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XTERM(1) XTERM(1)

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[править] NAME

      xterm - terminal emulator for X

[править] SYNOPSIS

      xterm [-toolkitoption ...] [-option ...] [shell]

[править] DESCRIPTION

      The  xterm  program is a terminal emulator for the X Window System.  It
      provides DEC VT102/VT220 and selected features from higher-level termi-
      nals  such  as  VT320/VT420/VT520  (VTxxx).  It also provides Tektronix
      4014 emulation for programs that cannot use the window system directly.
      If the underlying operating system supports terminal resizing capabili-
      ties (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.
      The VTxxx and Tektronix 4014 terminals each have their  own  window  so
      that  you can edit text in one and look at graphics in the other at the
      same time.  To maintain the correct aspect ratio  (height/width),  Tek-
      tronix  graphics  will  be  restricted to the largest box with a 4014's
      aspect ratio that will fit in the window.  This box is located  in  the
      upper left area of the window.
      Although both windows may be displayed at the same time, one of them is
      considered the "active" window for receiving keyboard input and  termi-
      nal  output.   This  is  the window that contains the text cursor.  The
      active window can be chosen through escape sequences, the "VT  Options"
      menu  in  the VTxxx window, and the "Tek Options" menu in the 4014 win-
      dow.

[править] EMULATIONS

      The VT102 emulation is fairly complete, but does  not  support  autore-
      peat.   Double-size  characters  are  displayed  properly  if your font
      server supports scalable fonts.  The VT220 emulation does  not  support
      soft  fonts,  it  is  otherwise complete.  Termcap(5) entries that work
      with xterm  include  an  optional  platform-specific  entry  ("xterm"),
      "xterm",  "vt102",  "vt100",  "ansi"  and  "dumb".  xterm automatically
      searches the termcap file in this order for these entries and then sets
      the  "TERM"  and the "TERMCAP" environment variables.  You may also use
      "vt220",  but must set the terminal emulation level with the  decTermi-
      nalID  resource.   (The  "TERMCAP"  environment  variable is not set if
      xterm is linked against a terminfo library, since the requisite  infor-
      mation is not provided by the termcap emulation of terminfo libraries).
      Many of the special xterm features may be modified under  program  con-
      trol  through  a  set  of  escape sequences different from the standard
      VT102 escape sequences.  (See the Xterm Control Sequences document.)
      The Tektronix 4014 emulation is also fairly good.  It  supports  12-bit
      graphics  addressing,  scaled  to the window size.  Four different font
      sizes and five different lines types are supported.  There is no write-
      through  or  defocused  mode  support.  The Tektronix text and graphics
      commands are recorded internally by xterm and may be written to a  file
      by sending the COPY escape sequence (or through the Tektronix menu; see
      below).  The name of the file will be "COPYyyyy-MM-dd.hh:mm:ss",  where
      yyyy,  MM, dd, hh, mm and ss are the year, month, day, hour, minute and
      second when the COPY was performed (the file is created in  the  direc-
      tory xterm is started in, or the home directory for a login xterm).
      Not all of the features described in this manual are necessarily avail-
      able in this version of xterm.  Some (e.g., the  non-VT220  extensions)
      are  available only if they were compiled in, though the most commonly-
      used are in the default configuration.

[править] OTHER FEATURES

      Xterm automatically highlights the text cursor when the pointer  enters
      the  window  (selected) and unhighlights it when the pointer leaves the
      window (unselected).  If the window is the focus window, then the  text
      cursor is highlighted no matter where the pointer is.
      In VT102 mode, there are escape sequences to activate and deactivate an
      alternate screen buffer, which is the same size as the display area  of
      the  window.   When activated, the current screen is saved and replaced
      with the alternate screen.  Saving of lines scrolled off the top of the
      window is disabled until the normal screen is restored.  The termcap(5)
      entry for xterm allows the visual editor vi(1) to switch to the  alter-
      nate  screen  for  editing  and to restore the screen on exit.  A popup
      menu entry makes it simple to switch between the normal  and  alternate
      screens for cut and paste.
      In either VT102 or Tektronix mode, there are escape sequences to change
      the name of the windows.  Additionally, in VT102 mode, xterm implements
      the window-manipulation control sequences from dtterm, such as resizing
      the window, setting its location on the screen.
      Xterm allows character-based applications to receive mouse events (cur-
      rently  button-press  and  release events, and button-motion events) as
      keyboard control sequences.  See Xterm Control Sequences for details.

[править] OPTIONS

      The xterm terminal emulator accepts the standard X Toolkit command line
      options  as  well  as many application-specific options.  If the option
      begins with a `+' instead of a `-',  the  option  is  restored  to  its
      default  value.  The -version and -help options are interpreted even if
      xterm cannot open the display, and are useful for testing and  configu-
      ration  scripts.   Along  with  -class,  they  are checked before other
      options.
      -version
              This causes xterm to print a version  number  to  the  standard
              output, and then exit.
      -help   This causes xterm to print out a verbose message describing its
              options, one per line.  The message is written to the  standard
              output.  After printing the message, xterm exits.  Xterm gener-
              ates this message, sorting it and noting whether a "-option" or
              a  "+option"  turns  the feature on or off, since some features
              historically have been one or the  other.   Xterm  generates  a
              concise  help  message  (multiple  options  per  line)  when an
              unknown option is used, e.g.,
                  xterm -z
              If the logic for a particular option such  as  logging  is  not
              compiled  into xterm, the help text for that option also is not
              displayed by the -help option.
      One parameter (after all options) may be given.  That overrides xterm's
      built-in  choice  of  shell  program.   Normally xterm checks the SHELL
      variable.  If that is not set, xterm tries to  use  the  shell  program
      specified  in  the  password  file.   If  that  is  not set, xterm uses
      /bin/sh.  If the parameter is not a relative path, i.e., beginning with
      "./"  or "../", xterm looks for the file in the user's PATH.  In either
      case, it constructs an absolute path.  The -e  option  cannot  be  used
      with  this parameter since it uses all parameters following the option.
      The other options are used to control the appearance and behavior.  Not
      all options are necessarily configured into your copy of xterm:
      -132    Normally,  the  VT102  DECCOLM  escape  sequence  that switches
              between 80 and 132 column mode is ignored.  This option  causes
              the  DECCOLM  escape  sequence  to be recognized, and the xterm
              window will resize appropriately.
      -ah     This option indicates that xterm should  always  highlight  the
              text cursor.  By default, xterm will display a hollow text cur-
              sor whenever the focus is lost or the pointer leaves  the  win-
              dow.
      +ah     This  option  indicates  that xterm should do text cursor high-
              lighting based on focus.
      -ai     This option disables active icon support if  that  feature  was
              compiled  into  xterm.  This is equivalent to setting the vt100
              resource activeIcon to "false".
      +ai     This option enables active icon support  if  that  feature  was
              compiled  into  xterm.  This is equivalent to setting the vt100
              resource activeIcon to "true".
      -aw     This option indicates that auto-wraparound should  be  allowed.
              This  allows  the cursor to automatically wrap to the beginning
              of the next line when it is at the rightmost position of a line
              and text is output.
      +aw     This  option  indicates  that  auto-wraparound  should  not  be
              allowed.
      -b number
              This option specifies the size of the inner  border  (the  dis-
              tance  between  the outer edge of the characters and the window
              border) in pixels.  That is the vt100 internalBorder  resource.
              The default is "2".
      +bc     turn  off text cursor blinking.  This overrides the cursorBlink
              resource.
      -bc     turn on text cursor blinking.  This overrides  the  cursorBlink
              resource.
      -bcf milliseconds
              set the amount of time text cursor is off when blinking via the
              cursorOffTime resource.
      -bcn milliseconds
              set the amount of time text cursor is on when blinking via  the
              cursorOffTime resource.
      -bdc    Set  the  vt100  resource colorBDMode to "false", disabling the
              display of characters with bold attribute as color
      +bdc    Set the vt100 resource colorBDMode to "true", enabling the dis-
              play  of  characters  with  bold attribute as color rather than
              bold
      -cb     Set the vt100 resource cutToBeginningOfLine to "false".
      +cb     Set the vt100 resource cutToBeginningOfLine to "true".
      -cc characterclassrange:value[,...]
              This sets classes indicated by the given ranges  for  using  in
              selecting  by  words.   See  the  section  specifying character
              classes.  and discussion of the charClass resource.
      -cjk_width
              Set the cjkWidth resource to "true".  When turned  on,  charac-
              ters  with  East  Asian Ambiguous (A) category in UTR 11 have a
              column width of 2.  Otherwise, they have a column width  of  1.
              This may be useful for some legacy CJK text terminal-based pro-
              grams assuming box drawings and others to have a  column  width
              of  2.  It also should be turned on when you specify a TrueType
              CJK double-width (bi-width/monospace) font either with  -fa  at
              the command line or faceName resource.  The default is "false"
      +cjk_width
              Reset the cjkWidth resource.
      -class string
              This  option  allows  you  to  override xterm's resource class.
              Normally it is "XTerm", but can be set to another class such as
              "UXTerm" to override selected resources.
      -cm     This  option  disables  recognition of ANSI color-change escape
              sequences.  It sets the colorMode resource to "false".
      +cm     This option enables recognition  of  ANSI  color-change  escape
              sequences.  This is the same as the vt100 resource colorMode.
      -cn     This  option indicates that newlines should not be cut in line-
              mode selections.  It sets the cutNewline resource to "false".
      +cn     This option indicates that newlines should be cut in  line-mode
              selections.  It sets the cutNewline resource to "true".
      -cr color
              This  option  specifies  the color to use for text cursor.  The
              default is to use the same foreground color that  is  used  for
              text.  It sets the cursorColor resource according to the param-
              eter.
      -cu     This option indicates that xterm should work around  a  bug  in
              the more(1) program that causes it to incorrectly display lines
              that are exactly the width of the window and are followed by  a
              line beginning with a tab (the leading tabs are not displayed).
              This option is so named because it was originally thought to be
              a bug in the curses(3x) cursor motion package.
      +cu     This  option  indicates  that  xterm should not work around the
              more(1) bug mentioned above.
      -dc     This option disables the escape sequence to change dynamic col-
              ors:  the vt100 foreground and background colors, its text cur-
              sor color, the pointer cursor foreground and background colors,
              the  Tektronix  emulator  foreground and background colors, its
              text cursor color and highlight color.   The  option  sets  the
              dynamicColors option to "false".
      +dc     This  option enables the escape sequence to change dynamic col-
              ors.  The option sets the dynamicColors option to "true".
      -e program [ arguments ... ]
              This option specifies the program (and its command  line  argu-
              ments)  to be run in the xterm window.  It also sets the window
              title and icon name to be the basename  of  the  program  being
              executed  if  neither  -T nor -n are given on the command line.
              This must be the last option on the command line.
      -en encoding
              This option determines the encoding on which  xterm  runs.   It
              sets  the locale resource.  Encodings other than UTF-8 are sup-
              ported by using luit.  The -lc option should be used instead of
              -en for systems with locale support.
      -fb font
              This  option  specifies  a font to be used when displaying bold
              text.  It sets the boldFont resource.
              This font must be the same height and width as the normal font,
              otherwise  it  is  ignored.   If only one of the normal or bold
              fonts is specified, it will be used as the normal font and  the
              bold font will be produced by overstriking this font.
              See   also   the  discussion  of  boldMode  and  alwaysBoldMode
              resources.
      -fa pattern
              This option sets  the  pattern  for  fonts  selected  from  the
              FreeType  library if support for that library was compiled into
              xterm.  This corresponds to the faceName resource.  When a  CJK
              double-width  font  is  specified, you also need to turn on the
              cjkWidth resource.
              See also the renderFont resource, which combines with  this  to
              determine whether FreeType fonts are initially active.
      -fbb    This option indicates that xterm should compare normal and bold
              fonts bounding boxes to ensure they are  compatible.   It  sets
              the freeBoldBox resource to "false".
      +fbb    This  option indicates that xterm should not compare normal and
              bold fonts bounding boxes to ensure they  are  compatible.   It
              sets the freeBoldBox resource to "true".
      -fbx    This  option  indicates  that  xterm should not assume that the
              normal and bold fonts have VT100 line-drawing  characters.   If
              any  are  missing, xterm will draw the characters directly.  It
              sets the forceBoxChars resource to "false".
      +fbx    This option indicates that xterm should assume that the  normal
              and bold fonts have VT100 line-drawing characters.  It sets the
              forceBoxChars resource to "true".
      -fd pattern
              This option sets the pattern for  double-width  fonts  selected
              from  the FreeType library if support for that library was com-
              piled into xterm.  This corresponds to  the  faceNameDoublesize
              resource.
      -fi font
              This  option sets the font for active icons if that feature was
              compiled into xterm.
              See also the discussion of the iconFont resource.
      -fs size
              This option sets the pointsize  for  fonts  selected  from  the
              FreeType  library if support for that library was compiled into
              xterm.  This corresponds to the faceSize resource.
      -fullscreen
              This option indicates that xterm should ask the window  manager
              to let it use the full-screen for display, e.g., without window
              decorations.  It sets the fullscreen resource to "true".
      +fullscreen
              This option indicates that xterm should not ask the window man-
              ager  to  let  it use the full-screen for display.  It sets the
              fullscreen resource to "false".
      -fw font
              This option specifies the font to be used for  displaying  wide
              text.   By default, it will attempt to use a font twice as wide
              as the font that will be used to draw normal text.  If no  dou-
              ble-width  font  is found, it will improvise, by stretching the
              normal font.  This corresponds to the wideFont resource.
      -fwb font
              This option specifies the font to be used for  displaying  bold
              wide  text.  By default, it will attempt to use a font twice as
              wide as the font that will be used to draw bold  text.   If  no
              double-width  font  is  found, it will improvise, by stretching
              the bold font.  This corresponds to the wideBoldFont  resource.
      -fx font
              This  option  specifies  the font to be used for displaying the
              preedit string in the "OverTheSpot" input method.
              See also the discussion of the ximFont resource.
      -hc color
              (see -selbg).
      -hf     This option indicates that HP Function Key escape codes  should
              be  generated  for  function  keys.  It sets the hpFunctionKeys
              resource to "true".
      +hf     This option indicates that HP Function Key escape codes  should
              not be generated for function keys.  It sets the hpFunctionKeys
              resource to "false".
      -hm     Tells xterm to use  highlightTextColor  and  highlightColor  to
              override  the reversed foreground/background colors in a selec-
              tion.  It sets the highlightColorMode resource to "true".
      +hm     Tells xterm not to use highlightTextColor and highlightColor to
              override  the reversed foreground/background colors in a selec-
              tion.  It sets the highlightColorMode resource to "false".
      -hold   Turn on the hold resource, i.e.,  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  win-
              dow,  or  if you use the menu entries that send a signal, e.g.,
              HUP or KILL.
      +hold   Turn off  the  hold  resource,  i.e.,  xterm  will  immediately
              destroy its window when the shell command completes.
      -ie     Turn on the ptyInitialErase resource, i.e., use the pseudo-ter-
              minal's sense of the stty erase value.
      +ie     Turn off the ptyInitialErase resource, i.e., set the stty erase
              value  using  the  kb string from the termcap entry as a refer-
              ence, if available.
      -im     Turn on the useInsertMode resource, which forces use of  insert
              mode  by  adding appropriate entries to the TERMCAP environment
              variable.
      +im     Turn off the useInsertMode resource.
      -into windowId
              Given an X window identifier (an integer, which can be hexadec-
              imal,  octal  or  decimal  according  to whether it begins with
              "0x", "0" or neither), xterm will reparent its top-level  shell
              widget  to  that  window.   This  is used to embed xterm within
              other applications.
      For instance, there are scripts for Tcl/Tk and Gtk which can be used to
      demonstrate the feature.  When using Gtk, there is a limitation of that
      toolkit  which  requires  that  xterm's  allowSendEvents  resource   is
      enabled.
      -j      This  option indicates that xterm should do jump scrolling.  It
              corresponds to the  jumpScroll  resource.   Normally,  text  is
              scrolled  one  line at a time; this option allows xterm to move
              multiple lines at a time so  that  it  does  not  fall  as  far
              behind.   Its  use is strongly recommended since it makes xterm
              much faster when scanning through large amounts of  text.   The
              VT100 escape sequences for enabling and disabling smooth scroll
              as well as the "VT Options" menu can be used to turn this  fea-
              ture on or off.
      +j      This  option indicates that xterm should not do jump scrolling.
      -k8     This  option  sets   the   allowC1Printable   resource.    When
              allowC1Printable is set, xterm overrides the mapping of C1 con-
              trol characters (code 128-159) to treat them as printable.
      +k8     This option resets the allowC1Printable resource.
      -kt keyboardtype
              This option sets the keyboardType  resource.   Possible  values
              include:  "unknown",  "default", "hp", "sco", "sun", "tcap" and
              "vt220".
              The value "unknown", causes the corresponding  resource  to  be
              ignored.
              The   value  "default",  suppresses  the  associated  resources
              hpFunctionKeys, scoFunctionKeys, sunFunctionKeys, tcapFunction-
              Keys and sunKeyboard, using the Sun/PC keyboard layout.
      -l      Turn  logging  on.   Normally  logging is not supported, due to
              security concerns.  Some versions of  xterm  may  have  logging
              enabled.   The  logfile  is written to the directory from which
              xterm is invoked.  The filename is generated, of the form
                   XtermLog.XXXXXX
              or
                   Xterm.log.hostname.yyyy.mm.dd.hh.mm.ss.XXXXXX
              depending on how xterm was built.
      +l      Turn logging off.
      -lc     Turn on support of various encodings according  to  the  users'
              locale  setting,  i.e.,  LC_ALL,  LC_CTYPE, or LANG environment
              variables.  This is achieved by turning on UTF-8  mode  and  by
              invoking  luit  for  conversion  between  locale  encodings and
              UTF-8.  (luit is not invoked in UTF-8  locales.)   This  corre-
              sponds to the locale resource.
              The  actual list of encodings which are supported is determined
              by luit.  Consult the luit manual page for further details.
              See also the discussion of the -u8 option which supports  UTF-8
              locales.
      +lc     Turn  off  support  of automatic selection of locale encodings.
              Conventional 8bit mode or, in UTF-8 locales or with -u8 option,
              UTF-8 mode will be used.
      -lcc path
              File  name  for the encoding converter from/to locale encodings
              and UTF-8 which is used with -lc  option  or  locale  resource.
              This corresponds to the localeFilter resource.
      -leftbar
              Force  scrollbar to the left side of VT100 screen.  This is the
              default, unless you have set the rightScrollBar resource.
      -lf filename
              Specify the log-filename.  See the -l option.
      -ls     This option indicates that the shell that  is  started  in  the
              xterm  window  will be a login shell (i.e., the first character
              of argv[0] will be a dash, indicating  to  the  shell  that  it
              should read the user's .login or .profile).
              The  -ls  flag and the loginShell resource are ignored if -e is
              also given, because xterm does not know how to make  the  shell
              start  the  given  command  after whatever it does when it is a
              login shell - the user's shell of choice need not be  a  Bourne
              shell  after all.  Also, xterm -e is supposed to provide a con-
              sistent functionality for other applications that need to start
              text-mode  programs  in  a  window,  and if loginShell were not
              ignored, the result of ~/.profile might interfere with that.
              If you do want the effect of -ls and -e simultaneously, you may
              get away with something like
                  xterm -e /bin/bash -l -c "my command here"
              Finally,  -ls  is  not completely ignored, because xterm -ls -e
              does write a /var/log/wtmp entry  (if  configured  to  do  so),
              whereas xterm -e does not.
      -maximized
              This  option indicates that xterm should ask the window manager
              to maximize its layout on startup.   This  corresponds  to  the
              maximized resource.
              Maximizing  is not the reverse of iconifying; it is possible to
              do both with certain window managers.
      +maximized
              This option indicates that xterm should ask the window  manager
              to maximize its layout on startup.
      +ls     This option indicates that the shell that is started should not
              be a login shell (i.e., it will be a normal "subshell").
      -mb     This option indicates that xterm should ring a margin bell when
              the user types near the right end of a line.
      +mb     This option indicates that margin bell should not be rung.
      -mc milliseconds
              This  option  specifies  the  maximum  time between multi-click
              selections.
      -mesg   Turn off the messages resource, i.e., disallow write access  to
              the terminal.
      +mesg   Turn  on the messages resource, i.e., allow write access to the
              terminal.
      -mk_width
              Set the mkWidth resource to "true".  This  makes  xterm  use  a
              built-in  version of the wide-character width calculation.  The
              default is "false"
      +mk_width
              Reset the mkWidth resource.
      -ms color
              This option specifies the color to be used for the pointer cur-
              sor.   The  default  is to use the foreground color.  This sets
              the pointerColor resource.
      -nb number
              This option specifies the number of characters from  the  right
              end  of a line at which the margin bell, if enabled, will ring.
              The default is "10".
      -nul    This option disables the display of underlining.
      +nul    This option enables the display of underlining.
      -pc     This option enables the PC-style use of bold colors (see  bold-
              Colors resource).
      +pc     This option disables the PC-style use of bold colors.
      -pob    This option indicates that the window should be raised whenever
              a Control-G is received.
      +pob    This option indicates that the  window  should  not  be  raised
              whenever a Control-G is received.
      -rightbar
              Force scrollbar to the right side of VT100 screen.
      -rvc    This  option  disables  the  display of characters with reverse
              attribute as color.
      +rvc    This option enables the  display  of  characters  with  reverse
              attribute as color.
      -rw     This   option   indicates  that  reverse-wraparound  should  be
              allowed.  This allows the cursor to back up from  the  leftmost
              column  of  one  line  to  the rightmost column of the previous
              line.  This is very useful for editing long shell command lines
              and  is  encouraged.  This option can be turned on and off from
              the "VT Options" menu.
      +rw     This option indicates that  reverse-wraparound  should  not  be
              allowed.
      -s      This  option  indicates  that  xterm may scroll asynchronously,
              meaning that the screen does not have to be kept completely  up
              to  date while scrolling.  This allows xterm to run faster when
              network latencies are very high and is  typically  useful  when
              running across a very large internet or many gateways.
      +s      This option indicates that xterm should scroll synchronously.
      -samename
              Does  not  send  title  and  icon name change requests when the
              request would have no effect: the name is  not  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.
      +samename
              Always send title and icon name change requests.
      -sb     This  option  indicates  that  some  number  of  lines that are
              scrolled off the top of the window should be saved and  that  a
              scrollbar  should  be  displayed  so  that  those  lines can be
              viewed.  This option may be turned on  and  off  from  the  "VT
              Options" menu.
      +sb     This option indicates that a scrollbar should not be displayed.
      -selbg color
              This option specifies the color to use for  the  background  of
              selected  text.   If not specified, reverse video is used.  See
              the discussion of the highlightColor resource.
      -selfg color
              This option specifies the color to use for selected  text.   If
              not  specified,  reverse  video is used.  See the discussion of
              the highlightTextColor resource.
      -sf     This option indicates that Sun Function Key escape codes should
              be generated for function keys.
      +sf     This  option indicates that the standard escape codes should be
              generated for function keys.
      -sh number
              scale line-height values by the given number.  See the  discus-
              sion of the scaleHeight resource.
      -si     This  option indicates that output to a window should not auto-
              matically reposition the screen to the bottom of the  scrolling
              region.   This  option  can  be  turned on and off from the "VT
              Options" menu.
      +si     This option indicates that output to a window should  cause  it
              to scroll to the bottom.
      -sk     This  option  indicates  that  pressing  a  key while using the
              scrollbar to review previous lines of  text  should  cause  the
              window  to be repositioned automatically in the normal position
              at the bottom of the scroll region.
      +sk     This option indicates that  pressing  a  key  while  using  the
              scrollbar should not cause the window to be repositioned.
      -sl number
              This  option  specifies  the  number of lines to save that have
              been scrolled off the top of the screen.  This  corresponds  to
              the saveLines resource.  The default is "64".
      -sm     This  option,  corresponding  to the sessionMgt resource, indi-
              cates that xterm should set up session manager callbacks.
      +sm     This option indicates that xterm should not set up session man-
              ager callbacks.
      -sp     This  option  indicates that Sun/PC keyboard should be assumed,
              providing mapping for keypad "+' to ",', and  CTRL-F1  to  F13,
              CTRL-F2 to F14, etc.
      +sp     This  option indicates that the standard escape codes should be
              generated for keypad and function keys.
      -t      This option indicates that  xterm  should  start  in  Tektronix
              mode,  rather  than  in  VT102 mode.  Switching between the two
              windows is done using the "Options" menus.  Termcap(5)  entries
              that   work   with   xterm   "tek4014",  "tek4015",  "tek4012",
              "tek4013", "tek4010", and "dumb".  xterm automatically searches
              the  termcap file in this order for these entries and then sets
              the "TERM" and the "TERMCAP" environment variables.
      +t      This option indicates that xterm should start in VT102 mode.
      -tb     This option, corresponding to the toolBar  resource,  indicates
              that  xterm should display a toolbar (or menubar) at the top of
              its window.  The buttons in the toolbar correspond to the popup
              menus, e.g., control/left/mouse for "Main Options".
      +tb     This option indicates that xterm should not set up a toolbar.
      -ti term_id
              Specify  the  name used by xterm to select the correct response
              to terminal ID queries.  It also specifies the emulation level,
              used  to  determine  the  type  of  response  to  a  DA control
              sequence.  Valid values include vt52, vt100, vt101, vt102,  and
              vt220  (the  "vt"  is  optional).  The default is "vt100".  The
              term_id argument specifies the terminal ID to  use.   (This  is
              the same as the decTerminalID resource).
      -tm string
              This  option  specifies  a  series of terminal setting keywords
              followed by the characters that should be bound to those  func-
              tions,  similar  to  the  stty program.  The keywords and their
              values are described in detail in the ttyModes resource.
      -tn name
              This option specifies the name of the terminal type to  be  set
              in  the  TERM  environment  variable.   It  corresponds  to the
              termName resource.  This terminal type must exist in the termi-
              nal  database  (termcap  or terminfo, depending on how xterm is
              built) and should have li# and co# entries.   If  the  terminal
              type  is  not  found,  xterm  uses  the  built-in list "xterm",
              "vt102", etc.
      -u8     This option sets the utf8 resource.  When utf8  is  set,  xterm
              interprets  incoming  data  as  UTF-8.  This sets the wideChars
              resource as a side-effect, but  the  UTF-8  mode  set  by  this
              option  prevents it from being turned off.  If you must turn it
              on and off, use the wideChars resource.
              This option and the utf8 resource are overridden by the -lc and
              -en  options  and  locale resource.  That is, if xterm has been
              compiled to support  luit,  and  the  locale  resource  is  not
              "false"  this  option  is  ignored.  We recommend using the -lc
              option or the "locale: true" resource  in  UTF-8  locales  when
              your  operating  system supports locale, or -en UTF-8 option or
              the "locale: UTF-8" resource when your  operating  system  does
              not support locale.
      +u8     This option resets the utf8 resource.
      -uc     This option makes the cursor underlined instead of a box.
      +uc     This option makes the cursor a box instead of underlined.
      -ulc    This  option  disables the display of characters with underline
              attribute as color rather than with underlining.
      +ulc    This option enables the display of  characters  with  underline
              attribute as color rather than with underlining.
      -ulit   This  option,  corresponding to the italicULMode resource, dis-
              ables the display of characters  with  underline  attribute  as
              italics rather than with underlining.
      +ulit   This   option,  corresponding  to  the  italicULMode  resource,
              enables the display of characters with underline  attribute  as
              italics rather than with underlining.
      -ut     This option indicates that xterm should not write a record into
              the the system utmp log file.
      +ut     This option indicates that xterm should write a record into the
              system utmp log file.
      -vb     This  option  indicates that a visual bell is preferred over an
              audible one.  Instead of ringing the terminal bell  whenever  a
              Control-G is received, the window will be flashed.
      +vb     This option indicates that a visual bell should not be used.
      -wc     This  option  sets  the  wideChars resource.  When wideChars is
              set, xterm maintains internal structures for 16-bit characters.
              If  you  do  not set this resource to "true", xterm will ignore
              the escape sequence which turns UTF-8 mode  on  and  off.   The
              default is "false".
      +wc     This option resets the wideChars resource.
      -wf     This  option indicates that xterm should wait for the window to
              be mapped the first time before starting the subprocess so that
              the  initial  terminal  size settings and environment variables
              are correct.  It is the application's responsibility  to  catch
              subsequent terminal size changes.
      +wf     This  option indicates that xterm should not wait before start-
              ing the subprocess.
      -ziconbeep percent
              Same as zIconBeep resource.  If  percent  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 immedi-
              ately, showing you which window has  the  output.   (A  similar
              feature was in x10 xterm.)
      -C      This  option  indicates that this window should receive console
              output.  This is not supported on all systems.  To obtain  con-
              sole  output,  you must be the owner of the console device, and
              you must have read and write permission for  it.   If  you  are
              running  X under xdm on the console screen you may need to have
              the session startup and reset programs  explicitly  change  the
              ownership  of the console device in order to get this option to
              work.
      -Sccn   This option allows xterm to be used  as  an  input  and  output
              channel  for  an existing program and is sometimes used in spe-
              cialized 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  (the  first  two  are equivalent since the descriptor
              follows the last "/"):
                  -S/dev/pts/123/45
                  -S123/45
                  -Sab34
              Note that xterm does not close any file descriptor which it did
              not  open for its own use.  It is possible (though probably not
              portable) to have an application  which  passes  an  open  file
              descriptor  down  to  xterm  past  the initialization or the -S
              option to a process running in the xterm.
      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  "*tekGe-
              ometry" resource.
      #geom   This  option  specifies the preferred position of the icon win-
              dow.   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  equiva-
              lent to -rv.
      -w number
              This  option  specifies  the width in pixels of the border sur-
              rounding 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 corresponding resource name is borderColor.  xterm
              uses the X Toolkit default, which is "XtDefaultForeground".
      -bg color
              This option specifies the color to use for  the  background  of
              the  window.   The  corresponding  resource name is background.
              The default is "XtDefaultBackground".
      -bw number
              This option specifies the width in pixels of  the  border  sur-
              rounding the window.
              This  appears  to be a legacy of older X releases.  It sets the
              borderWidth resource of  the  shell  widget,  and  may  provide
              advice  to your window manager to set the thickness of the win-
              dow frame.  Most window managers do not use  this  information.
              See the -b option, which controls the inner border of the xterm
              window.
      -display display
              This option specifies the X server to contact; see X(7).
      -fg color
              This option specifies the color to  use  for  displaying  text.
              The  corresponding resource name is foreground.  The default is
              "XtDefaultForeground".
      -fn font
              This option specifies the font to be used for displaying normal
              text.   The  corresponding resource name is font.  The resource
              value default is fixed.
      -font font
              This is the same as -fn.
      -geometry geometry
              This option specifies the preferred size and  position  of  the
              VT102 window; see X(7).
      -iconic This  option indicates that xterm should ask the window manager
              to start it as an icon rather than as the normal  window.   The
              corresponding resource name is iconic.
      -name name
              This   option   specifies  the  application  name  under  which
              resources are to be obtained,  rather  than  the  default  exe-
              cutable  file name.  Name should not contain "." or "*" charac-
              ters.
      -rv     This option indicates that reverse video should be simulated by
              swapping the foreground and background colors.  The correspond-
              ing resource name is reverseVideo.
      +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 sepa-
              rate command line options.

