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Annotation of OpenXM/src/kan96xx/Kan/primitive.c, Revision 1.20

1.20    ! takayama    1: /* $OpenXM: OpenXM/src/kan96xx/Kan/primitive.c,v 1.19 2004/09/20 02:11:22 takayama Exp $ */
1.1       maekawa     2: /*   primitive.c */
                      3: /*  The functions in this module were in stackmachine.c */
                      4:
                      5: #include <stdio.h>
1.5       takayama    6: #include <signal.h>
1.1       maekawa     7: #include "datatype.h"
                      8: #include "stackm.h"
                      9: #include "extern.h"
                     10: #include "gradedset.h"
                     11: #include "kclass.h"
                     12: #include <sys/types.h>
                     13: #include <sys/times.h>
                     14:
                     15: int PrintDollar = 1;         /* flag for printObject() */
                     16: int PrintComma  = 1;         /* flag for printObject() */
1.10      takayama   17: int InSendmsg2 = 0;
1.1       maekawa    18: #define OB_ARRAY_MAX   (AGLIMIT+100)
                     19:
                     20: extern int GotoP;
                     21: extern char *GotoLabel;
                     22: extern int Osp;
                     23: extern int Sdp;
                     24: extern int ClassTypes[];   /* kclass.c */
                     25: extern struct context *PrimitiveContextp;
                     26: extern struct context *CurrentContextp;
                     27: extern struct dictionary *SystemDictionary;
1.8       takayama   28: extern int QuoteMode;
1.1       maekawa    29:
                     30: static char *operatorType(int i);
                     31:
                     32: static char *operatorType(type)
1.4       takayama   33:      int type;
1.1       maekawa    34: { int i;
1.4       takayama   35:  for (i=0; i<Sdp; i++) {
                     36:    if (type == (SystemDictionary[i]).obj.lc.ival) {
                     37:      return((SystemDictionary[i]).key);
                     38:    }
                     39:  }
                     40:  return("Unknown operator");
1.1       maekawa    41: }
                     42:
1.16      takayama   43: #define evalEA(ob1) if (ob1.tag == SexecutableArray) {\
                     44:          executeExecutableArray(ob1,(char *)NULL,0); ob1 = Kpop();}
                     45:
1.1       maekawa    46: /****** primitive functions *****************************************
                     47:   the values must be greater than 1. 0 is used for special purposes.*/
                     48: #define Sadd              1
                     49: #define Ssub              2
                     50: #define Smult             3
                     51: #define Sset_up_ring      4
                     52: #define Soptions          6
                     53: #define Sgroebner       7
                     54: #define Sdef              8
                     55: #define Spop              9
                     56: #define Sput              10
                     57: #define Sprint            11
                     58: #define Spstack           12
                     59: #define Sshow_ring        13
                     60: #define Sshow_systemdictionary 15
                     61: #define Slength            16
                     62: #define Sfor               17
                     63: #define Sroll              18
                     64: #define Squit              19
                     65: #define Stest              20      /* this is used for test of new function*/
                     66: #define Sfileopen      23
                     67: #define Sclosefile 24
                     68: #define Sidiv      25
                     69: #define Sdup       26
                     70: #define Smap       27
                     71: #define Sreduction 28
                     72: #define Sreplace 29
                     73: #define SleftBrace 30       /* primitive [ */
                     74: #define SrightBrace 31      /* primitive ] */
                     75: #define Srun 32            /* run from a file */
                     76: #define Sloop 33
                     77: #define Saload 34
                     78: #define Sifelse 35
                     79: #define Sequal 36
                     80: #define Sexec 37
                     81: #define Sset 38
                     82: #define Sget 41
                     83: #define Scopy 43
                     84: #define Sindex 44
                     85: #define Ssystem 45
                     86: #define Sset_order_by_matrix 50
                     87: #define Sshow_user_dictionary 54
                     88: #define Selimination_order 55
                     89: #define Sswitch_function 58
                     90: #define Sprint_switch_status 59
                     91: #define Scat_n 62
                     92: #define Sless  63
                     93: #define Sgreater  64
                     94: #define Swritestring  66
                     95: #define Sset_timer 67
                     96: #define Sspol 68
                     97: #define Susage 69
                     98: #define Sto_records 70
                     99: #define Scoefficients 71
                    100: #define Ssystem_variable 72
                    101: #define Sdata_conversion 73
                    102: #define Sdegree 74
                    103: #define Sinit 75
                    104: #define Sload 76
                    105: #define Seval 77
                    106: #define Shomogenize 78
                    107: #define Sprincipal 79
                    108: #define Spushfile 80
                    109: #define Sdiv 81
                    110: #define Sgoto 82
                    111: #define Sextension 83
                    112: #define Snewstack 84
                    113: #define Ssetstack 85
                    114: #define Sstdstack 86
                    115: #define Slc 87
                    116: #define Src 88
                    117: #define Sgbext 89
                    118: #define Snewcontext 90
                    119: #define Ssetcontext 91
                    120: #define Ssupercontext 92
                    121: #define Ssendmsg 93
                    122: #define Serror 94
                    123: #define Smpzext 95
                    124: #define Ssendmsg2 96
                    125: #define Sprimmsg 97
                    126: #define Ssupmsg2 98
                    127: #define Scclass 99
                    128: #define Scoeff2 100
1.5       takayama  129: #define Stlimit 101
1.9       takayama  130: #define Soxshell 102
1.1       maekawa   131: /***********************************************/
                    132: void printObject(ob,nl,fp)
1.4       takayama  133:      struct object ob;
                    134:      int nl;
                    135:      FILE *fp;
                    136:      /* print the object on the top of the stack. */
1.1       maekawa   137: {
                    138:
                    139:   int size;
                    140:   int i;
                    141:   struct tokens *ta;
                    142:
                    143:   if (VerboseStack >= 2) {
                    144:     /*fprintf(fp,"@@@");*/
                    145:     switch (ob.tag) {
                    146:     case 0:
                    147:       fprintf(fp,"<null> "); /* null object */
                    148:       break;
                    149:     case Sinteger:
                    150:       fprintf(fp,"<integer> ");
                    151:       break;
                    152:     case Sstring:
                    153:       fprintf(fp,"<literal-string> ");
                    154:       break;
                    155:     case Soperator:
                    156:       fprintf(fp,"<operator> ");
                    157:       break;
                    158:     case Sdollar:
                    159:       fprintf(fp,"<string(dollar)> ");
                    160:       break;
                    161:     case SexecutableArray:
                    162:       fprintf(fp,"<executable array> ");
                    163:       break;
                    164:     case Sarray:
                    165:       fprintf(fp,"<array> ");
                    166:       break;
                    167:     case SleftBraceTag:
                    168:       fprintf(fp,"<leftBraceTag> ");
                    169:       break;
                    170:     case SrightBraceTag:
                    171:       fprintf(fp,"<rightBraceTag> ");
                    172:       break;
                    173:     case Spoly:
                    174:       fprintf(fp,"<poly> ");
                    175:       break;
                    176:     case SarrayOfPOLY:
                    177:       fprintf(fp,"<arrayOfPOLY> ");
                    178:       break;
                    179:     case SmatrixOfPOLY:
                    180:       fprintf(fp,"<matrixOfPOLY> ");
                    181:       break;
                    182:     case Slist:
                    183:       fprintf(fp,"<list> ");
                    184:       break;
                    185:     case Sfile:
                    186:       fprintf(fp,"<file> ");
                    187:       break;
                    188:     case Sring:
                    189:       fprintf(fp,"<ring> ");
                    190:       break;
                    191:     case SuniversalNumber:
                    192:       fprintf(fp,"<universalNumber> ");
                    193:       break;
                    194:     case Sclass:
                    195:       fprintf(fp,"<class> ");
                    196:       break;
                    197:     case SrationalFunction:
                    198:       fprintf(fp,"<rationalFunction> ");
                    199:       break;
                    200:     case Sdouble:
                    201:       fprintf(fp,"<double> ");
                    202:       break;
1.19      takayama  203:     case SbyteArray:
                    204:       fprintf(fp,"<byteArray> ");
                    205:       break;
1.1       maekawa   206:     default:
                    207:       fprintf(fp,"<Unknown object tag. %d >",ob.tag);
                    208:       break;
                    209:     }
                    210:   }
                    211:   switch (ob.tag) {
                    212:   case 0:
                    213:     fprintf(fp,"%%[null]"); /* null object */
                    214:     break;
                    215:   case Sinteger:
                    216:     fprintf(fp,"%d",ob.lc.ival);
                    217:     break;
                    218:   case Sstring:
                    219:     fprintf(fp,"%s",ob.lc.str);
                    220:     break;
                    221:   case Soperator:
                    222:     fprintf(fp,"%s %%[operator] ",operatorType(ob.lc.ival));
                    223:     break;
                    224:   case Sdollar:
                    225:     if (PrintDollar == 2) {
                    226:       fprintf(fp,"(%s)",ob.lc.str);
                    227:     } else if (PrintDollar == 0 ) {
