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ex_tty.h
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C/C++ Source or Header
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1980-02-17
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4KB
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98 lines
/* 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,
* which we describe now.
*
* 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 *UP; /* Upline */
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! */
/*
* From the tty modes...
*/
bool NONL; /* Terminal can't hack linefeeds doing a CR */
bool UPPERCASE; /* Ick! */
short LINES; /* Number of lines on screen */
short COLUMNS;
short OCOLUMNS; /* Save COLUMNS for a hack in open mode */
short outcol; /* Where the cursor is */
short outline;
short destcol; /* Where the cursor should be */
short destline;
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) */
short WBOT;
short WECHO;