The xterm program is a terminal emulator for the X Window System. It provides DEC VT102 and Tektronix 4014 compatible terminals for programs that can't use the window system directly. If the underlying operating system supports terminal resizing capabilities (for example, the SIGWINCH signal in systems derived from 4.3bsd), xterm will use the facilities to notify programs running in the window whenever it is resized.
But the program is much older than that.
A lot of people, cited at the bottom of the manual page wrote the original xterm program, maintained by the X Consortium (later part of the Open Group - I'm well aware of the distinction, but am citing when the work was done, not who the current owner may be). There is no changelog, and it is not clear who did what. Email from Jim Gettys provides some background:
Cast of thousands...Email from Doug Mink provides more background:To give a bit of history, xterm predates X!
It was originally written as a stand-alone terminal emulator for the VS100 by Mark Vandevoorde, as my coop student the summer that X started.
Part way through the summer, it became clear that X was more useful than trying to do a stand alone program, so I had him retarget it to X. Part of why xterm's internals are so horrifying is that it was originally intended that a single process be able to drive multiple VS100 displays. Don't hold this against Mark; it isn't his fault.
I then did a lot of hacking on it, and merged several improved versions from others back in.
Notable improvements include the proper ANSI parser, that Bob McNamara did.
The Tek 4010 support came from a guy at Smithsonian Astrophysical Observatory whose name slips my mind at the moment.
Ported to X11 by Loretta Guarino.
Then hacked on at the X Consortium by uncounted people.
I was checking out the newly revised AltaVista search engine to see what was on the net about xterm, and I found your pages. I can add to the FAQ in that I was the "guy at the Smithsonian Astrophysical Observatory" Jim Gettys refers to. I am listed at the end of the man page under authors. What happened was that I was hired by SAO (after leaving the research staff at MIT) in October 1985 to write analysis software for the Spacelab 2 Infrared Telescope which was to fly on the Space Shuttle in 1985 less than six months after I was hired. I came with a tar tape full of software I had written for Unix and Tektronix terminals, but I was presented with a VS100 terminal which had an early version (X6 or so) of xterm, with no graphics capabilities. SAO is at Harvard, across Cambridge from MIT, where Jim Gettys was detailed from DEC to the X project, and Jim had connections with SAO, having worked here after college (MIT, where we had both worked at the observatory at various times); he was still sharing an apartment with an SAO colleague of mine, too. Anyway, everyone decided that since I knew Tektronix commands pretty well, and our group desparately needed the graphics capabilities, it would be a good use of my time to implement a Tektronix terminal emulator under X. So I set to work learning more C--I had only written a couple of wrappers to C I/O routines so I could use them with my Fortran software--and wrote a Tektronix emulator. The only X documentation at the time was the code itself. While I was at it, I wrote an improved Tektronix emulator for our Imagen laser printer which used the full resolution of that 300 dpi printer instead of the effective 100 dpi (i.e. jaggy) emultator distributed with the printer. The original xterm Tek emulator shared a window with the VT100 emulator, much like on the VT240 terminals which I had been using at MIT before I came to Harvard. With a VAX 750 running several VS100's, window creation was sloowww, so sharing a window was the quickest way to do things, and all of my software was written for that mode of operation, anyway. While I wrote the emulator so that my software would work on it, it was tested by the X group against a BBN graphics package, the name of which slips my mind right now.Anyway, 15 years later, I am still using xterm and some of the same mapping software I wrote the emulator for. And I am still at the Smithsonian Astrophysical Observatory.
This FAQ is oriented toward the version of xterm distributed with XFree86, which is based on the X11R6.3 xterm, with the addition of ANSI color and VT220 controls.
Xterm runs in all of the implementations of X11.
I've built and run these since I started working on xterm:
Most of these configurations have X11R5 libraries. Only minor changes are needed to make xterm work on those systems. However, with X11R6 you can obtain better locale support, as well as new features such as the active icon.
Ftp: ftp://invisible-island.net/xterm/xterm.tar.gz
There were for some time two versions of XFree86 xterm. Starting with my patch 88, there were the stable (beta) and unstable (alpha) versions, which currently are XFree86 3.3.6 and XFree86 4.x, respectively. I made only critical changes to the stable version since patch 88; ongoing development (including all non-critical fixes) was focused on the "unstable".
XFree86 4.0 should have incorporated my patch 131, but it was overlooked at the last moment (though it was listed in the ChangeLog, the patch itself was not applied). Unfortunately, the patch 130 version which was released renders colors incorrectly on most platforms, in particular FreeBSD. Ironically, the change in patch 129 which introduced this bug was designed to work around a bug which I have seen only running with FreeBSD. To compound the irony, there was some resistance at the time (2000/4/5) by that organization to incorporating the fix because it might be confused with the 4.0 release version.
X Consortium xterm provides popup menus, by pressing the control key together with the mouse button. Control right mouse button pops up the VT FONTS menu, from which you can select fonts that are specified in xterm's resources. Usually these are in increasing order of size.
XFree86 xterm provides the menu, plus a feature adapted from rxvt: pressing the shifted keypad plus or minus keys steps through the font menu selections, in order of their size.
If you want a trace of an interactive session, you should use the
script program. It records every character sent to the
screen, recording them in a file typescript.
There are two drawbacks to this approach:
typescript file.
If you want to print the contents of the screen, XFree86 xterm implements, as part of the VT100 emulation, an "attached" printer.
printAttributes to get
more easily printed output.
printerAutoClose resource to change
xterm's behavior to close the printer pipe whenever the terminal
is told to switch the printer offline.
With X Consortium xterm, you have partial support for DEC VTxxx function keys. Function keys F1 to F12 correspond to DEC's F1 to F12 (sort of). Actually, DEC's VT220 terminals do not have codes for F1 through F5. They are reserved for local functions. And the VT220 (and up) terminals have 20 function keys. So you cannot do anything with the F13 through F20 (i.e., DO, HELP and SELECT). Finally, though xterm is reputed to be VT100-compatible, it has no support for the VT100 keypad (PF1 to PF4, and the "," key).
XFree86 xterm changes the X Consortium codes for F1 to F4 to match the
VT100 PF1 to PF4, except when the emulation level is VT220 and up.
In this case, it generates the same F1 to F4 codes as X Consortium xterm.
Moreover, it adds a new resource sunKeyboard, which
tells the program whether it has only 12 function keys (i.e., a Sun or PC
keyboard).
If so (this is selectable from the popup menu), you can use the control key
with F1 to F12 to get F13 to F24, and use the "+" key on the keypad as an
alias for "," (comma).
The emulation level for XFree86 xterm is set via the resource
decTerminalID, e.g., to 220 for a VT220.
Once set, applications can set the emulation level up or down within that
limit. DEC's terminals are configured in much the same way by a setup
option.
That is the simple way, using a couple of new resources. The traditional way to get function keys involves translations. I have seen a few postings on the newsgroups that do this. Here is one from Bruce Momjian <root@candle.pha.pa.us> for a VT220:
xterm $XTERMFLAGS +rw +sb +ls $@ -tm 'erase ^? intr ^c' \
-name vt220 -title vt220 -tn xterm-220 "$@" &
with the corresponding resources:
XTerm*VT100.translations: #override \n\
<Key>Home: string(0x1b) string("[3~") \n \
<Key>End: string(0x1b) string("[4~") \n
vt220*VT100.translations: #override \n\
~Shift <Key>F1: string(0x1b) string("OP") \n \
~Shift <Key>F2: string(0x1b) string("OQ") \n \
~Shift <Key>F3: string(0x1b) string("OR") \n \
~Shift <Key>F4: string(0x1b) string("OS") \n \
~Shift <Key>F5: string(0x1b) string("[16~") \n \
~Shift <Key>F6: string(0x1b) string("[17~") \n \
~Shift <Key>F7: string(0x1b) string("[18~") \n \
~Shift <Key>F8: string(0x1b) string("[19~") \n \
~Shift <Key>F9: string(0x1b) string("[20~") \n \
~Shift <Key>F10: string(0x1b) string("[21~") \n \
~Shift <Key>F11: string(0x1b) string("[28~") \n \
~Shift <Key>F12: string(0x1b) string("[29~") \n \
Shift <Key>F1: string(0x1b) string("[23~") \n \
Shift <Key>F2: string(0x1b) string("[24~") \n \
Shift <Key>F3: string(0x1b) string("[25~") \n \
Shift <Key>F4: string(0x1b) string("[26~") \n \
Shift <Key>F5: string(0x1b) string("[K~") \n \
Shift <Key>F6: string(0x1b) string("[31~") \n \
Shift <Key>F7: string(0x1b) string("[31~") \n \
Shift <Key>F8: string(0x1b) string("[32~") \n \
Shift <Key>F9: string(0x1b) string("[33~") \n \
Shift <Key>F10: string(0x1b) string("[34~") \n \
Shift <Key>F11: string(0x1b) string("[28~") \n \
Shift <Key>F12: string(0x1b) string("[29~") \n \
<Key>Print: string(0x1b) string("[32~") \n\
<Key>Cancel: string(0x1b) string("[33~") \n\
<Key>Pause: string(0x1b) string("[34~") \n\
<Key>Insert: string(0x1b) string("[2~") \n\
<Key>Delete: string(0x1b) string("[3~") \n\
<Key>Home: string(0x1b) string("[1~") \n\
<Key>End: string(0x1b) string("[4~") \n\
<Key>Prior: string(0x1b) string("[5~") \n\
<Key>Next: string(0x1b) string("[6~") \n\
<Key>BackSpace: string(0x7f) \n\
<Key>Num_Lock: string(0x1b) string("OP") \n\
<Key>KP_Divide: string(0x1b) string("Ol") \n\
<Key>KP_Multiply: string(0x1b) string("Om") \n\
<Key>KP_Subtract: string(0x1b) string("OS") \n\
<Key>KP_Add: string(0x1b) string("OM") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_6: string(0x1b) string("Ov") \n\
<Key>KP_7: string(0x1b) string("Ow") \n\
<Key>KP_8: string(0x1b) string("Ox") \n\
<Key>KP_9: string(0x1b) string("Oy") \n
! <Key>Up: string(0x1b) string("[A") \n\
! <Key>Down: string(0x1b) string("[B") \n\
! <Key>Right: string(0x1b) string("[C") \n\
! <Key>Left: string(0x1b) string("[D") \n\
*visualBell: true
*saveLines: 1000
*cursesemul: true
*scrollKey: true
*scrollBar: true
Note that real VT220 terminals use shifted function keys to mean something
different: the user-programmable keys (i.e., DECUDK). XFree86 xterm
supports this, but the translations do not (they're using shift to select
F13 to F20).