[править] RESOURCES

      The program understands all of the core X Toolkit  resource  names  and
      classes.  Application specific resources (e.g., "XTerm.NAME") follow:
      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  fea-
              ture.
      fullscreen (class Fullscreen)
              Specifies whether or not xterm should ask the window manager to
              use a fullscreen layout on startup.   Xterm  accepts  either  a
              keyword (ignoring case) or the number shown in parentheses:
              false (0)
                 Fullscreen  layout  is  not used initially, but may be later
                 via menu-selection or control sequence.
              true (1)
                 Fullscreen layout is used initially,  but  may  be  disabled
                 later via menu-selection or control sequence.
              always (2)
                 Fullscreen  layout is used initially, and cannot be disabled
                 later via menu-selection or control sequence.
              never (3)
                 Fullscreen layout is not used, and cannot be  enabled  later
                 via menu-selection or control sequence.
              The default is "false".
      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.
              See also the keyboardType resource.
      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,
              e.g., "xterm".
      keyboardType (class KeyboardType)
              Enables  one  (or none) of the various keyboard-type resources:
              hpFunctionKeys, scoFunctionKeys, sunFunctionKeys, tcapFunction-
              Keys  and  sunKeyboard.   The resource's value should be one of
              the  corresponding  strings  "hp",  "sco",  "sun",  "tcap"   or
              "vt220".  The individual resources are provided for legacy sup-
              port; this resource is simpler to use.
              The  default  is  "unknown",  i.e.,  none  of  the   associated
              resources are set via this resource.
      maxBufSize (class MaxBufSize)
              Specify  the  maximum size of the input buffer.  The default is
              "32768".  You cannot set this to a value less than the  minBuf-
              Size  resource.   It  will  be increased as needed to make that
              value evenly divide this one.
              On some systems you may want to increase one  or  both  of  the
              maxBufSize  and  minBufSize  resource  values to achieve better
              performance if  the  operating  system  prefers  larger  buffer
              sizes.
      maximized (class Maximized)
              Specifies whether or not xterm should ask the window manager to
              maximize its layout on startup.  The default is "false".
      messages (class Messages)
              Specifies whether write access to the terminal is allowed  ini-
              tially.  See mesg(1).  The default is "true".
      menuLocale (class MenuLocale)
               Specify  the  locale  used for character-set computations when
               loading the popup menus.  Use this to  improve  initialization
               performance of the Athena popup menus, which may load unneces-
               sary (and very large) fonts, e.g., in a  locale  having  UTF-8
               encoding.  The default is "C" (POSIX).
               To  use  the current locale (only useful if you have localized
               the resource settings for the menu entries), set the  resource
               to an empty string.
      minBufSize (class MinBufSize)
              Specify  the minimum size of the input buffer, i.e., the amount
              of data that xterm requests  on  each  read.   The  default  is
              "4096".  You cannot set this to a value less than 64.
      omitTranslation (class OmitTranslation)
              Selectively  omit one or more parts of xterm's default transla-
              tions at startup.  The resource value is a comma-separated list
              of  keywords,  which may be abbreviated: "fullscreen", "scroll-
              lock", "shift-fonts" or "wheel-mouse".  Xterm  also  recognizes
              "default",  but  omitting  that  will make the program unusable
              unless you provide a similar definition in your  resource  set-
              tings.
      ptyHandshake (class PtyHandshake)
              If "true", xterm will perform handshaking during initialization
              to ensure that the parent and child processes update  the  utmp
              and stty state.
              See  also  waitForMap  which  waits  for  the pseudo-terminal's
              notion of the screen size, and  ptySttySize  which  resets  the
              screen  size  after  other terminal initialization is complete.
              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.
              See  also  the  ttyModes  resource, which may modify this.  The
              default is "false".
      ptySttySize (class PtySttySize)
              If "true", xterm will reset the screen size after terminal ini-
              tialization is complete.  This is needed for some systems whose
              pseudo-terminals  cannot  propagate  terminal  characteristics.
              Where it is not needed, it can interfere with other methods for
              setting the intial screen size, e.g., via window manager inter-
              action.
              See  also waitForMap which waits for a handshake-message giving
              the pseudo-terminal's notion of the screen size.   The  default
              is "false" on Linux and OS X systems, "true" otherwise.
      sameName (class SameName)
              If  the  value  of this resource is "true", xterm does not send
              title and icon name change requests when the request would have
              no  effect: the name is not 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".
      scaleHeight (class ScaleHeight)
              Scale  line-height  values by the resource value, which is lim-
              ited to "0.9" to "1.5".  The default value is "1.0",
              While this resource applies to either bitmap or TrueType fonts,
              its main purpose is to help work around incompatible changes in
              the Xft library's font metrics.  Xterm checks the font  metrics
              to find what the library claims are the bounding boxes for each
              glyph (character).  However, some of Xft's  features  (such  as
              the  autohinter)  can cause the glyphs to be scaled larger than
              the bounding boxes, and be partly overwritten by the next  row.
              See useClipping for a related resource.
      scoFunctionKeys (class ScoFunctionKeys)
              Specifies  whether  or not SCO Function Key escape codes should
              be generated for  function  keys  instead  of  standard  escape
              sequences.
              See also the keyboardType resource.
      sessionMgt (class SessionMgt)
              If  the value of this resource is "true", xterm sets up session
              manager callbacks for XtNdieCallback and XtNsaveCallback.   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.
              See also the keyboardType resource.
      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 sunKey-
              board set to "false"), xterm uses  PC-style  bindings  for  the
              function keys and keypad.
              PC-style  bindings use the Shift, Alt, Control and Meta keys as
              modifiers for function-keys and keypad (see the document  Xterm
              Control  Sequences  for  details).   The  PC-style bindings are
              analogous to PCTerm, but not the same  thing.   Normally  these
              bindings  do  not  conflict  with  the  use  of the Meta key as
              described for the eightBitInput resource.   If  they  do,  note
              that the PC-style bindings are evaluated first.
              See also the keyboardType resource.
      tcapFunctionKeys (class TcapFunctionKeys)
              Specifies  whether  or  not function key escape codes read from
              the termcap/terminfo entry should  be  generated  for  function
              keys  instead  of  standard  escape  sequences.  The default is
              "false", i.e., this feature is disabled.
              See also the keyboardType resource.
      termName (class TermName)
              Specifies the terminal type name to be set in the TERM environ-
              ment variable.
      title (class Title)
              Specifies  a string that may be used by the window manager when
              displaying this application.
      toolBar (class ToolBar)
              Specifies whether or not the toolbar should be displayed.   The
              default is "true".
      ttyModes (class TtyModes)
              Specifies a string containing terminal setting keywords and the
              characters to which they  may  be  bound.   Allowable  keywords
              include:  brk,  dsusp,  eof,  eol,  eol2, erase, erase2, flush,
              intr, kill, lnext, quit,  rprnt,  start,  status,  stop,  susp,
              swtch  and weras.  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 lit-
              eral backslash in an X resource escapes the next character.
              This is very useful for overriding the  default  terminal  set-
              tings  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 built-in.
              If  the  ttyModes  resource  specifies  a value for erase, that
              overrides the ptyInitialErase  resource  setting,  i.e.,  xterm
              initializes the terminal to match that value.
      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".
      utmpDisplayId (class UtmpDisplayId)
              Specifies whether or not xterm should try to record the display
              identifier (display number and screen number) as  well  as  the
              hostname in the system utmp log file.  The default is "true".
      utmpInhibit (class UtmpInhibit)
              Specifies  whether or not xterm should try to record the user's
              terminal in the system utmp log file.  If true, xterm will  not
              try.  The default is "false".
      waitForMap (class WaitForMap)
              Specifies whether or not xterm should wait for the initial win-
              dow map before starting the subprocess.  This is  part  of  the
              ptyHandshake  logic.   When  xterm  is directed to wait in this
              fashion, it passes the terminal size from the  display  end  of
              the  pseudo-terminal  to  the  terminal  I/O  connection, e.g.,
              according to the window manager.  Otherwise, it uses  the  size
              as  given in resource values or command-line option -geom.  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 iconi-
              fied 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
              default is "false".
      zIconTitleFormat (class ZIconTitleFormat)
              Allow customization of the string used in  the  zIconBeep  fea-
              ture.  The default value is "*** %s".
              If  the  resource value contains a "%s", then xterm inserts the
              icon title at that point rather than prepending the  string  to
              the icon title.  (Only the first "%s" is used).
  VT100 Widget Resources
      The  following  resources  are  specified  as  part of the vt100 widget
      (class   VT100).    They   are   specified   by   patterns   such    as
      "XTerm.vt100.NAME".
      If  your  xterm is configured to support the "toolbar", then those pat-
      terns need an extra level for the form-widget which holds  the  toolbar
      and  vt100  widget.   A  wildcard between the top-level "XTerm" and the
      "vt100" widget makes the  resource  settings  work  for  either,  e.g.,
      "XTerm*vt100.NAME".
      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 applica-
              tion icon windows.  Some window  managers  will  allow  you  to
              enter  keystrokes  into the active icon window.  The default is
              "false".
      allowBoldFonts (class AllowBoldFonts)
              When set to "false", xterm will not use bold fonts.  This over-
              rides  both  the  alwaysBoldMode  and  the  boldMode resources.
              alwaysBoldMode (class AlwaysBoldMode)
      allowC1Printable (class AllowC1Printable)
              If true, overrides the mapping of C1 controls  (codes  128-159)
              to  make  them be treated as if they were printable characters.
              Although this corresponds to no particular standard, some users
              insist it is a VT100.  The default is "false".
      allowColorOps (class AllowColorOps)
              Specifies  whether control sequences that set/query the dynamic
              colors should be allowed.  ANSI colors are unaffected  by  this
              resource setting.  The default is "true".
      allowFontOps (class AllowFontOps)
              Specifies  whether  control  sequences  that set/query the font
              should be allowed.  The default is "true".
      allowScrollLock (class AllowScrollLock)
              Specifies whether control sequences that set/query  the  Scroll
              Lock  key should be allowed, as well as whether the Scroll Lock
              key responds to user's keypress.  The default is "false".
              When this feature is enabled, xterm will sense the state of the
              Scroll  Lock  key  each  time  it acquires focus.  Pressing the
              Scroll Lock key toggles xterm's internal state, as well as tog-
              gling  the  associated  LED.   While the Scroll Lock is active,
              xterm attempts to keep a viewport on the same set of lines.  If
              the  current  viewport  is  scrolled  past the limit set by the
              saveLines resource, then Scroll Lock has no further effect.
              The reason for setting the default to "false" is to avoid  user
              surprise.   This key is generally unused in keyboard configura-
              tions, and has not acquired a standard meaning even when it  is
              used  in that manner.  Consequently, users have assigned it for
              ad hoc purposes.
      allowSendEvents (class AllowSendEvents)
              Specifies whether or not synthetic key and button events  (gen-
              erated using the X protocol SendEvent request) should be inter-
              preted or discarded.  The default is "false" meaning  they  are
              discarded.   Note that allowing such events would create a very
              large security hole, therefore enabling  this  resource  force-
              fully  disables  the  allowXXXOps  resources.   The  default is
              "false".
      allowTcapOps (class AllowTcapOps)
              Specifies whether control sequences that query  the  terminal's
              notion  of  its  function-key  strings,  as termcap or terminfo
              capabilities should be allowed.  The default is "false".
              A few programs, e.g., vim, use this feature to get an  accurate
              description  of the terminal's capabilities, independent of the
              termcap/terminfo setting:
              o   xterm can tell the querying program how many colors it sup-
                  ports.   This  is  a  constant, depending on how it is com-
                  piled, typically 16.  It  does  not  change  if  you  alter
                  resource settings, e.g., the boldColors resource.
              o   xterm  can  tell the querying program what strings are sent
                  by modified (shift-, control-, alt-) function- and  keypad-
                  keys.   Reporting  control-  and alt-modifiers is a feature
                  that relies on the ncurses extended naming.
      allowTitleOps (class AllowTitleOps)
              Specifies whether control  sequences  that  modify  the  window
              title or icon name should be allowed.  The default is "true".
      allowWindowOps (class AllowWindowOps)
              Specifies whether extended window control sequences (as used in
              dtterm) should  be  allowed.   These  include  several  control
              sequences which manipulate the window size or position, as well
              as reporting these values and the title or icon name.  Each  of
              these can be abused in a script; curiously enough most terminal
              emulators that implement these restrict only a  small  part  of
              the repertoire.  For fine-tuning, see disallowedWindowOps.  The
              default is "false".
      altIsNotMeta (class AltIsNotMeta)
              If "true", treat the Alt-key as if it were the Meta-key.   Your
              keyboard may happen to be configured so they are the same.  But
              if they are not, this allows you to use the  same  prefix-  and
              shifting operations with the Alt-key as with the Meta-key.  See
              altSendsEscape and metaSendsEscape.  The default is "false".
      altSendsEscape (class AltSendsEscape)
              This is an additional keyboard operation that may be  processed
              after  the  logic for metaSendsEscape.  It is only available if
              the altIsNotMeta resource is set.
              o   If "true", Alt characters (a character  combined  with  the
                  modifier associated with left/right Alt-keys) are converted
                  into a two-character sequence  with  the  character  itself
                  preceded by ESC.  This applies as well to function key con-
                  trol sequences, unless xterm sees that Alt is used in  your
                  key translations.
              o   If  "false", Alt characters input from the keyboard cause a
                  shift to 8-bit characters (just like metaSendsEscape).   By
                  combining  the Alt- and Meta-modifiers, you can create cor-
                  responding combinations of ESC-prefix and 8-bit characters.
                  The default is "false".
              Xterm provides a menu option for toggling this resource.
      alwaysBoldMode (class AlwaysBoldMode)
              Specifies  whether  xterm  should  check if the normal and bold
              fonts are distinct before deciding whether to use  overstriking
              to  simulate  bold fonts.  If this resource is true, xterm does
              not make the check for distinct fonts when deciding how to han-
              dle the boldMode resource.  The default is "false".
              boldMode   alwaysBoldMode   Comparison   Action
              ----------------------------------------------------
              false      false            ignored      use font
              false      true             ignored      use font
              true       false            same         overstrike
              true       false            different    use font
              true       true             ignored      overstrike
              As an alternative, setting the allowBoldFonts resource to false
              overrides both the alwaysBoldMode and the boldMode resources.
      alwaysHighlight (class AlwaysHighlight)
              Specifies whether or not xterm should always  display  a  high-
              lighted text cursor.  By default (if this resource is false), a
              hollow text cursor is displayed whenever the pointer moves  out
              of the window or the window loses the input focus.  The default
              is "false".
      alwaysUseMods (class AlwaysUseMods)
              Override the numLock resource, telling xterm to use the Alt and
              Meta   modifiers  to  construct  parameters  for  function  key
              sequences even if those modifiers appear  in  the  translations
              resource.   Normally  xterm  checks if Alt or Meta is used in a
              translation that would conflict with  function  key  modifiers,
              and  will  ignore  these  modifiers  in that special case.  The
              default is "false".
      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.
      appcursorDefault (class AppcursorDefault)
              If  "true",  the cursor keys are initially in application mode.
              This is the same as the VT102 private DECCKM 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.
              This is the same as the VT102 DECAWM.  The default is "true".
      awaitInput (class AwaitInput)
              Specifies  whether or not the xterm uses a 50 millisecond time-
              out to await input (i.e., to support the  Xaw3d  arrow  scroll-
              bar).  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 con-
              trol  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 "XtDefaultBackground".
      bellIsUrgent (class BellIsUrgent)
              Specifies  whether  to set the Urgency hint for the window man-
              ager when making a bell sound.  The default is "false".
      bellOnReset (class BellOnReset)
              Specifies whether to sound a bell when doing a hard reset.  The
              default is "true".
      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  over-
              striking.  There is no default for this resource.
              This font must be the same height and width as the normal font,
              otherwise it is ignored.  If only one of  the  normal  or  bold
              fonts  is specified, it will be used as the normal font and the
              bold font will be produced by overstriking this font.
              See  also  the  discussion  of  boldMode   and   alwaysBoldMode
              resources.
      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.
              Note that xterm has one bold font which you may set explicitly.
              Xterm attempts to derive a bold font for the other font  selec-
              tions (font1 through font6).  If it cannot find a bold font, it
              will use the normal font.  In each case (whether  the  explicit
              resource or the derived font), if the normal and bold fonts are
              distinct, this resource has no effect.  The default is  "true".
              See  the  alwaysBoldMode resource which can modify the behavior
              of this resource.
              Although xterm attempts to derive a bold font  for  other  font
              selections,  the  font  server may not cooperate.  Since X11R6,
              bitmap fonts have been scaled.  The font server claims to  pro-
              vide  the  bold font that xterm requests, but the result is not
              always readable.  XFree86 introduced a  feature  which  can  be
              used  to suppress the scaling.  In the X server's configuration
              file (e.g., "/etc/X11/XFree86"), you can add ":unscaled" to the
              end  of the directory specification for the "misc" fonts, which
              comprise the fixed-pitch fonts that are  used  by  xterm.   For
              example
                  FontPath                 "/usr/lib/X11/fonts/misc/"
              would become
                  FontPath                 "/usr/lib/X11/fonts/misc/:unscaled"
              Depending  on  your configuration, the font server may have its
              own configuration file.  The same ":unscaled" can be  added  to
              its  configuration  file at the end of the directory specifica-
              tion for "misc".
              The bitmap scaling feature is also used by xterm  to  implement
              VT102 double-width and double-height characters.
      brokenLinuxOSC (class BrokenLinuxOSC)
              If true, xterm applies a workaround to ignore malformed control
              sequences that a Linux script might send.  Compare the  palette
              control  sequences  documented  in  console_codes with ECMA-48.
              The default is "true".
      brokenSelections (class BrokenSelections)
              If true, xterm in 8-bit mode will interpret  STRING  selections
              as  carrying  text  in the current locale's encoding.  Normally
              STRING selections carry ISO-8859-1 encoded text.  Setting  this
              resource to "true" violates the ICCCM; it may, however, be use-
              ful for interacting with some broken X clients.  The default is
              "false".
      brokenStringTerm (class BrokenStringTerm)
              provides  a  work-around  for  some ISDN routers which start an
              application control string without completing it.  Set this  to
              "true" if xterm appears to freeze when connecting.  The default
              is "false".
              Xterm's  state  parser  recognizes  several  types  of  control
              strings which can contain text, e.g.,
              APC (Application Program Command),
              DCS (Device Control String),
              OSC (Operating System Command),
              PM (Privacy Message), and
              SOS (Start of String),
              Each  should  end with a string-terminator (a special character
              which cannot appear in these strings).  Ordinary control  char-
              acters  found  within the string are not ignored; they are pro-
              cessed without interfering with the process of accumulating the
              control  string's  content.  Xterm recognizes these controls in
              all modes, although some of the  functions  may  be  suppressed
              after parsing the control.
              When  enabled,  this  feature  allows  the user to exit from an
              unterminated control string when any of these ordinary  control
              characters are found:
              control/D (used as an end of file in many shells),
              control/H (backspace),
              control/I (tab-feed),
              control/J (line feed aka newline),
              control/K (vertical tab),
              control/L (form feed),
              control/M (carriage return),
              control/N (shift-out),
              control/O (shift-in),
              control/Q (XOFF),
              control/X (cancel)
      c132 (class C132)
              Specifies  whether  or  not  the VT102 DECCOLM escape sequence,