                    228:       fprintf(fp,"%s",ob.lc.str);
                    229:     } else {
                    230:       fprintf(fp,"$%s$",ob.lc.str);
                    231:     }
                    232:     break;
                    233:   case SexecutableArray:
                    234:     size = ob.rc.ival;
                    235:     ta = ob.lc.tokenArray;
                    236:     fprintf(fp,"{ ");
                    237:     for (i=0; i<size; i++) {
                    238:       switch ((ta[i]).kind) {
                    239:       case ID:
1.4       takayama  240:         fprintf(fp,"<<ID>>%s ",(ta[i]).token);
                    241:         break;
1.1       maekawa   242:       case EXECUTABLE_STRING:
1.4       takayama  243:         fprintf(fp,"<<EXECUTABLE_STRING>>{%s} ",(ta[i]).token);
                    244:         break;
1.1       maekawa   245:       case EXECUTABLE_ARRAY:
1.4       takayama  246:         printObject((ta[i]).object,nl,fp);
                    247:         break;
1.1       maekawa   248:       case DOLLAR:
1.4       takayama  249:         fprintf(fp,"<<STRING(DOLLAR)>>%s ",(ta[i]).token);
                    250:         break;
1.1       maekawa   251:       default:
1.4       takayama  252:         fprintf(fp,"Unknown token type\n");
                    253:         break;
1.1       maekawa   254:       }
                    255:     }
                    256:     fprintf(fp," }");
                    257:     break;
                    258:   case Sarray:
                    259:     printObjectArray(ob,0,fp);
                    260:     break;
                    261:   case SleftBraceTag:
                    262:     fprintf(fp,"[ ");
                    263:     break;
                    264:   case SrightBraceTag:
                    265:     fprintf(fp,"] ");
                    266:     break;
                    267:   case Spoly:
                    268:     fprintf(fp,"%s",KPOLYToString(ob.lc.poly));
                    269:     break;
                    270:   case SarrayOfPOLY:
                    271:     fprintf(fp,"Sorry! The object arrayOfPOLY cannot be printed.");
                    272:     break;
                    273:   case SmatrixOfPOLY:
                    274:     fprintf(fp,"Sorry! The object matrixOfPOLY cannot be printed.");
                    275:     break;
                    276:   case Slist:
                    277:     printObjectList(&ob);
                    278:     break;
                    279:   case Sfile:
                    280:     fprintf(fp,"Name=%s, FILE *=%x ",ob.lc.str,(int) ob.rc.file);
                    281:     break;
                    282:   case Sring:
                    283:     fprintf(fp,"Ring."); KshowRing(KopRingp(ob));
                    284:     break;
                    285:   case SuniversalNumber:
                    286:     fprintf(fp,"%s",coeffToString(ob.lc.universalNumber));
                    287:     break;
                    288:   case SrationalFunction:
                    289:     fprintf(fp,"("); printObject(*(Knumerator(ob)),nl,fp);
                    290:     fprintf(fp,")/(");printObject(*(Kdenominator(ob)),nl,fp);
                    291:     fprintf(fp,")");
                    292:     break;
                    293:   case Sclass:
                    294:     /* fprintf(fp,"Class: "); */
                    295:     fprintClass(fp,ob);
                    296:     break;
                    297:   case Sdouble:
                    298:     fprintf(fp,"%f",KopDouble(ob));
                    299:     break;
1.19      takayama  300:   case SbyteArray:
                    301:     printObject(byteArrayToArray(ob),nl,fp); /* Todo: I should save memory.*/
                    302:     break;
1.1       maekawa   303:   default:
                    304:     fprintf(fp,"[Unknown object tag.]");
                    305:     break;
                    306:   }
                    307:   if (nl) fprintf(fp,"\n");
                    308: }
                    309:
                    310: void printObjectArray(ob,nl,fp)
1.4       takayama  311:      struct object ob;
                    312:      int nl;
                    313:      FILE *fp;
1.1       maekawa   314: {
                    315:   int size;
                    316:   int i;
1.2       takayama  317:   extern char *LeftBracket, *RightBracket;
1.1       maekawa   318:   size = ob.lc.ival;
1.2       takayama  319:   fprintf(fp,"%s  ",LeftBracket);
1.1       maekawa   320:   for (i=0; i<size; i++) {
                    321:     if (PrintComma && (i != 0)) {
                    322:       fprintf(fp," , ");
                    323:     }else{
                    324:       fprintf(fp,"  ");
                    325:     }
                    326:     printObject((ob.rc.op)[i],0,fp);
                    327:   }
1.2       takayama  328:   fprintf(fp," %s ",RightBracket);
1.1       maekawa   329:   if (nl) fprintf(fp,"\n");
                    330: }
                    331:
                    332: void  KdefinePrimitiveFunctions() {
                    333:   /* It is recommended to sort the follows for performance */
                    334:   putPrimitiveFunction("mul",Smult);
                    335:   putPrimitiveFunction("add",Sadd);
                    336:   putPrimitiveFunction("sub",Ssub);
                    337:   putPrimitiveFunction("lt",Sless);
                    338:   putPrimitiveFunction("set",Sset);
                    339:   putPrimitiveFunction("eq",Sequal);
                    340:   putPrimitiveFunction("gt",Sgreater);
                    341:   putPrimitiveFunction("QUIT",Squit);
                    342:   putPrimitiveFunction("[",SleftBrace);
                    343:   putPrimitiveFunction("]",SrightBrace);
                    344:   putPrimitiveFunction("bye",Squit);
                    345:   putPrimitiveFunction("length",Slength);
                    346:   putPrimitiveFunction("for",Sfor);
                    347:   putPrimitiveFunction("roll",Sroll);
                    348:   putPrimitiveFunction("cat_n",Scat_n);
                    349:   putPrimitiveFunction("coefficients",Scoefficients);
                    350:   putPrimitiveFunction("copy",Scopy);
                    351:   putPrimitiveFunction("data_conversion",Sdata_conversion);
                    352:   putPrimitiveFunction("aload",Saload);
                    353:   putPrimitiveFunction("def",Sdef);
                    354:   putPrimitiveFunction("degree",Sdegree);
                    355:   putPrimitiveFunction("elimination_order",Selimination_order);
                    356:   putPrimitiveFunction("exec",Sexec);
                    357:   putPrimitiveFunction("exit",Squit);
                    358:   putPrimitiveFunction("get",Sget);
                    359:   putPrimitiveFunction("groebner",Sgroebner);
                    360:   putPrimitiveFunction("ifelse",Sifelse);
                    361:   putPrimitiveFunction("index",Sindex);
                    362:   putPrimitiveFunction("dup",Sdup);
                    363:   putPrimitiveFunction("init",Sinit);
                    364:   putPrimitiveFunction("loop",Sloop);
                    365:   putPrimitiveFunction("options",Soptions);
                    366:   putPrimitiveFunction("pop",Spop);
                    367:   putPrimitiveFunction("put",Sput);
                    368:   putPrimitiveFunction("print",Sprint);
                    369:   putPrimitiveFunction("pstack",Spstack);
                    370:   putPrimitiveFunction("print_switch_status",Sprint_switch_status);
                    371:   putPrimitiveFunction("quit",Squit);
                    372:   putPrimitiveFunction("file",Sfileopen);
                    373:   putPrimitiveFunction("closefile",Sclosefile);
                    374:   putPrimitiveFunction("idiv",Sidiv);
                    375:   putPrimitiveFunction("reduction",Sreduction);
                    376:   putPrimitiveFunction("replace",Sreplace);
                    377:   putPrimitiveFunction("run",Srun);
                    378:   putPrimitiveFunction("set_order_by_matrix",Sset_order_by_matrix);
                    379:   putPrimitiveFunction("set_timer",Sset_timer);
                    380:   putPrimitiveFunction("set_up_ring@",Sset_up_ring);
                    381:   putPrimitiveFunction("show_ring",Sshow_ring);
                    382:   putPrimitiveFunction("show_systemdictionary",Sshow_systemdictionary);
                    383:   putPrimitiveFunction("show_user_dictionary",Sshow_user_dictionary);
                    384:   putPrimitiveFunction("spol",Sspol);
                    385:   putPrimitiveFunction("switch_function",Sswitch_function);
                    386:   putPrimitiveFunction("system",Ssystem);
                    387:   putPrimitiveFunction("system_variable",Ssystem_variable);
                    388:   putPrimitiveFunction("test",Stest);
1.5       takayama  389:   putPrimitiveFunction("tlimit",Stlimit);
1.9       takayama  390:   putPrimitiveFunction("oxshell",Soxshell);
1.1       maekawa   391:   putPrimitiveFunction("map",Smap);
                    392:   putPrimitiveFunction("to_records",Sto_records);
                    393:   putPrimitiveFunction("Usage",Susage);
                    394:   putPrimitiveFunction("load",Sload);
                    395:   putPrimitiveFunction("writestring",Swritestring);
                    396:   putPrimitiveFunction("eval",Seval);
                    397:   putPrimitiveFunction("homogenize",Shomogenize);
                    398:   putPrimitiveFunction("principal",Sprincipal);
                    399:   putPrimitiveFunction("pushfile",Spushfile);
                    400:   putPrimitiveFunction("div",Sdiv);
                    401:   putPrimitiveFunction("goto",Sgoto);
                    402:   putPrimitiveFunction("extension",Sextension);
                    403:   putPrimitiveFunction("newstack",Snewstack);
                    404:   putPrimitiveFunction("setstack",Ssetstack);
                    405:   putPrimitiveFunction("stdstack",Sstdstack);
                    406:   putPrimitiveFunction("lc",Slc);
                    407:   putPrimitiveFunction("rc",Src);
                    408:   putPrimitiveFunction("gbext",Sgbext);
                    409:   putPrimitiveFunction("newcontext",Snewcontext);
                    410:   putPrimitiveFunction("setcontext",Ssetcontext);
                    411:   putPrimitiveFunction("supercontext",Ssupercontext);
                    412:   putPrimitiveFunction("sendmsg",Ssendmsg);
                    413:   putPrimitiveFunction("error",Serror);
                    414:   putPrimitiveFunction("mpzext",Smpzext);
                    415:   putPrimitiveFunction("sendmsg2",Ssendmsg2);
                    416:   putPrimitiveFunction("primmsg",Sprimmsg);
                    417:   putPrimitiveFunction("supmsg2",Ssupmsg2);
                    418:   putPrimitiveFunction("cclass",Scclass);
                    419:   putPrimitiveFunction("coeff",Scoeff2);
                    420: }
                    421:
                    422: int executePrimitive(ob)
1.4       takayama  423:      struct object ob;
1.1       maekawa   424: {