Here's another one, from Robert Ess <ress@spd.dsccc.com>:
#!/bin/sh
# vax
# 09-17-96 Bob Ess - initial creation
# 09-26-96 Shig Katada - Additional keybindings
#
# Script file to incorporate keybindings and command line
# options for connecting to a VAX node
# Usage statement
Usage(){
echo
echo " Usage : vax -options"
echo
echo " Options: -80 for 80 column terminal"
echo " -132 for 132 column terminal"
echo " -fg colorname"
echo " -bg colorname"
echo " -fn fontname"
echo " -fb bold fontname"
echo " -host [altair] [devel] [leonis] [castor]"
echo ""
echo " Example: \"vax -80 -fg white -bg black -fn 9x15 -fb 9x15b -host castor\""
echo " Starts a VAX session with an 80 column terminal"
echo " with a black background, white foreground, a normal"
echo " font of 9x15 and a bold font of 9x15b, and connects"
echo " to the node 'castor'"
echo
echo " If you need additional help, please call Workstation"
echo " Services at x92396."
echo
exit 1
}
# Default to a black foreground with a white background.
# Use the 9x15 and 9x15bold fonts. Connect to castor by default.
#
FG=black
BG=white
HOST=castor
FONT=9x15
BFONT=9x15bold
COLS=80
# Parse the command line arguments
#
while [ $# != 0 ];
do
case $1 in
-80) COLS=80
FONT=spc12x24c
BFONT=spc12x24b
shift
;;
-132) COLS=132
FONT=9x15
BFONT=9x15b
shift
;;
-fg) shift
FG=$1
shift;;
-bg) shift
BG=$1
shift;;
-fn) shift
FONT=$1
shift;;
-fb) shift
BFONT=$1
shift;;
-host) shift
HOST=$1
shift;;
-help) Usage;;
*) Usage;;
esac
done
xterm -title "VAX" -sb -sl 1200 -geo ${COLS}x24 -fg ${FG} -bg ${BG} \
-cr red -fn ${FONT} -fb ${BFONT} -xrm \
'XTerm*VT100.translations: #override \n\
<Key>Insert: string(\001) \n\
Shift <Key>Up: scroll-back(1,lines) \n\
Shift <Key>Down: scroll-forw(1,lines) \n\
Shift <Key>Right: string(0x1b) string("f") \n\
Shift <Key>Left: string(0x1b) string("b") \n\
Shift <Key>Delete: string(0x1b) string(0x08) \n\
Shift <Key>Tab: string(0x1b) string("*") \n\
<Key>0x1000FF0D: scroll-back(1,page) \n\
<Key>0x1000FF0E: scroll-forw(1,page) \n\
<Key>0x1000FF09: string(\010) \n\
<Key>0x1000FF0A: string(\005) \n\
<Key>BackSpace: string(0xff) \n\
<Key>Select: select-start() \n\
<Key>0x1000FF02: select-end(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF02: select-end(CLIPBOARD) \n\
<Key>0x1000FF04: insert-selection(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF04: insert-selection(CLIPBOARD) \n\
<Key>F1: string(0x1b) string("OP") \n\
<Key>F2: string(0x1b) string("OQ") \n\
<Key>F3: string(0x1b) string("OR") \n\
<Key>F4: string(0x1b) string("OS") \n\
<Key>F5: string(0x1b) string("OA") \n\
<Key>F11: string(0x1b) string("[23~") \n\
<Key>F12: string(0x1b) string("[24~") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_Divide: string(0x1b) string("OP") \n\
<Key>KP_Multiply: string(0x1b) string("[29~") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Subtract: string(0x1b) string("Om") \n\
<Key>KP_Add: string(0x1b) string("Ol") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Btn1Down>: select-start() \n\
<Btn1Motion>: select-extend() \n\
<Btn1Up>: select-end(PRIMARY,CUT_BUFFER0) \n\
Button1<Btn2Down>: select-end(CLIPBOARD) \n\
Button1<Btn2Up>: ignore()' \
-e telnet $HOST &
Finally (for the moment) is a further modification of Robert Ess's script
by Erik Ahlefeldt,
<oahlefel@metz.une.edu.au>.
From his readme file, for vmsterm:
This script is for people who wish to connect from a Linux or Unix computer to a VMS computer using telnet and get a good VT100 or VT220 emulation. The key mappings have been specifically designed to emulate the VT terminal auxiliary numeric keypad, so that you can use VMS EDT and TPU editors, as well as the many VMS applications use keys PF1 to PF4. The script should work with any recent version of Xterm using a standard extended IBM PC keyboard or a Sun keyboard.a summary of the keyboard mapping:About the keymappings. First the auxiliary numeric keypad. My prime objective with these mappings was to produce a setup that I could use with the EDT and TPU editors which make extensive use of the numeric keypad. The top row of keys PC numeric keypad (Num Lock, Divide, Multiply, Subtract) are where you find PF1, PF2, PF3, PF4 on a VT keyboard, so I have mapped them to PF1 thru PF4. The PC numeric keypad Add key (+) takes up the space of two keys which are Minus and Comma on the VT keyboard - I have mapped it to Comma (Delete Character in the EDT editor). I have then used the PC Pause key to map to VT key Minus (Delete Word in the EDT editor). The remaining keys on the auxiliary numeric keypad are the same for PC and VT.
The six keys between the main and numeric keypads on the PC (Insert, Home, Page Up, Delete End, Page Down) are usually mapped to the VT keys by either position or by (approximate) function. As I rarely use these keys I have mapped them by function as follows: PC key Insert to VT Insert Here, PC Home to VT Find, PC Page Up to VT Prev, PC Delete to VT Remove, PC End to VT Select, PC Page Down to VT Next.
- Function keys.
- There are 12 function keys on the PC keyboard and 20 on the VT keyboard, so I map PC F1 thru F12 to VT F1 thru F12 (except for F1 thru F5 as noted below) and PC Shift F1 thru Shift F10 to VT F11 thru F20.
The VT keys F1 thru F5 are local hardware function keys so there is nothing to emulate, however some PC to VT emulations in the past have mapped PF1 thru PF4 here, so I have done that too, even though they are already mapped on the auxiliary numeric keypad.
- Xterm functionality.
- You lose some xterm functions when you remap the keyboard, however this script implements a scroll back buffer of 1000 lines which you scroll through using Shift and Up (a.k.a. Up Arrow or Cursor Up key) or Shift and Down.
PC Key maps to VT Key. ------ ------ F1 PF1 F2 PF2 F3 PF3 F4 PF4 F5 unused F6 F6 F7 F7 F8 F8 F9 F9 F10 F10 F11 F11 F12 F12 Shift F1 F11 Shift F2 F12 Shift F3 F13 Shift F4 F14 Shift F5 F15 (Help) Shift F6 F16 (Do) Shift F7 F17 Shift F8 F18 Shift F9 F19 Shift F10 F20 Shift F11 F11 Shift F12 F12 Print Help (F15) Cancel Do (F16) Pause Keypad Minus Insert Insert Here Delete Remove Home Find End Select Prior Prev Next Next BackSpace Next Backn order of their size.How do I print the screen?
That depends on why you want to print it.If you want a trace of an interactive session, you should use the script program. It records every character sent to the screen, recording them in a file
typescript. There are two drawbacks to this approach:
typescript file.
If you want to print the contents of the screen, XFree86 xterm implements, as part of the VT100 emulation, an "attached" printer.
printAttributes to get
more easily printed output.
printerAutoClose resource to change
xterm's behavior to close the printer pipe whenever the terminal
is told to switch the printer offline.
With X Consortium xterm, you have partial support for DEC VTxxx function keys. Function keys F1 to F12 correspond to DEC's F1 to F12 (sort of). Actually, DEC's VT220 terminals do not have codes for F1 through F5. They are reserved for local functions. And the VT220 (and up) terminals have 20 function keys. So you cannot do anything with the F13 through F20 (i.e., DO, HELP and SELECT). Finally, though xterm is reputed to be VT100-compatible, it has no support for the VT100 keypad (PF1 to PF4, and the "," key).
XFree86 xterm changes the X Consortium codes for F1 to F4 to match the
VT100 PF1 to PF4, except when the emulation level is VT220 and up.
In this case, it generates the same F1 to F4 codes as X Consortium xterm.
Moreover, it adds a new resource sunKeyboard, which
tells the program whether it has only 12 function keys (i.e., a Sun or PC
keyboard).
If so (this is selectable from the popup menu), you can use the control key
with F1 to F12 to get F13 to F24, and use the "+" key on the keypad as an
alias for "," (comma).
The emulation level for XFree86 xterm is set via the resource
decTerminalID, e.g., to 220 for a VT220.
Once set, applications can set the emulation level up or down within that
limit. DEC's terminals are configured in much the same way by a setup
option.