              used to switch between 80 and 132 columns, should  be  honored.
              The default is "false".
      cacheDoublesize (class CacheDoublesize)
              Tells  whether  to cache double-sized fonts by xterm.  Set this
              to zero to disable double-sized 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 CHARACTER CLASSES section.
      cjkWidth (class CjkWidth)
              Specifies  whether  xterm  should  follow  the traditional East
              Asian width convention.  When turned on, characters  with  East
              Asian  Ambiguous  (A) category in UTR 11 have a column width of
              2.  You may have to set this option to "true" if you have  some
              old  East  Asian terminal based programs that assume that line-
              drawing characters have a column width of 2.  If this  resource
              is  false, the mkWidth resource controls the choice between the
              system's wcwidth and xterm's built-in tables.  The  default  is
              "false".
      color0 (class Color0)
      color1 (class Color1)
      color2 (class Color2)
      color3 (class Color3)
      color4 (class Color4)
      color5 (class Color5)
      color6 (class Color6)
      color7 (class Color7)
              These  specify  the  colors  for  the  ISO-6429 extension.  The
              defaults are, respectively, black,  red3,  green3,  yellow3,  a
              customizable  dark  blue,  magenta3,  cyan3,  and  gray90.  The
              default shades of color are chosen to allow the colors 8-15  to
              be used as brighter versions.
      color8 (class Color8)
      color9 (class Color9)
      color10 (class Color10)
      color11 (class Color11)
      color12 (class Color12)
      color13 (class Color13)
      color14 (class Color14)
      color15 (class Color15)
              These specify the colors for the ISO-6429 extension if the bold
              attribute is also enabled.  The  default  resource  values  are
              respectively,  gray30, red, green, yellow, a customizable light
              blue, magenta, cyan, and white.
      color16 (class Color16)
      through
      color255 (class Color255)
              These specify the colors  for  the  256-color  extension.   The
              default resource values are for colors 16 through 231 to make a
              6x6x6 color  cube,  and  colors  232  through  255  to  make  a
              grayscale ramp.
              Resources  past color15 are available as a compile-time option.
              Due to a hardcoded limit in the X libraries on the total number
              of resources (to 400), the resources for 256-colors are omitted
              when wide-character support  and  luit  are  enabled.   Besides
              inconsistent  behavior  if  only  part  of  the  resources were
              allowed, determining the exact cutoff is difficult, and  the  X
              libraries  tend to crash if the number of resources exceeds the
              limit.  The color palette is  still  initialized  to  the  same
              default values, and can be modified via control sequences.
              On the other hand, the resource limit does permit including the
              entire range for 88-colors.
      colorAttrMode (class ColorAttrMode)
              Specifies whether colorBD, colorBL, colorRV, and colorUL 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".
      colorBD (class ColorBD)
              This  specifies  the color to use to display bold characters if
              the "colorBDMode" resource is enabled.  The default  is  "XtDe-
              faultForeground".
      colorBDMode (class ColorAttrMode)
              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.  The default
              is "false".
      colorBL (class ColorBL)
              This specifies the color to use to display blink characters  if
              the  "colorBLMode"  resource is enabled.  The default is "XtDe-
              faultForeground".
      colorBLMode (class ColorAttrMode)
              Specifies whether characters with the blink attribute should be
              displayed  in  color.  Note that setting colorMode off disables
              all colors, including this.  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".
      colorRV (class ColorRV)
              This specifies the color to use to display  reverse  characters
              if  the  "colorRVMode"  resource  is  enabled.   The default is
              "XtDefaultForeground".
      colorRVMode (class ColorAttrMode)
              Specifies whether characters with the reverse attribute  should
              be  displayed  in  color.  Note that setting colorMode off dis-
              ables all colors, including this.  The default is "false".
      colorUL (class ColorUL)
              This specifies the color to use to display  underlined  charac-
              ters  if the "colorULMode" resource is enabled.  The default is
              "XtDefaultForeground".
      colorULMode (class ColorAttrMode)
              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.  The default is "false".
      combiningChars (class CombiningChars)
              Specifies  the number of wide-characters which can be stored in
              a cell to overstrike (combine) with the base character  of  the
              cell.   This  can  be  set  to values in the range 0 to 4.  The
              default is "2".
      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.
      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".
      cursorBlink (class CursorBlink)
              Specifies whether to make the cursor  blink.   The  default  is
              "false".
              Xterm  uses  two  variables  to  determine  whether  the cursor
              blinks.  One is set by this resource.  The other is set by con-
              trol sequences (private mode 12 and DECSCUSR).  Xterm tests the
              XOR of the two variables.
      cursorColor (class CursorColor)
              Specifies the color to use for the text cursor.  The default is
              "XtDefaultForeground".  By default, xterm attempts to keep this
              color from being the same as the  background  color,  since  it
              draws the cursor by filling the background of a text cell.  The
              same restriction applies to control sequences which may  change
              this color.
              Setting  this resource overrides most of xterm's adjustments to
              cursor color.  It will still use reverse-video to disallow some
              cases, such as a black cursor on a black background.
      cursorOffTime (class CursorOffTime)
              Specifies  the  duration  of the "off" part of the cursor blink
              cycle-time in milliseconds.  The same timer is  used  for  text
              blinking.  The default is "300".
      cursorOnTime (class CursorOnTime)
              Specifies  the  duration  of  the "on" part of the cursor blink
              cycle-time, in milliseconds.  The same timer is used  for  text
              blinking.  The default is "600".
      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".
      cursorUnderLine (class CursorUnderLine)
              Specifies  whether to make the cursor underlined or a box.  The
              default is "false".
      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".
      decTerminalID (class DecTerminalID)
              Specifies the emulation  level  (100=VT100,  220=VT220,  etc.),
              used  to  determine  the  type  of  response  to  a  DA control
              sequence.  Leading  non-digit  characters  are  ignored,  e.g.,
              "vt100" and "100" are the same.  The default is "100".
      defaultString (class DefaultString)
              Specify  the  character (or string) which xterm will substitute
              when pasted text includes a character which  cannot  be  repre-
              sented  in  the  current encoding.  For instance, pasting UTF-8
              text into a display of ISO-8859-1 characters will only be  able
              to  display  codes  0-255, while UTF-8 text can include Unicode
              values above 255.  The default is "#" (a single pound sign).
              If the undisplayable text would be double-width, xterm will add
              a  space after the "#" character, to give roughly the same lay-
              out on the screen as the original text.
      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.
      disallowedColorOps (class DisallowedColorOps)
              Specify which features will be  disabled  if  allowColorOps  is
              false.   This  is a comma-separated list of names.  The default
              value is
              SetColor,GetColor,GetAnsiColor
              The names are listed below.  xterm ignores capitalization,  but
              they are shown in mixed-case for clarity.
              SetColor
                   Set a specific dynamic color.
              GetColor
                   Report the current setting of a given dynamic color.
              GetAnsiColor
                   Report the current setting of a given ANSI color (actually
                   any of the colors set via ANSI-style controls).
      disallowedFontOps (class DisallowedFontOps)
              Specify which features will  be  disabled  if  allowFontOps  is
              false.   This  is a comma-separated list of names.  The default
              value is
              SetFont,GetFont
              The names are listed below.  xterm ignores capitalization,  but
              they are shown in mixed-case for clarity.
              SetFont
                   Set the specified font.
              GetFont
                   Report the specified font.
      disallowedTcapOps (class DisallowedTcapOps)
              Specify  which  features  will  be  disabled if allowTcapOps is
              false.  This is a comma-separated list of names.   The  default
              value is
              SetTcap,GetTcap
              The  names are listed below.  xterm ignores capitalization, but
              they are shown in mixed-case for clarity.
              SetTcap
                   (not implemented)
              GetTcap
                   Report specified function- and other special keys.
      disallowedWindowOps (class DisallowedWindowOps)
              Specify which features will be disabled  if  allowWindowOps  is
              false.   This  is  a comma-separated list of names, or (for the
              controls  adapted  from  dtterm  the  operation  number).   The
              default value is
              20,21,SetXprop,SetSelection
              The  names are listed below.  xterm ignores capitalization, but
              they are shown in mixed-case for clarity.  Where a  number  can
              be used as an alternative, it is given in parentheses after the
              name.
              GetIconTitle (20)
                   Report xterm window's icon label as a string.
              GetScreenSizeChars (19)
                   Report the size of the screen in characters as numbers.
              GetSelection
                   Report selection data as a base64 string.
              GetWinPosition (13)
                   Report xterm window position as numbers.
              GetWinSizeChars (18)
                   Report the size of the text area in characters as numbers.
              GetWinSizePixels (14)
                   Report xterm window in pixels as numbers.
              GetWinState (11)
                   Report xterm window state as a number.
              GetWinTitle (21)
                   Report xterm window's title as a string.
              LowerWin (6)
                   Lower  the  xterm  window  to  the  bottom of the stacking
                   order.
              MaximizeWin (9)
                   Maximize window (i.e., resize to screen size).
              FullscreenWin (10)
                   Use full screen (i.e., resize to screen size, without win-
                   dow decorations).
              MinimizeWin (2)
                   Iconify window.
              PopTitle (23)
                   Pop title from internal stack.
              PushTitle (22)
                   Push title to internal stack.
              RaiseWin (5)
                   Raise the xterm window to the front of the stacking order.
              RefreshWin (7)
                   Refresh the xterm window.
              RestoreWin (1)
                   De-iconify window.
              SetSelection
                   Set selection data.
              SetWinLines
                   Resize to a given number of lines, at least 24.
              SetWinPosition (3)
                   Move window to given coordinates.
              SetWinSizeChars (8)
                   Resize the text area to given size in characters.
              SetWinSizePixels (4)
                   Resize the xterm window to given size in pixels.
              SetXprop
                   Set X property on top-level window.
      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 (a single-byte character combined
              with the Meta modifier key) input from the  keyboard  are  pre-
              sented  as a single character, modified according to the eight-
              BitMeta resource.  If "false", Meta  characters  are  converted
              into  a  two-character  sequence with the character itself pre-
              ceded by ESC.  The default is "true".
              The metaSendsEscape and altSendsEscape resources  may  override
              this  feature.   Generally  keyboards do not have a key labeled
              "Meta", but "Alt" keys are common, and they are  conventionally
              used  for  "Meta".  If they were synonymous, it would have been
              reasonable to name this  resource  "altSendsEscape",  reversing
              its  sense.  For more background on this, see the meta function
              in curses.
              Note that the Alt key is not necessarily the same as  the  Meta
              modifier.   xmodmap  lists your key modifiers.  X defines modi-
              fiers for shift, (caps) lock and control, as well  as  5  addi-
              tional modifiers which are generally used to configure key mod-
              ifiers.  xterm inspects the same information to find the  modi-
              fier  associated with either Meta key (left or right), and uses
              that key as the Meta modifier.  It also looks for  the  NumLock
              key, to recognize the modifier which is associated with that.
              If  your  xmodmap configuration uses the same keycodes for Alt-
              and Meta-keys, xterm will only  see  the  Alt-key  definitions,
              since  those  are  tested  before Meta-keys.  NumLock is tested
              first.  It is important to keep these keys distinct;  otherwise
              some of xterm's functionality is not available.
              The  eightBitInput  resource  is  tested  at  startup time.  If
              "true", the xterm tries to put the terminal  into  8-bit  mode.
              If  "false",  on  startup, xterm tries to put the terminal into
              7-bit mode.  For  some  configurations  this  is  unsuccessful;
              failure  is  ignored.  After startup, xterm does not change the
              terminal between 8-bit and 7-bit mode.
              As originally implemented in X11, the resource  value  did  not
              change after startup.  However (since patch #216 in 2006) xterm
              can modify eightBitInput after startup via a control  sequence.
              The corresponding terminfo capabilities smm (set meta mode) and
              rmm (reset meta mode) have been recognized  by  bash  for  some
              time.   Interestingly enough, bash's notion of "meta mode" dif-
              fers from the standard definition  (in  the  terminfo  manual),
              which  describes  the  change to the eighth bit of a character.
              It happens that bash views "meta mode"  as  the  ESC  character
              that  xterm  puts before a character when a special meta key is
              pressed.  bash's early documentation talks about the ESC  char-
              acter and ignores the eighth bit.
      eightBitMeta (class EightBitMeta)
              This  controls  the way xterm modifies the eighth bit of a sin-
              gle-byte key when  the  eightBitInput  resource  is  set.   The
              default is "locale".
              The  resource  value  is a string, evaluated as a boolean after
              startup.
              false
                   The key is sent unmodified.
              locale
                   The key is modified only  if  the  locale  uses  eight-bit
                   encoding.
              true The key is sent modified.
              never
                   The key is always sent unmodified.
              Except for the never choice, xterm honors the terminfo capabil-
              ities smm (set meta mode) and rmm (reset meta  mode),  allowing
              the feature to be turned on or off dynamically.
              If  eightBitMeta  is  enabled when the locale uses UTF-8, xterm
              encodes the value as UTF-8 (since patch #183 in 2003).
      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.
      eightBitSelectTypes (class EightBitSelectTypes)
              Override   xterm's   default   selection   target   list   (see
              SELECT/PASTE)  for selections in normal (ISO-8859-1) mode.  The
              default is an empty string, i.e., "", which does  not  override
              anything.
      faceName (class FaceName)
              Specify  the  pattern  for  scalable  fonts  selected  from the
              FreeType library if support for that library was compiled  into
              xterm.  There is no default value.
              If  not  specified, or if there is no match for both normal and
              bold fonts, xterm uses the bitmap font and related resources.
              It is possible to select suitable bitmap fonts using  a  script
              such as this:
                  #!/bin/sh
                  FONT=`xfontsel -print`
                  test -n "$FONT" && xfd -fn "$FONT"
              However  (even  though  xfd  accepts  a  "-fa" option to denote
              FreeType fonts), xfontsel has not been similarly extended.   As
              a workaround, you may try
                  fc-list :scalable=true:spacing=mono: family
              to  find a list of scalable fixed-pitch fonts which may be used
              for the faceName resource value.
      faceNameDoublesize (class FaceNameDoublesize)
              Specify a double-width scalable font for cases where an  appli-
              cation  requires  this, e.g., in CJK applications.  There is no
              default value.
              If  the  application  uses  double-wide  characters  and   this
              resource  is  not given, xterm will use a scaled version of the
              font given by faceName.
      faceSize (class FaceSize)
              Specify the pointsize for  fonts  selected  from  the  FreeType
              library  if  support  for that library was compiled into xterm.
              The default is "14.0" On the VT Fonts menu, this corresponds to
              the Default entry.
              Although the default is "14.0", this may not be the same as the
              pointsize for the default bitmap font, i.e., that assigned with
              the -fn option, or the font resource.  For example, the "fixed"
              font usually has a pointsize of "8.0".  If you set faceSize  to
              match  the size of the bitmap font, then switching between bit-
              map and TrueType fonts via the font menu will  give  comparable
              sizes for the window.
              You  can specify the pointsize for TrueType fonts selected with
              the other size-related menu entries such as Medium, Huge, etc.,
              by  using  one of the following resource values.  If you do not
              specify a value, they default to "0.0", which causes  xterm  to
              use  the ratio of font sizes from the corresponding bitmap font
              resources to obtain a TrueType pointsize.
              If all of the faceSize resources are set, then xterm  will  use
              this  information to determine the next smaller/larger TrueType
              font for the larger-vt-font()  and  smaller-vt-font()  actions.
              If any are not set, xterm will use only the areas of the bitmap
              fonts.
      faceSize1 (class FaceSize1)
              Specifies the pointsize of the first alternative font.
      faceSize2 (class FaceSize2)
              Specifies the pointsize of the second alternative font.
      faceSize3 (class FaceSize3)
              Specifies the pointsize of the third alternative font.
      faceSize4 (class FaceSize4)
              Specifies the pointsize of the fourth alternative font.
      faceSize5 (class FaceSize5)
              Specifies the pointsize of the fifth alternative font.
      faceSize6 (class FaceSize6)
              Specifies the pointsize of the sixth alternative font.
      font (class Font)
              Specifies the name of the normal font.  The default is "fixed".
              See  the discussion of the locale resource, which describes how
              this font may be overridden.
              NOTE: some resource files use patterns such as
                  *font: fixed
              which are overly broad, affecting both
                  xterm.vt100.font
              and
                  xterm.vt100.utf8Fonts.font
              which is probably not what you intended.
      fastScroll (class FastScroll)
              Modifies the effect of jump scroll (jumpScroll) by  suppressing
              screen refreshes for the special case when output to the screen
              has completely shifted the contents off-screen.  For  instance,
              cat'ing a large file to the screen does this.
      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 double-sized characters.  Some older font  servers  cannot
              do  this  properly,  will  return misleading font metrics.  The
              default is "true".  If disabled, xterm  will  simulate  double-
              sized  characters  by  drawing  normal  characters  with spaces
              between them.
      fontWarnings (class FontWarnings)
              Specify whether xterm should report an error  if  it  fails  to
              load a font:
              0    Never report an error (though the X libraries may).
              1    Report  an  error if the font name was given as a resource
                   setting.
              2    Always report an error on failure to load a font.
              The default is "1".
      forceBoxChars (class ForceBoxChars)
              Specifies whether xterm should assume the normal and bold fonts
              have VT100 line-drawing characters:
              o   The fixed-pitch ISO-8859-*-encoded fonts used by xterm nor-
                  mally have the VT100 line-drawing  glyphs  in  cells  1-31.
                  Other  fixed-pitch  fonts  may be more attractive, but lack
                  these glyphs.
              o   When using an ISO-10646-1 font and the  wideChars  resource
                  is  true,  xterm  uses  the  Unicode glyphs which match the
                  VT100 line-drawing glyphs.
              If "false", xterm checks for missing glyphs  in  the  font  and
              makes  line-drawing  characters directly as needed.  If "true",
              xterm assumes the font does not contain the line-drawing  char-
              acters, and draws them directly.  The default is "false".
      forcePackedFont (class ForcePackedFont)
              Specifies whether xterm should use the maximum or minimum glyph
              width when displaying using a bitmap  font.   Use  the  maximum
              width  to help with proportional fonts.  The default is "true",
              denoting the minimum width.
      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 "XtDefaultForeground".
      formatOtherKeys (class FormatOtherKeys)
              Overrides the format of the escape sequence used to report mod-
              ified keys with the modifyOtherKeys resource.
              0  send  modified  keys  as  parameters  for  function-key   27
                 (default).
              1  send modified keys as parameters for CSI u.
      freeBoldBox (class FreeBoldBox)
              Specifies  whether  xterm  should assume the bounding boxes for
              normal and bold fonts are compatible.  If "false",  xterm  com-
              pares  them  and  will reject choices of bold fonts that do not
              match the size of the normal font.   The  default  is  "false",
              which means that the comparison is performed.
      geometry (class Geometry)
              Specifies  the preferred size and position of the VT102 window.
              There is no default for this resource.
      highlightColor (class HighlightColor)
              Specifies the color to  use  for  the  background  of  selected
              (highlighted)  text.   If  not  specified  (i.e.,  matching the
              default foreground), reverse video is  used.   The  default  is
              "XtDefaultForeground".
      highlightColorMode (class HighlightColorMode)
              Specifies whether xterm should use highlightTextColor and high-
              lightColor to override the reversed foreground/background  col-
              ors  in  a  selection.  The default is unspecified: at startup,
              xterm checks if those resources are set to something other than
              the  default  foreground  and  background colors.  Setting this
              resource disables the check.
              The following table shows the interaction of  the  highlighting
              resources, abbreviated as shown to fit in this page:
              HCM
                 highlightColorMode
              HR highlightReverse
              HBG
                 highlightColor
              HFG
                 highlightTextColor


