[BACK]Return to stackmachine.c CVS log [TXT][DIR] Up to [local] / OpenXM / src / kan96xx / Kan

Diff for /OpenXM/src/kan96xx/Kan/stackmachine.c between version 1.8 and 1.30

version 1.8, 2001/12/19 23:39:53 version 1.30, 2005/06/09 04:47:16
Line 1 
Line 1 
 /* $OpenXM: OpenXM/src/kan96xx/Kan/stackmachine.c,v 1.7 2001/05/04 01:06:25 takayama Exp $ */  /* $OpenXM: OpenXM/src/kan96xx/Kan/stackmachine.c,v 1.29 2004/09/19 00:47:47 takayama Exp $ */
 /*   stackmachin.c */  /*   stackmachin.c */
   
 #include <stdio.h>  #include <stdio.h>
Line 54  struct context *PrimitiveContextp = &StandardContext;
Line 54  struct context *PrimitiveContextp = &StandardContext;
   
 static struct object ObjTmp; /* for poor compiler */  static struct object ObjTmp; /* for poor compiler */
   
   int Calling_ctrlC_hook = 0;
   
 int StandardMacros = 1;  int StandardMacros = 1;
 int StartAFile = 0;  int StartAFile = 0;
 char *StartFile;  char *StartFile;
Line 72  static strToInteger(char *);
Line 74  static strToInteger(char *);
 static power(int s,int i);  static power(int s,int i);
 static void pstack(void);  static void pstack(void);
 static struct object executableStringToExecutableArray(char *str);  static struct object executableStringToExecutableArray(char *str);
   static int isThereExecutableArrayOnStack(int n);
   
 extern int SerialCurrent;  extern int SerialCurrent;
   extern int QuoteMode;
   
 int SGClock = 0;  int SGClock = 0;
 int UserCtrlC = 0;  int UserCtrlC = 0;
 int OXlock = 0;  int OXlock = 0;
 int OXlockSaved = 0;  int OXlockSaved = 0;
   
   char *UD_str;
   int  UD_attr;
   
 struct object * newObject()  struct object * newObject()
 {  {
   struct object *r;    struct object *r;
Line 88  struct object * newObject() 
Line 95  struct object * newObject() 
   r->tag = 0;    r->tag = 0;
   (r->lc).ival = 0;    (r->lc).ival = 0;
   (r->rc).ival = 0;    (r->rc).ival = 0;
     r->attr = NULL;
   return(r);    return(r);
 }  }
   
