etc/TERMS

   1 Copyright (C) 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2007
   2 Free Software Foundation, Inc.
   3 See the end of the file for copying permissions.
   4
   5 This file describes what you must or might want to do to termcap entries
   6 to make terminals work properly and efficiently with Emacs.  Information
   7 on likely problems with specific types of terminals appears at the end
   8 of the file.
   9
  10 *** What you want in a terminal ***
  11
  12 Vital
  13 1. Easy to compute suitable padding for.
  14 2. Never ever sends ^S/^Q unless you type them, at least in one mode.
  15
  16 Nice for speed
  17 1. Supports insert/delete of multiple lines in one command.
  18 2. Same for multiple characters, though doing them one by
  19 one is usually fast enough except on emulators running on
  20 machines with bitmap screens.
  21
  22 Nice for usability
  23 1. Considerably more than 24 lines.
  24 2. Meta key (shift-like key that controls the 0200 bit
  25 in every character you type).
  26
  27 *** New termcap strings ***
  28
  29 Emacs supports certain termcap strings that are not described in the
  30 4.2 manual but appear to be standard in system V.  The one exception
  31 is `cS', which I invented.
  32
  33 `AL'    insert several lines.  Takes one parameter, the number of
  34         lines to be inserted.  You specify how to send this parameter
  35         using a %-construct, just like the cursor positions in the `cm'
  36         string.
  37
  38 `DL'    delete several lines.  One parameter.
  39
  40 `IC'    insert several characters.  One parameter.
  41
  42 `DC'    delete several characters.  One parameter.
  43
  44 `rp'    repeat a character.  Takes two parameters, the character
  45         to be repeated and the number of times to repeat it.
  46         Most likely you will use `%.' for sending the character
  47         to be repeated.  Emacs interprets a padding spec with a *
  48         as giving the amount of padding per repetition.
  49
  50         WARNING: Many terminals have a command to repeat the
  51         *last character output* N times.  This means that the character
  52         will appear N+1 times in a row when the command argument is N.
  53         However, the `rp' string's parameter is the total number of
  54         times wanted, not one less.  Therefore, such repeat commands
  55         may be used in an `rp' string only if you use Emacs's special
  56         termcap operator `%a-c\001' to subtract 1 from the repeat count
  57         before substituting it into the string.  It is probably safe
  58         to use this even though the Unix termcap does not accept it
  59         because programs other than Emacs probably won't look for `rp'
  60         anyway.
  61
  62 `cs'    set scroll region.  Takes two parameters, the vertical
  63         positions of the first line to include in the scroll region
  64         and the last line to include in the scroll region.
  65         Both parameters are origin-zero.  The effect of this
  66         should be to cause a following insert-line or delete-line
  67         not to move lines below the bottom of the scroll region.
  68
  69         This is not the same convention that Emacs version 16 used.
  70         That is because I was led astray by unclear documentation
  71         of the meaning of %i in termcap strings.  Since the termcap
  72         documentation for `cs' is also unclear, I had to deduce the
  73         correct parameter conventions from what would make the VT-100's
  74         `cs' string work properly.  From an incorrect assumption about
  75         %i, I reached an incorrect conclusion about `cs', but the result
  76         worked correctly on the VT100 and ANSII terminals.  In Emacs
  77         version 17, both `cs' and %i work correctly.
  78
  79         The version 16 convention was to pass, for the second parameter,
  80         the line number of the first line beyond the end of the
  81         scroll region.
  82
  83 `cS'    set scroll region.  Differs from `cs' in taking parameters
  84         differently.  There are four parameters:
  85         1. Total number of lines on the screen.
  86         2. Number of lines above desired scroll region.
  87         3. Number of lines below (outside of) desired scroll region.
  88         4. Total number of lines on the screen, like #1.
  89         This is because an Ambassador needs the parameters like this.
  90
  91 `cr', `do', `le'
  92         Emacs will not attempt to use ^M, ^J or ^H for cursor motion
  93         unless these capabilities are present and say to use those
  94         characters.
  95
  96 `km'    Says the terminal has a Meta key.
