| 1 | #include "tdef.h" |
| 2 | extern |
| 3 | #include "d.h" |
| 4 | extern |
| 5 | #include "v.h" |
| 6 | |
| 7 | /* |
| 8 | troff6.c |
| 9 | |
| 10 | width functions, sizes and fonts |
| 11 | */ |
| 12 | |
| 13 | extern int eschar; |
| 14 | extern int widthp; |
| 15 | extern int ohc; |
| 16 | extern int xpts; |
| 17 | extern int xfont; |
| 18 | extern int code; |
| 19 | extern int smnt; |
| 20 | extern int setwdf; |
| 21 | extern int cs; |
| 22 | extern int ccs; |
| 23 | extern int spacesz; |
| 24 | extern char trtab[]; |
| 25 | extern int xbitf; |
| 26 | extern int mfont; |
| 27 | extern int mpts; |
| 28 | extern int pfont; |
| 29 | extern int ppts; |
| 30 | extern int oldbits; |
| 31 | extern int chbits; |
| 32 | extern int spbits; |
| 33 | extern int nonumb; |
| 34 | extern int noscale; |
| 35 | extern int font; |
| 36 | extern int font1; |
| 37 | extern int pts; |
| 38 | extern int pts1; |
| 39 | extern int apts; |
| 40 | extern int apts1; |
| 41 | extern int sps; |
| 42 | extern int nlflg; |
| 43 | extern int nform; |
| 44 | extern int dfact; |
| 45 | extern int lss; |
| 46 | extern int lss1; |
| 47 | extern int vflag; |
| 48 | extern int ch0; |
| 49 | extern int lg; |
| 50 | char fontfile[] = "/usr/lib/font/ftXX"; |
| 51 | int ffi = 16; |
| 52 | extern int bd; |
| 53 | extern int level; |
| 54 | extern int ch; |
| 55 | extern int res; |
| 56 | extern int ptid; |
| 57 | extern char W1[],W2[],W3[],W4[]; |
| 58 | extern int xxx; |
| 59 | int trflg; |
| 60 | char *fontab[] = {W1,W2,W3,W4}; |
| 61 | int fontlab[] = {'R','I','B','S',0}; |
| 62 | char pstab[] = {6,7,8,9,10,11,12,14,16,18,20,22,24,28,36,0}; |
| 63 | char psctab[] = {010,000,001,007,002,003,004,005,0211,006, |
| 64 | 0212,0213,0214,0215,0216,0}; |
| 65 | int cstab[4], ccstab[4]; |
| 66 | int bdtab[4]; |
| 67 | int sbold = 0; |
| 68 | int spsz = 0; |
| 69 | struct fz { |
| 70 | char sign; |
| 71 | char size; |
| 72 | int inc; |
| 73 | } fz[4]; |
| 74 | |
| 75 | width(c) |
| 76 | int c; |
| 77 | { |
| 78 | register i,j,k; |
| 79 | |
| 80 | j = c; |
| 81 | k = 0; |
| 82 | if(j & MOT){ |
| 83 | if(j & VMOT)goto rtn; |
| 84 | k = j & ~MOTV; |
| 85 | if(j & NMOT)k = -k; |
| 86 | goto rtn; |
| 87 | } |
| 88 | if((i = (j & CMASK)) == 010){ |
| 89 | k = -widthp; |
| 90 | goto rtn; |
| 91 | } |
| 92 | if(i == PRESC)i = eschar; |
| 93 | if((i == ohc) || |
| 94 | (i >= 0370))goto rtn; |
| 95 | if((j>>BYTE) == oldbits){ |
| 96 | xfont = pfont; |
| 97 | xpts = ppts; |
| 98 | }else xbits(j); |
| 99 | if(j & ZBIT)goto rtn; |
| 100 | if(!trflg)i = trtab[i] & BMASK; |
| 101 | if((i -= 32) < 0)goto rtn; |
| 102 | k = getcw(i); |
| 103 | if(bd)k += bd - 1; |
| 104 | if(cs)k = cs; |
| 105 | widthp = k; |
| 106 | rtn: |
| 107 | xbitf = trflg = 0; |
| 108 | return(k); |
| 109 | } |
| 110 | getcw(i) |
| 111 | int i; |
| 112 | { |
| 113 | register j,k; |
| 114 | register char *p; |
| 115 | int x; |
| 116 | extern char codetab[]; |
| 117 | |
| 118 | bd = 0; |
| 119 | if((code = codetab[i]) & 0200){ |
