| 1 | #include "tdef.h" |
| 2 | #include <sgtty.h> |
| 3 | extern |
| 4 | #include "d.h" |
| 5 | extern |
| 6 | #include "v.h" |
| 7 | extern |
| 8 | #include "tw.h" |
| 9 | /* |
| 10 | nroff10.c |
| 11 | |
| 12 | Device interfaces |
| 13 | */ |
| 14 | |
| 15 | extern int lss; |
| 16 | extern char obuf[]; |
| 17 | extern char *obufp; |
| 18 | extern int xfont; |
| 19 | extern int esc; |
| 20 | extern int lead; |
| 21 | extern int oline[]; |
| 22 | extern int *olinep; |
| 23 | extern int ulfont; |
| 24 | extern int esct; |
| 25 | extern int sps; |
| 26 | extern int ics; |
| 27 | extern int ttysave; |
| 28 | extern struct sgttyb ttys; |
| 29 | extern char termtab[]; |
| 30 | extern int ptid; |
| 31 | extern int waitf; |
| 32 | extern int pipeflg; |
| 33 | extern int eqflg; |
| 34 | extern int hflg; |
| 35 | extern int tabtab[]; |
| 36 | extern int ascii; |
| 37 | extern int xxx; |
| 38 | int dtab; |
| 39 | int bdmode; |
| 40 | int plotmode; |
| 41 | |
| 42 | ptinit(){ |
| 43 | register i, j; |
| 44 | register char **p; |
| 45 | char *q; |
| 46 | int x[8]; |
| 47 | extern char *setbrk(); |
| 48 | |
| 49 | if((i = open(termtab,0)) < 0){ |
| 50 | prstr("Cannot open "); |
| 51 | prstr(termtab); |
| 52 | prstr("\n"); |
| 53 | exit(-1); |
| 54 | } |
| 55 | read(i,(char *)x,8*sizeof(int)); |
| 56 | read(i,(char *)&t.bset,j = sizeof(int)*((int *)&t.zzz - &t.bset)); |
| 57 | x[2] -= j; |
| 58 | q = setbrk(x[2]); |
| 59 | lseek(i,(long)t.twinit+8*sizeof(int),0); |
| 60 | i = read(i,q,x[2]); |
| 61 | j = q - t.twinit; |
| 62 | for(p = &t.twinit; p < &t.zzz; p++){ |
| 63 | if(*p)*p += j;else *p = ""; |
| 64 | } |
| 65 | sps = EM; |
| 66 | ics = EM*2; |
| 67 | dtab = 8 * t.Em; |
| 68 | for(i=0; i<16; i++)tabtab[i] = dtab * (i+1); |
| 69 | if(eqflg)t.Adj = t.Hor; |
| 70 | } |
| 71 | twdone(){ |
| 72 | obufp = obuf; |
| 73 | oputs(t.twrest); |
| 74 | flusho(); |
| 75 | if(pipeflg){ |
| 76 | close(ptid); |
| 77 | wait(&waitf); |
| 78 | } |
| 79 | if(ttysave != -1) { |
| 80 | ttys.sg_flags = ttysave; |
| 81 | stty(1, &ttys); |
| 82 | } |
| 83 | } |
| 84 | ptout(i) |
| 85 | int i; |
| 86 | { |
| 87 | *olinep++ = i; |
| 88 | if(olinep >= &oline[LNSIZE])olinep--; |
| 89 | if((i&CMASK) != '\n')return; |
| 90 | olinep--; |
| 91 | lead += dip->blss + lss - t.Newline; |
| 92 | dip->blss = 0; |
| 93 | esct = esc = 0; |
| 94 | if(olinep>oline){ |
| 95 | move(); |
| 96 | ptout1(); |
| 97 | oputs(t.twnl); |
| 98 | }else{ |
| 99 | lead += t.Newline; |
| 100 | move(); |
| 101 | } |
| 102 | lead += dip->alss; |
| 103 | dip->alss = 0; |
| 104 | olinep = oline; |
| 105 | } |
| 106 | ptout1() |
| 107 | { |
| 108 | register i, k; |
| 109 | register char *codep; |
| 110 | extern char *plot(); |
| 111 | int *q, w, j, phyw; |
| 112 | |
| 113 | for(q=oline; q<olinep; q++){ |
| 114 | if((i = *q) & MOT){ |
| 115 | j = i & ~MOTV; |
| 116 | if(i & NMOT)j = -j; |
| 117 | if(i & VMOT)lead += j; |
| 118 | else esc += j; |
| 119 | continue; |
| 120 | } |
| 121 | if((k = (i & CMASK)) <= 040){ |
| 122 | switch(k){ |
| 123 | case ' ': /*space*/ |
| 124 | esc += t.Char; |
| 125 | break; |
| 126 | } |
| 127 | continue; |
| 128 | } |
| 129 | codep = t.codetab[k-32]; |
| 130 | w = t.Char * (*codep++ & 0177); |
| 131 | phyw = w; |
| 132 | if(i&ZBIT)w = 0; |
