This option allows xterm to be used as an input and
output channel for an existing program and is sometimes used in specialized
applications. The option value specifies the last few letters of the name
of a pseudo-terminal to use in slave mode, plus the number of the inherited
file descriptor. If the option contains a ``/'' character, that delimits the
characters used for the pseudo-terminal name from the file descriptor. Otherwise,
exactly two characters are used from the option for the pseudo-terminal
name, the remainder is the file descriptor. Examples:
-S123/45
-Sab34
The following command line arguments are provided for compatibility with
older versions. They may not be supported in the next release as the X
Toolkit provides standard options that accomplish the same task.
- %geom
- This
option specifies the preferred size and position of the Tektronix window.
It is shorthand for specifying the ``*tekGeometry'' resource.
- #geom
- This option
specifies the preferred position of the icon window. It is shorthand for
specifying the ``*iconGeometry'' resource.
- -T string
- This option specifies the
title for xterm's windows. It is equivalent to -title.
- -n string
- This option
specifies the icon name for xterm's windows. It is shorthand for specifying
the ``*iconName'' resource. Note that this is not the same as the toolkit option
-name (see below). The default icon name is the application name.
- -r
- This option
indicates that reverse video should be simulated by swapping the foreground
and background colors. It is equivalent to -rv.
- -w number
- This option specifies
the width in pixels of the border surrounding the window. It is equivalent
to -borderwidth or -bw.
The following standard X Toolkit command line arguments
are commonly used with xterm:
- -bd color
- This option specifies the color
to use for the border of the window. The default is ``black.''
- -bg color
- This
option specifies the color to use for the background of the window. The
default is ``white.''
- -bw number
- This option specifies the width in pixels of
the border surrounding the window.
- -display display
- This option specifies
the X server to contact; see X(1)
.
- -fg color
- This option specifies the color
to use for displaying text. The default is ``black.''
- -fn font
- This option specifies
the font to be used for displaying normal text. The default is fixed.
- -geometry
geometry
- This option specifies the preferred size and position of the VT102
window; see X(1)
.
- -iconic
- This option indicates that xterm should ask the
window manager to start it as an icon rather than as the normal window.
- -name name
- This option specifies the application name under which resources
are to be obtained, rather than the default executable file name. Name should
not contain ``.'' or ``*'' characters.
- -rv
- This option indicates that reverse video
should be simulated by swapping the foreground and background colors.
- +rv
- Disable the simulation of reverse video by swapping foreground and background
colors.
- -title string
- This option specifies the window title string, which
may be displayed by window managers if the user so chooses. The default
title is the command line specified after the -e option, if any, otherwise
the application name.
- -xrm resourcestring
- This option specifies a resource
string to be used. This is especially useful for setting resources that
do not have separate command line options.
The program understands
all of the core X Toolkit resource names and classes as well as:
- backarrowKeyIsErase
(class BackarrowKeyIsErase)
- Tie the VTxxx backarrowKey and ptyInitialErase
resources together by setting the DECBKM state according to whether the
initial value of stty erase is a backspace (8)
or delete (127) character.
The default is ``false'', which disables this feature.
- hold (class Hold)
- If
true, xterm will not immediately destroy its window when the shell command
completes. It will wait until you use the window manager to destroy/kill
the window, or if you use the menu entries that send a signal, e.g., HUP
or KILL. You may scroll back, select text, etc., to perform most graphical
operations. Resizing the display will lose data, however, since this involves
interaction with the shell which is no longer running.
- hpFunctionKeys (class
HpFunctionKeys)
- Specifies whether or not HP Function Key escape codes should
be generated for function keys instead of standard escape sequences.
- iconGeometry
(class IconGeometry)
- Specifies the preferred size and position of the application
when iconified. It is not necessarily obeyed by all window managers.
- iconName
(class IconName)
- Specifies the icon name. The default is the application
name.
- messages (class Messages)
- Specifies whether write access to the terminal
is allowed initially. See mesg(1)
. The default is ``true''.
- ptyInitialErase (class
PtyInitialErase)
- If ``true'', xterm will use the pseudo-terminal's sense of the
stty erase value. If ``false'', xterm will set the stty erase value to match
its own configuration, using the kb string from the termcap entry as a
reference, if available. In either case, the result is applied to the TERMCAP
variable which xterm sets. The default is ``false''.
- sameName (class SameName)
- If the value of this resource is ``true'', xterm doesn't send title and icon
name change requests when the request would have no effect: the name isn't
changed. This has the advantage of preventing flicker and the disadvantage
of requiring an extra round trip to the server to find out the previous
value. In practice this should never be a problem. The default is ``true''.
- sunFunctionKeys (class SunFunctionKeys)
- Specifies whether or not Sun Function
Key escape codes should be generated for function keys instead of standard
escape sequences.
- sunKeyboard (class SunKeyboard)
- Specifies whether or not
Sun/PC keyboard layout should be assumed rather than DEC VT220. This causes
the keypad `+' to be mapped to `,'. and CTRL F1-F12 to F11-F20, depending on the
setting of the ctrlFKeys resource. so xterm emulates a DEC VT220 more accurately.
Otherwise (the default, with sunKeyboard set to ``false''), xterm uses PC-style
bindings for the function keys and keypad.
- termName (class TermName)
- Specifies
the terminal type name to be set in the TERM environment variable.
- title
(class Title)
- Specifies a string that may be used by the window manager
when displaying this application.
- ttyModes (class TtyModes)
- Specifies a
string containing terminal setting keywords and the characters to which
they may be bound. Allowable keywords include: intr, quit, erase, kill,
eof, eol, swtch, start, stop, brk, susp, dsusp, rprnt, flush, weras, lnext
and status. Control characters may be specified as ^char (e.g., ^c or ^u) and
^? may be used to indicate delete (127). Use ^- to denote undef. Use \034 to
represent ^\, since a literal backslash in an X resource escapes the next
character.
This is very useful for overriding the default terminal settings
without having to do an stty every time an xterm is started. Note, however,
that the stty program on a given host may use different keywords; xterm's
table is builtin.
- useInsertMode (class UseInsertMode)
- Force use of insert
mode by adding appropriate entries to the TERMCAP environment variable.
This is useful if the system termcap is broken. The default is ``false.''
- utmpInhibit
(class UtmpInhibit)
- Specifies whether or not xterm should try to record
the user's terminal in the system utmp log file.
- waitForMap (class WaitForMap)
- Specifies whether or not xterm should wait for the initial window map before
starting the subprocess. The default is ``false.''
- zIconBeep (class ZIconBeep)
- Same as -ziconbeep command line argument. If the value of this resource is
non-zero, xterms that produce output while iconified will cause an XBell
sound at the given volume and have "***" prepended to their icon titles.
Most window managers will detect this change immediately, showing you which
window has the output. (A similar feature was in x10 xterm.)
The following
resources are specified as part of the vt100 widget (class VT100):
- activeIcon
(class ActiveIcon)
- Specifies whether or not active icon windows are to
be used when the xterm window is iconified, if this feature is compiled
into xterm. The active icon is a miniature representation of the content
of the window and will update as the content changes. Not all window managers
necessarily support application icon windows. Some window managers will
allow you to enter keystrokes into the active icon window. The default
is ``false.''
- allowSendEvents (class AllowSendEvents)
- Specifies whether or not
synthetic key and button events (generated using the X protocol SendEvent
request) should be interpreted or discarded. The default is ``false'' meaning
they are discarded. Note that allowing such events creates a very large
security hole.
- answerbackString (class AnswerbackString)
- Specifies the string
that xterm sends in response to an ENQ (control/E) character from the host.
The default is a blank string, i.e., ``''. A hardware VT100 implements this feature
as a setup option.
- alwaysHighlight (class AlwaysHighlight)
- Specifies whether
or not xterm should always display a highlighted text cursor. By default,
a hollow text cursor is displayed whenever the pointer moves out of the
window or the window loses the input focus.
- alwaysUseMods (class AlwaysUseMods)
- Override the numLock resource, telling xterm to use the Alt and Meta modifiers
as to construct parameters for function key sequences even if those modifiers
appear in the translations resource.
