4.3BSD - /usr/src/usr.bin/spell/spell.c

   1: #ifndef lint
   2: static char sccsid[] = "@(#)spell.c	4.2 6/3/86";
   3: #endif
   4: 
   5: #include "spell.h"
   6: #define DLEV 2
   7: 
   8: char    *strcat();
   9: int strip();
  10: char    *skipv();
  11: int an();
  12: int s();
  13: int es();
  14: int ily();
  15: int ncy();
  16: int CCe();
  17: int VCe();
  18: int bility();
  19: int tion();
  20: int ize();
  21: int y_to_e();
  22: int i_to_y();
  23: int nop();
  24: int metry();
  25: 
  26: struct suftab {
  27:     char *suf;
  28:     int (*p1)();
  29:     int n1;
  30:     char *d1;
  31:     char *a1;
  32:     int (*p2)();
  33:     int n2;
  34:     char *d2;
  35:     char *a2;
  36: } suftab[] = {
  37:     {"ssen",ily,4,"-y+iness","+ness" },
  38:     {"ssel",ily,4,"-y+i+less","+less" },
  39:     {"se",s,1,"","+s",      es,2,"-y+ies","+es" },
  40:     {"s'",s,2,"","+'s"},
  41:     {"s",s,1,"","+s"},
  42:     {"ecn",ncy,1,"","-t+ce"},
  43:     {"ycn",ncy,1,"","-cy+t"},
  44:     {"ytilb",nop,0,"",""},
  45:     {"ytilib",bility,5,"-le+ility",""},
  46:     {"elbaif",i_to_y,4,"-y+iable",""},
  47:     {"elba",CCe,4,"-e+able","+able"},
  48:     {"yti",CCe,3,"-e+ity","+ity"},
  49:     {"ylb",y_to_e,1,"-e+y",""},
  50:     {"yl",ily,2,"-y+ily","+ly"},
  51:     {"laci",strip,2,"","+al"},
  52:     {"latnem",strip,2,"","+al"},
  53:     {"lanoi",strip,2,"","+al"},
  54:     {"tnem",strip,4,"","+ment"},
  55:     {"gni",CCe,3,"-e+ing","+ing"},
  56:     {"reta",nop,0,"",""},
  57:     {"re",strip,1,"","+r",      i_to_y,2,"-y+ier","+er"},
  58:     {"de",strip,1,"","+d",      i_to_y,2,"-y+ied","+ed"},
  59:     {"citsi",strip,2,"","+ic"},
  60:     {"cihparg",i_to_y,1,"-y+ic",""},
  61:     {"tse",strip,2,"","+st",    i_to_y,3,"-y+iest","+est"},
  62:     {"cirtem",i_to_y,1,"-y+ic",""},
  63:     {"yrtem",metry,0,"-ry+er",""},
  64:     {"cigol",i_to_y,1,"-y+ic",""},
  65:     {"tsigol",i_to_y,2,"-y+ist",""},
  66:     {"tsi",VCe,3,"-e+ist","+ist"},
  67:     {"msi",VCe,3,"-e+ism","+ist"},
  68:     {"noitacif",i_to_y,6,"-y+ication",""},
  69:     {"noitazi",ize,5,"-e+ation",""},
  70:     {"rota",tion,2,"-e+or",""},
  71:     {"noit",tion,3,"-e+ion","+ion"},
  72:     {"naino",an,3,"","+ian"},
  73:     {"na",an,1,"","+n"},
  74:     {"evit",tion,3,"-e+ive","+ive"},
  75:     {"ezi",CCe,3,"-e+ize","+ize"},
  76:     {"pihs",strip,4,"","+ship"},
  77:     {"dooh",ily,4,"-y+hood","+hood"},
  78:     {"ekil",strip,4,"","+like"},
  79:     0
  80: };
  81: 
  82: char *preftab[] = {
  83:     "anti",
  84:     "bio",
  85:     "dis",
  86:     "electro",
  87:     "en",
  88:     "fore",
  89:     "hyper",
  90:     "intra",
  91:     "inter",
  92:     "iso",
  93:     "kilo",
  94:     "magneto",
  95:     "meta",
  96:     "micro",
  97:     "milli",
  98:     "mis",
  99:     "mono",
 100:     "multi",
 101:     "non",
 102:     "out",
 103:     "over",
 104:     "photo",
 105:     "poly",
 106:     "pre",
 107:     "pseudo",
 108:     "re",
 109:     "semi",
 110:     "stereo",
 111:     "sub",
 112:     "super",
 113:     "thermo",
 114:     "ultra",
 115:     "under",    /*must precede un*/
 116:     "un",
 117:     0
 118: };
 119: 
 120: int vflag;
 121: int xflag;
 122: char word[100];
 123: char original[100];
 124: char *deriv[40];
 125: char affix[40];
