1 2 /* starting values for typesetting parameters: */ 3 4 #define PS 10 /* default point size */ 5 #define FT 1 /* default font position */ 6 #define ULFONT 2 /* default underline font */ 7 #define BDFONT 3 /* default emboldening font */ 8 #define BIFONT 4 /* default bold italic font */ 9 #define LL (unsigned) 65*INCH/10 /* line length; 39picas=6.5in */ 10 #define VS ((12*INCH)/72) /* initial vert space */ 11 12 #ifdef NROFF 13 # define EM t.Em 14 # define HOR t.Adj 15 # define VERT t.Vert 16 # define INCH 240 /* increments per inch */ 17 # define SPS INCH/10 /* space size */ 18 # define SS INCH/10 /* " */ 19 # define TRAILER 0 20 # define PO 0 /* page offset */ 21 # define ASCII 1 22 # define PTID 1 23 # define LG 0 24 # define DTAB 0 /* set at 8 Ems at init time */ 25 # define ICS 2*SPS 26 #endif 27 #ifndef NROFF /* TROFF */ 28 /* Inch is set by ptinit() when troff started. 29 /* all derived values set then too 30 */ 31 # define INCH Inch /* troff resolution -- number of goobies/inch */ 32 # define POINT (INCH/72) /* goobies per point (1/72 inch) */ 33 # define HOR Hor /* horizontal resolution in goobies */ 34 # define VERT Vert /* vertical resolution in goobies */ 35 # define SPS (EM/3) /* space size */ 36 # define SS 12 /* space size in 36ths of an em */ 37 # define PO (INCH) /* page offset 1 inch */ 38 /* # define EM (POINT * pts) */ 39 #define EM (((long) INCH * pts + 36) / 72) /* don't lose significance */ 40 #define EMPTS(pts) (((long) INCH * (pts) + 36) / 72) 41 # define ASCII 0 42 # define PTID 1 43 # define LG 1 44 # define DTAB (INCH/2) 45 # define ICS 3*SPS 46 #endif 47 48 /* These "characters" are used to encode various internal functions 49 /* Some make use of the fact that most ascii characters between 50 /* 0 and 040 don't have any graphic or other function. 51 /* The few that do have a purpose (e.g., \n, \b, \t, ... 52 /* are avoided by the ad hoc choices here. 53 /* See ifilt[] in n1.c for others -- 1, 2, 3, 5, 6, 7, 010, 011, 012 54 */ 55 56 #define LEADER 001 57 #define IMP 004 /* impossible char; glues things together */ 58 #define TAB 011 59 #define RPT 014 /* next character is to be repeated many times */ 60 #define CHARHT 015 /* size field sets character height */ 61 #define SLANT 016 /* size field sets amount of slant */ 62 #define DRAWFCN 017 /* next several chars describe arb drawing fcn */ 63 /* line: 'l' dx dy char */ 64 /* circle: 'c' r */ 65 /* ellipse: 'e' rx ry */ 66 /* arc: 'a' dx dy r */ 67 /* wiggly line '~' x y x y ... */ 68 #define DRAWLINE 'l' 69 #define DRAWCIRCLE 'c' /* circle */ 70 #define DRAWELLIPSE 'e' 71 #define DRAWARC 'a' /* arbitrary arc */ 72 #define DRAWSPLINE '~' /* quadratic B spline */ 73 74 #define LEFT 020 /* \{ */ 75 #define RIGHT 021 /* \} */ 76 #define FILLER 022 /* \& and similar purposes */ 77 #define XON 023 /* \X'...' starts here */ 78 #define OHC 024 /* optional hyphenation character \% */ 79 #define CONT 025 /* \c character */ 80 #define PRESC 026 /* printable escape */ 81 #define UNPAD 027 /* unpaddable blank */ 82 #define XPAR 030 /* transparent mode indicator */ 83 #define FLSS 031 84 #define WORDSP 032 /* paddable word space */ 85 #define ESC 033 86 #define XOFF 034 /* \X'...' ends here */ 87 88 #define iscontrol(n) (n==035 || n==036) /* used to test the next two */ 89 #define HX 035 /* next character is value of \x'...' */ 90 #define MAXFONTS 99 /* Maximum number of fonts (in fontab) */ 91 92 #define HYPHEN c_hyphen 93 #define EMDASH c_emdash /* \(em */ 94 #define RULE c_rule /* \(ru */ 95 #define MINUS c_minus /* minus sign on current font */ 96 #define LIG_FI c_fi /* \(ff */ 97 #define LIG_FL c_fl /* \(fl */ 98 #define LIG_FF c_ff /* \(ff */ 99 #define LIG_FFI c_ffi /* \(Fi */ 100 #define LIG_FFL c_ffl /* \(Fl */ 101 #define ACUTE c_acute /* acute accent \(aa */ 102 #define