              HCM       HR      HBG       HFG       Highlight
              ------------------------------------------------------
              false     false   default   default   bg/fg
              false     false   default   set       bg/fg
              false     false   set       default   fg/HBG
              false     false   set       set       fg/HBG
              ------------------------------------------------------
              false     true    default   default   bg/fg
              false     true    default   set       bg/fg
              false     true    set       default   fg/HBG
              false     true    set       set       fg/HBG
              ------------------------------------------------------
              true      false   default   default   bg/fg
              true      false   default   set       HFG/fg
              true      false   set       default   bg/HBG
              true      false   set       set       HFG/HBG
              ------------------------------------------------------
              true      true    default   default   fg/fg (useless)
              true      true    default   set       HFG/fg
              true      true    set       default   fg/HBG
              true      true    set       set       HFG/HBG
              ------------------------------------------------------
              default   false   default   default   bg/fg
              default   false   default   set       bg/fg
              default   false   set       default   fg/HBG
              default   false   set       set       HFG/HBG
              ------------------------------------------------------
              default   true    default   default   bg/fg
              default   true    default   set       bg/fg
              default   true    set       default   fg/HBG
              default   true    set       set       HFG/HBG
              ------------------------------------------------------
      highlightReverse (class HighlightReverse)
              Specifies whether xterm should reverse the selection foreground
              and background colors when selecting  text  with  reverse-video
              attribute.   This  applies only to the highlightColor and high-
              lightTextColor resources, e.g., to match the  color  scheme  of
              xwsh.   If "true", xterm reverses the colors, If "false", xterm
              does not reverse colors, The default is "true".
      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  posi-
              tions  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.
      highlightTextColor (class HighlightTextColor)
              Specifies the color to  use  for  the  foreground  of  selected
              (highlighted)  text.   If  not  specified  (i.e.,  matching the
              default background), reverse video is  used.   The  default  is
              "XtDefaultBackground".
      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".
      i18nSelections (class I18nSelections)
              If  false,  xterm will not request the targets COMPOUND_TEXT or
              TEXT.  The default is "true". It may be set to false  in  order
              to work around ICCCM violations by other X clients.
      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 "2".   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".
      initialFont (class InitialFont)
              Specifies which of the VT100 fonts to  use  initially.   Values
              are  the  same  as  for the set-vt-font action.  The default is
              "d", i.e., "default".
      inputMethod (class XtCInputMethod)
              Tells xterm which type of input method to  use.   There  is  no
              default method.
      internalBorder (class BorderWidth)
              Specifies  the  number of pixels between the characters and the
              window border.  The default is "2".
      italicULMode (class ColorAttrMode)
              Specifies  whether  characters  with  the  underline  attribute
              should  be displayed in an italic font or as underlined charac-
              ters.  It is implemented only for TrueType fonts.
      jumpScroll (class JumpScroll)
              Specifies whether or not jump scroll should be used.  This cor-
              responds  to  the  VT102  DECSCLM private mode.  The default is
              "true".  See fastScroll for a variation.
      keepSelection (class KeepSelection)
              Specifies whether xterm will keep the selection even after  the
              selected  area was touched by some output to the terminal.  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.
      nameKeymap (class NameKeymap)
              See the discussion of the keymap() action.
      limitResize (class LimitResize)
              Limits resizing of the screen via control sequence to  a  given
              multiple of the display dimensions.  The default is "1".
      locale (class Locale)
              Specifies  how to use luit, an encoding converter between UTF-8
              and locale encodings.  The resource value (ignoring  case)  may
              be:
              true
                  xterm  will  use  the  encoding  specified  by  the  users'
                  LC_CTYPE locale (i.e., LC_ALL, LC_CTYPE, or LANG variables)
                  as  far  as  possible.  This is realized by always enabling
                  UTF-8 mode and invoking luit in non-UTF-8 locales.
              medium
                  xterm will follow users' LC_CTYPE locale  only  for  UTF-8,
                  east  Asian, and Thai locales, where the encodings were not
                  supported by conventional 8bit mode  with  changing  fonts.
                  For other locales, xterm will use conventional 8bit mode.
              checkfont
                  If  mini-luit is compiled-in, xterm will check if a Unicode
                  font has been specified.  If so, it checks if the character
                  encoding  for  the  current  locale  is  POSIX,  Latin-1 or
                  Latin-9, uses the appropriate mapping to support those with
                  the  Unicode font.  For other encodings, xterm assumes that
                  UTF-8 encoding is required.
              false
                  xterm will use conventional 8bit mode or UTF-8 mode accord-
                  ing to utf8 resource or -u8 option.
              Any other value, e.g., "UTF-8" or "ISO8859-2", is assumed to be
              an encoding name; luit will be invoked to support the encoding.
              The  actual  list  of supported encodings depends on luit.  The
              default is "medium".
              Regardless of your locale and encoding, you need an ISO-10646-1
              font to display the result.  Your configuration may not include
              this font, or locale-support by xterm may not  be  needed.   At
              startup,  xterm  uses  a  mechanism  equivalent to the load-vt-
              fonts(utf8Fonts, Utf8Fonts) action to  load  font  name  subre-
              sources  of  the VT100 widget.  That is, resource patterns such
              as  "*vt100.utf8Fonts.font"  will  be  loaded,  and  (if   this
              resource  is enabled), override the normal fonts.  If no subre-
              sources are found, the  normal  fonts  such  as  "*vt100.font",
              etc.,  are used.  The resource files distributed with xterm use
              ISO-10646-1 fonts, but do not rely on them unless you are using
              the locale mechanism.
      localeFilter (class LocaleFilter)
              Specifies  the  file  name  for  the encoding converter from/to
              locale encodings and UTF-8 which is used with the -lc option or
              locale resource.  The help message shown by "xterm -help" lists
              the default value, which depends on your system  configuration.
              If the encoding converter requires command-line parameters, you
              can add those after the command, e.g.,
                  *localeFilter: xterm-filter -p
              Alternatively, you may  put  those  parameter  within  a  shell
              script to execute the converter, and set this resource to point
              to the shell script.
      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 rung when the user
              types near the right margin.  The default is "false".
      metaSendsEscape (class MetaSendsEscape)
              If "true", Meta characters (a character combined with the  Meta
              modifier  key) 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 eightBit-
              Input resource.  The default is "false".
      mkSamplePass (class MkSamplePass)
              If mkSampleSize is nonzero,  and  mkWidth  (and  cjkWidth)  are
              false,  on  startup  xterm  compares its built-in tables to the
              system's wide character width data to decide if it will use the
              system's  data.  It tests the first mkSampleSize character val-
              ues, and allows up to mkSamplePass mismatches before  the  test
              fails.   The  default (for the allowed number of mismatches) is
              256.
      mkSampleSize (class MkSampleSize)
              With mkSamplePass, this specifies a startup test used for  ini-
              tializing wide character width calculations.  The default (num-
              ber of characters to check) is 1024.
      mkWidth (class MkWidth)
              Specifies whether xterm should use a built-in  version  of  the
              wide  character  width  calculation.   See  also  the  cjkWidth
              resource which can override this.  The default is "false".
              Here is a summary of the resources which control the choice  of
              wide character width calculation:
              cjkWidth   mkWidth   Action
              ---------------------------------------------------------------
              false      false     use system tables subject to mkSamplePass
              false      true      use built-in tables
              true       false     use built-in CJK tables
              true       true      use built-in CJK tables
      modifyCursorKeys (class ModifyCursorKeys)
              Tells  how  to  handle the special case where Control-, Shift-,
              Alt- or Meta-modifiers are used  to  add  a  parameter  to  the
              escape sequence returned by a cursor-key.  The default is "2":
              Set it to -1 to disable it.
              Set it to 0 to use the old/obsolete behavior.
              Set it to 1 to prefix modified sequences with CSI.
              Set it to 2 to force the modifier to be the second parameter if
              it would otherwise be the first.
              Set it to 3 to mark the sequence with a ">" to hint that it  is
              private.
      modifyFunctionKeys (class ModifyFunctionKeys)
              Tells  how  to  handle the special case where Control-, Shift-,
              Alt- or Meta-modifiers are used  to  add  a  parameter  to  the
              escape  sequence  returned  by  a (numbered) function-key.  The
              default is "2".  The resource values are similar to  modifyCur-
              sorKeys:
              Set it to -1 to permit the user to use shift- and control-modi-
              fiers to construct function-key strings using the normal encod-
              ing scheme.
              Set it to 0 to use the old/obsolete behavior.
              Set it to 1 to prefix modified sequences with CSI.
              Set it to 2 to force the modifier to be the second parameter if
              it would otherwise be the first.
              Set it to 3 to mark the sequence with a ">" to hint that it  is
              private.
              If  modifyFunctionKeys  is zero, xterm uses Control- and Shift-
              modifiers to allow the user to construct numbered function-keys
              beyond the set provided by the keyboard:
              Control
                   adds the value given by the ctrlFKeys resource.
              Shift
                   adds twice the value given by the ctrlFKeys resource.
              Control/Shift
                   adds   three  times  the  value  given  by  the  ctrlFKeys
                   resource.
              As a special case, legacy (when  oldFunctionKeys  is  true)  or
              vt220  (when  sunKeyboard is true) keyboards interpret only the
              Control-modifier  when  constructing  numbered   function-keys.
              This  is done to provide compatible keyboards for DEC VT220 and
              related terminals that implement user-defined keys (UDK).
      modifyOtherKeys (class ModifyOtherKeys)
              Like modifyCursorKeys,  tells  xterm  to  construct  an  escape
              sequence  for  other  keys  (such as "2") when modified by Con-
              trol-, Alt- or Meta-modifiers.  This feature does not apply  to
              function  keys and well-defined keys such as ESC or the control
              keys.  The default is "0":
              0    disables this feature.
              1    enables this feature for keys except for those with  well-
                   known behavior, e.g., Tab, Backarrow and some special con-
                   trol character cases, e.g., Control-Space to make a NUL.
              2    enables this feature for  keys  including  the  exceptions
                   listed.
      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  asyn-
              chronously.  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  by  the
              marginBell resource.  The default is "10".
      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 func-
              tion  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".
      on2Clicks (class On2Clicks)
      on3Clicks (class On3Clicks)
      on4Clicks (class On4Clicks)
      on5Clicks (class On5Clicks)
              Specify  selection  behavior  in  response  to  multiple  mouse
              clicks.   A  single  mouse  click  is  always  interpreted   as
              described in the SELECTION section (see POINTER USAGE).  Multi-
              ple mouse clicks (using the button which activates the  select-
              start  action) are interpreted according to the resource values
              of on2Clicks, etc.  The resource value can be one of these:
              word
                 Select a "word" as determined  by  the  charClass  resource.
                 See the CHARACTER CLASSES section.
              line
                 Select a line (counting wrapping).
              group
                 Select  a  group of adjacent lines (counting wrapping).  The
                 selection stops on a blank line, and does not extend outside
                 the current page.
              page
                 Select all visible lines, i.e., the page.
              all
                 Select all lines, i.e., including the saved lines.
              regex
                 Select  a  "word"  as  determined  by the regular expression
                 which follows in the resource value.
              none
                 No selection action is associated with this resource.  xterm
                 interprets  it as the end of the list.  For example, you may
                 use it to disable triple (and higher)  clicking  by  setting
                 on3Clicks to "none".
              The  default  values for on2Clicks and on3Clicks are "word" and
              "line", respectively.  There is no default value for  on4Clicks
              or  on5Clicks, making those inactive.  On startup, xterm deter-
              mines the maximum number of clicks by  the  onXClicks  resource
              values which are set.
      openIm (class XtCOpenIm)
              Tells  xterm  whether to open the input method at startup.  The
              default is "true".
      pointerColor (class PointerColor)
              Specifies the foreground color of the pointer.  The default  is
              "XtDefaultForeground".
      pointerColorBackground (class PointerColorBackground)
              Specifies  the background color of the pointer.  The default is
              "XtDefaultBackground".
      pointerMode (class PointerMode)
              Specifies when the pointer may be hidden as the user types.  It
              will  be redisplayed if the user moves the mouse, or clicks one
              of its buttons.
              0  never
              1  the application running in xterm  has  not  activated  mouse
                 mode.  This is the default.
              2  always.
      pointerShape (class Cursor)
              Specifies the name of the shape of the pointer.  The default is
              "xterm".
      popOnBell (class PopOnBell)
              Specifies whether the window would be raised when Control-G  is
              received.  The default is "false".
              If  the  window is iconified, this has no effect.  However, the
              zIconBeep resource provides you with the ability to  see  which
              iconified windows have sounded a bell.
      precompose (class XtCPrecompose)
              Tells xterm whether to precompose UTF-8 data into Normalization
              Form C, which combines commonly-used accents onto base  charac-
              ters.   If  it does not do this, accents are left as separatate
              characters.  The default is "true".
      preeditType (class XtCPreeditType)
              Tells xterm which types of preedit  (preconversion)  string  to
              display.  The default is "OverTheSpot,Root".
      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.
              o   "0" disables the attributes.
              o   "1"  prints  the normal set of attributes (bold, underline,
                  inverse and blink) as VT100-style control sequences.
              o   "2" prints ANSI color attributes as well.
              The default is "1".
      printFileImmediate (PrintFileImmediate)
              When the print-immediate action is invoked,  xterm  prints  the
              screen  contents  directly to a file.  Set this resource to the
              prefix of the filename (a timestamp will  be  appended  to  the
              actual name).
              The  default  is  an  empty string, i.e., "", However, when the
              print-immediate action is invoked, if the string is empty, then
              "XTerm" is used.
      printFileOnXError (PrintFileOnXError)
              If xterm exits with an X error, e.g., your connection is broken
              when the server crashes, it can be told to write  the  contents
              of  the  screen  to  a  file.   To enable the feature, set this
              resource to the prefix of the filename  (a  timestamp  will  be
              appended to the actual name).
              The  default  is an empty string, i.e., "", which disables this
              feature.  However, when the print-on-error action  is  invoked,
              if the string is empty, then "XTermError" is used.
              These error codes are handled: ERROR_XERROR, ERROR_XIOERROR and
              ERROR_ICEERROR.
      printModeImmediate (PrintModeImmediate)
              When the print-immediate action is invoked,  xterm  prints  the
              screen  contents directly to a file.  You can use the printMod-
              eImmediate resource to tell  it  to  use  escape  sequences  to
              reconstruct  the  video  attributes  and colors.  This uses the
              same values as the printAttributes resource.   The  default  is
              "0".
      printModeOnXError (PrintModeOnXError)
              Xterm   implements  the  printFileOnXError  feature  using  the
              printer feature, although the output is written directly  to  a
              file.  You can use the printModeOnXError resource to tell it to
              use escape sequences to reconstruct the  video  attributes  and
              colors.   This  uses  the  same  values  as the printAttributes
              resource.  The default is "0".
      printOptsImmediate (PrintOptsImmediate)
              Specify the range of text which is printed to a file  when  the
              print-immediately action is invoked.
              o   If zero (0), then this selects the current (visible screen)
                  plus the saved lines, except if  the  alternate  screen  is
                  being  used.   In  that  case, only the alternate screen is
                  selectd.
              o   If nonzero, the bits of this  resource  value  (checked  in
                  descending order) select the range:
                  8  selects the saved lines.
                  4  selects the alternate screen.
                  2  selects the normal screen.
                  1  selects the current screen, which can be either the nor-
                     mal or alternate screen.
              The default is "9", which selects the  current  visible  screen
              plus  saved  lines,  with  no  special  case for the alternated
              screen.
      printOptsOnXError (PrintOptsOnXError)
              Specify the range of text which is printed to a file  when  the
              print-on-error action is invoked.  The resource value is inter-
              preted the same as in printOptsImmediate.
              The default is "9", which selects the  current  visible  screen
              plus  saved  lines,  with  no  special  case for the alternated