1.20    ! takayama  425:   struct object ob1 = OINIT;
        !           426:   struct object ob2 = OINIT;
        !           427:   struct object ob3 = OINIT;
        !           428:   struct object ob4 = OINIT;
        !           429:   struct object ob5 = OINIT;
        !           430:   struct object rob = OINIT;
1.1       maekawa   431:   struct object obArray[OB_ARRAY_MAX];
                    432:   struct object obArray2[OB_ARRAY_MAX];
                    433:   int size;
                    434:   int i,j,k,n;
                    435:   int status;
1.13      takayama  436:   int infixOn;
                    437:   struct tokens infixToken;
1.1       maekawa   438:   struct tokens *tokenArray;
                    439:   struct tokens token;
                    440:   FILE *fp;
                    441:   char *fname;
                    442:   int rank;
1.20    ! takayama  443:   struct object oMat = OINIT;
1.1       maekawa   444:   static int timerStart = 1;
                    445:   static struct tms before, after;
                    446:   static time_t before_real, after_real;
1.20    ! takayama  447:   struct object oInput = OINIT;
1.1       maekawa   448:   char *str;
                    449:   int ccflag = 0;
                    450:   extern int KeepInput;
                    451:   extern int History;
                    452:   extern struct ring *CurrentRingp;
                    453:   extern TimerOn;
1.3       takayama  454:   extern SecureMode;
1.18      takayama  455:   extern int RestrictedMode;
1.1       maekawa   456:
1.13      takayama  457:   infixOn = 0;
                    458:
1.1       maekawa   459:   if (DebugStack >= 2) {
                    460:     fprintf(Fstack,"In execute %d\n",ob.lc.ival); printOperandStack();
1.18      takayama  461:   }
                    462:
                    463:   if (RestrictedMode) {
                    464:     switch(ob.lc.ival) {
                    465:     case SleftBrace:
                    466:     case SrightBrace:
                    467:     case Sexec:
                    468:       break;
                    469:     default:
                    470:       fprintf(stderr,"primitive No = %d : ", ob.lc.ival);
                    471:       errorStackmachine("You cannot use this primitive in the RestrictedMode.\n");
                    472:     }
1.1       maekawa   473:   }
                    474:
                    475:   if (GotoP) return(0);
                    476:   switch (ob.lc.ival) {
                    477:     /* Postscript primitives :stack */
                    478:   case Sgoto:
                    479:     ob1 = Kpop();
                    480:     if (ob1.tag != Sstring) {
                    481:       if (DebugStack>=2) printObject(ob1,0,Fstack);
                    482:       errorStackmachine("Usage:goto");
                    483:     }
                    484:     GotoLabel = ob1.lc.str;
                    485:     GotoP = 1;
                    486:     break;
                    487:   case Spop:
                    488:     ob1 = Kpop();
                    489:     break;
                    490:
                    491:   case Sdup:
                    492:     ob1 = Kpop();
                    493:     Kpush(ob1); Kpush(ob1);
                    494:     break;
                    495:   case Scopy:  /* copy values. cf. dup */
                    496:     ob1 = Kpop();
                    497:     switch(ob1.tag) {
                    498:     case Sinteger: break;
                    499:     default: errorStackmachine("Usage:copy");
                    500:     }
                    501:     size = ob1.lc.ival;
                    502:     k = 0;
                    503:     for (i=size-1; i>=0; i--) {
                    504:       ob2 = peek(i+k);
                    505:       switch(ob2.tag) {
                    506:       case Sdollar: /* copy by value */
1.4       takayama  507:         str = (char *)sGC_malloc(strlen(ob2.lc.str)+3);
                    508:         if (str == (char *)NULL) errorStackmachine("No memory (copy)");
                    509:         strcpy(str,ob2.lc.str);
                    510:         Kpush(KpoString(str));
                    511:         break;
1.1       maekawa   512:       case Spoly:
1.4       takayama  513:         errorStackmachine("no pCopy (copy)");
                    514:         break;
1.1       maekawa   515:       case Sarray:
1.4       takayama  516:         n = ob2.lc.ival;
                    517:         ob3 = newObjectArray(n);
                    518:         for (j=0; j<n; j++) {
                    519:           putoa(ob3,j,getoa(ob2,j));
                    520:         }
                    521:         Kpush(ob3);
                    522:         break;
1.19      takayama  523:       case SbyteArray:
                    524:         n = getByteArraySize(ob2);
                    525:         ob3 = newByteArray(n,ob2);
                    526:         Kpush(ob3);
                    527:         break;
1.1       maekawa   528:       default:
1.4       takayama  529:         Kpush(ob2);
                    530:         break;
1.1       maekawa   531:       }
                    532:       k++;
                    533:     }
                    534:     break;
                    535:   case Sroll:
                    536:     ob1 = Kpop();
                    537:     ob2 = Kpop();
                    538:     switch(ob1.tag) {
                    539:     case Sinteger:
                    540:       j = ob1.lc.ival;
                    541:       break;
                    542:     default: errorStackmachine("Usage:roll");
                    543:     }
                    544:     switch(ob2.tag) {
                    545:     case Sinteger:
                    546:       n = ob2.lc.ival;
                    547:       break;
                    548:     default: errorStackmachine("Usage:roll");
                    549:     }
                    550:     for (i=0; i<n; i++) {
                    551:       if (i < OB_ARRAY_MAX) {
1.4       takayama  552:         obArray[i] = Kpop();
1.1       maekawa   553:       }else{
1.4       takayama  554:         errorStackmachine("exceeded OB_ARRAY_MAX (roll)\n");
1.1       maekawa   555:       }
                    556:     }
                    557:     for (i=0; i<n; i++) {
                    558:       k = (j-1)%n;
                    559:       k = (k>=0?k: k+n);
                    560:       Kpush(obArray[k]);
                    561:       j--;
                    562:     }
                    563:     break;
                    564:   case Spstack:
                    565:     printOperandStack();
                    566:     break;
                    567:
                    568:     /* Postscript primitives :arithmetic */
                    569:   case Sadd:
1.16      takayama  570:     ob1 = Kpop();
1.1       maekawa   571:     ob2 = Kpop();
1.16      takayama  572:     evalEA(ob1); evalEA(ob2);
1.1       maekawa   573:     rob = KooAdd(ob1,ob2);
                    574:     Kpush(rob);
                    575:     break;
                    576:   case Ssub:
                    577:     ob2 = Kpop();
                    578:     ob1 = Kpop();
1.16      takayama  579:     evalEA(ob1); evalEA(ob2);
1.1       maekawa   580:     rob = KooSub(ob1,ob2);
                    581:     Kpush(rob);
                    582:     break;
                    583:   case Smult:
                    584:     ob2 = Kpop();
                    585:     ob1 = Kpop();
1.16      takayama  586:     evalEA(ob1); evalEA(ob2);
1.1       maekawa   587:     rob = KooMult(ob1,ob2);
                    588:     Kpush(rob);
                    589:     break;
                    590:   case Sidiv:
                    591:     ob2 = Kpop(); ob1 = Kpop();
1.16      takayama  592:     evalEA(ob1); evalEA(ob2);
1.1       maekawa   593:     rob = KooDiv(ob1,ob2);
                    594:     Kpush(rob);
                    595:     break;
                    596:
                    597:   case Sdiv:
                    598:     ob2 = Kpop(); ob1 = Kpop();
1.16      takayama  599:     evalEA(ob1); evalEA(ob2);
1.1       maekawa   600:     rob = KooDiv2(ob1,ob2);
                    601:     Kpush(rob);
                    602:     break;
                    603:
                    604:     /* Postscript primitives :array */
                    605:   case SleftBrace:
                    606:     rob.tag = SleftBraceTag;
                    607:     Kpush(rob);
                    608:     break;
                    609:
                    610:   case SrightBrace:
                    611:     size = 0;
                    612:     ob1 = peek(size);
                    613:     while (!(Osp-size-1 < 0)) { /* while the stack is not underflow */
                    614:       if (ob1.tag == SleftBraceTag) {
1.4       takayama  615:         rob = newObjectArray(size);
                    616:         for (i=0; i<size; i++) {
                    617:           (rob.rc.op)[i] = peek(size-1-i);
                    618:         }
                    619:         for (i=0; i<size+1; i++) {
                    620:           Kpop();
                    621:         }
                    622:         break;
1.1       maekawa   623:       }
                    624:       size++;
                    625:       ob1 = peek(size);
                    626:     }
                    627:     Kpush(rob);
                    628:     break;
                    629:
                    630:   case Sget:
                    631:     /* [a_0 ... a_{n-1}] i   get a_i */
                    632:     /* ob2               ob1 get     */
                    633:     ob1 = Kpop();
                    634:     ob2 = Kpop();
1.12      takayama  635:     Kpush(Kget(ob2,ob1));
1.1       maekawa   636:     break;
                    637:
                    638:   case Sput:
                    639:     /*    [a_0 ... a_{n-1}] index any put */
                    640:     /* ob3               ob2   ob1 put     */
                    641:     /* Or;  [[a_00 ....] [a_10 ....] ....] [1 0] any put. MultiIndex. */
                    642:     ob1 = Kpop(); ob2 = Kpop(); ob3 = Kpop();
                    643:     switch(ob2.tag) {
1.17      takayama  644:     case SuniversalNumber:
                    645:       ob2 = Kto_int32(ob2); /* do not break and go to Sinteger */
1.1       maekawa   646:     case Sinteger:
                    647:       switch(ob3.tag) {
                    648:       case Sarray:
1.4       takayama  649:         i = ob2.lc.ival;
                    650:         size = getoaSize(ob3);
                    651:         if ((0 <= i) && (i<size)) {
                    652:           getoa(ob3,i) = ob1;
                    653:         }else{
                    654:           errorStackmachine("Index is out of bound. (put)\n");
                    655:         }
                    656:         break;
1.1       maekawa   657:       case Sdollar:
1.4       takayama  658:         i = ob2.lc.ival;
                    659:         size = strlen(ob3.lc.str);
                    660:         if ((0 <= i) && (i<size)) {
