+#ifndef lint
+static char sccsid[] = "@(#)t10.c 1.1 (CWI) 85/07/17";
+#endif lint
+
+#include "tdef.h"
+extern
+#include "d.h"
+extern
+#include "v.h"
+/*
+troff10.c
+
+CAT interface
+*/
+
+#include <sgtty.h>
+#include "ext.h"
+int vpos = 0; /* absolute vertical position on page */
+int hpos = 0; /* ditto horizontal */
+
+#define T_IESC 16
+
+short *chtab;
+char *chname;
+char *fontab[NFONT+1];
+char *kerntab[NFONT+1];
+char *fitab[NFONT+1];
+
+int Inch;
+int Hor;
+int Vert;
+int Unitwidth;
+int nfonts;
+int nsizes;
+int nchtab;
+
+/* these characters are used as various signals or values
+/* in miscellaneous places.
+/* values are set in specnames in t10.c
+*/
+
+int c_hyphen;
+int c_emdash;
+int c_rule;
+int c_minus;
+int c_narsp;
+int c_hnarsp;
+int c_fi;
+int c_fl;
+int c_ff;
+int c_ffi;
+int c_ffl;
+int c_acute;
+int c_grave;
+int c_under;
+int c_rooten;
+int c_boxrule;
+int c_lefthand;
+
+#include "dev.h"
+struct dev dev;
+struct font *fontbase[NFONT+1];
+
+
+ptinit()
+{
+ int i, fin, nw;
+ char *setbrk(), *filebase, *p;
+
+ /* open table for device,
+ /* read in resolution, size info, font info, etc.
+ /* and set params
+ */
+ strcat(termtab, "/dev");
+ strcat(termtab, devname);
+ strcat(termtab, "/DESC.out"); /* makes "..../devXXX/DESC.out" */
+ if ((fin = open(termtab, 0)) < 0) {
+ fprintf(stderr, "troff: can't open tables for %s\n", termtab);
+ done3(1);
+ }
+ read(fin, &dev, sizeof(struct dev ));
+ Inch = dev.res;
+ Hor = dev.hor;
+ Vert = dev.vert;
+ Unitwidth = dev.unitwidth;
+ nfonts = dev.nfonts;
+ nsizes = dev.nsizes;
+ nchtab = dev.nchtab;
+ filebase = setbrk(dev.filesize + EXTRAFONT); /* enough room for whole file */
+ /* plus room for fontcache */
+ read(fin, filebase, dev.filesize); /* all at once */
+ pstab = (short *) filebase;
+ chtab = pstab + nsizes + 1;
+ chname = (char *) (chtab + dev.nchtab);
+ p = chname + dev.lchname;
+ for (i = 1; i <= nfonts; i++) {
+ fontbase[i] = (struct font *) p;
+ nw = *p & BMASK; /* 1st thing is width count */
+ fontlab[i] = PAIR(fontbase[i]->namefont[0], fontbase[i]->namefont[1]);
+ /* for now, still 2 char names */
+ if (smnt == 0 && fontbase[i]->specfont == 1)
+ smnt = i; /* first special font */
+ p += sizeof(struct font); /* that's what's on the beginning */
+ fontab[i] = p;
+ kerntab[i] = p + nw;
+ fitab[i] = p + 3 * nw; /* skip width, kern, code */
+ p += 3 * nw + dev.nchtab + 128 - 32;
+ /*
+ *MC:jna skip also fcode, if there
+ *See also comment in makedev.c
+ */
+ if(fontbase[i]->fonttab == 1)
+ p += nw * sizeof(short);
+ }
+ fontbase[0] = (struct font *) p; /* the last shall be first */
+
+ /*
+ fontbase[0]->nwfont = EXTRAFONT - dev.nchtab - (128-32) - sizeof (struct font) - 255*(sizeof(short) + 2*sizeof(char));
+ last is for 255*(fonttab, kerntab and codetab(leaves us the
+ space for maximum chars
+ Yes, this is correct if you want to calculate this, but it has
+ been defined as well now
+ */
+
+ fontbase[0]->nwfont = MAXCHARS;
+ fontab[0] = p + sizeof (struct font);
+ close(fin);
+ /* there are a lot of things that used to be constant
+ /* that now require code to be executed.
