+/*
+ * Simulate typesetter on 4014
+*/
+
+#include <signal.h>
+#include <stdio.h>
+
+#define oput(c) if (pgskip==0) putchar(c); else;
+#define MAXY 3071
+#define US 037
+#define GS 035
+#define ESC 033
+#define FF 014
+#define DBL 0200
+
+int pl = 11*144;
+int mpy = 1;
+int div = 1;
+char *ap;
+int ch;
+int nonumb;
+int psize = 10;
+int dfact = 1;
+int esc;
+int escd;
+int verd;
+int esct;
+int osize = 02;
+int size = 02;
+int rx;
+int xx;
+int yy = MAXY+62+48;
+int leadtot = -31;
+int ohy = -1;
+int ohx = -1;
+int oxb = -1;
+int oly = -1;
+int olx = -1;
+int tflag;
+int railmag;
+int lead;
+int skip;
+int pgskip;
+int ksize = ';';
+int mcase;
+int stab[] = {010,0,01,07,02,03,04,05,0211,06,0212,0213,0214,0215,0216,0217};
+int rtab[] = {6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 28, 36, 18};
+int ktab[] = {';',';',';',';',';',';',':',':','9','9','9','9','8','8','8','9'};
+int first = 1;
+int alpha;
+extern char *asctab[128];
+extern char *spectab[128];
+int erase = 1;
+int (*sigint)();
+int (*sigquit)();
+
+main(argc,argv)
+int argc;
+char **argv;
+{
+ register i, j;
+ register char *k;
+ extern ex();
+
+ while((--argc > 0) && ((++argv)[0][0]=='-')){
+ switch(argv[0][1]){
+ case 'p':
+ ap = &argv[0][2];
+ dfact = 72;
+ if(i = atoi())pl = i/3;
+ continue;
+ case 't':
+ tflag++;
+ continue;
+ case 's':
+ ap = &argv[0][2];
+ dfact = 1;
+ pgskip = atoi();
+ continue;
+ default:
+ dfact = 1;
+ ap = &argv[0][1];
+ if(i = atoi())mpy = i;
+ if(i = atoi())div = i;
+ continue;
+ }
+ }
+ if(argc){
+ if (freopen(argv[0], "r", stdin) == NULL) {
+ fprintf(stderr, "tc: cannot open %s\n", argv[0]);
+ exit(1);
+ }
+ }
+ sigint = signal(SIGINT, ex);
+ sigquit = signal(SIGQUIT, SIG_IGN);
+ while((i = getchar()) != EOF){
+ if(!i)continue;
+ if(i & 0200){
+ esc += (~i) & 0177;
+ continue;
+ }
+ if(esc){
+ if(escd)esc = -esc;
+ esct += esc;
+ xx += (esc*mpy + rx)/div;
+ rx = (esc*mpy + rx)%div;
+ sendpt();
+ esc = 0;
+ }
+ switch(i){
+ case 0100: /*init*/
+ escd = verd = mcase = railmag = xx = 0;
+ yy = MAXY + 48;
+ leadtot = -31;
+ ohy = oxb = oly = ohx = olx = -1;
+ oput(US);
+ fflush(stdout);
+ if(!first && !tflag)kwait();
+ if(first){
+ first = 0;
+ yy += 62;
+ }
+ init();
+ continue;
+ case 0101: /*lower rail*/
+ railmag &= ~01;
+ continue;
+ case 0102: /*upper rail*/
+ railmag |= 01;
+ continue;
+ case 0103: /*upper mag*/
+ railmag |= 02;
+ continue;
+ case 0104: /*lower mag*/
+ railmag &= ~02;
+ continue;
+ case 0105: /*lower case*/
+ mcase = 0;
+ continue;
+ case 0106: /*upper case*/
+ mcase = 0100;
+ continue;
+ case 0107: /*escape forward*/
+ escd = 0;
+ continue;
+ case 0110: /*escape backward*/
+ escd = 1;
+ continue;
+ case 0111: /*stop*/
+ continue;
+ case 0112: /*lead forward*/
+ verd = 0;
+ continue;
+ case 0113: /*undefined*/
+ continue;
+ case 0114: /*lead backward*/
+ verd = 1;
+ continue;
+ case 0115: /*undefined*/
+ case 0116:
+ case 0117:
+ continue;
+ }
+ if((i & 0340) == 0140){ /*leading*/
+ lead = (~i) & 037;