                    661:           if (ob1.tag == Sdollar) {
                    662:             (ob3.lc.str)[i] = (ob1.lc.str)[0];
                    663:           }else{
                    664:             (ob3.lc.str)[i] = ob1.lc.ival;
                    665:           }
                    666:         }else{
                    667:           errorStackmachine("Index is out of bound. (put)\n");
                    668:         }
                    669:         break;
1.19      takayama  670:       case SbyteArray:
                    671:         i = ob2.lc.ival;
                    672:         size = getByteArraySize(ob3);
                    673:         if ((0 <= i) && (i<size)) {
                    674:                  if (ob1.tag != Sinteger) ob1 = Kto_int32(ob1);
                    675:           if (ob1.tag != Sinteger) errorStackmachine("One can put only integer.\n");
                    676:           KopByteArray(ob3)[i] = KopInteger(ob1);
                    677:         }else{
                    678:           errorStackmachine("Index is out of bound. (put)\n");
                    679:         }
                    680:         break;
1.1       maekawa   681:       default: errorStackmachine("Usage:put");
                    682:       }
                    683:       break;
                    684:     case Sarray:
                    685:       ob5 = ob3;
                    686:       n = getoaSize(ob2);
                    687:       for (i=0; i<n; i++) {
1.4       takayama  688:         if (ob5.tag != Sarray)
                    689:           errorStackmachine("Object pointed by the multi-index is not array (put)\n");
                    690:         ob4 = getoa(ob2,i);
1.17      takayama  691:         if (ob4.tag == SuniversalNumber) ob4 = Kto_int32(ob4);
1.4       takayama  692:         if (ob4.tag != Sinteger)
                    693:           errorStackmachine("Index has to be an integer. (put)\n");
                    694:         k = ob4.lc.ival;
                    695:         size = getoaSize(ob5);
                    696:         if ((0 <= k) && (k<size)) {
                    697:           if (i == n-1) {
                    698:             getoa(ob5,k) = ob1;
                    699:           }else{
                    700:             ob5 = getoa(ob5,k);
                    701:           }
                    702:         }else{
                    703:           errorStackmachine("Index is out of bound for the multi-index. (put)\n");
                    704:         }
1.1       maekawa   705:       }
                    706:       break;
                    707:     default: errorStackmachine("Usage:put");
                    708:     }
                    709:     break;
                    710:
                    711:   case Sindex:
                    712:     ob1 = Kpop();
                    713:     switch(ob1.tag) {
                    714:     case Sinteger: break;
                    715:     default: errorStackmachine("Usage:index");
                    716:     }
                    717:     size = ob1.lc.ival;
                    718:     Kpush(peek(size-1));
                    719:     break;
                    720:
                    721:   case Saload:
                    722:     /* [a1 a2 ... an] aload a1 a2 ... an [a1 ... an] */
                    723:     ob1 = Kpop();
                    724:     switch(ob1.tag) {
                    725:     case Sarray: break;
                    726:     default:
                    727:       errorStackmachine("Usage:aload");
                    728:     }
                    729:     size = getoaSize(ob1);
                    730:     for (i=0; i<size; i++) {
                    731:       Kpush(getoa(ob1,i));
                    732:     }
                    733:     Kpush(ob1);
                    734:
                    735:     break;
                    736:
                    737:   case Slength:
                    738:     /* [a_0 ... a_{n-1}] length n */
                    739:     /*               ob1 length rob */
                    740:     ob1 = Kpop();
                    741:     switch(ob1.tag) {
                    742:     case Sarray:
                    743:       size = getoaSize(ob1);
                    744:       Kpush(KpoInteger(size));
                    745:       break;
                    746:     case Sdollar:
                    747:       Kpush(KpoInteger(strlen(ob1.lc.str)));
                    748:       break;
                    749:     case Spoly:
                    750:       Kpush(KpoInteger(KpolyLength(KopPOLY(ob1))));
1.19      takayama  751:       break;
                    752:     case SbyteArray:
                    753:       Kpush(KpoInteger(getByteArraySize(ob1)));
1.1       maekawa   754:       break;
                    755:     default: errorStackmachine("Usage:length");
                    756:     }
                    757:     break;
                    758:
                    759:     /* Postscript primitives :relation */
                    760:   case Sequal:
                    761:     /* obj1 obj2 == bool */
                    762:     ob2 = Kpop();
                    763:     ob1 = Kpop();
                    764:     if(KooEqualQ(ob1,ob2)) {
                    765:       Kpush(KpoInteger(1));
                    766:     }else{
                    767:       Kpush(KpoInteger(0));
                    768:     }
                    769:     break;
                    770:
                    771:   case Sless:
                    772:     /* obj1 obj2 < bool */
                    773:     ob2 = Kpop();
                    774:     ob1 = Kpop();
                    775:     Kpush(KooLess(ob1,ob2));
                    776:     break;
                    777:
                    778:   case Sgreater:
                    779:     /* obj1 obj2 < bool */
                    780:     ob2 = Kpop();
                    781:     ob1 = Kpop();
                    782:     Kpush(KooGreater(ob1,ob2));
                    783:     break;
                    784:
                    785:
                    786:     /* Postscript primitives :controle */
                    787:   case Sloop:
                    788:     /* { .... exit .....} loop */
                    789:     ob1 = Kpop();
                    790:     switch(ob1.tag) {
                    791:     case SexecutableArray: break;
                    792:     default:
                    793:       errorStackmachine("Usage:loop");
                    794:       break;
                    795:     }
                    796:     while (1) {
1.15      takayama  797:       status = executeExecutableArray(ob1,(char *)NULL,1);
1.13      takayama  798:       if ((status & STATUS_BREAK) || GotoP) break;
1.1       maekawa   799:       /* here, do not return 1. Do not propagate exit signal outside of the
1.4       takayama  800:          loop. */
1.1       maekawa   801:     }
                    802:     break;
                    803:
                    804:   case Sfor:
                    805:     /* init inc limit { } for */
                    806:     /* ob4  ob3 ob2   ob1 */
                    807:     ob1 =Kpop(); ob2 = Kpop(); ob3 = Kpop(); ob4 = Kpop();
                    808:     switch(ob1.tag) {
                    809:     case SexecutableArray: break;
                    810:     default: errorStackmachine("Usage:for");
                    811:     }
                    812:     switch(ob2.tag) {
                    813:     case Sinteger: break;
                    814:     default:
                    815:       errorStackmachine("Usage:for The 3rd argument must be integer.");
                    816:     }
                    817:     switch(ob3.tag) {
                    818:     case Sinteger: break;
                    819:     default: errorStackmachine("Usage:for The 2nd argument must be integer.");
                    820:     }
                    821:     switch(ob4.tag) {
                    822:     case Sinteger: break;
                    823:     default: errorStackmachine("Usage:for The 1st argument must be integer.");
                    824:     }
                    825:     {
                    826:       int i,lim,inc,j;
                    827:       i = ob4.lc.ival;
                    828:       lim = ob2.lc.ival;
                    829:       inc = ob3.lc.ival;
                    830:       if (inc > 0) {
                    831:         /*
1.4       takayama  832:           if (lim < i) errorStackmachine("The initial value must not be greater than limit value (for).\n");
1.1       maekawa   833:         */
1.4       takayama  834:         for ( ; i<=lim; i += inc) {
                    835:           Kpush(KpoInteger(i));
1.15      takayama  836:           status = executeExecutableArray(ob1,(char *)NULL,1);
1.14      takayama  837:           if ((status & STATUS_BREAK) || GotoP) goto xyz;
1.13      takayama  838:                }
1.1       maekawa   839:       }else{
                    840:         /*
1.4       takayama  841:           if (lim > i) errorStackmachine("The initial value must not be less than limit value (for).\n");
1.1       maekawa   842:         */
1.4       takayama  843:         for ( ; i>=lim; i += inc) {
                    844:           Kpush(KpoInteger(i));
1.15      takayama  845:           status = executeExecutableArray(ob1,(char *)NULL,1);
1.14      takayama  846:           if ((status & STATUS_BREAK) || GotoP) goto xyz;
1.4       takayama  847:         }
1.1       maekawa   848:       }
1.4       takayama  849:     xyz:  ;
1.1       maekawa   850:     }
                    851:     break;
                    852:
                    853:   case Smap:
                    854:     ob2 = Kpop(); ob1 = Kpop();
                    855:     switch(ob1.tag) {
                    856:     case Sarray: break;
                    857:     default:
                    858:       errorStackmachine("Usage:map The 1st argument must be an array.");
                    859:       break;
                    860:     }
                    861:     switch(ob2.tag) {
                    862:     case SexecutableArray: break;
                    863:     default:
                    864:       errorStackmachine("Usage:map The 2nd argument must be an executable array.");
                    865:       break;
                    866:     }
                    867:     { int osize,size;
1.4       takayama  868:     int i,j;
                    869:     osize = getoaSize(ob1);
1.1       maekawa   870:
1.4       takayama  871:     /*KSexecuteString("[");*/
                    872:     rob.tag = SleftBraceTag;
                    873:     Kpush(rob);
1.1       maekawa   874:
1.4       takayama  875:     for (i=0; i<osize; i++) {
                    876:       Kpush(getoa(ob1,i));
1.15      takayama  877:       status = executeExecutableArray(ob2,(char *)NULL,0);
                    878:       if (status & STATUS_BREAK) goto foor;
1.4       takayama  879:     }
1.1       maekawa   880:     foor: ;
1.4       takayama  881:     /*KSexecuteString("]");*/
                    882:     {
