Commit | Line | Data |
---|---|---|
a933dad1 DL |
1 | This file describes what you must or might want to do to termcap entries |
2 | to make terminals work properly and efficiently with Emacs. Information | |
3 | on likely problems with specific types of terminals appears at the end | |
4 | of the file. | |
5 | ||
6 | *** What you want in a terminal *** | |
7 | ||
8 | Vital | |
9 | 1. Easy to compute suitable padding for. | |
10 | 2. Never ever sends ^S/^Q unless you type them, at least in one mode. | |
11 | ||
12 | Nice for speed | |
13 | 1. Supports insert/delete of multiple lines in one command. | |
14 | 2. Same for multiple characters, though doing them one by | |
15 | one is usually fast enough except on emulators running on | |
16 | machines with bitmap screens. | |
17 | ||
18 | Nice for usability | |
19 | 1. Considerably more than 24 lines. | |
20 | 2. Meta key (shift-like key that controls the 0200 bit | |
21 | in every character you type). | |
22 | ||
23 | *** New termcap strings *** | |
24 | ||
25 | Emacs supports certain termcap strings that are not described in the | |
26 | 4.2 manual but appear to be standard in system V. The one exception | |
27 | is `cS', which I invented. | |
28 | ||
29 | `AL' insert several lines. Takes one parameter, the number of | |
30 | lines to be inserted. You specify how to send this parameter | |
31 | using a %-construct, just like the cursor positions in the `cm' | |
32 | string. | |
33 | ||
34 | `DL' delete several lines. One parameter. | |
35 | ||
36 | `IC' insert several characters. One parameter. | |
37 | ||
38 | `DC' delete several characters. One parameter. | |
39 | ||
40 | `rp' repeat a character. Takes two parameters, the character | |
41 | to be repeated and the number of times to repeat it. | |
42 | Most likely you will use `%.' for sending the character | |
43 | to be repeated. Emacs interprets a padding spec with a * | |
44 | as giving the amount of padding per repetition. | |
45 | ||
46 | WARNING: Many terminals have a command to repeat the | |
47 | *last character output* N times. This means that the character | |
48 | will appear N+1 times in a row when the command argument is N. | |
49 | However, the `rp' string's parameter is the total number of | |
50 | times wanted, not one less. Therefore, such repeat commands | |
51 | may be used in an `rp' string only if you use Emacs's special | |
52 | termcap operator `%a-c\001' to subtract 1 from the repeat count | |
53 | before substituting it into the string. It is probably safe | |
54 | to use this even though the Unix termcap does not accept it | |
55 | because programs other than Emacs probably won't look for `rp' | |
56 | anyway. | |
177c0ea7 | 57 | |
a933dad1 DL |
58 | `cs' set scroll region. Takes two parameters, the vertical |
59 | positions of the first line to include in the scroll region | |
60 | and the last line to include in the scroll region. | |
61 | Both parameters are origin-zero. The effect of this | |
62 | should be to cause a following insert-line or delete-line | |
63 | not to move lines below the bottom of the scroll region. | |
64 | ||
65 | This is not the same convention that Emacs version 16 used. | |
66 | That is because I was led astray by unclear documentation | |
67 | of the meaning of %i in termcap strings. Since the termcap | |
68 | documentation for `cs' is also unclear, I had to deduce the | |
69 | correct parameter conventions from what would make the VT-100's | |
70 | `cs' string work properly. From an incorrect assumption about | |
71 | %i, I reached an incorrect conclusion about `cs', but the result | |
72 | worked correctly on the VT100 and ANSII terminals. In Emacs | |
