| 1 | #ifndef lint |
| 2 | static char sccsid[] = "@(#)tu.c 4.2 %G%"; |
| 3 | #endif |
| 4 | |
| 5 | /* tu.c: draws horizontal lines */ |
| 6 | # include "t..c" |
| 7 | makeline(i,c,lintype) |
| 8 | { |
| 9 | int cr, type, shortl; |
| 10 | type = thish(i,c); |
| 11 | if (type==0) return; |
| 12 | cr=c; |
| 13 | shortl = (table[i][c].col[0]=='\\'); |
| 14 | if (c>0 && !shortl && thish(i,c-1) == type)return; |
| 15 | if (shortl==0) |
| 16 | for(cr=c; cr < ncol && (ctype(i,cr)=='s'||type==thish(i,cr)); cr++); |
| 17 | else |
| 18 | for(cr=c+1; cr<ncol && ctype(i,cr)=='s'; cr++); |
| 19 | drawline(i, c, cr-1, lintype, 0, shortl); |
| 20 | } |
| 21 | fullwide(i, lintype) |
| 22 | { |
| 23 | int cr, cl; |
| 24 | if (!pr1403) |
| 25 | fprintf(tabout, ".nr %d \\n(.v\n.vs \\n(.vu-\\n(.sp\n", SVS); |
| 26 | cr= 0; |
| 27 | while (cr<ncol) |
| 28 | { |
| 29 | cl=cr; |
| 30 | while (i>0 && vspand(prev(i),cl,1)) |
| 31 | cl++; |
| 32 | for(cr=cl; cr<ncol; cr++) |
| 33 | if (i>0 && vspand(prev(i),cr,1)) |
| 34 | break; |
| 35 | if (cl<ncol) |
| 36 | drawline(i,cl,(cr<ncol?cr-1:cr),lintype,1,0); |
| 37 | } |
| 38 | fprintf(tabout, "\n"); |
| 39 | if (!pr1403) |
| 40 | fprintf(tabout, ".vs \\n(%du\n", SVS); |
| 41 | } |
| 42 | |
| 43 | drawline(i, cl, cr, lintype, noheight, shortl) |
| 44 | { |
| 45 | char *exhr, *exhl; |
| 46 | int lcount, ln, linpos, oldpos, nodata, lnch; |
| 47 | lcount=0; |
| 48 | exhr=exhl= ""; |
| 49 | switch(lintype) |
| 50 | { |
| 51 | case '-': lcount=1;break; |
| 52 | case '=': lcount = pr1403? 1 : 2; break; |
| 53 | case SHORTLINE: lcount=1; break; |
| 54 | } |
| 55 | if (lcount<=0) return; |
| 56 | nodata = cr-cl>=ncol || noheight || allh(i); |
| 57 | if (!nodata) |
| 58 | fprintf(tabout, "\\v'-.5m'"); |
| 59 | for(ln=oldpos=0; ln<lcount; ln++) |
| 60 | { |
| 61 | linpos = 2*ln - lcount +1; |
| 62 | if (linpos != oldpos) |
| 63 | fprintf(tabout, "\\v'%dp'", linpos-oldpos); |
| 64 | oldpos=linpos; |
| 65 | if (shortl==0) |
| 66 | { |
| 67 | tohcol(cl); |
| 68 | if (lcount>1) |
| 69 | { |
| 70 | switch(interv(i,cl)) |
| 71 | { |
| 72 | case TOP: exhl = ln==0 ? "1p" : "-1p"; break; |
| 73 | case BOT: exhl = ln==1 ? "1p" : "-1p"; break; |
| 74 | case THRU: exhl = "1p"; break; |
| 75 | } |
| 76 | if (exhl[0]) |
| 77 | fprintf(tabout, "\\h'%s'", exhl); |
| 78 | } |
| 79 | else if (lcount==1) |
| 80 | { |
| 81 | switch(interv(i,cl)) |
| 82 | { |
| 83 | case TOP: case BOT: exhl = "-1p"; break; |
| 84 | case THRU: exhl = "1p"; break; |
| 85 | } |
| 86 | if (exhl[0]) |
| 87 | fprintf(tabout, "\\h'%s'", exhl); |
| 88 | } |
| 89 | if (lcount>1) |
| 90 | { |
| 91 | switch(interv(i,cr+1)) |
| 92 | { |
| 93 | case TOP: exhr = ln==0 ? "-1p" : "+1p"; break; |
| 94 | case BOT: exhr = ln==1 ? "-1p" : "+1p"; break; |
| 95 | case THRU: exhr = "-1p"; break; |
| 96 | } |
| 97 | } |
| 98 | else if (lcount==1) |
| 99 | { |
| 100 | switch(interv(i,cr+1)) |
| 101 | { |
| 102 | case TOP: case BOT: exhr = "+1p"; break; |