- appcursorDefault (class AppcursorDefault)
- If ``true,'' the cursor keys are initially in application mode. The default
is ``false.''
- appkeypadDefault (class AppkeypadDefault)
- If ``true,'' the keypad
keys are initially in application mode. The default is ``false.''
- autoWrap (class
AutoWrap)
- Specifies whether or not auto-wraparound should be enabled. The
default is ``true.''
- awaitInput (class AwaitInput)
- Specifies whether or not
the xterm uses a 50 millisecond timeout to await input (i.e., to support
the Xaw3d arrow scrollbar). The default is ``false.''
- backarrowKey (class BackarrowKey)
- Specifies whether the backarrow key transmits a backspace (8)
or delete
(127) character. This corresponds to the DECBKM control sequence. The default
(backspace) is ``true.'' Pressing the control key toggles this behavior.
- background
(class Background)
- Specifies the color to use for the background of the
window. The default is ``white.''
- bellSuppressTime (class BellSuppressTime)
- Number of milliseconds after a bell command is sent during which additional
bells will be suppressed. Default is 200. If set non-zero, additional bells
will also be suppressed until the server reports that processing of the
first bell has been completed; this feature is most useful with the visible
bell.
- boldColors (class ColorMode)
- Specifies whether to combine bold attribute
with colors like the IBM PC, i.e., map colors 0 through 7 to colors 8 through
15. These normally are the brighter versions of the first 8 colors, hence
bold. The default is ``true.''
- boldFont (class BoldFont)
- Specifies the name of
the bold font to use instead of overstriking.
- boldMode (class BoldMode)
- This specifies whether or not text with the bold attribute should be overstruck
to simulate bold fonts if the resolved bold font is the same as the normal
font. It may be desirable to disable bold fonts when color is being used
for the bold attribute.
- c132 (class C132)
- Specifies whether or not the VT102
DECCOLM escape sequence should be honored. The default is ``false.''
- cutNewline
(class CutNewline)
- If ``false'', triple clicking to select a line does not
include the Newline at the end of the line. If ``true'', the Newline is selected.
The default is ``true.''
- cutToBeginningOfLine (class CutToBeginningOfLine)
- If
``false'', triple clicking to select a line selects only from the current word
forward. If ``true'', the entire line is selected. The default is ``true.''
- cacheDoublesize
(class CacheDoublesize)
- Specifies the maximum number of double-sized fonts
which are cached by xterm. The default (8)
may be too large for some X terminals
with limited memory. Set this to zero to disable doublesize fonts altogether.
- charClass (class CharClass)
- Specifies comma-separated lists of character
class bindings of the form [low-]high:value. These are used in determining
which sets of characters should be treated the same when doing cut and
paste. See the section on specifying character classes.
- curses (class Curses)
- Specifies whether or not the last column bug in more(1)
should be worked
around. See the -cu option for details. The default is ``false.''
- colorAttrMode
(class ColorMode)
- Specifies whether ``colorBD'', ``colorBL'', ``colorUL'', and ``colorRV''
should override ANSI colors. If not, these are displayed only when no ANSI
colors have been set for the corresponding position. The default is ``false.''
- colorMode (class ColorMode)
- Specifies whether or not recognition of ANSI
(ISO 6429) color change escape sequences should be enabled. The default
is ``true.''
- colorBDMode (class ColorMode)
- Specifies whether characters with
the bold attribute should be displayed in color or as bold characters.
Note that setting ``colorMode'' off disables all colors, including bold.
- colorBLMode
(class ColorMode)
- Specifies whether characters with the blink attribute
should be displayed in color. Note that setting ``colorMode'' off disables all
colors, including this.
- colorRVMode (class ColorMode)
- Specifies whether
characters with the reverse attribute should be displayed in color. Note
that setting ``colorMode'' off disables all colors, including this.
- colorULMode
(class ColorMode)
- Specifies whether characters with the underline attribute
should be displayed in color or as underlined characters. Note that setting
``colorMode'' off disables all colors, including underlining.
- color0 (class
Foreground)
- color1 (class Foreground)
- color2 (class Foreground)
- color3
(class Foreground)
- color4 (class Foreground)
- color5 (class Foreground)
- color6 (class Foreground)
- color7 (class Foreground)
- These specify the colors
for the ISO 6429 extension. The defaults are, respectively, black, red,
green, yellow, blue, magenta, cyan, and white.
- color8 (class Foreground)
- color9 (class Foreground)
- color10 (class Foreground)
- color11 (class Foreground)
- color12 (class Foreground)
- color13 (class Foreground)
- color14 (class Foreground)
- color15 (class Foreground)
- These specify the colors for the ISO 6429 extension
if the bold attribute is also enabled. The defaults are, respectively,
black, red, green, yellow, blue, magenta, cyan, and white.
- color16 (class
Foreground)
- through
- color255 class Foreground)
- These specify the colors
for the 256-color extension. The defaults for are for colors 16 through
231 to make a 6x6x6 color cube, and colors 232 through 255 to make a grayscale
ramp.
- colorBD (class Foreground)
- This specifies the color to use to display
bold characters if the ``colorBDMode'' resource is enabled.
- colorBL (class Foreground)
- This specifies the color to use to display blink characters if the ``colorBLMode''
resource is enabled.
- colorRV (class Foreground)
- This specifies the color
to use to display reverse characters if the ``colorRVMode'' resource is enabled.
- colorUL (class Foreground)
- This specifies the color to use to display underlined
characters if the ``colorULMode'' resource is enabled.
- ctrlFKeys (class CtrlFKeys)
- In VT220 keyboard mode (see sunKeyboard resource), specifies the amount
by which to shift F1-F12 given a control modifier (CTRL). This allows you
to generate key symbols for F10-F20 on a Sun/PC keyboard. The default is
``10'', which means that CTRL F1 generates the key symbol for F11.
- cursorBlink
(class CursorBlink)
- Specifies whether to make the cursor blink. The default
is ``false.''
- cursorColor (class Foreground)
- Specifies the color to use for
the text cursor. The default is ``black.''
- cursorOffTime (class CursorOffTime)
- Specifies the duration of the "off" part of the cursor blink cycle-time
in milliseconds. The default is 300.
- cursorOnTime (class CursorOnTime)
- Specifies
the duration of the "on" part of the cursor blink cycle-time, in milliseconds.
The default is 600.
- highlightColor (class Foreground)
- Specifies the color
to use for the background of selected or otherwise highlighted text. If
not specified, reverse video is used.
- decTerminalID (class DecTerminalID)
- Specifies the emulation level (100=VT100, 220=VT220, etc.), used to determine
the type of response to a DA control sequence. The default is 100.
- deleteIsDEL
(class DeleteIsDEL)
- Specifies whether the Delete key on the editing keypad
should send DEL (127) or the VT220-style Remove escape sequence. The default
is ``false,'' for the latter.
- dynamicColors (class DynamicColors)
- Specifies
whether or not escape sequences to change colors assigned to different
attributes are recognized.
- eightBitControl (class EightBitControl)
- Specifies
whether or not control sequences sent by the terminal should be eight-bit
characters or escape sequences. The default is ``false.''
- eightBitInput (class
EightBitInput)
- If ``true'', Meta characters input from the keyboard are presented
as a single character with the eighth bit turned on. The terminal is put
into 8-bit mode. If ``false'', Meta characters are converted into a two-character
sequence with the character itself preceded by ESC. The terminal is put
into 7-bit mode. The metaSendsEscape resource may override this. The default
is ``true.''
- eightBitOutput (class EightBitOutput)
- Specifies whether or not
eight-bit characters sent from the host should be accepted as is or stripped
when printed. The default is ``true,'' which means that they are accepted as
is.
- font (class Font)
- Specifies the name of the normal font. The default
is ``fixed.''
- font1 (class Font1)
- Specifies the name of the first alternative
font.
- font2 (class Font2)
- Specifies the name of the second alternative font.
- font3 (class Font3)
- Specifies the name of the third alternative font.