That is the simple way, using a couple of new resources. The traditional way to get function keys involves translations. I have seen a few postings on the newsgroups that do this. Here is one from Bruce Momjian <root@candle.pha.pa.us> for a VT220:
xterm $XTERMFLAGS +rw +sb +ls $@ -tm 'erase ^? intr ^c' \
-name vt220 -title vt220 -tn xterm-220 "$@" &
with the corresponding resources:
XTerm*VT100.translations: #override \n\
<Key>Home: string(0x1b) string("[3~") \n \
<Key>End: string(0x1b) string("[4~") \n
vt220*VT100.translations: #override \n\
~Shift <Key>F1: string(0x1b) string("OP") \n \
~Shift <Key>F2: string(0x1b) string("OQ") \n \
~Shift <Key>F3: string(0x1b) string("OR") \n \
~Shift <Key>F4: string(0x1b) string("OS") \n \
~Shift <Key>F5: string(0x1b) string("[16~") \n \
~Shift <Key>F6: string(0x1b) string("[17~") \n \
~Shift <Key>F7: string(0x1b) string("[18~") \n \
~Shift <Key>F8: string(0x1b) string("[19~") \n \
~Shift <Key>F9: string(0x1b) string("[20~") \n \
~Shift <Key>F10: string(0x1b) string("[21~") \n \
~Shift <Key>F11: string(0x1b) string("[28~") \n \
~Shift <Key>F12: string(0x1b) string("[29~") \n \
Shift <Key>F1: string(0x1b) string("[23~") \n \
Shift <Key>F2: string(0x1b) string("[24~") \n \
Shift <Key>F3: string(0x1b) string("[25~") \n \
Shift <Key>F4: string(0x1b) string("[26~") \n \
Shift <Key>F5: string(0x1b) string("[K~") \n \
Shift <Key>F6: string(0x1b) string("[31~") \n \
Shift <Key>F7: string(0x1b) string("[31~") \n \
Shift <Key>F8: string(0x1b) string("[32~") \n \
Shift <Key>F9: string(0x1b) string("[33~") \n \
Shift <Key>F10: string(0x1b) string("[34~") \n \
Shift <Key>F11: string(0x1b) string("[28~") \n \
Shift <Key>F12: string(0x1b) string("[29~") \n \
<Key>Print: string(0x1b) string("[32~") \n\
<Key>Cancel: string(0x1b) string("[33~") \n\
<Key>Pause: string(0x1b) string("[34~") \n\
<Key>Insert: string(0x1b) string("[2~") \n\
<Key>Delete: string(0x1b) string("[3~") \n\
<Key>Home: string(0x1b) string("[1~") \n\
<Key>End: string(0x1b) string("[4~") \n\
<Key>Prior: string(0x1b) string("[5~") \n\
<Key>Next: string(0x1b) string("[6~") \n\
<Key>BackSpace: string(0x7f) \n\
<Key>Num_Lock: string(0x1b) string("OP") \n\
<Key>KP_Divide: string(0x1b) string("Ol") \n\
<Key>KP_Multiply: string(0x1b) string("Om") \n\
<Key>KP_Subtract: string(0x1b) string("OS") \n\
<Key>KP_Add: string(0x1b) string("OM") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_6: string(0x1b) string("Ov") \n\
<Key>KP_7: string(0x1b) string("Ow") \n\
<Key>KP_8: string(0x1b) string("Ox") \n\
<Key>KP_9: string(0x1b) string("Oy") \n
! <Key>Up: string(0x1b) string("[A") \n\
! <Key>Down: string(0x1b) string("[B") \n\
! <Key>Right: string(0x1b) string("[C") \n\
! <Key>Left: string(0x1b) string("[D") \n\
*visualBell: true
*saveLines: 1000
*cursesemul: true
*scrollKey: true
*scrollBar: true
Note that real VT220 terminals use shifted function keys to mean something
different: the user-programmable keys (i.e., DECUDK). XFree86 xterm
supports this, but the translations do not (they're using shift to select
F13 to F20).
Here's another one, from Robert Ess <ress@spd.dsccc.com>:
#!/bin/sh
# vax
# 09-17-96 Bob Ess - initial creation
# 09-26-96 Shig Katada - Additional keybindings
#
# Script file to incorporate keybindings and command line
# options for connecting to a VAX node
# Usage statement
Usage(){
echo
echo " Usage : vax -options"
echo
echo " Options: -80 for 80 column terminal"
echo " -132 for 132 column terminal"
echo " -fg colorname"
echo " -bg colorname"
echo " -fn fontname"
echo " -fb bold fontname"
echo " -host [altair] [devel] [leonis] [castor]"
echo ""
echo " Example: \"vax -80 -fg white -bg black -fn 9x15 -fb 9x15b -host castor\""
echo " Starts a VAX session with an 80 column terminal"
echo " with a black background, white foreground, a normal"
echo " font of 9x15 and a bold font of 9x15b, and connects"
echo " to the node 'castor'"
echo
echo " If you need additional help, please call Workstation"
echo " Services at x92396."
echo
exit 1
}
# Default to a black foreground with a white background.
# Use the 9x15 and 9x15bold fonts. Connect to castor by default.
#
FG=black
BG=white
HOST=castor
FONT=9x15
BFONT=9x15bold
COLS=80
# Parse the command line arguments
#
while [ $# != 0 ];
do
case $1 in
-80) COLS=80
FONT=spc12x24c
BFONT=spc12x24b
shift
;;
-132) COLS=132
FONT=9x15
BFONT=9x15b
shift
;;
-fg) shift
FG=$1
shift;;
-bg) shift
BG=$1
shift;;
-fn) shift
FONT=$1
shift;;
-fb) shift
BFONT=$1
shift;;
-host) shift
HOST=$1
shift;;
-help) Usage;;
*) Usage;;
esac
done
xterm -title "VAX" -sb -sl 1200 -geo ${COLS}x24 -fg ${FG} -bg ${BG} \
-cr red -fn ${FONT} -fb ${BFONT} -xrm \
'XTerm*VT100.translations: #override \n\
<Key>Insert: string(\001) \n\
Shift <Key>Up: scroll-back(1,lines) \n\
Shift <Key>Down: scroll-forw(1,lines) \n\
Shift <Key>Right: string(0x1b) string("f") \n\
Shift <Key>Left: string(0x1b) string("b") \n\
Shift <Key>Delete: string(0x1b) string(0x08) \n\
Shift <Key>Tab: string(0x1b) string("*") \n\
<Key>0x1000FF0D: scroll-back(1,page) \n\
<Key>0x1000FF0E: scroll-forw(1,page) \n\
<Key>0x1000FF09: string(\010) \n\
<Key>0x1000FF0A: string(\005) \n\
<Key>BackSpace: string(0xff) \n\
<Key>Select: select-start() \n\
<Key>0x1000FF02: select-end(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF02: select-end(CLIPBOARD) \n\
<Key>0x1000FF04: insert-selection(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF04: insert-selection(CLIPBOARD) \n\
<Key>F1: string(0x1b) string("OP") \n\
<Key>F2: string(0x1b) string("OQ") \n\
<Key>F3: string(0x1b) string("OR") \n\
<Key>F4: string(0x1b) string("OS") \n\
<Key>F5: string(0x1b) string("OA") \n\
<Key>F11: string(0x1b) string("[23~") \n\
<Key>F12: string(0x1b) string("[24~") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_Divide: string(0x1b) string("OP") \n\
<Key>KP_Multiply: string(0x1b) string("[29~") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Subtract: string(0x1b) string("Om") \n\
<Key>KP_Add: string(0x1b) string("Ol") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Btn1Down>: select-start() \n\
<Btn1Motion>: select-extend() \n\
<Btn1Up>: select-end(PRIMARY,CUT_BUFFER0) \n\
Button1<Btn2Down>: select-end(CLIPBOARD) \n\
Button1<Btn2Up>: ignore()' \
-e telnet $HOST &
Finally (for the moment) is a further modification of Robert Ess's script
by Erik Ahlefeldt,
<oahlefel@metz.une.edu.au>.
From his readme file, for vmsterm:
This script is for people who wish to connect from a Linux or Unix computer to a VMS computer using telnet and get a good VT100 or VT220 emulation. The key mappings have been specifically designed to emulate the VT terminal auxiliary numeric keypad, so that you can use VMS EDT and TPU editors, as well as the many VMS applications use keys PF1 to PF4. The script should work with any recent version of Xterm using a standard extended IBM PC keyboard or a Sun keyboard.a summary of the keyboard mapping:About the keymappings. First the auxiliary numeric keypad. My prime objective with these mappings was to produce a setup that I could use with the EDT and TPU editors which make extensive use of the numeric keypad. The top row of keys PC numeric keypad (Num Lock, Divide, Multiply, Subtract) are where you find PF1, PF2, PF3, PF4 on a VT keyboard, so I have mapped them to PF1 thru PF4. The PC numeric keypad Add key (+) takes up the space of two keys which are Minus and Comma on the VT keyboard - I have mapped it to Comma (Delete Character in the EDT editor). I have then used the PC Pause key to map to VT key Minus (Delete Word in the EDT editor). The remaining keys on the auxiliary numeric keypad are the same for PC and VT.
The six keys between the main and numeric keypads on the PC (Insert, Home, Page Up, Delete End, Page Down) are usually mapped to the VT keys by either position or by (approximate) function. As I rarely use these keys I have mapped them by function as follows: PC key Insert to VT Insert Here, PC Home to VT Find, PC Page Up to VT Prev, PC Delete to VT Remove, PC End to VT Select, PC Page Down to VT Next.
- Function keys.
- There are 12 function keys on the PC keyboard and 20 on the VT keyboard, so I map PC F1 thru F12 to VT F1 thru F12 (except for F1 thru F5 as noted below) and PC Shift F1 thru Shift F10 to VT F11 thru F20.
