handle multiple uba's

[unix-history] / usr / src / usr.bin / ex / ex_tty.c

diff --git a/usr/src/usr.bin/ex/ex_tty.c b/usr/src/usr.bin/ex/ex_tty.c
index bc4d094..ca96700 100644 (file)
--- a/usr/src/usr.bin/ex/ex_tty.c
+++ b/usr/src/usr.bin/ex/ex_tty.c
@@ -1,5 +1,5 @@
-/* Copyright (c) 1980 Regents of the University of California */
-static char *sccsid = "@(#)ex_tty.c    5.1 %G%";
+/* Copyright (c) 1981 Regents of the University of California */
+static char *sccsid = "@(#)ex_tty.c    7.5     %G%";

 #include "ex.h"
 #include "ex_tty.h"
 
 #include "ex.h"
 #include "ex_tty.h"
 


@@ -8,7 +8,7 @@ static char *sccsid = "@(#)ex_tty.c     5.1 %G%";
  * and calculation of flags at entry or after
  * a shell escape which may change them.
  */
  * and calculation of flags at entry or after
  * a shell escape which may change them.
  */

-short  ospeed = -1;
+/* short       ospeed = -1;    mjm: def also in tputs.c of termcap.a  */

 
 gettmode()
 {
 
 gettmode()
 {


@@ -26,22 +26,23 @@ gettmode()
 #else
        if (ioctl(1, TCGETA, &tty) < 0)
                return;
 #else
        if (ioctl(1, TCGETA, &tty) < 0)
                return;

-       if (ospeed != tty.c_cflag & CBAUD)
+       if (ospeed != (tty.c_cflag & CBAUD))    /* mjm */

                value(SLOWOPEN) = (tty.c_cflag & CBAUD) < B1200;
        ospeed = tty.c_cflag & CBAUD;
        normf = tty;
        UPPERCASE = (tty.c_iflag & IUCLC) != 0;
        GT = (tty.c_oflag & TABDLY) != TAB3 && !XT;
                value(SLOWOPEN) = (tty.c_cflag & CBAUD) < B1200;
        ospeed = tty.c_cflag & CBAUD;
        normf = tty;
        UPPERCASE = (tty.c_iflag & IUCLC) != 0;
        GT = (tty.c_oflag & TABDLY) != TAB3 && !XT;

-       NONL = (tty.c_oflag & OCRNL) == 0;
+       NONL = (tty.c_oflag & ONLCR) == 0;

 #endif
 }
 
 char *xPC;
 char **sstrs[] = {
 #endif
 }
 
 char *xPC;
 char **sstrs[] = {

-       &AL, &BC, &BT, &CD, &CE, &CL, &CM, &xCR, &DC, &DL, &DM, &DO, &ED, &EI,
-       &F0, &F1, &F2, &F3, &F4, &F5, &F6, &F7, &F8, &F9,
-       &HO, &IC, &IM, &IP, &KD, &KE, &KH, &KL, &KR, &KS, &KU, &LL,
-       &ND, &xNL, &xPC, &SE, &SF, &SO, &SR, &TA, &TE, &TI, &UP, &VB, &VS, &VE
+       &AL, &BC, &BT, &CD, &CE, &CL, &CM, &xCR, &CS, &DC, &DL, &DM, &DO,
+       &ED, &EI, &F0, &F1, &F2, &F3, &F4, &F5, &F6, &F7, &F8, &F9,
+       &HO, &IC, &IM, &IP, &KD, &KE, &KH, &KL, &KR, &KS, &KU, &LL, &ND, &xNL,
+       &xPC, &RC, &SC, &SE, &SF, &SO, &SR, &TA, &TE, &TI, &UP, &VB, &VS, &VE,
+       &AL_PARM, &DL_PARM, &UP_PARM, &DOWN_PARM, &LEFT_PARM, &RIGHT_PARM

 };
 bool *sflags[] = {
        &AM, &BS, &DA, &DB, &EO, &HC, &HZ, &IN, &MI, &NC, &NS, &OS, &UL,
 };
 bool *sflags[] = {
        &AM, &BS, &DA, &DB, &EO, &HC, &HZ, &IN, &MI, &NC, &NS, &OS, &UL,


@@ -69,13 +70,15 @@ setterm(type)
        i = LINES = tgetnum("li");
        if (LINES <= 5)
                LINES = 24;
        i = LINES = tgetnum("li");
        if (LINES <= 5)
                LINES = 24;

-       if (LINES > 48)
-               LINES = 48;
+       if (LINES > TUBELINES)
+               LINES = TUBELINES;

        l = LINES;
        if (ospeed < B1200)
                l = 9;  /* including the message line at the bottom */
        else if (ospeed < B2400)
                l = 17;
        l = LINES;
        if (ospeed < B1200)
                l = 9;  /* including the message line at the bottom */
        else if (ospeed < B2400)
                l = 17;