+ */
+ sps = SPS;
+ ics = ICS;
+ for (i = 0; i < 16; i++)
+ tabtab[i] = DTAB * (i + 1);
+ pl = 11 * INCH;
+ po = PO;
+ spacesz = SS;
+ lss = lss1 = VS;
+ ll = ll1 = lt = lt1 = LL;
+ specnames(); /* install names like "hyphen", etc. */
+ if (ascii)
+ return;
+ fprintf(ptid, "x T %s\n", devname);
+ fprintf(ptid, "x res %d %d %d\n", Inch, Hor, Vert);
+ fprintf(ptid, "x init\n"); /* do initialization for particular device */
+ for (i = 1; i <= nfonts; i++)
+ fprintf(ptid, "x font %d %s\n", i, fontbase[i]->namefont);
+ /*
+ fprintf(ptid, "x xxx fonts=%d sizes=%d unit=%d\n", nfonts, nsizes, Unitwidth);
+ fprintf(ptid, "x xxx nchtab=%d lchname=%d nfitab=%d\n",
+ dev.nchtab, dev.lchname, dev.nchtab+128-32);
+ fprintf(ptid, "x xxx sizes:\nx xxx ");
+ for (i = 0; i < nsizes; i++)
+ fprintf(ptid, " %d", pstab[i]);
+ fprintf(ptid, "\nx xxx chars:\nx xxx ");
+ for (i = 0; i < dev.nchtab; i++)
+ fprintf(ptid, " %s", &chname[chtab[i]]);
+ fprintf(ptid, "\nx xxx\n");
+ */
+}
+
+specnames()
+{
+ static struct {
+ int *n;
+ char *v;
+ } spnames[] = {
+ &c_hyphen, "hy",
+ &c_emdash, "em",
+ &c_rule, "ru",
+ &c_minus, "\\-",
+ &c_narsp, "\\|",
+ &c_hnarsp, "\\^",
+ &c_fi, "fi",
+ &c_fl, "fl",
+ &c_ff, "ff",
+ &c_ffi, "Fi",
+ &c_ffl, "Fl",
+ &c_acute, "aa",
+ &c_grave, "ga",
+ &c_under, "ul",
+ &c_rooten, "rn",
+ &c_boxrule, "br",
+ &c_lefthand, "lh",
+ 0, 0
+ };
+ int i;
+
+ for (i = 0; spnames[i].n; i++)
+ *spnames[i].n = findch(spnames[i].v);
+}
+
+findch(s) /* find char s in chname */
+register char *s;
+{
+ register int i;
+
+ for (i = 0; i < nchtab; i++)
+ if (strcmp(s, &chname[chtab[i]]) == 0)
+ return(i + 128);
+ return(0);
+}
+
+ptout(i)
+tchar i;
+{
+ register dv, ik;
+ register tchar *k;
+ int temp, a, b;
+
+ if (cbits(i) != '\n') {
+ *olinep++ = i;
+ return;
+ }
+ if (olinep == oline) {
+ lead += lss;
+ return;
+ }
+
+ hpos = po; /* ??? */
+ esc = 0; /* ??? */
+ ptesc(); /* the problem is to get back to the left end of the line */
+ dv = 0;
+ for (k = oline; k < olinep; k++) {
+ if (ismot(*k) && isvmot(*k)) {
+ temp = absmot(*k);
+ if (isnmot(*k))
+ temp = -temp;
+ dv += temp;
+ }
+ }
+ if (dv) {
+ vflag++;
+ *olinep++ = makem(-dv);
+ vflag = 0;
+ }
+
+ b = dip->blss + lss;
+ lead += dip->blss + lss;
+ dip->blss = 0;
+ for (k = oline; k < olinep; )
+ k += ptout0(k); /* now passing a pointer! */
+ olinep = oline;
+ lead += dip->alss;
+ a = dip->alss;
+ dip->alss = 0;
+ /*
+ fprintf(ptid, "x xxx end of line: hpos=%d, vpos=%d\n", hpos, vpos);
+*/
+ fprintf(ptid, "n%d %d\n", b, a); /* be nice to chuck */
+}