- font4
(class Font4)
- Specifies the name of the fourth alternative font.
- font5 (class
Font5)
- Specifies the name of the fifth alternative font.
- font6 (class Font6)
- Specifies the name of the sixth alternative font.
- fontDoublesize (class
FontDoublesize)
- Specifies whether xterm should attempt to use font scaling
to draw doublesize characters. Some older font servers cannot do this properly,
will return misleading font metrics. The default is ``true''. If disabled, xterm
will simulate doublesize characters by drawing normal characters with spaces
between them.
- foreground (class Foreground)
- Specifies the color to use for
displaying text in the window. Setting the class name instead of the instance
name is an easy way to have everything that would normally appear in the
text color change color. The default is ``black.''
- geometry (class Geometry)
- Specifies the preferred size and position of the VT102 window.
- highlightSelection
(class HighlightSelection)
- If ``false'', selecting with the mouse highlights
all positions on the screen between the beginning of the selection and
the current position. If ``true'', xterm highlights only the positions that
contain text that can be selected. The default is ``false.''
Depending on the
way your applications write to the screen, there may be trailing blanks
on a line. Xterm stores data as it is shown on the screen. Erasing the display
changes the internal state of each cell so it is not considered a blank
for the purpose of selection. Blanks written since the last erase are selectable.
If you do not wish to have trailing blanks in a selection, use the trimSelection
resource.
- hpLowerleftBugCompat (class HpLowerleftBugCompat)
- Specifies whether
to work around a bug in HP's xdb, which ignores termcap and always sends
ESC F to move to the lower left corner. ``true'' causes xterm to interpret ESC
F as a request to move to the lower left corner of the screen. The default
is ``false.''
- iconBorderColor (class BorderColor)
- Specifies the border color
for the active icon window if this feature is compiled into xterm. Not
all window managers will make the icon border visible.
- iconBorderWidth (class
BorderWidth)
- Specifies the border width for the active icon window if this
feature is compiled into xterm. The default is 0 (no border). Not all window
managers will make the border visible.
- iconFont (class IconFont)
- Specifies
the font for the miniature active icon window, if this feature is compiled
into xterm. The default is "nil2".
- internalBorder (class BorderWidth)
- Specifies
the number of pixels between the characters and the window border. The default
is 2.
- jumpScroll (class JumpScroll)
- Specifies whether or not jump scroll
should be used. The default is ``true.''
- keyboardDialect (class KeyboardDialect)
- Specifies the initial keyboard dialect, as well as the default value when
the terminal is reset. The value given is the same as the final character
in the control sequences which change character sets. The default is ``B'',
which corresponds to US ASCII.
- limitResize (class LimitResize)
- Limits resizing
of the screen via control sequence to a given multiple of the display dimensions.
The default is ``1''.
- loginShell (class LoginShell)
- Specifies whether or not
the shell to be run in the window should be started as a login shell. The
default is ``false.''
- marginBell (class MarginBell)
- Specifies whether or not
the bell should be run when the user types near the right margin. The default
is ``false.''
- metaSendsEscape (class MetaSendsEscape)
- If ``true'', Meta characters
are converted into a two-character sequence with the character itself preceded
by ESC. This applies as well to function key control sequences, unless xterm
sees that Meta is used in your key translations. If ``false'', Meta characters
input from the keyboard are handled according to the eightBitInput resource.
The default is ``false.''
- multiClickTime (class MultiClickTime)
- Specifies the
maximum time in milliseconds between multi-click select events. The default
is 250 milliseconds.
- multiScroll (class MultiScroll)
- Specifies whether or
not scrolling should be done asynchronously. The default is ``false.''
- nMarginBell
(class Column)
- Specifies the number of characters from the right margin
at which the margin bell should be rung, when enabled.
- numLock (class NumLock)
- If ``true'', xterm checks if NumLock is used as a modifier (see xmodmap(1)
).
If so, this modifier is used to simplify the logic when implementing special
NumLock for the sunKeyboard resource. Also (when sunKeyboard is false),
similar logic is used to find the modifier associated with the left and
right Alt keys. The default is ``true.''
- oldXtermFKeys (class OldXtermFKeys)
- If ``true'', xterm will use old-style control sequences for function keys F1
to F4, for compatibility with X Consortium xterm. Otherwise, it uses the
VT100-style codes for PF1 to PF4. The default is ``false.''
- pointerColor (class
Foreground)
- Specifies the foreground color of the pointer. The default
is ``XtDefaultForeground.''
- pointerColorBackground (class Background)
- Specifies
the background color of the pointer. The default is ``XtDefaultBackground.''
- pointerShape (class Cursor)
- Specifies the name of the shape of the pointer.
The default is ``xterm.''
- printAttributes (class PrintAttributes)
- Specifies
whether to print graphic attributes along with the text. A real DEC VTxxx
terminal will print the underline, highlighting codes but your printer
may not handle these. A ``0'' disables the attributes. A ``1'' prints the normal
set of attributes (bold, underline, inverse and blink) as VT100-style control
sequences. A ``2'' prints ANSI color attributes as well. The default is ``1.''
- printerAutoClose
(class PrinterAutoClose)
- If ``true'', xterm will close the printer (a pipe)
when the application switches the printer offline with a Media Copy command.
The default is ``false.''
- printerCommand (class PrinterCommand)
- Specifies a
shell command to which xterm will open a pipe when the first MC (Media
Copy) command is initiated. The default is ``lpr.''
- printerControlMode (class
PrinterControlMode)
- Specifies the printer control mode. A ``1'' selects autoprint
mode, which causes xterm to print a line from the screen when you move
the cursor off that line with a line feed, form feed or vertical tab character,
or an autowrap occurs. Autoprint mode is overridden by printer controller
mode (a ``2''), which causes all of the output to be directed to the printer.
The default is ``0.''
- printerExtent (class PrinterExtent)
- Controls whether a
print page function will print the entire page (true), or only the the
portion within the scrolling margins (false). The default is ``false.''
- printerFormFeed
(class PrinterFormFeed)
- Controls whether a form feed is sent to the printer
at the end of a print page function. The default is ``false.''
- resizeGravity
(class ResizeGravity)
- Affects the behavior when the window is resized to
be taller or shorter. NorthWest specifies that the top line of text on
the screen stay fixed. If the window is made shorter, lines are dropped
from the bottom; if the window is made taller, blank lines are added at
the bottom. This is compatible with the behavior in R4. SouthWest (the
default) specifies that the bottom line of text on the screen stay fixed.
If the window is made taller, additional saved lines will be scrolled
down onto the screen; if the window is made shorter, lines will be scrolled
off the top of the screen, and the top saved lines will be dropped.
- reverseVideo
(class ReverseVideo)
- Specifies whether or not reverse video should be simulated.
The default is ``false.''
- reverseWrap (class ReverseWrap)
- Specifies whether
or not reverse-wraparound should be enabled. The default is ``false.''
- rightScrollBar
(class RightScrollBar)
- Specifies whether or not the scrollbar should be
displayed on the right rather than the left. The default is ``false.''
- saveLines
(class SaveLines)
- Specifies the number of lines to save beyond the top
of the screen when a scrollbar is turned on. The default is 64.
- scrollBar
(class ScrollBar)
- Specifies whether or not the scrollbar should be displayed.
The default is ``false.''
- scrollKey (class ScrollCond)
- Specifies whether or
not pressing a key should automatically cause the scrollbar to go to the
bottom of the scrolling region. The default is ``false.''
- scrollLines (class
ScrollLines)
- Specifies the number of lines that the scroll-back and scroll-forw
actions should use as a default. The default value is 1.
- scrollTtyOutput
(class ScrollCond)
- Specifies whether or not output to the terminal should
automatically cause the scrollbar to go to the bottom of the scrolling
region. The default is ``true.''
- signalInhibit (class SignalInhibit)
- Specifies
whether or not the entries in the ``Main Options'' menu for sending signals
to xterm should be disallowed. The default is ``false.''
- tekGeometry (class
Geometry)
- Specifies the preferred size and position of the Tektronix window.