              screen.
      printerAutoClose (class PrinterAutoClose)
              If "true", xterm will close  the  printer  (a  pipe)  when  the
              application switches the printer offline with a Media Copy com-
              mand.  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
              an empty string, i.e., "".  If the resource value is  given  as
              an empty string, the printer is disabled.
      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  mar-
              gins (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".
      printerNewLine (class PrinterNewLine)
              Controls whether a newline is sent to the printer at the end of
              a print page function.  The default is "true".
      quietGrab (class QuietGrab)
              Controls  whether  the  cursor is repainted when NotifyGrab and
              NotifyUngrab event types are received during change  of  focus.
              The default is "false".
      renderFont (class RenderFont)
              If  xterm  is built with the Xft library, this controls whether
              the faceName resource is used.  The default is "default".
              The resource values are strings, evaluated  as  booleans  after
              startup.
              false
                   disable the feature and use the normal (bitmap) font.
              true
                   startup  using the TrueType font specified by the faceName
                   and faceSize resource settings.  If there is no value  for
                   faceName,  disable the feature and use the normal (bitmap)
                   font.
                   After startup, you can still  switch  to/from  the  bitmap
                   font using the "TrueType Fonts" menu entry.
              default
                   startup  using  the  normal  (bitmap) font, but enable the
                   "TrueType Fonts" menu entry  to  allow  runtime  switching
                   to/from TrueType fonts.
                   If there is no faceName resource set, then runtime switch-
                   ing to TrueType fonts is disabled.  Xterm has  a  separate
                   compiled-in  value for faceName for the special case where
                   renderFont is "default".  That is normally "mono".
      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.
      retryInputMethod (class XtCRetryInputMethod)
              Tells xterm how many times to retry, in case  the  input-method
              server  is  not  responding.   This  is  a different issue than
              unsupported preedit type, etc.  You may  encounter  retries  if
              your  X  configuration  (and its libraries) are missing pieces.
              Setting this resource to zero ``0 will cancel  the  retrying.
              The default is ``3.
      reverseVideo (class ReverseVideo)
              Specifies  whether  or  not  reverse video should be simulated.
              The default is "false".
              There are several aspects to reverse video in xterm:
              o   The command-line  -rv  option  tells  the  X  libraries  to
                  reverse the foreground and background colors.  Xterm's com-
                  mand-line options set resource values.  In particular,  the
                  X  Toolkit  sets  the  reverseVideo  resource  when the -rv
                  option is used.
              o   If the user has also used command-line options -fg  or  -bg
                  to set the foreground and background colors, xterm does not
                  see these  options  directly.   Instead,  it  examines  the
                  resource  values  to  reconstruct the command-line options,
                  and determine which of the colors is  the  user's  intended
                  foreground, etc.  Their actual values are irrelevant to the
                  reverse video function; some users prefer  the  X  defaults
                  (black  text  on  a  white background), others prefer white
                  text on a black background.
              o   After startup, the user  can  toggle  the  "Enable  Reverse
                  Video"  menu  entry.  This exchanges the current foreground
                  and background colors of the VT100 widget, and repaints the
                  screen.  Because of the X resource hierarchy, the reverseV-
                  ideo resource applies to more than the VT100 widget.
              Programs running in an xterm can also use control sequences  to
              enable  the VT100 reverse video mode.  These are independent of
              the reverseVideo resource and the menu entry.  Xterm  exchanges
              the  current foreground and background colors when drawing text
              affected by these control sequences.
              Other control sequences can alter the foreground and background
              colors which are used:
              o   Programs  can  also use the ANSI color control sequences to
                  set the foreground and background colors.
              o   Extensions to the ANSI color controls (such as 16-, 88-  or
                  256-colors) are treated similarly to the ANSI control.
              o   Using  other  control  sequences (the "dynamic colors" fea-
                  ture), a program can change the foreground  and  background
                  colors.
      reverseWrap (class ReverseWrap)
              Specifies  whether or not reverse-wraparound should be enabled.
              This corresponds to xterm's private mode 45.   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".
      scrollBarBorder (class ScrollBarBorder)
              Specifies the width of the scrollbar border.  Note that this is
              drawn to overlap the border of the xterm window.  Modifying the
              scrollbar's border affects only the line between the VT100 wid-
              get and the scrollbar.  The default value is 1.
      scrollKey (class ScrollCond)
              Specifies  whether  or  not pressing a key should automatically
              cause the scrollbar to  go  to  the  bottom  of  the  scrolling
              region.   This  corresponds  to xterm's private mode 1011.  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 automat-
              ically cause the scrollbar to go to the bottom of the scrolling
              region.  The default is "true".
      selectToClipboard (class SelectToClipboard)
              Tells xterm whether to use the PRIMARY or CLIPBOARD for  SELECT
              tokens  in  the selection mechanism.  The set-select action can
              change this at runtime, allowing the user to work with programs
              that  handle  only  one  of  these  mechanisms.  The default is
              "false", which tells it to use PRIMARY.
      shiftFonts (class ShiftFonts)
              Specifies whether to enable the  actions  larger-vt-font()  and
              smaller-vt-font(),  which  are  normally  bound  to the shifted
              KP_Add and KP_Subtract.  The default is "true".
      showBlinkAsBold (class ShowBlinkAsBold)
              Tells xterm whether to display text  with  blink-attribute  the
              same  as  bold.   If  xterm  has not been configured to support
              blinking text, the default  is  "true",  which  corresponds  to
              older versions of xterm, otherwise the default is "false".
      showMissingGlyphs (class ShowMissingGlyphs)
              Tells  xterm  whether to display a box outlining places where a
              character has been used that the font does not represent.   The
              default is "false".
      showWrapMarks (class ShowWrapMarks)
              For  debugging  xterm  and applications that may manipulate the
              wrapped-line flag by writing text at the right margin,  show  a
              mark  on  the right inner-border of the window.  The mark shows
              which lines have the flag set.
      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 win-
              dow.  There is no default for this resource.
      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".
      tiXtraScroll (class TiXtraScroll)
              Specifies whether xterm should scroll to a new page  when  pro-
              cessing  the ti termcap entry, i.e., the private modes 47, 1047
              or 1049.  This is only in  effect  if  titeInhibit  is  "true",
              because  the  intent  of this option is to provide a picture of
              the full-screen application's display on the scrollback without
              wiping  out the text that would be shown before the application
              was initialized.  The default for this resource is "false".
      titeInhibit (class TiteInhibit)
              Specifies whether or not xterm should 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.  The default for this resource is
              "false".
      titleModes (class TitleModes)
              Tells xterm whether to accept or return window- and icon-labels
              in ISO-8859-1 (the default) or UTF-8.  Either can be encoded in
              hexadecimal.  The default for this resource is "0".
              Each bit (bit "0" is 1, bit "1" is 2, etc.)  corresponds to one
              of the parameters set by the title modes control sequence:
              0    Set window/icon labels using hexadecimal
              1    Query window/icon labels using hexadecimal
              2    Set  window/icon  labels using UTF-8 (overrides utf8Titles
                   resource).
              3    Query window/icon labels using UTF-8
      translations (class Translations)
              Specifies the key and button bindings  for  menus,  selections,
              "programmed  strings",  etc.   The translations resource, which
              provides much of xterm's configurability, is a feature of the X
              Toolkit Intrinsics library (Xt).  See the ACTIONS section.
      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 underlin-
              ing when color is being used for the underline attribute.   The
              default is "true".
      useClipping (class UseClipping)
              Tell  xterm whether to use clipping to keep from producing dots
              outside the text drawing area.  Originally used to work  around
              for overstriking effects, this is also needed to work with some
              incorrectly-sized fonts.  The default is "true".
      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.  The resource can be set via the menu entry "UTF-8
              Encoding".  The default is "default".
              Xterm  accepts  either  a keyword (ignoring case) or the number
              shown in parentheses:
              false (0)
                 UTF-8 mode is initially off.  The  command-line  option  +u8
                 sets the resource to this value.  Escape sequences for turn-
                 ing UTF-8 mode on/off are allowed.
              true (1)
                 UTF-8 mode is initially on.  Escape  sequences  for  turning
                 UTF-8 mode on/off are allowed.
              always (2)
                 The command-line option -u8 sets the resource to this value.
                 Escape sequences for turning UTF-8 mode on/off are  ignored.
              default (3)
                 This  is  the  default value of the resource.  It is changed
                 during  initialization  depending  on  whether  the   locale
                 resource  was  set,  to  false  (0)  or always (2).  See the
                 locale  resource  for  additional  discussion  of  non-UTF-8
                 locales.
              If  you  want  to  set  the value of utf8, it should be in this
              range.  Other nonzero values are treated the same as "1", i.e.,
              UTF-8  mode  is  initially on, and escape sequences for turning
              UTF-8 mode on/off are allowed.
      utf8Fonts (class Utf8Fonts)
              See the discussion of  the  locale  resource.   This  specifies
              whether  xterm will use UTF-8 fonts specified via resource pat-
              terns such as "*vt100.utf8Fonts.font"  or  normal  (ISO-8859-1)
              fonts  via patterns such as "*vt100.font".  The resource can be
              set  via  the  menu  entry  "UTF-8  Fonts".   The  default   is
              "default".
              Xterm  accepts  either  a keyword (ignoring case) or the number
              shown in parentheses:
              false (0)
                     Use the ISO-8859-1 fonts.  The menu  entry  is  enabled,
                     allowing the choice of fonts to be changed at runtime.
              true (1)
                     Use  the UTF-8 fonts.  The menu entry is enabled, allow-
                     ing the choice of fonts to be changed at runtime.
              always (2)
                     Always use the UTF-8 fonts.  This also disables the menu
                     entry.
              default (3)
                     At  startup,  the  resource  is  set  to  true or false,
                     according to the effective value of the utf8 resource.
      utf8Latin1 (class Utf8Latin1)
              If true, allow an ISO-8859-1 normal font to be combined with an
              ISO-10646 font if the latter is given via the -fw option or its
              corresponding resource value.  The default is "false".
      utf8SelectTypes (class Utf8SelectTypes)
              Override   xterm's   default   selection   target   list   (see
              SELECT/PASTE)  for  selections  in wide-character (UTF-8) mode.
              The default is an empty string, i.e., "", which does not  over-
              ride anything.
      utf8Title (class Utf8Title)
              Applications  can  set  xterm's  title  by  writing  a  control
              sequence.  Normally this control  sequence  follows  the  VT220
              convention,  which  encodes the string in ISO-8859-1 and allows
              for an 8-bit string terminator.  If xterm is started in a UTF-8
              locale,  it  translates  the ISO-8859-1 string to UTF-8 to work
              with the X libraries which assume the string is UTF-8.
              However, some users may wish to write a title string encoded in
              UTF-8.   The  window  manager is responsible for drawing window
              titles.  Some window managers (not all) support UTF-8  encoding
              of  window  titles.  Set this resource to "true" to allow UTF-8
              encoded title strings.  That cancels the translation to  UTF-8,
              allowing UTF-8 strings to be displayed as is.
              This  feature is available as a menu entry, since it is related
              to the particular applications you are  running  within  xterm.
              You  can  also  use  a  control sequence (see the discussion of
              "Title Modes" in the control sequences  document),  to  set  an
              equivalent  flag.  The titleModes resource sets the same value,
              which overrides this resource.
              The default is "false".
      veryBoldColors (class VeryBoldColors)
              Specifies whether to combine video attributes with colors spec-
              ified  by  colorBD, colorBL, colorRV and colorUL.  The resource
              value is the sum of values for each attribute:
                1 for reverse,
                2 for underline,
                4 for bold and
                8 for blink.
              The default is "0".
      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", which tells xterm  to  use  an  audible
              bell.
      visualBellDelay (class VisualBellDelay)
              Number  of milliseconds to delay when displaying a visual bell.
              Default is 100.  If set to zero, no visual bell  is  displayed.
              This  is useful for very slow displays, e.g., an LCD display on
              a laptop.
      visualBellLine (class VisualBellLine)
              Specifies whether to flash only the current line when  display-
              ing a visual bell.  rather than flashing the entire screen: The
              default is "false", which  tells  xterm  to  flash  the  entire
              screen.
      vt100Graphics (class VT100Graphics)
              This specifies whether xterm will interpret VT100 graphic char-
              acter escape sequences while in UTF-8  mode.   The  default  is
              "true", to provide support for various legacy applications.
      wideBoldFont (class WideBoldFont)
              This  option  specifies the font to be used for displaying bold
              wide text.  By default, it will attempt to use a font twice  as
              wide  as  the  font that will be used to draw bold text.  If no
              double-width font is found, it will  improvise,  by  stretching
              the bold font.
      wideChars (class WideChars)
              Specifies  if  xterm  should  respond to control sequences that
              process 16-bit characters.  The default is "false".
      wideFont (class WideFont)
              This option specifies the font to be used for  displaying  wide
              text.   By default, it will attempt to use a font twice as wide
              as the font that will be used to draw normal text.  If no  dou-
              ble-width  font  is found, it will improvise, by stretching the
              normal font.
      ximFont (class XimFont)
              This option specifies the font to be used  for  displaying  the
              preedit string in the "OverTheSpot" input method.
              In  "OverTheSpot"  preedit  type,  the  preedit (preconversion)
              string is displayed at the position of the cursor.  It  is  the
              XIM server's responsibility to display the preedit string.  The
              XIM client must inform the XIM server of the  cursor  position.
              For  best  results, the preedit string must be displayed with a
              proper font.  Therefore, xterm informs the XIM  server  of  the
              proper  font.   The  font  is be supplied by a "fontset", whose
              default value is "*".  This matches every font, the  X  library
              automatically  chooses fonts with proper charsets.  The ximFont
              resource is provided to override this default font setting.
  Tek4014 Widget Resources
      The following resources are specified as part  of  the  tek4014  widget
      (class   Tek4014).    These   are   specified   by   patterns  such  as
      "XTerm.tek4014.NAME":
      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  sta-
              tus  report.  The possibilities are "none", which sends no ter-
              minating 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.
  Menu Resources
      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.
      Resources named "lineN" where N is a number are separators  with  class
      SmeLine.
      The mainMenu has the following entries:
      toolbar (class SmeBSB)
              This entry invokes the set-toolbar(toggle) action.
      securekbd (class SmeBSB)
              This entry invokes the secure() action.
      allowsends (class SmeBSB)
              This entry invokes the allow-send-events(toggle) action.
      redraw (class SmeBSB)
              This entry invokes the redraw() action.
      logging (class SmeBSB)
              This entry invokes the logging(toggle) action.
      print-immediate (class SmeBSB)
              This entry invokes the print-immediate() action.
      print-on-error (class SmeBSB)
              This entry invokes the print-on-error() action.
      print (class SmeBSB)
              This entry invokes the print() action.
      print-redir (class SmeBSB)
              This entry invokes the print-redir() action.
      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.
      alt-esc (class SmeBSB)
              This entry invokes the alt-sends-escape(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.
      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.
      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.
      bellIsUrgent (class SmeBSB)
              This entry invokes the set-bellIsUrgent(toggle) action.
      poponbell (class SmeBSB)
              This entry invokes the set-poponbell(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".
      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.
      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.
      font-linedrawing (class SmeBSB)
              This entry invokes the set-font-linedrawing(s) action.
      font-packed (class SmeBSB)
              This entry invokes the set-font-packed(s) action.
      font-doublesize (class SmeBSB)
              This entry invokes the set-font-doublesize(s) action.
      render-font (class SmeBSB)
              This entry invokes the set-render-font(s) action.
      utf8-mode (class SmeBSB)
              This entry invokes the set-utf8-mode(s) action.
      utf8-title (class SmeBSB)
              This entry invokes the set-utf8-title(s) action.
      The tekMenu has the following entries:
      tektextlarge (class SmeBSB)
              This entry invokes the set-tek-text(large) 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(small) action.
      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.
      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.
  Scrollbar Resources
      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.

