		    [list info procs [namespace tail $cmd]]]]
	} else {
	    set res [uplevel 1 ::tkcon::EvalOther $app info procs [list $cmd]]
	}
	if {[llength $res]==1} {
	    set tag [UniqueTag $w]
	    $w tag add $tag $ix+1c $start
	    $w tag configure $tag -foreground $COLOR(proc)
	    $w tag bind $tag <Enter> [list $w tag configure $tag -underline 1]
	    $w tag bind $tag <Leave> [list $w tag configure $tag -underline 0]
	    $w tag bind $tag <ButtonRelease-1> "if {!\$tk::Priv(mouseMoved)} \
		    {[list $OPT(edit) -attach $app -type proc -- $cmd]}"
	}
    }
}

proc ::tkcon::ExpectInit {{termcap 1} {terminfo 1}} {
    global env

    if {$termcap} {
	set env(TERM) "tt"
	set env(TERMCAP) {tt:
 :ks=\E[KS:
 :ke=\E[KE:
 :cm=\E[%d;%dH:
 :up=\E[A:
 :nd=\E[C:
 :cl=\E[H\E[J:
 :do=^J:
 :so=\E[7m:
 :se=\E[m:
 :k1=\EOP:
 :k2=\EOQ:
 :k3=\EOR:
 :k4=\EOS:
 :k5=\EOT:
 :k6=\EOU:
 :k7=\EOV:
 :k8=\EOW:
 :k9=\EOX:
    }
    }

    if {$terminfo} {
	set env(TERM) "tkterm"
	if {![info exists env(TEMP)]} { set env(TEMP) /tmp }
	set env(TERMINFO) $env(TEMP)

	set ttsrc [file join $env(TEMP) tt.src]
	set file [open $ttsrc w]
	puts $file {tkterm|Don Libes' tk text widget terminal emulator,
 smkx=\E[KS,
 rmkx=\E[KE,
 cup=\E[%p1%d;%p2%dH,
 cuu1=\E[A,
 cuf1=\E[C,
 clear=\E[H\E[J,
 ind=\n,
 cr=\r,
 smso=\E[7m,
 rmso=\E[m,
 kf1=\EOP,
 kf2=\EOQ,
 kf3=\EOR,
 kf4=\EOS,
 kf5=\EOT,
 kf6=\EOU,
 kf7=\EOV,
 kf8=\EOW,
 kf9=\EOX,
    }
	close $file

	if {[catch {exec tic $ttsrc} msg]} {
	    return -code error \
		"tic failed, you may not have terminfo support:\n$msg"
	}

	file delete $ttsrc
    }
}

# term_exit is called if the spawned process exits
proc ::tkcon::term_exit {w} {
    variable EXP
    catch {exp_close -i $EXP(spawn_id)}
    set EXP(forever) 1
    unset EXP
}

# term_chars_changed is called after every change to the displayed chars
# You can use if you want matches to occur in the background (a la bind)
# If you want to test synchronously, then just do so - you don't need to
# redefine this procedure.
proc ::tkcon::term_chars_changed {w args} {
}

# term_cursor_changed is called after the cursor is moved
proc ::tkcon::term_cursor_changed {w args} {
}

proc ::tkcon::term_update_cursor {w args} {
    variable OPT
    variable EXP

    $w mark set insert $EXP(row).$EXP(col)
    $w see insert
    term_cursor_changed $w
}

proc ::tkcon::term_clear {w args} {
    $w delete 1.0 end
    term_init $w
}

proc ::tkcon::term_init {w args} {
    variable OPT
    variable EXP

    # initialize it with blanks to make insertions later more easily
    set blankline [string repeat " " $OPT(cols)]\n
    for {set i 1} {$i <= $OPT(rows)} {incr i} {
	$w insert $i.0 $blankline
    }

    set EXP(row) 1
    set EXP(col) 0

    $w mark set insert $EXP(row).$EXP(col)
}

proc ::tkcon::term_down {w args} {
    variable OPT
    variable EXP

    if {$EXP(row) < $OPT(rows)} {
	incr EXP(row)
    } else {
	# already at last line of term, so scroll screen up
	$w delete 1.0 2.0

	# recreate line at end
	$w insert end [string repeat " " $OPT(cols)]\n
    }
}

proc ::tkcon::term_insert {w s} {
    variable OPT
    variable EXP

    set chars_rem_to_write [string length $s]
    set space_rem_on_line  [expr {$OPT(cols) - $EXP(col)}]

    set tag_action [expr {$EXP(standout) ? "add" : "remove"}]

    ##################
    # write first line
    ##################

    if {$chars_rem_to_write > $space_rem_on_line} {
	set chars_to_write $space_rem_on_line
	set newline 1
    } else {
	set chars_to_write $chars_rem_to_write
	set newline 0
    }

    $w delete $EXP(row).$EXP(col) \
	$EXP(row).[expr {$EXP(col) + $chars_to_write}]
    $w insert $EXP(row).$EXP(col) \
	[string range $s 0 [expr {$space_rem_on_line-1}]]

    $w tag $tag_action standout $EXP(row).$EXP(col) \
	$EXP(row).[expr {$EXP(col) + $chars_to_write}]

    # discard first line already written
    incr chars_rem_to_write -$chars_to_write
    set s [string range $s $chars_to_write end]

    # update EXP(col)
    incr EXP(col) $chars_to_write
    # update EXP(row)
    if {$newline} { term_down $w }

    ##################
    # write full lines
    ##################
    while {$chars_rem_to_write >= $OPT(cols)} {
	$w delete $EXP(row).0 $EXP(row).end
	$w insert $EXP(row).0 [string range $s 0 [expr {$OPT(cols)-1}]]
	$w tag $tag_action standout $EXP(row).0 $EXP(row).end

	# discard line from buffer
	set s [string range $s $OPT(cols) end]
	incr chars_rem_to_write -$OPT(cols)

	set EXP(col) 0
	term_down $w
    }

    #################
    # write last line
    #################

    if {$chars_rem_to_write} {
	$w delete $EXP(row).0 $EXP(row).$chars_rem_to_write
	$w insert $EXP(row).0 $s
	$w tag $tag_action standout $EXP(row).0 $EXP(row).$chars_rem_to_write
	set EXP(col) $chars_rem_to_write
    }

    term_chars_changed $w
}

proc ::tkcon::Expect {cmd} {
    variable OPT
    variable PRIV
    variable EXP

    set EXP(standout) 0
    set EXP(row) 0
    set EXP(col) 0

    set env(LINES)   $OPT(rows)
    set env(COLUMNS) $OPT(cols)

    ExpectInit
    log_user 0
    set ::stty_init "-tabs"
    uplevel \#0 [linsert $cmd 0 spawn]
    set EXP(spawn_id) $::spawn_id
    if {[info exists ::spawn_out(slave,name)]} {
	set EXP(slave,name) $::spawn_out(slave,name)
	catch {stty rows $OPT(rows) columns $OPT(cols) < $::spawn_out(slave,name)}
    }
    if {[string index $cmd end] == "&"} {
	set cmd expect_background
    } else {
	set cmd expect
    }
    bind $PRIV(console) <Meta-KeyPress> {
	if {"%A" != ""} {
	    exp_send -i $::tkcon::EXP(spawn_id) "\033%A"
	    break
	}
    }
    bind $PRIV(console) <KeyPress> {
	exp_send -i $::tkcon::EXP(spawn_id) -- %A
	break
    }
    bind $PRIV(console) <Control-space>	{exp_send -null}
    set code [catch {
	term_init $PRIV(console)
	while {[info exists EXP(spawn_id)]} {
	$cmd {
	    -i $::tkcon::EXP(spawn_id)
	    -re "^\[^\x01-\x1f\]+" {
		# Text
		::tkcon::term_insert $::tkcon::PRIV(console) \
		    $expect_out(0,string)
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\r" {
		# (cr,) Go to beginning of line
		update idle
		set ::tkcon::EXP(col) 0
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\n" {
		# (ind,do) Move cursor down one line
		if {$::tcl_platform(platform) eq "windows"} {
		    # Windows seems to get the LF without the CR
		    update idle
		    set ::tkcon::EXP(col) 0
		}
		::tkcon::term_down $::tkcon::PRIV(console)
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\b" {
		# Backspace nondestructively
		incr ::tkcon::EXP(col) -1
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\a" {
		bell
	    } "^\t" {
		# Tab, shouldn't happen
		send_error "got a tab!?"
	    } eof {
		::tkcon::term_exit $::tkcon::PRIV(console)
	    } "^\x1b\\\[A" {
		# Cursor Up (cuu1,up)
		incr ::tkcon::EXP(row) -1
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\x1b\\\[B" {
		# Cursor Down
		incr ::tkcon::EXP(row)
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\x1b\\\[C" {
		# Cursor Right (cuf1,nd)
		incr ::tkcon::EXP(col)
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\x1b\\\[D" {
		# Cursor Left
		incr ::tkcon::EXP(col)
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\x1b\\\[H" {
		# Cursor Home
	    } -re "^\x1b\\\[(\[0-9\]*);(\[0-9\]*)H" {
		# (cup,cm) Move to row y col x
		set ::tkcon::EXP(row) [expr {$expect_out(1,string)+1}]
		set ::tkcon::EXP(col) $expect_out(2,string)
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\x1b\\\[H\x1b\\\[J" {
		# (clear,cl) Clear screen
		::tkcon::term_clear $::tkcon::PRIV(console)
		::tkcon::term_update_cursor $::tkcon::PRIV(console)
	    } "^\x1b\\\[7m" {
		# (smso,so) Begin standout mode
		set ::tkcon::EXP(standout) 1
	    } "^\x1b\\\[m" {
		# (rmso,se) End standout mode
		set ::tkcon::EXP(standout) 0
	    } "^\x1b\\\[KS" {
		# (smkx,ks) start keyboard-transmit mode
		# terminfo invokes these when going in/out of graphics mode
		# In graphics mode, we should have no scrollbars
		#graphicsSet 1
	    } "^\x1b\\\[KE" {
		# (rmkx,ke) end keyboard-transmit mode
		# Out of graphics mode, we should have scrollbars
		#graphicsSet 0
	    }
	}
	}
	#vwait ::tkcon::EXP(forever)
    } err]
    bind $PRIV(console) <Meta-KeyPress> {}
    bind $PRIV(console) <KeyPress>      {}
    bind $PRIV(console) <Control-space>	{}
    catch {unset EXP}
    if {$code} {
	return -code $code -errorinfo $::errorInfo $err
    }
}

## tkcon - command that allows control over the console
## This always exists in the main interpreter, and is aliased into
## other connected interpreters
# ARGS:	totally variable, see internal comments
## 
proc tkcon {cmd args} {
    variable ::tkcon::PRIV
    variable ::tkcon::OPT
    global errorInfo