- tekInhibit (class TekInhibit)
- Specifies whether or not the escape sequence
to enter Tektronix mode should be ignored. The default is ``false.''
- tekSmall
(class TekSmall)
- Specifies whether or not the Tektronix mode window should
start in its smallest size if no explicit geometry is given. This is useful
when running xterm on displays with small screens. The default is ``false.''
- tekStartup (class TekStartup)
- Specifies whether or not xterm should start
up in Tektronix mode. The default is ``false.''
- titeInhibit (class TiteInhibit)
- Specifies whether or not xterm should remove remove ti and te termcap entries
(used to switch between alternate screens on startup of many screen-oriented
programs) from the TERMCAP string. If set, xterm also ignores the escape
sequence to switch to the alternate screen. Xterm supports terminfo in a
different way, supporting composite control sequences (also known as private
modes) 1047, 1048 and 1049 which have the same effect as the original 47
control sequence.
- translations (class Translations)
- Specifies the key and
button bindings for menus, selections, ``programmed strings,'' etc. See ACTIONS
below.
- trimSelection (class TrimSelection)
- If you set highlightSelection,
you can see the text which is selected, including any trailing spaces. Clearing
the screen (or a line) resets it to a state containing no spaces. Some lines
may contain trailing spaces when an application writes them to the screen.
However, you may not wish to paste lines with trailing spaces. If this resource
is true, xterm will trim trailing spaces from text which is selected. It
does not affect spaces which result in a wrapped line, nor will it trim
the trailing newline from your selection. The default is ``false.''
- underLine
(class UnderLine)
- This specifies whether or not text with the underline
attribute should be underlined. It may be desirable to disable underlining
when color is being used for the underline attribute.
- utf8 (class Utf8)
- This specifies whether xterm will run in UTF-8 mode. If you set this resource,
xterm also sets the wideChars resource as a side-effect. When set via a resource,
xterm cannot be switched via control sequences out of UTF-8 mode. The default
is ``0'' (off). Any other value will turn on UTF-8 mode.
- visualBell (class VisualBell)
- Specifies whether or not a visible bell (i.e. flashing) should be used instead
of an audible bell when Control-G is received. The default is ``false.''
- wideChars
(class WideChars)
- Specifies if xterm should respond to control sequences
that process 16-bit characters.
The following resources are specified as
part of the tek4014 widget (class Tek4014):
- font2 (class Font)
- Specifies
font number 2 to use in the Tektronix window.
- font3 (class Font)
- Specifies
font number 3 to use in the Tektronix window.
- fontLarge (class Font)
- Specifies
the large font to use in the Tektronix window.
- fontSmall (class Font)
- Specifies
the small font to use in the Tektronix window.
- ginTerminator (class GinTerminator)
- Specifies what character(s) should follow a GIN report or status report.
The possibilities are ``none,'' which sends no terminating characters, ``CRonly,''
which sends CR, and ``CR&EOT,'' which sends both CR and EOT. The default is ``none.''
- height (class Height)
- Specifies the height of the Tektronix window in pixels.
- initialFont (class InitialFont)
- Specifies which of the four Tektronix fonts
to use initially. Values are the same as for the set-tek-text action. The default
is ``large.''
- width (class Width)
- Specifies the width of the Tektronix window
in pixels.
The resources that may be specified for the various menus are
described in the documentation for the Athena SimpleMenu widget. The name
and classes of the entries in each of the menus are listed below.
The mainMenu
has the following entries:
- securekbd (class SmeBSB)
- This entry invokes
the secure() action.
- allowsends (class SmeBSB)
- This entry invokes the allow-send-events(toggle)
action.
- logging (class SmeBSB)
- This entry invokes the logging(toggle) action.
- print (class SmeBSB)
- This entry invokes the print() action.
- redraw (class
SmeBSB)
- This entry invokes the redraw() action.
- line1 (class SmeLine)
- This
is a separator.
- 8-bit-control (class SmeBSB)
- This entry invokes the set-8-bit-control(toggle)
action.
- backarrow key (class SmeBSB)
- This entry invokes the set-backarrow(toggle)
action.
- num-lock (class SmeBSB)
- This entry invokes the set-num-lock(toggle)
action.
- meta-esc (class SmeBSB)
- This entry invokes the meta-sends-escape(toggle)
action.
- delete-is-del (class SmeBSB)
- This entry invokes the delete-is-del(toggle)
action.
- oldFunctionKeys (class SmeBSB)
- This entry invokes the old-function-keys(toggle)
action.
- hpFunctionKeys (class SmeBSB)
- This entry invokes the hp-function-keys(toggle)
action.
- scoFunctionKeys (class SmeBSB)
- This entry invokes the sco-function-keys(toggle)
action.
- sunFunctionKeys (class SmeBSB)
- This entry invokes the sun-function-keys(toggle)
action.
- sunKeyboard (class SmeBSB)
- This entry invokes the sunKeyboard(toggle)
action.
- line2 (class SmeLine)
- This is a separator.
- suspend (class SmeBSB)
- This entry invokes the send-signal(tstp) action on systems that support
job control.
- continue (class SmeBSB)
- This entry invokes the send-signal(cont)
action on systems that support job control.
- interrupt (class SmeBSB)
- This
entry invokes the send-signal(int) action.
- hangup (class SmeBSB)
- This entry
invokes the send-signal(hup) action.
- terminate (class SmeBSB)
- This entry
invokes the send-signal(term) action.
- kill (class SmeBSB)
- This entry invokes
the send-signal(kill) action.
- line3 (class SmeLine)
- This is a separator.
- quit
(class SmeBSB)
- This entry invokes the quit() action.
The vtMenu has the
following entries:
- scrollbar (class SmeBSB)
- This entry invokes the set-scrollbar(toggle)
action.
- jumpscroll (class SmeBSB)
- This entry invokes the set-jumpscroll(toggle)
action.
- reversevideo (class SmeBSB)
- This entry invokes the set-reverse-video(toggle)
action.
- autowrap (class SmeBSB)
- This entry invokes the set-autowrap(toggle)
action.
- reversewrap (class SmeBSB)
- This entry invokes the set-reversewrap(toggle)
action.
- autolinefeed (class SmeBSB)
- This entry invokes the set-autolinefeed(toggle)
action.
- appcursor (class SmeBSB)
- This entry invokes the set-appcursor(toggle)
action.
- appkeypad (class SmeBSB)
- This entry invokes the set-appkeypad(toggle)
action.
- scrollkey (class SmeBSB)
- This entry invokes the set-scroll-on-key(toggle)
action.
- scrollttyoutput (class SmeBSB)
- This entry invokes the set-scroll-on-tty-output(toggle)
action.
- allow132 (class SmeBSB)
- This entry invokes the set-allow132(toggle)
action.
- cursesemul (class SmeBSB)
- This entry invokes the set-cursesemul(toggle)
action.
- visualbell (class SmeBSB)
- This entry invokes the set-visualbell(toggle)
action.
- marginbell (class SmeBSB)
- This entry invokes the set-marginbell(toggle)
action.
- cursorblink (class SmeBSB)
- This entry invokes the set-cursorblink(toggle)
action.
- titeInhibit (class SmeBSB)
- This entry invokes the set-titeInhibit(toggle)
action.
- activeicon (class SMeBSB)
- This entry toggles active icons on and
off if this feature was compiled into xterm. It is enabled only if xterm
was started with the command line option +ai or the activeIcon resource
is set to ``True.''
- line1 (class SmeLine)
- This is a separator.
- softreset (class
SmeBSB)
- This entry invokes the soft-reset() action.
- hardreset (class SmeBSB)
- This entry invokes the hard-reset() action.
- clearsavedlines (class SmeBSB)
- This entry invokes the clear-saved-lines() action.
- line2 (class SmeLine)
- This
is a separator.
- tekshow (class SmeBSB)
- This entry invokes the set-visibility(tek,toggle)
action.
- tekmode (class SmeBSB)
- This entry invokes the set-terminal-type(tek)
action.