 126: 
 127: main(argc,argv)
 128: char **argv;
 129: {
 130:     register char *ep, *cp;
 131:     register char *dp;
 132:     int fold;
 133:     int j;
 134:     FILE *file, *found;
 135:     if(!prime(argc,argv)) {
 136:         fprintf(stderr,
 137:             "spell: cannot initialize hash table\n");
 138:         exit(1);
 139:     }
 140:     found = fopen(argv[2],"w");
 141:     for(argc-=3,argv+=3; argc>0 && argv[0][0]=='-'; argc--,argv++)
 142:         switch(argv[0][1]) {
 143:         case 'b':
 144:             ise();
 145:             break;
 146:         case 'v':
 147:             vflag++;
 148:             break;
 149:         case 'x':
 150:             xflag++;
 151:             break;
 152:         }
 153:     for(;; fprintf(file,"%s%s\n",affix,original)) {
 154:         affix[0] = 0;
 155:         file = found;
 156:         for(ep=word;(*ep=j=getchar())!='\n';ep++)
 157:             if(j == EOF) {
 158:                 fclose(found);
 159:                 exit(0);
 160:             }
 161:         for(cp=word,dp=original; cp<ep; )
 162:             *dp++ = *cp++;
 163:         *dp = 0;
 164:         fold = 0;
 165:         for(cp=word;cp<ep;cp++)
 166:             if(islower(*cp))
 167:                 goto lcase;
 168:         if(putsuf(ep,".",0))
 169:             continue;
 170:         ++fold;
 171:         for(cp=original+1,dp=word+1;dp<ep;dp++,cp++)
 172:             *dp = Tolower(*cp);
 173: lcase:
 174:         if(putsuf(ep,".",0)||suffix(ep,0))
 175:             continue;
 176:         if(isupper(word[0])) {
 177:             for(cp=original,dp=word; *dp = *cp++; dp++)
 178:                 if (fold) *dp = Tolower(*dp);
 179:             word[0] = Tolower(word[0]);
 180:             goto lcase;
 181:         }
 182:         file = stdout;
 183:     }
 184: }
 185: 
 186: suffix(ep,lev)
 187: char *ep;
 188: {
 189:     register struct suftab *t;
 190:     register char *cp, *sp;
 191:     lev += DLEV;
 192:     deriv[lev] = deriv[lev-1] = 0;
 193:     for(t= &suftab[0];sp=t->suf;t++) {
 194:         cp = ep;
 195:         while(*sp)
 196:             if(*--cp!=*sp++)
 197:                 goto next;
 198:         for(sp=cp; --sp>=word&&!vowel(*sp); ) ;
 199:         if(sp<word)
 200:             return(0);
 201:         if((*t->p1)(ep-t->n1,t->d1,t->a1,lev+1))
 202:             return(1);
 203:         if(t->p2!=0) {
 204:             deriv[lev] = deriv[lev+1] = 0;
 205:             return((*t->p2)(ep-t->n2,t->d2,t->a2,lev));
 206:         }
 207:         return(0);
 208: next:       ;
 209:     }
 210:     return(0);
 211: }
 212: 
 213: nop()
 214: {
 215:     return(0);
 216: }
 217: 
 218: strip(ep,d,a,lev)
 219: char *ep,*d,*a;
 220: {
 221:     return(putsuf(ep,a,lev)||suffix(ep,lev));
 222: }
 223: 
 224: s(ep,d,a,lev)
 225: char *ep,*d,*a;
 226: {
 227:     if(lev>DLEV+1)
 228:         return(0);
 229:     if(*ep=='s'&&ep[-1]=='s')
 230:         return(0);
 231:     return(strip(ep,d,a,lev));
 232: }
 233: 
 234: an(ep,d,a,lev)
 235: char *ep,*d,*a;
 236: {
 237:     if(!isupper(*word)) /*must be proper name*/
 238:         return(0);
 239:     return(putsuf(ep,a,lev));
 240: }
 241: 
 242: ize(ep,d,a,lev)
 243: char *ep,*d,*a;
 244: {
 245:     *ep++ = 'e';
 246:     return(strip(ep,"",d,lev));
 247: }
 248: 
 249: y_to_e(ep,d,a,lev)