73 | version 17, both `cs' and %i work correctly. | |
74 | ||
75 | The version 16 convention was to pass, for the second parameter, | |
76 | the line number of the first line beyond the end of the | |
77 | scroll region. | |
78 | ||
79 | `cS' set scroll region. Differs from `cs' in taking parameters | |
80 | differently. There are four parameters: | |
81 | 1. Total number of lines on the screen. | |
82 | 2. Number of lines above desired scroll region. | |
83 | 3. Number of lines below (outside of) desired scroll region. | |
84 | 4. Total number of lines on the screen, like #1. | |
85 | This is because an Ambassador needs the parameters like this. | |
86 | ||
87 | `cr', `do', `le' | |
88 | Emacs will not attempt to use ^M, ^J or ^H for cursor motion | |
89 | unless these capabilities are present and say to use those | |
90 | characters. | |
91 | ||
92 | `km' Says the terminal has a Meta key. | |
93 | ||
94 | Defining these strings is important for getting maximum performance | |
95 | from your terminal. | |
96 | ||
97 | Make sure that the `ti' string sets all modes needed for editing | |
98 | in Emacs. For example, if your terminal has a mode that controls | |
99 | wrap at the end of the line, you must decide whether to specify | |
100 | the `am' flag in the termcap entry; whichever you decide, the `ti' | |
101 | string should contain commands to set the mode that way. | |
102 | (Emacs also sends the `vs' string after the `ti' string. | |
103 | You can put the mode-setting commands in either one of them.) | |
104 | ||
105 | *** Specific Terminal Types *** | |
106 | ||
107 | Watch out for termcap entries for Ann Arbor Ambassadors that | |
108 | give too little padding for clear-screen. 7.2 msec per line is right. | |
109 | These are the strings whose padding you probably should change: | |
110 | :al=1*\E[L:dl=1*\E[M:cd=7.2*\E[J:cl=7.2*\E[H\E[J: | |
111 | I have sometimes seen `\E[2J' at the front of the `ti' string; | |
112 | this is a clear-screen, very slow, and it can cause you to get | |
113 | Control-s sent by the terminal at startup. I recommend removing | |
114 | the `\E[2J' from the `ti' string. | |
115 | The `ti' or `vs' strings also usually need stuff added to them, such as | |
116 | \E[>33;52;54h\E[>30;37;38;39l | |
117 | You might want to add the following to the `te' or `ve' strings: | |
118 | \E[>52l\E[>37h | |
119 | The following additional capabilities will improve performance: | |
120 | :AL=1*\E[%dL:DL=1*\E[%dM:IC=4\E[%d@:DC=4\E[%dP:rp=1*%.\E[%a-c\001%db: | |
121 | If you find that the Meta key does not work, make sure that | |
122 | :km: | |
123 | is present in the termcap entry. | |
124 | ||
125 | Watch out for termcap entries for VT100's that fail to specify | |
126 | the `sf' string, or that omit the padding needed for the `sf' and `sr' | |
127 | strings (2msec per line affected). What you need is | |
128 | :sf=2*^J:sr=2*\EM:cs=\E[%i%d;%dr: | |
129 | ||
130 | The Concept-100 and Concept-108 have many modes that `ti' strings | |
131 | often fail to initialize. If you have problems on one of these | |
132 | terminals, that is probably the place to fix them. These terminals | |
133 | can support an `rp' string. | |
134 | ||
135 | Watch out on HP terminals for problems with standout disappearing on | |
136 | part of the mode line. These problems are due to the absence of | |
137 | :sg#0: which some HP terminals need. | |
138 | ||
139 | The vi55 is said to require `ip=2'. | |
140 | ||
141 | The Sun console should have these capabilities for good performance. | |
142 | :AL=\E[%dL:DL=\E[%dM:IC=\E[%d@:DC=\E[%dP: | |
143 | ||
144 | The vt220 needs to be set to vt220 mode, 7 bit, space parity | |
