+#ifndef lint
+static char sccsid[] = "@(#)n2.c 1.1 (CWI) 85/07/17";
+#endif lint
+
+#include "tdef.h"
+#include <sgtty.h>
+extern
+#include "d.h"
+extern
+#include "v.h"
+#ifdef NROFF
+extern
+#include "tw.h"
+#endif
+#include "s.h"
+#include <setjmp.h>
+
+/*
+troff2.c
+
+output, cleanup
+*/
+
+#include "ext.h"
+extern jmp_buf sjbuf;
+int toolate;
+int error;
+
+pchar(i)
+tchar i;
+{
+ int j;
+ static int hx = 0; /* records if have seen HX */
+
+ if (hx) {
+ hx = 0;
+ j = absmot(i);
+ if (isnmot(i)) {
+ if (j > dip->blss)
+ dip->blss = j;
+ } else {
+ if (j > dip->alss)
+ dip->alss = j;
+ ralss = dip->alss;
+ }
+ return;
+ }
+ if (ismot(i)) {
+ pchar1(i);
+ return;
+ }
+ switch (j = cbits(i)) {
+ case 0:
+ case IMP:
+ case RIGHT:
+ case LEFT:
+ return;
+ case HX:
+ hx = 1;
+ return;
+ case PRESC:
+ if (dip == &d[0])
+ j = eschar; /* fall through */
+ default:
+ setcbits(i, trtab[j]);
+ }
+ pchar1(i);
+}
+
+
+pchar1(i)
+tchar i;
+{
+ register j, *k;
+ static int seendraw;
+
+ j = cbits(i);
+ if (dip != &d[0]) {
+ wbf(i);
+ dip->op = offset;
+ return;
+ }
+ if (!tflg && !print) {
+ if (j == '\n')
+ dip->alss = dip->blss = 0;
+ return;
+ }
+ if (no_out || j == FILLER)
+ return;
+ if (tflg) { /* transparent mode, undiverted */
+ fprintf(ptid, "%c", j);
+ return;
+ }
+#ifndef NROFF
+ if (ascii) {
+ if (ismot(i)) {
+ if(!seendraw) {
+ oput(' ');
+ }
+ return;
+ }
+ if (j < 0177 && j >= 040) {
+ if(!seendraw) {
+ oput(j);
+ return;
+ } else {
+ switch(j) {
+ case DRAWCIRCLE: oputs("CIRCLE");
+ break;
+ case DRAWELLIPSE: oputs("ELLIPSE");
+ break;
+ case DRAWLINE: oputs("LINE");
+ break;
+ case DRAWWIG: oputs("SPLINE");
+ break;
+ case DRAWARC: oputs("ARC");
+ break;
+ case '.':
+ if(seendraw == 2)
+ seendraw = 0;
+ else
+ seendraw++;
+ break;
+ default: oputs("UNKNOWN");
+ break;
+ }
+ return;
+ }
+ }
+ if( j < 040) {
+ switch(j) {
+ case SLANT:
+ case CHARHT:
+ case WORDSP:
+ case HX:
+ case FONTPOS: /* creeps in as well */
+ return;
+ case DRAWFCN:
+ seendraw++;
+ oputs("DRAWFUNCTION ");
+ return;
+ case '\n':
+ oput(j);
+ return;
+ default:
+ fprintf(stderr,"Unknown 0%o function\n",
+ j);
+ return;
+ }
+ }
+
+ if (j == HYPHEN || j == MINUS)
+ oput('-');
+ else if (j == LIG_FI)
+ oputs("fi");
+ else if (j == LIG_FL)
+ oputs("fl");
+ else if (j == LIG_FF)
+ oputs("ff");
+ else if (j == LIG_FFI)
+ oputs("ffi");
+ else if (j == LIG_FFL)
+ oputs("ffl");