                    883:       size = 0;
                    884:       ob1 = peek(size);
                    885:       while (!(Osp-size-1 < 0)) { /* while the stack is not underflow */
                    886:         if (ob1.tag == SleftBraceTag) {
                    887:           rob = newObjectArray(size);
                    888:           for (i=0; i<size; i++) {
                    889:             (rob.rc.op)[i] = peek(size-1-i);
                    890:           }
                    891:           for (i=0; i<size+1; i++) {
                    892:             Kpop();
                    893:           }
                    894:           break;
                    895:         }
                    896:         size++;
                    897:         ob1 = peek(size);
1.1       maekawa   898:       }
1.4       takayama  899:       Kpush(rob);
                    900:     }
1.1       maekawa   901:     }
                    902:     break;
                    903:
                    904:
                    905:   case Sifelse:
                    906:     /* bool { } { } ifelse */
                    907:     ob1 = Kpop();
                    908:     ob2 = Kpop();
                    909:     ob3 = Kpop();
                    910:     switch (ob1.tag) {
                    911:     case SexecutableArray: break;
                    912:     default: errorStackmachine("Usage:ifelse");
                    913:     }
                    914:     switch (ob2.tag) {
                    915:     case SexecutableArray: break;
                    916:     default: errorStackmachine("Usage:ifelse");
                    917:     }
                    918:     switch (ob3.tag) {
                    919:     case Sinteger: break;
                    920:     default: errorStackmachine("Usage:ifelse");
                    921:     }
                    922:     if (ob3.lc.ival) {
                    923:       /* execute ob2 */
                    924:       ob1 = ob2;
                    925:     }
                    926:     /* execute ob1 */
1.15      takayama  927:     status = executeExecutableArray(ob1,(char *)NULL,0);
1.14      takayama  928:     if (status & STATUS_BREAK) return(status);
1.13      takayama  929:
1.1       maekawa   930:     break;
                    931:
                    932:   case Sexec:
                    933:     /* { .........} exec */
                    934:     ob1 = Kpop();
                    935:     switch(ob1.tag) {
                    936:     case SexecutableArray: break;
                    937:     default: errorStackmachine("Usage:exec");
                    938:     }
1.15      takayama  939:        status = executeExecutableArray(ob1,(char *)NULL,0);
1.1       maekawa   940:     break;
                    941:
1.4       takayama  942:     /* Postscript primitives :dictionary */
1.1       maekawa   943:   case Sdef:
                    944:     ob2 = Kpop();
                    945:     ob1 = Kpop();
                    946:     /* type check */
                    947:     switch(ob1.tag) {
                    948:     case Sstring: break;
                    949:     default:
                    950:       errorStackmachine("Usage:def");
                    951:       break;
                    952:     }
                    953:     k=putUserDictionary(ob1.lc.str,(ob1.rc.op->lc).ival,
1.4       takayama  954:                         (ob1.rc.op->rc).ival,ob2,
                    955:                         CurrentContextp->userDictionary);
1.1       maekawa   956:     if (k < 0) {
                    957:       str = (char *)sGC_malloc(sizeof(char)*(strlen(ob1.lc.str) + 256));
                    958:       if (str == (char *)NULL) {
1.4       takayama  959:         errorStackmachine("No memory.\n");
1.1       maekawa   960:       }
                    961:       if (k == -PROTECT) {
1.4       takayama  962:         sprintf(str,"You rewrited the protected symbol %s.\n",ob1.lc.str);
                    963:         /*  cf. [(chattr) num sym] extension */
                    964:         warningStackmachine(str);
1.1       maekawa   965:       } else if (k == -ABSOLUTE_PROTECT) {
1.4       takayama  966:         sprintf(str,"You cannot rewrite the protected symbol %s.\n",ob1.lc.str);
                    967:         errorStackmachine(str);
1.1       maekawa   968:       } else errorStackmachine("Unknown return value of putUserDictioanry\n");
                    969:     }
                    970:     break;
                    971:
                    972:   case Sload:
                    973:     ob1 = Kpop();
                    974:     switch(ob1.tag) {
                    975:     case Sstring: break;
                    976:     default: errorStackmachine("Usage:load");
                    977:     }
                    978:     ob1 =  findUserDictionary(ob1.lc.str,
1.4       takayama  979:                               (ob1.rc.op->lc).ival,
                    980:                               (ob1.rc.op->rc).ival,
                    981:                               CurrentContextp);
1.1       maekawa   982:     if (ob1.tag == -1) Kpush(NullObject);
                    983:     else Kpush(ob1);
                    984:
                    985:     break;
                    986:
                    987:   case Sset:
                    988:     ob1 = Kpop();
                    989:     ob2 = Kpop();
                    990:     switch(ob1.tag) {
                    991:     case Sstring: break;
                    992:     default: errorStackmachine("Usage:set");
                    993:     }
                    994:     k= putUserDictionary(ob1.lc.str,(ob1.rc.op->lc).ival,
1.4       takayama  995:                          (ob1.rc.op->rc).ival,ob2,
                    996:                          CurrentContextp->userDictionary);
1.1       maekawa   997:     if (k < 0) {
                    998:       str = (char *)sGC_malloc(sizeof(char)*(strlen(ob1.lc.str) + 256));
                    999:       if (str == (char *)NULL) {
1.4       takayama 1000:         errorStackmachine("No memory.\n");
1.1       maekawa  1001:       }
                   1002:       if (k == -PROTECT) {
1.4       takayama 1003:         sprintf(str,"You rewrited the protected symbol %s. \n",ob1.lc.str);
                   1004:         warningStackmachine(str);
1.1       maekawa  1005:       } else if (k == -ABSOLUTE_PROTECT) {
1.4       takayama 1006:         sprintf(str,"You cannot rewrite the protected symbol %s.\n",ob1.lc.str);
                   1007:         errorStackmachine(str);
1.1       maekawa  1008:       } else errorStackmachine("Unknown return value of putUserDictioanry\n");
                   1009:     }
                   1010:     break;
                   1011:
                   1012:
                   1013:   case Sshow_systemdictionary:
                   1014:     fprintf(Fstack,"------------- system dictionary -------------------\n");
                   1015:     showSystemDictionary(0);
                   1016:     break;
                   1017:
                   1018:   case Sshow_user_dictionary:
                   1019:     showUserDictionary();
                   1020:     break;
                   1021:
                   1022:
                   1023:
                   1024:     /* Postscript primitives : convert */
                   1025:   case Sdata_conversion:
                   1026:     ob2 = Kpop();
                   1027:     ob1 = Kpop();
                   1028:     switch(ob2.tag) {
                   1029:     case Sdollar:
                   1030:       if (ob1.tag != Sclass) {
1.4       takayama 1031:         rob = KdataConversion(ob1,ob2.lc.str);
1.1       maekawa  1032:       }else{
1.4       takayama 1033:         rob = KclassDataConversion(ob1,ob2);
1.1       maekawa  1034:       }
                   1035:       break;
                   1036:     case Sarray:
                   1037:       rob = KclassDataConversion(ob1,ob2); break;
                   1038:     default: errorStackmachine("Usage:data_conversion");
                   1039:     }
                   1040:     Kpush(rob);
                   1041:     break;
                   1042:
                   1043:
                   1044:     /* Postscript ptimitives :file */
                   1045:   case Srun:
                   1046:     ob1 = Kpop();
                   1047:     switch(ob1.tag) {
                   1048:     case Sdollar: break;
                   1049:     case Sstring: break;
                   1050:     default:
                   1051:       errorStackmachine("Usage:run");
                   1052:       break;
                   1053:     }
                   1054:     getokenSM(OPEN,ob1.lc.str);  /* open the file, $filename$ run */
                   1055:     break;
                   1056:
                   1057:   case Sprint:
                   1058:     ob1 = Kpop();
                   1059:     printObject(ob1,0,Fstack);
                   1060:     break;
                   1061:
                   1062:   case Sfileopen: /* filename  mode   file  descripter */
1.4       takayama 1063:     /* ob2       ob1  */
1.1       maekawa  1064:     ob1 = Kpop();
                   1065:     ob2 = Kpop();
1.4       takayama 1066:     if (SecureMode) errorStackmachine("Security violation: you cannot open a file.");
1.1       maekawa  1067:     switch(ob1.tag) {
                   1068:     case Sdollar: break;
                   1069:     default: errorStackmachine("Usage:file");
                   1070:     }
                   1071:     switch(ob2.tag) {
                   1072:     case Sinteger: break;
                   1073:     case Sdollar: break;
                   1074:     default:errorStackmachine("Usage:file");
                   1075:     }
                   1076:     rob = NullObject;
                   1077:     if (ob2.tag == Sdollar) {
                   1078:       if (strcmp(ob2.lc.str,"%stdin") == 0) {
1.4       takayama 1079:         rob.tag = Sfile; rob.lc.str="%stdin"; rob.rc.file = stdin;
1.1       maekawa  1080:       }else if (strcmp(ob2.lc.str,"%stdout") == 0) {
1.4       takayama 1081:         rob.tag = Sfile; rob.lc.str="%stdout"; rob.rc.file = stdout;
1.1       maekawa  1082:       }else if (strcmp(ob2.lc.str,"%stderr") == 0) {
1.4       takayama 1083:         rob.tag = Sfile; rob.lc.str="%stderr"; rob.rc.file = stderr;
1.1       maekawa  1084:       }else if ( (rob.rc.file = fopen(ob2.lc.str,ob1.lc.str)) != (FILE *)NULL) {
1.4       takayama 1085:         rob.tag = Sfile; rob.lc.str = ob2.lc.str;
1.1       maekawa  1086:       }else {
1.4       takayama 1087:         errorStackmachine("I cannot open the file.");
1.1       maekawa  1088:       }
                   1089:     }else {
                   1090:       rob.rc.file = fdopen(ob2.lc.ival,ob1.lc.str);
                   1091:       if ( rob.rc.file != (FILE *)NULL) {
1.4       takayama 1092:         rob.tag = Sfile; rob.lc.ival = ob2.lc.ival;
1.1       maekawa  1093:       }else{
1.4       takayama 1094:         errorStackmachine("I cannot fdopen the given fd.");
1.1       maekawa  1095:       }
                   1096:     }
