projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 658815ab KA |
1 | /* |
| 2 | * Terminal initialization routines. | |
| 3 | * | |
| 4 | * %G% (Berkeley) @(#)setterm.c 1.1 | |
| 5 | */ | |
| 6 | ||
| 7 | # undef DEBUG | |
| 8 | ||
| 9 | # include "curses.ext" | |
| 10 | # include "cr_ex.h" | |
| 11 | ||
| 12 | static bool *sflags[] = { | |
| 13 | &AM, &BS, &EO, &HZ, &IN, &MI, &MS, &NC, &OS, &UL, &XN | |
| 14 | }; | |
| 15 | ||
| 16 | static char *xPC, | |
| 17 | **sstrs[] = { | |
| 18 | &AL, &BC, &BT, &CD, &CE, &CL, &CM, &DC, &DL, | |
| 19 | &DM, &DO, &ED, &EI, &HO, &IC, &IM, &IP, &LL, | |
| 20 | &MA, &ND, &xPC, &SE, &SF, &SO, &SR, &TA, &TE, | |
| 21 | &TI, &UC, &UE, &UP, &US, &VB, &VS, &VE | |
| 22 | }, | |
| 23 | *longname(), *tgoto(); | |
| 24 | ||
| 25 | static char tspace[128], /* Space for capability strings */ | |
| 26 | *aoftspace; /* Address of tspace for relocation */ | |
| 27 | ||
| 28 | static int destcol, destline; | |
| 29 | ||
| 30 | /* | |
| 31 | * This routine does terminal type initialization routines, and | |
| 32 | * calculation of flags at entry. It is almost entirely stolen from | |
| 33 | * Bill Joy's ex version 2.6. | |
| 34 | */ | |
| 35 | short ospeed = -1; | |
| 36 | ||
| 37 | gettmode() { | |
| 38 | ||
| 39 | if (gtty(_tty_ch, &_tty) < 0) | |
| 40 | return; | |
| 41 | savetty(); | |
| 42 | if (stty(_tty_ch, &_tty) < 0) | |
| 43 | _tty.sg_flags = _res_flg; | |
| 44 | ospeed = _tty.sg_ospeed; | |
| 45 | _res_flg = _tty.sg_flags; | |
| 46 | UPPERCASE = (_tty.sg_flags & LCASE) != 0; | |
| 47 | GT = ((_tty.sg_flags & XTABS) == 0); | |
| 48 | NONL = ((_tty.sg_flags & CRMOD) == 0); | |
| 49 | # ifdef DEBUG | |
| 50 | fprintf(outf, "GETTMODE: UPPERCASE = %s\n", UPPERCASE ? "TRUE":"FALSE"); | |
| 51 | fprintf(outf, "GETTMODE: GT = %s\n", GT ? "TRUE" : "FALSE"); | |
| 52 | fprintf(outf, "GETTMODE: NONL = %s\n", NONL ? "TRUE" : "FALSE"); | |
| 53 | fprintf(outf, "GETTMODE: ospeed = %d\n", ospeed); | |
| 54 | # endif | |
| 55 | } | |
| 56 | ||
| 57 | setterm(type) | |
| 58 | reg char *type; { | |
| 59 | ||
| 60 | reg int unknown; | |
| 61 | char genbuf[1024]; | |
| 62 | ||
| 63 | # ifdef DEBUG | |
| 64 | fprintf(outf, "SETTERM(\"%s\")\n", type); | |
| 65 | fprintf(outf, "SETTERM: LINES = %d, COLS = %d\n", LINES, COLS); | |
| 66 | # endif | |
| 67 | if (type[0] == '\0') | |
| 68 | type = "xx"; | |
| 69 | unknown = FALSE; | |
| 70 | if (tgetent(genbuf, type) != 1) { | |
| 71 | unknown++; | |
| 72 | strcpy(genbuf, "xx|dumb:"); | |
| 73 | } | |
| 74 | # ifdef DEBUG | |
| 75 | fprintf(outf, "SETTERM: tty = %s\n", type); | |
| 76 | # endif | |
| 77 | if (LINES == 0) | |
| 78 | LINES = tgetnum("li"); | |
| 79 | if (LINES <= 5) | |
| 80 | LINES = 24; | |
| 81 | else if (LINES > 48) | |
| 82 | LINES = 48; | |
| 83 | ||
| 84 | if (COLS == 0) | |
| 85 | COLS = tgetnum("co"); | |
| 86 | if (COLS <= 4) | |
| 87 | COLS = 80; | |
| 88 | else if (COLS > 1000) | |
| 89 | COLS = 1000; | |
| 90 | # ifdef DEBUG | |
| 91 | fprintf(outf, "SETTERM: LINES = %d, COLS = %d\n", LINES, COLS); | |
| 92 | # endif | |
| 93 | aoftspace = tspace; | |
| 94 | zap(); /* get terminal description */ | |
| 95 | if (tgoto(CM, destcol, destline)[0] == 'O') | |
| 96 | CA = FALSE, CM = 0; | |
| 97 | else | |
| 98 | CA = TRUE; | |
| 99 | PC = xPC ? xPC[0] : FALSE; | |
| 100 | aoftspace = tspace; | |
| 101 | strcpy(ttytype, longname(genbuf, type)); | |
| 102 | if (unknown) | |
| 103 | return ERR; | |
| 104 | return OK; | |
| 105 | } | |
| 106 | /* | |
| 107 | * This routine gets all the terminal falgs from the termcap database | |
| 108 | */ | |
| 109 | zap() { | |
| 110 | ||
| 111 | reg bool **fp; | |
| 112 | reg char *namp, ***sp; | |
| 113 | extern char *tgetstr(); | |
| 114 | ||
| 115 | /* | |
| 116 | * get boolean flags | |
| 117 | */ | |
| 118 | namp = "ambseohzinmimsncosulxn\0\0"; | |
| 119 | # ifdef FULLDEBUG | |
| 120 | fprintf(outf, "ZAP: namp = \"%s\"\n", namp); | |
| 121 | # endif | |
| 122 | fp = sflags; | |
| 123 | do { | |
| 124 | *(*fp++) = tgetflag(namp); | |
| 125 | # ifdef FULLDEBUG | |
| 126 | fprintf(outf, "ZAP: %.2s = %d", namp, *(*(fp - 1))); | |
| 127 | # endif | |
| 128 | namp += 2; | |
| 129 | } while (*namp); | |
| 130 | ||
| 131 | /* | |
| 132 | * get string values | |
| 133 | */ | |
| 134 | namp = "albcbtcdceclcmdcdldmdoedeihoicimipllmandpcsesfsosrtatetiucueupusvbvsve"; | |
| 135 | # ifdef FULLDEBUG | |
| 136 | fprintf(outf, "ZAP: namp = \"%s\"\n", namp); | |
| 137 | # endif | |
| 138 | sp = sstrs; | |
| 139 | do { | |
| 140 | *(*sp++) = tgetstr(namp, &aoftspace); | |
| 141 | # ifdef FULLDEBUG | |
| 142 | fprintf(outf, "ZAP: %.2s = \"%s\"\n", namp, *(*(sp-1))); | |
| 143 | # endif | |
| 144 | namp += 2; | |
| 145 | } while (*namp); | |
| 146 | if (!SO && US) { | |
| 147 | SO = US; | |
| 148 | SE = UE; | |
| 149 | } | |
| 150 | } |