| 133 | if(*codep && (esc || lead))move(); |
| 134 | esct += w; |
| 135 | if(i&074000)xfont = (i>>9) & 03; |
| 136 | if(*t.bdon & 0377){ |
| 137 | if(!bdmode && (xfont == 2)){ |
| 138 | oputs(t.bdon); |
| 139 | bdmode++; |
| 140 | } |
| 141 | if(bdmode && (xfont != 2)){ |
| 142 | oputs(t.bdoff); |
| 143 | bdmode = 0; |
| 144 | } |
| 145 | } |
| 146 | if(xfont == ulfont){ |
| 147 | for(k=w/t.Char;k>0;k--)oput('_'); |
| 148 | for(k=w/t.Char;k>0;k--)oput('\b'); |
| 149 | } |
| 150 | while(*codep != 0){ |
| 151 | if(*codep & 0200){ |
| 152 | codep = plot(codep); |
| 153 | oputs(t.plotoff); |
| 154 | oput(' '); |
| 155 | }else{ |
| 156 | if(plotmode)oputs(t.plotoff); |
| 157 | *obufp++ = *codep++; |
| 158 | if(obufp == (obuf + OBUFSZ + ascii - 1))flusho(); |
| 159 | /* oput(*codep++);*/ |
| 160 | } |
| 161 | } |
| 162 | if(!w)for(k=phyw/t.Char;k>0;k--)oput('\b'); |
| 163 | } |
| 164 | } |
| 165 | char *plot(x) |
| 166 | char *x; |
| 167 | { |
| 168 | register int i; |
| 169 | register char *j, *k; |
| 170 | |
| 171 | if(!plotmode)oputs(t.ploton); |
| 172 | k = x; |
| 173 | if((*k & 0377) == 0200)k++; |
| 174 | for(; *k; k++){ |
| 175 | if(*k & 0200){ |
| 176 | if(*k & 0100){ |
| 177 | if(*k & 040)j = t.up; else j = t.down; |
| 178 | }else{ |
| 179 | if(*k & 040)j = t.left; else j = t.right; |
| 180 | } |
| 181 | if(!(i = *k & 037))return(++k); |
| 182 | while(i--)oputs(j); |
| 183 | }else oput(*k); |
| 184 | } |
| 185 | return(k); |
| 186 | } |
| 187 | move(){ |
| 188 | register k; |
| 189 | register char *i, *j; |
| 190 | char *p, *q; |
| 191 | int iesct, dt; |
| 192 | |
| 193 | iesct = esct; |
| 194 | if(esct += esc)i = "\0"; else i = "\n\0"; |
| 195 | j = t.hlf; |
| 196 | p = t.right; |
| 197 | q = t.down; |
| 198 | if(lead){ |
| 199 | if(lead < 0){ |
| 200 | lead = -lead; |
| 201 | i = t.flr; |
| 202 | /* if(!esct)i = t.flr; else i = "\0";*/ |
| 203 | j = t.hlr; |
| 204 | q = t.up; |
| 205 | } |
| 206 | if(*i & 0377){ |
| 207 | k = lead/t.Newline; |
| 208 | lead = lead%t.Newline; |
| 209 | while(k--)oputs(i); |
| 210 | } |
| 211 | if(*j & 0377){ |
| 212 | k = lead/t.Halfline; |
| 213 | lead = lead%t.Halfline; |
| 214 | while(k--)oputs(j); |
| 215 | } |
| 216 | else { /* no half-line forward, not at line begining */ |
| 217 | k = lead/t.Newline; |
| 218 | lead = lead%t.Newline; |
| 219 | if (k>0) esc=esct; |
| 220 | i = "\n"; |
| 221 | while (k--) oputs(i); |
| 222 | } |
| 223 | } |
| 224 | if(esc){ |
| 225 | if(esc < 0){ |
| 226 | esc = -esc; |
| 227 | j = "\b"; |
| 228 | p = t.left; |
| 229 | }else{ |
| 230 | j = " "; |
| 231 | if(hflg)while((dt = dtab - (iesct%dtab)) <= esc){ |
| 232 | if(dt%t.Em)break; |
| 233 | oput(TAB); |
| 234 | esc -= dt; |
| 235 | iesct += dt; |
| 236 | } |
| 237 | } |
| 238 | k = esc/t.Em; |
| 239 | esc = esc%t.Em; |
| 240 | while(k--)oputs(j); |
| 241 | } |
| 242 | if((*t.ploton & 0377) && (esc || lead)){ |
| 243 | if(!plotmode)oputs(t.ploton); |
| 244 | esc /= t.Hor; |
| 245 | lead /= t.Vert; |
| 246 | while(esc--)oputs(p); |
| 247 | while(lead--)oputs(q); |
| 248 | oputs(t.plotoff); |
| 249 | } |
| 250 | esc = lead = 0; |
| 251 | } |
| 252 | ptlead(){move();} |
| 253 | dostop(){ |
| 254 | char junk; |
| 255 | |
| 256 | flusho(); |
| 257 | read(2,&junk,1); |
| 258 | } |