Line 215  int putUserDictionary(str,h0,h1,ob,dic)
Line 223  int putUserDictionary(str,h0,h1,ob,dic)
   }    }
   r = x;    r = x;
   if (Strict2) {    if (Strict2) {
     switch((dic[x]).attr) {      switch(((dic[x]).attr) & (PROTECT | ABSOLUTE_PROTECT)) {
     case PROTECT:      case PROTECT:
       r = -PROTECT;   /* Protected, but we rewrite it. */        r = -PROTECT;   /* Protected, but we rewrite it. */
       break;        break;
Line 223  int putUserDictionary(str,h0,h1,ob,dic)
Line 231  int putUserDictionary(str,h0,h1,ob,dic)
       r = -ABSOLUTE_PROTECT;  /* Protected and we do not rewrite it. */        r = -ABSOLUTE_PROTECT;  /* Protected and we do not rewrite it. */
       return(r);        return(r);
     default:      default:
       (dic[x]).attr = 0;        /* (dic[x]).attr = 0; */ /* It is not necesarry, I think. */
       break;        break;
     }      }
   }    }
Line 246  struct object findUserDictionary(str,h0,h1,cp)   
Line 254  struct object findUserDictionary(str,h0,h1,cp)   
      char *str;    /* key */       char *str;    /* key */
      int h0,h1;    /* The hashing values of the key. */       int h0,h1;    /* The hashing values of the key. */
      struct context *cp;       struct context *cp;
            /* Set char *UD_str, int UD_attr (attributes) */
 {  {
   int x;    int x;
   struct dictionary *dic;    struct dictionary *dic;
     extern char *UD_str;
     extern int UD_attr;
     UD_str = NULL; UD_attr = -1;
   dic = cp->userDictionary;    dic = cp->userDictionary;
   x = h0;    x = h0;
   while (1) {    while (1) {
     if ((dic[x]).key == EMPTY) { break; }      if ((dic[x]).key == EMPTY) { break; }
     if (strcmp((dic[x]).key,str) == 0) {      if (strcmp((dic[x]).key,str) == 0) {
             UD_str = (dic[x]).key; UD_attr = (dic[x]).attr;
       return( (dic[x]).obj );        return( (dic[x]).obj );
     }      }
     x = (x+h1) % USER_DICTIONARY_SIZE;      x = (x+h1) % USER_DICTIONARY_SIZE;
Line 284  int putUserDictionary2(str,h0,h1,attr,dic)
Line 297  int putUserDictionary2(str,h0,h1,attr,dic)
     }      }
     return(0);      return(0);
   }    }
     if (OR_ATTR_FOR_ALL_WORDS & attr) {
       for (i=0; i<USER_DICTIONARY_SIZE; i++) {
         if ((dic[i]).key !=EMPTY) (dic[i]).attr |= attr&(~OR_ATTR_FOR_ALL_WORDS);
       }
       return(0);
     }
   x = h0;    x = h0;
   if (str[0] == '\0') {    if (str[0] == '\0') {
     errorKan1("%s\n","putUserDictionary2(): You are defining a value with the null key.");      errorKan1("%s\n","putUserDictionary2(): You are defining a value with the null key.");
Line 346  int hash0(str)
Line 365  int hash0(str)
 {  {
   int h=0;    int h=0;
   while (*str != '\0') {    while (*str != '\0') {
     h = ((h*128)+(*str)) % USER_DICTIONARY_SIZE;      h = ((h*128)+((unsigned char)(*str))) % USER_DICTIONARY_SIZE;
     str++;      str++;
   }    }
   return(h);    return(h);
Line 355  int hash0(str)
Line 374  int hash0(str)
 int hash1(str)  int hash1(str)
      char *str;       char *str;
 {  {
   return(8-(str[0]%8));    return(8-((unsigned char)(str[0])%8));
 }  }
   
 void hashInitialize(struct dictionary *dic)  void hashInitialize(struct dictionary *dic)
Line 447  struct object peek(k)
Line 466  struct object peek(k)
   }    }
 }  }
   
   static int isThereExecutableArray(struct object ob) {
     int n,i;
     struct object otmp;
     if (ob.tag == SexecutableArray) return(1);
     if (ob.tag == Sarray) {
       n = getoaSize(ob);
       for (i=0; i<n; i++) {
         otmp = getoa(ob,i);
         if (isThereExecutableArray(otmp)) return(1);
       }
       return(0);
     }
     /* Class and list is not checked, since there is no parser
        to directory translte these objects. */
     return(0);
   }
   static int isThereExecutableArrayOnStack(int n) {
     int i;
     struct object ob;
     for (i=0; i<n; i++) {
       if (Osp-i-1 < 0) return(0);
       ob = peek(i);
       if (isThereExecutableArray(ob)) return(1);
     }
     return(0);
   }
   
 struct object newOperandStack(int size)  struct object newOperandStack(int size)
 {  {
Line 729  void scanner() {
Line 774  void scanner() {
   struct object ob;    struct object ob;
   extern int Quiet;    extern int Quiet;
   extern void ctrlC();    extern void ctrlC();
   int tmp;    int tmp, status;
   char *tmp2;    char *tmp2;
   extern int ErrorMessageMode;    extern int ErrorMessageMode;
   int jval;    int jval;
     extern int InSendmsg2;
     int infixOn = 0;
     struct tokens infixToken;
     extern int RestrictedMode, RestrictedMode_saved;
   getokenSM(INIT);    getokenSM(INIT);
   initSystemDictionary();    initSystemDictionary();
   