  97
  98 Defining these strings is important for getting maximum performance
  99 from your terminal.
 100
 101 Make sure that the `ti' string sets all modes needed for editing
 102 in Emacs.  For example, if your terminal has a mode that controls
 103 wrap at the end of the line, you must decide whether to specify
 104 the `am' flag in the termcap entry; whichever you decide, the `ti'
 105 string should contain commands to set the mode that way.
 106 (Emacs also sends the `vs' string after the `ti' string.
 107 You can put the mode-setting commands in either one of them.)
 108
 109 *** Specific Terminal Types ***
 110
 111 Watch out for termcap entries for Ann Arbor Ambassadors that
 112 give too little padding for clear-screen.  7.2 msec per line is right.
 113 These are the strings whose padding you probably should change:
 114     :al=1*\E[L:dl=1*\E[M:cd=7.2*\E[J:cl=7.2*\E[H\E[J:
 115 I have sometimes seen `\E[2J' at the front of the `ti' string;
 116 this is a clear-screen, very slow, and it can cause you to get
 117 Control-s sent by the terminal at startup.  I recommend removing
 118 the `\E[2J' from the `ti' string.
 119 The `ti' or `vs' strings also usually need stuff added to them, such as
 120     \E[>33;52;54h\E[>30;37;38;39l
 121 You might want to add the following to the `te' or `ve' strings:
 122     \E[>52l\E[>37h
 123 The following additional capabilities will improve performance:
 124     :AL=1*\E[%dL:DL=1*\E[%dM:IC=4\E[%d@:DC=4\E[%dP:rp=1*%.\E[%a-c\001%db:
 125 If you find that the Meta key does not work, make sure that
 126     :km:
 127 is present in the termcap entry.
 128
 129 Watch out for termcap entries for VT100's that fail to specify
 130 the `sf' string, or that omit the padding needed for the `sf' and `sr'
 131 strings (2msec per line affected).  What you need is
 132     :sf=2*^J:sr=2*\EM:cs=\E[%i%d;%dr:
 133
 134 The Concept-100 and Concept-108 have many modes that `ti' strings
 135 often fail to initialize.  If you have problems on one of these
 136 terminals, that is probably the place to fix them.  These terminals
 137 can support an `rp' string.
 138
 139 Watch out on HP terminals for problems with standout disappearing on
 140 part of the mode line.  These problems are due to the absence of
 141 :sg#0: which some HP terminals need.
 142
 143 The vi55 is said to require `ip=2'.
 144
 145 The Sun console should have these capabilities for good performance.
 146            :AL=\E[%dL:DL=\E[%dM:IC=\E[%d@:DC=\E[%dP:
 147
 148 The vt220 needs to be set to vt220 mode, 7 bit, space parity
 149 in order to work fully with TERM=vt220.
 150
 151 If you are using a LAT terminal concentrator, you need to issue these
 152 commands to turn off flow control:
 153
 154     set port flow control disable
 155     define port flow control disable
 156
 157 On System V, in the terminfo database, various terminals may have
 158 the `xt' flag that should not have it.  `xt' should be present only
 159 for the Teleray 1061 or equivalent terminal.
 160
 161 In particular, System V for the 386 often has `xt' for terminal type
 162 AT386 or AT386-M, which is used for the console.  You should delete
 163 this flag.  Here is how:
 164
 165 You can get a copy of the terminfo "source" for at386 using the
 166 command: `infocmp at386 >at386.tic'.  Edit the file at386.tic and remove
 167 the `xt' flag.  Then compile the new entry with: `tic at386.tic'.
 168
 169 It is also reported that these terminal types sometimes have the wrong
 170 reverse-scroll string.  It should be \E[T, but sometimes is given as \E[S.
 171
 172 Here is what watserv1!maytag!focsys!larry recommends for these terminals:
 173
 174 # This copy of the terminfo description has been fixed.
 175 # The suggestions came from a number of usenet postings.