| 103 | case THRU: exhr = "-1p"; break; |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | else |
| 108 | fprintf(tabout, "\\h'|\\n(%du'", cl+CLEFT); |
| 109 | fprintf(tabout, "\\s\\n(%d",LSIZE); |
| 110 | if (linsize) |
| 111 | fprintf(tabout, "\\v'-\\n(%dp/6u'", LSIZE); |
| 112 | if (shortl) |
| 113 | fprintf(tabout, "\\l'|\\n(%du'", cr+CRIGHT); |
| 114 | else |
| 115 | { |
| 116 | lnch = "\\(ul"; |
| 117 | if (pr1403) |
| 118 | lnch = lintype==2 ? "=" : "\\(ru"; |
| 119 | if (cr+1>=ncol) |
| 120 | fprintf(tabout, "\\l'|\\n(TWu%s%s'", exhr,lnch); |
| 121 | else |
| 122 | fprintf(tabout, "\\l'(|\\n(%du+|\\n(%du)/2u%s%s'", cr+CRIGHT, |
| 123 | cr+1+CLEFT, exhr, lnch); |
| 124 | } |
| 125 | if (linsize) |
| 126 | fprintf(tabout, "\\v'\\n(%dp/6u'", LSIZE); |
| 127 | fprintf(tabout, "\\s0"); |
| 128 | } |
| 129 | if (oldpos!=0) |
| 130 | fprintf(tabout, "\\v'%dp'", -oldpos); |
| 131 | if (!nodata) |
| 132 | fprintf(tabout, "\\v'+.5m'"); |
| 133 | } |
| 134 | getstop() |
| 135 | { |
| 136 | int i,c,k,junk, stopp; |
| 137 | stopp=1; |
| 138 | for(i=0; i<MAXLIN; i++) |
| 139 | linestop[i]=0; |
| 140 | for(i=0; i<nlin; i++) |
| 141 | for(c=0; c<ncol; c++) |
| 142 | { |
| 143 | k = left(i,c,&junk); |
| 144 | if (k>=0 && linestop[k]==0) |
| 145 | linestop[k]= ++stopp; |
| 146 | } |
| 147 | if (boxflg || allflg || dboxflg) |
| 148 | linestop[0]=1; |
| 149 | } |
| 150 | left(i,c, lwidp) |
| 151 | int *lwidp; |
| 152 | { |
| 153 | int kind, li, lj; |
| 154 | /* returns -1 if no line to left */ |
| 155 | /* returns number of line where it starts */ |
| 156 | /* stores into lwid the kind of line */ |
| 157 | *lwidp=0; |
| 158 | kind = lefdata(i,c); |
| 159 | if (kind==0) return(-1); |
| 160 | if (i+1<nlin) |
| 161 | if (lefdata(next(i),c)== kind) return(-1); |
| 162 | while (i>=0 && lefdata(i,c)==kind) |
| 163 | i=prev(li=i); |
| 164 | if (prev(li)== -1) li=0; |
| 165 | *lwidp=kind; |
| 166 | for(lj= i+1; lj<li; lj++) |
| 167 | if (instead[lj] && strcmp(instead[lj], ".TH")==0) |
| 168 | return(li); |
| 169 | for(i= i+1; i<li; i++) |
| 170 | if (fullbot[i]) |
| 171 | li=i; |
| 172 | return(li); |
| 173 | } |
| 174 | lefdata(i,c) |
| 175 | { |
| 176 | int ck; |
| 177 | if (i>=nlin) i=nlin-1; |
| 178 | if (ctype(i,c) == 's') |
| 179 | { |
| 180 | for(ck=c; ctype(i,ck)=='s'; ck--); |
| 181 | if (thish(i,ck)==0) |
| 182 | return(0); |
| 183 | } |
| 184 | i =stynum[i]; |
| 185 | i = lefline[i][c]; |
| 186 | if (i>0) return(i); |
| 187 | if (dboxflg && c==0) return(2); |
| 188 | if (allflg)return(1); |
| 189 | if (boxflg && c==0) return(1); |
| 190 | return(0); |
| 191 | } |
| 192 | next(i) |
| 193 | { |
| 194 | while (i+1 <nlin) |
| 195 | { |
| 196 | i++; |
| 197 | if (!fullbot[i] && !instead[i]) break; |
| 198 | } |
| 199 | return(i); |
| 200 | } |
| 201 | prev(i) |
| 202 | { |
| 203 | while (--i >=0 && (fullbot[i] || instead[i])) |
| 204 | ; |
| 205 | return(i); |
| 206 | } |