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termcap.ms
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1994-01-16
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.Go 12 "TERMCAP"
.PP
\*E uses fairly standard termcap fields for most things.
I invented the cursor shape names and some of the function key names,
but other than that there should be few surprises.
.LP
.SH
Required numeric fields
.if n .ul 0
.ID
.ta 12n
:co#: number of columns on the screen (chars per line)
:li#: number of lines on the screen
.DE
.PP
On many systems, \*E has other ways to find out how many rows and columns
your screen can show, so these values might not be very relevent.
If these numbers aren't given in your termcap entry,
and \*E can't find the screen size any other way,
then it will default to 80x24.
.LP
.SH
Required string fields
.if n .ul 0
.ID
.ta 12n
:ce=: clear to end-of-line
:cm=: move the cursor to a given row/column
:up=: move the cursor up one line
.DE
.PP
If these fields are missing, then \*E will still run fairly well in "ex" mode,
but "vi" mode requires these capabilities as an absolute minimum.
.LP
.SH
Boolean fields
.if n .ul 0
.ID
.ta 12n
:am: auto margins - wrap when char is written in last column?
:xn: brain-damaged auto margins - newline ignored after wrap
:pt: physical tabs?
.DE
.LP
.SH
Optional string fields
.if n .ul 0
.ID
.ta 12n
:al=: insert a blank row on the screen
:cl=: home the cursor & clear the screen
:dl=: delete a row from the screen
:cd=: clear to end of display
:ei=: end insert mode
:ic=: insert a blank character
:im=: start insert mode
:dc=: delete a character
:sr=: scroll reverse (insert row at top of screen)
:vb=: visible bell
:ks=: keypad enable
:ke=: keypad disable
:ti=: terminal initialization string, to start full-screen mode
:te=: terminal termination, to end full-screen mode
.DE
.LP
.SH
Optional strings received from the keyboard
.if n .ul 0
.ID
.ta 12n
:kd=: sequence sent by the <down arrow> key
:kl=: sequence sent by the <left arrow> key
:kr=: sequence sent by the <right arrow> key
:ku=: sequence sent by the <up arrow> key
:kP=: sequence sent by the <PgUp> key
:kN=: sequence sent by the <PgDn> key
:kh=: sequence sent by the <Home> key
:kH=: sequence sent by the <End> key
:kI=: sequence sent by the <Insert> key
.DE
.PP
Originally, termcap didn't have any names for the <PgUp>, <PgDn>, <Home>,
and <End> keys.
Although the capability names shown in the table above are the most common,
they are \fInot\fR universal.
SCO Xenix uses :PU=:PD=:HM=:EN=: for those keys.
Also, if the four arrow keys happen to be part of a 3x3 keypad,
then the five non-arrow keys may be named :K1=: through :K5=:,
so an IBM PC keyboard may be described using those names instead.
\*E can find any of these names.
.LP
.SH
Optional strings sent by function keys
.if n .ul 0
.ID
.ta 20n
:k1=:...:k9=:k0=: codes sent by <F1> through <F10> keys
:s1=:...:s9=:s0=: codes sent by <Shift F1> ... <Shift F10>
:c1=:...:c9=:c0=: codes sent by <Ctrl F1> ... <Ctrl F10>
:a1=:...:a9=:a0=: codes sent by <Alt F1> ... <Alt F10>
.DE
.PP
Note that :k0=: is used to describe the <F10> key.
Some termcap documents recommend :ka=: or even :k;=: for describing
the <F10> key, but \*E doesn't support that.
.PP
Also, the :s1=:..., :c1=:..., and :a1=:... codes are very non-standard.
The terminfo library doesn't support them.
Consequently, if you're using the terminfo library then you might as well
add -DNO_SHIFT_FKEY to your CFLAGS setting.
.LP
.SH
Optional fields that describe character attributes
.if n .ul 0
.ID
.ta 12n
:so=:se=: start/end standout mode (We don't care about :sg#:)
:us=:ue=: start/end underlined mode
:md=:me=: start/end boldface mode
:as=:ae=: start/end alternate character set (italics)
:ug#: visible gap left by :us=:ue=:md=:me=:as=:ae=:
.DE
.LP
.SH
Optional fields that affect the cursor's shape
.PP
The :cQ=: string is used by \*E immediately before exiting to undo
the effects of the other cursor shape strings.
If :cQ=: is not given, then all other cursor shape strings are ignored.
.ID
.ta 12n
:cQ=: normal cursor
:cX=: cursor used for reading EX command
:cV=: cursor used for reading VI commands
:cI=: cursor used during VI input mode
:cR=: cursor used during VI replace mode
.DE
.PP
If the capabilities above aren't given, then \*E will try to use the
following values instead.
.ID
.ta 12n
:ve=: normal cursor, used as :cQ=:cX=:cI=:cR=:
:vs=: gaudy cursor, used as :cV=:
.DE
.LP
.SH
An example
.PP
Here's the termcap entry I use on my Minix-ST system.
.sp
.LD
.ne 10
mx|minix|minixst|ansi:\e
:is=\eE[0~:co#80:li#25:bs:pt:\e
:cm=\eE[%i%d;%dH:up=\eE[A:do=^J:nd=\eE[C:sr=\eEM:\e
:cd=\eE[J:ce=\eE[K:cl=\eE[H\eE[J:\e
:al=\eE[L:dl=\eE[M:ic=\eE[@:dc=\eE[P:im=:ei=:\e
:so=\eE[7m:se=\eE[m:us=\eE[4m:ue=\eE[m:\e
:md=\eE[1m:me=\eE[m:as=\eE[1;3m:ae=\eE[m:\e
:ku=\eE[A:kd=\eE[B:kr=\eE[C:kl=\eE[D:\e
:k1=\eE[1~:k2=\eE[2~:k3=\eE[3~:k4=\eE[4~:k5=\eE[5~:\e
:k6=\eE[6~:k7=\eE[17~:k8=\eE[18~:k9=\eE[19~:k0=\eE[20~:
.DE