The VT keys F1 thru F5 are local hardware function keys so there is nothing to emulate, however some PC to VT emulations in the past have mapped PF1 thru PF4 here, so I have done that too, even though they are already mapped on the auxiliary numeric keypad.
- Xterm functionality.
- You lose some xterm functions when you remap the keyboard, however this script implements a scroll back buffer of 1000 lines which you scroll through using Shift and Up (a.k.a. Up Arrow or Cursor Up key) or Shift and Down.
PC Key maps to VT Key. ------ ------ F1 PF1 F2 PF2 F3 PF3 F4 PF4 F5 unused F6 F6 F7 F7 F8 F8 F9 F9 F10 F10 F11 F11 F12 F12 Shift F1 F11 Shift F2 F12 Shift F3 F13 Shift F4 F14 Shift F5 F15 (Help) Shift F6 F16 (Do) Shift F7 F17 Shift F8 F18 Shift F9 F19 Shift F10 F20 Shift F11 F11 Shift F12 F12 Print Help (F15) Cancel Do (F16) Pause Keypad Minus Insert Insert Here Delete Remove Home Find End Select Prior Prev Next Next BackSpace Next Backn order of their size.How do I print the screen?
That depends on why you want to print it.If you want a trace of an interactive session, you should use the script program. It records every character sent to the screen, recording them in a file
typescript. There are two drawbacks to this approach:
typescript file.
If you want to print the contents of the screen, XFree86 xterm implements, as part of the VT100 emulation, an "attached" printer.
printAttributes to get
more easily printed output.
printerAutoClose resource to change
xterm's behavior to close the printer pipe whenever the terminal
is told to switch the printer offline.
With X Consortium xterm, you have partial support for DEC VTxxx function keys. Function keys F1 to F12 correspond to DEC's F1 to F12 (sort of). Actually, DEC's VT220 terminals do not have codes for F1 through F5. They are reserved for local functions. And the VT220 (and up) terminals have 20 function keys. So you cannot do anything with the F13 through F20 (i.e., DO, HELP and SELECT). Finally, though xterm is reputed to be VT100-compatible, it has no support for the VT100 keypad (PF1 to PF4, and the "," key).
XFree86 xterm changes the X Consortium codes for F1 to F4 to match the
VT100 PF1 to PF4, except when the emulation level is VT220 and up.
In this case, it generates the same F1 to F4 codes as X Consortium xterm.
Moreover, it adds a new resource sunKeyboard, which
tells the program whether it has only 12 function keys (i.e., a Sun or PC
keyboard).
If so (this is selectable from the popup menu), you can use the control key
with F1 to F12 to get F13 to F24, and use the "+" key on the keypad as an
alias for "," (comma).
The emulation level for XFree86 xterm is set via the resource
decTerminalID, e.g., to 220 for a VT220.
Once set, applications can set the emulation level up or down within that
limit. DEC's terminals are configured in much the same way by a setup
option.
That is the simple way, using a couple of new resources. The traditional way to get function keys involves translations. I have seen a few postings on the newsgroups that do this. Here is one from Bruce Momjian <root@candle.pha.pa.us> for a VT220:
xterm $XTERMFLAGS +rw +sb +ls $@ -tm 'erase ^? intr ^c' \
-name vt220 -title vt220 -tn xterm-220 "$@" &
with the corresponding resources:
XTerm*VT100.translations: #override \n\
<Key>Home: string(0x1b) string("[3~") \n \
<Key>End: string(0x1b) string("[4~") \n
vt220*VT100.translations: #override \n\
~Shift <Key>F1: string(0x1b) string("OP") \n \
~Shift <Key>F2: string(0x1b) string("OQ") \n \
~Shift <Key>F3: string(0x1b) string("OR") \n \
~Shift <Key>F4: string(0x1b) string("OS") \n \
~Shift <Key>F5: string(0x1b) string("[16~") \n \
~Shift <Key>F6: string(0x1b) string("[17~") \n \
~Shift <Key>F7: string(0x1b) string("[18~") \n \
~Shift <Key>F8: string(0x1b) string("[19~") \n \
~Shift <Key>F9: string(0x1b) string("[20~") \n \
~Shift <Key>F10: string(0x1b) string("[21~") \n \
~Shift <Key>F11: string(0x1b) string("[28~") \n \
~Shift <Key>F12: string(0x1b) string("[29~") \n \
Shift <Key>F1: string(0x1b) string("[23~") \n \
Shift <Key>F2: string(0x1b) string("[24~") \n \
Shift <Key>F3: string(0x1b) string("[25~") \n \
Shift <Key>F4: string(0x1b) string("[26~") \n \
Shift <Key>F5: string(0x1b) string("[K~") \n \
Shift <Key>F6: string(0x1b) string("[31~") \n \
Shift <Key>F7: string(0x1b) string("[31~") \n \
Shift <Key>F8: string(0x1b) string("[32~") \n \
Shift <Key>F9: string(0x1b) string("[33~") \n \
Shift <Key>F10: string(0x1b) string("[34~") \n \
Shift <Key>F11: string(0x1b) string("[28~") \n \
Shift <Key>F12: string(0x1b) string("[29~") \n \
<Key>Print: string(0x1b) string("[32~") \n\
<Key>Cancel: string(0x1b) string("[33~") \n\
<Key>Pause: string(0x1b) string("[34~") \n\
<Key>Insert: string(0x1b) string("[2~") \n\
<Key>Delete: string(0x1b) string("[3~") \n\
<Key>Home: string(0x1b) string("[1~") \n\
<Key>End: string(0x1b) string("[4~") \n\
<Key>Prior: string(0x1b) string("[5~") \n\
<Key>Next: string(0x1b) string("[6~") \n\
<Key>BackSpace: string(0x7f) \n\
<Key>Num_Lock: string(0x1b) string("OP") \n\
<Key>KP_Divide: string(0x1b) string("Ol") \n\
<Key>KP_Multiply: string(0x1b) string("Om") \n\
<Key>KP_Subtract: string(0x1b) string("OS") \n\
<Key>KP_Add: string(0x1b) string("OM") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_6: string(0x1b) string("Ov") \n\
<Key>KP_7: string(0x1b) string("Ow") \n\
<Key>KP_8: string(0x1b) string("Ox") \n\
<Key>KP_9: string(0x1b) string("Oy") \n
! <Key>Up: string(0x1b) string("[A") \n\
! <Key>Down: string(0x1b) string("[B") \n\
! <Key>Right: string(0x1b) string("[C") \n\
! <Key>Left: string(0x1b) string("[D") \n\
*visualBell: true
*saveLines: 1000
*cursesemul: true
*scrollKey: true
*scrollBar: true
Note that real VT220 terminals use shifted function keys to mean something
different: the user-programmable keys (i.e., DECUDK). XFree86 xterm
supports this, but the translations do not (they're using shift to select
F13 to F20).
Here's another one, from Robert Ess <ress@spd.dsccc.com>:
#!/bin/sh
# vax
# 09-17-96 Bob Ess - initial creation
# 09-26-96 Shig Katada - Additional keybindings
#
# Script file to incorporate keybindings and command line
# options for connecting to a VAX node
# Usage statement
Usage(){
echo
echo " Usage : vax -options"
echo
echo " Options: -80 for 80 column terminal"
echo " -132 for 132 column terminal"
echo " -fg colorname"
echo " -bg colorname"
echo " -fn fontname"
echo " -fb bold fontname"
echo " -host [altair] [devel] [leonis] [castor]"
echo ""
echo " Example: \"vax -80 -fg white -bg black -fn 9x15 -fb 9x15b -host castor\""
echo " Starts a VAX session with an 80 column terminal"
echo " with a black background, white foreground, a normal"
echo " font of 9x15 and a bold font of 9x15b, and connects"
echo " to the node 'castor'"
echo
echo " If you need additional help, please call Workstation"
echo " Services at x92396."
echo
exit 1
}
# Default to a black foreground with a white background.
# Use the 9x15 and 9x15bold fonts. Connect to castor by default.
#
FG=black
BG=white
HOST=castor
FONT=9x15
BFONT=9x15bold
COLS=80
# Parse the command line arguments
#
while [ $# != 0 ];
do
case $1 in
-80) COLS=80
FONT=spc12x24c
BFONT=spc12x24b
shift
;;
-132) COLS=132
FONT=9x15
BFONT=9x15b
shift
;;
-fg) shift
FG=$1
shift;;
-bg) shift
BG=$1
shift;;
-fn) shift
FONT=$1
shift;;
-fb) shift
BFONT=$1
shift;;
-host) shift
HOST=$1
shift;;
-help) Usage;;
*) Usage;;
esac
done
xterm -title "VAX" -sb -sl 1200 -geo ${COLS}x24 -fg ${FG} -bg ${BG} \
-cr red -fn ${FONT} -fb ${BFONT} -xrm \
'XTerm*VT100.translations: #override \n\
<Key>Insert: string(\001) \n\
Shift <Key>Up: scroll-back(1,lines) \n\
Shift <Key>Down: scroll-forw(1,lines) \n\
Shift <Key>Right: string(0x1b) string("f") \n\
Shift <Key>Left: string(0x1b) string("b") \n\
Shift <Key>Delete: string(0x1b) string(0x08) \n\
Shift <Key>Tab: string(0x1b) string("*") \n\
<Key>0x1000FF0D: scroll-back(1,page) \n\
<Key>0x1000FF0E: scroll-forw(1,page) \n\
<Key>0x1000FF09: string(\010) \n\
<Key>0x1000FF0A: string(\005) \n\
<Key>BackSpace: string(0xff) \n\
<Key>Select: select-start() \n\
<Key>0x1000FF02: select-end(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF02: select-end(CLIPBOARD) \n\
<Key>0x1000FF04: insert-selection(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF04: insert-selection(CLIPBOARD) \n\
<Key>F1: string(0x1b) string("OP") \n\
<Key>F2: string(0x1b) string("OQ") \n\
<Key>F3: string(0x1b) string("OR") \n\
<Key>F4: string(0x1b) string("OS") \n\
<Key>F5: string(0x1b) string("OA") \n\
<Key>F11: string(0x1b) string("[23~") \n\
<Key>F12: string(0x1b) string("[24~") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_Divide: string(0x1b) string("OP") \n\
<Key>KP_Multiply: string(0x1b) string("[29~") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Subtract: string(0x1b) string("Om") \n\
<Key>KP_Add: string(0x1b) string("Ol") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Btn1Down>: select-start() \n\
<Btn1Motion>: select-extend() \n\
<Btn1Up>: select-end(PRIMARY,CUT_BUFFER0) \n\
Button1<Btn2Down>: select-end(CLIPBOARD) \n\
Button1<Btn2Up>: ignore()' \
-e telnet $HOST &
Finally (for the moment) is a further modification of Robert Ess's script
by Erik Ahlefeldt,
<oahlefel@metz.une.edu.au>.