+       if (l > LINES)
+               l = LINES;

        aoftspace = tspace;
        zap();
        /*
        aoftspace = tspace;
        zap();
        /*


@@ -87,6 +90,16 @@ setterm(type)
        arrows[3].cap = KR; arrows[3].mapto = "l"; arrows[3].descr = "right";
        arrows[4].cap = KH; arrows[4].mapto = "H"; arrows[4].descr = "home";
 
        arrows[3].cap = KR; arrows[3].mapto = "l"; arrows[3].descr = "right";
        arrows[4].cap = KH; arrows[4].mapto = "H"; arrows[4].descr = "home";
 

+       /*
+        * Handle funny termcap capabilities
+        */
+       if (CS && SC && RC) AL=DL="";
+       if (AL_PARM && AL==NULL) AL="";
+       if (DL_PARM && DL==NULL) DL="";
+       if (IC && IM==NULL) IM="";
+       if (IC && EI==NULL) EI="";
+       if (!GT) BT=NULL;       /* If we can't tab, we can't backtab either */
+

 #ifdef TIOCLGET
        /*
         * Now map users susp char to ^Z, being careful that the susp
 #ifdef TIOCLGET
        /*
         * Now map users susp char to ^Z, being careful that the susp


@@ -119,7 +132,12 @@ setterm(type)
        if (tgoto(CM, 2, 2)[0] == 'O')  /* OOPS */
                CA = 0, CM = 0;
        else
        if (tgoto(CM, 2, 2)[0] == 'O')  /* OOPS */
                CA = 0, CM = 0;
        else

-               CA = 1, costCM = strlen(tgoto(CM, 8, 10));
+               CA = 1, costCM = cost(tgoto(CM, 8, 10));
+       costSR = cost(SR);
+       costAL = cost(AL);
+       costDP = cost(tgoto(DOWN_PARM, 10, 10));
+       costLP = cost(tgoto(LEFT_PARM, 10, 10));
+       costRP = cost(tgoto(RIGHT_PARM, 10, 10));

        PC = xPC ? xPC[0] : 0;
        aoftspace = tspace;
        CP(ttytype, longname(ltcbuf, type));
        PC = xPC ? xPC[0] : 0;
        aoftspace = tspace;
        CP(ttytype, longname(ltcbuf, type));


@@ -130,6 +148,8 @@ setterm(type)
        gettmode();
        value(REDRAW) = AL && DL;
        value(OPTIMIZE) = !CA && !GT;
        gettmode();
        value(REDRAW) = AL && DL;
        value(OPTIMIZE) = !CA && !GT;

+       if (ospeed == B1200 && !value(REDRAW))
+               value(SLOWOPEN) = 1;    /* see also gettmode above */

        if (unknown)
                serror("%s: Unknown terminal type", type);
 }
        if (unknown)
                serror("%s: Unknown terminal type", type);
 }


@@ -140,13 +160,13 @@ zap()
        register bool **fp;
        register char ***sp;
 
        register bool **fp;
        register char ***sp;
 

-       namp = "ambsdadbeohchzinmincnsosulxbxnxtxx";
+       namp = "ambsdadbeohchzinmincnsosulxbxnxtxx";

        fp = sflags;
        do {
                *(*fp++) = tgetflag(namp);
                namp += 2;
        } while (*namp);
        fp = sflags;
        do {
                *(*fp++) = tgetflag(namp);
                namp += 2;
        } while (*namp);

-       namp = "albcbtcdceclcmcrdcdldmdoedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullndnlpcsesfsosrtatetiupvbvsve";
+       namp = "albcbtcdceclcmcrcsdcdldmdoedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullndnlpcrcscsesfsosrtatetiupvbvsveALDLUPDOLERI";

        sp = sstrs;
        do {
                *(*sp++) = tgetstr(namp, &aoftspace);
        sp = sstrs;
        do {
                *(*sp++) = tgetstr(namp, &aoftspace);


@@ -183,3 +203,33 @@ fkey(i)
        else
                return(NOSTR);
 }
        else
                return(NOSTR);
 }

+
+/*
+ * cost figures out how much (in characters) it costs to send the string
+ * str to the terminal.  It takes into account padding information, as
+ * much as it can, for a typical case.  (Right now the typical case assumes
+ * the number of lines affected is the size of the screen, since this is
+ * mainly used to decide if AL or SR is better, and this always happens
+ * at the top of the screen.  We assume cursor motion (CM) has little
+ * padding, if any, required, so that case, which is really more important
+ * than AL vs SR, won't be really affected.)
+ */
+static int costnum;
+cost(str)
+char *str;
+{
+       int countnum();
+
+       if (str == NULL || *str=='O')   /* OOPS */
+               return 10000;   /* infinity */
+       costnum = 0;
+       tputs(str, LINES, countnum);
+       return costnum;
+}
+
+/* ARGSUSED */
+countnum(ch)
+char ch;
+{
+       costnum++;
+}