[править] POINTER USAGE

      Once  the  VT102 window is created, xterm allows you to select text and
      copy it within the same or other windows.
  SELECTION
      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.  Normally (but see the discussion of on2Clicks, etc):
             o   Double-clicking selects by words.
             o   Triple-clicking selects by lines.
             o   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/but-
      ton  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 com-
      mand to the shell, for example, or  take  output  from  a  program  and
      insert  it  into  your favorite editor.  Since cut buffers are globally
      shared among different applications, you may regard each  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.
  SCROLLING
      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.
  TEKTRONIX POINTER
      Unlike  the VT102 window, the Tektronix window does not allow the copy-
      ing 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).

[править] SELECT/PASTE

      X clients provide select and paste support by  responding  to  requests
      conveyed by the server.
  PRIMARY
      When  configured  to use the primary selection, (the default) xterm can
      provide the selection data in  ways  which  help  to  retain  character
      encoding information as it is pasted.
      A  user "selects" text on xterm, which highlights the selected text.  A
      subsequent "paste" to another client forwards a request to  the  client
      owning  the  selection.   If xterm owns the primary selection, it makes
      the data available in the form of one or more "selection targets".   If
      it  does  not own the primary selection, e.g., if it has released it or
      another client has asserted ownership, it relies on cut-buffers to pass
      the  data.   But  cut-buffers handle only ISO-8859-1 data (officially -
      some clients ignore the rules).
  CLIPBOARD
      When configured to use the clipboard (see resource  selectToClipboard),
      the  problem  with  persistence  of  ownership is bypassed.  Otherwise,
      there is no difference regarding the  data  which  can  be  passed  via
      selection.
  SELECTION TARGETS
      The different types of data which are passed depend on what the receiv-
      ing client asks for.  These are termed selection targets.
      When asking for the selection data, xterm tries the following types  in
      this order:
             UTF8_STRING
                  This  is  an XFree86 extension, which denotes that the data
                  is encoded in UTF-8.  When xterm is built with wide-charac-
                  ter support, it both accepts and provides this type.
             TEXT the  text is in the encoding which corresponds to your cur-
                  rent locale.
             COMPOUND_TEXT
                  this is a format for multiple character set data,  such  as
                  multi-lingual  text.   It can store UTF-8 data as a special
                  case.
             STRING
                  This is Latin 1 (ISO-8859-1) data.
      The middle two (TEXT and COMPOUND_TEXT) are added if xterm  is  config-
      ured with the i18nSelections resource set to "true".
      UTF8_STRING  is  preferred  (therefore  first  in the list) since xterm
      stores text as Unicode data when running in wide-character mode, and no
      translation  is  needed.  On the other hand, TEXT and COMPOUND_TEXT may
      require translation.  If  the  translation  is  incomplete,  they  will
      insert X's "defaultString" whose value cannot be set, and may simply be
      empty.  Xterm's defaultString resource specifies the string to use  for
      incomplete translations of the UTF8_STRING.
      You can alter the types which xterm tries using the eightBitSelectTypes
      or utf8SelectTypes resources.  For instance, you might have  some  spe-
      cific  locale  setting which does not use UTF-8 encoding.  The resource
      value is a comma-separated list of the selection targets, which consist
      of  the  names  shown.  You can use the special name I18N to denote the
      optional inclusion of TEXT and COMPOUND_TEXT.  The  names  are  matched
      ignoring  case,  and  can  be  abbreviated.   The  default  list can be
      expressed in several ways, e.g.,
             UTF8_STRING,I18N,STRING
             utf8,i18n,string
             u,i,s

[править] MENUS

      Xterm has four menus, named mainMenu, vtMenu,  fontMenu,  and  tekMenu.
      Each  menu  pops  up  under  the correct combinations of key and button
      presses.  Each menu is divided into sections, separated by a horizontal
      line.   Some  menu  entries correspond to 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.  Other menu entries are commands;
      selecting one of these performs the indicated function.
      All of the menu entries correspond to X actions.  In  the  list  below,
      the menu label is shown followed by the action's name in parenthesis.
  Main Options
      The  xterm  mainMenu  pops up when the "control" key and pointer button
      one are pressed in a window.  This menu contains items  that  apply  to
      both the VT102 and Tektronix windows.  There are several sections:
      Commands for managing X events:
             Toolbar
                    Clicking on the "Toolbar" menu entry hides the toolbar if
                    it is visible, and shows it if it is not.
             Secure Keyboard (securekbd)
                    The Secure Keyboard mode is helpful when typing in  pass-
                    words or other sensitive data in an unsecure environment;
                    see SECURITY below (but read the limitations  carefully).
             Allow SendEvents (allowsends)
                    Specifies  whether or not synthetic key and button events
                    generated using the X protocol SendEvent  request  should
                    be  interpreted  or  discarded.   This corresponds to the
                    allowSendEvents resource.
             Redraw Window (redraw)
                    Forces the X display to repaint; useful in some  environ-
                    ments.
      Commands for capturing output:
             Log to File (logging)
                    Captures  text sent to the screen in a logfile, as in the
                    -l logging option.
             Print-All Immediately
                    Invokes the print-immediate action, sending the  text  of
                    the  current  window  directly to a file, as specified by
                    the printFileImmediate, printModeImmediate and  printOpt-
                    sImmediate resources.
             Print-All on Error
                    Invokes  the  print-on-error action, which toggles a flag
                    telling xterm that if it exits with an X error,  to  send
                    the  text  of  the  current window directly to a file, as
                    specified by  the  printFileXError,  printModeXError  and
                    printOptsXError resources.
             Print Window (print)
                    Sends the text of the current window to the program given
                    in the printerCommand resource.
             Redirect to Printer (print-redir)
                    This sets the printerControlMode to 0 or 2.  You can  use
                    this to turn the printer on as if an application had sent
                    the appropriate control sequence.  It is also useful  for
                    switching  the  printer off if an application turns it on
                    without resetting the print control mode.
      Modes for setting keyboard style:
             8-Bit Controls (8-bit-control)
                    Enabled for VT220 emulation, this controls whether  xterm
                    will send 8-bit control sequences rather than using 7-bit
                    (ASCII) controls, e.g.,  sending  a  byte  in  the  range
                    128-159  rather  than  the escape character followed by a
                    second byte.  Xterm  always  interprets  both  8-bit  and
                    7-bit  control  sequences (see the document Xterm Control
                    Sequences).   This  corresponds  to  the  eightBitControl
                    resource.
             Backarrow Key (BS/DEL) (backarrow key)
                    Modifies  the  behavior  of  the backarrow key, making it
                    transmit either a backspace (8) or delete  (127)  charac-
                    ter.  This corresponds to the backarrowKey resource.
             Alt/NumLock Modifiers (num-lock)
                    Controls the treatment of Alt- and NumLock-key modifiers.
                    This corresponds to the numLock resource.
             Meta Sends Escape (meta-esc)
                    Controls whether Meta keys are converted into a two-char-
                    acter sequence with the character itself preceded by ESC.
                    This corresponds to the metaSendsEscape resource.
             Delete is DEL (delete-is-del)
                    Controls whether the Delete key  on  the  editing  keypad
                    should  send  DEL  (127) or the VT220-style Remove escape
                    sequence.  This corresponds to the deleteIsDEL  resource.
             Old Function-Keys (oldFunctionKeys)
             HP Function-Keys (hpFunctionKeys)
             SCO Function-Keys (scoFunctionKeys)
             Sun Function-Keys (sunFunctionKeys)
             VT220 Keyboard (sunKeyboard)
                    These  act as a radio-button, selecting one style for the
                    keyboard  layout.   It  corresponds  to  more  than   one
                    resource  setting: sunKeyboard, sunFunctionKeys, scoFunc-
                    tionKeys and hpFunctionKeys ."
      Commands for process signalling:
             Send STOP Signal (suspend)
             Send CONT Signal (continue)
             Send INT Signal (interrupt)
             Send HUP Signal (hangup)
             Send TERM Signal (terminate)
             Send KILL Signal (kill)
                    These send the SIGTSTP, SIGCONT, SIGINT, SIGHUP,  SIGTERM
                    and SIGKILL signals respectively, to the process group of
                    the process running under xterm (usually the shell).  The
                    SIGCONT  function  is  especially  useful if the user has
                    accidentally typed CTRL-Z, suspending the process.
             Quit (quit)
                    Stop processing X events  except  to  support  the  -hold
                    option,  and then send a SIGHUP signal to the the process
                    group of the process running  under  xterm  (usually  the
                    shell).