GRAVE c_grave /* grave accent \(ga */ 103 #define UNDERLINE c_under /* \(ul */ 104 #define ROOTEN c_rooten /* root en \(rn */ 105 #define BOXRULE c_boxrule /* box rule \(br */ 106 #define LEFTHAND c_lefthand /* left hand for word overflow */ 107 #define DAGGER c_dagger /* dagger for footnotes */ 108 109 /* array sizes, and similar limits: */ 110 111 #define NFONT 10 /* maximum number of fonts (including specials) */ 112 #define NN 400 /* number registers */ 113 #define NNAMES 15 /* predefined reg names */ 114 #define NIF 15 /* if-else nesting */ 115 #define NS 128 /* name buffer */ 116 #define NTM 256 /* tm buffer */ 117 #define NEV 3 /* environments */ 118 #define EVLSZ 10 /* size of ev stack */ 119 #define DSIZE 512 /* disk sector size in chars */ 120 121 #define NM 500 /* requests + macros */ 122 #define DELTA 1024 /* delta core bytes */ 123 #define NHYP 10 /* max hyphens per word */ 124 #define NHEX 128 /* byte size of exception word list */ 125 #define NTAB 40 /* tab stops */ 126 #define NSO 5 /* "so" depth */ 127 #define WDSIZE 270 /* word buffer size */ 128 #define LNSIZE 1024 /* line buffer size */ 129 #define NDI 5 /* number of diversions */ 130 #define NTRTAB 512 /* number of items in trtab[] */ 131 #define NWIDCACHE 512 /* number of items in widcache[] */ 132 #define NTRAP 20 /* number of traps */ 133 #define NPN 20 /* numbers in "-o" */ 134 #define FBUFSZ 256 /* field buf size words */ 135 #define OBUFSZ 4096 /* bytes */ 136 #define IBUFSZ 4096 /* bytes */ 137 #define NC 1024 /* cbuf size words */ 138 #define NOV 10 /* number of overstrike chars */ 139 #define NPP 10 /* pads per field */ 140 141 /* 142 Internal character representation: 143 Internally, every character is carried around as 144 a 32 bit cookie, called a "tchar" (typedef long). 145 Bits are numbered 31..0 from left to right. 146 If bit 15 is 1, the character is motion, with 147 if bit 16 it's vertical motion 148 if bit 17 it's negative motion 149 If bit 15 is 0, the character is a real character. 150 if bit 31 zero motion 151 bits 30..24 size 152 bits 23..16 font 153 bit 8 absolute char number in 7..0 154 This implies at most 256-32 characters in a single font, 155 which is going to be a problem somewhere 156 */ 157 158 /* in the following, "L" should really be a tchar, but ... */ 159 160 #define MOT (01L<<15) /* motion character indicator */ 161 #define MOTV (07L<<15) /* clear for motion part */ 162 #define VMOT (01L<<16) /* vert motion bit */ 163 #define NMOT (01L<<17) /* negative motion indicator*/ 164 #define MAXMOT 32767 /* bad way to write this!!! */ 165 #define ismot(n) ((n) & MOT) 166 #define isvmot(n) ((n) & VMOT) /* must have tested MOT previously */ 167 #define isnmot(n) ((n) & NMOT) /* ditto */ 168 #define absmot(n) (unsigned)(0177777 & (n) & ~MOT) /* (short) is cheap mask */ 169 170 #define ZBIT (01L << 31) /* zero width char */ 171 #define iszbit(n) ((n) & ZBIT) 172 #define ABSCHAR 0400 /* absolute char number in this font */ 173 174 #define SMASK (0177L << 24) 175 #define FMASK (0377L << 16) 176 #define SFMASK (SMASK|FMASK) /* size and font in a tchar */ 177 #define sbits(n) (((n) >> 24) & 0177) 178 #define fbits(n) (((n) >> 16) & 0377) 179 #define sfbits(n) (unsigned)(0177777 & (((n) & SFMASK) >> 16)) 180 #define cbits(n) (unsigned)(0177777 & (n)) /* isolate bottom 16 bits */ 181 #define absbits(n) (cbits(n) & ~ABSCHAR) 182 183 #define setsbits(n,s) n = (n & ~SMASK) | (tchar)(s) << 24 184 #define setfbits(n,f) n = (n & ~FMASK) | (tchar)(f) << 16 185 #define setsfbits(n,sf) n = (n & ~SFMASK) | (tchar)(sf) << 16 186 #define setcbits(n,c) n = (n & ~077777L | (c)) /* set character bits */ 187 188 #define BYTEMASK 0377 189 #define BYTE 8 190 191 #define ZONE 5 /* 5 hrs for EST */ 192 #define TABMASK 037777 193 #define RTAB (unsigned) 0100000 194 #define CTAB 