From his readme file, for vmsterm:
This script is for people who wish to connect from a Linux or Unix computer to a VMS computer using telnet and get a good VT100 or VT220 emulation. The key mappings have been specifically designed to emulate the VT terminal auxiliary numeric keypad, so that you can use VMS EDT and TPU editors, as well as the many VMS applications use keys PF1 to PF4. The script should work with any recent version of Xterm using a standard extended IBM PC keyboard or a Sun keyboard.a summary of the keyboard mapping:About the keymappings. First the auxiliary numeric keypad. My prime objective with these mappings was to produce a setup that I could use with the EDT and TPU editors which make extensive use of the numeric keypad. The top row of keys PC numeric keypad (Num Lock, Divide, Multiply, Subtract) are where you find PF1, PF2, PF3, PF4 on a VT keyboard, so I have mapped them to PF1 thru PF4. The PC numeric keypad Add key (+) takes up the space of two keys which are Minus and Comma on the VT keyboard - I have mapped it to Comma (Delete Character in the EDT editor). I have then used the PC Pause key to map to VT key Minus (Delete Word in the EDT editor). The remaining keys on the auxiliary numeric keypad are the same for PC and VT.
The six keys between the main and numeric keypads on the PC (Insert, Home, Page Up, Delete End, Page Down) are usually mapped to the VT keys by either position or by (approximate) function. As I rarely use these keys I have mapped them by function as follows: PC key Insert to VT Insert Here, PC Home to VT Find, PC Page Up to VT Prev, PC Delete to VT Remove, PC End to VT Select, PC Page Down to VT Next.
- Function keys.
- There are 12 function keys on the PC keyboard and 20 on the VT keyboard, so I map PC F1 thru F12 to VT F1 thru F12 (except for F1 thru F5 as noted below) and PC Shift F1 thru Shift F10 to VT F11 thru F20.
The VT keys F1 thru F5 are local hardware function keys so there is nothing to emulate, however some PC to VT emulations in the past have mapped PF1 thru PF4 here, so I have done that too, even though they are already mapped on the auxiliary numeric keypad.
- Xterm functionality.
- You lose some xterm functions when you remap the keyboard, however this script implements a scroll back buffer of 1000 lines which you scroll through using Shift and Up (a.k.a. Up Arrow or Cursor Up key) or Shift and Down.
PC Key maps to VT Key. ------ ------ F1 PF1 F2 PF2 F3 PF3 F4 PF4 F5 unused F6 F6 F7 F7 F8 F8 F9 F9 F10 F10 F11 F11 F12 F12 Shift F1 F11 Shift F2 F12 Shift F3 F13 Shift F4 F14 Shift F5 F15 (Help) Shift F6 F16 (Do) Shift F7 F17 Shift F8 F18 Shift F9 F19 Shift F10 F20 Shift F11 F11 Shift F12 F12 Print Help (F15) Cancel Do (F16) Pause Keypad Minus Insert Insert Here Delete Remove Home Find End Select Prior Prev Next Next BackSpace Next Backn order of their size.How do I print the screen?
That depends on why you want to print it.If you want a trace of an interactive session, you should use the script program. It records every character sent to the screen, recording them in a file
typescript. There are two drawbacks to this approach:
typescript file.
If you want to print the contents of the screen, XFree86 xterm implements, as part of the VT100 emulation, an "attached" printer.
printAttributes to get
more easily printed output.
printerAutoClose resource to change
xterm's behavior to close the printer pipe whenever the terminal
is told to switch the printer offline.
With X Consortium xterm, you have partial support for DEC VTxxx function keys. Function keys F1 to F12 correspond to DEC's F1 to F12 (sort of). Actually, DEC's VT220 terminals do not have codes for F1 through F5. They are reserved for local functions. And the VT220 (and up) terminals have 20 function keys. So you cannot do anything with the F13 through F20 (i.e., DO, HELP and SELECT). Finally, though xterm is reputed to be VT100-compatible, it has no support for the VT100 keypad (PF1 to PF4, and the "," key).
XFree86 xterm changes the X Consortium codes for F1 to F4 to match the
VT100 PF1 to PF4, except when the emulation level is VT220 and up.
In this case, it generates the same F1 to F4 codes as X Consortium xterm.
Moreover, it adds a new resource sunKeyboard, which
tells the program whether it has only 12 function keys (i.e., a Sun or PC
keyboard).
If so (this is selectable from the popup menu), you can use the control key
with F1 to F12 to get F13 to F24, and use the "+" key on the keypad as an
alias for "," (comma).
The emulation level for XFree86 xterm is set via the resource
decTerminalID, e.g., to 220 for a VT220.
Once set, applications can set the emulation level up or down within that
limit. DEC's terminals are configured in much the same way by a setup
option.
That is the simple way, using a couple of new resources. The traditional way to get function keys involves translations. I have seen a few postings on the newsgroups that do this. Here is one from Bruce Momjian <root@candle.pha.pa.us> for a VT220:
xterm $XTERMFLAGS +rw +sb +ls $@ -tm 'erase ^? intr ^c' \
-name vt220 -title vt220 -tn xterm-220 "$@" &
with the corresponding resources:
XTerm*VT100.translations: #override \n\
<Key>Home: string(0x1b) string("[3~") \n \
<Key>End: string(0x1b) string("[4~") \n
vt220*VT100.translations: #override \n\
~Shift <Key>F1: string(0x1b) string("OP") \n \
~Shift <Key>F2: string(0x1b) string("OQ") \n \
~Shift <Key>F3: string(0x1b) string("OR") \n \
~Shift <Key>F4: string(0x1b) string("OS") \n \
~Shift <Key>F5: string(0x1b) string("[16~") \n \
~Shift <Key>F6: string(0x1b) string("[17~") \n \
~Shift <Key>F7: string(0x1b) string("[18~") \n \
~Shift <Key>F8: string(0x1b) string("[19~") \n \
~Shift <Key>F9: string(0x1b) string("[20~") \n \
~Shift <Key>F10: string(0x1b) string("[21~") \n \
~Shift <Key>F11: string(0x1b) string("[28~") \n \
~Shift <Key>F12: string(0x1b) string("[29~") \n \
Shift <Key>F1: string(0x1b) string("[23~") \n \
Shift <Key>F2: string(0x1b) string("[24~") \n \
Shift <Key>F3: string(0x1b) string("[25~") \n \
Shift <Key>F4: string(0x1b) string("[26~") \n \
Shift <Key>F5: string(0x1b) string("[K~") \n \
Shift <Key>F6: string(0x1b) string("[31~") \n \
Shift <Key>F7: string(0x1b) string("[31~") \n \
Shift <Key>F8: string(0x1b) string("[32~") \n \
Shift <Key>F9: string(0x1b) string("[33~") \n \
Shift <Key>F10: string(0x1b) string("[34~") \n \
Shift <Key>F11: string(0x1b) string("[28~") \n \
Shift <Key>F12: string(0x1b) string("[29~") \n \
<Key>Print: string(0x1b) string("[32~") \n\
<Key>Cancel: string(0x1b) string("[33~") \n\
<Key>Pause: string(0x1b) string("[34~") \n\
<Key>Insert: string(0x1b) string("[2~") \n\
<Key>Delete: string(0x1b) string("[3~") \n\
<Key>Home: string(0x1b) string("[1~") \n\
<Key>End: string(0x1b) string("[4~") \n\
<Key>Prior: string(0x1b) string("[5~") \n\
<Key>Next: string(0x1b) string("[6~") \n\
<Key>BackSpace: string(0x7f) \n\
<Key>Num_Lock: string(0x1b) string("OP") \n\
<Key>KP_Divide: string(0x1b) string("Ol") \n\
<Key>KP_Multiply: string(0x1b) string("Om") \n\
<Key>KP_Subtract: string(0x1b) string("OS") \n\
<Key>KP_Add: string(0x1b) string("OM") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_6: string(0x1b) string("Ov") \n\
<Key>KP_7: string(0x1b) string("Ow") \n\
<Key>KP_8: string(0x1b) string("Ox") \n\
<Key>KP_9: string(0x1b) string("Oy") \n
! <Key>Up: string(0x1b) string("[A") \n\
! <Key>Down: string(0x1b) string("[B") \n\
! <Key>Right: string(0x1b) string("[C") \n\
! <Key>Left: string(0x1b) string("[D") \n\
*visualBell: true
*saveLines: 1000
*cursesemul: true
*scrollKey: true
*scrollBar: true
Note that real VT220 terminals use shifted function keys to mean something
different: the user-programmable keys (i.e., DECUDK). XFree86 xterm
supports this, but the translations do not (they're using shift to select
F13 to F20).