                   1097:
                   1098:     Kpush(rob);
                   1099:     break;
                   1100:
                   1101:
                   1102:   case Swritestring:
                   1103:     /* file string writestring
                   1104:        ob2  ob1
                   1105:     */
                   1106:     ob1 = Kpop();
                   1107:     ob2 = Kpop();
                   1108:     switch(ob2.tag) {
                   1109:     case Sfile: break;
                   1110:     default: errorStackmachine("Usage:writestring");
                   1111:     }
                   1112:     switch(ob1.tag) {
                   1113:     case Sdollar: break;
                   1114:     default:  errorStackmachine("Usage:writestring");
                   1115:     }
                   1116:     fprintf(ob2.rc.file,"%s",ob1.lc.str);
                   1117:     break;
                   1118:
                   1119:   case Sclosefile:
                   1120:     ob1 = Kpop();
                   1121:     switch(ob1.tag) {
                   1122:     case Sfile: break;
                   1123:     default: errorStackmachine("Usage:closefile");
                   1124:     }
                   1125:     if (fclose(ob1.rc.file) == EOF) {
                   1126:       errorStackmachine("I couldn't close the file.\n");
                   1127:     }
                   1128:     break;
                   1129:
                   1130:   case Spushfile: /* filename pushfile  string */
1.4       takayama 1131:     /* ob2       */
1.1       maekawa  1132:     ob2 = Kpop();
                   1133:     switch(ob2.tag) {
                   1134:     case Sdollar: break;
                   1135:     default:errorStackmachine("Usage:pushfile");
                   1136:     }
                   1137:     rob = NullObject;
                   1138:     if (strcmp(ob2.lc.str,"%stdin") == 0) {
                   1139:       ob1.tag = Sfile; ob1.lc.str="%stdin"; ob1.rc.file = stdin;
                   1140:     }else if (strcmp(ob2.lc.str,"%stdout") == 0) {
                   1141:       ob1.tag = Sfile; ob1.lc.str="%stdout"; ob1.rc.file = stdout;
                   1142:     }else if (strcmp(ob2.lc.str,"%stderr") == 0) {
                   1143:       ob1.tag = Sfile; ob1.lc.str="%stderr"; ob1.rc.file = stderr;
                   1144:     }else if ( (ob1.rc.file = fopen(ob2.lc.str,"r")) != (FILE *)NULL) {
                   1145:       ob1.tag = Sfile; ob1.lc.str = ob2.lc.str;
                   1146:     }else {
                   1147:       if (ob1.rc.file == (FILE *)NULL) {
1.4       takayama 1148:         char fname2[1024];
                   1149:         strcpy(fname2,getLOAD_SM1_PATH());
                   1150:         strcat(fname2,ob2.lc.str);
                   1151:         ob1.rc.file = fopen(fname2,"r");
                   1152:         if (ob1.rc.file == (FILE *)NULL) {
                   1153:           strcpy(fname2,LOAD_SM1_PATH);
                   1154:           strcat(fname2,ob2.lc.str);
                   1155:           ob1.rc.file = fopen(fname2,"r");
                   1156:           if (ob1.rc.file == (FILE *)NULL) {
                   1157:             fprintf(stderr,"Warning: Cannot open the file <<%s>> for loading in the current directory nor the library directories %s and %s.\n",ob2.lc.str,getLOAD_SM1_PATH(),LOAD_SM1_PATH);
                   1158:             errorStackmachine("I cannot open the file.");
                   1159:           }
                   1160:         }
1.1       maekawa  1161:       }
                   1162:     }
                   1163:
                   1164:     /* read the strings
1.4       takayama 1165:      */
1.1       maekawa  1166:     n = 256; j=0;
                   1167:     rob.tag = Sdollar; rob.lc.str = (char *) sGC_malloc(sizeof(char)*n);
                   1168:     if (rob.lc.str == (char *)NULL) errorStackmachine("No more memory.");
                   1169:     while ((i = fgetc(ob1.rc.file)) != EOF) {
                   1170:       if (j >= n-1) {
1.4       takayama 1171:         n = 2*n;
                   1172:         if (n <= 0) errorStackmachine("Too large file to put on the stack.");
1.1       maekawa  1173:         str = (char *)sGC_malloc(sizeof(char)*n);
1.4       takayama 1174:         if (str == (char *)NULL) errorStackmachine("No more memory.");
                   1175:         for (k=0; k< n/2; k++) str[k] = (rob.lc.str)[k];
                   1176:         rob.lc.str = str;
1.1       maekawa  1177:       }
                   1178:       (rob.lc.str)[j] = i; (rob.lc.str)[j+1] = '\0';
                   1179:       j++;
                   1180:     }
                   1181:
                   1182:     fclose(ob1.rc.file);
                   1183:     Kpush(rob);
                   1184:     break;
                   1185:
                   1186:     /* Postscript primitives :misc */
                   1187:   case Squit:
                   1188:     Kclose(); stackmachine_close();
                   1189:     exit(0);
                   1190:     break;
                   1191:
                   1192:   case Ssystem:
                   1193:     ob1 = Kpop();
                   1194:     switch(ob1.tag) {
                   1195:     case Sdollar: break;
                   1196:     case Sstring: break;
                   1197:     default: errorStackmachine("Usage:system");
                   1198:     }
1.4       takayama 1199:     if (SecureMode) errorStackmachine("Security violation.");
1.1       maekawa  1200:     system( ob1.lc.str );
                   1201:     break;
                   1202:
                   1203:   case Scat_n:
                   1204:     ob1 = Kpop();
                   1205:     switch(ob1.tag) {
                   1206:     case Sinteger: break;
                   1207:     default: errorStackmachine("Usage:cat_n");
                   1208:     }
                   1209:     size = ob1.lc.ival;
                   1210:     k = 0;
                   1211:     for (i=size-1; i>=0; i--) {
                   1212:       ob2 = peek(i);
                   1213:       switch(ob2.tag) {
                   1214:       case Sdollar: break;
1.4       takayama 1215:       default:  errorStackmachine("Usage:cat_n");
1.1       maekawa  1216:       }
                   1217:       k += strlen(ob2.lc.str);
                   1218:     }
                   1219:     ob1.tag = Sdollar;
                   1220:     ob1.lc.str = (char *)sGC_malloc(sizeof(char)*(k+1));
                   1221:     if (ob1.lc.str == (char *)NULL) {
                   1222:       errorStackmachine("No more memory.\n");
                   1223:     }
                   1224:     /* concatnate */
                   1225:     k = 0;
                   1226:     for (i=size-1; i>=0; i--) {
                   1227:       ob2 = peek(i);
                   1228:       strcpy(&((ob1.lc.str)[k]),ob2.lc.str);
                   1229:       k = strlen(ob1.lc.str);
                   1230:     }
                   1231:     /* clear the arguments */
                   1232:     for (i=size-1; i>=0; i--) {
                   1233:       ob2 = Kpop();
                   1234:     }
                   1235:     Kpush(ob1);
                   1236:     break;
                   1237:
                   1238:   case Sset_timer:
                   1239:     /* 118p */
                   1240:     if (timerStart) {
                   1241:       before_real = time(&before_real);
                   1242:       times(&before);
                   1243:       timerStart = 0; TimerOn = 1;
                   1244:     }else{
                   1245:       times(&after);
                   1246:       after_real = time(&after_real);
                   1247:       if (TimerOn) {
1.4       takayama 1248:         printf("User time: %f seconds, System time: %f seconds, Real time: %d s\n",
                   1249:                ((double)(after.tms_utime - before.tms_utime)) /100.0,
                   1250:                ((double)(after.tms_stime - before.tms_stime)) /100.0,
                   1251:                (int) (after_real-before_real));
                   1252:         /* In cases of Solaris and Linux, the unit of tms_utime seems to
                   1253:            be given 0.01 seconds. */
1.1       maekawa  1254:
                   1255:       }
                   1256:       timerStart = 1; TimerOn = 0;
                   1257:     }
                   1258:     break;
                   1259:
                   1260:   case Susage:
                   1261:     ob1 = Kpop();
                   1262:     Kusage(ob1);
                   1263:     break;
                   1264:
                   1265:   case Sto_records:
                   1266:     ob1 = Kpop();
                   1267:     switch(ob1.tag) {
                   1268:     case Sdollar: break;
                   1269:     default:  errorStackmachine("Usage:to_records");
                   1270:     }
                   1271:     ob2 = KtoRecords(ob1);
                   1272:     size = getoaSize(ob2);
                   1273:     for (i=0; i<size; i++) {
                   1274:       Kpush(getoa(ob2,i));
                   1275:     }
                   1276:     rob.tag = Sinteger;
                   1277:     rob.lc.ival = size;
                   1278:     Kpush(rob);
                   1279:     break;
                   1280:
                   1281:   case Ssystem_variable:
                   1282:     ob1 = Kpop();
                   1283:     switch(ob1.tag) {
                   1284:     case Sarray: break;
                   1285:     default: errorStackmachine("Usage:system_variable");
                   1286:     }
                   1287:     Kpush(KsystemVariable(ob1));
                   1288:     break;
                   1289:
                   1290:     /* kan primitives :kan :ring */
                   1291:   case Sset_order_by_matrix:
                   1292:     ob1 = Kpop();
                   1293:     KsetOrderByObjArray(ob1);
                   1294:     break;
                   1295:   case Sset_up_ring:
1.7       takayama 1296:        KresetDegreeShift();
1.1       maekawa  1297:     ob5 = Kpop(); ob4=Kpop(); ob3=Kpop(); ob2=Kpop(); ob1=Kpop();
                   1298:     KsetUpRing(ob1,ob2,ob3,ob4,ob5);
                   1299:     break;
                   1300:   case Sshow_ring:
                   1301:     KshowRing(CurrentRingp);
                   1302:     break;
                   1303:   case Sswitch_function:
                   1304:     ob1 = Kpop();
                   1305:     ob2 = Kpop();
                   1306:     ob3 = KswitchFunction(ob2,ob1);
                   1307:     if (!isNullObject(ob3)) {
                   1308:       Kpush(ob3);
                   1309:     }
                   1310:     break;
                   1311:   case Sprint_switch_status:
                   1312:     KprintSwitchStatus();
                   1313:     break;
                   1314:   case Sreplace:
                   1315:     ob2 = Kpop();
                   1316:     ob1 = Kpop();