040000 195 196 #define TABBIT 02 /* bits in gchtab */ 197 #define LDRBIT 04 198 #define FCBIT 010 199 200 #define PAIR(A,B) (A|(B<<BYTE)) 201 202 #define oput(c) if ((*obufp++ = (c)), obufp >= &obuf[OBUFSZ]) flusho(); else 203 204 /* 205 * "temp file" parameters. macros and strings 206 * are stored in an array of linked blocks, 207 * which may be in memory if INCORE is set during 208 * compilation, or otherwise in a file. 209 * The numerology is delicate if filep is 16 bits: 210 #define BLK 128 211 #define NBLIST 512 212 * i.e., the product is 16 bits long. 213 214 * If filep is an unsigned long (and if your 215 * compiler will let you say that) then NBLIST 216 * can be a lot bigger. Of course that makes 217 * the file or core image a lot bigger too, 218 * and means you don't detect missing diversion 219 * terminations as quickly... . 220 * It also means that you may have trouble running 221 * on non-swapping systems, since the core image 222 * will be over 1Mb. 223 224 * In any case, both must be powers of 2. 225 */ 226 227 typedef unsigned int filep; /* this is good for 32 bit machines */ 228 229 #define BLK 128 /* alloc block in tchars */ 230 #ifdef SMALLER 231 232 #define NBLIST 1024 233 234 #else 235 236 #define NBLIST 2048 /* allocation list. smallish machines use 1024, bigger use 2048 */ 237 238 #endif 239 240 typedef long tchar; /* as an experiment */ 241 242 extern tchar getch(), getch0(); 243 extern tchar rbf(), rbf0(); 244 extern tchar mot(), hmot(), vmot(); 245 extern tchar makem(), sethl(); 246 extern tchar popi(); 247 extern tchar getlg(); 248 extern tchar xlss(); 249 extern tchar setfield(); 250 extern tchar setz(); 251 extern tchar setch(); 252 extern tchar setht(), setslant(); 253 254 #define atoi(i) ((int) atoi0(i)) 255 extern long atoi0(); 256 257 extern int Inch, Hor, Vert, Unitwidth; 258 259 /* these characters are used as various signals or values 260 /* in miscellaneous places. 261 /* values are set in specnames in t10.c 262 */ 263 264 extern int c_hyphen; 265 extern int c_emdash; 266 extern int c_rule; 267 extern int c_minus; 268 extern int c_fi; 269 extern int c_fl; 270 extern int c_ff; 271 extern int c_ffi; 272 extern int c_ffl; 273 extern int c_acute; 274 extern int c_grave; 275 extern int c_under; 276 extern int c_rooten; 277 extern int c_boxrule; 278 extern int c_lefthand; 279 extern int c_dagger; 280 281 extern int stderr; /* this is NOT the stdio value! */ 282 283 extern struct d { /* diversion */ 284 filep op; 285 int dnl; 286 int dimac; 287 int ditrap; 288 int ditf; 289 int alss; 290 int blss; 291 int nls; 292 int mkline; 293 int maxl; 294 int hnl; 295 int curd; 296 }; 297 298 extern struct s { /* stack frame */ 299 int nargs; 300 struct s *pframe; 301 filep pip; 302 int pnchar; 303 tchar prchar; 304 int ppendt; 305 tchar pch; 306 tchar *lastpbp; 307 int mname; 308 }; 309 310 extern struct contab { 311 unsigned short rq; 312 struct contab *link; 313 int (*f)(); 314 unsigned mx; 315 } contab[NM]; 316 317 extern struct numtab { 318 short r; /* name */ 319 short fmt; 320 short inc; 321 int val; 322 struct numtab *link; 323 } numtab[NN]; 324 325 #define PN 0 326 #define NL 1 327 #define YR 2 328 #define HP 3 329 #define CT 4 330 #define DN 5 331 #define MO 6 332 #define DY 7 333 #define DW 8 334 #define LN 9 335 #define DL 10 336 #define ST 11 337 #define SB 12 338 #define CD 13 339 #define PID 14 340 341 /* the infamous environment block */ 342 343 #define ics env._ics 344 #define sps env._sps 345 #define spacesz env._spacesz 346 #define lss env._lss 347 #define lss1 env._lss1 348 #define ll env._ll 349 #define ll1 env._ll1 350 #define lt env._lt 351 #define lt1 env._lt1 352 #define ic env._ic 353 #define icf env._icf 354 #define chbits env._chbits 355 #define spbits env._spbits 356 #define nmbits env._nmbits 357 #define apts env._apts 358 #define apts1 env._apts1 359 #define pts env._pts 360 #define pts1 env._pts1 361 #define font env._font 362 #define font1 env._font1 363 #define ls env._ls 364 #define ls1 env._ls1 365 #define ad env._ad 366 #define nms env._nms 367 #define ndf env._ndf 368 #define fi env._fi 369 #define cc env._cc 370 #define c2 env._c2 371 #define ohc env._ohc 372 #define tdelim env._tdelim 373 #define hyf env._hyf 374 #define hyoff env._hyoff 375 #define hyalg env._hyalg 376 #define hyalg1 env._hyalg1 377 #define thresh env._thresh 378 #define un1 env._un1 379 #define tabc env._tabc 380 #define dotc env._dotc 381 #define adsp env._adsp 382 #define adrem env._adrem 383 #define lastl env._lastl 384 #define nel env._nel 385 #define admod env._admod 386 #define wordp env._wordp 387 #define spflg env._spflg 388 #define linep env._linep 389 #define wdend env._wdend 390 #define wdstart env._wdstart 391 #define wne env._wne 392 #define ne env._ne 393 #define nc env._nc 394 #define nb env._nb 395 #define lnmod env._lnmod 396 #define nwd env._nwd 397 #define nn env._nn 398 #define ni env._ni 399 #define ul env._ul 400 #define cu env._cu 401 #define ce env._ce 402 #define in env._in 403 #define in1 env._in1 404 #define un env._un 405 #define wch env._wch 406 #define pendt env._pendt 407 #define pendw env._pendw 408 #define pendnf env._pendnf 409 #define spread env._spread 410 #define it env._it 411 #define itmac env._itmac 412 #define lnsize env._lnsize 413 #define hyptr env._hyptr 414 #define tabtab env._tabtab 415 #define line env._line 416 #define word env._word 417 418 /* 419 * Note (jaap) 420 * If this structure changes in ni.c, you should change 421 * this as well 422 */ 423 extern struct env { 424 int _ics; 425 int _sps; 426 int _spacesz; 427 int _lss; 428 int _lss1; 429 int _ll; 430 int _ll1; 431 int _lt; 432 int _lt1; 433 tchar _ic; 434 int _icf; 435 tchar _chbits; 436 tchar _spbits; 437 tchar _nmbits; 438 int _apts; 439 int _apts1; 440 int _pts; 441 int _pts1; 442 int _font; 443 int _font1; 444 int _ls; 445 int _ls1; 446 int _ad; 447 int _nms; 448 int _ndf; 449 int _fi; 450 int _cc; 451 int _c2; 452 int _ohc; 453 int _tdelim; 454 int _hyf; 455 int _hyoff; 456 int _hyalg; 457 int _hyalg1; 458 int _thresh; 459 int _un1; 460 int _tabc; 461 int _dotc; 462 int _adsp; 463 int _adrem; 464 int _lastl; 465 int _nel; 466 int _admod; 467 tchar *_wordp; 468 int _spflg; 469 tchar *_linep; 470 tchar *_wdend; 471 tchar *_wdstart; 472 int _wne; 473 int _ne; 474 int _nc; 475 int _nb; 476 int _lnmod; 477 int _nwd; 478 int _nn; 479 int _ni; 480 int _ul; 481 int _cu; 482 int _ce; 483 int _in; 484 int _in1; 485 int _un; 486 int _wch; 487 int _pendt; 488 tchar *_pendw; 489 int _pendnf; 490 int _spread; 491 int _it; 492 int _itmac; 493 int _lnsize; 494 tchar *_hyptr[NHYP]; 495 int _tabtab[NTAB]; 496 tchar _line[LNSIZE]; 497 tchar _word[WDSIZE]; 498 } env; 499 500 /* 501 * All changes will come after this comment (jaap) 502 */ 503 504 /* 505 * hyphenation dependent stuff (jaap) 506 */ 507 #define THRESH 160 /*digram goodness threshold (from n8.c, (jaap))*/ 508 #define DUTCH_THRESH 3 /* for recursive bestesplits (jaap) */ 509 510 #define ORIGINAL 0 /* original (American) English) algorithm */ 511 #define DUTCH 1 /* second hyphenation routine (bestesplits) */ 512 #define MAXDIALECTS 1 /* number of hyphenation algorithms */ 513 514 /* 515 * define enough space for the fontcache. EXTRAFONT is maximum space 516 * currently to be used by a font. The space for the fonttab is 517 * for the "logical to physical font table mapping addition (jaap). 518 */ 519 #define MAXCHARS 255 /* current maximum of characters in a font */ 520 521 #define EXTRAFONT (3*MAXCHARS * sizeof(char) + dev.nchtab + (128-32) \ 522 * sizeof(char) + sizeof(struct Font) + 255 * sizeof(short)) 523