- vthide (class SmeBSB)
- This entry invokes the set-visibility(vt,off)
action.
- altscreen (class SmeBSB)
- This entry invokes the set-altscreen(toggle)
action.
The fontMenu has the following entries:
- fontdefault (class SmeBSB)
- This entry invokes the set-vt-font(d) action.
- font1 (class SmeBSB)
- This entry
invokes the set-vt-font(1)
action.
- font2 (class SmeBSB)
- This entry invokes
the set-vt-font(2)
action.
- font3 (class SmeBSB)
- This entry invokes the set-vt-font(3)
action.
- font4 (class SmeBSB)
- This entry invokes the set-vt-font(4)
action.
- font5 (class SmeBSB)
- This entry invokes the set-vt-font(5)
action.
- font6 (class
SmeBSB)
- This entry invokes the set-vt-font(6)
action.
- fontescape (class SmeBSB)
- This entry invokes the set-vt-font(e) action.
- fontsel (class SmeBSB)
- This
entry invokes the set-vt-font(s) action.
- line1 (class SmeLine)
- This is a separator.
- font-linedrawing (class SmeBSB)
- This entry invokes the set-font-linedrawing(s)
action.
- font-doublesize (class SmeBSB)
- This entry invokes the set-font-doublesize(s)
action.
The tekMenu has the following entries:
- tektextlarge (class SmeBSB)
- This entry invokes the set-tek-text(l)
action.
- tektext2 (class SmeBSB)
- This
entry invokes the set-tek-text(2)
action.
- tektext3 (class SmeBSB)
- This entry
invokes the set-tek-text(3)
action.
- tektextsmall (class SmeBSB)
- This entry
invokes the set-tek-text(s) action.
- line1 (class SmeLine)
- This is a separator.
- tekpage (class SmeBSB)
- This entry invokes the tek-page() action.
- tekreset
(class SmeBSB)
- This entry invokes the tek-reset() action.
- tekcopy (class
SmeBSB)
- This entry invokes the tek-copy() action.
- line2 (class SmeLine)
- This
is a separator.
- vtshow (class SmeBSB)
- This entry invokes the set-visibility(vt,toggle)
action.
- vtmode (class SmeBSB)
- This entry invokes the set-terminal-type(vt)
action.
- tekhide (class SmeBSB)
- This entry invokes the set-visibility(tek,toggle)
action.
The following resources are useful when specified for the Athena
Scrollbar widget:
- thickness (class Thickness)
- Specifies the width in pixels
of the scrollbar.
- background (class Background)
- Specifies the color to use
for the background of the scrollbar.
- foreground (class Foreground)
- Specifies
the color to use for the foreground of the scrollbar. The ``thumb'' of the
scrollbar is a simple checkerboard pattern alternating pixels for foreground
and background color.
Once the VT102 window is created, xterm
allows you to select text and copy it within the same or other windows.
The selection functions are invoked when the pointer buttons are used with
no modifiers, and when they are used with the ``shift'' key. The assignment
of the functions described below to keys and buttons may be changed through
the resource database; see ACTIONS below.
Pointer button one (usually left)
is used to save text into the cut buffer. Move the cursor to beginning of
the text, and then hold the button down while moving the cursor to the
end of the region and releasing the button. The selected text is highlighted
and is saved in the global cut buffer and made the PRIMARY selection when
the button is released. Double-clicking selects by words. Triple-clicking
selects by lines. Quadruple-clicking goes back to characters, etc. Multiple-click
is determined by the time from button up to button down, so you can change
the selection unit in the middle of a selection. Logical words and lines
selected by double- or triple-clicking may wrap across more than one screen
line if lines were wrapped by xterm itself rather than by the application
running in the window. If the key/button bindings specify that an X selection
is to be made, xterm will leave the selected text highlighted for as long
as it is the selection owner.
Pointer button two (usually middle) `types'
(pastes) the text from the PRIMARY selection, if any, otherwise from the
cut buffer, inserting it as keyboard input.
Pointer button three (usually
right) extends the current selection. (Without loss of generality, you can
swap ``right'' and ``left'' everywhere in the rest of this paragraph.) If pressed
while closer to the right edge of the selection than the left, it extends/contracts
the right edge of the selection. If you contract the selection past the
left edge of the selection, xterm assumes you really meant the left edge,
restores the original selection, then extends/contracts the left edge of
the selection. Extension starts in the selection unit mode that the last
selection or extension was performed in; you can multiple-click to cycle
through them.
By cutting and pasting pieces of text without trailing new
lines, you can take text from several places in different windows and form
a command to the shell, for example, or take output from a program and
insert it into your favorite editor. Since the cut buffer is globally shared
among different applications, you should regard it as a `file' whose contents
you know. The terminal emulator and other text programs should be treating
it as if it were a text file, i.e., the text is delimited by new lines.
The
scroll region displays the position and amount of text currently showing
in the window (highlighted) relative to the amount of text actually saved.
As more text is saved (up to the maximum), the size of the highlighted
area decreases.
Clicking button one with the pointer in the scroll region
moves the adjacent line to the top of the display window.
Clicking button
three moves the top line of the display window down to the pointer position.
Clicking button two moves the display to a position in the saved text that
corresponds to the pointer's position in the scrollbar.
Unlike the VT102
window, the Tektronix window does not allow the copying of text. It does
allow Tektronix GIN mode, and in this mode the cursor will change from
an arrow to a cross. Pressing any key will send that key and the current
coordinate of the cross cursor. Pressing button one, two, or three will
return the letters `l', `m', and `r', respectively. If the `shift' key is pressed
when a pointer button is pressed, the corresponding upper case letter is
sent. To distinguish a pointer button from a key, the high bit of the character
is set (but this is bit is normally stripped unless the terminal mode is
RAW; see tty(4)
for details).
Xterm has four menus, named mainMenu,
vtMenu, fontMenu, and tekMenu. Each menu pops up under the correct combinations
of key and button presses. Most menus are divided into two section, separated
by a horizontal line. The top portion contains various modes that can be
altered. A check mark appears next to a mode that is currently active. Selecting
one of these modes toggles its state. The bottom portion of the menu are
command entries; selecting one of these performs the indicated function.
The xterm menu pops up when the ``control'' key and pointer button one are
pressed in a window. The mainMenu contains items that apply to both the
VT102 and Tektronix windows. The Secure Keyboard mode is be used when typing
in passwords or other sensitive data in an unsecure environment; see SECURITY
below. Notable entries in the command section of the menu are the Continue,
Suspend, Interrupt, Hangup, Terminate and Kill which sends the SIGCONT,
SIGTSTP, SIGINT, SIGHUP, SIGTERM and SIGKILL signals, respectively, to
the process group of the process running under xterm (usually the shell).
The Continue function is especially useful if the user has accidentally
typed CTRL-Z, suspending the process.
The vtMenu sets various modes in the
VT102 emulation, and is popped up when the ``control'' key and pointer button
two are pressed in the VT102 window. In the command section of this menu,
the soft reset entry will reset scroll regions. This can be convenient when
some program has left the scroll regions set incorrectly (often a problem
when using VMS or TOPS-20). The full reset entry will clear the screen, reset
tabs to every eight columns, and reset the terminal modes (such as wrap
and smooth scroll) to their initial states just after xterm has finished
processing the command line options.
The fontMenu sets the font used in
the VT102 window. In addition to the default font and a number of alternatives
that are set with resources, the menu offers the font last specified by
the Set Font escape sequence (see the document Xterm Control Sequences)
and the current selection as a font name (if the PRIMARY selection is owned).
The tekMenu sets various modes in the Tektronix emulation, and is popped
up when the ``control'' key and pointer button two are pressed in the Tektronix
window. The current font size is checked in the modes section of the menu.
The PAGE entry in the command section clears the Tektronix window.
