+#include "tdef.h"
+extern
+#include "d.h"
+extern
+#include "v.h"
+#ifdef NROFF
+extern
+#include "tw.h"
+#endif
+#include "s.h"
+#ifdef NROFF
+#define GETCH gettch
+#endif
+#ifndef NROFF
+#define GETCH getch
+#endif
+
+/*
+troff7.c
+
+text
+*/
+
+extern struct s *frame, *stk;
+extern struct s *ejl;
+
+extern int pl;
+extern int trap;
+extern int flss;
+extern int npnflg;
+extern int npn;
+extern int stop;
+extern int nflush;
+extern int ejf;
+extern int ascii;
+extern int donef;
+extern int nc;
+extern int wch;
+extern int dpn;
+extern int ndone;
+extern int lss;
+extern int pto;
+extern int pfrom;
+extern int print;
+extern int nlist[NTRAP];
+extern int mlist[NTRAP];
+extern int *pnp;
+extern int nb;
+extern int ic;
+extern int icf;
+extern int ics;
+extern int ne;
+extern int ll;
+extern int un;
+extern int un1;
+extern int in;
+extern int ls;
+extern int spread;
+extern int totout;
+extern int nwd;
+extern int *pendw;
+extern int *linep;
+extern int line[];
+extern int lastl;
+extern int ch;
+extern int ce;
+extern int fi;
+extern int nlflg;
+extern int pendt;
+extern int sps;
+extern int adsp;
+extern int pendnf;
+extern int over;
+extern int adrem;
+extern int nel;
+extern int ad;
+extern int ohc;
+extern int hyoff;
+extern int nhyp;
+extern int spflg;
+extern int word[];
+extern int *wordp;
+extern int wne;
+extern int chbits;
+extern int cwidth;
+extern int widthp;
+extern int hyf;
+extern int xbitf;
+extern int vflag;
+extern int ul;
+extern int cu;
+extern int font;
+extern int sfont;
+extern int it;
+extern int itmac;
+extern int *hyptr[NHYP];
+extern int **hyp;
+extern int *wdstart, *wdend;
+extern int lnmod;
+extern int admod;
+extern int nn;
+extern int nms;
+extern int ndf;
+extern int ni;
+extern int nform;
+extern int lnsize;
+extern int po;
+extern int ulbit;
+extern int *vlist;
+extern int nrbits;
+extern int nmbits;
+extern char trtab[];
+extern int xxx;
+int brflg;
+
+tbreak(){
+ register *i, j, pad;
+ int res;
+
+ trap = 0;
+ if(nb)return;
+ if((dip == d) && (v.nl == -1)){
+ newline(1);
+ return;
+ }
+ if(!nc){
+ setnel();
+ if(!wch)return;
+ if(pendw)getword(1);
+ movword();
+ }else if(pendw && !brflg){
+ getword(1);
+ movword();
+ }
+ *linep = dip->nls = 0;
+#ifdef NROFF
+ if(dip == d)horiz(po);
+#endif
+ if(lnmod)donum();
+ lastl = ne;
+ if(brflg != 1){
+ totout = 0;
+ }else if(ad){