  VT Options
      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.
      VT102/VT220 Modes:
             Enable Scrollbar (scrollbar)
                    Enable  (or  disable) the scrollbar.  This corresponds to
                    the -sb option and the scrollBar resource.
             Enable Jump Scroll (jumpscroll)
                    Enable (or disable) jump scrolling.  This corresponds  to
                    the -j option and the jumpScroll resource.
             Enable Reverse Video (reversevideo)
                    Enable  (or  disable) reverse-video.  This corresponds to
                    the -rv option and the reverseVideo resource.
             Enable Auto Wraparound (autowrap)
                    Enable (or disable) auto-wraparound.  This corresponds to
                    the -aw option and the autoWrap resource.
             Enable Reverse Wraparound (reversewrap)
                    Enable (or disable) reverse wraparound.  This corresponds
                    to the -rw option and the reverseWrap resource.
             Enable Auto Linefeed (autolinefeed)
                    Enable (or disable) auto-linefeed.  This is the VT102 NEL
                    function,  which  causes  the emulator to emit a linefeed
                    after each carriage return.  There  is  no  corresponding
                    command-line option or resource setting.
             Enable Application Cursor Keys (appcursor)
                    Enable (or disable) application cursor keys.  This corre-
                    sponds to the appcursorDefault  resource.   There  is  no
                    corresponding command-line option.
             Enable Application Keypad (appkeypad)
                    Enable (or disable) application keypad keys.  This corre-
                    sponds to the appkeypadDefault  resource.   There  is  no
                    corresponding command-line option.
             Scroll to Bottom on Key Press (scrollkey)
                    Enable  (or  disable)  scrolling  to  the  bottom  of the
                    scrolling region on a keypress.  This corresponds to  the
                    -sk option and the scrollKey resource.
                    As  a  special  case,  the XON / XOFF keys (control/S and
                    control/Q) are ignored.
             Scroll to Bottom on Tty Output (scrollttyoutput)
                    Enable (or  disable)  scrolling  to  the  bottom  of  the
                    scrolling  region on output to the terminal.  This corre-
                    sponds  to  the  -si  option  and   the   scrollTtyOutput
                    resource.
             Allow 80/132 Column Switching (allow132)
                    Enable (or disable) switching between 80 and 132 columns.
                    This  corresponds  to  the  -132  option  and  the   c132
                    resource.
             Keep Selection (keepSelection)
                    Tell  xterm whether to disown the selection when it stops
                    highlighting it, e.g., when an application  modifies  the
                    display  so  that it no longer matches the text which has
                    been highlighted.  As long as xterm continues to own  the
                    selection, it can provide the corresponding text to other
                    clients via cut/paste.  This corresponds to  the  keepSe-
                    lection resource.  There is no corresponding command-line
                    option.
             Select to Clipboard (selectToClipboard)
                    Tell xterm whether to use the PRIMARY  or  CLIPBOARD  for
                    SELECT  tokens  in  the  translations resource which maps
                    keyboard and mouse actions to select/paste actions.  This
                    corresponds  to the selectToClipboard resource.  There is
                    no corresponding command-line option.
             Enable Visual Bell (visualbell)
                    Enable (or disable) visible bell (i.e., flashing) instead
                    of  an  audible bell.  This corresponds to the -vb option
                    and the visualBell resource.
             Enable Bell Urgency (bellIsUrgent)
                    Enable (or disable) Urgency window manager hint when Con-
                    trol-G is received.  This corresponds to the bellIsUrgent
                    resource.
             Enable Pop on Bell (poponbell)
                    Enable (or disable) raising of the window when  Control-G
                    is received.  This corresponds to the -pop option and the
                    popOnBell resource.
             Enable Blinking Cursor (cursorblink)
                    Enable (or disable) the  blinking-cursor  feature.   This
                    corresponds   to  the  -bc  option  and  the  cursorBlink
                    resource.  There is also an escape sequence (see the doc-
                    ument  Xterm  Control Sequences).  The menu entry and the
                    escape sequence states are XOR'd: if  both  are  enabled,
                    the  cursor  will  not blink, if only one is enabled, the
                    cursor will blink.
             Enable Alternate Screen Switching (titeInhibit)
                    Enable (or disable)  switching  between  the  normal  and
                    alternate  screens.   This corresponds to the titeInhibit
                    resource.  There is no corresponding command-line option.
             Enable Active Icon (activeicon)
                    Enable (or disable) the active-icon feature.  This corre-
                    sponds to the -ai option and the activeIcon resource.
      VT102/VT220 Commands:
             Do Soft Reset (softreset)
                    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).  This corre-
                    sponds to the VT220 DECSTR control sequence.
             Do Full Reset (hardreset)
                    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.   This  corresponds  to  the  VT102  RIS control
                    sequence, with a few obvious differences.   For  example,
                    your  session  is  not disconnected as a real VT102 would
                    do.
             Reset and Clear Saved Lines (clearsavedlines)
                    Perform a full reset, and also clear the saved lines.
      Commands for setting the current screen:
             Show Tek Window (tekshow)
                    When enabled, pops the Tektronix 4014 window up (makes it
                    visible).   When  disabled, hides the Tektronix 4014 win-
                    dow.
             Switch to Tek Mode (tekmode)
                    When enabled, pops the Tektronix 4014 window up if it  is
                    not  already  visible,  and  switches the input stream to
                    that window.  When disabled,  hides  the  Tektronix  4014
                    window and switches input back to the VTxxx window.
             Hide VT Window (vthide)
                    When enabled, hides the VTxxx window, shows the Tektronix
                    4014 window if it was not already  visible  and  switches
                    the  input  stream  to that window.  When disabled, shows
                    the VTxxx window, and switches the input stream  to  that
                    window.
             Show Alternate Screen (altscreen)
                    When enabled, shows the alternate screen.  When disabled,
                    shows the normal screen.  Note that the normal screen may
                    have saved lines; the alternate screen does not.


  VT Fonts
      The  fontMenu  pops  up  when when the "control" key and pointer button
      three are pressed in a window.  It sets the font used in the VT102 win-
      dow, or modifies the way the font is specified or displayed.  There are
      several sections.
      The first section allows you to select the font from a set of  alterna-
      tives:
             Default (fontdefault)
                    Set  the  font  to  the  default, i.e., that given by the
                    *VT100.font resource.
             Unreadable (font1)
                    Set the font to that given by the *VT100.font1  resource.
             Tiny (font2)
                    Set  the font to that given by the *VT100.font2 resource.
             Small (font3)
                    Set the font to that given by the *VT100.font3  resource.
             Medium (font4)
                    Set  the font to that given by the *VT100.font4 resource.
             Large (font5)
                    Set the font to that given by the *VT100.font5  resource.
             Huge (font6)
                    Set  the font to that given by the *VT100.font6 resource.
             Escape Sequence
                    This allows you to set the font last specified by the Set
                    Font  escape  sequence  (see  the  document Xterm Control
                    Sequences).
             Selection (fontsel)
                    This allows you to set the  font  specified  the  current
                    selection  as  a  font  name (if the PRIMARY selection is
                    owned).
      The second section allows you to modify the way it is displayed:
             Bold Fonts
                    This is  normally  checked  (enabled).   When  unchecked,
                    xterm  will  not use bold fonts.  The setting corresponds
                    to the allowBoldFonts resource.
             Line-Drawing Characters (font-linedrawing)
                    When set, tells xterm to draw its own line-drawing  char-
                    acters.   Otherwise  it  relies  on  the  font containing
                    these.  Compare to the forceBoxChars resource.
             Packed Font (font-packed)
                    When set, tells xterm to use the minimum glyph-width from
                    a font when displaying characters.  Use the maximum width
                    (unchecked) to help display proportional fonts.   Compare
                    to the forcePackedFont resource.
             Doublesized Characters (font-doublesize)
                    When set, xterm may ask the font server to produce scaled
                    versions of the normal font, for VT102 double-size  char-
                    acters.
      The third section allows you to modify the way it is specified:
             TrueType Fonts (render-font)
                    If  the  renderFont and corresponding resources were set,
                    this is a further control whether xterm will actually use
                    the Xft library calls to obtain a font.
             UTF-8 Encoding (utf8-mode)
                    This  controls  whether  xterm  uses  UTF-8  encoding  of
                    input/output.  It is  useful  for  temporarily  switching
                    xterm  to display text from an application which does not
                    follow the locale settings.  It corresponds to  the  utf8
                    resource.
             UTF-8 Fonts (utf8-fonts)
                    This controls whether xterm uses UTF-8 fonts for display.
                    It is useful for temporarily switching xterm  to  display
                    text from an application which does not follow the locale
                    settings.  It combines the utf8 and utf8Fonts  resources.
             UTF-8 Titles (utf8-titles)
                    This  controls  whether  xterm accepts UTF-8 encoding for
                    title control sequences.  It corresponds to the utf8Fonts
                    resource.
                    Initially the checkmark is set according to both the utf8
                    and utf8Fonts resource values.  If the latter is  set  to
                    "always",  the checkmark is disabled.  Likewise, if there
                    are no fonts given in the  utf8Fonts  subresources,  then
                    the checkmark also is disabled.
                    The standard XTerm app-defaults file defines both sets of
                    fonts, while the UXTerm app-defaults  file  defines  only
                    one  set.  assuming the standard app-defaults files, this
                    command will launch xterm able to  switch  between  UTF-8
                    and ISO-8859-1 encoded fonts:
                        uxterm -class XTerm
      The  fourth  section allows you to enable or disable special operations
      which can be controlled by writing escape sequences  to  the  terminal.
      These are disabled if the SendEvents feature is enabled:
             Allow Color Ops (allow-font-ops)
                    This  corresponds  to the allowColorOps resource.  Enable
                    or disable control sequences that set/query the colors.
             Allow Font Ops (allow-font-ops)
                    This corresponds to the allowFontOps resource.  Enable or
                    disable control sequences that set/query the font.
             Allow Tcap Ops (allow-tcap-ops)
                    Enable or disable control sequences that query the termi-
                    nal's notion of its function-key strings, as  termcap  or
                    terminfo  capabilities.   This corresponds to the allowT-
                    capOps resource.
             Allow Title Ops (allow-title-ops)
                    Enable or disable control sequences that modify the  win-
                    dow title or icon name.  This corresponds to the allowTi-
                    tleOps resource.
             Allow Window Ops (allow-window-ops)
                    Enable or disable extended window control  sequences  (as
                    used  in dtterm).  This corresponds to the allowWindowOps
                    resource.
  TEK Options
      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.
             Large Characters (tektextlarge)
             #2 Size Characters (tektext2)
             #3 Size Characters (tektext3)
             Small Characters (tektextsmall)
      Commands:
             PAGE (tekpage)
                    Clear the Tektronix window.
             RESET (tekreset)
             COPY (tekcopy)
      Windows:
             Show VT Window (vtshow)
             Switch to VT Mode (vtmode)
             Hide Tek Window (tekhide)

[править] SECURITY

      X environments differ in their security consciousness.
      o   Most  servers, run under xdm, are capable of using a "magic cookie"
          authorization scheme that can provide a reasonable level  of  secu-
          rity  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, it is possible that someone can  run
          an  application  which uses the basic services of the X protocol to
          snoop on your activities, potentially  capturing  a  transcript  of
          everything you type at the keyboard.
      o   Any process which has access to your X display can manipulate it in
          ways that you might not anticipate, even redirecting your  keyboard
          to  itself  and sending events to your application's windows.  This
          is true even with the "magic cookie" authorization  scheme.   While
          the allowSendEvents provides some protection against rogue applica-
          tions tampering with your programs, guarding against a  snooper  is
          harder.
      o   The  X input extension for instance allows an application to bypass
          all of the other (limited)  authorization  and  security  features,
          including the GrabKeyboard protocol.
      o   The  possibility  of an application spying on your keystrokes 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 bet-
          ter authorization mechanism than is provided by X.
      Subject to all of these caveats, a simple mechanism exists for protect-
      ing keyboard input in xterm.
      The  xterm  menu  (see  MENUS  above)  contains a Secure Keyboard entry
      which, when enabled, attempts to ensure  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.
      o   This ensures that you know which  window  is  accepting  your  key-
          strokes.
      o   It  cannot  ensure that there are no processes which have access to
          your X display that might be observing the keystrokes as well.
      Only one X client at a time can grab 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  dis-
      plays  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 win-
      dow 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 fore-
      ground and background colors will be switched back and  the  bell  will
      sound in warning.

[править] CHARACTER CLASSES

      Clicking  the  left  pointer  button twice in rapid succession (double-
      clicking) causes all characters of the same class (e.g., letters, white
      space, punctuation) to be selected as a "word".  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, 215,
          /*  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, 247,
          /*  o/   u`   u'   u^   u:   y'    P   y: */
              48,  48,  48,  48,  48,  48,  48,  48};
      For example, the string "33:48,37:48,45-47:48,38:48" 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.

[править] ACTIONS

      It is possible to rebind keys  (or  sequences  of  keys)  to  arbitrary
      strings for input, by changing the translations resources for the vt100
      or tek4014 widgets.  Changing  the  translations  resource  for  events
      other than key and button events is not expected, and will cause unpre-
      dictable behavior.  The following actions are provided for  use  within
      the vt100 or tek4014 translations resources:
      allow-color-ops(on/off/toggle)
              This  action  set  or toggles the allowColorOps resource and is
              also invoked by the allow-color-ops entry in fontMenu.
      allow-font-ops(on/off/toggle)
              This action set or toggles the  allowFontOps  resource  and  is
              also invoked by the allow-font-ops entry in fontMenu.
      allow-send-events(on/off/toggle)
              This  action set or toggles the allowSendEvents resource and is
              also invoked by the allowsends entry in mainMenu.
      allow-tcap-ops(on/off/toggle)
              This action set or toggles the  allowTcapOps  resource  and  is
              also invoked by the allow-tcap-ops entry in fontMenu.
      allow-title-ops(on/off/toggle)
              This  action  set  or toggles the allowTitleOps resource and is
              also invoked by the allow-title-ops entry in fontMenu.
      allow-window-ops(on/off/toggle)
              This action set or toggles the allowWindowOps resource  and  is
              also invoked by the allow-window-ops entry in fontMenu.
      alt-sends-escape()
              This action toggles the state of the altSendsEscape resource.
      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.
      copy-selection(destname [, ...])
              This  action  puts  the currently selected text into all of the
              selections or cutbuffers specified by destname.  Unlike select-
              end,  it does not send a mouse position or otherwise modify the
              internal selection state.
      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.
      dabbrev-expand()
              Expands the word before cursor by searching  in  the  preceding
              text  on  the  screen  and  in  the scrollback buffer for words
              starting with that  abbreviation.   Repeating  dabbrev-expand()
              several times in sequence searches for an alternative expansion
              by looking farther back.  Lack of more matches is signaled by a
              beep().  Attempts to expand an empty word (i.e., when cursor is
              preceded by a space) yield  successively  all  previous  words.
              Consecutive identical expansions are ignored.  The word here is
              defined as a sequence of non-whitespace characters.  This  fea-
              ture  partially emulates the behavior of "dynamic abbreviation"
              expansion in Emacs (bound there to M-/).  Here  is  a  resource
              setting for xterm which will do the same thing:
                  *VT100*translations:    #override \n\
                          Meta <KeyPress> /:dabbrev-expand()