X
environments differ in their security consciousness. Most servers, run
under xdm, are capable of using a ``magic cookie'' authorization scheme that
can provide a reasonable level of security for many people. If your server
is only using a host-based mechanism to control access to the server (see
xhost(1)
), then if you enable access for a host and other users are also
permitted to run clients on that same host, there is every possibility
that someone can run an application that will use the basic services of
the X protocol to snoop on your activities, potentially capturing a transcript
of everything you type at the keyboard. This is of particular concern when
you want to type in a password or other sensitive data. The best solution
to this problem is to use a better authorization mechanism that host-based
control, but a simple mechanism exists for protecting keyboard input in
xterm.
The xterm menu (see MENUS above) contains a Secure Keyboard entry
which, when enabled, ensures that all keyboard input is directed only to
xterm (using the GrabKeyboard protocol request). When an application prompts
you for a password (or other sensitive data), you can enable Secure Keyboard
using the menu, type in the data, and then disable Secure Keyboard using
the menu again. Only one X client at a time can secure the keyboard, so
when you attempt to enable Secure Keyboard it may fail. In this case, the
bell will sound. If the Secure Keyboard succeeds, the foreground and background
colors will be exchanged (as if you selected the Reverse Video entry in
the Modes menu); they will be exchanged again when you exit secure mode.
If the colors do not switch, then you should be very suspicious that you
are being spoofed. If the application you are running displays a prompt
before asking for the password, it is safest to enter secure mode before
the prompt gets displayed, and to make sure that the prompt gets displayed
correctly (in the new colors), to minimize the probability of spoofing.
You can also bring up the menu again and make sure that a check mark appears
next to the entry.
Secure Keyboard mode will be disabled automatically if
your xterm window becomes iconified (or otherwise unmapped), or if you
start up a reparenting window manager (that places a title bar or other
decoration around the window) while in Secure Keyboard mode. (This is a
feature of the X protocol not easily overcome.) When this happens, the
foreground and background colors will be switched back and the bell will
sound in warning.
Clicking the middle mouse button twice
in rapid succession will cause all characters of the same class (e.g. letters,
white space, punctuation) to be selected. Since different people have different
preferences for what should be selected (for example, should filenames
be selected as a whole or only the separate subnames), the default mapping
can be overridden through the use of the charClass (class CharClass) resource.
This resource is a series of comma-separated of range:value pairs. The range
is either a single number or low-high in the range of 0 to 65535, corresponding
to the code for the character or characters to be set. The value is arbitrary,
although the default table uses the character number of the first character
occurring in the set. When not in UTF-8 mode, only the first 256 bytes of
this table will be used.
The default table starts as follows -
static int charClass[256] = {
/* NUL SOH STX ETX EOT ENQ ACK BEL */
32, 1, 1, 1, 1, 1, 1, 1,
/* BS HT NL VT NP CR SO SI */
1, 32, 1, 1, 1, 1, 1, 1,
/* DLE DC1 DC2 DC3 DC4 NAK SYN ETB */
1, 1, 1, 1, 1, 1, 1, 1,
/* CAN EM SUB ESC FS GS RS US */
1, 1, 1, 1, 1, 1, 1, 1,
/* SP ! " # $ % & ' */
32, 33, 34, 35, 36, 37, 38, 39,
/* ( ) * + , - . / */
40, 41, 42, 43, 44, 45, 46, 47,
/* 0 1 2 3 4 5 6 7 */
48, 48, 48, 48, 48, 48, 48, 48,
/* 8 9 : ; < = > ? */
48, 48, 58, 59, 60, 61, 62, 63,
/* @ A B C D E F G */
64, 48, 48, 48, 48, 48, 48, 48,
/* H I J K L M N O */
48, 48, 48, 48, 48, 48, 48, 48,
/* P Q R S T U V W */
48, 48, 48, 48, 48, 48, 48, 48,
/* X Y Z [ \ ] ^ _ */
48, 48, 48, 91, 92, 93, 94, 48,
/* ` a b c d e f g */
96, 48, 48, 48, 48, 48, 48, 48,
/* h i j k l m n o */
48, 48, 48, 48, 48, 48, 48, 48,
/* p q r s t u v w */
48, 48, 48, 48, 48, 48, 48, 48,
/* x y z { | } ~ DEL */
48, 48, 48, 123, 124, 125, 126, 1,
/* x80 x81 x82 x83 IND NEL SSA ESA */
1, 1, 1, 1, 1, 1, 1, 1,
/* HTS HTJ VTS PLD PLU RI SS2 SS3 */
1, 1, 1, 1, 1, 1, 1, 1,
/* DCS PU1 PU2 STS CCH MW SPA EPA */
1, 1, 1, 1, 1, 1, 1, 1,
/* x98 x99 x9A CSI ST OSC PM APC */
1, 1, 1, 1, 1, 1, 1, 1,
/* - i c/ L ox Y- | So */
160, 161, 162, 163, 164, 165, 166, 167,
/* .. c0 ip << _ R0 - */
168, 169, 170, 171, 172, 173, 174, 175,
/* o +- 2 3 ' u q| . */
176, 177, 178, 179, 180, 181, 182, 183,
/* , 1 2 >> 1/4 1/2 3/4 ? */
184, 185, 186, 187, 188, 189, 190, 191,
/* A` A' A^ A~ A: Ao AE C, */
48, 48, 48, 48, 48, 48, 48, 48,
/* E` E' E^ E: I` I' I^ I: */
48, 48, 48, 48, 48, 48, 48, 48,
/* D- N~ O` O' O^ O~ O: X */
48, 48, 48, 48, 48, 48, 48, 216,
/* O/ U` U' U^ U: Y' P B */
48, 48, 48, 48, 48, 48, 48, 48,
/* a` a' a^ a~ a: ao ae c, */
48, 48, 48, 48, 48, 48, 48, 48,
/* e` e' e^ e: i` i' i^ i: */
48, 48, 48, 48, 48, 48, 48, 48,
/* d n~ o` o' o^ o~ o: -: */
48, 48, 48, 48, 48, 48, 48, 248,
/* o/ u` u' u^ u: y' P y: */
48, 48, 48, 48, 48, 48, 48, 48};
For example, the string ``33:48,37:48,45-47:48,64:48'' indicates that the exclamation
mark, percent sign, dash, period, slash, and ampersand characters should
be treated the same way as characters and numbers. This is useful for cutting
and pasting electronic mailing addresses and filenames.
It is possible
to rebind keys (or sequences of keys) to arbitrary strings for input, by
changing the translations for the vt100 or tek4014 widgets. Changing the
translations for events other than key and button events is not expected,
and will cause unpredictable behavior. The following actions are provided
for using within the vt100 or tek4014 translations resources:
- allow-send-events(on/off/toggle)
- This action set or toggles the allowSendEvents resource and is also invoked
by the allowsends entry in mainMenu.
- bell([percent])
- This action rings the
keyboard bell at the specified percentage above or below the base volume.
- clear-saved-lines()
- This action does hard-reset() (see below) and also clears
the history of lines saved off the top of the screen. It is also invoked
from the clearsavedlines entry in vtMenu. The effect is identical to a hardware
reset (RIS) control sequence.
- create-menu(m/v/f/t)
- This action creates one
of the menus used by xterm, if it has not been previously created. The parameter
values are the menu names: mainMenu, vtMenu, fontMenu, tekMenu, respectively.
- deiconify()
- Changes the window state back to normal, if it was iconified.
- delete-is-del()
- This action toggles the state of the deleteIsDEL resource.
- dired-button()
- Handles a button event (other than press and release) by
echoing the event's position (i.e., character line and column) in the following
format:
^X ESC G <line+' '> <col+' '>
- iconify()
- Iconifies the window.
- hard-reset()
- This action resets the scrolling region, tabs, window size, and cursor
keys and clears the screen. It is also invoked from the hardreset entry
in vtMenu.
- ignore()
- This action ignores the event but checks for special
pointer position escape sequences.
- insert()
- This action inserts the character
or string associated with the key that was pressed.
- insert-eight-bit()
- This
action inserts an eight-bit (Meta) version of the character or string associated
with the key that was pressed. The exact action depends on the value of
the metaSendsEscape and the eightBitInput resources.
- insert-selection(sourcename
[, ...])