+ if((lastl = (ll - un)) < ne)lastl = ne;
+ }
+ if(admod && ad && (brflg != 2)){
+ lastl = ne;
+ adsp = adrem = 0;
+#ifdef NROFF
+ if(admod == 1)un += quant(nel/2,t.Adj);
+#endif
+#ifndef NROFF
+ if(admod == 1)un += nel/2;
+#endif
+ else if(admod ==2)un += nel;
+ }
+ totout++;
+ brflg = 0;
+ if((lastl+un) > dip->maxl)dip->maxl = (lastl+un);
+ horiz(un);
+#ifdef NROFF
+ if(adrem%t.Adj)res = t.Hor; else res = t.Adj;
+#endif
+ for(i = line;nc > 0;){
+ if(((j = *i++) & CMASK) == ' '){
+ pad = 0;
+ do{
+ pad += width(j);
+ nc--;
+ }while(((j = *i++) & CMASK) == ' ');
+ i--;
+ pad += adsp;
+ --nwd;
+ if(adrem){
+ if(adrem < 0){
+#ifdef NROFF
+ pad -= res;
+ adrem += res;
+ }else if((totout&01) ||
+ ((adrem/res)>=(nwd))){
+ pad += res;
+ adrem -= res;
+#endif
+#ifndef NROFF
+ pad--;
+ adrem++;
+ }else{
+ pad++;
+ adrem--;
+#endif
+ }
+ }
+ horiz(pad);
+ }else{
+ pchar(j);
+ nc--;
+ }
+ }
+ if(ic){
+ if((j = ll - un - lastl + ics) > 0)horiz(j);
+ pchar(ic);
+ }
+ if(icf)icf++;
+ else ic = 0;
+ ne = nwd = 0;
+ un = in;
+ setnel();
+ newline(0);
+ if(dip != d){if(dip->dnl > dip->hnl)dip->hnl = dip->dnl;}
+ else{if(v.nl > dip->hnl)dip->hnl = v.nl;}
+ for(j=ls-1; (j >0) && !trap; j--)newline(0);
+ spread = 0;
+}
+donum(){
+ register i, nw;
+ extern pchar();
+
+ nrbits = nmbits;
+ nw = width('1' | nrbits);
+ if(nn){
+ nn--;
+ goto d1;
+ }
+ if(v.ln%ndf){
+ v.ln++;
+ d1:
+ un += nw*(3+nms+ni);
+ return;
+ }
+ i = 0;
+ if(v.ln<100)i++;
+ if(v.ln<10)i++;
+ horiz(nw*(ni+i));
+ nform = 0;
+ fnumb(v.ln,pchar);
+ un += nw*nms;
+ v.ln++;
+}
+text(){
+ register i;
+ static int spcnt;
+
+ nflush++;
+ if((dip == d) && (v.nl == -1)){newline(1); return;}
+ setnel();
+ if(ce || !fi){
+ nofill();
+ return;
+ }
+ if(pendw)goto t4;
+ if(pendt)if(spcnt)goto t2; else goto t3;
+ pendt++;
+ if(spcnt)goto t2;
+ while(((i = GETCH()) & CMASK) == ' ')spcnt++;
+ if(nlflg){
+ t1:
+ nflush = pendt = ch = spcnt = 0;
+ callsp();
+ return;
+ }
+ ch = i;
+ if(spcnt){
+ t2:
+ tbreak();
+ if(nc || wch)goto rtn;
+ un += spcnt*sps;
+ spcnt = 0;
+ setnel();
+ if(trap)goto rtn;
+ if(nlflg)goto t1;
+ }
+t3:
+ if(spread)goto t5;
+ if(pendw || !wch)
+ t4:
+ if(getword(0))goto t6;
+ if(!movword())goto t3;
+t5:
+ if(nlflg)pendt = 0;
+ adsp = adrem = 0;
+ if(ad){
+/* jfr */ if (nwd==1) adsp=nel; else adsp=nel/(nwd-1);
+#ifdef NROFF
+ adsp = (adsp/t.Adj)*t.Adj;