    switch -glob -- $cmd {
	buf* {
	    ## 'buffer' Sets/Query the buffer size
	    if {[llength $args]} {
		if {[regexp {^[1-9][0-9]*$} $args]} {
		    set OPT(buffer) $args
		    # catch in case the console doesn't exist yet
		    catch {::tkcon::ConstrainBuffer $PRIV(console) \
			    $OPT(buffer)}
		} else {
		    return -code error "buffer must be a valid integer"
		}
	    }
	    return $OPT(buffer)
	}
	linelen* {
	    ## 'linelength' Sets/Query the maximum line length
	    if {[llength $args]} {
		if {[regexp {^-?[0-9]+$} $args]} {
		    # ignored for now
		} else {
		    return -code error "buffer must be a valid integer"
		}
	    }
	    return 2044
	}
	bg* {
	    ## 'bgerror' Brings up an error dialog
	    set errorInfo [lindex $args 1]
	    bgerror [lindex $args 0]
	}
	cl* {
	    ## 'close' Closes the console
	    ::tkcon::Destroy
	}
	cons* {
	    ## 'console' - passes the args to the text widget of the console.
	    set result [uplevel 1 $PRIV(console) $args]
	    ::tkcon::ConstrainBuffer $PRIV(console) $OPT(buffer)
	    return $result
	}
	congets {
	    ## 'congets' a replacement for [gets stdin]
	    # Use the 'gets' alias of 'tkcon_gets' command instead of
	    # calling the *get* methods directly for best compatability
	    if {[llength $args]} {
		return -code error "wrong # args: must be \"tkcon congets\""
	    }
	    tkcon show
	    set old [bind TkConsole <<TkCon_Eval>>]
	    bind TkConsole <<TkCon_Eval>> { set ::tkcon::PRIV(wait) 0 }
	    set w $PRIV(console)
	    # Make sure to move the limit to get the right data
	    $w mark set limit end-1c
	    $w mark gravity limit left
	    $w mark set insert end
	    $w see end
	    vwait ::tkcon::PRIV(wait)
	    set line [::tkcon::CmdGet $w]
	    $w insert end \n
	    bind TkConsole <<TkCon_Eval>> $old
	    return $line
	}
	exp* {
	    ::tkcon::Expect [lindex $args 0]
	}
	getc* {
	    ## 'getcommand' a replacement for [gets stdin]
	    ## This forces a complete command to be input though
	    if {[llength $args]} {
		return -code error "wrong # args: must be \"tkcon getcommand\""
	    }
	    tkcon show
	    set old [bind TkConsole <<TkCon_Eval>>]
	    bind TkConsole <<TkCon_Eval>> { set ::tkcon::PRIV(wait) 0 }
	    set w $PRIV(console)
	    # Make sure to move the limit to get the right data
	    $w mark set insert end
	    $w mark set limit insert
	    $w see end
	    vwait ::tkcon::PRIV(wait)
	    set line [::tkcon::CmdGet $w]
	    $w insert end \n
	    while {![info complete $line] || [regexp {[^\\]\\$} $line]} {
		vwait ::tkcon::PRIV(wait)
		set line [::tkcon::CmdGet $w]
		$w insert end \n
		$w see end
	    }
	    bind TkConsole <<TkCon_Eval>> $old
	    return $line
	}
	get - gets {
	    ## 'gets' - a replacement for [gets stdin]
	    ## This pops up a text widget to be used for stdin (local grabbed)
	    if {[llength $args]} {
		return -code error "wrong # args: should be \"tkcon gets\""
	    }
	    set t $PRIV(base).gets
	    if {![winfo exists $t]} {
		toplevel $t
		wm withdraw $t
		catch {wm attributes $t -type dialog}
		wm title $t "tkcon gets stdin request"
		label $t.gets -text "\"gets stdin\" request:"
		text $t.data -width 32 -height 5 -wrap none \
			-xscrollcommand [list $t.sx set] \
			-yscrollcommand [list $t.sy set] -borderwidth 1
		scrollbar $t.sx -orient h -takefocus 0 -highlightthickness 0 \
			-command [list $t.data xview]
		scrollbar $t.sy -orient v -takefocus 0 -highlightthickness 0 \
			-command [list $t.data yview]
		button $t.ok -text "OK" -command {set ::tkcon::PRIV(grab) 1}
		bind $t.ok <Return> { %W invoke }
		grid $t.gets -		-sticky ew
		grid $t.data $t.sy	-sticky news
		grid $t.sx		-sticky ew
		grid $t.ok   -		-sticky ew
		grid columnconfig $t 0 -weight 1
		grid rowconfig    $t 1 -weight 1
		wm transient $t $PRIV(root)
		wm geometry $t +[expr {([winfo screenwidth $t]-[winfo \
			reqwidth $t]) / 2}]+[expr {([winfo \
			screenheight $t]-[winfo reqheight $t]) / 2}]
	    }
	    $t.data delete 1.0 end
	    wm deiconify $t
	    raise $t
	    grab $t
	    focus $t.data
	    vwait ::tkcon::PRIV(grab)
	    grab release $t
	    wm withdraw $t
	    return [$t.data get 1.0 end-1c]
	}
	err* {
	    ## Outputs stack caused by last error.
	    ## error handling with pizazz (but with pizza would be nice too)
	    if {[llength $args]==2} {
		set app  [lindex $args 0]
		set type [lindex $args 1]
		if {[catch {::tkcon::EvalOther $app $type set errorInfo} info]} {
		    set info "error getting info from $type $app:\n$info"
		}
	    } else {
		set info $PRIV(errorInfo)
	    }
	    if {[string match {} $info]} { set info "errorInfo empty" }
	    ## If args is empty, the -attach switch just ignores it
	    $OPT(edit) -attach $args -type error -- $info
	}
	fi* {
	    ## 'find' string
	    ::tkcon::Find $PRIV(console) $args
	}
	fo* {
	    ## 'font' ?fontname? - gets/sets the font of the console
	    if {[llength $args]} {
		if {[info exists PRIV(console)] && \
			[winfo exists $PRIV(console)]} {
		    $PRIV(console) config -font $args
		    set OPT(font) [$PRIV(console) cget -font]
		} else {
		    set OPT(font) $args
		}
	    }
	    return $OPT(font)
	}
	hid* - with* {
	    ## 'hide' 'withdraw' - hides the console.
	    if {[info exists PRIV(root)] && [winfo exists $PRIV(root)]} {
		wm withdraw $PRIV(root)
	    }
	}
	his* {
	    ## 'history'
	    set sub {\2}
	    if {[string match -new* $args]} { append sub "\n"}
	    set h [::tkcon::EvalSlave history]
	    regsub -all "( *\[0-9\]+  |\t)(\[^\n\]*\n?)" $h $sub h
	    return $h
	}
	ico* {
	    ## 'iconify' - iconifies the console with 'iconify'.
	    if {[info exists PRIV(root)] && [winfo exists $PRIV(root)]} {
		wm iconify $PRIV(root)
	    }
	}
	mas* - eval {
	    ## 'master' - evals contents in master interpreter
	    uplevel \#0 $args
	}
	result* {
	    ## 'resultfilter' Sets/queries the result filter command
	    if {[llength $args]} {
		set OPT(resultfilter) $args
	    }
	    return $OPT(resultfilter)
	}
	set {
	    ## 'set' - set (or get, or unset) simple vars (not whole arrays)
	    ## from the master console interpreter
	    ## possible formats:
	    ##    tkcon set <var>
	    ##    tkcon set <var> <value>
	    ##    tkcon set <var> <interp> <var1> <var2> w
	    ##    tkcon set <var> <interp> <var1> <var2> u
	    ##    tkcon set <var> <interp> <var1> <var2> r
	    if {[llength $args]==5} {
		## This is for use w/ 'tkcon upvar' and only works with slaves
		foreach {var i var1 var2 op} $args break
		if {[string compare {} $var2]} { append var1 "($var2)" }
		switch $op {
		    u { uplevel \#0 [list unset $var] }
		    w {
			return [uplevel \#0 [list set $var \
				[interp eval $i [list set $var1]]]]
		    }
		    r {
			return [interp eval $i [list set $var1 \
				[uplevel \#0 [list set $var]]]]
		    }
		}
	    } elseif {[llength $args] == 1} {
		upvar \#0 [lindex $args 0] var
		if {[array exists var]} {
		    return [array get var]
		} else {
		    return $var
		}
	    }
	    return [uplevel \#0 set $args]
	}
	append {
	    ## Modify a var in the master environment using append
	    return [uplevel \#0 append $args]
	}
	lappend {
	    ## Modify a var in the master environment using lappend
	    return [uplevel \#0 lappend $args]
	}
	sh* - dei* {
	    ## 'show|deiconify' - deiconifies the console.
	    if {![info exists PRIV(root)]} {
		# We are likely in some embedded console configuration.
		# Make default setup reflect that.
		set PRIV(showOnStartup) 0
		set PRIV(protocol) {tkcon hide}
		set PRIV(root) .tkcon
		set OPT(exec) ""
	    }
	    if {![winfo exists $PRIV(root)]} {
		eval [linsert $args 0 ::tkcon::Init]
	    }
	    # this may throw an error if toplevel is embedded
	    catch {wm deiconify $PRIV(root); raise $PRIV(root)}
	    focus -force $PRIV(console)
	}
	ti* {
	    ## 'title' ?title? - gets/sets the console's title
	    if {[llength $args]} {
		return [wm title $PRIV(root) [join $args]]
	    } else {
		return [wm title $PRIV(root)]
	    }
	}
	upv* {
	    ## 'upvar' masterVar slaveVar
	    ## link slave variable slaveVar to the master variable masterVar
	    ## only works masters<->slave
	    set masterVar [lindex $args 0]
	    set slaveVar  [lindex $args 1]
	    if {[info exists $masterVar]} {
		interp eval $OPT(exec) \
			[list set $slaveVar [set $masterVar]]
	    } else {
		catch {interp eval $OPT(exec) [list unset $slaveVar]}
	    }
	    interp eval $OPT(exec) \
		    [list trace variable $slaveVar rwu \
		    [list tkcon set $masterVar $OPT(exec)]]
	    return
	}
	v* {
	    return $PRIV(version)
	}
	default {
	    ## tries to determine if the command exists, otherwise throws error
	    set new ::tkcon::[string toupper \
		    [string index $cmd 0]][string range $cmd 1 end]
	    if {[llength [info command $new]]} {
		uplevel \#0 $new $args
	    } else {
		return -code error "bad option \"$cmd\": must be\
			[join [lsort [list attach close console destroy \
			font hide iconify load main master new save show \
			slave deiconify version title bgerror]] {, }]"
	    }
	}
    }
}

##
## Some procedures to make up for lack of built-in shell commands
##

## tkcon_trim -
## Trim output string to max. 2k to overcome slowness of text widget
## on very long lines
##
# ARGS:	string to trim
# Outputs:	the trimmed string
##
proc tkcon_trim string {
    set result ""
    foreach line [split $string "\n"] {
	if {[string length $line] > 2044} {
	    lappend result "[string range $line 0 2044]..."
	} else {
	    lappend result $line
	}
    }
    return [join $result "\n"]
}

## tkcon_puts -
## This allows me to capture all stdout/stderr to the console window
## This will be renamed to 'puts' at the appropriate time during init
##
# ARGS:	same as usual	
# Outputs:	the string with a color-coded text tag
## 
proc tkcon_puts args {
    set len [llength $args]
    foreach {arg1 arg2 arg3} $args { break }

    if {$len == 1} {
	tkcon console insert output "[tkcon_trim $arg1]\n" stdout
    } elseif {$len == 2} {
	if {![string compare $arg1 -nonewline]} {
	    tkcon console insert output [tkcon_trim $arg2] stdout
	} elseif {![string compare $arg1 stdout] \
		|| ![string compare $arg1 stderr]} {
	    tkcon console insert output "[tkcon_trim $arg2]\n" $arg1
	} else {
	    set len 0
	}
    } elseif {$len == 3} {
	if {![string compare $arg1 -nonewline] \
		&& (![string compare $arg2 stdout] \
		|| ![string compare $arg2 stderr])} {
	    tkcon console insert output [tkcon_trim $arg3] $arg2
	} elseif {(![string compare $arg1 stdout] \
		|| ![string compare $arg1 stderr]) \
		&& ![string compare $arg3 nonewline]} {
	    tkcon console insert output [tkcon_trim $arg2] $arg1
	} else {
	    set len 0
	}
    } else {
	set len 0
    }

    ## $len == 0 means it wasn't handled by tkcon above.
    ##
    if {$len == 0} {
	global errorCode errorInfo
	if {[catch "tkcon_tcl_puts $args" msg]} {
	    regsub tkcon_tcl_puts $msg puts msg
	    regsub -all tkcon_tcl_puts $errorInfo puts errorInfo
	    return -code error $msg
	}
	return $msg
    }

    ## WARNING: This update should behave well because it uses idletasks,
    ## however, if there are weird looping problems with events, or
    ## hanging in waits, try commenting this out.
    if {$len} {
	tkcon console see output
	update idletasks
    }
}

## tkcon_gets -
## This allows me to capture all stdin input without needing to stdin
## This will be renamed to 'gets' at the appropriate time during init
##
# ARGS:		same as gets	
# Outputs:	same as gets
##
proc tkcon_gets args {
    set len [llength $args]
    if {$len != 1 && $len != 2} {
	return -code error \
		"wrong # args: should be \"gets channelId ?varName?\""
    }
    if {[string compare stdin [lindex $args 0]]} {
	return [uplevel 1 tkcon_tcl_gets $args]
    }
    set gtype [tkcon set ::tkcon::OPT(gets)]
    if {$gtype == ""} { set gtype congets }
    set data [tkcon $gtype]
    if {$len == 2} {
	upvar 1 [lindex $args 1] var
	set var $data
	return [string length $data]
    }
    return $data
}

## edit - opens a file/proc/var for reading/editing
## 
# Arguments:
#   type	proc/file/var
#   what	the actual name of the item
# Returns:	nothing
## 
proc edit {args} {
    variable ::tkcon::PRIV
    variable ::tkcon::COLOR
    variable ::tkcon::OPT

    array set opts {-find {} -type {} -attach {} -wrap {none}}
    while {[string match -* [lindex $args 0]]} {
	switch -glob -- [lindex $args 0] {
	    -f*	{ set opts(-find) [lindex $args 1] }
	    -a*	{ set opts(-attach) [lindex $args 1] }
	    -t*	{ set opts(-type) [lindex $args 1] }
	    -w*	{ set opts(-wrap) [lindex $args 1] }
	    --	{ set args [lreplace $args 0 0]; break }
	    default {return -code error "unknown option \"[lindex $args 0]\""}
	}
	set args [lreplace $args 0 1]
    }
    # determine who we are dealing with
    if {[llength $opts(-attach)]} {
	foreach {app type} $opts(-attach) {break}
    } else {
	foreach {app type} [tkcon attach] {break}
    }

    set word [lindex $args 0]
    if {$opts(-type) == {}} {
	if {[llength [::tkcon::EvalOther $app $type info commands [list $word]]]} {
	    set opts(-type) "proc"
	} elseif {[llength [::tkcon::EvalOther $app $type info vars [list $word]]]} {
	    set opts(-type) "var"
	} elseif {[::tkcon::EvalOther $app $type file isfile [list $word]]} {
	    set opts(-type) "file"
	}
    }
    if {$opts(-type) == {}} {
	return -code error "unrecognized type '$word'"
    }

    # Create unique edit window toplevel
    set w $PRIV(base).__edit
    set i 0
    while {[winfo exists $w[incr i]]} {}
    append w $i
    toplevel $w
    wm withdraw $w
    if {[string length $word] > 20} {
	wm title $w "[string range $word 0 16]... - tkcon Edit"
    } else {
	wm title $w "$word - tkcon Edit"
    }

    if {[package provide ctext] != ""} {
	set txt [ctext $w.text]
    } else {
	set txt [text $w.text]
    }
    $w.text configure -wrap $opts(-wrap) \
	-xscrollcommand [list $w.sx set] \
	-yscrollcommand [list $w.sy set] \
	-foreground $COLOR(stdin) \
	-background $COLOR(bg) \
	-insertbackground $COLOR(cursor) \
	-font $::tkcon::OPT(font) -borderwidth 1 -highlightthickness 0 \
	-undo 1
    catch {
	# 8.5+ stuff
	set tabsp [expr {$OPT(tabspace) * [font measure $OPT(font) 0]}]
	$w.text configure -tabs [list $tabsp left] -tabstyle wordprocessor
    }

    scrollbar $w.sx -orient h -command [list $w.text xview]
    scrollbar $w.sy -orient v -command [list $w.text yview]

    set menu [menu $w.mbar]
    $w configure -menu $menu

    ## File Menu
    ##
    set m [menu [::tkcon::MenuButton $menu File file]]
    $m add command -label "Save As..."  -underline 0 \
	-command [list ::tkcon::Save {} widget $w.text]
    $m add command -label "Append To..."  -underline 0 \
	-command [list ::tkcon::Save {} widget $w.text a+]
    $m add separator
    $m add command -label "Dismiss" -underline 0 -accel $PRIV(ACC)w \
	-command [list destroy $w]
    bind $w <$PRIV(CTRL)w>		[list destroy $w]
    bind $w <Alt-w>		[list destroy $w]

    ## Edit Menu
    ##
    set text $w.text
    set m [menu [::tkcon::MenuButton $menu Edit edit]]
    $m add command -label "Cut"   -underline 2 \
	-command [list tk_textCut $text]
    $m add command -label "Copy"  -underline 0 \
	-command [list tk_textCopy $text]
    $m add command -label "Paste" -underline 0 \
	-command [list tk_textPaste $text]
    $m add separator
    $m add command -label "Find" -underline 0 \
	-command [list ::tkcon::FindBox $text]

    ## Send To Menu
    ##
    set m [menu [::tkcon::MenuButton $menu "Send To..." send]]
    $m add command -label "Send To $app" -underline 0 \
	-command "::tkcon::EvalOther [list $app] $type \
		eval \[$w.text get 1.0 end-1c\]"
    set other [tkcon attach]
    if {[string compare $other [list $app $type]]} {
	$m add command -label "Send To [lindex $other 0]" \
	    -command "::tkcon::EvalOther $other \
		    eval \[$w.text get 1.0 end-1c\]"
    }

    grid $w.text - $w.sy -sticky news
    grid $w.sx - -sticky ew
    grid columnconfigure $w 0 -weight 1
    grid columnconfigure $w 1 -weight 1
    grid rowconfigure $w 0 -weight 1

    switch -glob -- $opts(-type) {
	proc*	{
	    $w.text insert 1.0 \
		    [::tkcon::EvalOther $app $type dump proc [list $word]]
	    after idle [::tkcon::Highlight $w.text tcl]
	}
	var*	{
	    $w.text insert 1.0 \
		    [::tkcon::EvalOther $app $type dump var [list $word]]
	    after idle [::tkcon::Highlight $w.text tcl]
	}
	file	{
	    $w.text insert 1.0 [::tkcon::EvalOther $app $type eval \
		    [subst -nocommands {
		set __tkcon(fid) [open {$word} r]
		set __tkcon(data) [read \$__tkcon(fid)]
		close \$__tkcon(fid)
		after 1000 unset __tkcon
		return \$__tkcon(data)
	    }
	    ]]
	    after idle [::tkcon::Highlight $w.text \
			    [string trimleft [file extension $word] .]]
	}
	error*	{
	    $w.text insert 1.0 [join $args \n]
	    after idle [::tkcon::Highlight $w.text error]
	}
	default	{
	    $w.text insert 1.0 [join $args \n]
	}
    }
    wm deiconify $w
    focus $w.text
    if {[string compare $opts(-find) {}]} {
	::tkcon::Find $w.text $opts(-find) -case 1
    }
}
interp alias {} ::more {} ::edit
interp alias {} ::less {} ::edit