+ if(verd)lead = -lead;
+ if((leadtot += lead) > pl){
+ leadtot = lead;
+ oput(US);
+ fflush(stdout);
+ if(!tflag)kwait();
+ yy = MAXY;
+ if(pgskip)--pgskip;
+ init();
+ continue;
+ }
+ if(skip)continue;
+ if((yy -= (lead<<1)) < 0){
+ skip++;
+ yy = 0;
+ }else sendpt();
+ continue;
+ }
+ if((i & 0360) == 0120){ /*size change*/
+ i &= 017;
+ for(j = 0; i != (stab[j] & 017); j++);
+ osize = size;
+ size = stab[j];
+ psize = rtab[j];
+ ksize = ktab[j];
+ oput(ESC);
+ oput(ksize);
+ i = 0;
+ if(!(osize & DBL) && (size & DBL))i = -55;
+ else if((osize & DBL) && !(size & DBL))i = 55;
+ if(escd)i = -i;
+ esc += i;
+ continue;
+ }
+ if(i & 0300)continue;
+ i = (i & 077) | mcase;
+ if(railmag != 03)k = asctab[i];
+ else k = spectab[i];
+ if(alpha)sendpt();
+ if(*k!='\0'){
+ oput(US);
+ while(*k & 0377)oput(*k++);
+ alpha++;
+ continue;
+ }else{
+ if(railmag != 03){
+ switch(i){
+ case 0124: lig("fi"); break;
+ case 0125: lig("fl"); break;
+ case 0126: lig("ff"); break;
+ case 0130: lig("ffl"); break;
+ case 0131: lig("ffi"); break;
+ default: continue;
+ }
+ }
+ continue;
+ }
+ }
+ ex();
+}
+lig(x)
+char *x;
+{
+ register i, j;
+ register char *k;
+
+ j = 0;
+ k = x;
+ oput(US);
+ oput(*k++);
+ i = psize * 8 * mpy / (div * 6); /* 8/36 em */
+ while(*k){
+ xx += i;
+ j += i;
+ sendpt();
+ oput(US);
+ oput(*k++);
+ }
+ xx -= j;
+ sendpt();
+}
+init(){
+
+ fflush(stdout);
+ if(erase){
+ oput(ESC);
+ oput(FF);
+ }else erase = 1;
+ oput(ESC);
+ oput(ksize);
+ /*delay about a second*/
+/* let the system do it...
+ for(i = 960; i > 0; i--)oput(GS);
+*/
+ skip = 0;
+ sendpt();
+}
+ex(){
+ yy = MAXY;
+ xx = 0;
+ sendpt();
+ oput(ESC);
+ oput(';');
+ oput(US);
+ fflush(stdout);
+ exit(0);
+}
+kwait(){
+ char buf[128]; char *bptr; char c;
+ if(pgskip) return;
+next:
+ bptr=buf;
+ while((c=readch())&&(c!='\n')) *bptr++=c;
+ *bptr=0;
+ if(bptr!=buf){
+ bptr = buf;
+ if(*bptr == '!'){callunix(&buf[1]); fputs("!\n", stderr); goto next;}
+ else switch(*bptr++){
+ case 'e':
+ erase = 0;
+ goto next;
+ case 's':
+ ap = &buf[1];
+ dfact = 1;
+ pgskip = atoi() + 1;
+ goto next;
+ default:
+ fputs("?\n", stderr);
+ goto next;
+ }
+ }
+ else if (c==0) ex();
+ else return;
+}
+callunix(line)
+char line[];
+{
+ int rc, status, unixpid;
+ if( (unixpid=fork())==0 ) {
+ signal(SIGINT,sigint); signal(SIGQUIT,sigquit);
+ close(0); dup(2);
+ execl("/bin/sh", "-sh", "-c", line, 0);
+ exit(255);
+ }
+ else if(unixpid == -1)
+ return;
+ else{ signal(SIGINT, SIG_IGN); signal(SIGQUIT, SIG_IGN);
+ while( (rc = wait(&status)) != unixpid && rc != -1 ) ;
+ signal(SIGINT,ex); signal(SIGQUIT,sigquit);
+ }
+}
+readch(){
+ char c;
+ if (read(2,&c,1)<1) c=0;
+ return(c);
+}
+sendpt(){
+ int hy,xb,ly,hx,lx;
+
+ oput(GS);
+ hy = ((yy>>7) & 037);
+ xb = ((xx & 03) + ((yy<<2) & 014) & 017);
+ ly = ((yy>>2) & 037);
+ hx = ((xx>>7) & 037);
+ lx = ((xx>>2) & 037);
+ if(hy != ohy)oput(hy | 040);
+ if(xb != oxb)oput(xb | 0140);
+ if((ly != oly) || (hx != ohx) || (xb != oxb))
+ oput(ly | 0140);