Here's another one, from Robert Ess <ress@spd.dsccc.com>:
#!/bin/sh
# vax
# 09-17-96 Bob Ess - initial creation
# 09-26-96 Shig Katada - Additional keybindings
#
# Script file to incorporate keybindings and command line
# options for connecting to a VAX node
# Usage statement
Usage(){
echo
echo " Usage : vax -options"
echo
echo " Options: -80 for 80 column terminal"
echo " -132 for 132 column terminal"
echo " -fg colorname"
echo " -bg colorname"
echo " -fn fontname"
echo " -fb bold fontname"
echo " -host [altair] [devel] [leonis] [castor]"
echo ""
echo " Example: \"vax -80 -fg white -bg black -fn 9x15 -fb 9x15b -host castor\""
echo " Starts a VAX session with an 80 column terminal"
echo " with a black background, white foreground, a normal"
echo " font of 9x15 and a bold font of 9x15b, and connects"
echo " to the node 'castor'"
echo
echo " If you need additional help, please call Workstation"
echo " Services at x92396."
echo
exit 1
}
# Default to a black foreground with a white background.
# Use the 9x15 and 9x15bold fonts. Connect to castor by default.
#
FG=black
BG=white
HOST=castor
FONT=9x15
BFONT=9x15bold
COLS=80
# Parse the command line arguments
#
while [ $# != 0 ];
do
case $1 in
-80) COLS=80
FONT=spc12x24c
BFONT=spc12x24b
shift
;;
-132) COLS=132
FONT=9x15
BFONT=9x15b
shift
;;
-fg) shift
FG=$1
shift;;
-bg) shift
BG=$1
shift;;
-fn) shift
FONT=$1
shift;;
-fb) shift
BFONT=$1
shift;;
-host) shift
HOST=$1
shift;;
-help) Usage;;
*) Usage;;
esac
done
xterm -title "VAX" -sb -sl 1200 -geo ${COLS}x24 -fg ${FG} -bg ${BG} \
-cr red -fn ${FONT} -fb ${BFONT} -xrm \
'XTerm*VT100.translations: #override \n\
<Key>Insert: string(\001) \n\
Shift <Key>Up: scroll-back(1,lines) \n\
Shift <Key>Down: scroll-forw(1,lines) \n\
Shift <Key>Right: string(0x1b) string("f") \n\
Shift <Key>Left: string(0x1b) string("b") \n\
Shift <Key>Delete: string(0x1b) string(0x08) \n\
Shift <Key>Tab: string(0x1b) string("*") \n\
<Key>0x1000FF0D: scroll-back(1,page) \n\
<Key>0x1000FF0E: scroll-forw(1,page) \n\
<Key>0x1000FF09: string(\010) \n\
<Key>0x1000FF0A: string(\005) \n\
<Key>BackSpace: string(0xff) \n\
<Key>Select: select-start() \n\
<Key>0x1000FF02: select-end(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF02: select-end(CLIPBOARD) \n\
<Key>0x1000FF04: insert-selection(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF04: insert-selection(CLIPBOARD) \n\
<Key>F1: string(0x1b) string("OP") \n\
<Key>F2: string(0x1b) string("OQ") \n\
<Key>F3: string(0x1b) string("OR") \n\
<Key>F4: string(0x1b) string("OS") \n\
<Key>F5: string(0x1b) string("OA") \n\
<Key>F11: string(0x1b) string("[23~") \n\
<Key>F12: string(0x1b) string("[24~") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_Divide: string(0x1b) string("OP") \n\
<Key>KP_Multiply: string(0x1b) string("[29~") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Subtract: string(0x1b) string("Om") \n\
<Key>KP_Add: string(0x1b) string("Ol") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Btn1Down>: select-start() \n\
<Btn1Motion>: select-extend() \n\
<Btn1Up>: select-end(PRIMARY,CUT_BUFFER0) \n\
Button1<Btn2Down>: select-end(CLIPBOARD) \n\
Button1<Btn2Up>: ignore()' \
-e telnet $HOST &
Finally (for the moment) is a further modification of Robert Ess's script
by Erik Ahlefeldt,
<oahlefel@metz.une.edu.au>.
From his readme file, for vmsterm:
This script is for people who wish to connect from a Linux or Unix computer to a VMS computer using telnet and get a good VT100 or VT220 emulation. The key mappings have been specifically designed to emulate the VT terminal auxiliary numeric keypad, so that you can use VMS EDT and TPU editors, as well as the many VMS applications use keys PF1 to PF4. The script should work with any recent version of Xterm using a standard extended IBM PC keyboard or a Sun keyboard.a summary of the keyboard mapping:About the keymappings. First the auxiliary numeric keypad. My prime objective with these mappings was to produce a setup that I could use with the EDT and TPU editors which make extensive use of the numeric keypad. The top row of keys PC numeric keypad (Num Lock, Divide, Multiply, Subtract) are where you find PF1, PF2, PF3, PF4 on a VT keyboard, so I have mapped them to PF1 thru PF4. The PC numeric keypad Add key (+) takes up the space of two keys which are Minus and Comma on the VT keyboard - I have mapped it to Comma (Delete Character in the EDT editor). I have then used the PC Pause key to map to VT key Minus (Delete Word in the EDT editor). The remaining keys on the auxiliary numeric keypad are the same for PC and VT.
The six keys between the main and numeric keypads on the PC (Insert, Home, Page Up, Delete End, Page Down) are usually mapped to the VT keys by either position or by (approximate) function. As I rarely use these keys I have mapped them by function as follows: PC key Insert to VT Insert Here, PC Home to VT Find, PC Page Up to VT Prev, PC Delete to VT Remove, PC End to VT Select, PC Page Down to VT Next.
- Function keys.
- There are 12 function keys on the PC keyboard and 20 on the VT keyboard, so I map PC F1 thru F12 to VT F1 thru F12 (except for F1 thru F5 as noted below) and PC Shift F1 thru Shift F10 to VT F11 thru F20.
The VT keys F1 thru F5 are local hardware function keys so there is nothing to emulate, however some PC to VT emulations in the past have mapped PF1 thru PF4 here, so I have done that too, even though they are already mapped on the auxiliary numeric keypad.
- Xterm functionality.
- You lose some xterm functions when you remap the keyboard, however this script implements a scroll back buffer of 1000 lines which you scroll through using Shift and Up (a.k.a. Up Arrow or Cursor Up key) or Shift and Down.
PC Key maps to VT Key. ------ ------ F1 PF1 F2 PF2 F3 PF3 F4 PF4 F5 unused F6 F6 F7 F7 F8 F8 F9 F9 F10 F10 F11 F11 F12 F12 Shift F1 F11 Shift F2 F12 Shift F3 F13 Shift F4 F14 Shift F5 F15 (Help) Shift F6 F16 (Do) Shift F7 F17 Shift F8 F18 Shift F9 F19 Shift F10 F20 Shift F11 F11 Shift F12 F12 Print Help (F15) Cancel Do (F16) Pause Keypad Minus Insert Insert Here Delete Remove Home Find End Select Prior Prev Next Next BackSpace Next Backn order of their size.How do I print the screen?
That depends on why you want to print it.If you want a trace of an interactive session, you should use the script program. It records every character sent to the screen, recording them in a file
typescript. There are two drawbacks to this approach:
typescript file.
If you want to print the contents of the screen, XFree86 xterm implements, as part of the VT100 emulation, an "attached" printer.
printAttributes to get
more easily printed output.
printerAutoClose resource to change
xterm's behavior to close the printer pipe whenever the terminal
is told to switch the printer offline.
With X Consortium xterm, you have partial support for DEC VTxxx function keys. Function keys F1 to F12 correspond to DEC's F1 to F12 (sort of). Actually, DEC's VT220 terminals do not have codes for F1 through F5. They are reserved for local functions. And the VT220 (and up) terminals have 20 function keys. So you cannot do anything with the F13 through F20 (i.e., DO, HELP and SELECT). Finally, though xterm is reputed to be VT100-compatible, it has no support for the VT100 keypad (PF1 to PF4, and the "," key).
XFree86 xterm changes the X Consortium codes for F1 to F4 to match the
VT100 PF1 to PF4, except when the emulation level is VT220 and up.
In this case, it generates the same F1 to F4 codes as X Consortium xterm.
Moreover, it adds a new resource sunKeyboard, which
tells the program whether it has only 12 function keys (i.e., a Sun or PC
keyboard).
If so (this is selectable from the popup menu), you can use the control key
with F1 to F12 to get F13 to F24, and use the "+" key on the keypad as an
alias for "," (comma).
The emulation level for XFree86 xterm is set via the resource
decTerminalID, e.g., to 220 for a VT220.
Once set, applications can set the emulation level up or down within that
limit. DEC's terminals are configured in much the same way by a setup
option.