## echo
## Relaxes the one string restriction of 'puts'
# ARGS:	any number of strings to output to stdout
##
proc echo args { puts stdout [concat $args] }

## clear - clears the buffer of the console (not the history though)
## This is executed in the parent interpreter
## 
proc clear {{pcnt 100}} {
    if {![regexp {^[0-9]*$} $pcnt] || $pcnt < 1 || $pcnt > 100} {
	return -code error \
		"invalid percentage to clear: must be 1-100 (100 default)"
    } elseif {$pcnt == 100} {
	tkcon console delete 1.0 end
    } else {
	set tmp [expr {$pcnt/100.0*[tkcon console index end]}]
	tkcon console delete 1.0 "$tmp linestart"
    }
}

## alias - akin to the csh alias command
## If called with no args, then it dumps out all current aliases
## If called with one arg, returns the alias of that arg (or {} if none)
# ARGS:	newcmd	- (optional) command to bind alias to
# 	args	- command and args being aliased
## 
proc alias {{newcmd {}} args} {
    if {[string match {} $newcmd]} {
	set res {}
	foreach a [interp aliases] {
	    lappend res [list $a -> [interp alias {} $a]]
	}
	return [join $res \n]
    } elseif {![llength $args]} {
	interp alias {} $newcmd
    } else {
	eval interp alias [list {} $newcmd {}] $args
    }
}

## unalias - unaliases an alias'ed command
# ARGS:	cmd	- command to unbind as an alias
## 
proc unalias {cmd} {
    interp alias {} $cmd {}
}

## dump - outputs variables/procedure/widget info in source'able form.
## Accepts glob style pattern matching for the names
#
# ARGS:	type	- type of thing to dump: must be variable, procedure, widget
#
# OPTS: -nocomplain
#		don't complain if no items of the specified type are found
#	-filter pattern
#		specifies a glob filter pattern to be used by the variable
#		method as an array filter pattern (it filters down for
#		nested elements) and in the widget method as a config
#		option filter pattern
#	--	forcibly ends options recognition
#
# Returns:	the values of the requested items in a 'source'able form
## 
proc dump {type args} {
    set whine 1
    set code  ok
    if {![llength $args]} {
	## If no args, assume they gave us something to dump and
	## we'll try anything
	set args $type
	set type any
    }
    while {[string match -* [lindex $args 0]]} {
	switch -glob -- [lindex $args 0] {
	    -n* { set whine 0; set args [lreplace $args 0 0] }
	    -f* { set fltr [lindex $args 1]; set args [lreplace $args 0 1] }
	    --  { set args [lreplace $args 0 0]; break }
	    default {return -code error "unknown option \"[lindex $args 0]\""}
	}
    }
    if {$whine && ![llength $args]} {
	return -code error "wrong \# args: [lindex [info level 0] 0] type\
		?-nocomplain? ?-filter pattern? ?--? pattern ?pattern ...?"
    }
    set res {}
    switch -glob -- $type {
	c* {
	    # command
	    # outputs commands by figuring out, as well as possible, what it is
	    # this does not attempt to auto-load anything
	    foreach arg $args {
		if {[llength [set cmds [info commands $arg]]]} {
		    foreach cmd [lsort $cmds] {
			if {[lsearch -exact [interp aliases] $cmd] > -1} {
			    append res "\#\# ALIAS:   $cmd =>\
				    [interp alias {} $cmd]\n"
			} elseif {
			    [llength [info procs $cmd]] ||
			    ([string match *::* $cmd] &&
			    [llength [namespace eval [namespace qual $cmd] \
				    info procs [namespace tail $cmd]]])
			} {
			    if {[catch {dump p -- $cmd} msg] && $whine} {
				set code error
			    }
			    append res $msg\n
			} else {
			    append res "\#\# COMMAND: $cmd\n"
			}
		    }
		} elseif {$whine} {
		    append res "\#\# No known command $arg\n"
		    set code error
		}
	    }
	}
	v* {
	    # variable
	    # outputs variables value(s), whether array or simple.
	    if {![info exists fltr]} { set fltr * }
	    foreach arg $args {
		if {![llength [set vars [uplevel 1 info vars [list $arg]]]]} {
		    if {[uplevel 1 info exists $arg]} {
			set vars $arg
		    } elseif {$whine} {
			append res "\#\# No known variable $arg\n"
			set code error
			continue
		    } else { continue }
		}
		foreach var [lsort $vars] {
		    if {[uplevel 1 [list info locals $var]] == ""} {
			# use the proper scope of the var, but namespace which
			# won't id locals or some upvar'ed vars correctly
			set new [uplevel 1 \
				[list namespace which -variable $var]]
			if {$new != ""} {
			    set var $new
			}
		    }
		    upvar 1 $var v
		    if {[array exists v] || [catch {string length $v}]} {
			set nst {}
			append res "array set [list $var] \{\n"
			if {[array size v]} {
			    foreach i \
				    [lsort -dictionary [array names v $fltr]] {
				upvar 0 v\($i\) __a
				if {[array exists __a]} {
				    append nst "\#\# NESTED ARRAY ELEM: $i\n"
				    append nst "upvar 0 [list $var\($i\)] __a;\
					    [dump v -filter $fltr __a]\n"
				} else {
				    append res "    [list $i]\t[list $v($i)]\n"
				}
			    }
			} else {
			    ## empty array
			    append res "    empty array\n"
			    if {$var == ""} {
				append nst "unset (empty)\n"
			    } else {
				append nst "unset [list $var](empty)\n"
			    }
			}
			append res "\}\n$nst"
		    } else {
			append res [list set $var $v]\n
		    }
		}
	    }
	}
	p* {
	    # procedure
	    foreach arg $args {
		if {
		    ![llength [set procs [info proc $arg]]] &&
		    ([string match *::* $arg] &&
		    [llength [set ps [namespace eval \
			    [namespace qualifier $arg] \
			    info procs [namespace tail $arg]]]])
		} {
		    set procs {}
		    set namesp [namespace qualifier $arg]
		    foreach p $ps {
			lappend procs ${namesp}::$p
		    }
		}
		if {[llength $procs]} {
		    foreach p [lsort $procs] {
			set as {}
			foreach a [info args $p] {
			    if {[info default $p $a tmp]} {
				lappend as [list $a $tmp]
			    } else {
				lappend as $a
			    }
			}
			append res [list proc $p $as [info body $p]]\n
		    }
		} elseif {$whine} {
		    append res "\#\# No known proc $arg\n"
		    set code error
		}
	    }
	}
	w* {
	    # widget
	    ## The user should have Tk loaded
	    if {![llength [info command winfo]]} {
		return -code error "winfo not present, cannot dump widgets"
	    }
	    if {![info exists fltr]} { set fltr .* }
	    foreach arg $args {
		if {[llength [set ws [info command $arg]]]} {
		    foreach w [lsort $ws] {
			if {[winfo exists $w]} {
			    if {[catch {$w configure} cfg]} {
				append res "\#\# Widget $w\
					does not support configure method"
				set code error
			    } else {
				append res "\#\# [winfo class $w]\
					$w\n$w configure"
				foreach c $cfg {
				    if {[llength $c] != 5} continue
				    ## Check to see that the option does
				    ## not match the default, then check
				    ## the item against the user filter
				    if {[string compare [lindex $c 3] \
					    [lindex $c 4]] && \
					    [regexp -nocase -- $fltr $c]} {
					append res " \\\n\t[list [lindex $c 0]\
						[lindex $c 4]]"
				    }
				}
				append res \n
			    }
			}
		    }
		} elseif {$whine} {
		    append res "\#\# No known widget $arg\n"
		    set code error
		}
	    }
	}
	a* {
	    ## see if we recognize it, other complain
	    if {[regexp {(var|com|proc|widget)} \
		    [set types [uplevel 1 what $args]]]} {
		foreach type $types {
		    if {[regexp {(var|com|proc|widget)} $type]} {
			append res "[uplevel 1 dump $type $args]\n"
		    }
		}
	    } else {
		set res "dump was unable to resolve type for \"$args\""
		set code error
	    }
	}
	default {
	    return -code error "bad [lindex [info level 0] 0] option\
		    \"$type\": must be variable, command, procedure,\
		    or widget"
	}
    }
    return -code $code [string trimright $res \n]
}

## idebug - interactive debugger
#
# idebug body ?level?
#
#	Prints out the body of the command (if it is a procedure) at the
#	specified level.  <i>level</i> defaults to the current level.
#
# idebug break
#
#	Creates a breakpoint within a procedure.  This will only trigger
#	if idebug is on and the id matches the pattern.  If so, TkCon will
#	pop to the front with the prompt changed to an idebug prompt.  You
#	are given the basic ability to observe the call stack an query/set
#	variables or execute Tcl commands at any level.  A separate history
#	is maintained in debugging mode.
#
# idebug echo|{echo ?id?} ?args?
#
#	Behaves just like "echo", but only triggers when idebug is on.
#	You can specify an optional id to further restrict triggering.
#	If no id is specified, it defaults to the name of the command
#	in which the call was made.
#
# idebug id ?id?
#
#	Query or set the idebug id.  This id is used by other idebug
#	methods to determine if they should trigger or not.  The idebug
#	id can be a glob pattern and defaults to *.
#
# idebug off
#
#	Turns idebug off.
#
# idebug on ?id?
#
#	Turns idebug on.  If 'id' is specified, it sets the id to it.
#
# idebug puts|{puts ?id?} args
#
#	Behaves just like "puts", but only triggers when idebug is on.
#	You can specify an optional id to further restrict triggering.
#	If no id is specified, it defaults to the name of the command
#	in which the call was made.
#
# idebug show type ?level? ?VERBOSE?
#
#	'type' must be one of vars, locals or globals.  This method
#	will output the variables/locals/globals present in a particular
#	level.  If VERBOSE is added, then it actually 'dump's out the
#	values as well.  'level' defaults to the level in which this
#	method was called.
#
# idebug trace ?level?
#
#	Prints out the stack trace from the specified level up to the top
#	level.  'level' defaults to the current level.
#
##
proc idebug {opt args} {
    global IDEBUG

    if {![info exists IDEBUG(on)]} {
	array set IDEBUG { on 0 id * debugging 0 }
    }
    set level [expr {[info level]-1}]
    switch -glob -- $opt {
	on	{
	    # id is just arg0 [bug #50]
	    if {[llength $args]} { set IDEBUG(id) [lindex $args 0] }
	    return [set IDEBUG(on) 1]
	}
	off	{ return [set IDEBUG(on) 0] }
	id  {
	    if {![llength $args]} {
		return $IDEBUG(id)
	    } else { return [set IDEBUG(id) [lindex $args 0]] }
	}
	break {
	    if {!$IDEBUG(on) || $IDEBUG(debugging) || \
		    ([llength $args] && \
		    ![string match $IDEBUG(id) $args]) || [info level]<1} {
		return
	    }
	    set IDEBUG(debugging) 1
	    puts stderr "idebug at level \#$level: [lindex [info level -1] 0]"
	    set tkcon [llength [info command tkcon]]
	    if {$tkcon} {
		tkcon master eval set ::tkcon::OPT(prompt2) \$::tkcon::OPT(prompt1)
		tkcon master eval set ::tkcon::OPT(prompt1) \$::tkcon::OPT(debugPrompt)
		set slave [tkcon set ::tkcon::OPT(exec)]
		set event [tkcon set ::tkcon::PRIV(event)]
		tkcon set ::tkcon::OPT(exec) [tkcon master interp create debugger]
		tkcon set ::tkcon::PRIV(event) 1
	    }
	    set max $level
	    while 1 {
		set err {}
		if {$tkcon} {
		    # tkcon's overload of gets is advanced enough to not need
		    # this, but we get a little better control this way.
		    tkcon evalSlave set level $level
		    tkcon prompt
		    set line [tkcon getcommand]
		    tkcon console mark set output end
		} else {
		    puts -nonewline stderr "(level \#$level) debug > "
		    gets stdin line
		    while {![info complete $line]} {
			puts -nonewline "> "
			append line "\n[gets stdin]"
		    }
		}
		if {[string match {} $line]} continue
		set key [regexp -inline {\S+} $line]
		if {![regexp {^\s*\S+\s+([#-]?[0-9]+)} $line -> lvl]} {
		    set lvl \#$level
		}
		set res {}; set c 0
		switch -- $key {
		    + {
			## Allow for jumping multiple levels
			if {$level < $max} {
			    idebug trace [incr level] $level 0 VERBOSE
			}
		    }
		    - {
			## Allow for jumping multiple levels
			if {$level > 1} {
			    idebug trace [incr level -1] $level 0 VERBOSE
			}
		    }
		    . { set c [catch {idebug trace $level $level 0 VERBOSE} res] }
		    v { set c [catch {idebug show vars $lvl } res] }
		    V { set c [catch {idebug show vars $lvl VERBOSE} res] }
		    l { set c [catch {idebug show locals $lvl } res] }
		    L { set c [catch {idebug show locals $lvl VERBOSE} res] }
		    g { set c [catch {idebug show globals $lvl } res] }
		    G { set c [catch {idebug show globals $lvl VERBOSE} res] }
		    t { set c [catch {idebug trace 1 $max $level } res] }
		    T { set c [catch {idebug trace 1 $max $level VERBOSE} res]}
		    b { set c [catch {idebug body $lvl} res] }
		    o { set res [set IDEBUG(on) [expr {!$IDEBUG(on)}]] }
		    h - ?	{
			puts stderr "    +		Move down in call stack
    -		Move up in call stack
    .		Show current proc name and params

    v		Show names of variables currently in scope
    V		Show names of variables currently in scope with values
    l		Show names of local (transient) variables
    L		Show names of local (transient) variables with values
    g		Show names of declared global variables
    G		Show names of declared global variables with values
    t		Show a stack trace
    T		Show a verbose stack trace