+
+ptout0(pi)
+tchar *pi;
+{
+ register short j, k, w;
+ short z, dx, dy, dx2, dy2, n;
+ tchar i;
+ int outsize; /* size of object being printed */
+
+ outsize = 1; /* default */
+ i = *pi;
+ k = cbits(i);
+ if (ismot(i)) {
+ j = absmot(i);
+ if (isnmot(i))
+ j = -j;
+ if (isvmot(i))
+ lead += j;
+ else
+ esc += j;
+ return(outsize);
+ }
+ if (k == CHARHT) {
+ if (xpts != mpts)
+ ptps();
+ fprintf(ptid, "x H %d\n", sbits(i));
+ return(outsize);
+ }
+ if (k == SLANT) {
+ fprintf(ptid, "x S %d\n", sfbits(i)-180);
+ return(outsize);
+ }
+ if (k == WORDSP) {
+ oput('w');
+ return(outsize);
+ }
+ if (k == FONTPOS) {
+ char temp[3];
+ n = i >> 16;
+ temp[0] = n & BMASK;
+ temp[1] = n >> BYTE;
+ temp[2] = 0;
+ fprintf(stderr, "troff: Oops, still finding PONTPOS, save the files and warn jaap\n");
+ ptfpcmd(0, temp);
+ return(outsize);
+ }
+ xbitf = 2;
+ if (sfbits(i) == oldbits) {
+ xfont = pfont;
+ xpts = ppts;
+ xbitf = 0;
+ } else
+ xbits(i);
+ if (k < 040 && k != DRAWFCN)
+ return(outsize);
+ w = getcw(k - 32);
+ j = z = 0;
+ if (k != DRAWFCN) {
+ if (cs) {
+ if (bd)
+ w += (bd - 1) * HOR;
+ j = (cs - w) / 2;
+ w = cs - j;
+ if (bd)
+ w -= (bd - 1) * HOR;
+ }
+ if (iszbit(i)) {
+ if (cs)
+ w = -j;
+ else
+ w = 0;
+ z = 1;
+ }
+ }
+ esc += j;
+ if (xfont != mfont)
+ ptfont();
+ if (xpts != mpts)
+ ptps();
+ if (lead)
+ ptlead();
+ /* put out the real character here */
+ if (k == DRAWFCN) {
+ if (esc)
+ ptesc();
+ dx = absmot(pi[3]);
+ if (isnmot(pi[3]))
+ dx = -dx;
+ dy = absmot(pi[4]);
+ if (isnmot(pi[4]))
+ dy = -dy;
+ switch (cbits(pi[1])) {
+ case DRAWCIRCLE: /* circle */
+ fprintf(ptid, "D%c %d\n", DRAWCIRCLE, dx); /* dx is diameter */
+ w = 0;
+ hpos += dx;
+ break;
+ case DRAWELLIPSE:
+ fprintf(ptid, "D%c %d %d\n", DRAWELLIPSE, dx, dy);
+ w = 0;
+ hpos += dx;
+ break;
+ case DRAWLINE: /* line */
+ k = cbits(pi[2]);
+ fprintf(ptid, "D%c %d %d ", DRAWLINE, dx, dy);
+ if (k < 128)
+ fprintf(ptid, "%c\n", k);
+ else
+ fprintf(ptid, "%s\n", &chname[chtab[k - 128]]);
+ w = 0;
+ hpos += dx;
+ vpos += dy;
+ break;
+ case DRAWARC: /* arc */
+ dx2 = absmot(pi[5]);
+ if (isnmot(pi[5]))
+ dx2 = -dx2;
+ dy2 = absmot(pi[6]);
+ if (isnmot(pi[6]))
+ dy2 = -dy2;
+ fprintf(ptid, "D%c %d %d %d %d\n", DRAWARC,
+ dx, dy, dx2, dy2);
+ w = 0;
+ hpos += dx + dx2;
+ vpos += dy + dy2;
+ break;
+ case DRAWWIG: /* wiggly line */
+ fprintf(ptid, "D%c %d %d", DRAWWIG, dx, dy);
+ w = 0;
+ hpos += dx;
+ vpos += dy;
+ for (n = 5; cbits(pi[n]) != '.'; n += 2) {
+ dx = absmot(pi[n]);
+ if (isnmot(pi[n]))
+ dx = -dx;
+ dy = absmot(pi[n+1]);