| 120 | if(smnt){ |
| 121 | p = fontab[smnt-1]; |
| 122 | if(xfont == (sbold-1))bd = bdtab[smnt-1]; |
| 123 | goto g0; |
| 124 | } |
| 125 | code = 0; |
| 126 | k = 36; |
| 127 | goto g1; |
| 128 | } |
| 129 | p = fontab[xfont]; |
| 130 | g0: |
| 131 | if(!i)k = spacesz; |
| 132 | else k = *(p + i) & BMASK; |
| 133 | if(setwdf)v.ct |= ((k>>6) & 3); |
| 134 | g1: |
| 135 | k = (j = (k&077)*(xpts&077))/6; |
| 136 | if((j%6) >= 3)k++; |
| 137 | if(cs = cstab[xfont]){ |
| 138 | if(ccs = ccstab[xfont])x = ccs; else x = xpts; |
| 139 | cs = (j = (cs&077)*(x&077))/6; |
| 140 | if((j%6) >= 3)cs++; |
| 141 | } |
| 142 | if(!bd)bd = bdtab[xfont]; |
| 143 | return(k); |
| 144 | } |
| 145 | xbits(i) |
| 146 | int i; |
| 147 | { |
| 148 | register j, k; |
| 149 | |
| 150 | /* |
| 151 | if((j = i >> BYTE) == oldbits){ |
| 152 | xfont = pfont; |
| 153 | xpts = ppts; |
| 154 | goto rtn; |
| 155 | } |
| 156 | */ |
| 157 | j = i >> BYTE; |
| 158 | xfont = (j>>1) & 03; |
| 159 | if(k = (j>>3) & 017){ |
| 160 | xpts = pstab[--k]; |
| 161 | if(psctab[k] < 0)xpts |= DBL; |
| 162 | oldbits = j; |
| 163 | pfont = xfont; |
| 164 | ppts = xpts; |
| 165 | goto rtn; |
| 166 | } |
| 167 | switch(xbitf){ |
| 168 | case 0: |
| 169 | xfont = font; |
| 170 | xpts = pts; |
| 171 | break; |
| 172 | case 1: |
| 173 | xfont = pfont; |
| 174 | xpts = ppts; |
| 175 | break; |
| 176 | case 2: |
| 177 | xfont = mfont; |
| 178 | xpts = mpts; |
| 179 | } |
| 180 | rtn: |
| 181 | xbitf = 0; |
| 182 | } |
| 183 | setch(){ |
| 184 | register i,*j,k; |
| 185 | extern int chtab[]; |
| 186 | |
| 187 | if((i = getrq()) == 0)return(0); |
| 188 | for(j=chtab;*j != i;j++)if(*(j++) == 0)return(0); |
| 189 | k = *(++j) | chbits; |
| 190 | /* |
| 191 | if((i & CMASK) == '*'){ |
| 192 | if(((i = find('R',fontlab)) < 0) && |
| 193 | ((i = find('G',fontlab)) < 0)) |
| 194 | return(k); |
| 195 | else return((k & ~(03<<(BYTE+1))) | (i<<(BYTE+1))); |
| 196 | } |
| 197 | */ |
| 198 | return(k); |
| 199 | } |
| 200 | find(i,j) |
| 201 | int i,j[]; |
| 202 | { |
| 203 | register k; |
| 204 | |
| 205 | if(((k = i-'0') >= 1) && (k <= 4) && (k != smnt))return(--k); |
| 206 | for(k=0; j[k] != i; k++)if(j[k] == 0)return(-1); |
| 207 | return(k); |
| 208 | } |
| 209 | casefz(){ |
| 210 | register i, j, k; |
| 211 | int savinc; |
| 212 | |
| 213 | k = 0; |
| 214 | fz0: |
| 215 | if(skip() || !(i = getrq()) || |
| 216 | ((j = find(i,fontlab)) == -1)){ |
| 217 | if(k)goto fz1; |
| 218 | else return; |
| 219 | } |
| 220 | if(j == (smnt-1)){ |
| 221 | k = smnt; |
| 222 | goto fz0; |
| 223 | } |
| 224 | if(k){ |
| 225 | spsz = j + 1; |
| 226 | j = k -1; |
| 227 | } |
| 228 | fz1: |
| 229 | if((j==font) && fz[j].inc)savinc = fz[j].inc; |
| 230 | else savinc = 0; |
| 231 | fz[j].inc = fz[j].sign = fz[j].size = 0; |
| 232 | if(skip()){ |
| 233 | if(k)spsz = 0; |
| 234 | goto fz2; |
| 235 | } |
| 236 | if(((i=((k=getch()) & CMASK)) == '+') || (i == '-'))fz[j].sign = i; |
| 237 | else{ |