    b		Show body of current proc
    o		Toggle on/off any further debugging
    c,q		Continue regular execution (Quit debugger)
    h,?		Print this help
    default	Evaluate line at current level (\#$level)"
		    }
		    c - q break
		    default { set c [catch {uplevel \#$level $line} res] }
		}
		if {$tkcon} {
		    tkcon set ::tkcon::PRIV(event) \
			    [tkcon evalSlave eval history add [list $line]\
			    \; history nextid]
		}
		if {$c} {
		    puts stderr $res
		} elseif {[string compare {} $res]} {
		    puts $res
		}
	    }
	    set IDEBUG(debugging) 0
	    if {$tkcon} {
		tkcon master interp delete debugger
		tkcon master eval set ::tkcon::OPT(prompt1) \$::tkcon::OPT(prompt2)
		tkcon set ::tkcon::OPT(exec) $slave
		tkcon set ::tkcon::PRIV(event) $event
		tkcon prompt
	    }
	}
	bo* {
	    if {[regexp {^([#-]?[0-9]+)} $args level]} {
		return [uplevel $level {dump c -no [lindex [info level 0] 0]}]
	    }
	}
	t* {
	    if {[llength $args]<2} return
	    set min [set max [set lvl $level]]
	    set exp {^#?([0-9]+)? ?#?([0-9]+) ?#?([0-9]+)? ?(VERBOSE)?}
	    if {![regexp $exp $args junk min max lvl verbose]} return
	    for {set i $max} {
		$i>=$min && ![catch {uplevel \#$i info level 0} info]
	    } {incr i -1} {
		if {$i==$lvl} {
		    puts -nonewline stderr "* \#$i:\t"
		} else {
		    puts -nonewline stderr "  \#$i:\t"
		}
		set name [lindex $info 0]
		if {[string compare VERBOSE $verbose] || \
			![llength [info procs $name]]} {
		    puts $info
		} else {
		    puts "proc $name {[info args $name]} { ... }"
		    set idx 0
		    foreach arg [info args $name] {
			if {[string match args $arg]} {
			    puts "\t$arg = [lrange $info [incr idx] end]"
			    break
			} else {
			    puts "\t$arg = [lindex $info [incr idx]]"
			}
		    }
		}
	    }
	}
	s* {
	    #var, local, global
	    set level \#$level
	    if {![regexp {^([vgl][^ ]*) ?([#-]?[0-9]+)? ?(VERBOSE)?} \
		    $args junk type level verbose]} return
	    switch -glob -- $type {
		v* { set vars [uplevel $level {lsort [info vars]}] }
		l* { set vars [uplevel $level {lsort [info locals]}] }
		g* { set vars [lremove [uplevel $level {info vars}] \
			[uplevel $level {info locals}]] }
	    }
	    if {[string match VERBOSE $verbose]} {
		return [uplevel $level dump var -nocomplain $vars]
	    } else {
		return $vars
	    }
	}
	e* - pu* {
	    if {[llength $opt]==1 && [catch {lindex [info level -1] 0} id]} {
		set id [lindex [info level 0] 0]
	    } else {
		set id [lindex $opt 1]
	    }
	    if {$IDEBUG(on) && [string match $IDEBUG(id) $id]} {
		if {[string match e* $opt]} {
		    puts [concat $args]
		} else { eval puts $args }
	    }
	}
	default {
	    return -code error "bad [lindex [info level 0] 0] option \"$opt\",\
		    must be: [join [lsort [list on off id break print body\
		    trace show puts echo]] {, }]"
	}
    }
}

## observe - like trace, but not
# ARGS:	opt	- option
#	name	- name of variable or command
##
proc observe {opt name args} {
    global tcl_observe
    switch -glob -- $opt {
	co* {
	    if {[regexp {^(catch|lreplace|set|puts|for|incr|info|uplevel)$} \
		    $name]} {
		return -code error "cannot observe \"$name\":\
			infinite eval loop will occur"
	    }
	    set old ${name}@
	    while {[llength [info command $old]]} { append old @ }
	    rename $name $old
	    set max 4
	    regexp {^[0-9]+} $args max
	    # handle the observe'ing of 'proc'
	    set proccmd "proc"
	    if {[string match "proc" $name]} { set proccmd $old }
	    ## idebug trace could be used here
	    $proccmd $name args "
	    for {set i \[info level\]; set max \[expr \[info level\]-$max\]} {
		\$i>=\$max && !\[catch {uplevel \#\$i info level 0} info\]
	    } {incr i -1} {
		puts -nonewline stderr \"  \#\$i:\t\"
		puts \$info
	    }
	    uplevel \[lreplace \[info level 0\] 0 0 $old\]
	    "
	    set tcl_observe($name) $old
	}
	cd* {
	    if {[info exists tcl_observe($name)] && [catch {
		rename $name {}
		rename $tcl_observe($name) $name
		unset tcl_observe($name)
	    } err]} { return -code error $err }
	}
	ci* {
	    ## What a useless method...
	    if {[info exists tcl_observe($name)]} {
		set i $tcl_observe($name)
		set res "\"$name\" observes true command \"$i\""
		while {[info exists tcl_observe($i)]} {
		    append res "\n\"$name\" observes true command \"$i\""
		    set i $tcl_observe($name)
		}
		return $res
	    }
	}
	va* - vd* {
	    set type [lindex $args 0]
	    set args [lrange $args 1 end]
	    if {![regexp {^[rwu]} $type type]} {
		return -code error "bad [lindex [info level 0] 0] $opt type\
			\"$type\", must be: read, write or unset"
	    }
	    if {![llength $args]} { set args observe_var }
	    foreach c [uplevel 1 [list trace vinfo $name]] {
		# don't double up on the traces
		if {[list $type $args] == $c} { return }
	    }
	    uplevel 1 [list trace $opt $name $type $args]
	}
	vi* {
	    uplevel 1 [list trace vinfo $name]
	}
	default {
	    return -code error "bad [lindex [info level 0] 0] option\
		    \"[lindex $args 0]\", must be: [join [lsort \
		    [list command cdelete cinfo variable vdelete vinfo]] {, }]"
	}
    }
}

## observe_var - auxilary function for observing vars, called by trace
## via observe
# ARGS:	name	- variable name
#	el	- array element name, if any
#	op	- operation type (rwu)
##
proc observe_var {name el op} {
    if {[string match u $op]} {
	if {[string compare {} $el]} {
	    puts "unset \"${name}($el)\""
	} else {
	    puts "unset \"$name\""
	}
    } else {
	upvar 1 $name $name
	if {[info exists ${name}($el)]} {
	    puts [dump v ${name}($el)]
	} else {
	    puts [dump v $name]
	}
    }
}

## which - tells you where a command is found
# ARGS:	cmd	- command name
# Returns:	where command is found (internal / external / unknown)
## 
proc which cmd {
    ## This tries to auto-load a command if not recognized
    set types [uplevel 1 [list what $cmd 1]]
    if {[llength $types]} {
	set out {}
	
	foreach type $types {
	    switch -- $type {
		alias		{ set res "$cmd: aliased to [alias $cmd]" }
		procedure	{ set res "$cmd: procedure" }
		command		{ set res "$cmd: internal command" }
		executable	{ lappend out [auto_execok $cmd] }
		variable	{ lappend out "$cmd: $type" }
	    }
	    if {[info exists res]} {
		global auto_index
		if {[info exists auto_index($cmd)]} {
		    ## This tells you where the command MIGHT have come from -
		    ## not true if the command was redefined interactively or
		    ## existed before it had to be auto_loaded.  This is just
		    ## provided as a hint at where it MAY have come from
		    append res " ($auto_index($cmd))"
		}
		lappend out $res
		unset res
	    }
	}
	return [join $out \n]
    } else {
	return -code error "$cmd: command not found"
    }
}

## what - tells you what a string is recognized as
# ARGS:	str	- string to id
# Returns:	id types of command as list
## 
proc what {str {autoload 0}} {
    set types {}
    if {[llength [info commands $str]] || ($autoload && \
	    [auto_load $str] && [llength [info commands $str]])} {
	if {[lsearch -exact [interp aliases] $str] > -1} {
	    lappend types "alias"
	} elseif {
	    [llength [info procs $str]] ||
	    ([string match *::* $str] &&
	    [llength [namespace eval [namespace qualifier $str] \
		    info procs [namespace tail $str]]])
	} {
	    lappend types "procedure"
	} else {
	    lappend types "command"
	}
    }
    if {[llength [uplevel 1 info vars $str]]} {
	upvar 1 $str var
	if {[array exists var]} {
	    lappend types array variable
	} else {
	    lappend types scalar variable
	}
    }
    if {[file isdirectory $str]} {
	lappend types "directory"
    }
    if {[file isfile $str]} {
	lappend types "file"
    }
    if {[llength [info commands winfo]] && [winfo exists $str]} {
	lappend types "widget"
    }
    if {[string compare {} [auto_execok $str]]} {
	lappend types "executable"
    }
    return $types
}

## dir - directory list
# ARGS:	args	- names/glob patterns of directories to list
# OPTS:	-all	- list hidden files as well (Unix dot files)
#	-long	- list in full format "permissions size date filename"
#	-full	- displays / after directories and link paths for links
# Returns:	a directory listing
## 
proc dir {args} {
    array set s {
	all 0 full 0 long 0
	0 --- 1 --x 2 -w- 3 -wx 4 r-- 5 r-x 6 rw- 7 rwx
    }
    while {[string match \-* [lindex $args 0]]} {
	set str [lindex $args 0]
	set args [lreplace $args 0 0]
	switch -glob -- $str {
	    -a* {set s(all) 1} -f* {set s(full) 1}
	    -l* {set s(long) 1} -- break
	    default {
		return -code error "unknown option \"$str\",\
			should be one of: -all, -full, -long"
	    }
	}
    }
    set sep [string trim [file join . .] .]
    if {![llength $args]} { set args [list [pwd]] }
    if {$::tcl_version >= 8.3} {
	# Newer glob args allow safer dir processing.  The user may still
	# want glob chars, but really only for file matching.
	foreach arg $args {
	    if {[file isdirectory $arg]} {
		if {$s(all)} {
		    lappend out [list $arg [lsort \
			    [glob -nocomplain -directory $arg .* *]]]
		} else {
		    lappend out [list $arg [lsort \
			    [glob -nocomplain -directory $arg *]]]
		}
	    } else {
		set dir [file dirname $arg]
		lappend out [list $dir$sep [lsort \
			[glob -nocomplain -directory $dir [file tail $arg]]]]
	    }
	}
    } else {
	foreach arg $args {
	    if {[file isdirectory $arg]} {
		set arg [string trimright $arg $sep]$sep
		if {$s(all)} {
		    lappend out [list $arg [lsort [glob -nocomplain -- $arg.* $arg*]]]
		} else {
		    lappend out [list $arg [lsort [glob -nocomplain -- $arg*]]]
		}
	    } else {
		lappend out [list [file dirname $arg]$sep \
			[lsort [glob -nocomplain -- $arg]]]
	    }
	}
    }
    if {$s(long)} {
	set old [clock scan {1 year ago}]
	set fmt "%s%9ld %s %s\n"
	foreach o $out {
	    set d [lindex $o 0]
	    append res $d:\n
	    foreach f [lindex $o 1] {
		file lstat $f st
		set f [file tail $f]
		if {$s(full)} {
		    switch -glob $st(type) {
			d* { append f $sep }
			l* { append f "@ -> [file readlink $d$sep$f]" }
			default { if {[file exec $d$sep$f]} { append f * } }
		    }
		}
		if {[string match file $st(type)]} {
		    set mode -
		} else {
		    set mode [string index $st(type) 0]
		}
		foreach j [split [format %03o [expr {$st(mode)&0777}]] {}] {
		    append mode $s($j)
		}
		if {$st(mtime)>$old} {
		    set cfmt {%b %d %H:%M}
		} else {
		    set cfmt {%b %d  %Y}
		}
		append res [format $fmt $mode $st(size) \
			[clock format $st(mtime) -format $cfmt] $f]
	    }
	    append res \n
	}
    } else {
	foreach o $out {
	    set d [lindex $o 0]
	    append res "$d:\n"
	    set i 0
	    foreach f [lindex $o 1] {
		if {[string len [file tail $f]] > $i} {
		    set i [string len [file tail $f]]
		}
	    }
	    set i [expr {$i+2+$s(full)}]
	    set j 80
	    ## This gets the number of cols in the tkcon console widget
	    if {[llength [info commands tkcon]]} {
		set j [expr {[tkcon master set ::tkcon::OPT(cols)]/$i}]
	    }
	    set k 0
	    foreach f [lindex $o 1] {
		set f [file tail $f]
		if {$s(full)} {
		    switch -glob [file type $d$sep$f] {
			d* { append f $sep }
			l* { append f @ }
			default { if {[file exec $d$sep$f]} { append f * } }
		    }
		}
		append res [format "%-${i}s" $f]
		if {$j == 0 || [incr k]%$j == 0} {
		    set res [string trimright $res]\n
		}
	    }
	    append res \n\n
	}
    }
    return [string trimright $res]
}
interp alias {} ::ls {} ::dir -full

## lremove - remove items from a list
# OPTS:
#   -all	remove all instances of each item
#   -glob	remove all instances matching glob pattern
#   -regexp	remove all instances matching regexp pattern
# ARGS:	l	a list to remove items from
#	args	items to remove (these are 'join'ed together)
##
proc lremove {args} {
    array set opts {-all 0 pattern -exact}
    while {[string match -* [lindex $args 0]]} {
	switch -glob -- [lindex $args 0] {
	    -a*	{ set opts(-all) 1 }
	    -g*	{ set opts(pattern) -glob }
	    -r*	{ set opts(pattern) -regexp }
	    --	{ set args [lreplace $args 0 0]; break }
	    default {return -code error "unknown option \"[lindex $args 0]\""}
	}
	set args [lreplace $args 0 0]
    }
    set l [lindex $args 0]
    foreach i [join [lreplace $args 0 0]] {
	if {[set ix [lsearch $opts(pattern) $l $i]] == -1} continue
	set l [lreplace $l $ix $ix]
	if {$opts(-all)} {
	    while {[set ix [lsearch $opts(pattern) $l $i]] != -1} {
		set l [lreplace $l $ix $ix]
	    }
	}
    }
    return $l
}

if {!$::tkcon::PRIV(WWW)} {;

## Unknown changed to get output into tkcon window
# unknown:
# Invoked automatically whenever an unknown command is encountered.
# Works through a list of "unknown handlers" that have been registered
# to deal with unknown commands.  Extensions can integrate their own
# handlers into the 'unknown' facility via 'unknown_handler'.
#
# If a handler exists that recognizes the command, then it will
# take care of the command action and return a valid result or a
# Tcl error.  Otherwise, it should return "-code continue" (=2)
# and responsibility for the command is passed to the next handler.
#
# Arguments:
# args -	A list whose elements are the words of the original
#		command, including the command name.

proc unknown args {
    global unknown_handler_order unknown_handlers errorInfo errorCode

    #
    # Be careful to save error info now, and restore it later
    # for each handler.  Some handlers generate their own errors
    # and disrupt handling.
    #
    set savedErrorCode $errorCode
    set savedErrorInfo $errorInfo

    if {![info exists unknown_handler_order] || \
	    ![info exists unknown_handlers]} {
	set unknown_handlers(tcl) tcl_unknown
	set unknown_handler_order tcl
    }

    foreach handler $unknown_handler_order {
        set status [catch {uplevel 1 $unknown_handlers($handler) $args} result]

        if {$status == 1} {
            #
            # Strip the last five lines off the error stack (they're
            # from the "uplevel" command).
            #
            set new [split $errorInfo \n]
            set new [join [lrange $new 0 [expr {[llength $new]-6}]] \n]
            return -code $status -errorcode $errorCode \
                -errorinfo $new $result

