home *** CD-ROM | disk | FTP | other *** search
- /* tu.c: draws horizontal lines */
- # include "t..c"
- makeline(i,c,lintype)
- {
- int cr, type, shortl;
- type = thish(i,c);
- if (type==0) return;
- cr=c;
- shortl = (table[i][c].col[0]=='\\');
- if (c>0 && !shortl && thish(i,c-1) == type)return;
- if (shortl==0)
- for(cr=c; cr < ncol && (ctype(i,cr)=='s'||type==thish(i,cr)); cr++);
- else
- for(cr=c+1; cr<ncol && ctype(i,cr)=='s'; cr++);
- drawline(i, c, cr-1, lintype, 0, shortl);
- }
- fullwide(i, lintype)
- {
- int cr, cl;
- if (!pr1403)
- fprintf(tabout, ".nr %d \\n(.v\n.vs \\n(.vu-\\n(.sp\n", SVS);
- cr= 0;
- while (cr<ncol)
- {
- cl=cr;
- while (i>0 && vspand(prev(i),cl,1))
- cl++;
- for(cr=cl; cr<ncol; cr++)
- if (i>0 && vspand(prev(i),cr,1))
- break;
- if (cl<ncol)
- drawline(i,cl,(cr<ncol?cr-1:cr),lintype,1,0);
- }
- fprintf(tabout, "\n");
- if (!pr1403)
- fprintf(tabout, ".vs \\n(%du\n", SVS);
- }
-
- drawline(i, cl, cr, lintype, noheight, shortl)
- {
- char *exhr, *exhl;
- int lcount, ln, linpos, oldpos, nodata, lnch;
- lcount=0;
- exhr=exhl= "";
- switch(lintype)
- {
- case '-': lcount=1;break;
- case '=': lcount = pr1403? 1 : 2; break;
- case SHORTLINE: lcount=1; break;
- }
- if (lcount<=0) return;
- nodata = cr-cl>=ncol || noheight || allh(i);
- if (!nodata)
- fprintf(tabout, "\\v'-.5m'");
- for(ln=oldpos=0; ln<lcount; ln++)
- {
- linpos = 2*ln - lcount +1;
- if (linpos != oldpos)
- fprintf(tabout, "\\v'%dp'", linpos-oldpos);
- oldpos=linpos;
- if (shortl==0)
- {
- tohcol(cl);
- if (lcount>1)
- {
- switch(interv(i,cl))
- {
- case TOP: exhl = ln==0 ? "1p" : "-1p"; break;
- case BOT: exhl = ln==1 ? "1p" : "-1p"; break;
- case THRU: exhl = "1p"; break;
- }
- if (exhl[0])
- fprintf(tabout, "\\h'%s'", exhl);
- }
- else if (lcount==1)
- {
- switch(interv(i,cl))
- {
- case TOP: case BOT: exhl = "-1p"; break;
- case THRU: exhl = "1p"; break;
- }
- if (exhl[0])
- fprintf(tabout, "\\h'%s'", exhl);
- }
- if (lcount>1)
- {
- switch(interv(i,cr+1))
- {
- case TOP: exhr = ln==0 ? "-1p" : "+1p"; break;
- case BOT: exhr = ln==1 ? "-1p" : "+1p"; break;
- case THRU: exhr = "-1p"; break;
- }
- }
- else if (lcount==1)
- {
- switch(interv(i,cr+1))
- {
- case TOP: case BOT: exhr = "+1p"; break;
- case THRU: exhr = "-1p"; break;
- }
- }
- }
- else
- fprintf(tabout, "\\h'|\\n(%du'", cl+CLEFT);
- fprintf(tabout, "\\s\\n(%d",LSIZE);
- if (linsize)
- fprintf(tabout, "\\v'-\\n(%dp/6u'", LSIZE);
- if (shortl)
- fprintf(tabout, "\\l'|\\n(%du'", cr+CRIGHT);
- else
- {
- lnch = "\\(ul";
- if (pr1403)
- lnch = lintype==2 ? "=" : "\\(ru";
- if (cr+1>=ncol)
- fprintf(tabout, "\\l'|\\n(TWu%s%s'", exhr,lnch);
- else
- fprintf(tabout, "\\l'(|\\n(%du+|\\n(%du)/2u%s%s'", cr+CRIGHT,
- cr+1+CLEFT, exhr, lnch);
- }
- if (linsize)
- fprintf(tabout, "\\v'\\n(%dp/6u'", LSIZE);
- fprintf(tabout, "\\s0");
- }
- if (oldpos!=0)
- fprintf(tabout, "\\v'%dp'", -oldpos);
- if (!nodata)
- fprintf(tabout, "\\v'+.5m'");
- }
- getstop()
- {
- int i,c,k,junk, stopp;
- stopp=1;
- for(i=0; i<MAXLIN; i++)
- linestop[i]=0;
- for(i=0; i<nlin; i++)
- for(c=0; c<ncol; c++)
- {
- k = left(i,c,&junk);
- if (k>=0 && linestop[k]==0)
- linestop[k]= ++stopp;
- }
- if (boxflg || allflg || dboxflg)
- linestop[0]=1;
- }
- left(i,c, lwidp)
- int *lwidp;
- {
- int kind, li, lj;
- /* returns -1 if no line to left */
- /* returns number of line where it starts */
- /* stores into lwid the kind of line */
- *lwidp=0;
- kind = lefdata(i,c);
- if (kind==0) return(-1);
- if (i+1<nlin)
- if (lefdata(next(i),c)== kind) return(-1);
- while (i>=0 && lefdata(i,c)==kind)
- i=prev(li=i);
- if (prev(li)== -1) li=0;
- *lwidp=kind;
- for(lj= i+1; lj<li; lj++)
- if (instead[lj] && strcmp(instead[lj], ".TH")==0)
- return(li);
- for(i= i+1; i<li; i++)
- if (fullbot[i])
- li=i;
- return(li);
- }
- lefdata(i,c)
- {
- int ck;
- if (i>=nlin) i=nlin-1;
- if (ctype(i,c) == 's')
- {
- for(ck=c; ctype(i,ck)=='s'; ck--);
- if (thish(i,ck)==0)
- return(0);
- }
- i =stynum[i];
- i = lefline[i][c];
- if (i>0) return(i);
- if (dboxflg && c==0) return(2);
- if (allflg)return(1);
- if (boxflg && c==0) return(1);
- return(0);
- }
- next(i)
- {
- while (i+1 <nlin)
- {
- i++;
- if (!fullbot[i] && !instead[i]) break;
- }
- return(i);
- }
- prev(i)
- {
- while (--i >=0 && (fullbot[i] || instead[i]))
- ;
- return(i);
- }
-