   #if defined(__CYGWIN__)
     if (sigsetjmp(EnvOfStackMachine,1)) {
   #else
   if (setjmp(EnvOfStackMachine)) {    if (setjmp(EnvOfStackMachine)) {
   #endif
     /* do nothing in the case of error */      /* do nothing in the case of error */
     fprintf(stderr,"An error or interrupt in reading macros, files and command strings.\n");      fprintf(stderr,"An error or interrupt in reading macros, files and command strings.\n");
     exit(10);      exit(10);
Line 746  void scanner() {
Line 799  void scanner() {
   }    }
   
   /* setup quiet mode or not */    /* setup quiet mode or not */
   token.kind = EXECUTABLE_STRING;    token.kind = EXECUTABLE_STRING; token.tflag = 0;
   if (Quiet) {    if (Quiet) {
     token.token = " /@@@.quiet 1 def ";      token.token = " /@@@.quiet 1 def ";
   }else {    }else {
     token.token = " /@@@.quiet 0 def ";      token.token = " /@@@.quiet 0 def ";
   }    }
   executeToken(token); /* execute startup commands */    executeToken(token); /* execute startup commands */
   token.kind = ID;    token.kind = ID; token.tflag = 0;
   token.token = "exec";    token.token = "exec";
   token = lookupTokens(token); /* set hashing values */    token = lookupTokens(token); /* set hashing values */
   tmp = findSystemDictionary(token.token);    tmp = findSystemDictionary(token.token);
Line 769  void scanner() {
Line 822  void scanner() {
     StartFile = (char *)sGC_malloc(sizeof(char)*(strlen(StartFile)+      StartFile = (char *)sGC_malloc(sizeof(char)*(strlen(StartFile)+
                                                  40));                                                   40));
     sprintf(StartFile,"$%s$ run\n",tmp2);      sprintf(StartFile,"$%s$ run\n",tmp2);
     token.kind = EXECUTABLE_STRING;      token.kind = EXECUTABLE_STRING; token.tflag = 0;
     token.token = StartFile;      token.token = StartFile;
     executeToken(token);    /* execute startup commands */      executeToken(token);    /* execute startup commands */
     token.kind = ID;      token.kind = ID; token.tflag = 0;
     token.token = "exec";      token.token = "exec";
     token = lookupTokens(token); /* set hashing values */      token = lookupTokens(token); /* set hashing values */
     tmp = findSystemDictionary(token.token);      tmp = findSystemDictionary(token.token);
Line 782  void scanner() {
Line 835  void scanner() {
   }    }
   
   if (StartAString) {    if (StartAString) {
     token.kind = EXECUTABLE_STRING;      token.kind = EXECUTABLE_STRING;  token.tflag = 0;
     token.token = StartString;      token.token = StartString;
     executeToken(token);    /* execute startup commands */      executeToken(token);    /* execute startup commands */
     token.kind = ID;      token.kind = ID; token.tflag = 0;
     token.token = "exec";      token.token = "exec";
     token = lookupTokens(token); /* set hashing values */      token = lookupTokens(token); /* set hashing values */
     tmp = findSystemDictionary(token.token);      tmp = findSystemDictionary(token.token);
Line 796  void scanner() {
Line 849  void scanner() {
   