- This action inserts the string found in the selection or cutbuffer
indicated by sourcename. Sources are checked in the order given (case is
significant) until one is found. Commonly-used selections include: PRIMARY,
SECONDARY, and CLIPBOARD. Cut buffers are typically named CUT_BUFFER0 through
CUT_BUFFER7.
- insert-seven-bit()
- This action is a synonym for insert()
- interpret(control-sequence)
- Interpret the given control sequence locally, i.e., without passing it to
the host. This works by inserting the control sequence at the front of
the input buffer. Use "\" to escape octal digits in the string. Xt does not
allow you to put a null character (i.e., "\000") in the string.
- keymap(name)
- This action dynamically defines a new translation table whose resource
name is name with the suffix Keymap (case is significant). The name None
restores the original translation table.
- maximize()
- Resizes the window to
fill the screen.
- meta-sends-escape()
- This action toggles the state of the
metaSendsEscape resource.
- popup-menu(menuname)
- This action displays the specified
popup menu. Valid names (case is significant) include: mainMenu, vtMenu,
fontMenu, and tekMenu.
- print()
- This action prints the window and is also
invoked by the print entry in mainMenu.
- quit()
- This action sends a SIGHUP
to the subprogram and exits. It is also invoked by the quit entry in mainMenu.
- redraw()
- This action redraws the window and is also invoked by the redraw
entry in mainMenu.
- restore()
- Restores the window to the size before it was
last maximized.
- scroll-back(count [,units [,mouse] ])
- This action scrolls
the text window backward so that text that had previously scrolled off
the top of the screen is now visible. The count argument indicates the
number of units (which may be page, halfpage, pixel, or line) by which
to scroll. If the third parameter mouse is given, the action is ignored
when mouse reporting is enabled.
- scroll-forw(count [,units [,mouse] ])
- This
action scrolls is similar to scroll-back except that it scrolls the other
direction.
- secure()
- This action toggles the Secure Keyboard mode described
in the section named SECURITY, and is invoked from the securekbd entry
in mainMenu.
- select-cursor-end(destname [, ...])
- This action is similar to select-end
except that it should be used with select-cursor-start.
- select-cursor-start()
- This action is similar to select-start except that it begins the selection
at the current text cursor position.
- select-end(destname [, ...])
- This action
puts the currently selected text into all of the selections or cutbuffers
specified by destname.
- select-extend()
- This action tracks the pointer and
extends the selection. It should only be bound to Motion events.
- select-set()
- This action stores text that corresponds to the current selection, without
affecting the selection mode.
- select-start()
- This action begins text selection
at the current pointer location. See the section on POINTER USAGE for information
on making selections.
- send-signal(signame)
- This action sends the signal named
by signame to the xterm subprocess (the shell or program specified with
the -e command line option) and is also invoked by the suspend, continue,
interrupt, hangup, terminate, and kill entries in mainMenu. Allowable signal
names are (case is not significant): tstp (if supported by the operating
system), suspend (same as tstp), cont (if supported by the operating system),
int, hup, term, quit, alrm, alarm (same as alrm) and kill.
- set-allow132(on/off/toggle)
- This action toggles the c132 resource and is also invoked from the allow132
entry in vtMenu.
- set-altscreen(on/off/toggle)
- This action toggles between
the alternate and current screens.
- set-appcursor(on/off/toggle)
- This action
toggles the handling Application Cursor Key mode and is also invoked by
the appcursor entry in vtMenu.
- set-appkeypad(on/off/toggle)
- This action toggles
the handling of Application Keypad mode and is also invoked by the appkeypad
entry in vtMenu.
- set-autolinefeed(on/off/toggle)
- This action toggles automatic
insertion of linefeeds and is also invoked by the autolinefeed entry in
vtMenu.
- set-autowrap(on/off/toggle)
- This action toggles automatic wrapping
of long lines and is also invoked by the autowrap entry in vtMenu.
- set-backarrow(on/off/toggle)
- This action toggles the backarrowKey resource and is also invoked from
the backarrow key entry in vtMenu.
- set-cursorblink(on/off/toggle)
- This action
toggles the cursorBlink resource and is also invoked from the cursorblink
entry in vtMenu.
- set-cursesemul(on/off/toggle)
- This action toggles the curses
resource and is also invoked from the cursesemul entry in vtMenu.
- set-font-doublesize(on/off/toggle)
- This action toggles the fontDoublesize resource and is also invoked by
the font-doublesize entry in fontMenu.
- set-hp-function-keys(on/off/toggle)
- This action toggles the hpFunctionKeys resource and is also invoked by
the hpFunctionKeys entry in mainMenu.
- set-jumpscroll(on/off/toggle)
- This
action toggles the jumpscroll resource and is also invoked by the jumpscroll
entry in vtMenu.
- set-font-linedrawing(on/off/toggle)
- This action toggles the
xterm's state regarding whether the current font has line-drawing characters
and whether it should draw them directly. It is also invoked by the font-linedrawing
entry in fontMenu.
- set-logging()
- This action toggles the state of the logging
option.
- set-old-function-keys(on/off/toggle)
- This action toggles the state
of legacy function keys and is also invoked by the oldFunctionKeys entry
in mainMenu.
- set-marginbell(on/off/toggle)
- This action toggles the marginBell
resource and is also invoked from the marginbell entry in vtMenu.
- set-num-lock()
- This action toggles the state of the numLock resource.
- set-reverse-video(on/off/toggle)
- This action toggles the reverseVideo resource and is also invoked by the
reversevideo entry in vtMenu.
- set-reversewrap(on/off/toggle)
- This action
toggles the reverseWrap resource and is also invoked by the reversewrap
entry in vtMenu.
- set-scroll-on-key(on/off/toggle)
- This action toggles the scrollKey
resource and is also invoked from the scrollkey entry in vtMenu.
- set-scroll-on-tty-output(on/off/toggle)
- This action toggles the scrollTtyOutput resource and is also invoked from
the scrollttyoutput entry in vtMenu.
- set-scrollbar(on/off/toggle)
- This action
toggles the scrollbar resource and is also invoked by the scrollbar entry
in vtMenu.
- set-sco-function-keys(on/off/toggle)
- This action toggles the scoFunctionKeys
resource and is also invoked by the scoFunctionKeys entry in mainMenu.
- set-sun-function-keys(on/off/toggle)
- This action toggles the sunFunctionKeys resource and is also invoked by
the sunFunctionKeys entry in mainMenu.
- set-sun-keyboard(on/off/toggle)
- This
action toggles the sunKeyboard resource and is also invoked by the sunKeyboard
entry in mainMenu.
- set-tek-text(large/2/3/small)
- This action sets font used
in the Tektronix window to the value of the resources tektextlarge, tektext2,
tektext3, and tektextsmall according to the argument. It is also by the
entries of the same names as the resources in tekMenu.
- set-terminal-type(type)
- This action directs output to either the vt or tek windows, according to
the type string. It is also invoked by the tekmode entry in vtMenu and
the vtmode entry in tekMenu.
- set-titeInhibit(on/off/toggle)
- This action toggles
the titeInhibit resource, which controls switching between the alternate
and current screens.
- set-visibility(vt/tek,on/off/toggle)
- This action controls
whether or not the vt or tek windows are visible. It is also invoked from
the tekshow and vthide entries in vtMenu and the vtshow and tekhide entries
in tekMenu.
- set-visual-bell(on/off/toggle)
- This action toggles the visualBell
resource and is also invoked by the visualbell entry in vtMenu.
- set-vt-font(d/1/2/3/4/5/6/e/s
[,normalfont [, boldfont]])
- This action sets the font or fonts currently
being used in the VT102 window. The first argument is a single character
that specifies the font to be used: d or D indicate the default font (the
font initially used when xterm was started), 1 through 6 indicate the fonts
specified by the font1 through font6 resources, e or E indicate the normal,
bold and wide fonts that have been set through escape codes (or specified
as the second, third and fourth action arguments, respectively), and s
or S indicate the font selection (as made by programs such as xfontsel(1)
)
indicated by the second action argument.
- soft-reset()
- This action resets
the scrolling region and is also invoked from the softreset entry in vtMenu.