      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 echo-
              ing the event's position (i.e., character line and  column)  in
              the following format:
                      ^X ESC G <line+" "> <col+" ">
      fullscreen()
              Asks the window manager to change the window to full-screen.
      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 charac-
              ter or string associated with the key that was  pressed.   Only
              single-byte  values  are  treated  specially.  The exact action
              depends on the value of the altSendsEscape  and  the  metaSend-
              sEscape  and  the eightBitInput resources.  The metaSendsEscape
              resource is tested first.  See the eightBitInput resource for a
              full discussion.
              The  term "eight-bit" is misleading: xterm checks if the key is
              in the range 128 to 255 (the eighth bit is set).  If the  value
              is  in  that range, depending on the resource values, xterm may
              then do one of the following:
              o   add 128 to the value, setting its eighth bit,
              o   send an ESC byte before the key, or
              o   send the key unaltered.
      exec-formatted(format, sourcename [, ...])
              Execute an external command, using the  current  selection  for
              part  of the command's parameters.  The first parameter, format
              gives the basic command.   Succeeding  parameters  specify  the
              selection source as in insert-selection.
              The format parameter allows these substitutions:
              %%   inserts a "%".
              %P   the  screen-position  at  the beginning of the highlighted
                   region, as a semicolon-separated pair  of  integers  using
                   the values that the CUP control sequence would use.
              %p   the screen-position after the beginning of the highlighted
                   region, using the same convention as "%P".
              %S   the length of the string that "%s" would insert.
              %s   the content of the selection, unmodified.
              %T   the length of the string that "%t" would insert.
              %t   the selection, trimmed of leading/trailing whitespace, and
                   newlines changed to single spaces.
              %V   the  video  attributes at the beginning of the highlighted
                   region, as a semicolon-separated list  of  integers  using
                   the values that the SGR control sequence would use.
              %v   the  video  attributes  after  the  end of the highlighted
                   region, using the same convention as "%V".
              After constructing the command-string, xterm forks a subprocess
              and  executes  the  command,  which  completes independently of
              xterm.
      exec-selectable(format, onClicks)
              Execute an external command, using data copied from the  screen
              for  part  of  the  command's parameters.  The first parameter,
              format gives the basic command as in exec-formatted.  The  sec-
              ond  parameter  specifies the method for copying the data as in
              the onClicks resource.
      insert-formatted(format, sourcename [, ...])
              Insert the current selection or data related to it,  formatted.
              The  first parameter, format gives the template for the data as
              in exec-formatted.  Succeeding parameters specify the selection
              source as in insert-selection.
      insert-selectable(format, onClicks)
              Insert  data  copied  from  the  screen,  formatted.  The first
              parameter, format gives the template for the data as  in  exec-
              formatted.  The second parameter specifies the method for copy-
              ing the data as in the onClicks resource.
      insert-selection(sourcename [, ...])
              This action inserts the string found in the selection  or  cut-
              buffer  indicated  by  sourcename.   Sources are checked in the
              order given (case is significant) until  one  is  found.   Com-
              monly-used  selections  include:  PRIMARY, SECONDARY, and CLIP-
              BOARD.  Cut buffers are  typically  named  CUT_BUFFER0  through
              CUT_BUFFER7.
      insert-seven-bit()
              This  action  is a synonym for insert() The term "seven-bit" is
              misleading: it only implies that xterm does not try to add  128
              to the key's value as in insert-eight-bit().
      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  signifi-
              cant).   The name None restores the original translation table.
      larger-vt-font()
              Set the font to the next larger one, based on the  font  dimen-
              sions.  See also set-vt-font().
      load-vt-fonts(name[,class])
              Load fontnames from the given subresource name and class.  That
              is, load the "*VT100.name.font", resource as "*VT100.font" etc.
              If no name is given, the original set of fontnames is restored.
              Unlike set-vt-font(), this does  not  affect  the  escape-  and
              select-fonts, since those are not based on resource values.  It
              does affect the fonts loosely  organized  under  the  "Default"
              menu  entry,  including  font, boldFont, wideFont and wideBold-
              Font.
      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(printer-flags)
              This  action prints the window and is also invoked by the print
              entry in mainMenu.
              The action accepts optional parameters, which temporarily over-
              ride  resource  settings.   The  parameter  values  are matched
              ignoring case:
              noFormFeed
                   no form feed will be sent at the  end  of  the  last  line
                   printed (i.e., printerFormFeed is ``false).
              FormFeed
                   a  form  feed  will  be  sent  at the end of the last line
                   printed (i.e., printerFormFeed is ``true).
              noNewLine
                   no newline will be sent  at  the  end  of  the  last  line
                   printed,  and  wrapped  lines  will  be combined into long
                   lines (i.e., printerNewLine is ``false).
              NewLine
                   a newline will be  sent  at  the  end  of  the  last  line
                   printed,  and  each line will be limited (by adding a new-
                   line)  to  the  screen  width  (i.e.,  printerNewLine   is
                   ``true).
              noAttrs
                   the  page  is  printed  without attributes (i.e., printAt-
                   tributes is ``0).
              monoAttrs
                   the page is printed  with  monochrome  (vt220)  attributes
                   (i.e., printAttributes is ``1).
              colorAttrs
                   the  page  is  printed  with  ANSI color attributes (i.e.,
                   printAttributes is ``2).
      print-everything(printer-flags)
              This action sends the entire text history, in addition  to  the
              text currently visible, to the program given in the printerCom-
              mand resource.  It allows the same optional parameters  as  the
              print  action.  With a suitable printer command, the action can
              be used to load the text history in an editor.
      print-immediate()
              Sends the text of the current window directly  to  a  file,  as
              specified  by  the  printFileImmediate,  printModeImmediate and
              printOptsImmediate resources.
      print-on-error()
              Toggles a flag telling xterm that if it exits with an X  error,
              to  send  the text of the current window directly to a file, as
              specified by the printFileXError, printModeXError and printOpt-
              sXError resources.
      print-redir()
              This  action  toggles  the  printerControlMode between 0 and 2.
              The corresponding popup menu entry is useful for switching  the
              printer off if you happen to change your mind after deciding to
              print random binary files on the terminal.
      quit()  This action sends a SIGHUP to the subprogram and exits.  It  is
              also invoked by the quit entry in mainMenu.
      readline-button()
              Supports the optional readline feature by echoing repeated cur-
              sor forward or backward control  sequences  on  button  release
              event,  to  request that the host application update its notion
              of the cursor's position to match the button event.
      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  visi-
              ble.
              The  count argument indicates the number of units (which may be
              page, halfpage, pixel, or line) by which to scroll.
              An adjustment can be specified for these values by appending  a
              "+" or "-" sign followed by a number, e.g., page-2 to specify 2
              lines less than a page.
              If the third parameter mouse is given, the  action  is  ignored
              when mouse reporting is enabled.
      scroll-forw(count [,units [,mouse] ])
              This action is similar to scroll-back except that it scrolls in
              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.
      scroll-lock(on/off/toggle)
              This action toggles internal state which  tells  xterm  whether
              Scroll Lock is active, subject to the allowScrollLock resource.
      select-cursor-end(destname [, ...])
              This action is similar to select-end except that it  should  be
              used with select-cursor-start.
      select-cursor-extend()
              This  action  is similar to select-extend 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.  It also  sends
              a  mouse  position  and updates the internal selection state to
              reflect the end of the selection process.
      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 selec-
              tion, without affecting the selection mode.
      select-start()
              This action begins text selection at the current pointer  loca-
              tion.  See the section on POINTER USAGE for information on mak-
              ing selections.
      send-signal(signame)
              This action sends the signal named by signame to the xterm sub-
              process  (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-8-bit-control(on/off/toggle)
              This  action  toggles  the eightBitControl resource and is also
              invoked from the 8-bit-control entry in vtMenu.
      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-bellIsUrgent(on/off/toggle)
              This  action  toggles  the  bellIsUrgent  resource  and is also
              invoked by the bellIsUrgent 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-font-packed(on/off/toggle)
              This action toggles the forcePackedFont's resource  which  con-
              trols  use of the font's minimum or maximum glyph width.  It is
              also invoked by the font-packed entry in fontMenu.
      set-keep-selection(on/off/toggle)
              This action toggles the  keepSelection  resource  and  is  also
              invoked by the keepSelection entry in vtMenu.
      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.
      set-num-lock()
              This action toggles the state of the numLock resource.
      set-pop-on-bell(on/off/toggle)
              This action toggles the popOnBell resource and is also  invoked
              by the poponbell entry in vtMenu.
      set-render-font(on/off/toggle)
              This action toggles the renderFont resource and is also invoked
              by the render-font entry in fontMenu.
      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-select(on/off/toggle)
              This  action toggles the selectToClipboard resource and is also
              invoked by the selectToClipboard 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  tek-
              textsmall according to the argument.  It is also invoked 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 tek-
              mode 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-toolbar(on/off/toggle)
              This  action toggles the toolbar feature and is also invoked by
              the toolbar entry in mainMenu.
      set-utf8-mode(on/off/toggle)
              This action toggles the utf8 resource and is  also  invoked  by
              the utf8-mode entry in fontMenu.
      set-utf8-title(on/off/toggle)
              This  action toggles the utf8Title resource and is also invoked
              by the utf8-title entry in fontMenu.
      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  tek-
              Menu.
      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 and bold fonts that  have  been  set
                     through  escape  codes  (or  specified as the second and
                     third 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.
              If  xterm  is  configured  to support wide characters, an addi-
              tional two optional parameters are recognized for the  e  argu-
              ment: wide font and wide bold font.
      smaller-vt-font()
              Set  the font to the next smaller one, based on the font dimen-
              sions.  See also set-vt-font().
      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.
      spawn-new-terminal(params)
              Spawn a new xterm process.  This is available on systems  which
              have a modern version of the process filesystem, e.g., "/proc",
              which xterm can read.
              Use the "cwd" process entry, e.g.,  /proc/12345/cwd  to  obtain
              the  working  directory  of the process which is running in the
              current xterm.
              On  systems  which  have  the  "exe"   process   entry,   e.g.,
              /proc/12345/exe,  use  this  to  obtain  the actual executable.
              Otherwise, use the $PATH variable to find xterm.
              If parameters are given in the action, pass  them  to  the  new
              xterm process.
      start-extend()
              This  action  is similar to select-start except that the selec-
              tion is extended to the current pointer location.
      start-cursor-extend()
              This action is similar to select-extend except that the  selec-
              tion 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  white-
              space  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 cur-
              rent window contents to a file in the current directory  begin-
              ning  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  echo-
              ing 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 use the SELECT token, which is
      set by the selectToClipboard resource:
                    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(SELECT, CUT_BUFFER0) \n\
                   Shift <KeyPress> Insert:insert-selection(SELECT, CUT_BUFFER0) \n\
                           Alt <Key>Return:fullscreen() \n\
                  <KeyRelease> Scroll_Lock:scroll-lock() \n\
              Shift~Ctrl <KeyPress> KP_Add:larger-vt-font() \n\
              Shift Ctrl <KeyPress> KP_Add:smaller-vt-font() \n\
              Shift <KeyPress> KP_Subtract:smaller-vt-font() \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(SELECT, 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(SELECT, CUT_BUFFER0) \n\
                                 <BtnDown>:ignore()
      The  default  bindings  for  the scrollbar widget are separate from the
      VT100 widget:
                                <Btn5Down>: StartScroll(Forward) \n\
                                <Btn1Down>: StartScroll(Forward) \n\
                                <Btn2Down>: StartScroll(Continuous) MoveThumb() NotifyThumb() \n\
                                <Btn3Down>: StartScroll(Backward) \n\
                                <Btn4Down>: StartScroll(Backward) \n\
                                <Btn2Motion>: MoveThumb() NotifyThumb() \n\
                                <BtnUp>:    NotifyScroll(Proportional) EndScroll()
      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)
      Here is an example which uses shifted select/paste to copy to the clip-
      board,  and  unshifted select/paste for the primary selection.  In each
      case, a (different) cut buffer is  also  a  target  or  source  of  the
      select/paste  operation.  It is important to remember however, that cut
      buffers store data in ISO-8859-1 encoding, while selections  can  store
      data  in  a  variety  of  formats  and encodings.  While xterm owns the
      selection, it highlights it.  When it loses the selection,  it  removes
      the  corresponding  highlight.  But you can still paste from the corre-
      sponding cut buffer.
          *VT100*translations:    #override \n\
              ~Shift~Ctrl<Btn2Up>: insert-selection(PRIMARY, CUT_BUFFER0) \n\
              Shift~Ctrl<Btn2Up>:  insert-selection(CLIPBOARD, CUT_BUFFER1) \n\
              ~Shift<BtnUp>:       select-end(PRIMARY, CUT_BUFFER0) \n\
              Shift<BtnUp>:        select-end(CLIPBOARD, CUT_BUFFER1)
      Below is a sample of how 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)
      Some  people  prefer  using  the  left  pointer button for dragging the
      scrollbar thumb.  That  can  be  setup  by  altering  the  translations
      resource, e.g.,
          *VT100.scrollbar.translations:#override \n\
               <Btn5Down>:StartScroll(Forward) \n\
               <Btn1Down>:StartScroll(Continuous) MoveThumb() NotifyThumb() \n\
               <Btn4Down>:StartScroll(Backward) \n\
               <Btn1Motion>:MoveThumb() NotifyThumb() \n\
               <BtnUp>:  NotifyScroll(Proportional) EndScroll()


[править] CONTROL SEQUENCES AND KEYBOARD

      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 Tek-
      tronix terminals, or from more widely used standards such as  ISO-6429.

[править] ENVIRONMENT

      Xterm sets several environment variables:
      DISPLAY
           is  the  display name, pointing to the X server (see DISPLAY NAMES
           in X(7)).
      TERM is set according to the termcap (or terminfo) entry  which  it  is
           using as a reference.
      WINDOWID
           is set to the X window id number of the xterm window.
      XTERM_LOCALE
           shows  the  locale which was used by xterm on startup.  Some shell
           initialization scripts may set a different locale.
      XTERM_SHELL
           is set to the pathname of the program which is  invoked.   Usually
           that is a shell program, e.g., /bin/sh.  Since it is not necessar-
           ily a shell program however, it is distinct from "SHELL".
      XTERM_VERSION
           is set to the string displayed by the -version  option.   That  is
           normally  an  identifier  for the X Window libraries used to build
           xterm, followed by xterm's patch number in parenthesis.  The patch
           number  is  also  part  of  the  response  to  a  Secondary Device
           Attributes (DA) control sequence (see Xterm Control Sequences).
      Depending on your system configuration, xterm may also set the  follow-
      ing:
      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.  It is also set if you
           provide the shell name as the optional parameter.
      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.

[править] FILES

      The actual pathnames given may differ on your system.
      /etc/utmp
           the system logfile, which records user logins.
      /var/log/wtmp
           the system logfile, which records user logins and logouts.
      /usr/local/lib/X11/app-defaults/XTerm
           the xterm default application resources.
      /usr/local/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 use  this  resource  file
           rather  than /usr/local/lib/X11/app-defaults/XTerm.  If you do not
           do this, xterm uses its compiled-in default resource settings  for
           colors.

[править] ERROR MESSAGES

      Most of the fatal error messages from xterm use the following format:
             xterm: Error XXX, errno YYY: ZZZ
      The  XXX  codes  (which  are used by xterm as its exit-code) are listed
      below, with a brief explanation.
      1    is used for miscellaneous errors, usually accompanied  by  a  spe-
           cific message,
      11   ERROR_FIONBIO
           main: ioctl() failed on FIONBIO
      12   ERROR_F_GETFL
           main: ioctl() failed on F_GETFL
      13   ERROR_F_SETFL
           main: ioctl() failed on F_SETFL
      14   ERROR_OPDEVTTY
           spawn: open() failed on /dev/tty
      15   ERROR_TIOCGETP
           spawn: ioctl() failed on TIOCGETP
      17   ERROR_PTSNAME
           spawn: ptsname() failed
      18   ERROR_OPPTSNAME
           spawn: open() failed on ptsname
      19   ERROR_PTEM
           spawn: ioctl() failed on I_PUSH/"ptem"
      20   ERROR_CONSEM
           spawn: ioctl() failed on I_PUSH/"consem"
      21   ERROR_LDTERM
           spawn: ioctl() failed on I_PUSH/"ldterm"
      22   ERROR_TTCOMPAT
           spawn: ioctl() failed on I_PUSH/"ttcompat"
      23   ERROR_TIOCSETP
           spawn: ioctl() failed on TIOCSETP
      24   ERROR_TIOCSETC
           spawn: ioctl() failed on TIOCSETC
      25   ERROR_TIOCSETD
           spawn: ioctl() failed on TIOCSETD
      26   ERROR_TIOCSLTC
           spawn: ioctl() failed on TIOCSLTC
      27   ERROR_TIOCLSET
           spawn: ioctl() failed on TIOCLSET
      28   ERROR_INIGROUPS
           spawn: initgroups() failed
      29   ERROR_FORK
           spawn: fork() failed
      30   ERROR_EXEC
           spawn: exec() failed
      32   ERROR_PTYS
           get_pty: not enough ptys
      34   ERROR_PTY_EXEC
           waiting for initial map
      35   ERROR_SETUID
           spawn: setuid() failed
      36   ERROR_INIT
           spawn: can't initialize window
      46   ERROR_TIOCKSET
           spawn: ioctl() failed on TIOCKSET
      47   ERROR_TIOCKSETC
           spawn: ioctl() failed on TIOCKSETC
      49   ERROR_LUMALLOC
           luit: command-line malloc failed
      50   ERROR_SELECT
           in_put: select() failed
      54   ERROR_VINIT
           VTInit: can't initialize window
      57   ERROR_KMMALLOC1
           HandleKeymapChange: malloc failed
      60   ERROR_TSELECT
           Tinput: select() failed
      64   ERROR_TINIT
           TekInit: can't initialize window
      71   ERROR_BMALLOC2
           SaltTextAway: malloc() failed
      80   ERROR_LOGEXEC
           StartLog: exec() failed
      83   ERROR_XERROR
           xerror: XError event
      84   ERROR_XIOERROR
           xioerror: X I/O error
      85   ERROR_ICEERROR
           ICE I/O error
      90   ERROR_SCALLOC
           Alloc: calloc() failed on base
      91   ERROR_SCALLOC2
           Alloc: calloc() failed on rows
      102  ERROR_SAVE_PTR
           ScrnPointers: malloc/realloc() failed
      121  ERROR_MMALLOC
           my_memmove: malloc/realloc failed

[править] BUGS

      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.
      When  connected to an input method, it is possible for xterm to hang if
      the XIM server is suspended or killed.
      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 do not 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.

[править] SEE ALSO

      resize(1), luit(1), uxterm(1), X(7), pty(4), tty(4)
      Xterm Control Sequences (this is the file ctlseqs.ms).

[править] AUTHORS

      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,  Stephen P. Wall, David Wexelblat, and Thomas Dickey (invisible-
      island.net).
                               X Window System                       XTERM(1)
Источник — «http://xgu.ru/wiki/man/orig/xterm»