   
   for (;;) {    for (;;) {
   #if defined(__CYGWIN__)
       if (jval=sigsetjmp(EnvOfStackMachine,1)) {
   #else
     if (jval=setjmp(EnvOfStackMachine)) {      if (jval=setjmp(EnvOfStackMachine)) {
   #endif
       /* ***  The following does not work properly.  ****        /* ***  The following does not work properly.  ****
          if (jval == 2) {           if (jval == 2) {
          if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {           if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {
Line 807  void scanner() {
Line 864  void scanner() {
       if (DebugStack >= 1) {        if (DebugStack >= 1) {
         fprintf(Fstack,"\nscanner> ");          fprintf(Fstack,"\nscanner> ");
       }        }
       KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */        if (!Calling_ctrlC_hook) { /* to avoid recursive call of ctrlC-hook. */
           Calling_ctrlC_hook = 1; RestrictedMode = 0;
           KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */
           RestrictedMode = RestrictedMode_saved;
         }
         Calling_ctrlC_hook = 0;
         KSexecuteString(" (Computation is interrupted.) "); /* move to ctrlC-hook? */
         InSendmsg2 = 0;
         infixOn = 0;
       continue ;        continue ;
     } else {  }      } else {  }
     if (DebugStack >= 1) { printOperandStack(); }      if (DebugStack >= 1) { printOperandStack(); }
     token = getokenSM(GET);      token = getokenSM(GET);
     if ((tmp=executeToken(token)) < 0) break;      if ((status=executeToken(token)) < 0) break;
     /***if (tmp == 1) fprintf(stderr," --- exit --- \n");*/      /***if (status == 1) fprintf(stderr," --- exit --- \n");*/
       /* fprintf(stderr,"token.token=%s, status=%d, infixOn=%d\n",token.token,status,infixOn); */
       if (status & STATUS_INFIX) {
         infixOn = 1;  infixToken = token; infixToken.tflag |= NO_DELAY;
       }else if (infixOn) {
         infixOn = 0;
         if ((status=executeToken(infixToken)) < 0) break;
       }
   }    }
 }  }
   
Line 826  void ctrlC(sig)
Line 898  void ctrlC(sig)
   extern int SGClock;    extern int SGClock;
   extern int UserCtrlC;    extern int UserCtrlC;
   extern int OXlock;    extern int OXlock;
     extern int RestrictedMode, RestrictedMode_saved;
   
   signal(sig,SIG_IGN);    signal(sig,SIG_IGN);
   /* see 133p */    /* see 133p */
     RestrictedMode = RestrictedMode_saved;
     cancelAlarm();
     if (sig == SIGALRM) {
       fprintf(stderr,"ctrlC by SIGALRM\n");
     }
   
   if (SGClock) {    if (SGClock) {
     UserCtrlC = 1;      UserCtrlC = 1;
     fprintf(stderr,"ctrl-c is locked because of gc.\n");      fprintf(stderr,"ctrl-c is locked because of gc.\n");
     signal(SIGINT,ctrlC);      signal(sig,ctrlC);  if (sig == SIGALRM) alarm((unsigned int)10);
     return;      return;
   }    }
   if (OXlock) {    if (OXlock) {
Line 846  void ctrlC(sig)
Line 924  void ctrlC(sig)
       unlockCtrlCForOx();        unlockCtrlCForOx();
     }      }
     fprintf(stderr,"ctrl-c is locked because of ox lock %d.\n",UserCtrlC);      fprintf(stderr,"ctrl-c is locked because of ox lock %d.\n",UserCtrlC);
     signal(SIGINT,ctrlC);      signal(sig,ctrlC);  if (sig == SIGALRM) alarm((unsigned int)10);
     return;      return;
   }    }
   if (ErrorMessageMode != 1) {    if (ErrorMessageMode != 1) {
       (void *) traceShowStack();
     fprintf(Fstack,"User interruption by ctrl-C. We are in the top-level.\n");      fprintf(Fstack,"User interruption by ctrl-C. We are in the top-level.\n");
     fprintf(Fstack,"Type in quit in order to exit sm1.\n");      fprintf(Fstack,"Type in quit in order to exit sm1.\n");
   }    }
     traceClearStack();
   if (GotoP) {    if (GotoP) {
     fprintf(Fstack,"The interpreter was looking for the label <<%s>>. It is also aborted.\n",GotoLabel);      fprintf(Fstack,"The interpreter was looking for the label <<%s>>. It is also aborted.\n",GotoLabel);
     GotoP = 0;      GotoP = 0;
Line 867  void ctrlC(sig)
Line 947  void ctrlC(sig)
   */    */
   getokenSM(INIT); /* It might fix the bug above. 1992/11/14 */    getokenSM(INIT); /* It might fix the bug above. 1992/11/14 */
   signal(SIGINT,ctrlC);    signal(SIGINT,ctrlC);
   #if defined(__CYGWIN__)
     siglongjmp(EnvOfStackMachine,2);
   #else
   longjmp(EnvOfStackMachine,2); /* returns 2 for ctrl-C */    longjmp(EnvOfStackMachine,2); /* returns 2 for ctrl-C */
   #endif
 }  }
   