                   1317:     Kpush(KoReplace(ob1,ob2));
                   1318:     break;
                   1319:
                   1320:   case Scoefficients:
                   1321:     ob2 = Kpop();
                   1322:     ob1 = Kpop();
                   1323:     Kpush(Kparts(ob1,ob2));
                   1324:     break;
                   1325:
                   1326:   case Scoeff2:
                   1327:     ob2 = Kpop();
                   1328:     ob1 = Kpop();
                   1329:     Kpush(Kparts2(ob1,ob2));
                   1330:     break;
                   1331:
                   1332:   case Sdegree:
                   1333:     ob2 = Kpop();
                   1334:     ob1 = Kpop();
                   1335:     Kpush(Kdegree(ob1,ob2));
                   1336:     break;
                   1337:   case Sspol:
                   1338:     ob2 = Kpop();
                   1339:     ob1 = Kpop();
                   1340:     Kpush(Ksp(ob1,ob2));
                   1341:     break;
                   1342:
                   1343:   case Seval:
                   1344:     ob1 = Kpop();
                   1345:     Kpush(Keval(ob1));
                   1346:     break;
                   1347:
                   1348:   case Sreduction:
                   1349:     ob2 = Kpop();
                   1350:     ob1 = Kpop();
                   1351:     Kpush(Kreduction(ob1,ob2));
                   1352:     break;
                   1353:
                   1354:   case Sgroebner :
                   1355:     ob1 = Kpop();
                   1356:     Kpush(Kgroebner(ob1));
                   1357:     break;
                   1358:
                   1359:   case Shomogenize :
                   1360:     ob1 = Kpop();
                   1361:     Kpush(homogenizeObject(ob1,&i));
                   1362:     break;
                   1363:
                   1364:   case Sprincipal :
                   1365:     ob1 = Kpop();
                   1366:     Kpush(oPrincipalPart(ob1));
                   1367:     break;
                   1368:
                   1369:   case Sinit:
                   1370:     ob2 = Kpop();
                   1371:     if (ob2.tag != Sarray) {
                   1372:       Kpush(Khead(ob2));
                   1373:     }else{
1.6       takayama 1374:       if (getoaSize(ob2) > 0) {
                   1375:         if (getoa(ob2,getoaSize(ob2)-1).tag == Spoly) {
                   1376:           Kpush(oInitW(ob2,newObjectArray(0)));
                   1377:         }else{
                   1378:           ob1 = Kpop();
                   1379:           Kpush(oInitW(ob1,ob2));
                   1380:         }
                   1381:       }else{
                   1382:         ob1 = Kpop();
                   1383:         Kpush(oInitW(ob1,ob2));
                   1384:       }
1.1       maekawa  1385:     }
                   1386:     break;
                   1387:
                   1388:   case Sextension:
                   1389:     ob1 = Kpop();
                   1390:     Kpush(Kextension(ob1));
                   1391:     break;
                   1392:
                   1393:   case Sgbext:
                   1394:     ob1 = Kpop();
                   1395:     Kpush(KgbExtension(ob1));
                   1396:     break;
                   1397:
                   1398:   case Snewstack:
                   1399:     ob1 = Kpop();
                   1400:     switch(ob1.tag) {
                   1401:     case Sinteger:
                   1402:       Kpush(newOperandStack(ob1.lc.ival));
                   1403:       break;
                   1404:     default:
                   1405:       errorStackmachine("Usage:newstack");
                   1406:       break;
                   1407:     }
                   1408:     break;
                   1409:
                   1410:   case Ssetstack:
                   1411:     ob1 = Kpop();
                   1412:     switch(ob1.tag) {
                   1413:     case Sclass:
                   1414:       setOperandStack(ob1);
                   1415:       break;
                   1416:     default:
                   1417:       errorStackmachine("Usage:setstack");
                   1418:       break;
                   1419:     }
                   1420:     break;
                   1421:
                   1422:   case Sstdstack:
                   1423:     stdOperandStack();
                   1424:     break;
                   1425:
                   1426:   case Slc:
                   1427:     ob1 = Kpop();
                   1428:     switch (ob1.tag) {
                   1429:     case Sclass:
                   1430:       Kpush(KpoInteger(ob1.lc.ival));
                   1431:       break;
                   1432:     default:
                   1433:       errorStackmachine("Usage:lc");
                   1434:       break;
                   1435:     }
                   1436:     break;
                   1437:
                   1438:   case Src:
                   1439:     ob1 = Kpop();
                   1440:     switch (ob1.tag) {
                   1441:     case Sclass:
                   1442:       if (ClassTypes[ob1.lc.ival] == CLASS_OBJ) {
1.4       takayama 1443:         Kpush(*(ob1.rc.op));
1.1       maekawa  1444:       }else{
1.4       takayama 1445:         warningStackmachine("<<obj rc >> works only for a class object with CLASS_OBJ attribute.\n");
                   1446:         Kpush(ob1);
1.1       maekawa  1447:       }
                   1448:       break;
                   1449:     default:
                   1450:       errorStackmachine("Usage:rc");
                   1451:       break;
                   1452:     }
                   1453:     break;
                   1454:
                   1455:   case Snewcontext:
                   1456:     ob1 = Kpop();
                   1457:     ob2 = Kpop();
                   1458:     switch(ob1.tag) {
                   1459:     case Sclass:
                   1460:       if (ob2.tag == Sdollar) {
1.4       takayama 1461:         Kpush(KnewContext(ob1,KopString(ob2)));
1.1       maekawa  1462:       }else  errorStackmachine("Usage:newcontext");
                   1463:       break;
                   1464:     default:
                   1465:       errorStackmachine("Usage:newcontext");
                   1466:       break;
                   1467:     }
                   1468:     break;
                   1469:
                   1470:   case Ssetcontext:
                   1471:     ob1 = Kpop();
                   1472:     switch(ob1.tag) {
                   1473:     case Sclass:
                   1474:       KsetContext(ob1);
                   1475:       break;
                   1476:     default:
                   1477:       errorStackmachine("Usage:setcontext");
                   1478:       break;
                   1479:     }
                   1480:     break;
                   1481:
                   1482:   case Ssupercontext:
                   1483:     ob1 = Kpop();
                   1484:     switch(ob1.tag) {
                   1485:     case Sclass:
                   1486:       Kpush(getSuperContext(ob1));
                   1487:       break;
                   1488:     default:
                   1489:       errorStackmachine("Usage:supercontext");
                   1490:       break;
                   1491:     }
                   1492:     break;
                   1493:
                   1494:   case Ssendmsg:
                   1495:     /* ob2 { .........} sendmsg */
                   1496:     /* cf. debug/kobj.sm1    */
                   1497:     ob1 = Kpop();
                   1498:     ob2 = Kpop();
                   1499:     switch(ob1.tag) {
                   1500:     case SexecutableArray: break;
                   1501:     default: errorStackmachine("Usage:sendmsg");
                   1502:     }
                   1503:     ccflag = 0;
                   1504:     if (ob2.tag == Sarray ) {
                   1505:       if (getoaSize(ob2) >= 1) {
1.4       takayama 1506:         ob3 = getoa(ob2,0);
                   1507:         if (ectag(ob3) == CLASSNAME_CONTEXT) {
                   1508:           contextControl(CCPUSH); ccflag = 1; /* push the current context. */
                   1509:           CurrentContextp = (struct context *)ecbody(ob3);
                   1510:         }
1.1       maekawa  1511:       }
                   1512:     }
                   1513:     if (!ccflag) {
                   1514:       contextControl(CCPUSH); ccflag = 1;
                   1515:       CurrentContextp = PrimitiveContextp;
                   1516:     }
                   1517:     /* normal exec. */
                   1518:     Kpush(ob2);
1.15      takayama 1519:     status = executeExecutableArray(ob1,(char *)NULL,0);
1.13      takayama 1520:
1.1       maekawa  1521:     if (ccflag) {
                   1522:       contextControl(CCPOP); ccflag = 0; /* recover the Current context. */
                   1523:     }
1.14      takayama 1524:
1.1       maekawa  1525:     break;
                   1526:   case Ssendmsg2:
                   1527:     /* ob2 ob4 { .........} sendmsg2 */
                   1528:     /* Context is determined by ob2 or ob1 */
                   1529:     ob1 = Kpop();
                   1530:     ob4 = Kpop();
                   1531:     ob2 = Kpop();
                   1532:     switch(ob1.tag) {
                   1533:     case SexecutableArray: break;
                   1534:     default: errorStackmachine("Usage:sendmsg2");
                   1535:     }
                   1536:     ccflag = 0;
                   1537:     if (ob2.tag == Sarray ) {
                   1538:       if (getoaSize(ob2) >= 1) {
1.4       takayama 1539:         ob3 = getoa(ob2,0);
                   1540:         if (ectag(ob3) == CLASSNAME_CONTEXT) {
                   1541:           contextControl(CCPUSH); ccflag = 1; /* push the current context. */
                   1542:           CurrentContextp = (struct context *)ecbody(ob3);
                   1543:         }
1.1       maekawa  1544:       }
                   1545:     }
                   1546:     if (!ccflag && ob4.tag == Sarray) {
                   1547:       if (getoaSize(ob4) >= 1) {
1.4       takayama 1548:         ob3 = getoa(ob4,0);
                   1549:         if (ectag(ob3) == CLASSNAME_CONTEXT) {
                   1550:           contextControl(CCPUSH); ccflag = 1; /* push the current context. */
                   1551:           CurrentContextp = (struct context *)ecbody(ob3);
                   1552:         }
1.1       maekawa  1553:       }
                   1554:     }
                   1555:     if (!ccflag) {
                   1556:       contextControl(CCPUSH); ccflag = 1;
                   1557:       CurrentContextp = PrimitiveContextp;
                   1558:     }
                   1559:     /* normal exec. */
                   1560:     Kpush(ob2); Kpush(ob4);
1.14      takayama 1561:
                   1562:     /* We cannot use executeExecutableArray(ob1,(char *)NULL) because of