        } elseif {$status != 4} {
            return -code $status $result
        }

        set errorCode $savedErrorCode
        set errorInfo $savedErrorInfo
    }

    set name [lindex $args 0]
    return -code error "invalid command name \"$name\""
}

# tcl_unknown:
# Invoked when a Tcl command is invoked that doesn't exist in the
# interpreter:
#
#	1. See if the autoload facility can locate the command in a
#	   Tcl script file.  If so, load it and execute it.
#	2. If the command was invoked interactively at top-level:
#	    (a) see if the command exists as an executable UNIX program.
#		If so, "exec" the command.
#	    (b) see if the command requests csh-like history substitution
#		in one of the common forms !!, !<number>, or ^old^new.  If
#		so, emulate csh's history substitution.
#	    (c) see if the command is a unique abbreviation for another
#		command.  If so, invoke the command.
#
# Arguments:
# args -	A list whose elements are the words of the original
#		command, including the command name.

proc tcl_unknown args {
    global auto_noexec auto_noload env unknown_pending tcl_interactive
    global errorCode errorInfo

    # If the command word has the form "namespace inscope ns cmd"
    # then concatenate its arguments onto the end and evaluate it.

    set cmd [lindex $args 0]
    if {[regexp "^:*namespace\[ \t\n\]+inscope" $cmd] \
	    && [llength $cmd] == 4} {
        set arglist [lrange $args 1 end]
	set ret [catch {uplevel 1 $cmd $arglist} result]
        if {$ret == 0} {
            return $result
        } else {
	    return -code $ret -errorcode $errorCode $result
        }
    }

    # Save the values of errorCode and errorInfo variables, since they
    # may get modified if caught errors occur below.  The variables will
    # be restored just before re-executing the missing command.

    set savedErrorCode $errorCode
    set savedErrorInfo $errorInfo
    set name [lindex $args 0]
    if {![info exists auto_noload]} {
	#
	# Make sure we're not trying to load the same proc twice.
	#
	if {[info exists unknown_pending($name)]} {
	    return -code error "self-referential recursion in \"unknown\" for command \"$name\""
	}
	set unknown_pending($name) pending
	if {[llength [info args auto_load]]==1} {
	    set ret [catch {auto_load $name} msg]
	} else {
	    set ret [catch {auto_load $name [uplevel 1 {namespace current}]} msg]
	}
	unset unknown_pending($name)
	if {$ret} {
	    return -code $ret -errorcode $errorCode \
		    "error while autoloading \"$name\": $msg"
	}
	if {![array size unknown_pending]} { unset unknown_pending }
	if {$msg} {
	    set errorCode $savedErrorCode
	    set errorInfo $savedErrorInfo
	    set code [catch {uplevel 1 $args} msg]
	    if {$code ==  1} {
		#
		# Strip the last five lines off the error stack (they're
		# from the "uplevel" command).
		#

		set new [split $errorInfo \n]
		set new [join [lrange $new 0 [expr {[llength $new]-6}]] \n]
		return -code error -errorcode $errorCode \
			-errorinfo $new $msg
	    } else {
		return -code $code $msg
	    }
	}
    }
    if {[info level] == 1 && [string match {} [info script]] \
	    && [info exists tcl_interactive] && $tcl_interactive} {
	if {![info exists auto_noexec]} {
	    set new [auto_execok $name]
	    if {[string compare {} $new]} {
		set errorCode $savedErrorCode
		set errorInfo $savedErrorInfo
		if {[info exists ::tkcon::EXPECT] && $::tkcon::EXPECT && [package provide Expect] != ""} {
		    return [tkcon expect [concat $new [lrange $args 1 end]]]
		} else {
		    return [uplevel 1 exec $new [lrange $args 1 end]]
		}
		#return [uplevel exec >&@stdout <@stdin $new [lrange $args 1 end]]
	    }
	}
	set errorCode $savedErrorCode
	set errorInfo $savedErrorInfo
	##
	## History substitution moved into ::tkcon::EvalCmd
	##
	if {[string compare $name "::"] == 0} {
	    set name ""
	}
	if {$ret != 0} {
	    return -code $ret -errorcode $errorCode \
		"error in unknown while checking if \"$name\" is a unique command abbreviation: $msg"
	}
	set cmds [info commands $name*]
	if {[llength $cmds] == 1} {
	    return [uplevel 1 [lreplace $args 0 0 $cmds]]
	}
	if {[llength $cmds]} {
	    if {$name == ""} {
		return -code error "empty command name \"\""
	    } else {
		return -code error \
			"ambiguous command name \"$name\": [lsort $cmds]"
	    }
	}
	## We've got nothing so far
	## Check and see if Tk wasn't loaded, but it appears to be a Tk cmd
	if {![uplevel \#0 info exists tk_version]} {
	    lappend tkcmds bell bind bindtags button \
		    canvas checkbutton clipboard destroy \
		    entry event focus font frame grab grid image \
		    label labelframe listbox lower menu menubutton message \
		    option pack panedwindow place radiobutton raise \
		    scale scrollbar selection send spinbox \
		    text tk tkwait toplevel winfo wm
	    if {[lsearch -exact $tkcmds $name] >= 0 && \
		    [tkcon master tk_messageBox -icon question -parent . \
		    -title "Load Tk?" -type retrycancel -default retry \
		    -message "This appears to be a Tk command, but Tk\
		    has not yet been loaded.  Shall I retry the command\
		    with loading Tk first?"] == "retry"} {
		return [uplevel 1 "load {} Tk; $args"]
	    }
	}
    }
    return -code continue
}

} ; # end exclusionary code for WWW

proc ::tkcon::Bindings {} {
    variable PRIV
    global tcl_platform tk_version

    #-----------------------------------------------------------------------
    # Elements of tk::Priv that are used in this file:
    #
    # mouseMoved -	Non-zero means the mouse has moved a significant
    #			amount since the button went down (so, for example,
    #			start dragging out a selection).
    #-----------------------------------------------------------------------

    ## Get all Text bindings into TkConsole
    foreach ev [bind Text] { bind TkConsole $ev [bind Text $ev] }
    ## We really didn't want the newline insertion
    bind TkConsole <Control-Key-o> {}

    ## in 8.6b3, the virtual events <<NextLine>> and <<PrevLine>> 
    #  mess up our history feature
    bind TkConsole <<NextLine>> {}
    bind TkConsole <<PrevLine>> {}

    ## Now make all our virtual event bindings
    set bindings {
	<<TkCon_Exit>>		<$PRIV(CTRL)-q>
	<<TkCon_New>>		<$PRIV(CTRL)-N>
	<<TkCon_NewTab>>	<$PRIV(CTRL)-T>
	<<TkCon_NextTab>>	<Control-Key-Tab>
	<<TkCon_PrevTab>>	<Control-Shift-Key-Tab>
	<<TkCon_Close>>		<$PRIV(CTRL)-w>
	<<TkCon_About>>		<$PRIV(CTRL)-A>
	<<TkCon_Find>>		<$PRIV(CTRL)F>
	<<TkCon_Slave>>		<$PRIV(CTRL)Key-1>
	<<TkCon_Master>>	<$PRIV(CTRL)Key-2>
	<<TkCon_Main>>		<$PRIV(CTRL)Key-3>
	<<TkCon_Expand>>	<Key-Tab>
	<<TkCon_ExpandFile>>	<Key-Escape>
	<<TkCon_ExpandProc>>	<Control-P>
	<<TkCon_ExpandVar>>	<Control-V>
	<<TkCon_Tab>>		<Control-i>
	<<TkCon_Tab>>		<Alt-i>
	<<TkCon_Newline>>	<Control-o>
	<<TkCon_Newline>>	<Alt-o>
	<<TkCon_Newline>>	<Control-Key-Return>
	<<TkCon_Newline>>	<Control-Key-KP_Enter>
	<<TkCon_Eval>>		<Return>
	<<TkCon_Eval>>		<KP_Enter>
	<<TkCon_Clear>>		<Control-l>
	<<TkCon_Previous>>	<Up>
	<<TkCon_PreviousImmediate>>	<Control-p>
	<<TkCon_PreviousSearch>>	<Control-r>
	<<TkCon_Next>>		<Down>
	<<TkCon_NextImmediate>>	<Control-n>
	<<TkCon_NextSearch>>	<Control-s>
	<<TkCon_Transpose>>	<Control-t>
	<<TkCon_ClearLine>>	<Control-u>
	<<TkCon_SaveCommand>>	<Control-z>
    }
    if {$PRIV(AQUA)} {
	lappend bindings <<TkCon_Popup>> <Control-Button-1> \
	    <<TkCon_Popup>> <Button-2>
    } else {
	lappend bindings <<TkCon_Popup>> <Button-3>
    }
    foreach {ev key} [subst -nocommand -noback $bindings] {
	event add $ev $key
	## Make sure the specific key won't be defined
	bind TkConsole $key {}
    }

    ## Make the ROOT bindings
    bind $PRIV(root) <<TkCon_Exit>>	exit
    bind $PRIV(root) <<TkCon_New>>	{ ::tkcon::New }
    bind $PRIV(root) <<TkCon_NewTab>>	{ ::tkcon::NewTab }
    bind $PRIV(root) <<TkCon_NextTab>>	{ ::tkcon::GotoTab 1 ; break }
    bind $PRIV(root) <<TkCon_PrevTab>>	{ ::tkcon::GotoTab -1 ; break }
    bind $PRIV(root) <<TkCon_Close>>	{ ::tkcon::Destroy }
    bind $PRIV(root) <<TkCon_About>>	{ ::tkcon::About }
    bind $PRIV(root) <<TkCon_Find>>	{ ::tkcon::FindBox $::tkcon::PRIV(console) }
    bind $PRIV(root) <<TkCon_Slave>>	{
	::tkcon::Attach {}
	::tkcon::RePrompt "\n" [::tkcon::CmdGet $::tkcon::PRIV(console)]
    }
    bind $PRIV(root) <<TkCon_Master>>	{
	if {[string compare {} $::tkcon::PRIV(name)]} {
	    ::tkcon::Attach $::tkcon::PRIV(name)
	} else {
	    ::tkcon::Attach Main
	}
	::tkcon::RePrompt "\n" [::tkcon::CmdGet $::tkcon::PRIV(console)]
    }
    bind $PRIV(root) <<TkCon_Main>>	{
	::tkcon::Attach Main
	::tkcon::RePrompt "\n" [::tkcon::CmdGet $::tkcon::PRIV(console)]
    }
    bind $PRIV(root) <<TkCon_Popup>> {
	::tkcon::PopupMenu %X %Y
    }

    ## Menu items need null TkConsolePost bindings to avoid the TagProc
    ##
    foreach ev [bind $PRIV(root)] {
	bind TkConsolePost $ev {
	    # empty
	}
    }


    # ::tkcon::ClipboardKeysyms --
    # This procedure is invoked to identify the keys that correspond to
    # the copy, cut, and paste functions for the clipboard.
    #
    # Arguments:
    # copy -	Name of the key (keysym name plus modifiers, if any,
    #		such as "Meta-y") used for the copy operation.
    # cut -		Name of the key used for the cut operation.
    # paste -	Name of the key used for the paste operation.

    proc ::tkcon::ClipboardKeysyms {copy cut paste} {
	bind TkConsole <$copy>	{::tkcon::Copy %W}
	bind TkConsole <$cut>	{::tkcon::Cut %W}
	bind TkConsole <$paste>	{::tkcon::Paste %W}
    }

    proc ::tkcon::GetSelection {w} {
	if {
	    ![catch {selection get -displayof $w -type UTF8_STRING} txt] ||
	    ![catch {selection get -displayof $w} txt] ||
	    ![catch {selection get -displayof $w -selection CLIPBOARD} txt]
	} {
	    return $txt
	}
	return -code error "could not find default selection"
    }

    proc ::tkcon::Cut w {
	if {[string match $w [selection own -displayof $w]]} {
	    clipboard clear -displayof $w
	    catch {
		set txt [selection get -displayof $w]
		clipboard append -displayof $w $txt
		if {[$w compare sel.first >= limit]} {
		    $w delete sel.first sel.last
		}
	    }
	}
    }
    proc ::tkcon::Copy w {
	if {[string match $w [selection own -displayof $w]]} {
	    clipboard clear -displayof $w
	    catch {
		set txt [selection get -displayof $w]
		clipboard append -displayof $w $txt
	    }
	}
    }
    proc ::tkcon::Paste w {
	if {![catch {GetSelection $w} txt]} {
	    catch {
		if {[$w compare sel.first >= limit]} {
		    $w delete sel.first sel.last
		}
	    }
	    if {[$w compare insert < limit]} { $w mark set insert end }
	    $w insert insert $txt
	    $w see insert
	    if {[string match *\n* $txt]} { ::tkcon::Eval $w }
	}
    }

    ## Redefine for TkConsole what we need
    ##
    event delete <<Paste>> <$PRIV(CTRL)V>
    ::tkcon::ClipboardKeysyms <Copy> <Cut> <Paste>

    bind TkConsole <Insert> {
	catch { ::tkcon::Insert %W [::tkcon::GetSelection %W] }
    }

    bind TkConsole <Triple-1> {+
	catch {
	    eval %W tag remove sel [%W tag nextrange prompt sel.first sel.last]
	    eval %W tag remove sel sel.last-1c
	    %W mark set insert sel.first
	}
    }