 int executeToken(token)  int executeToken(token)
Line 877  int executeToken(token)
Line 961  int executeToken(token)
   int primitive;    int primitive;
   int size;    int size;
   int status;    int status;
   struct tokens *tokenArray;  
   int i,h0,h1;    int i,h0,h1;
   extern int WarningMessageMode;    extern int WarningMessageMode;
   extern int Strict;    extern int Strict;
     extern int InSendmsg2;
     extern int RestrictedMode, RestrictedMode_saved;
     int localRestrictedMode_saved;
   
     localRestrictedMode_saved = 0;
   if (GotoP) { /* for goto */    if (GotoP) { /* for goto */
     if (token.kind == ID && isLiteral(token.token)) {      if (token.kind == ID && isLiteral(token.token)) {
       if (strcmp(&((token.token)[1]),GotoLabel) == 0) {        if (strcmp(&((token.token)[1]),GotoLabel) == 0) {
Line 927  int executeToken(token)
Line 1014  int executeToken(token)
       h1 = ((token.object.lc.op)->rc).ival;        h1 = ((token.object.lc.op)->rc).ival;
       ob=findUserDictionary(token.token,h0,h1,CurrentContextp);        ob=findUserDictionary(token.token,h0,h1,CurrentContextp);
       primitive = ((token.object.rc.op)->lc).ival;        primitive = ((token.object.rc.op)->lc).ival;
         if (!(token.tflag & NO_DELAY)) {
           if ((ob.tag >= 0) && (UD_attr & ATTR_INFIX)) {
             return STATUS_INFIX;
           }
         }
       if (ob.tag >= 0) {        if (ob.tag >= 0) {
         /* there is a definition in the user dictionary */          /* there is a definition in the user dictionary */
         if (ob.tag == SexecutableArray) {          if (ob.tag == SexecutableArray) {
           tokenArray = ob.lc.tokenArray;            if (RestrictedMode) {
           size = ob.rc.ival;              if (UD_attr & ATTR_EXPORT) {
           for (i=0; i<size; i++) {                localRestrictedMode_saved = RestrictedMode; RestrictedMode = 0;
             status = executeToken(tokenArray[i]);                if (isThereExecutableArrayOnStack(5)) {
             if (status != 0) return(status);                                  int i;
                   for (i=0; i<5; i++) { (void) Kpop(); }
                   errorStackmachine("Executable array is on the argument stack (restricted mode). They are automatically removed.\n");
                             }
               }else{
                 tracePushName(token.token);
                 errorStackmachine("You cannot execute this function in restricted mode.\n");
               }
           }            }
   
             status = executeExecutableArray(ob,token.token,0);
   