+#endif
+ adrem = nel - adsp*(nwd-1);
+ }
+ brflg = 1;
+ tbreak();
+ spread = 0;
+ if(!trap)goto t3;
+ if(!nlflg)goto rtn;
+t6:
+ pendt = 0;
+ ckul();
+rtn:
+ nflush = 0;
+}
+nofill(){
+ register i, j;
+
+ if(!pendnf){
+ over = 0;
+ tbreak();
+ if(trap)goto rtn;
+ if(nlflg){
+ ch = nflush = 0;
+ callsp();
+ return;
+ }
+ adsp = adrem = 0;
+ nwd = 10000;
+ }
+ while((j = ((i = GETCH()) & CMASK)) != '\n'){
+ if(j == ohc)continue;
+ if(j == CONT){
+ pendnf++;
+ nflush = 0;
+ flushi();
+ ckul();
+ return;
+ }
+ storeline(i,-1);
+ }
+ if(ce){
+ ce--;
+ if((i=quant(nel/2,HOR)) > 0)un += i;
+ }
+ if(!nc)storeline(FILLER,0);
+ brflg = 2;
+ tbreak();
+ ckul();
+rtn:
+ pendnf = nflush = 0;
+}
+callsp(){
+ register i;
+
+ if(flss)i = flss; else i = lss;
+ flss = 0;
+ casesp(i);
+}
+ckul(){
+ if(ul && (--ul == 0)){
+ cu = 0;
+ font = sfont;
+ mchbits();
+ }
+ if(it && (--it == 0) && itmac)control(itmac,0);
+}
+storeline(c,w){
+ register i;
+
+ if((c & CMASK) == JREG){
+ if((i=findr(c>>BYTE)) != -1)vlist[i] = ne;
+ return;
+ }
+ if(linep >= (line + lnsize - 1)){
+ if(!over){
+ prstrfl("Line overflow.\n");
+ over++;
+ c = 0343;
+ w = -1;
+ goto s1;
+ }
+ return;
+ }
+s1:
+ if(w == -1)w = width(c);
+ ne += w;
+ nel -= w;
+/*
+ * if( cu && !(c & MOT) && (trtab[(c & CMASK)] == ' '))
+ * c = ((c & ~ulbit) & ~CMASK) | '_';
+ */
+ *linep++ = c;
+ nc++;
+}
+newline(a)
+int a;
+{
+ register i, j, nlss;
+ int opn;
+
+ if(a)goto nl1;
+ if(dip != d){
+ j = lss;
+ pchar1(FLSS);
+ if(flss)lss = flss;
+ i = lss + dip->blss;
+ dip->dnl += i;
+ pchar1(i);
+ pchar1('\n');
+ lss = j;
+ dip->blss = flss = 0;
+ if(dip->alss){
+ pchar1(FLSS);
+ pchar1(dip->alss);
+ pchar1('\n');
+ dip->dnl += dip->alss;
+ dip->alss = 0;
+ }
+ if(dip->ditrap && !dip->ditf &&
+ (dip->dnl >= dip->ditrap) && dip->dimac)
+ if(control(dip->dimac,0)){trap++; dip->ditf++;}
+ return;
+ }
+ j = lss;
+ if(flss)lss = flss;
+ nlss = dip->alss + dip->blss + lss;
+ v.nl += nlss;
+#ifndef NROFF
+ if(ascii){dip->alss = dip->blss = 0;}
+#endif
+ pchar1('\n');
+ flss = 0;
+ lss = j;
+ if(v.nl < pl)goto nl2;
+nl1:
+ ejf = dip->hnl = v.nl = 0;
+ ejl = frame;
+ if(donef){
+ if((!nc && !wch) || ndone)done1(0);
+ ndone++;
+ donef = 0;
+ if(frame == stk)nflush++;
+ }
+ opn = v.pn;
+ v.pn++;
+ if(npnflg){
+ v.pn = npn;
+ npn = npnflg = 0;
+ }
+nlpn:
+ if(v.pn == pfrom){
+ print++;
