projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a3869972 BJ |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | /* | |
| 3 | * Capabilities from termcap | |
| 4 | * | |
| 5 | * The description of terminals is a difficult business, and we only | |
| 6 | * attempt to summarize the capabilities here; for a full description | |
| 7 | * see the paper describing termcap. | |
| 8 | * | |
| 9 | * Capabilities from termcap are of three kinds - string valued options, | |
| 10 | * numeric valued options, and boolean options. The string valued options | |
| 11 | * are the most complicated, since they may include padding information, | |
| 12 | * which we describe now. | |
| 13 | * | |
| 14 | * Intelligent terminals often require padding on intelligent operations | |
| 15 | * at high (and sometimes even low) speed. This is specified by | |
| 16 | * a number before the string in the capability, and has meaning for the | |
| 17 | * capabilities which have a P at the front of their comment. | |
| 18 | * This normally is a number of milliseconds to pad the operation. | |
| 19 | * In the current system which has no true programmible delays, we | |
| 20 | * do this by sending a sequence of pad characters (normally nulls, but | |
| 21 | * specifiable as "pc"). In some cases, the pad is better computed | |
| 22 | * as some number of milliseconds times the number of affected lines | |
| 23 | * (to bottom of screen usually, except when terminals have insert modes | |
| 24 | * which will shift several lines.) This is specified as '12*' e.g. | |
| 25 | * before the capability to say 12 milliseconds per affected whatever | |
| 26 | * (currently always line). Capabilities where this makes sense say P*. | |
| 27 | */ | |
| 28 | char tspace[128]; /* Space for capability strings */ | |
| 29 | char *aoftspace; /* Address of tspace for relocation */ | |
| 30 | ||
| 31 | char *AL; /* P* Add new blank line */ | |
| 32 | char *BC; /* Back cursor */ | |
| 33 | char *CD; /* P* Clear to end of display */ | |
| 34 | char *CE; /* P Clear to end of line */ | |
| 35 | char *CL; /* P* Clear screen */ | |
| 36 | char *CM; /* P Cursor motion */ | |
| 37 | char *DC; /* P* Delete character */ | |
| 38 | char *DL; /* P* Delete line sequence */ | |
| 39 | char *DM; /* Delete mode (enter) */ | |
| 40 | char *DO; /* Down line sequence */ | |
| 41 | char *ED; /* End delete mode */ | |
| 42 | char *EI; /* End insert mode */ | |
| 43 | char *HO; /* Home cursor */ | |
| 44 | char *IC; /* P Insert character */ | |
| 45 | char *IM; /* Insert mode (give as ':im=:' if 'ic' */ | |
| 46 | char *IP; /* P* Insert pad after char ins'd using IM+IE */ | |
| 47 | char *LL; /* Quick to last line, column 0 */ | |
| 48 | char *MA; /* Control character map for cmd mode */ | |
| 49 | char *ND; /* Non-destructive space */ | |
| 50 | char PC; /* Pad character */ | |
| 51 | char *SE; /* Standout end (may leave space) */ | |
| 52 | char *SF; /* P Scroll forwards */ | |
| 53 | char *SO; /* Stand out begin (may leave space) */ | |
| 54 | char *SR; /* P Scroll backwards */ | |
| 55 | char *TA; /* P Tab (other than ^I or with padding) */ | |
| 56 | char *UP; /* Upline */ | |
| 57 | char *VB; /* Visible bell */ | |
| 58 | char *VE; /* Visual end sequence */ | |
| 59 | char *VS; /* Visual start sequence */ | |
| 60 | bool AM; /* Automatic margins */ | |
| 61 | bool BS; /* Backspace works */ | |
| 62 | bool CA; /* Cursor addressible */ | |
| 63 | bool DA; /* Display may be retained above */ | |
| 64 | bool DB; /* Display may be retained below */ | |
| 65 | bool EO; /* Can erase overstrikes with ' ' */ | |
| 66 | bool GT; /* Gtty indicates tabs */ | |
| 67 | bool HZ; /* Hazeltine ~ braindamage */ | |
| 68 | bool IN; /* Insert-null blessing */ | |
| 69 | bool MI; /* can move in insert mode */ | |
| 70 | bool NC; /* No Cr - \r snds \r\n then eats \n (dm2500) */ | |
| 71 | bool OS; /* Overstrike works */ | |
| 72 | bool UL; /* Underlining works even though !os */ | |
| 73 | bool XN; /* A newline gets eaten after wrap (concept) */ | |
| 74 | /* X? is reserved for severely nauseous glitches */ | |
| 75 | /* If there are enough of these we may need bit masks! */ | |
| 76 | ||
| 77 | /* | |
| 78 | * From the tty modes... | |
| 79 | */ | |
| 80 | bool NONL; /* Terminal can't hack linefeeds doing a CR */ | |
| 81 | bool UPPERCASE; /* Ick! */ | |
| 82 | short LINES; /* Number of lines on screen */ | |
| 83 | short COLUMNS; | |
| 84 | short OCOLUMNS; /* Save COLUMNS for a hack in open mode */ | |
| 85 | ||
| 86 | short outcol; /* Where the cursor is */ | |
| 87 | short outline; | |
| 88 | ||
| 89 | short destcol; /* Where the cursor should be */ | |
| 90 | short destline; | |
| 91 | ||
| 92 | struct sgttyb tty; /* Always stty/gtty using this one structure */ | |
| 93 | bool normtty; /* Have to restor normal mode from normf */ | |
| 94 | int normf; /* Restore tty flags to this (someday) */ | |
| 95 | ||
| 96 | short WBOT; | |
| 97 | short WECHO; |