+ else if (j == NARSP || j == HNARSP || j == WORDSP)
+ ; /* nothing at all */
+ else {
+ oput('\\');
+ oput('(');
+ oput(chname[chtab[j-128]]);
+ oput(chname[chtab[j-128]+1]);
+ }
+ } else
+#endif
+ ptout(i);
+}
+
+
+oput(i)
+char i;
+{
+ *obufp++ = i;
+ if (obufp >= &obuf[OBUFSZ])
+ flusho();
+}
+
+
+oputs(i)
+register char *i;
+{
+ while (*i != 0)
+ oput(*i++);
+}
+
+
+flusho()
+{
+ if (obufp == obuf)
+ return;
+ if (no_out == 0) {
+ if (!toolate) {
+ toolate++;
+#ifdef NROFF
+ if (t.bset || t.breset) {
+ if (ttysave == -1) {
+ gtty(1, &ttys);
+ ttysave = ttys.sg_flags;
+ }
+ ttys.sg_flags &= ~t.breset;
+ ttys.sg_flags |= t.bset;
+ stty(1, &ttys);
+ }
+ {
+ char *p = t.twinit;
+ while (*p++)
+ ;
+ write(ptid, t.twinit, p - t.twinit - 1);
+ }
+#endif
+ }
+ toolate += write(ptid, obuf, obufp - obuf);
+ }
+ obufp = obuf;
+}
+
+
+done(x)
+int x;
+{
+ register i;
+
+ error |= x;
+ level = 0;
+ app = ds = lgf = 0;
+ if (i = em) {
+ donef = -1;
+ em = 0;
+ if (control(i, 0))
+ longjmp(sjbuf, 1);
+ }
+ if (!nfo)
+ done3(0);
+ mflg = 0;
+ dip = &d[0];
+ if (woff)
+ wbt((tchar)0);
+ if (pendw)
+ getword(1);
+ pendnf = 0;
+ if (donef == 1)
+ done1(0);
+ donef = 1;
+ ip = 0;
+ frame = stk;
+ nxf = frame + 1;
+ if (!ejf)
+ tbreak();
+ nflush++;
+ eject((struct s *)0);
+ longjmp(sjbuf, 1);
+}
+
+
+done1(x)
+int x;
+{
+ error |= x;
+ if (v.nl) {
+ trap = 0;
+ eject((struct s *)0);
+ longjmp(sjbuf, 1);
+ }
+ if (nofeed) {
+ ptlead();
+ flusho();
+ done3(0);
+ } else {
+ if (!gflag)
+ pttrailer();
+ done2(0);
+ }
+}
+
+
+done2(x)
+int x;
+{
+ ptlead();
+#ifndef NROFF
+ if (!ascii)
+ ptstop();
+#endif
+ flusho();
+ done3(x);
+}
+
+done3(x)
+int x;
+{
+ error |= x;
+ signal(SIGINT, SIG_IGN);
+ signal(SIGTERM, SIG_IGN);
+ unlink(unlkp);
+#ifdef NROFF
+ twdone();
+#endif
+ if (quiet) {
+ ttys.sg_flags |= ECHO;
+ stty(0, &ttys);
+ }
+ if (ascii)
+ mesg(1);
+ exit(error);
+}
+
+
+edone(x)
+int x;
+{
+ frame = stk;
+ nxf = frame + 1;
+ ip = 0;
+ done(x);
+}
+
+
+
+casepi()
+{
+ register i;
+ int id[2];
+
+ if (toolate || skip() || !getname() || pipe(id) == -1 || (i = fork()) == -1) {
+ fprintf(stderr, "Pipe not created.\n");
+ return;
+ }
+ ptid = id[1];
+ if (i > 0) {
+ close(id[0]);
+ toolate++;
+ pipeflg++;
+ return;
+ }
+ close(0);
+ dup(id[0]);
+ close(id[1]);
+ execl(nextf, nextf, 0);
+ fprintf(stderr, "Cannot exec %s\n", nextf);
+ exit(-4);
+}
projects / unix-history / commitdiff