    ## binding editor needed
    ## binding <events> for .tkconrc

    bind TkConsole <<TkCon_ExpandFile>> {
	if {[%W compare insert > limit]} {::tkcon::Expand %W path}
	break ; # could check "%K" == "Tab"
    }
    bind TkConsole <<TkCon_ExpandProc>> {
	if {[%W compare insert > limit]} {::tkcon::Expand %W proc}
	break ; # could check "%K" == "Tab"
    }
    bind TkConsole <<TkCon_ExpandVar>> {
	if {[%W compare insert > limit]} {::tkcon::Expand %W var}
	break ; # could check "%K" == "Tab"
    }
    bind TkConsole <<TkCon_Expand>> {
	if {[%W compare insert > limit]} {::tkcon::Expand %W}
	break ; # could check "%K" == "Tab"
    }
    bind TkConsole <<TkCon_Tab>> {
	if {[%W compare insert >= limit]} {
	    ::tkcon::Insert %W \t
	}
    }
    bind TkConsole <<TkCon_Newline>> {
	if {[%W compare insert >= limit]} {
	    ::tkcon::Insert %W \n
	}
    }
    bind TkConsole <<TkCon_Eval>> {
	::tkcon::Eval %W
    }
    bind TkConsole <Delete> {
	if {[llength [%W tag nextrange sel 1.0 end]] \
		&& [%W compare sel.first >= limit]} {
	    %W delete sel.first sel.last
	} elseif {[%W compare insert >= limit]} {
	    %W delete insert
	    %W see insert
	}
    }
    bind TkConsole <BackSpace> {
	if {[llength [%W tag nextrange sel 1.0 end]] \
		&& [%W compare sel.first >= limit]} {
	    %W delete sel.first sel.last
	} elseif {[%W compare insert != 1.0] && [%W compare insert > limit]} {
	    %W delete insert-1c
	    %W see insert
	}
    }
    bind TkConsole <Control-h> [bind TkConsole <BackSpace>]

    bind TkConsole <KeyPress> {
	::tkcon::Insert %W %A
    }

    bind TkConsole <Control-a> {
	if {[%W compare {limit linestart} == {insert linestart}]} {
	    tk::TextSetCursor %W limit
	} else {
	    tk::TextSetCursor %W {insert linestart}
	}
    }
    bind TkConsole <Key-Home> [bind TkConsole <Control-a>]
    bind TkConsole <Control-d> {
	if {[%W compare insert < limit]} break
	%W delete insert
    }
    bind TkConsole <Control-k> {
	if {[%W compare insert < limit]} break
	if {[%W compare insert == {insert lineend}]} {
	    %W delete insert
	} else {
	    %W delete insert {insert lineend}
	}
    }
    bind TkConsole <<TkCon_Clear>> {
	## Clear console buffer, without losing current command line input
	set ::tkcon::PRIV(tmp) [::tkcon::CmdGet %W]
	clear
	::tkcon::Prompt {} $::tkcon::PRIV(tmp)
    }
    bind TkConsole <<TkCon_Previous>> {
	if {[%W compare {insert linestart} != {limit linestart}]} {
	    tk::TextSetCursor %W [tk::TextUpDownLine %W -1]
	} else {
	    ::tkcon::Event -1
	}
    }
    bind TkConsole <<TkCon_Next>> {
	if {[%W compare {insert linestart} != {end-1c linestart}]} {
	    tk::TextSetCursor %W [tk::TextUpDownLine %W 1]
	} else {
	    ::tkcon::Event 1
	}
    }
    bind TkConsole <<TkCon_NextImmediate>>  { ::tkcon::Event 1 }
    bind TkConsole <<TkCon_PreviousImmediate>> { ::tkcon::Event -1 }
    bind TkConsole <<TkCon_PreviousSearch>> {
	::tkcon::Event -1 [::tkcon::CmdGet %W]
    }
    bind TkConsole <<TkCon_NextSearch>>	    {
	::tkcon::Event 1 [::tkcon::CmdGet %W]
    }
    bind TkConsole <<TkCon_Transpose>>	{
	## Transpose current and previous chars
	if {[%W compare insert > "limit+1c"]} { tk::TextTranspose %W }
    }
    bind TkConsole <<TkCon_ClearLine>> {
	## Clear command line (Unix shell staple)
	%W delete limit end
    }
    bind TkConsole <<TkCon_SaveCommand>> {
	## Save command buffer (swaps with current command)
	set ::tkcon::PRIV(tmp) $::tkcon::PRIV(cmdsave)
	set ::tkcon::PRIV(cmdsave) [::tkcon::CmdGet %W]
	if {[string match {} $::tkcon::PRIV(cmdsave)]} {
	    set ::tkcon::PRIV(cmdsave) $::tkcon::PRIV(tmp)
	} else {
	    %W delete limit end-1c
	}
	::tkcon::Insert %W $::tkcon::PRIV(tmp)
	%W see end
    }
    catch {bind TkConsole <Key-Page_Up>   { tk::TextScrollPages %W -1 }}
    catch {bind TkConsole <Key-Prior>     { tk::TextScrollPages %W -1 }}
    catch {bind TkConsole <Key-Page_Down> { tk::TextScrollPages %W 1 }}
    catch {bind TkConsole <Key-Next>      { tk::TextScrollPages %W 1 }}
    bind TkConsole <Alt-d> {
	if {[%W compare insert >= limit]} {
	    %W delete insert {insert wordend}
	}
    }
    bind TkConsole <Alt-BackSpace> {
	if {[%W compare {insert -1c wordstart} >= limit]} {
	    %W delete {insert -1c wordstart} insert
	}
    }
    bind TkConsole <Alt-Delete> {
	if {[%W compare insert >= limit]} {
	    %W delete insert {insert wordend}
	}
    }
    bind TkConsole <ButtonRelease-2> {
	if {
	    (!$tk::Priv(mouseMoved) || $tk_strictMotif) &&
	    ![catch {::tkcon::GetSelection %W} ::tkcon::PRIV(tmp)]
	} {
	    if {[%W compare @%x,%y < limit]} {
		%W insert end $::tkcon::PRIV(tmp)
	    } else {
		%W insert @%x,%y $::tkcon::PRIV(tmp)
	    }
	    if {[string match *\n* $::tkcon::PRIV(tmp)]} {::tkcon::Eval %W}
	}
    }

    ##
    ## End TkConsole bindings
    ##

    ##
    ## Bindings for doing special things based on certain keys
    ##
    bind TkConsolePost <Key-parenright> {
	if {$::tkcon::OPT(lightbrace) && $::tkcon::OPT(blinktime)>99 && \
		[string compare \\ [%W get insert-2c]]} {
	    ::tkcon::MatchPair %W \( \) limit
	}
	set ::tkcon::PRIV(StatusCursor) [%W index insert]
    }
    bind TkConsolePost <Key-bracketright> {
	if {$::tkcon::OPT(lightbrace) && $::tkcon::OPT(blinktime)>99 && \
		[string compare \\ [%W get insert-2c]]} {
	    ::tkcon::MatchPair %W \[ \] limit
	}
	set ::tkcon::PRIV(StatusCursor) [%W index insert]
    }
    bind TkConsolePost <Key-braceright> {
	if {$::tkcon::OPT(lightbrace) && $::tkcon::OPT(blinktime)>99 && \
		[string compare \\ [%W get insert-2c]]} {
	    ::tkcon::MatchPair %W \{ \} limit
	}
	set ::tkcon::PRIV(StatusCursor) [%W index insert]
    }
    bind TkConsolePost <Key-quotedbl> {
	if {$::tkcon::OPT(lightbrace) && $::tkcon::OPT(blinktime)>99 && \
		[string compare \\ [%W get insert-2c]]} {
	    ::tkcon::MatchQuote %W limit
	}
	set ::tkcon::PRIV(StatusCursor) [%W index insert]
    }

    bind TkConsolePost <KeyPress> {
	if {[winfo exists "%W"]} {
	    if {$::tkcon::OPT(lightcmd) && [string compare {} %A]} {
		::tkcon::TagProc %W
	    }
	    set ::tkcon::PRIV(StatusCursor) [%W index insert]
	}
    }

    bind TkConsolePost <Button-1> {
	set ::tkcon::PRIV(StatusCursor) [%W index insert]
    }
    bind TkConsolePost <B1-Motion> {
	set ::tkcon::PRIV(StatusCursor) [%W index insert]
    }

}

##
# ::tkcon::PopupMenu - what to do when the popup menu is requested
##
proc ::tkcon::PopupMenu {X Y} {
    variable PRIV
    variable OPT

    set w $PRIV(console)
    if {[string compare $w [winfo containing $X $Y]]} {
	tk_popup $PRIV(popup) $X $Y
	return
    }
    set x [expr {$X-[winfo rootx $w]}]
    set y [expr {$Y-[winfo rooty $w]}]
    if {[llength [set tags [$w tag names @$x,$y]]]} {
	if {[lsearch -exact $tags "proc"] >= 0} {
	    lappend type "proc"
	    foreach {first last} [$w tag prevrange proc @$x,$y] {
		set word [$w get $first $last]; break
	    }
	}
	if {[lsearch -exact $tags "var"] >= 0} {
	    lappend type "var"
	    foreach {first last} [$w tag prevrange var @$x,$y] {
		set word [$w get $first $last]; break
	    }
	}
    }
    if {![info exists type]} {
	set exp "(^|\[^\\\\\]\[ \t\n\r\])"
	set exp2 "\[\[\\\\\\?\\*\]"
	set i [$w search -backwards -regexp $exp @$x,$y "@$x,$y linestart"]
	if {[string compare {} $i]} {
	    if {![string match *.0 $i]} {append i +2c}
	    if {[string compare {} \
		    [set j [$w search -regexp $exp $i "$i lineend"]]]} {
		append j +1c
	    } else {
		set j "$i lineend"
	    }
	    regsub -all $exp2 [$w get $i $j] {\\\0} word
	    set word [string trim $word {\"$[]{}',?#*}]
	    if {[llength [EvalAttached [list info commands $word]]]} {
		lappend type "proc"
	    }
	    if {[llength [EvalAttached [list info vars $word]]]} {
		lappend type "var"
	    }
	    if {[EvalAttached [list file isfile $word]]} {
		lappend type "file"
	    }
	}
    }
    if {![info exists type] || ![info exists word]} {
	tk_popup $PRIV(popup) $X $Y
	return
    }
    $PRIV(context) delete 0 end
    $PRIV(context) add command -label "$word" -state disabled
    $PRIV(context) add separator
    set app [Attach]
    if {[lsearch $type proc] != -1} {
	$PRIV(context) add command -label "View Procedure" \
		-command [list $OPT(edit) -attach $app -type proc -- $word]
    }
    if {[lsearch $type var] != -1} {
	$PRIV(context) add command -label "View Variable" \
		-command [list $OPT(edit) -attach $app -type var -- $word]
    }
    if {[lsearch $type file] != -1} {
	$PRIV(context) add command -label "View File" \
		-command [list $OPT(edit) -attach $app -type file -- $word]
    }
    tk_popup $PRIV(context) $X $Y
}

## ::tkcon::TagProc - tags a procedure in the console if it's recognized
## This procedure is not perfect.  However, making it perfect wastes
## too much CPU time...
##
proc ::tkcon::TagProc w {
    set exp "\[^\\\\\]\[\[ \t\n\r\;{}\"\$\]"
    set i [$w search -backwards -regexp $exp insert-1c limit-1c]
    if {[string compare {} $i]} {append i +2c} else {set i limit}
    regsub -all "\[\[\\\\\\?\\*\]" [$w get $i "insert-1c wordend"] {\\\0} c
    if {[llength [EvalAttached [list info commands $c]]]} {
	$w tag add proc $i "insert-1c wordend"
    } else {
	$w tag remove proc $i "insert-1c wordend"
    }
    if {[llength [EvalAttached [list info vars $c]]]} {
	$w tag add var $i "insert-1c wordend"
    } else {
	$w tag remove var $i "insert-1c wordend"
    }
}

## ::tkcon::MatchPair - blinks a matching pair of characters
## c2 is assumed to be at the text index 'insert'.
## This proc is really loopy and took me an hour to figure out given
## all possible combinations with escaping except for escaped \'s.
## It doesn't take into account possible commenting... Oh well.  If
## anyone has something better, I'd like to see/use it.  This is really
## only efficient for small contexts.
# ARGS:	w	- console text widget
# 	c1	- first char of pair
# 	c2	- second char of pair
# Calls:	::tkcon::Blink
## 
proc ::tkcon::MatchPair {w c1 c2 {lim 1.0}} {
    if {[string compare {} [set ix [$w search -back $c1 insert $lim]]]} {
	while {
	    [string match {\\} [$w get $ix-1c]] &&
	    [string compare {} [set ix [$w search -back $c1 $ix-1c $lim]]]
	} {}
	set i1 insert-1c
	while {[string compare {} $ix]} {
	    set i0 $ix
	    set j 0
	    while {[string compare {} [set i0 [$w search $c2 $i0 $i1]]]} {
		append i0 +1c
		if {[string match {\\} [$w get $i0-2c]]} continue
		incr j
	    }
	    if {!$j} break
	    set i1 $ix
	    while {$j && [string compare {} \
		    [set ix [$w search -back $c1 $ix $lim]]]} {
		if {[string match {\\} [$w get $ix-1c]]} continue
		incr j -1
	    }
	}
	if {[string match {} $ix]} { set ix [$w index $lim] }
    } else { set ix [$w index $lim] }
    if {$::tkcon::OPT(blinkrange)} {
	Blink $w $ix [$w index insert]
    } else {
	Blink $w $ix $ix+1c [$w index insert-1c] [$w index insert]
    }
}

## ::tkcon::MatchQuote - blinks between matching quotes.
## Blinks just the quote if it's unmatched, otherwise blinks quoted string
## The quote to match is assumed to be at the text index 'insert'.
# ARGS:	w	- console text widget
# Calls:	::tkcon::Blink
## 
proc ::tkcon::MatchQuote {w {lim 1.0}} {
    set i insert-1c
    set j 0
    while {[string compare [set i [$w search -back \" $i $lim]] {}]} {
	if {[string match {\\} [$w get $i-1c]]} continue
	if {!$j} {set i0 $i}
	incr j
    }
    if {$j&1} {
	if {$::tkcon::OPT(blinkrange)} {
	    Blink $w $i0 [$w index insert]
	} else {
	    Blink $w $i0 $i0+1c [$w index insert-1c] [$w index insert]
	}
    } else {
	Blink $w [$w index insert-1c] [$w index insert]
    }
}

## ::tkcon::Blink - blinks between n index pairs for a specified duration.
# ARGS:	w	- console text widget
# 	i1	- start index to blink region
# 	i2	- end index of blink region
# 	dur	- duration in usecs to blink for
# Outputs:	blinks selected characters in $w
## 
proc ::tkcon::Blink {w args} {
    eval [list $w tag add blink] $args
    after $::tkcon::OPT(blinktime) [list $w] tag remove blink $args
    return
}


## ::tkcon::Insert
## Insert a string into a text console at the point of the insertion cursor.
## If there is a selection in the text, and it covers the point of the
## insertion cursor, then delete the selection before inserting.
# ARGS:	w	- text window in which to insert the string
# 	s	- string to insert (usually just a single char)
# Outputs:	$s to text widget
## 
proc ::tkcon::Insert {w s} {
    if {[string match {} $s] || [string match disabled [$w cget -state]]} {
	return
    }
    variable EXP
    if {[info exists EXP(spawn_id)]} {
	exp_send -i $EXP(spawn_id) -- $s
	return
    }
    if {[$w comp insert < limit]} {
	$w mark set insert end
    }
    if {[llength [$w tag ranges sel]] && \
	    [$w comp sel.first <= insert] && [$w comp sel.last >= insert]} {
	$w delete sel.first sel.last
    }
    $w insert insert $s
    $w see insert
}

## ::tkcon::Expand - 
# ARGS:	w	- text widget in which to expand str
# 	type	- type of expansion (path / proc / variable)
# Calls:	::tkcon::Expand(Pathname|Procname|Variable)
# Outputs:	The string to match is expanded to the longest possible match.
#		If ::tkcon::OPT(showmultiple) is non-zero and the user longest
#		match equaled the string to expand, then all possible matches
#		are output to stdout.  Triggers bell if no matches are found.
# Returns:	number of matches found
## 
proc ::tkcon::Expand {w {type ""}} {
    set exp "\[^\\\\\]\[\[ \t\n\r\\\{\"$\]"
    set tmp [$w search -backwards -regexp $exp insert-1c limit-1c]
    if {[string compare {} $tmp]} {append tmp +2c} else {set tmp limit}
    set str [$w get $tmp insert]
    # Expand procs can return "break" to indicate not to try further
    # matches, otherwise "continue" says "I got nothing, continue on"
    # We can ignore return codes from the specific expand type checks
    switch -glob $type {
	pa* { set code [catch {ExpandPathname $str} res] }
	pr* { set code [catch {ExpandProcname $str} res] }
	v*  { set code [catch {ExpandVariable $str} res] }
	default {
	    # XXX could be extended to allow the results of all matches
	    # XXX to be amalgamted ... may be confusing to user
	    set res {}
	    foreach t $::tkcon::OPT(expandorder) {
		set code [catch {Expand$t $str} res]
		if {$code == 0 || $code == 3} { break }
		set res {}
	    }
	}
    }
    set len [llength $res]
    if {$len} {
	$w delete $tmp insert
	$w insert $tmp [lindex $res 0]
	if {$len > 1} {
	    if {$::tkcon::OPT(showmultiple) && \
		    ![string compare [lindex $res 0] $str]} {
		puts stdout [lsort [lreplace $res 0 0]]
	    }
	}
    } else { bell }
    return [incr len -1]
}