+ if(hx != ohx)oput(hx | 040);
+ oput(lx | 0100);
+ ohy = hy;
+ oxb = xb;
+ oly = ly;
+ ohx = hx;
+ olx = lx;
+ alpha = 0;
+ return;
+}
+atoi()
+{
+ register i, j, acc;
+ int field, digits;
+ long dd;
+ long tscale();
+
+ field = digits = acc = 0;
+a1:
+ while(((j = (i = getch()) - '0') >= 0) && (j <= 9)){
+ field++;
+ digits++;
+ acc = 10*acc + j;
+ }
+ if(i == '.'){
+ field++;
+ digits = 0;
+ goto a1;
+ }
+ if(!(ch = i))ch = 'x';
+ dd = tscale(acc);
+ acc = dd;
+ if((field != digits) && (digits > 0)){
+ j = 1;
+ while(digits--)j *= 10;
+ acc = dd/j;
+ }
+ nonumb = !field;
+ ch = 0;
+ return(acc);
+}
+long tscale(n)
+int n;
+{
+ register i, j;
+
+ switch(i = getch()){
+ case 'u':
+ j = 1;
+ break;
+ case 'p': /*Points*/
+ j = 6;
+ break;
+ case 'i': /*Inches*/
+ j = 432;
+ break;
+ case 'c': /*Centimeters; should be 170.0787*/
+ j = 170;
+ break;
+ case 'P': /*Picas*/
+ j = 72;
+ break;
+ default:
+ j = dfact;
+ ch = i;
+ }
+ return((long)n*j);
+}
+getch(){
+ register i;
+
+ if(ch){
+ i = ch;
+ ch = 0;
+ return(i);
+ }
+ return(*ap++);
+}
+
+char *asctab[128] {
+"\0", /*blank*/
+"h", /*h*/
+"t", /*t*/
+"n", /*n*/
+"m", /*m*/
+"l", /*l*/
+"i", /*i*/
+"z", /*z*/
+"s", /*s*/
+"d", /*d*/
+"b", /*b*/
+"x", /*x*/
+"f", /*f*/
+"j", /*j*/
+"u", /*u*/
+"k", /*k*/
+"\0", /*blank*/
+"p", /*p*/
+"-", /*_ 3/4 em dash*/
+";", /*;*/
+"\0", /*blank*/
+"a", /*a*/
+"_", /*rule*/
+"c", /*c*/
+"`", /*` open*/
+"e", /*e*/
+"\'", /*' close*/
+"o", /*o*/
+"\0", /*1/4*/
+"r", /*r*/
+"\0", /*1/2*/
+"v", /*v*/
+"-", /*- hyphen*/
+"w", /*w*/
+"q", /*q*/
+"/", /*/*/
+".", /*.*/
+"g", /*g*/
+"\0", /*3/4*/
+",", /*,*/
+"&", /*&*/
+"y", /*y*/
+"\0", /*blank*/
+"%", /*%*/
+"\0", /*blank*/
+"Q", /*Q*/
+"T", /*T*/
+"O", /*O*/
+"H", /*H*/
+"N", /*N*/
+"M", /*M*/
+"L", /*L*/
+"R", /*R*/
+"G", /*G*/
+"I", /*I*/
+"P", /*P*/
+"C", /*C*/
+"V", /*V*/
+"E", /*E*/
+"Z", /*Z*/
+"D", /*D*/
+"B", /*B*/
+"S", /*S*/
+"Y", /*Y*/
+"\0", /*blank*/
+"F", /*F*/
+"X", /*X*/
+"A", /*A*/
+"W", /*W*/
+"J", /*J*/
+"U", /*U*/
+"K", /*K*/
+"0", /*0*/
+"1", /*1*/
+"2", /*2*/
+"3", /*3*/
+"4", /*4*/
+"5", /*5*/
+"6", /*6*/
+"7", /*7*/
+"8", /*8*/
+"9", /*9*/
+"*", /***/
+"-", /*minus*/
+"", /*fi*/
+"", /*fl*/
+"", /*ff*/
+"\033\016Z\bM\033\017", /*cent sign*/
+"", /*ffl*/
+"", /*ffi*/
+"(", /*(*/
+")", /*)*/
+"[", /*[*/
+"]", /*]*/
+"\033\016J\033\017", /*degree*/
+"\033\016M\b_\033\017", /*dagger*/
+"=", /*=*/
+"\033\016O\b&\033\017", /*registered*/
+":", /*:*/
+"+", /*+*/
+"\0", /*blank*/
+"!", /*!*/
+"\033\016O\b~\033\017", /*bullet*/
+"?", /*?*/
+"\'", /*foot mark*/
+"|", /*|*/
+"\0", /*blank*/
+"\033\016O\b#\033\017", /*copyright*/
+"\033\016L\033\017", /*square*/
+"$" }; /*$*/
+
+char *spectab[128] = {
+"\0", /*blank*/
+"\033\016(\bM\033\017", /*psi*/
+"\033\016o\b_\033\017", /*theta*/
+"v\b)", /*nu*/
+"\033\016V\b,\033\017", /*mu*/
+"\033\016)\b?\033\017", /*lambda*/
+"\033\016I\033\017", /*iota*/
+"S\b\033\016Z\033\017", /*zeta*/
+"o\b\'", /*sigma*/
+"o\b\033\0165\033\017", /*delta*/