+ if (isnmot(pi[n+1]))
+ dy = -dy;
+ fprintf(ptid, " %d %d", dx, dy);
+ hpos += dx;
+ vpos += dy;
+ }
+ fprintf(ptid, "\n");
+ break;
+ }
+ for (n = 3; cbits(pi[n]) != '.'; n++)
+ ;
+ outsize = n + 1;
+ } else if (k < 128) {
+ /* try to go faster and compress output */
+ /* by printing nnc for small positive motion followed by c */
+ /* kludgery; have to make sure set all the vars too */
+ if (esc > 0 && esc < 100) {
+ oput(esc / 10 + '0');
+ oput(esc % 10 + '0');
+ oput(k);
+ hpos += esc;
+ esc = 0;
+ } else {
+ if (esc)
+ ptesc();
+ fprintf(ptid, "c%c\n", k);
+ }
+ } else {
+ if (esc)
+ ptesc();
+ fprintf(ptid, "C%s\n", &chname[chtab[k - 128]]);
+ }
+ if (bd) {
+ bd -= HOR;
+ if (esc += bd)
+ ptesc();
+ if (k < 128) {
+ fprintf(ptid, "c%c\n", k);
+ } else
+ fprintf(ptid, "C%s\n", &chname[chtab[k - 128]]);
+ if (z)
+ esc -= bd;
+ }
+ esc += w;
+ return(outsize);
+}
+
+ptps()
+{
+ register i, j, k;
+
+ i = xpts;
+ for (j = 0; i > (k = pstab[j]); j++)
+ if (!k) {
+ k = pstab[--j];
+ break;
+ }
+ fprintf(ptid, "s%d\n", k); /* really should put out string rep of size */
+ mpts = i;
+}
+
+ptfont()
+{
+ mfont = xfont;
+ if( xfont > nfonts) {
+ char temp[3]; /* TODO: make a routine to convert */
+ temp[0] = fontlab[xfont] & BMASK; /* a name */
+ temp[1] = fontlab[xfont] >> BYTE; /* like */
+ temp[2] = 0; /* this */
+
+ ptfpcmd(0, temp); /* Put the desired font in the
+ * fontcache of the filter */
+ fprintf(ptid, "f0\n"); /* make sure that it gets noticed */
+ } else
+ fprintf(ptid, "f%d\n", xfont);
+}
+
+ptfpcmd(f, s)
+int f;
+char *s;
+{
+ if (ascii)
+ return;
+ fprintf(ptid, "x font %d %s\n", f, s);
+}
+
+ptlead()
+{
+ vpos += lead;
+ if (!ascii)
+ fprintf(ptid, "V%d\n", vpos);
+ lead = 0;
+}
+
+ptesc()
+{
+ hpos += esc;
+ if (esc > 0)
+ fprintf(ptid, "h%d", esc);
+ else
+ fprintf(ptid, "H%d\n", hpos);
+ esc = 0;
+}
+
+newpage(n) /* called at end of each output page (we hope) */
+{
+ ptlead();
+ vpos = 0;
+ if (ascii)
+ return;
+ flusho();
+ fprintf(ptid, "p%d\n", n); /* new page */
+ ptps();
+ ptfont();
+}
+
+pttrailer()
+{
+ fprintf(ptid, "x trailer\n");
+}
+
+ptstop()
+{
+ fprintf(ptid, "x stop\n");
+}
+
+dostop()
+{
+ if (ascii)
+ return;
+ ptlead();
+ vpos = 0;
+ /* fprintf(ptid, "x xxx end of page\n");*/
+ if (!nofeed)
+ pttrailer();
+ ptlead();
+ fprintf(ptid, "x pause\n");
+ flusho();
+ mpts = mfont = 0;
+ paper = 0;
+ esc = T_IESC; /* this is a dreg */
+ ptesc();
+ esc = po;
+ hpos = vpos = 0; /* probably in wrong place */
+}
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