## ::tkcon::ExpandPathname - expand a file pathname based on $str
## This is based on UNIX file name conventions
# ARGS:	str	- partial file pathname to expand
# Calls:	::tkcon::ExpandBestMatch
# Returns:	list containing longest unique match followed by all the
#		possible further matches
## 
proc ::tkcon::ExpandPathname str {

    # require at least a single character, otherwise continue
    if {$str eq ""} {return -code continue}

    set pwd [EvalAttached pwd]
    # Cause a string like {C:/Program\ Files/} to become "C:/Program Files/"
    regsub -all {\\([][ ])} $str {\1} str
    if {[catch {EvalAttached [list cd [file dirname $str]]} err]} {
	return -code error $err
    }
    set dir [file tail $str]
    ## Check to see if it was known to be a directory and keep the trailing
    ## slash if so (file tail cuts it off)
    if {[string match */ $str]} { append dir / }
    # Create a safely glob-able name
    regsub -all {([][])} $dir {\\\1} safedir
    if {[catch {lsort [EvalAttached [list glob $safedir*]]} m]} {
	set match {}
    } else {
	if {[llength $m] > 1} {
	    global tcl_platform
	    if {[string match windows $tcl_platform(platform)]} {
		## Windows is screwy because it's case insensitive
		set tmp [ExpandBestMatch [string tolower $m] \
			[string tolower $dir]]
		## Don't change case if we haven't changed the word
		if {[string length $dir]==[string length $tmp]} {
		    set tmp $dir
		}
	    } else {
		set tmp [ExpandBestMatch $m $dir]
	    }
	    if {[string match */* $str]} {
		set tmp [string trimright [file dirname $str] /]/$tmp
	    }
	    regsub -all {([^\\])([][ ])} $tmp {\1\\\2} tmp
	    set match [linsert $m 0 $tmp]
	} else {
	    ## This may look goofy, but it handles spaces in path names
	    eval append match $m
	    if {[file isdirectory $match]} {append match /}
	    if {[string match */* $str]} {
		set match [string trimright [file dirname $str] /]/$match
	    }
	    regsub -all {([^\\])([][ ])} $match {\1\\\2} match
	    ## Why is this one needed and the ones below aren't!!
	    set match [list $match]
	}
    }
    EvalAttached [list cd $pwd]
    return -code [expr {$match eq "" ? "continue" : "break"}] $match
}

## ::tkcon::ExpandProcname - expand a tcl proc name based on $str
# ARGS:	str	- partial proc name to expand
# Calls:	::tkcon::ExpandBestMatch
# Returns:	list containing longest unique match followed by all the
#		possible further matches
##
proc ::tkcon::ExpandProcname str {

    # require at least a single character, otherwise continue
    if {$str eq ""} {return -code continue}

    set match [EvalAttached [list info commands $str*]]
    if {[llength $match] == 0} {
	set ns [EvalAttached \
		"namespace children \[namespace current\] [list $str*]"]
	if {[llength $ns]==1} {
	    set match [EvalAttached [list info commands ${ns}::*]]
	} else {
	    set match $ns
	}
    }
    if {[llength $match] > 1} {
	regsub -all {([^\\]) } [ExpandBestMatch $match $str] {\1\\ } str
	set match [linsert $match 0 $str]
    } else {
	regsub -all {([^\\]) } $match {\1\\ } match
    }
    return -code [expr {$match eq "" ? "continue" : "break"}] $match
}

## ::tkcon::ExpandMethodname - expand an NSF/XOTcl method name based on $str
# ARGS:	str	- partial proc name to expand
# Calls:	::tkcon::ExpandBestMatch
# Returns:	list containing longest unique match followed by all the
#		possible further matches
##
proc ::tkcon::ExpandMethodname str {
    # Locate the start of the current command looking back from the insert
    # cursor to the end of the prompt (mark "limit"). Note the start of the
    # command may be following a ";", "[", not necessarily the beginning.
    set start [$::tkcon::PRIV(console) search -backwards -regexp {^|[;\[]\s*} insert-1c limit-1c]
    if {[string compare {} $start]} {
	append start +1c
    } else {
	set start limit
    }
    set typedCmd [string trimleft [$::tkcon::PRIV(console) get $start insert]]

    set obj [lindex $typedCmd 0]
    if {$obj eq $typedCmd} {
	# just a single word, can't be a method expansion
        return -code continue
    }
    # Get the full string after the object
    set sub [string trimleft [string range $typedCmd [string length $obj] end]]

    # Deal with cases where the object is actually stored in a variable
    # extract the real object name (ie. $x methodcall).
    if {[string index $obj 0] eq "\$"} {
	set obj [EvalAttached [list set [string range $obj 1 end]]]
    }

    if {[EvalAttached [list info exists ::nsf::version]]} {
	# Next Scripting Framework is loaded
	if {![EvalAttached [list ::nsf::object::exists $obj]]} {return -code continue}
	if {[string match ::* $sub]} {
	    # NSF allows dispatch of unregistered methods via absolute
	    # paths
	    set cmd "concat \[info commands $sub*\] \[namespace children \[namespace qualifiers $sub\] $sub*\]"
	} else {
	    set cmd [list $obj ::nsf::methods::object::info::lookupmethods -callprotection public -path -- $sub*]
	}
    } elseif {[EvalAttached [list info exists ::xotcl::version]]} {
	# XOTcl < 2.* is loaded
	if {![EvalAttached [list ::xotcl::Object isobject $obj]]} {return -code continue}
	set cmd [list $obj info methods $sub*]
    } elseif {[llength [EvalAttached [list ::info commands oo::define]]]} {
	if {![EvalAttached "::info object isa object $obj"]} {
	    return -code continue
	}
	set cmd [list apply {
	    {obj sub} {
		set matches {}
		foreach meth [::info object methods $obj -all] {
		    if {[string match $sub* $meth]} {
			lappend matches $meth
		    }
		}
		return $matches
	    }} $obj $sub]
    } else {
	# No NSF/XOTcl loaded
        return -code continue
    }

    set match [EvalAttached $cmd]
    if {[llength $match] > 1} {
	regsub -all {([^\\]) } [ExpandBestMatch $match $str] {\1\\ } bestMatch
	if {$str eq "" && [string match "* " $bestMatch]} {
	    set match [linsert $match 0 ""]
	} else {
	    regsub -all {\\ } $bestMatch { } bestMatch
	    set match [linsert $match 0 [lindex $bestMatch end]]
	}
    } else {
	set match [lindex [lindex $match 0] end]
    }
    return -code break $match
}

## ::tkcon::ExpandVariable - expand a tcl variable name based on $str
# ARGS:	str	- partial tcl var name to expand
# Calls:	::tkcon::ExpandBestMatch
# Returns:	list containing longest unique match followed by all the
#		possible further matches
## 
proc ::tkcon::ExpandVariable str {

    # require at least a single character, otherwise continue
    if {$str eq ""} {return -code continue}

    if {[regexp {([^\(]*)\((.*)} $str junk ary str]} {
	## Looks like they're trying to expand an array.
	set match [EvalAttached [list array names $ary $str*]]
	if {[llength $match] > 1} {
	    set vars $ary\([ExpandBestMatch $match $str]
	    foreach var $match {lappend vars $ary\($var\)}
	    return $vars
	} elseif {[llength $match] == 1} {
	    set match $ary\($match\)
	}
	## Space transformation avoided for array names.
    } else {
	set match [EvalAttached [list info vars $str*]]
	if {[llength $match] > 1} {
	    regsub -all {([^\\]) } [ExpandBestMatch $match $str] {\1\\ } str
	    set match [linsert $match 0 $str]
	} else {
	    regsub -all {([^\\]) } $match {\1\\ } match
	}
    }
    return -code [expr {$match eq "" ? "continue" : "break"}] $match
}

## ::tkcon::ExpandBestMatch2 - finds the best unique match in a list of names
## Improves upon the speed of the below proc only when $l is small
## or $e is {}.  $e is extra for compatibility with proc below.
# ARGS:	l	- list to find best unique match in
# Returns:	longest unique match in the list
## 
proc ::tkcon::ExpandBestMatch2 {l {e {}}} {
    set s [lindex $l 0]
    if {[llength $l]>1} {
	set i [expr {[string length $s]-1}]
	foreach l $l {
	    while {$i>=0 && [string first $s $l]} {
		set s [string range $s 0 [incr i -1]]
	    }
	}
    }
    return $s
}

## ::tkcon::ExpandBestMatch - finds the best unique match in a list of names
## The extra $e in this argument allows us to limit the innermost loop a
## little further.  This improves speed as $l becomes large or $e becomes long.
# ARGS:	l	- list to find best unique match in
# 	e	- currently best known unique match
# Returns:	longest unique match in the list
## 
proc ::tkcon::ExpandBestMatch {l {e {}}} {
    set ec [lindex $l 0]
    if {[llength $l]>1} {
	set e  [string length $e]; incr e -1
	set ei [string length $ec]; incr ei -1
	foreach l $l {
	    while {$ei>=$e && [string first $ec $l]} {
		set ec [string range $ec 0 [incr ei -1]]
	    }
	}
    }
    return $ec
}

# Here is a group of functions that is only used when Tkcon is
# executed in a safe interpreter. It provides safe versions of
# missing functions. For example:
#
# - "tk appname" returns "tkcon.tcl" but cannot be set
# - "toplevel" is equivalent to 'frame', only it is automatically
#   packed.
# - The 'source', 'load', 'open', 'file' and 'exit' functions are
#   mapped to corresponding functions in the parent interpreter.
#
# Further on, Tk cannot be really loaded. Still the safe 'load'
# provedes a speciall case. The Tk can be divided into 4 groups,
# that each has a safe handling procedure.
#
# - "::tkcon::SafeItem" handles commands like 'button', 'canvas' ......
#   Each of these functions has the window name as first argument.
# - "::tkcon::SafeManage" handles commands like 'pack', 'place', 'grid',
#   'winfo', which can have multiple window names as arguments.
# - "::tkcon::SafeWindow" handles all windows, such as '.'. For every
#   window created, a new alias is formed which also is handled by
#   this function.
# - Other (e.g. bind, bindtag, image), which need their own function.
#
## These functions courtesy Jan Nijtmans
##
if {![llength [info commands tk]]} {
    proc tk {option args} {
	if {![string match app* $option]} {
	    error "wrong option \"$option\": should be appname"
	}
	return "tkcon.tcl"
    }
}

if {![llength [info command toplevel]]} {
    proc toplevel {name args} {
	eval [linsert $args 0 frame $name]
	grid $name -sticky news
    }
}

proc ::tkcon::SafeSource {i f} {
    set fd [open $f r]
    set r [read $fd]
    close $fd
    if {[catch {interp eval $i $r} msg]} {
	error $msg
    }
}

proc ::tkcon::SafeOpen {i f {m r}} {
    set fd [open $f $m]
    interp transfer {} $fd $i
    return $fd
}

proc ::tkcon::SafeLoad {i f p} {
    global tk_version tk_patchLevel tk_library auto_path
    if {[string compare $p Tk]} {
	load $f $p $i
    } else {
	foreach command {button canvas checkbutton entry frame label
	listbox message radiobutton scale scrollbar spinbox text toplevel} {
	    $i alias $command ::tkcon::SafeItem $i $command
	}
	$i alias image ::tkcon::SafeImage $i
	foreach command {pack place grid destroy winfo} {
	    $i alias $command ::tkcon::SafeManage $i $command
	}
	if {[llength [info command event]]} {
	    $i alias event ::tkcon::SafeManage $i $command
	}
	frame .${i}_dot -width 300 -height 300 -relief raised
	pack .${i}_dot -side left
	$i alias tk tk
	$i alias bind ::tkcon::SafeBind $i
	$i alias bindtags ::tkcon::SafeBindtags $i
	$i alias . ::tkcon::SafeWindow $i {}
	foreach var {tk_version tk_patchLevel tk_library auto_path} {
	    $i eval [list set $var [set $var]]
	}
	$i eval {
	    package provide Tk $tk_version
	    if {[lsearch -exact $auto_path $tk_library] < 0} {
		lappend auto_path $tk_library
	    }
	}
	return ""
    }
}

proc ::tkcon::SafeSubst {i a} {
    set arg1 ""
    foreach {arg value} $a {
	if {![string compare $arg -textvariable] ||
	![string compare $arg -variable]} {
	    set newvalue "[list $i] $value"
	    global $newvalue
	    if {[interp eval $i info exists $value]} {
		set $newvalue [interp eval $i set $value]
	    } else {
		catch {unset $newvalue}
	    }
	    $i eval trace variable $value rwu \{[list tkcon set $newvalue $i]\}
	    set value $newvalue
	} elseif {![string compare $arg -command]} {
	    set value [list $i eval $value]
	}
	lappend arg1 $arg $value
    }
    return $arg1
}

proc ::tkcon::SafeItem {i command w args} {
    set args [::tkcon::SafeSubst $i $args]
    set code [catch "$command [list .${i}_dot$w] $args" msg]
    $i alias $w ::tkcon::SafeWindow $i $w
    regsub -all .${i}_dot $msg {} msg
    return -code $code $msg
}

proc ::tkcon::SafeManage {i command args} {
    set args1 ""
    foreach arg $args {
	if {[string match . $arg]} {
	    set arg .${i}_dot
	} elseif {[string match .* $arg]} {
	    set arg ".${i}_dot$arg"
	}
	lappend args1 $arg
    }
    set code [catch "$command $args1" msg]
    regsub -all .${i}_dot $msg {} msg
    return -code $code $msg
}