| 238 | fz[j].sign = 0; |
| 239 | ch = k; |
| 240 | } |
| 241 | noscale++; |
| 242 | fz[j].size = atoi(); |
| 243 | noscale = 0; |
| 244 | fz2: |
| 245 | if(j==font)casps1(apts + savinc); |
| 246 | else if(j == smnt-1)mchbits(); |
| 247 | } |
| 248 | caseps(){ |
| 249 | register i; |
| 250 | |
| 251 | if(skip())i = apts1; |
| 252 | else{ |
| 253 | noscale++; |
| 254 | i = inumb(&apts); |
| 255 | noscale = 0; |
| 256 | if(nonumb)return; |
| 257 | } |
| 258 | casps1(i); |
| 259 | } |
| 260 | casps1(i) |
| 261 | int i; |
| 262 | { |
| 263 | if(i <= 0)return; |
| 264 | if(fz[font].size){ |
| 265 | i = getfz(font, i); |
| 266 | } |
| 267 | apts1 = apts; |
| 268 | apts = i; |
| 269 | pts1 = pts; |
| 270 | pts = findps(i & 077); |
| 271 | mchbits(); |
| 272 | } |
| 273 | findps(i) |
| 274 | int i; |
| 275 | { |
| 276 | register j, k; |
| 277 | |
| 278 | for(j=0; i > (k = pstab[j]);j++)if(!k){k=pstab[--j];break;} |
| 279 | if(psctab[j] < 0)k |= DBL; |
| 280 | return(k); |
| 281 | } |
| 282 | mchbits(){ |
| 283 | register i, j, k; |
| 284 | |
| 285 | spbits = 0; |
| 286 | i = pts & 077; |
| 287 | for(j=0; i > (k = pstab[j]);j++)if(!k){k=pstab[--j];break;} |
| 288 | chbits = (((++j)<<2) | font) << (BYTE + 1); |
| 289 | sps = width(' ' | chbits); |
| 290 | if(font == (spsz-1)){ |
| 291 | i = findps(getfz(smnt-1, apts + fz[font].inc)); |
| 292 | for(j=0; i > (k = pstab[j]);j++)if(!k){k=pstab[--j];break;} |
| 293 | spbits = (((++j)<<2) | font) << (BYTE + 1); |
| 294 | } |
| 295 | } |
| 296 | getfz(x,y) |
| 297 | int x, y; |
| 298 | { |
| 299 | register i, j, k; |
| 300 | |
| 301 | i = fz[x].size; |
| 302 | j = fz[x].sign; |
| 303 | if(i || j){ |
| 304 | if(j == '+')i += y; |
| 305 | else if(j == '-')i = y - i; |
| 306 | } |
| 307 | fz[x].inc = y - i; |
| 308 | return(i); |
| 309 | } |
| 310 | setps(){ |
| 311 | register i,j; |
| 312 | |
| 313 | if((((i=getch() & CMASK) == '+') || (i == '-')) && |
| 314 | (((j=(ch = getch() & CMASK) - '0') >= 0) && (j <= 9))){ |
| 315 | if(i == '-')j = -j; |
| 316 | ch = 0; |
| 317 | casps1(apts+j); |
| 318 | return; |
| 319 | } |
| 320 | if((i -= '0') == 0){ |
| 321 | casps1(apts1); |
| 322 | return; |
| 323 | } |
| 324 | if((i > 0) && (i <= 9)){ |
| 325 | if((i <= 3) && |
| 326 | ((j=(ch = getch() & CMASK) - '0') >= 0) && (j <= 9)){ |
| 327 | i = 10*i +j; |
| 328 | ch = 0; |
| 329 | } |
| 330 | casps1(i); |
| 331 | } |
| 332 | } |
| 333 | caseft(){ |
| 334 | skip(); |
| 335 | setfont(1); |
| 336 | } |
| 337 | setfont(a) |
| 338 | int a; |
| 339 | { |
| 340 | register i,j; |
| 341 | |
| 342 | if(a)i = getrq(); |
| 343 | else i = getsn(); |
| 344 | if(!i || (i == 'P')){ |
| 345 | j = font1; |
| 346 | goto s0; |
| 347 | } |
| 348 | if(i == 'S')return; |
| 349 | if((j = find(i,fontlab)) == -1)return; |
| 350 | s0: |
| 351 | font1 = font; |
| 352 | font = j; |
| 353 | i = 0; |
| 354 | if(fz[font1].size){ |
| 355 | i++; |
| 356 | casps1(apts + fz[font1].inc); |
| 357 | }else if(fz[font].size){ |
| 358 | i++; |