The effect is identical to a soft reset (DECSTR) control sequence.
- start-extend()
- This action is similar to select-start except that the selection is extended
to the current pointer location.
- start-cursor-extend()
- This action is similar
to select-extend except that the selection is extended to the current text
cursor position.
- string(string)
- This action inserts the specified text string
as if it had been typed. Quotation is necessary if the string contains whitespace
or non-alphanumeric characters. If the string argument begins with the characters
``0x'', it is interpreted as a hex character constant.
- tek-copy()
- This action
copies the escape codes used to generate the current window contents to
a file in the current directory beginning with the name COPY. It is also
invoked from the tekcopy entry in tekMenu.
- tek-page()
- This action clears
the Tektronix window and is also invoked by the tekpage entry in tekMenu.
- tek-reset()
- This action resets the Tektronix window and is also invoked
by the tekreset entry in tekMenu.
- vi-button()
- Handles a button event (other
than press and release) by echoing a control sequence computed from the
event's line number in the screen relative to the current line:
ESC ^P
or ESC ^N
according to whether the event is before, or after the current
line, respectively. The ^N (or ^P) is repeated once for each line that the
event differs from the current line. The control sequence is omitted altogether
if the button event is on the current line.
- visual-bell()
- This action flashes
the window quickly.
The Tektronix window also has the following action:
- gin-press(l/L/m/M/r/R)
- This action sends the indicated graphics input code.
The default bindings in the VT102 window are:
Shift <KeyPress> Prior:scroll-back(1,halfpage) \n\
Shift <KeyPress> Next:scroll-forw(1,halfpage) \n\
Shift <KeyPress> Select:select-cursor-start() \
select-cursor-end(PRIMARY, CUT_BUFFER0)
\n\
Shift <KeyPress> Insert:insert-selection(PRIMARY, CUT_BUFFER0) \n\
~Meta <KeyPress>:insert-seven-bit() \n\
Meta <KeyPress>:insert-eight-bit() \n\
!Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
!Lock Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
!Lock Ctrl @Num_Lock <Btn1Down>:popup-menu(mainMenu) \n\
! @Num_Lock Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
~Meta <Btn1Down>:select-start() \n\
~Meta <Btn1Motion>:select-extend() \n\
!Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
!Lock Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
!Lock Ctrl @Num_Lock <Btn2Down>:popup-menu(vtMenu) \n\
! @Num_Lock Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
~Ctrl ~Meta <Btn2Down>:ignore() \n\
Meta <Btn2Down>:clear-saved-lines() \n\
~Ctrl ~Meta <Btn2Up>:insert-selection(PRIMARY, CUT_BUFFER0) \n\
!Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
!Lock Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
!Lock Ctrl @Num_Lock <Btn3Down>:popup-menu(fontMenu) \n\
! @Num_Lock Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
~Ctrl ~Meta <Btn3Down>:start-extend() \n\
~Meta <Btn3Motion>:select-extend() \n\
Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
Lock @Num_Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
@Num_Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
<Btn4Down>:scroll-back(5,line,m) \n\
Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
Lock @Num_Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
@Num_Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
<Btn5Down>:scroll-forw(5,line,m) \n\
<BtnUp>:select-end(PRIMARY, CUT_BUFFER0) \n\
<BtnDown>:bell(0)
The default bindings in the Tektronix window are:
~Meta<KeyPress>: insert-seven-bit() \n\
Meta<KeyPress>: insert-eight-bit() \n\
!Ctrl <Btn1Down>: popup-menu(mainMenu) \n\
!Lock Ctrl <Btn1Down>: popup-menu(mainMenu) \n\
!Lock Ctrl @Num_Lock <Btn1Down>: popup-menu(mainMenu) \n\
!Ctrl @Num_Lock <Btn1Down>: popup-menu(mainMenu) \n\
!Ctrl <Btn2Down>: popup-menu(tekMenu) \n\
!Lock Ctrl <Btn2Down>: popup-menu(tekMenu) \n\
!Lock Ctrl @Num_Lock <Btn2Down>: popup-menu(tekMenu) \n\
!Ctrl @Num_Lock <Btn2Down>: popup-menu(tekMenu) \n\
Shift ~Meta<Btn1Down>: gin-press(L) \n\
~Meta<Btn1Down>: gin-press(l) \n\
Shift ~Meta<Btn2Down>: gin-press(M) \n\
~Meta<Btn2Down>: gin-press(m) \n\
Shift ~Meta<Btn3Down>: gin-press(R) \n\
~Meta<Btn3Down>: gin-press(r)
Below is a sample how of the keymap() action is used to add special keys
for entering commonly-typed works:
*VT100.Translations: #override <Key>F13: keymap(dbx)
*VT100.dbxKeymap.translations: \
<Key>F14: keymap(None) \n\
<Key>F17: string("next") string(0x0d) \n\
<Key>F18: string("step") string(0x0d) \n\
<Key>F19: string("continue") string(0x0d) \n\
<Key>F20: string("print ") insert-selection(PRIMARY, CUT_BUFFER0)
The Xterm Control Sequences document lists
the control sequences which an application can send xterm to make it perform
various operations. Most of these operations are standardized, from either
the DEC or Tektronix terminals, or from more widely used standards such
as ISO 6429.
Xterm sets the environment variables ``TERM'' for the
window you have created. It also uses and sets the environment variable
``DISPLAY'' to specify which bit map display terminal to use. The environment
variable ``WINDOWID'' is set to the X window id number of the xterm window.
Depending on your system configuration, xterm may also set the following:
- COLUMNS
- the width of the xterm in characters (cf: "stty columns").
- HOME
- when xterm is configured to update utmp.
- LINES
- the height of the xterm in
characters (cf: "stty rows").
- LOGNAME
- when xterm is configured to update
utmp.
- SHELL
- when xterm is configured to update utmp.
- TERMCAP
- the contents
of the termcap entry corresponding to $TERM, with lines and columns values
substituted for the actual size window you have created.
- TERMINFO
- may be
defined to a nonstandard location in the configure script.
The actual
pathnames given may differ on your system.
- /etc/utmp
- the system logfile,
which records user logins.
- /etc/wtmp
- the system logfile, which records user
logins and logouts.
- /usr/lib/X11/app-defaults/XTerm
- the xterm default application
resources.
- /usr/lib/X11/app-defaults/XTerm-color
- the xterm color application
resources. If your display supports color, use this *customization: -color
in your .Xdefaults file to automatically turn on color in xterm and similar
applications.
resize(1)
, X(1)
, pty(4)
, tty(4)
Xterm Control Sequences (this is the file ctlseqs.ms).
http://dickey.his.com/xterm/xterm.html
Large pastes do not work on some systems. This is not a bug in xterm;
it is a bug in the pseudo terminal driver of those systems. xterm feeds
large pastes to the pty only as fast as the pty will accept data, but some
pty drivers do not return enough information to know if the write has succeeded.
Many of the options are not resettable after xterm starts.
This program
still needs to be rewritten. It should be split into very modular sections,
with the various emulators being completely separate widgets that don't
know about each other. Ideally, you'd like to be able to pick and choose
emulator widgets and stick them into a single control widget.
There needs
to be a dialog box to allow entry of the Tek COPY file name.
Far
too many people, including:
Loretta Guarino Reid (DEC-UEG-WSL), Joel McCormack
(DEC-UEG-WSL), Terry Weissman (DEC-UEG-WSL), Edward Moy (Berkeley), Ralph R.
Swick (MIT-Athena), Mark Vandevoorde (MIT-Athena), Bob McNamara (DEC-MAD),
Jim Gettys (MIT-Athena), Bob Scheifler (MIT X Consortium), Doug Mink (SAO),
Steve Pitschke (Stellar), Ron Newman (MIT-Athena), Jim Fulton (MIT X Consortium),
Dave Serisky (HP), Jonathan Kamens (MIT-Athena), Jason Bacon <acadix@execpc.com>,
Stephen P. Wall <steve_wall@redcom.com>, David Wexelblat, and Thomas Dickey
(XFree86 Project).
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