That is the simple way, using a couple of new resources. The traditional way to get function keys involves translations. I have seen a few postings on the newsgroups that do this. Here is one from Bruce Momjian <root@candle.pha.pa.us> for a VT220:
xterm $XTERMFLAGS +rw +sb +ls $@ -tm 'erase ^? intr ^c' \
-name vt220 -title vt220 -tn xterm-220 "$@" &
with the corresponding resources:
XTerm*VT100.translations: #override \n\
<Key>Home: string(0x1b) string("[3~") \n \
<Key>End: string(0x1b) string("[4~") \n
vt220*VT100.translations: #override \n\
~Shift <Key>F1: string(0x1b) string("OP") \n \
~Shift <Key>F2: string(0x1b) string("OQ") \n \
~Shift <Key>F3: string(0x1b) string("OR") \n \
~Shift <Key>F4: string(0x1b) string("OS") \n \
~Shift <Key>F5: string(0x1b) string("[16~") \n \
~Shift <Key>F6: string(0x1b) string("[17~") \n \
~Shift <Key>F7: string(0x1b) string("[18~") \n \
~Shift <Key>F8: string(0x1b) string("[19~") \n \
~Shift <Key>F9: string(0x1b) string("[20~") \n \
~Shift <Key>F10: string(0x1b) string("[21~") \n \
~Shift <Key>F11: string(0x1b) string("[28~") \n \
~Shift <Key>F12: string(0x1b) string("[29~") \n \
Shift <Key>F1: string(0x1b) string("[23~") \n \
Shift <Key>F2: string(0x1b) string("[24~") \n \
Shift <Key>F3: string(0x1b) string("[25~") \n \
Shift <Key>F4: string(0x1b) string("[26~") \n \
Shift <Key>F5: string(0x1b) string("[K~") \n \
Shift <Key>F6: string(0x1b) string("[31~") \n \
Shift <Key>F7: string(0x1b) string("[31~") \n \
Shift <Key>F8: string(0x1b) string("[32~") \n \
Shift <Key>F9: string(0x1b) string("[33~") \n \
Shift <Key>F10: string(0x1b) string("[34~") \n \
Shift <Key>F11: string(0x1b) string("[28~") \n \
Shift <Key>F12: string(0x1b) string("[29~") \n \
<Key>Print: string(0x1b) string("[32~") \n\
<Key>Cancel: string(0x1b) string("[33~") \n\
<Key>Pause: string(0x1b) string("[34~") \n\
<Key>Insert: string(0x1b) string("[2~") \n\
<Key>Delete: string(0x1b) string("[3~") \n\
<Key>Home: string(0x1b) string("[1~") \n\
<Key>End: string(0x1b) string("[4~") \n\
<Key>Prior: string(0x1b) string("[5~") \n\
<Key>Next: string(0x1b) string("[6~") \n\
<Key>BackSpace: string(0x7f) \n\
<Key>Num_Lock: string(0x1b) string("OP") \n\
<Key>KP_Divide: string(0x1b) string("Ol") \n\
<Key>KP_Multiply: string(0x1b) string("Om") \n\
<Key>KP_Subtract: string(0x1b) string("OS") \n\
<Key>KP_Add: string(0x1b) string("OM") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_6: string(0x1b) string("Ov") \n\
<Key>KP_7: string(0x1b) string("Ow") \n\
<Key>KP_8: string(0x1b) string("Ox") \n\
<Key>KP_9: string(0x1b) string("Oy") \n
! <Key>Up: string(0x1b) string("[A") \n\
! <Key>Down: string(0x1b) string("[B") \n\
! <Key>Right: string(0x1b) string("[C") \n\
! <Key>Left: string(0x1b) string("[D") \n\
*visualBell: true
*saveLines: 1000
*cursesemul: true
*scrollKey: true
*scrollBar: true
Note that real VT220 terminals use shifted function keys to mean something
different: the user-programmable keys (i.e., DECUDK). XFree86 xterm
supports this, but the translations do not (they're using shift to select
F13 to F20).
Here's another one, from Robert Ess <ress@spd.dsccc.com>:
#!/bin/sh
# vax
# 09-17-96 Bob Ess - initial creation
# 09-26-96 Shig Katada - Additional keybindings
#
# Script file to incorporate keybindings and command line
# options for connecting to a VAX node
# Usage statement
Usage(){
echo
echo " Usage : vax -options"
echo
echo " Options: -80 for 80 column terminal"
echo " -132 for 132 column terminal"
echo " -fg colorname"
echo " -bg colorname"
echo " -fn fontname"
echo " -fb bold fontname"
echo " -host [altair] [devel] [leonis] [castor]"
echo ""
echo " Example: \"vax -80 -fg white -bg black -fn 9x15 -fb 9x15b -host castor\""
echo " Starts a VAX session with an 80 column terminal"
echo " with a black background, white foreground, a normal"
echo " font of 9x15 and a bold font of 9x15b, and connects"
echo " to the node 'castor'"
echo
echo " If you need additional help, please call Workstation"
echo " Services at x92396."
echo
exit 1
}
# Default to a black foreground with a white background.
# Use the 9x15 and 9x15bold fonts. Connect to castor by default.
#
FG=black
BG=white
HOST=castor
FONT=9x15
BFONT=9x15bold
COLS=80
# Parse the command line arguments
#
while [ $# != 0 ];
do
case $1 in
-80) COLS=80
FONT=spc12x24c
BFONT=spc12x24b
shift
;;
-132) COLS=132
FONT=9x15
BFONT=9x15b
shift
;;
-fg) shift
FG=$1
shift;;
-bg) shift
BG=$1
shift;;
-fn) shift
FONT=$1
shift;;
-fb) shift
BFONT=$1
shift;;
-host) shift
HOST=$1
shift;;
-help) Usage;;
*) Usage;;
esac
done
xterm -title "VAX" -sb -sl 1200 -geo ${COLS}x24 -fg ${FG} -bg ${BG} \
-cr red -fn ${FONT} -fb ${BFONT} -xrm \
'XTerm*VT100.translations: #override \n\
<Key>Insert: string(\001) \n\
Shift <Key>Up: scroll-back(1,lines) \n\
Shift <Key>Down: scroll-forw(1,lines) \n\
Shift <Key>Right: string(0x1b) string("f") \n\
Shift <Key>Left: string(0x1b) string("b") \n\
Shift <Key>Delete: string(0x1b) string(0x08) \n\
Shift <Key>Tab: string(0x1b) string("*") \n\
<Key>0x1000FF0D: scroll-back(1,page) \n\
<Key>0x1000FF0E: scroll-forw(1,page) \n\
<Key>0x1000FF09: string(\010) \n\
<Key>0x1000FF0A: string(\005) \n\
<Key>BackSpace: string(0xff) \n\
<Key>Select: select-start() \n\
<Key>0x1000FF02: select-end(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF02: select-end(CLIPBOARD) \n\
<Key>0x1000FF04: insert-selection(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF04: insert-selection(CLIPBOARD) \n\
<Key>F1: string(0x1b) string("OP") \n\
<Key>F2: string(0x1b) string("OQ") \n\
<Key>F3: string(0x1b) string("OR") \n\
<Key>F4: string(0x1b) string("OS") \n\
<Key>F5: string(0x1b) string("OA") \n\
<Key>F11: string(0x1b) string("[23~") \n\
<Key>F12: string(0x1b) string("[24~") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_Divide: string(0x1b) string("OP") \n\
<Key>KP_Multiply: string(0x1b) string("[29~") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Subtract: string(0x1b) string("Om") \n\
<Key>KP_Add: string(0x1b) string("Ol") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Btn1Down>: select-start() \n\
<Btn1Motion>: select-extend() \n\
<Btn1Up>: select-end(PRIMARY,CUT_BUFFER0) \n\
Button1<Btn2Down>: select-end(CLIPBOARD) \n\
Button1<Btn2Up>: ignore()' \
-e telnet $HOST &
Finally (for the moment) is a further modification of Robert Ess's script
by Erik Ahlefeldt,
<oahlefel@metz.une.edu.au>.
From his readme file, for vmsterm:
This script is for people who wish to connect from a Linux or Unix computer to a VMS computer using telnet and get a good VT100 or VT220 emulation. The key mappings have been specifically designed to emulate the VT terminal auxiliary numeric keypad, so that you can use VMS EDT and TPU editors, as well as the many VMS applications use keys PF1 to PF4. The script should work with any recent version of Xterm using a standard extended IBM PC keyboard or a Sun keyboard.a summary of the keyboard mapping:About the keymappings. First the auxiliary numeric keypad. My prime objective with these mappings was to produce a setup that I could use with the EDT and TPU editors which make extensive use of the numeric keypad. The top row of keys PC numeric keypad (Num Lock, Divide, Multiply, Subtract) are where you find PF1, PF2, PF3, PF4 on a VT keyboard, so I have mapped them to PF1 thru PF4. The PC numeric keypad Add key (+) takes up the space of two keys which are Minus and Comma on the VT keyboard - I have mapped it to Comma (Delete Character in the EDT editor). I have then used the PC Pause key to map to VT key Minus (Delete Word in the EDT editor). The remaining keys on the auxiliary numeric keypad are the same for PC and VT.
The six keys between the main and numeric keypads on the PC (Insert, Home, Page Up, Delete End, Page Down) are usually mapped to the VT keys by either position or by (approximate) function. As I rarely use these keys I have mapped them by function as follows: PC key Insert to VT Insert Here, PC Home to VT Find, PC Page Up to VT Prev, PC Delete to VT Remove, PC End to VT Select, PC Page Down to VT Next.
- Function keys.
- There are 12 function keys on the PC keyboard and 20 on the VT keyboard, so I map PC F1 thru F12 to VT F1 thru F12 (except for F1 thru F5 as noted below) and PC Shift F1 thru Shift F10 to VT F11 thru F20.
The VT keys F1 thru F5 are local hardware function keys so there is nothing to emulate, however some PC to VT emulations in the past have mapped PF1 thru PF4 here, so I have done that too, even though they are already mapped on the auxiliary numeric keypad.
- Xterm functionality.
- You lose some xterm functions when you remap the keyboard, however this script implements a scroll back buffer of 1000 lines which you scroll through using Shift and Up (a.k.a. Up Arrow or Cursor Up key) or Shift and Down.
PC Key maps to VT Key. ------ ------ F1 PF1 F2 PF2 F3 PF3 F4 PF4 F5 unused F6 F6 F7 F7 F8 F8 F9 F9 F10 F10 F11 F11 F12 F12 Shift F1 F11 Shift F2 F12 Shift F3 F13 Shift F4 F14 Shift F5 F15 (Help) Shift F6 F16 (Do) Shift F7 F17 Shift F8 F18 Shift F9 F19 Shift F10 F20 Shift F11 F11 Shift F12 F12 Print Help (F15) Cancel Do (F16) Pause Keypad Minus Insert Insert Here Delete Remove Home Find End Select Prior Prev Next Next BackSpace Next Backn order of their size.How do I print the screen?