 176 #
 177 # Intel AT/386 for color card with monochrome display
 178 #
 179 AT386-M|at386-m|386AT-M|386at-m|at/386 console,
 180         am, bw, eo, xon,
 181         cols#80, lines#25,
 182         acsc=``a1fxgqh0jYk?lZm@nEooppqDrrsstCu4vAwBx3yyzz{{||}}~~,
 183         bel=^G, blink=\E[5m, bold=\E[1m, cbt=\E[Z,
 184         clear=\E[2J\E[H,
 185         cr=\r, cub=\E[%p1%dD, cub1=\E[D, cud=\E[%p1%dB,
 186         cud1=\E[B, cuf=\E[%p1%dC, cuf1=\E[C,
 187         cup=\E[%i%p1%02d;%p2%02dH, cuu=\E[%p1%dA, cuu1=\E[A,
 188         dch=\E[%p1%dP, dch1=\E[P, dl=\E[%p1%dM, dl1=\E[1M,
 189         ech=\E[%p1%dX,ed=\E[J, el=\E[K, el1=\E[1K\E[X, flash=^G, home=\E[H,
 190         hpa=\E[%i%p1%dG, ich=\E[%p1%d@, ich1=\E[1@, il=\E[%p1%dL, il1=\E[1L,
 191         ind=\E[S, indn=\E[%p1%dS, invis=\E[9m,
 192         is2=\E[0;10;38m, kbs=\b, kcbt=^], kclr=\E[2J,
 193         kcub1=\E[D, kcud1=\E[B, kcuf1=\E[C, kcuu1=\E[A,
 194         kdch1=\E[P, kend=\E[Y, kf1=\EOP, kf10=\EOY, kf11=\EOZ,
 195         kf12=\EOA, kf2=\EOQ, kf3=\EOR, kf4=\EOS, kf5=\EOT,
 196         kf6=\EOU, kf7=\EOV, kf8=\EOW, kf9=\EOX, khome=\E[H,
 197         kich1=\E[@, knp=\E[U, kpp=\E[V, krmir=\E0, rev=\E[7m, ri=\E[T,
 198         rin=\E[%p1%dT, rmacs=\E[10m, rmso=\E[m, rmul=\E[m,
 199         sgr=\E[10m\E[0%?%p1%p3%|%t;7%;%?%p2%t;4%;%?%p4%t;5%;%?%p6%t;1%;%?%p9%t;12%;%?%p7%t;9%;m,
 200         sgr0=\E[0;10m, smacs=\E[12m, smso=\E[7m, smul=\E[4m,
 201
 202 #
 203 # AT&T 386 color console
 204 #
 205 AT386|at386|386AT|386at|at/386 console,
 206         colors#8, ncv#3, pairs#64,
 207         is2=\E[0;10;39m,
 208         op=\E[0m,
 209         setb=\E[%?%p1%{0}%=%t40m
 210                 %e%p1%{1}%=%t44m
 211                 %e%p1%{2}%=%t42m
 212                 %e%p1%{3}%=%t46m
 213                 %e%p1%{4}%=%t41m
 214                 %e%p1%{5}%=%t45m
 215                 %e%p1%{6}%=%t43m
 216                 %e%p1%{7}%=%t47m%;,
 217         setf=\E[%?%p1%{0}%=%t30m
 218                 %e%p1%{1}%=%t34m
 219                 %e%p1%{2}%=%t32m
 220                 %e%p1%{3}%=%t36m
 221                 %e%p1%{4}%=%t31m
 222                 %e%p1%{5}%=%t35m
 223                 %e%p1%{6}%=%t33m
 224                 %e%p1%{6}%=%t33m
 225                 %e%p1%{7}%=%t37m%;,
 226         use=at386-m,
 227 #
 228 # Color console version that supports underline but maps blue
 229 # foreground color to cyan.
 230 #
 231 AT386-UL|at386-ul|386AT-UL|386at-ul|at/386 console,
 232         is2=\E[0;10;38m,
 233         use=at386,
 234
 235 \f
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 237
 238     This document is free software; you can redistribute it and/or modify
 239     it under the terms of the GNU General Public License as published by
 240     the Free Software Foundation; either version 2 of the License, or
 241     (at your option) any later version.
 242
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 245     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 247
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