 250: char *ep,*d,*a;
 251: {
 252:     *ep++ = 'e';
 253:     return(strip(ep,"",d,lev));
 254: }
 255: 
 256: ily(ep,d,a,lev)
 257: char *ep,*d,*a;
 258: {
 259:     if(ep[-1]=='i')
 260:         return(i_to_y(ep,d,a,lev));
 261:     else
 262:         return(strip(ep,d,a,lev));
 263: }
 264: 
 265: ncy(ep,d,a,lev)
 266: char *ep, *d, *a;
 267: {
 268:     if(skipv(skipv(ep-1))<word)
 269:         return(0);
 270:     ep[-1] = 't';
 271:     return(strip(ep,d,a,lev));
 272: }
 273: 
 274: bility(ep,d,a,lev)
 275: char *ep,*d,*a;
 276: {
 277:     *ep++ = 'l';
 278:     return(y_to_e(ep,d,a,lev));
 279: }
 280: 
 281: i_to_y(ep,d,a,lev)
 282: char *ep,*d,*a;
 283: {
 284:     if(ep[-1]=='i') {
 285:         ep[-1] = 'y';
 286:         a = d;
 287:     }
 288:     return(strip(ep,"",a,lev));
 289: }
 290: 
 291: es(ep,d,a,lev)
 292: char *ep,*d,*a;
 293: {
 294:     if(lev>DLEV)
 295:         return(0);
 296:     switch(ep[-1]) {
 297:     default:
 298:         return(0);
 299:     case 'i':
 300:         return(i_to_y(ep,d,a,lev));
 301:     case 's':
 302:     case 'h':
 303:     case 'z':
 304:     case 'x':
 305:         return(strip(ep,d,a,lev));
 306:     }
 307: }
 308: 
 309: metry(ep,d,a,lev)
 310: char *ep, *d,*a;
 311: {
 312:     ep[-2] = 'e';
 313:     ep[-1] = 'r';
 314:     return(strip(ep,d,a,lev));
 315: }
 316: 
 317: tion(ep,d,a,lev)
 318: char *ep,*d,*a;
 319: {
 320:     switch(ep[-2]) {
 321:     case 'c':
 322:     case 'r':
 323:         return(putsuf(ep,a,lev));
 324:     case 'a':
 325:         return(y_to_e(ep,d,a,lev));
 326:     }
 327:     return(0);
 328: }
 329: 
 330: /*	possible consonant-consonant-e ending*/
 331: CCe(ep,d,a,lev)
 332: char *ep,*d,*a;
 333: {
 334:     switch(ep[-1]) {
 335:     case 'l':
 336:         if(vowel(ep[-2]))
 337:             break;
 338:         switch(ep[-2]) {
 339:         case 'l':
 340:         case 'r':
 341:         case 'w':
 342:             break;
 343:         default:
 344:             return(y_to_e(ep,d,a,lev));
 345:         }
 346:         break;
 347:     case 's':
 348:         if(ep[-2]=='s')
 349:             break;
 350:     case 'c':
 351:     case 'g':
 352:         if(*ep=='a')
 353:             return(0);
 354:     case 'v':
 355:     case 'z':
 356:         if(vowel(ep[-2]))
 357:             break;
 358:     case 'u':
 359:         if(y_to_e(ep,d,a,lev))
 360:             return(1);
 361:         if(!(ep[-2]=='n'&&ep[-1]=='g'))
 362:             return(0);
 363:     }
 364:     return(VCe(ep,d,a,lev));
 365: }
 366: 
 367: /*	possible consonant-vowel-consonant-e ending*/
 368: VCe(ep,d,a,lev)
 369: char *ep,*d,*a;
 370: {
 371:     char c;
 372:     c = ep[-1];
 373:     if(c=='e')
 374:         return(0);
 375:     if(!vowel(c) && vowel(ep[-2])) {
 376:         c = *ep;
 377:         *ep++ = 'e';
 378:         if(putsuf(ep,d,lev)||suffix(ep,lev))
 379:             return(1);
 380:         ep--;
 381:         *ep = c;
 382:     }
 383:     return(strip(ep,d,a,lev));
 384: }
 385: 
 386: char *lookuppref(wp,ep)
 387: char **wp;
 388: char *ep;
 389: {
 390:     register char **sp;
 391:     register char *bp,*cp;
 392:     for(sp=preftab;*sp;sp++) {
 393:         bp = *wp;
 394:         for(cp= *sp;*cp;cp++,bp++)
 395:             if(Tolower(*bp)!=*cp)
 396:                 goto next;