| 359 | casps1(apts); |
| 360 | } |
| 361 | if(!i)mchbits(); |
| 362 | } |
| 363 | setwd(){ |
| 364 | register i, base, wid; |
| 365 | int delim, em, k; |
| 366 | int savlevel, savhp, savapts, savapts1, savfont, savfont1, |
| 367 | savpts, savpts1; |
| 368 | |
| 369 | base = v.st = v.sb = wid = v.ct = 0; |
| 370 | if((delim = getch() & CMASK) & MOT)return; |
| 371 | savhp = v.hp; |
| 372 | savlevel = level; |
| 373 | v.hp = level = 0; |
| 374 | savapts = apts; |
| 375 | savapts1 = apts1; |
| 376 | savfont = font; |
| 377 | savfont1 = font1; |
| 378 | savpts = pts; |
| 379 | savpts1 = pts1; |
| 380 | setwdf++; |
| 381 | while((((i = getch()) & CMASK) != delim) && !nlflg){ |
| 382 | wid += width(i); |
| 383 | if(!(i & MOT)){ |
| 384 | em = (xpts & 077)*6; |
| 385 | }else if(i & VMOT){ |
| 386 | k = i & ~MOTV; |
| 387 | if(i & NMOT)k = -k; |
| 388 | base -= k; |
| 389 | em = 0; |
| 390 | }else continue; |
| 391 | if(base < v.sb)v.sb = base; |
| 392 | if((k=base + em) > v.st)v.st = k; |
| 393 | } |
| 394 | nform = 0; |
| 395 | setn1(wid); |
| 396 | v.hp = savhp; |
| 397 | level = savlevel; |
| 398 | apts = savapts; |
| 399 | apts1 = savapts1; |
| 400 | font = savfont; |
| 401 | font1 = savfont1; |
| 402 | pts = savpts; |
| 403 | pts1 = savpts1; |
| 404 | mchbits(); |
| 405 | setwdf = 0; |
| 406 | } |
| 407 | vmot(){ |
| 408 | dfact = lss; |
| 409 | vflag++; |
| 410 | return(mot()); |
| 411 | } |
| 412 | hmot(){ |
| 413 | dfact = 6 * (pts & 077); |
| 414 | return(mot()); |
| 415 | } |
| 416 | mot(){ |
| 417 | register i, j; |
| 418 | |
| 419 | j = HOR; |
| 420 | getch(); /*eat delim*/ |
| 421 | if(i = atoi()){ |
| 422 | if(vflag)j = VERT; |
| 423 | i = makem(quant(i,j)); |
| 424 | } |
| 425 | getch(); |
| 426 | vflag = 0; |
| 427 | dfact = 1; |
| 428 | return(i); |
| 429 | } |
| 430 | sethl(k) |
| 431 | int k; |
| 432 | { |
| 433 | register i; |
| 434 | |
| 435 | i = 3 * (pts & 077); |
| 436 | if(k == 'u')i = -i; |
| 437 | else if(k == 'r')i = -2*i; |
| 438 | vflag++; |
| 439 | i = makem(i); |
| 440 | vflag = 0; |
| 441 | return(i); |
| 442 | } |
| 443 | makem(i) |
| 444 | int i; |
| 445 | { |
| 446 | register j; |
| 447 | |
| 448 | if((j = i) < 0)j = -j; |
| 449 | j = (j & ~MOTV) | MOT; |
| 450 | if(i < 0)j |= NMOT; |
| 451 | if(vflag)j |= VMOT; |
| 452 | return(j); |
| 453 | } |
| 454 | getlg(i) |
| 455 | int i; |
| 456 | { |
| 457 | register j, k; |
| 458 | |
| 459 | switch((j = getch0()) & CMASK){ |
| 460 | case 'f': |
| 461 | if(lg!=2){switch((k =getch0()) & CMASK){ |
| 462 | case 'i': |
| 463 | j = 0214; |
| 464 | break; |
| 465 | case 'l': |
| 466 | j = 0215; |
| 467 | break; |
| 468 | default: |
| 469 | ch0 = k; |
| 470 | j = 0213; |
| 471 | } |
| 472 | }else j = 0213; |
| 473 | break; |
| 474 | case 'l': |
| 475 | j = 0212; |
| 476 | break; |
| 477 | case 'i': |
| 478 | j = 0211; |
| 479 | break; |
| 480 | default: |
| 481 | ch0 = j; |
| 482 | j = i; |
| 483 | } |
| 484 | return((i & ~CMASK) | j); |
| 485 | } |