145 | in order to work fully with TERM=vt220. | |
146 | ||
147 | If you are using a LAT terminal concentrator, you need to issue these | |
148 | commands to turn off flow control: | |
149 | ||
150 | set port flow control disable | |
151 | define port flow control disable | |
152 | ||
153 | On System V, in the terminfo database, various terminals may have | |
154 | the `xt' flag that should not have it. `xt' should be present only | |
155 | for the Teleray 1061 or equivalent terminal. | |
156 | ||
157 | In particular, System V for the 386 often has `xt' for terminal type | |
158 | AT386 or AT386-M, which is used for the console. You should delete | |
159 | this flag. Here is how: | |
160 | ||
161 | You can get a copy of the terminfo "source" for at386 using the | |
162 | command: `infocmp at386 >at386.tic'. Edit the file at386.tic and remove | |
163 | the `xt' flag. Then compile the new entry with: `tic at386.tic'. | |
164 | ||
165 | It is also reported that these terminal types sometimes have the wrong | |
166 | reverse-scroll string. It should be \E[T, but sometimes is given as \E[S. | |
167 | ||
168 | Here is what watserv1!maytag!focsys!larry recommends for these terminals: | |
169 | ||
170 | # This copy of the terminfo description has been fixed. | |
171 | # The suggestions came from a number of usenet postings. | |
172 | # | |
173 | # Intel AT/386 for color card with monochrome display | |
174 | # | |
175 | AT386-M|at386-m|386AT-M|386at-m|at/386 console, | |
176 | am, bw, eo, xon, | |
177 | cols#80, lines#25, | |
178 | acsc=``a1fxgqh0jYk?lZm@nEooppqDrrsstCu4vAwBx3yyzz{{||}}~~, | |
179 | bel=^G, blink=\E[5m, bold=\E[1m, cbt=\E[Z, | |
180 | clear=\E[2J\E[H, | |
181 | cr=\r, cub=\E[%p1%dD, cub1=\E[D, cud=\E[%p1%dB, | |
182 | cud1=\E[B, cuf=\E[%p1%dC, cuf1=\E[C, | |
183 | cup=\E[%i%p1%02d;%p2%02dH, cuu=\E[%p1%dA, cuu1=\E[A, | |
184 | dch=\E[%p1%dP, dch1=\E[P, dl=\E[%p1%dM, dl1=\E[1M, | |
185 | ech=\E[%p1%dX,ed=\E[J, el=\E[K, el1=\E[1K\E[X, flash=^G, home=\E[H, | |
186 | hpa=\E[%i%p1%dG, ich=\E[%p1%d@, ich1=\E[1@, il=\E[%p1%dL, il1=\E[1L, | |
187 | ind=\E[S, indn=\E[%p1%dS, invis=\E[9m, | |
188 | is2=\E[0;10;38m, kbs=\b, kcbt=^], kclr=\E[2J, | |
189 | kcub1=\E[D, kcud1=\E[B, kcuf1=\E[C, kcuu1=\E[A, | |
190 | kdch1=\E[P, kend=\E[Y, kf1=\EOP, kf10=\EOY, kf11=\EOZ, | |
191 | kf12=\EOA, kf2=\EOQ, kf3=\EOR, kf4=\EOS, kf5=\EOT, | |
192 | kf6=\EOU, kf7=\EOV, kf8=\EOW, kf9=\EOX, khome=\E[H, | |
193 | kich1=\E[@, knp=\E[U, kpp=\E[V, krmir=\E0, rev=\E[7m, ri=\E[T, | |
194 | rin=\E[%p1%dT, rmacs=\E[10m, rmso=\E[m, rmul=\E[m, | |
195 | 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, | |
196 | sgr0=\E[0;10m, smacs=\E[12m, smso=\E[7m, smul=\E[4m, | |
197 | ||
198 | # | |
177c0ea7 | 199 | # AT&T 386 color console |
a933dad1 DL |
200 | # |
201 | AT386|at386|386AT|386at|at/386 console, | |
202 | colors#8, ncv#3, pairs#64, | |
203 | is2=\E[0;10;39m, | |
177c0ea7 | 204 | op=\E[0m, |
a933dad1 DL |
205 | setb=\E[%?%p1%{0}%=%t40m |
206 | %e%p1%{1}%=%t44m | |
207 | %e%p1%{2}%=%t42m | |
208 | %e%p1%{3}%=%t46m | |
209 | %e%p1%{4}%=%t41m | |
210 | %e%p1%{5}%=%t45m | |
211 | %e%p1%{6}%=%t43m | |
212 | %e%p1%{7}%=%t47m%;, | |
213 | setf=\E[%?%p1%{0}%=%t30m | |
214 | %e%p1%{1}%=%t34m | |
215 | %e%p1%{2}%=%t32m | |
216 | %e%p1%{3}%=%t36m | |
217 | %e%p1%{4}%=%t31m | |
218 | %e%p1%{5}%=%t35m | |
219 | %e%p1%{6}%=%t33m | |
220 | %e%p1%{6}%=%t33m | |
221 | %e%p1%{7}%=%t37m%;, | |
222 | use=at386-m, | |
223 | # | |
224 | # Color console version that supports underline but maps blue | |
225 | # foreground color to cyan. | |
226 | # | |
227 | AT386-UL|at386-ul|386AT-UL|386at-ul|at/386 console, | |
228 | is2=\E[0;10;38m, | |
229 | use=at386, |