                   1563:        the quote mode. Think about it later. */
1.1       maekawa  1564:     tokenArray = ob1.lc.tokenArray;
                   1565:     size = ob1.rc.ival;
                   1566:     for (i=0; i<size; i++) {
                   1567:       token = tokenArray[i];
1.10      takayama 1568:       InSendmsg2 = 1;
1.1       maekawa  1569:       status = executeToken(token);
1.10      takayama 1570:       InSendmsg2 = 0;
1.13      takayama 1571:
                   1572:       if (status & STATUS_INFIX) {
                   1573:                if (status & DO_QUOTE) errorStackmachine("infix op with DO_QUOTE\n");
                   1574:         if (i == size-1) errorStackmachine("infix operator at the end(sendmsg2).\n");
                   1575:         infixOn = 1; infixToken = tokenArray[i];
                   1576:         infixToken.tflag |= NO_DELAY; continue;
                   1577:       }else if (infixOn) {
                   1578:         infixOn = 0; status = executeToken(infixToken);
                   1579:         if (status & STATUS_BREAK) break;
                   1580:       }
                   1581:
                   1582:       if (QuoteMode && (status & DO_QUOTE)) {
1.8       takayama 1583:         /* generate tree object, for kan/k0 */
1.20    ! takayama 1584:         struct object qob = OINIT;
        !          1585:         struct object qattr = OINIT;
        !          1586:         struct object qattr2 = OINIT;
1.8       takayama 1587:         if (i==0) { Kpop(); Kpop();}
                   1588:         qob = newObjectArray(3);
                   1589:         qattr = newObjectArray(1);
                   1590:         qattr2 = newObjectArray(2);
                   1591:                /* Set the node name of the tree. */
                   1592:         if (token.kind == ID) {
                   1593:           putoa(qob,0,KpoString(token.token));
                   1594:         }else{
                   1595:           putoa(qob,0,KpoString("unknown"));
                   1596:         }
                   1597:         /* Set the attibute list; class=className */
                   1598:         if (ob2.tag == Sdollar) {
1.11      takayama 1599:           putoa(qattr2,0,KpoString("cd"));
1.8       takayama 1600:           putoa(qattr2,1,ob2);
                   1601:         }else{
1.11      takayama 1602:           putoa(qattr2,0,KpoString("class"));
1.8       takayama 1603:           putoa(qattr2,1,KpoString(CurrentContextp->contextName));
                   1604:         }
                   1605:         putoa(qattr,0,qattr2);
                   1606:         putoa(qob,1,qattr);
                   1607:         putoa(qob,2,ob4);  /* Argument */
                   1608:         qob = KpoTree(qob);
                   1609:         Kpush(qob);
1.13      takayama 1610:       } else if (status & STATUS_BREAK) break;
                   1611:
1.1       maekawa  1612:     }
                   1613:     if (ccflag) {
                   1614:       contextControl(CCPOP); ccflag = 0;
                   1615:       /* recover the Current context. */
                   1616:       /* Note that it is not recovered in case of error. */
                   1617:     }
                   1618:
                   1619:     break;
                   1620:   case Sprimmsg:
                   1621:     /* { .........} primmsg */
                   1622:     /* Context is PrimitiveContext. */
                   1623:     ob1 = Kpop();
                   1624:     switch(ob1.tag) {
                   1625:     case SexecutableArray: break;
                   1626:     default: errorStackmachine("Usage:primmsg");
                   1627:     }
                   1628:     contextControl(CCPUSH); ccflag = 1;
                   1629:     CurrentContextp = PrimitiveContextp;
                   1630:     /* normal exec. */
1.15      takayama 1631:     status = executeExecutableArray(ob1,(char *)NULL,0);
1.1       maekawa  1632:     contextControl(CCPOP); /* recover the Current context. */
                   1633:     break;
                   1634:
                   1635:   case Ssupmsg2:
                   1636:     /* ob2 ob4 { .........} supmsg2 */
                   1637:     /* Context is super class of ob2 */
                   1638:     ob1 = Kpop();
                   1639:     ob4 = Kpop();
                   1640:     ob2 = Kpop();
                   1641:     switch(ob1.tag) {
                   1642:     case SexecutableArray: break;
                   1643:     default: errorStackmachine("Usage:supmsg2");
                   1644:     }
                   1645:     ccflag = 0;
                   1646:     if (ob2.tag == Sarray ) {
                   1647:       if (getoaSize(ob2) >= 1) {
1.4       takayama 1648:         ob3 = getoa(ob2,0);
                   1649:         if (ectag(ob3) == CLASSNAME_CONTEXT) {
                   1650:           if (((struct context *)ecbody(ob3))->super == NULL) {
                   1651:             errorStackmachine("supmsg2: SuperClass is NIL.");
                   1652:           }
                   1653:           contextControl(CCPUSH); ccflag = 1; /* push the current context. */
                   1654:           CurrentContextp = ((struct context *)ecbody(ob3))->super;
                   1655:         }
1.1       maekawa  1656:       }
                   1657:     }
                   1658:     if (!ccflag && (ob4.tag == Sarray) ) {
                   1659:       if (getoaSize(ob4) >= 1) {
1.4       takayama 1660:         ob3 = getoa(ob4,0);
                   1661:         if (ectag(ob3) == CLASSNAME_CONTEXT) {
                   1662:           if (((struct context *)ecbody(ob3))->super == NULL) {
                   1663:             errorStackmachine("supmsg2: SuperClass is NIL.");
                   1664:           }
                   1665:           contextControl(CCPUSH); ccflag = 1; /* push the current context. */
                   1666:           CurrentContextp = ((struct context *)ecbody(ob3))->super;
                   1667:         }
1.1       maekawa  1668:       }
                   1669:     }
                   1670:     if (!ccflag) {
                   1671:       contextControl(CCPUSH); ccflag = 1;
                   1672:       CurrentContextp = PrimitiveContextp;
                   1673:     }
                   1674:     /* normal exec. */
                   1675:     Kpush(ob2); Kpush(ob4);
1.15      takayama 1676:     status = executeExecutableArray(ob1,(char *)NULL,0);
1.1       maekawa  1677:     if (ccflag) {
                   1678:       contextControl(CCPOP); ccflag = 0; /* recover the Current context. */
                   1679:     }
                   1680:
                   1681:     break;
                   1682:
                   1683:   case Serror:
                   1684:     ob1 = peek(0);
                   1685:     if (ob1.tag == Sdollar) {
                   1686:       /* compose error message */
                   1687:       ob = Kpop();
                   1688:       str = (char *) sGC_malloc(sizeof(char)*(strlen("error operator : ")+
1.4       takayama 1689:                                               strlen(KopString(ob1))+ 10));
1.1       maekawa  1690:       if (str == NULL) errorStackmachine("No more memory.");
                   1691:       strcpy(str,"error operator : ");
                   1692:       strcat(str,KopString(ob1));
                   1693:       errorStackmachine(str);
                   1694:     }else{
                   1695:       errorStackmachine("error operator.");
                   1696:     }
                   1697:     break;
                   1698:   case Smpzext:
                   1699:     ob1 = Kpop();
                   1700:     Kpush(KmpzExtension(ob1));
                   1701:     break;
                   1702:
                   1703:   case Scclass:
                   1704:     ob3 = Kpop();
                   1705:     ob2 = Kpop();
                   1706:     ob1 = Kpop();
                   1707:     /* [class-tag super-obj] size [class-tag]  cclass */
                   1708:     Kpush(KcreateClassIncetance(ob1,ob2,ob3));
                   1709:     break;
                   1710:
                   1711:   case Stest:
                   1712:     /* test is used for a test of a new function. */
                   1713:     ob2 = Kpop();
                   1714:     ob1 = Kpop();
                   1715:     Kpush(hilberto(ob1,ob2));
                   1716:     /*
1.4       takayama 1717:       {
                   1718:       ob1 = Kpop();
                   1719:       Kpush(test(ob1));
1.1       maekawa  1720:
1.4       takayama 1721:       }
1.1       maekawa  1722:     */
1.9       takayama 1723:     break;
                   1724:
                   1725:   case Soxshell:
                   1726:     ob1 = Kpop();
                   1727:     Kpush(KoxShell(ob1));
1.1       maekawa  1728:     break;
1.5       takayama 1729:
                   1730:   case Stlimit:
                   1731:     /* {   } time tlimit */
                   1732:     ob2 = Kpop();
                   1733:     ob1 = Kpop();
                   1734:     switch(ob2.tag) {
                   1735:        case Sinteger: break;
                   1736:        default: errorStackmachine("Usage:tlimit"); break;
                   1737:        }
                   1738:     switch(ob1.tag) {
                   1739:     case SexecutableArray: break;
                   1740:     default:
                   1741:       errorStackmachine("Usage:tlimit");
                   1742:       break;
                   1743:     }
                   1744:        n = ob2.lc.ival;
                   1745:        if (n > 0) {
                   1746:          signal(SIGALRM,ctrlC); alarm((unsigned int) n);
1.15      takayama 1747:       status = executeExecutableArray(ob1,(char *)NULL,0);
1.5       takayama 1748:          cancelAlarm();
                   1749:        }else{
                   1750:       before_real = time(&before_real);
                   1751:       times(&before);
1.15      takayama 1752:       status = executeExecutableArray(ob1,(char *)NULL,0);
1.5       takayama 1753:       times(&after);
                   1754:       after_real = time(&after_real);
                   1755:          ob1 = newObjectArray(3);
                   1756:          putoa(ob1,0,KpoInteger((int) after.tms_utime - before.tms_utime));
                   1757:          putoa(ob1,1,KpoInteger((int) after.tms_stime - before.tms_stime));
                   1758:          putoa(ob1,2,KpoInteger((int) (after_real-before_real)));
                   1759:          Kpush(ob1);
                   1760:     }
                   1761:        break;
1.1       maekawa  1762:
                   1763:
                   1764:   default:
                   1765:     errorStackmachine("Unknown Soperator type. \n");
                   1766:   }
                   1767:   return(0);  /* normal exit */
                   1768: }
                   1769:
                   1770:

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