             if (localRestrictedMode_saved) RestrictedMode = localRestrictedMode_saved;
             if ((status & STATUS_BREAK) || (status < 0)) return status;
         }else {          }else {
           Kpush(ob);            Kpush(ob);
         }          }
       } else if (primitive) {        } else if (primitive) {
           tracePushName(token.token);
         /* system operator */          /* system operator */
         ob.tag = Soperator;          ob.tag = Soperator;
         ob.lc.ival = primitive;          ob.lc.ival = primitive;
         return(executePrimitive(ob));          status = executePrimitive(ob);
           tracePopName();
           return(status);
       } else {        } else {
           if (QuoteMode) {
             if (InSendmsg2) return(DO_QUOTE);
             else {
               Kpush(KpoString(token.token));
               return(0); /* normal exit.*/
             }
                   }
         if (WarningMessageMode == 1 || WarningMessageMode == 2) {          if (WarningMessageMode == 1 || WarningMessageMode == 2) {
           char tmpc[1024];            char tmpc[1024];
           if (strlen(token.token) < 900) {            if (strlen(token.token) < 900) {
Line 992  errorStackmachine(str)
Line 1106  errorStackmachine(str)
   char message0[1024];    char message0[1024];
   char *message;    char *message;
   extern int ErrorMessageMode;    extern int ErrorMessageMode;
     extern int RestrictedMode, RestrictedMode_saved;
     RestrictedMode = RestrictedMode_saved;
     cancelAlarm();
   if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {    if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {
     pushErrorStack(KnewErrorPacket(SerialCurrent,-1,str));      pushErrorStack(KnewErrorPacket(SerialCurrent,-1,str));
   }    }
Line 1025  errorStackmachine(str)
Line 1142  errorStackmachine(str)
       fprintf(stderr,str);        fprintf(stderr,str);
     }      }
     fprintf(stderr,"\n");      fprintf(stderr,"\n");
       (void) traceShowStack();
   }    }
     traceClearStack();
   if (GotoP) {    if (GotoP) {
     fprintf(Fstack,"The interpreter was looking for the label <<%s>>. It is also aborted.\n",GotoLabel);      fprintf(Fstack,"The interpreter was looking for the label <<%s>>. It is also aborted.\n",GotoLabel);
     GotoP = 0;      GotoP = 0;
Line 1071  KSexecuteString(s)
Line 1190  KSexecuteString(s)
   jmp_buf saved_EnvOfStackMachine;    jmp_buf saved_EnvOfStackMachine;
   void (*sigfunc)();    void (*sigfunc)();
   int localCatchCtrlC ;    int localCatchCtrlC ;
     extern int RestrictedMode, RestrictedMode_saved;
   
   localCatchCtrlC = CatchCtrlC;    localCatchCtrlC = CatchCtrlC;
   /* If CatchCtrlC is rewrited in this program,    /* If CatchCtrlC is rewrited in this program,
Line 1083  KSexecuteString(s)
Line 1203  KSexecuteString(s)
   
   if (KSPushEnvMode) {    if (KSPushEnvMode) {
     *saved_EnvOfStackMachine = *EnvOfStackMachine;      *saved_EnvOfStackMachine = *EnvOfStackMachine;
   #if defined(__CYGWIN__)
       if (jval = sigsetjmp(EnvOfStackMachine,1)) {
   #else
     if (jval = setjmp(EnvOfStackMachine)) {      if (jval = setjmp(EnvOfStackMachine)) {
   #endif
       *EnvOfStackMachine = *saved_EnvOfStackMachine;        *EnvOfStackMachine = *saved_EnvOfStackMachine;
       if (jval == 2) {        if (jval == 2) {
         if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {          if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {
Line 1092  KSexecuteString(s)
Line 1216  KSexecuteString(s)
       }        }
       recursive--;        recursive--;
       if (localCatchCtrlC) { signal(SIGINT, sigfunc); }        if (localCatchCtrlC) { signal(SIGINT, sigfunc); }
         if (!Calling_ctrlC_hook) {
           Calling_ctrlC_hook = 1; RestrictedMode = 0;
           KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */
           RestrictedMode_saved;
         }
         Calling_ctrlC_hook = 0;
         KSexecuteString(" (Computation is interrupted.) "); /* move to ctrlC-hook?*/
       return(-1);        return(-1);
     }else{ }      }else{ }
   }else{    }else{
     if (recursive == 0) {      if (recursive == 0) {
   #if defined(__CYGWIN__)
         if (jval=sigsetjmp(EnvOfStackMachine,1)) {
   #else
       if (jval=setjmp(EnvOfStackMachine)) {        if (jval=setjmp(EnvOfStackMachine)) {
   #endif
         if (jval == 2) {          if (jval == 2) {
           if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {            if (ErrorMessageMode == 1 || ErrorMessageMode == 2) {
             pushErrorStack(KnewErrorPacket(SerialCurrent,-1,"User interrupt by ctrl-C."));              pushErrorStack(KnewErrorPacket(SerialCurrent,-1,"User interrupt by ctrl-C."));
Line 1104  KSexecuteString(s)
Line 1239  KSexecuteString(s)
         }          }
         recursive = 0;          recursive = 0;
         if (localCatchCtrlC) { signal(SIGINT, sigfunc); }          if (localCatchCtrlC) { signal(SIGINT, sigfunc); }
           if (!Calling_ctrlC_hook) {
             Calling_ctrlC_hook = 1; RestrictedMode = 0;
             KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */
             RestrictedMode = RestrictedMode_saved;
           }
           Calling_ctrlC_hook = 0;
           Calling_ctrlC_hook = 0;
                   KSexecuteString(" (Computation is interrupted.) ");
         return(-1);          return(-1);
       }else { }        }else { }
     }      }
Line 1111  KSexecuteString(s)
Line 1254  KSexecuteString(s)
   