#
# FIX: this function doesn't work yet if the binding starts with '+'.
#
proc ::tkcon::SafeBind {i w args} {
    if {[string match . $w]} {
	set w .${i}_dot
    } elseif {[string match .* $w]} {
	set w ".${i}_dot$w"
    }
    if {[llength $args] > 1} {
	set args [list [lindex $args 0] \
		"[list $i] eval [list [lindex $args 1]]"]
    }
    set code [catch "bind $w $args" msg]
    if {[llength $args] <2 && $code == 0} {
	set msg [lindex $msg 3]
    }
    return -code $code $msg
}

proc ::tkcon::SafeImage {i option args} {
    set code [catch "image $option $args" msg]
    if {[string match cr* $option]} {
	$i alias $msg $msg
    }
    return -code $code $msg
}

proc ::tkcon::SafeBindtags {i w {tags {}}} {
    if {[string match . $w]} {
	set w .${i}_dot
    } elseif {[string match .* $w]} {
	set w ".${i}_dot$w"
    }
    set newtags {}
    foreach tag $tags {
	if {[string match . $tag]} {
	    lappend newtags .${i}_dot
	} elseif {[string match .* $tag]} {
	    lappend newtags ".${i}_dot$tag"
	} else {
	    lappend newtags $tag
	}
    }
    if {[string match $tags {}]} {
	set code [catch {bindtags $w} msg]
	regsub -all \\.${i}_dot $msg {} msg
    } else {
	set code [catch {bindtags $w $newtags} msg]
    }
    return -code $code $msg
}

proc ::tkcon::SafeWindow {i w option args} {
    if {[string match conf* $option] && [llength $args] > 1} {
	set args [::tkcon::SafeSubst $i $args]
    } elseif {[string match itemco* $option] && [llength $args] > 2} {
	set args "[list [lindex $args 0]] [::tkcon::SafeSubst $i [lrange $args 1 end]]"
    } elseif {[string match cr* $option]} {
	if {[llength $args]%2} {
	    set args "[list [lindex $args 0]] [::tkcon::SafeSubst $i [lrange $args 1 end]]"
	} else {
	    set args [::tkcon::SafeSubst $i $args]
	}
    } elseif {[string match bi* $option] && [llength $args] > 2} {
	set args [list [lindex $args 0] [lindex $args 1] "[list $i] eval [list [lindex $args 2]]"]
    }
    set code [catch ".${i}_dot$w $option $args" msg]
    if {$code} {
	regsub -all .${i}_dot $msg {} msg
    } elseif {[string match conf* $option] || [string match itemco* $option]} {
	if {[llength $args] == 1} {
	    switch -- $args {
		-textvariable - -variable {
		    set msg "[lrange $msg 0 3] [list [lrange [lindex $msg 4] 1 end]]"
		}
		-command - updatecommand {
		    set msg "[lrange $msg 0 3] [list [lindex [lindex $msg 4] 2]]"
		}
	    }
	} elseif {[llength $args] == 0} {
	    set args1 ""
	    foreach el $msg {
		switch -- [lindex $el 0] {
		    -textvariable - -variable {
			set el "[lrange $el 0 3] [list [lrange [lindex $el 4] 1 end]]"
		    }
		    -command - updatecommand {
			set el "[lrange $el 0 3] [list [lindex [lindex $el 4] 2]]"
		    }
		}
		lappend args1 $el
	    }
	    set msg $args1
	}
    } elseif {[string match cg* $option] || [string match itemcg* $option]} {
	switch -- $args {
	    -textvariable - -variable {
		set msg [lrange $msg 1 end]
	    }
	    -command - updatecommand {
		set msg [lindex $msg 2]
	    }
	}
    } elseif {[string match bi* $option]} {
	if {[llength $args] == 2 && $code == 0} {
	    set msg [lindex $msg 2]
	}
    }
    return -code $code $msg
}

proc ::tkcon::RetrieveFilter {host} {
    variable PRIV
    set result {}
    if {[info exists PRIV(proxy)]} {
	if {![regexp "^(localhost|127\.0\.0\.1)" $host]} {
	    set result [lrange [split [lindex $PRIV(proxy) 0] :] 0 1]
	}
    }
    return $result
}

proc ::tkcon::RetrieveAuthentication {} {
    package require Tk
    if {[catch {package require base64}]} {
        if {[catch {package require Trf}]} {
            error "base64 support not available"
        } else {
            set local64 "base64 -mode enc"
        }
    } else {
        set local64 "base64::encode"
    }

    set dlg [toplevel .auth]
    catch {wm attributes $dlg -type dialog}
    wm title $dlg "Authenticating Proxy Configuration"
    set f1 [frame ${dlg}.f1]
    set f2 [frame ${dlg}.f2]
    button $f2.b -text "OK" -command "destroy $dlg"
    pack $f2.b -side right
    label $f1.l2 -text "Username"
    label $f1.l3 -text "Password"
    entry $f1.e2 -textvariable "[namespace current]::conf_userid"
    entry $f1.e3 -textvariable "[namespace current]::conf_passwd" -show *
    grid $f1.l2 -column 0 -row 0 -sticky e
    grid $f1.l3 -column 0 -row 1 -sticky e
    grid $f1.e2 -column 1 -row 0 -sticky news
    grid $f1.e3 -column 1 -row 1 -sticky news
    grid columnconfigure $f1 1 -weight 1
    pack $f2 -side bottom -fill x
    pack $f1 -side top -anchor n -fill both -expand 1
    tkwait window $dlg
    set result {}
    if {[info exists [namespace current]::conf_userid]} {
	set data [subst $[namespace current]::conf_userid]
	append data : [subst $[namespace current]::conf_passwd]
	set data [$local64 $data]
	set result [list "Proxy-Authorization" "Basic $data"]
    }
    unset [namespace current]::conf_passwd
    return $result
}

proc ::tkcon::Retrieve {} {
    # A little bit'o'magic to grab the latest tkcon from CVS and
    # save it locally.  It doesn't support proxies though...
    variable PRIV

    set defExt ""
    if {[string match "windows" $::tcl_platform(platform)]} {
	set defExt ".tcl"
    }
    set file [tk_getSaveFile -title "Save Latest tkcon to ..." \
	    -defaultextension $defExt \
	    -initialdir  [file dirname $PRIV(SCRIPT)] \
	    -initialfile [file tail $PRIV(SCRIPT)] \
	    -parent $PRIV(root) \
	    -filetypes {{"Tcl Files" {.tcl .tk}} {"All Files" {*.*}}}]
    if {[string compare $file ""]} {
	package require http 2
	set headers {}
	if {[info exists PRIV(proxy)]} {
	    ::http::config -proxyfilter [namespace origin RetrieveFilter]
	    if {[lindex $PRIV(proxy) 1] != {}} {
		set headers [RetrieveAuthentication]
	    }
	}
	set token [::http::geturl $PRIV(HEADURL) \
		-headers $headers -timeout 30000]
	::http::wait $token
	set code [catch {
	    set ncode [::http::ncode $token]
	    set i 0
	    while {(($ncode >= 301) && ($ncode <= 307)) && [incr i] < 5} {
		# redirect to meta Location
		array set meta [::http::meta $token]
		::http::cleanup $token
		if {![info exists meta(Location)]} { break }
		set url $meta(Location)
		if {![string match "http*" $url]
		    && [regexp {https?://[^/]+} $PRIV(HEADURL) srvr]} {
		    # attach the same http server info
		    set url $srvr/$url
		}
		set token [::http::geturl $url -headers $headers -timeout 30000]
		::http::wait $token
		set ncode [::http::ncode $token]
	    }
	    if {$ncode != 200} {
		return "expected http return code 200, received $ncode"
	    }
	    set status [::http::status $token]
	    if {$status == "ok"} {
		set data [::http::data $token]
		regexp {Id: tkcon.tcl,v (\d+\.\d+)} $data -> rcsVersion
		regexp {VERSION\s+"(\d+\.\d+[^\"]*)"} $data -> tkconVersion
		if {(![info exists rcsVersion] || ![info exists tkconVersion])
		    && [tk_messageBox -type yesno -icon warning \
			    -parent $PRIV(root) \
			    -title "Invalid tkcon source code" \
			    -message "Source code retrieved does not appear\
			to be correct.\nContinue with save to \"$file\"?"] \
			== "no"} {
		    return "invalid tkcon source code retrieved"
		}
		set fid [open $file w]
		# We don't want newline mode to change
		fconfigure $fid -translation binary
		puts -nonewline $fid $data
		close $fid
	    } else {
		return "expected http status ok, received $status"
	    }
	} err]
	::http::cleanup $token
	if {$code == 2} {
	    tk_messageBox -type ok -icon info -parent $PRIV(root) \
		    -title "Failed to retrieve source" \
		    -message "Failed to retrieve latest tkcon source:\n$err\n$PRIV(HEADURL)"
	} elseif {$code} {
	    return -code error $err
	} else {
	    if {![info exists rcsVersion]}   { set rcsVersion   "UNKNOWN" }
	    if {![info exists tkconVersion]} { set tkconVersion "UNKNOWN" }
	    if {[tk_messageBox -type yesno -icon info -parent $PRIV(root) \
		    -title "Retrieved tkcon v$tkconVersion, RCS $rcsVersion" \
		    -message "Successfully retrieved tkcon v$tkconVersion,\
		    RCS $rcsVersion.  Shall I resource (not restart) this\
		    version now?"] == "yes"} {
		set PRIV(SCRIPT) $file
		set PRIV(version) $tkconVersion.$rcsVersion
		::tkcon::Resource
	    }
	}
    }
}

## 'send' package that handles multiple communication variants
##
# Try using Tk send first, then look for a winsend interp,
# then try dde and finally have a go at comm
namespace eval ::send {}
proc ::send::send {args} {
    set winfoInterpCmd [list ::winfo interps]
    array set opts [list displayof {} async 0]
    while {[string match -* [lindex $args 0]]} {
	switch -exact -- [lindex $args 0] {
	    -displayof {
		set opts(displayof) [Pop args 1]
		lappend winfoInterpCmd -displayof $opts(displayof)
	    }
	    -async     { set opts(async) 1 }
	    -- { Pop args ; break }
	    default {
		return -code error "bad option \"[lindex $args 0]\":\
		    should be -displayof, -async or --"
	    }
	}
	Pop args
    }
    set app [Pop args]

    if {[llength [info commands ::winfo]]
	&& [lsearch -exact [eval $winfoInterpCmd] $app] > -1} {
	set cmd [list ::send]
	if {$opts(async) == 1} {lappend cmd -async}
	if {$opts(displayof) != {}} {lappend cmd -displayof $opts(displayof)}
	lappend cmd $app
	eval $cmd $args
    } elseif {[llength [info commands ::winsend]]
	      && [lsearch -exact [::winsend interps] $app] > -1} {
	eval [list ::winsend send $app] $args
    } elseif {[llength [info commands ::dde]]
	      && [lsearch -exact [dde services TclEval {}] \
		      [list TclEval $app]] > -1} {
	eval [list ::dde eval $app] $args
    } elseif {[package provide comm] != {}
	      && [regexp {^[0-9]+$} [lindex $app 0]]} {
	#if {$opts(displayof) != {} && [llength $app] == 1} {
	#    lappend app $opts(displayof)
	#}
	eval [list ::comm::comm send $app] $args
    } else {
	return -code error "bad interp: \"$app\" could not be found"
    }
}

proc ::send::interps {args} {
    set winfoInterpCmd [list ::winfo interps]
    array set opts [list displayof {}]
    while {[string match -* [lindex $args 0]]} {
	switch -exact -- [lindex $args 0] {
	    -displayof {
		set opts(displayof) [Pop args 1]
		lappend winfoInterpCmd -displayof $opts(displayof)
	    }
	    --	       { Pop args ; break }
	    default {
		return -code error "bad option \"[lindex $args 0]\":\
		    should be -displayof or --"
	    }
	}
	Pop args
    }

    set interps {}
    if {[llength [info commands ::winfo]]} {
	set interps [concat $interps [eval $winfoInterpCmd]]
    }
    if {[llength [info commands ::winsend]]} {
	set interps [concat $interps [::winsend interps]]
    }
    if {[llength [info commands ::dde]]} {
	set servers {}
	foreach server [::dde services TclEval {}] {
	    lappend servers [lindex $server 1]
	}
	set interps [concat $interps $servers]
    }
    if {[package provide comm] != {}} {
	set interps [concat $interps [::comm::comm interps]]
    }
    return $interps
}

proc ::send::appname {args} {
    set appname {}
    if {[llength [info commands ::tk]]} {
	set appname [eval ::tk appname $args]
    }
    if {[llength [info commands ::winsend]]} {
	set appname [concat $appname [eval ::winsend appname $args]]
    }
    if {[llength [info commands ::dde]]} {
	set appname [concat $appname [eval ::dde servername $args]]
    }
    # comm? can set port num and local/global interface.
    return [lsort -unique $appname]
}

proc ::send::Pop {varname {nth 0}} {
    upvar $varname args
    set r [lindex $args $nth]
    set args [lreplace $args $nth $nth]
    return $r
}
##
## end 'send' package

## special case 'tk appname' in Tcl plugin
if {$::tkcon::PRIV(WWW)} {
    rename tk ::tkcon::_tk
    proc tk {cmd args} {
	if {$cmd == "appname"} {
	    return "tkcon/WWW"
	} else {
	    return [uplevel 1 ::tkcon::_tk [list $cmd] $args]
	}
    }
}

## ::tkcon::Resource - re'source's this script into current console
## Meant primarily for my development of this program.  It follows
## links until the ultimate source is found.
##
proc ::tkcon::Resource {} {
    uplevel \#0 {
	if {[catch {source -rsrc tkcon}]} { source $::tkcon::PRIV(SCRIPT) }
    }
    Bindings
    InitSlave $::tkcon::OPT(exec)
}

## Initialize only if we haven't yet, and do other stuff that prepares to
## run.  It only actually inits (and runs) tkcon if it is the main script.
##
proc ::tkcon::AtSource {} {
    variable PRIV

    # the info script assumes we always call this while being sourced
    set PRIV(SCRIPT) [info script]
    if {!$PRIV(WWW) && [string length $PRIV(SCRIPT)]} {
	if {[info tclversion] >= 8.4} {
	    set PRIV(SCRIPT) [file normalize $PRIV(SCRIPT)]
	} else {
	    # we use a catch here because some wrap apps choke on 'file type'
	    # because TclpLstat wasn't wrappable until 8.4.
	    catch {
		while {[string match link [file type $PRIV(SCRIPT)]]} {
		    set link [file readlink $PRIV(SCRIPT)]
		    if {[string match relative [file pathtype $link]]} {
			set PRIV(SCRIPT) \
			    [file join [file dirname $PRIV(SCRIPT)] $link]
		    } else {
			set PRIV(SCRIPT) $link
		    }
		}
		catch {unset link}
		if {[string match relative [file pathtype $PRIV(SCRIPT)]]} {
		    set PRIV(SCRIPT) [file join [pwd] $PRIV(SCRIPT)]
		}
	    }
	}
    }
    # normalize argv0 if it was tkcon to ensure that we'll be able
    # to load slaves correctly.
    if {[info exists ::argv0] && [info script] == $::argv0} {
	set ::argv0 $PRIV(SCRIPT)
    }

    if {(![info exists PRIV(root)] || ![winfo exists $PRIV(root)]) \
	    && ([info exists ::argv0] && $PRIV(SCRIPT) == $::argv0)} {
	global argv
	if {[info exists argv]} {
	    eval ::tkcon::Init $argv
	} else {
	    ::tkcon::Init
	}
    }
}
tkcon::AtSource
::tkcon::Init {*}$argv
package provide tkcon $::tkcon::VERSION