| 486 | caselg(){ |
| 487 | |
| 488 | lg = 1; |
| 489 | if(skip())return; |
| 490 | lg = atoi(); |
| 491 | } |
| 492 | casefp(){ |
| 493 | register i, j, k; |
| 494 | int x; |
| 495 | |
| 496 | skip(); |
| 497 | if(((i = (getch() & CMASK) - '0' -1) < 0) || (i >3)){prstr("fp: bad font position\n"); return;} |
| 498 | if(skip() || !(j = getrq())){prstr("fp: no font name\n"); return;} |
| 499 | fontfile[ffi] = j & BMASK; |
| 500 | fontfile[ffi+1] = j>>BYTE; |
| 501 | if((k = open(fontfile,0)) < 0){ |
| 502 | prstr("Cannot open "); |
| 503 | c0: |
| 504 | prstr(fontfile); |
| 505 | prstr("\n"); |
| 506 | done(-1); |
| 507 | } |
| 508 | if(lseek(k,8L * sizeof(int),0) < 0)goto c1; |
| 509 | if(read(k,fontab[i],256-32) != 256-32){ |
| 510 | c1: |
| 511 | prstr("Cannot read "); |
| 512 | goto c0; |
| 513 | } |
| 514 | close(k); |
| 515 | if(i == (smnt-1)){smnt = 0; sbold = 0; spsz = 0;} |
| 516 | if((fontlab[i] = j) == 'S')smnt = i + 1; |
| 517 | bdtab[i] = cstab[i] = ccstab[i] = 0; |
| 518 | fz[i].inc = fz[i].sign = fz[i].size = 0; |
| 519 | if(ptid != 1){ |
| 520 | prstr("Mount font "); |
| 521 | prstr(&fontfile[ffi]); |
| 522 | prstr(" on "); |
| 523 | x = PAIR((i + '1'),0); |
| 524 | prstr((char *)&x); |
| 525 | prstr("\n"); |
| 526 | } |
| 527 | } |
| 528 | casecs(){ |
| 529 | register i, j; |
| 530 | |
| 531 | noscale++; |
| 532 | skip(); |
| 533 | if(!(i=getrq()) || |
| 534 | ((i = find(i,fontlab)) < 0))goto rtn; |
| 535 | skip(); |
| 536 | cstab[i] = atoi(); |
| 537 | skip(); |
| 538 | j = atoi(); |
| 539 | if(!nonumb)ccstab[i] = findps(j); |
| 540 | rtn: |
| 541 | noscale = 0; |
| 542 | } |
| 543 | casebd(){ |
| 544 | register i, j, k; |
| 545 | |
| 546 | k = 0; |
| 547 | bd0: |
| 548 | if(skip() || !(i = getrq()) || |
| 549 | ((j = find(i,fontlab)) == -1)){ |
| 550 | if(k)goto bd1; |
| 551 | else return; |
| 552 | } |
| 553 | if(j == (smnt-1)){ |
| 554 | k = smnt; |
| 555 | goto bd0; |
| 556 | } |
| 557 | if(k){ |
| 558 | sbold = j + 1; |
| 559 | j = k -1; |
| 560 | } |
| 561 | bd1: |
| 562 | skip(); |
| 563 | noscale++; |
| 564 | bdtab[j] = atoi(); |
| 565 | noscale = 0; |
| 566 | } |
| 567 | casevs(){ |
| 568 | register i; |
| 569 | |
| 570 | skip(); |
| 571 | vflag++; |
| 572 | dfact = 6; /*default scaling is points!*/ |
| 573 | res = VERT; |
| 574 | i = inumb(&lss); |
| 575 | if(nonumb)i = lss1; |
| 576 | if(i < VERT)i = VERT; |
| 577 | lss1 = lss; |
| 578 | lss = i; |
| 579 | } |
| 580 | casess(){ |
| 581 | register i; |
| 582 | |
| 583 | noscale++; |
| 584 | skip(); |
| 585 | if(i = atoi()){ |
| 586 | spacesz = i& 0177; |
| 587 | sps = width(' ' | chbits); |
| 588 | } |
| 589 | noscale = 0; |
| 590 | } |
| 591 | xlss(){ |
| 592 | register i, j; |
| 593 | |
| 594 | getch(); |
| 595 | dfact = lss; |
| 596 | i = quant(atoi(),VERT); |
| 597 | dfact = 1; |
| 598 | getch(); |
| 599 | if((j = i) < 0)j = -j; |
| 600 | ch0 = ((j & 03700)<<3) | HX; |
| 601 | if(i < 0)ch0 |= 040000; |
| 602 | return(((j & 077)<<9) | LX); |
| 603 | } |