/* Copyright (c) 1979 Regents of the University of California */
* Capabilities from termcap
* The description of terminals is a difficult business, and we only
* attempt to summarize the capabilities here; for a full description
* see the paper describing termcap.
* Capabilities from termcap are of three kinds - string valued options,
* numeric valued options, and boolean options. The string valued options
* are the most complicated, since they may include padding information,
* Intelligent terminals often require padding on intelligent operations
* at high (and sometimes even low) speed. This is specified by
* a number before the string in the capability, and has meaning for the
* capabilities which have a P at the front of their comment.
* This normally is a number of milliseconds to pad the operation.
* In the current system which has no true programmible delays, we
* do this by sending a sequence of pad characters (normally nulls, but
* specifiable as "pc"). In some cases, the pad is better computed
* as some number of milliseconds times the number of affected lines
* (to bottom of screen usually, except when terminals have insert modes
* which will shift several lines.) This is specified as '12*' e.g.
* before the capability to say 12 milliseconds per affected whatever
* (currently always line). Capabilities where this makes sense say P*.
char tspace
[128]; /* Space for capability strings */
char *aoftspace
; /* Address of tspace for relocation */
char *AL
; /* P* Add new blank line */
char *BC
; /* Back cursor */
char *CD
; /* P* Clear to end of display */
char *CE
; /* P Clear to end of line */
char *CL
; /* P* Clear screen */
char *CM
; /* P Cursor motion */
char *DC
; /* P* Delete character */
char *DL
; /* P* Delete line sequence */
char *DM
; /* Delete mode (enter) */
char *DO
; /* Down line sequence */
char *ED
; /* End delete mode */
char *EI
; /* End insert mode */
char *HO
; /* Home cursor */
char *IC
; /* P Insert character */
char *IM
; /* Insert mode (give as ':im=:' if 'ic' */
char *IP
; /* P* Insert pad after char ins'd using IM+IE */
char *LL
; /* Quick to last line, column 0 */
char *MA
; /* Control character map for cmd mode */
char *ND
; /* Non-destructive space */
char PC
; /* Pad character */
char *SE
; /* Standout end (may leave space) */
char *SF
; /* P Scroll forwards */
char *SO
; /* Stand out begin (may leave space) */
char *SR
; /* P Scroll backwards */
char *TA
; /* P Tab (other than ^I or with padding) */
char *VB
; /* Visible bell */
char *VE
; /* Visual end sequence */
char *VS
; /* Visual start sequence */
bool AM
; /* Automatic margins */
bool BS
; /* Backspace works */
bool CA
; /* Cursor addressible */
bool DA
; /* Display may be retained above */
bool DB
; /* Display may be retained below */
bool EO
; /* Can erase overstrikes with ' ' */
bool GT
; /* Gtty indicates tabs */
bool HZ
; /* Hazeltine ~ braindamage */
bool IN
; /* Insert-null blessing */
bool MI
; /* can move in insert mode */
bool NC
; /* No Cr - \r snds \r\n then eats \n (dm2500) */
bool OS
; /* Overstrike works */
bool UL
; /* Underlining works even though !os */
bool XN
; /* A newline gets eaten after wrap (concept) */
/* X? is reserved for severely nauseous glitches */
/* If there are enough of these we may need bit masks! */
bool NONL
; /* Terminal can't hack linefeeds doing a CR */
bool UPPERCASE
; /* Ick! */
short LINES
; /* Number of lines on screen */
short OCOLUMNS
; /* Save COLUMNS for a hack in open mode */
short outcol
; /* Where the cursor is */
short destcol
; /* Where the cursor should be */
struct sgttyb tty
; /* Always stty/gtty using this one structure */
bool normtty
; /* Have to restor normal mode from normf */
int normf
; /* Restore tty flags to this (someday) */