That depends on why you want to print it.If you want a trace of an interactive session, you should use the script program. It records every character sent to the screen, recording them in a file
typescript. There are two drawbacks to this approach:
typescript file.
If you want to print the contents of the screen, XFree86 xterm implements, as part of the VT100 emulation, an "attached" printer.
printAttributes to get
more easily printed output.
printerAutoClose resource to change
xterm's behavior to close the printer pipe whenever the terminal
is told to switch the printer offline.
With X Consortium xterm, you have partial support for DEC VTxxx function keys. Function keys F1 to F12 correspond to DEC's F1 to F12 (sort of). Actually, DEC's VT220 terminals do not have codes for F1 through F5. They are reserved for local functions. And the VT220 (and up) terminals have 20 function keys. So you cannot do anything with the F13 through F20 (i.e., DO, HELP and SELECT). Finally, though xterm is reputed to be VT100-compatible, it has no support for the VT100 keypad (PF1 to PF4, and the "," key).
XFree86 xterm changes the X Consortium codes for F1 to F4 to match the
VT100 PF1 to PF4, except when the emulation level is VT220 and up.
In this case, it generates the same F1 to F4 codes as X Consortium xterm.
Moreover, it adds a new resource sunKeyboard, which
tells the program whether it has only 12 function keys (i.e., a Sun or PC
keyboard).
If so (this is selectable from the popup menu), you can use the control key
with F1 to F12 to get F13 to F24, and use the "+" key on the keypad as an
alias for "," (comma).
The emulation level for XFree86 xterm is set via the resource
decTerminalID, e.g., to 220 for a VT220.
Once set, applications can set the emulation level up or down within that
limit. DEC's terminals are configured in much the same way by a setup
option.
That is the simple way, using a couple of new resources. The traditional way to get function keys involves translations. I have seen a few postings on the newsgroups that do this. Here is one from Bruce Momjian <root@candle.pha.pa.us> for a VT220:
xterm $XTERMFLAGS +rw +sb +ls $@ -tm 'erase ^? intr ^c' \
-name vt220 -title vt220 -tn xterm-220 "$@" &
with the corresponding resources:
XTerm*VT100.translations: #override \n\
<Key>Home: string(0x1b) string("[3~") \n \
<Key>End: string(0x1b) string("[4~") \n
vt220*VT100.translations: #override \n\
~Shift <Key>F1: string(0x1b) string("OP") \n \
~Shift <Key>F2: string(0x1b) string("OQ") \n \
~Shift <Key>F3: string(0x1b) string("OR") \n \
~Shift <Key>F4: string(0x1b) string("OS") \n \
~Shift <Key>F5: string(0x1b) string("[16~") \n \
~Shift <Key>F6: string(0x1b) string("[17~") \n \
~Shift <Key>F7: string(0x1b) string("[18~") \n \
~Shift <Key>F8: string(0x1b) string("[19~") \n \
~Shift <Key>F9: string(0x1b) string("[20~") \n \
~Shift <Key>F10: string(0x1b) string("[21~") \n \
~Shift <Key>F11: string(0x1b) string("[28~") \n \
~Shift <Key>F12: string(0x1b) string("[29~") \n \
Shift <Key>F1: string(0x1b) string("[23~") \n \
Shift <Key>F2: string(0x1b) string("[24~") \n \
Shift <Key>F3: string(0x1b) string("[25~") \n \
Shift <Key>F4: string(0x1b) string("[26~") \n \
Shift <Key>F5: string(0x1b) string("[K~") \n \
Shift <Key>F6: string(0x1b) string("[31~") \n \
Shift <Key>F7: string(0x1b) string("[31~") \n \
Shift <Key>F8: string(0x1b) string("[32~") \n \
Shift <Key>F9: string(0x1b) string("[33~") \n \
Shift <Key>F10: string(0x1b) string("[34~") \n \
Shift <Key>F11: string(0x1b) string("[28~") \n \
Shift <Key>F12: string(0x1b) string("[29~") \n \
<Key>Print: string(0x1b) string("[32~") \n\
<Key>Cancel: string(0x1b) string("[33~") \n\
<Key>Pause: string(0x1b) string("[34~") \n\
<Key>Insert: string(0x1b) string("[2~") \n\
<Key>Delete: string(0x1b) string("[3~") \n\
<Key>Home: string(0x1b) string("[1~") \n\
<Key>End: string(0x1b) string("[4~") \n\
<Key>Prior: string(0x1b) string("[5~") \n\
<Key>Next: string(0x1b) string("[6~") \n\
<Key>BackSpace: string(0x7f) \n\
<Key>Num_Lock: string(0x1b) string("OP") \n\
<Key>KP_Divide: string(0x1b) string("Ol") \n\
<Key>KP_Multiply: string(0x1b) string("Om") \n\
<Key>KP_Subtract: string(0x1b) string("OS") \n\
<Key>KP_Add: string(0x1b) string("OM") \n\
<Key>KP_Enter: string(0x1b) string("OM") \n\
<Key>KP_Decimal: string(0x1b) string("On") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\
<Key>KP_3: string(0x1b) string("Os") \n\
<Key>KP_4: string(0x1b) string("Ot") \n\
<Key>KP_5: string(0x1b) string("Ou") \n\
<Key>KP_6: string(0x1b) string("Ov") \n\
<Key>KP_7: string(0x1b) string("Ow") \n\
<Key>KP_8: string(0x1b) string("Ox") \n\
<Key>KP_9: string(0x1b) string("Oy") \n
! <Key>Up: string(0x1b) string("[A") \n\
! <Key>Down: string(0x1b) string("[B") \n\
! <Key>Right: string(0x1b) string("[C") \n\
! <Key>Left: string(0x1b) string("[D") \n\
*visualBell: true
*saveLines: 1000
*cursesemul: true
*scrollKey: true
*scrollBar: true
Note that real VT220 terminals use shifted function keys to mean something
different: the user-programmable keys (i.e., DECUDK). XFree86 xterm
supports this, but the translations do not (they're using shift to select
F13 to F20).
Here's another one, from Robert Ess <ress@spd.dsccc.com>:
#!/bin/sh
# vax
# 09-17-96 Bob Ess - initial creation
# 09-26-96 Shig Katada - Additional keybindings
#
# Script file to incorporate keybindings and command line
# options for connecting to a VAX node
# Usage statement
Usage(){
echo
echo " Usage : vax -options"
echo
echo " Options: -80 for 80 column terminal"
echo " -132 for 132 column terminal"
echo " -fg colorname"
echo " -bg colorname"
echo " -fn fontname"
echo " -fb bold fontname"
echo " -host [altair] [devel] [leonis] [castor]"
echo ""
echo " Example: \"vax -80 -fg white -bg black -fn 9x15 -fb 9x15b -host castor\""
echo " Starts a VAX session with an 80 column terminal"
echo " with a black background, white foreground, a normal"
echo " font of 9x15 and a bold font of 9x15b, and connects"
echo " to the node 'castor'"
echo
echo " If you need additional help, please call Workstation"
echo " Services at x92396."
echo
exit 1
}
# Default to a black foreground with a white background.
# Use the 9x15 and 9x15bold fonts. Connect to castor by default.
#
FG=black
BG=white
HOST=castor
FONT=9x15
BFONT=9x15bold
COLS=80
# Parse the command line arguments
#
while [ $# != 0 ];
do
case $1 in
-80) COLS=80
FONT=spc12x24c
BFONT=spc12x24b
shift
;;
-132) COLS=132
FONT=9x15
BFONT=9x15b
shift
;;
-fg) shift
FG=$1
shift;;
-bg) shift
BG=$1
shift;;
-fn) shift
FONT=$1
shift;;
-fb) shift
BFONT=$1
shift;;
-host) shift
HOST=$1
shift;;
-help) Usage;;
*) Usage;;
esac
done
xterm -title "VAX" -sb -sl 1200 -geo ${COLS}x24 -fg ${FG} -bg ${BG} \
-cr red -fn ${FONT} -fb ${BFONT} -xrm \
'XTerm*VT100.translations: #override \n\
<Key>Insert: string(\001) \n\
Shift <Key>Up: scroll-back(1,lines) \n\
Shift <Key>Down: scroll-forw(1,lines) \n\
Shift <Key>Right: string(0x1b) string("f") \n\
Shift <Key>Left: string(0x1b) string("b") \n\
Shift <Key>Delete: string(0x1b) string(0x08) \n\
Shift <Key>Tab: string(0x1b) string("*") \n\
<Key>0x1000FF0D: scroll-back(1,page) \n\
<Key>0x1000FF0E: scroll-forw(1,page) \n\
<Key>0x1000FF09: string(\010) \n\
<Key>0x1000FF0A: string(\005) \n\
<Key>BackSpace: string(0xff) \n\
<Key>Select: select-start() \n\
<Key>0x1000FF02: select-end(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF02: select-end(CLIPBOARD) \n\
<Key>0x1000FF04: insert-selection(PRIMARY,CUT_BUFFER0) \n\
Meta <Key>0x1000FF04: insert-selection(CLIPBOARD) \n\
<Key>F1: string(0x1b) string("OP") \n\
<Key>F2: string(0x1b) string("OQ") \n\
<Key>F3: string(0x1b) string("OR") \n\
<Key>F4: string(0x1b) string("OS") \n\
<Key>F5: string(0x1b) string("OA") \n\
<Key>F11: string(0x1b) string("[23~") \n\
<Key>F12: string(0x1b) string("[24~") \n\
<Key>KP_0: string(0x1b) string("Op") \n\
<Key>KP_1: string(0x1b) string("Oq") \n\
<Key>KP_2: string(0x1b) string("Or") \n\