+ pfrom = -1;
+ }else if(opn == pto){
+ print = 0;
+ opn = -1;
+ chkpn();
+ goto nlpn;
+ }
+ if(stop && print){
+ dpn++;
+ if(dpn >= stop){
+ dpn = 0;
+ dostop();
+ }
+ }
+nl2:
+ trap = 0;
+ if(v.nl == 0){
+ if((j = findn(0)) != NTRAP)
+ trap = control(mlist[j],0);
+ } else if((i = findt(v.nl-nlss)) <= nlss){
+ if((j = findn1(v.nl-nlss+i)) == NTRAP){
+ prstrfl("Trap botch.\n");
+ done2(-5);
+ }
+ trap = control(mlist[j],0);
+ }
+}
+findn1(a)
+int a;
+{
+ register i, j;
+
+ for(i=0; i<NTRAP; i++){
+ if(mlist[i]){
+ if((j = nlist[i]) < 0)j += pl;
+ if(j == a)break;
+ }
+ }
+ return(i);
+}
+chkpn(){
+ pto = *(pnp++);
+ pfrom = pto & ~MOT;
+ if(pto == -1){
+ flusho();
+ done1(0);
+ }
+ if(pto & MOT){
+ pto &= ~MOT;
+ print++;
+ pfrom = 0;
+ }
+}
+findt(a)
+int a;
+{
+ register i, j, k;
+
+ k = 32767;
+ if(dip != d){
+ if(dip->dimac && ((i = dip->ditrap -a) > 0))k = i;
+ return(k);
+ }
+ for(i=0; i<NTRAP; i++){
+ if(mlist[i]){
+ if((j = nlist[i]) < 0)j += pl;
+ if((j -= a) <= 0)continue;
+ if(j < k)k = j;
+ }
+ }
+ i = pl - a;
+ if(k > i)k = i;
+ return(k);
+}
+findt1(){
+ register i;
+
+ if(dip != d)i = dip->dnl;
+ else i = v.nl;
+ return(findt(i));
+}
+eject(a)
+struct s *a;
+{
+ register savlss;
+
+ if(dip != d)return;
+ ejf++;
+ if(a)ejl = a;
+ else ejl = frame;
+ if(trap)return;
+e1:
+ savlss = lss;
+ lss = findt(v.nl);
+ newline(0);
+ lss = savlss;
+ if(v.nl && !trap)goto e1;
+}
+movword(){
+ register i, w, *wp;
+ int savwch, hys;
+
+ over = 0;
+ wp = wordp;
+ if(!nwd){
+ while(((i = *wp++) & CMASK) == ' '){
+ wch--;
+ wne -= width(i);
+ }
+ wp--;
+ }
+ if((wne > nel) &&
+ !hyoff && hyf &&
+ (!nwd || (nel > 3*sps)) &&
+ (!(hyf & 02) || (findt1() > lss))
+ )hyphen(wp);
+ savwch = wch;
+ hyp = hyptr;
+ nhyp = 0;
+ while(*hyp && (*hyp <= wp))hyp++;
+ while(wch){
+ if((hyoff != 1) && (*hyp == wp)){
+ hyp++;
+ if(!wdstart ||
+ ((wp > (wdstart+1)) &&
+ (wp < wdend) &&
+ (!(hyf & 04) || (wp < (wdend-1))) &&
+ (!(hyf & 010) || (wp > (wdstart+2)))
+ )
+ ){
+ nhyp++;
+ storeline(IMP,0);
+ }
+ }
+ i = *wp++;
+ w = width(i);
+ wne -= w;
+ wch--;
+ storeline(i,w);
+ }
+ if(nel >= 0){
+ nwd++;
+ return(0);
+ }
+ xbitf = 1;
+ hys = width(0200); /*hyphen*/
+m1:
+ if(!nhyp){
+ if(!nwd)goto m3;
+ if(wch == savwch)goto m4;
+ }
+ if(*--linep != IMP)goto m5;
+ if(!(--nhyp))
+ if(!nwd)goto m2;
+ if(nel < hys){
+ nc--;
+ goto m1;
+ }