+"\033\016b\033\017", /*beta*/
+"\033\016e\bc\033\017", /*xi*/
+"j\b\033\016C\033\017", /*eta*/
+"\033\016O\bM\033\017", /*phi*/
+"\033\016(\033\017", /*upsilon*/
+"\033\016k\033\017", /*kappa*/
+"\0", /*blank*/
+"T\b\033\016S\033\017", /*pi*/
+"@", /*at-sign*/
+"\033\016U\033\017", /*down arrow*/
+"\0", /*blank*/
+"\033\016A\033\017", /*alpha*/
+"|", /*or*/
+"l\b/", /*chi*/
+"\"", /*"*/
+"\033\016E\033\017", /*epsilon*/
+"=", /*=*/
+"\033\016O\033\017", /*omicron*/
+"\033\016[\033\017", /*left arrow*/
+"\033\016R\033\017", /*rho*/
+"\033\016Y\033\017", /*up arrow*/
+"\033\016N\033\017", /*tau*/
+"_", /*underrule*/
+"\\", /*\*/
+"I\b\033\016(\033\017", /*Psi*/
+"\033\016O\bJ\033\017", /*bell system sign*/
+"\033\016W\bX\033\017", /*infinity*/
+"`\b/", /*gamma*/
+"\033\016X\bF\033\017", /*improper superset*/
+"\033\016A\033\017", /*proportional to*/
+"\033\016\\\b]\033\017", /*right hand*/
+"\033\016W\033\017", /*omega*/
+"\0", /*blank*/
+"\033\016G\033\017", /*gradient*/
+"\0", /*blank*/
+"I\033\016\bO\033\017", /*Phi*/
+"O\b=", /*Theta*/
+"O\b_", /*Omega*/
+"\033\016V\033\017", /*cup (union)*/
+"\033\016@\033\017", /*root en*/
+"s", /*terminal sigma*/
+"\033\016)\bK\033\017", /*Lambda*/
+"-", /*minus*/
+"\033\016S\bK\033\017", /*Gamma*/
+"\033\016i\033\017", /*integral sign*/
+"\033\016t\b'\033\017", /*Pi*/
+"\033\016Z\033\017", /*subset of*/
+"\033\016X\033\017", /*superset of*/
+"\033\016T\033\017", /*approximates*/
+"o\b`", /*partial derivative*/
+"\033\016H\033\017", /*Delta*/
+"\033\016I\b'\033\017", /*square root*/
+">\b\033\016F\b@\033\017", /*Sigma*/
+"\033\016T\bF\033\017", /*approx =*/
+"\0", /*blank*/
+">", /*>*/
+"\033\016_\bF\b@\033\017", /*Xi*/
+"<", /*<*/
+"/", /*slash (longer)*/
+"\033\016C\033\017", /*cap (intersection)*/
+"\033\016y\033\017", /*Upsilon*/
+"\033\016|\033\017", /*not*/
+"|", /*right ceiling (rt of ")*/
+"|", /*left top (of big curly)*/
+"|", /*bold vertical*/
+"|", /*left center of big curly bracket*/
+"|", /*left bottom*/
+"|", /*right top*/
+"|", /*right center of big curly bracket*/
+"|", /*right bot*/
+"|", /*right floor (rb of ")*/
+"|", /*left floor (left bot of big sq bract)*/
+"|", /*left ceiling (lt of ")*/
+"\033\016=\033\017", /*multiply*/
+"\033\016+\033\017", /*divide*/
+"+\b_", /*plus-minus*/
+"\033\016$\033\017", /*<=*/
+"\033\016^\033\017", /*>=*/
+"=\b_", /*identically equal*/
+"\033\016*\033\017", /*not equal*/
+"{", /*{*/
+"}", /*}*/
+"\'", /*' acute accent*/
+"`", /*` grave accent*/
+"^", /*^*/
+"#", /*sharp*/
+"\033\016|\b[\033\017", /*left hand*/
+"\033\016c\b_\033\017", /*member of*/
+"~", /*~*/
+"\033\016O\b/\033\017", /*empty set*/
+"\0", /*blank*/
+"\033\016%\bM\033\017", /*dbl dagger*/
+"|", /*box rule*/
+"*", /*asterisk*/
+"\033\016Z\bF\033\017", /*improper subset*/
+"\033\016O\033\017", /*circle*/
+"\0", /*blank*/
+"+", /*eqn plus*/
+"\033\016]\033\017", /*right arrow*/
+"g\b\033\016C\033\017" }; /*section mark*/
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