 397:         for(cp=bp;cp<ep;cp++)
 398:             if(vowel(*cp)) {
 399:                 *wp = bp;
 400:                 return(*sp);
 401:             }
 402: next:   ;
 403:     }
 404:     return(0);
 405: }
 406: 
 407: putsuf(ep,a,lev)
 408: char *ep,*a;
 409: {
 410:     register char *cp;
 411:     char *bp;
 412:     register char *pp;
 413:     int val = 0;
 414:     char space[20];
 415:     deriv[lev] = a;
 416:     if(putw(word,ep,lev))
 417:         return(1);
 418:     bp = word;
 419:     pp = space;
 420:     deriv[lev+1] = pp;
 421:     while(cp=lookuppref(&bp,ep)) {
 422:         *pp++ = '+';
 423:         while(*pp = *cp++)
 424:             pp++;
 425:         if(putw(bp,ep,lev+1)) {
 426:             val = 1;
 427:             break;
 428:         }
 429:     }
 430:     deriv[lev+1] = deriv[lev+2] = 0;
 431:     return(val);
 432: }
 433: 
 434: putw(bp,ep,lev)
 435: char *bp,*ep;
 436: {
 437:     register i, j;
 438:     char duple[3];
 439:     if(ep-bp<=1)
 440:         return(0);
 441:     if(vowel(*ep)) {
 442:         if(monosyl(bp,ep))
 443:             return(0);
 444:     }
 445:     i = dict(bp,ep);
 446:     if(i==0&&vowel(*ep)&&ep[-1]==ep[-2]&&monosyl(bp,ep-1)) {
 447:         ep--;
 448:         deriv[++lev] = duple;
 449:         duple[0] = '+';
 450:         duple[1] = *ep;
 451:         duple[2] = 0;
 452:         i = dict(bp,ep);
 453:     }
 454:     if(vflag==0||i==0)
 455:         return(i);
 456:     j = lev;
 457:     do {
 458:         if(deriv[j])
 459:             strcat(affix,deriv[j]);
 460:     } while(--j>0);
 461:     strcat(affix,"\t");
 462:     return(i);
 463: }
 464: 
 465: 
 466: monosyl(bp,ep)
 467: char *bp, *ep;
 468: {
 469:     if(ep<bp+2)
 470:         return(0);
 471:     if(vowel(*--ep)||!vowel(*--ep)
 472:         ||ep[1]=='x'||ep[1]=='w')
 473:         return(0);
 474:     while(--ep>=bp)
 475:         if(vowel(*ep))
 476:             return(0);
 477:     return(1);
 478: }
 479: 
 480: char *
 481: skipv(s)
 482: char *s;
 483: {
 484:     if(s>=word&&vowel(*s))
 485:         s--;
 486:     while(s>=word&&!vowel(*s))
 487:         s--;
 488:     return(s);
 489: }
 490: 
 491: vowel(c)
 492: {
 493:     switch(Tolower(c)) {
 494:     case 'a':
 495:     case 'e':
 496:     case 'i':
 497:     case 'o':
 498:     case 'u':
 499:     case 'y':
 500:         return(1);
 501:     }
 502:     return(0);
 503: }
 504: 
 505: /* crummy way to Britishise */
 506: ise()
 507: {
 508:     register struct suftab *p;
 509:     for(p = suftab;p->suf;p++) {
 510:         ztos(p->suf);
 511:         ztos(p->d1);
 512:         ztos(p->a1);
 513:     }
 514: }
 515: ztos(s)
 516: char *s;
 517: {
 518:     for(;*s;s++)
 519:         if(*s=='z')
 520:             *s = 's';
 521: }
 522: 
 523: dict(bp,ep)
 524: char *bp, *ep;
 525: {
 526:     register char *wp;
 527:     long h;
 528:     register long *lp;
 529:     register i;
 530:     if(xflag)
 531:         printf("=%.*s\n",ep-bp,bp);
 532:     for(i=0; i<NP; i++) {
 533:         for (wp = bp, h = 0, lp = pow2[i]; wp < ep; ++wp, ++lp)
 534:             h += *wp * *lp;
 535:         h += '\n' * *lp;
 536:         h %= p[i];
 537:         if(get(h)==0)
 538:             return(0);
 539:     }
 540:     return(1);
 541: }

Defined functions

Defined variables

Defined struct's

Defined macros