+m2:
+ if(((i = *(linep-1) & CMASK) != '-') &&
+ (i != 0203)
+ ){
+ *linep = (*(linep-1) & ~CMASK) | 0200;
+ w = width(*linep);
+ nel -= w;
+ ne += w;
+ linep++;
+/*
+ hsend();
+*/
+ }
+m3:
+ nwd++;
+m4:
+ wordp = wp;
+ return(1);
+m5:
+ nc--;
+ w = width(*linep);
+ ne -= w;
+ nel += w;
+ wne += w;
+ wch++;
+ wp--;
+ goto m1;
+}
+horiz(i)
+int i;
+{
+ vflag = 0;
+ if(i)pchar(makem(i));
+}
+setnel(){
+ if(!nc){
+ linep = line;
+ if(un1 >= 0){
+ un = un1;
+ un1 = -1;
+ }
+ nel = ll - un;
+ ne = adsp = adrem = 0;
+ }
+}
+getword(x)
+int x;
+{
+ register i, j, swp;
+ int noword;
+
+ noword = 0;
+ if(x)if(pendw){
+ *pendw = 0;
+ goto rtn;
+ }
+ if(wordp = pendw)goto g1;
+ hyp = hyptr;
+ wordp = word;
+ over = wne = wch = 0;
+ hyoff = 0;
+ while(1){
+ j = (i = GETCH()) & CMASK;
+ if(j == '\n'){
+ wne = wch = 0;
+ noword = 1;
+ goto rtn;
+ }
+ if(j == ohc){
+ hyoff = 1;
+ continue;
+ }
+ if(j == ' '){
+ storeword(i,width(i)); /* XXX */
+ continue;
+ }
+ break;
+ }
+ swp = widthp;
+ storeword(' ' | chbits, -1);
+ if(spflg){
+ storeword(' ' | chbits, -1);
+ spflg = 0;
+ }
+ widthp = swp;
+g0:
+ if(j == CONT){
+ pendw = wordp;
+ nflush = 0;
+ flushi();
+ return(1);
+ }
+ if(hyoff != 1){
+ if(j == ohc){
+ hyoff = 2;
+ *hyp++ = wordp;
+ if(hyp > (hyptr+NHYP-1))hyp = hyptr+NHYP-1;
+ goto g1;
+ }
+ if((j == '-') ||
+ (j == 0203) /*3/4 Em dash*/
+ )if(wordp > word+1){
+ hyoff = 2;
+ *hyp++ = wordp + 1;
+ if(hyp > (hyptr+NHYP-1))hyp = hyptr+NHYP-1;
+ }
+ }
+ storeword(i,width(i)); /* XXX */
+g1:
+ j = (i = GETCH()) & CMASK;
+ if(j != ' '){
+ if(j != '\n')goto g0;
+ j = *(wordp-1) & CMASK;
+ if((j == '.') ||
+ (j == '!') ||
+ (j == '?'))spflg++;
+ }
+ *wordp = 0;
+rtn:
+ wdstart = 0;
+ wordp = word;
+ pendw = 0;
+ *hyp++ = 0;
+ setnel();
+ return(noword);
+}
+storeword(c,w)
+int c, w;
+{
+
+ if(wordp >= &word[WDSIZE - 1]){
+ if(!over){
+ prstrfl("Word overflow.\n");
+ over++;
+ c = 0343;
+ w = -1;
+ goto s1;
+ }
+ return;
+ }
+s1:
+ if(w == -1)w = width(c);
+ wne += w;
+ *wordp++ = c;
+ wch++;
+}
+#ifdef NROFF
+extern char trtab[];
+gettch(){
+ register int i, j;
+
+ if(!((i = getch()) & MOT) && (i & ulbit)){
+ j = i&CMASK;
+ if(cu && (trtab[j] == ' '))
+ i = ((i & ~ulbit)& ~CMASK) | '_';
+ if(!cu && (j>32) && (j<0370) && !(*t.codetab[j-32] & 0200))
+ i &= ~ulbit;
+ }
+ return(i);
+}
+#endif
projects / unix-history / commitdiff