   recursive++;    recursive++;
   token.token = s;    token.token = s;
   token.kind = EXECUTABLE_STRING;    token.kind = EXECUTABLE_STRING; token.tflag = 0;
   executeToken(token);    executeToken(token);
   token.kind = ID;    token.kind = ID; token.tflag = 0;
   token.token = "exec";    token.token = "exec";
   token = lookupTokens(token); /* no use */    token = lookupTokens(token); /* no use */
   tmp = findSystemDictionary(token.token);    tmp = findSystemDictionary(token.token);
Line 1132  KSdefineMacros() {
Line 1275  KSdefineMacros() {
   struct object ob;    struct object ob;
   
   if (StandardMacros && (strlen(SMacros))) {    if (StandardMacros && (strlen(SMacros))) {
     token.kind = EXECUTABLE_STRING;      token.kind = EXECUTABLE_STRING; token.tflag = 0;
     token.token = SMacros;      token.token = SMacros;
     executeToken(token);    /* execute startup commands */      executeToken(token);    /* execute startup commands */
     token.kind = ID;      token.kind = ID; token.tflag = 0;
     token.token = "exec";      token.token = "exec";
     token = lookupTokens(token); /* no use */      token = lookupTokens(token); /* no use */
     tmp = findSystemDictionary(token.token);      tmp = findSystemDictionary(token.token);
Line 1165  void KSstart() {
Line 1308  void KSstart() {
     } else {  }  */      } else {  }  */
   
   /* setup quiet mode or not */    /* setup quiet mode or not */
   token.kind = EXECUTABLE_STRING;    token.kind = EXECUTABLE_STRING; token.tflag = 0;
   if (Quiet) {    if (Quiet) {
     token.token = " /@@@.quiet 1 def ";      token.token = " /@@@.quiet 1 def ";
   }else {    }else {
     token.token = " /@@@.quiet 0 def ";      token.token = " /@@@.quiet 0 def ";
   }    }
   executeToken(token); /* execute startup commands */    executeToken(token); /* execute startup commands */
   token.kind = ID;    token.kind = ID; token.tflag = 0;
   token.token = "exec";    token.token = "exec";
   token = lookupTokens(token); /* set hashing values */    token = lookupTokens(token); /* set hashing values */
   tmp = findSystemDictionary(token.token);    tmp = findSystemDictionary(token.token);
Line 1450  struct object KSdupErrors() {
Line 1593  struct object KSdupErrors() {
   }    }
   return(rob);    return(rob);
 }  }
   
   void cancelAlarm() {
     alarm((unsigned int) 0);
     signal(SIGALRM,SIG_DFL);
   }
   
   /* back-trace */
   #define TraceNameStackSize 3000
   char *TraceNameStack[TraceNameStackSize];
   int TraceNameStackp = 0;
   void tracePushName(char *s) {
     char *t;
     /*
     t = (char *)sGC_malloc(strlen(s)+1);
     if (t == NULL) {
       fprintf(stderr,"No more memory.\n"); return;
     }
     strcpy(t,s);
     */
     t = s;
     TraceNameStack[TraceNameStackp++] = t;
     if (TraceNameStackp >= TraceNameStackSize) {
       fprintf(stderr,"Warning: TraceNameStack overflow. Clearing the stack.\n");
       TraceNameStackp = 0;
     }
   }
   void traceClearStack(void) {
     TraceNameStackp = 0;
   }
   char *tracePopName(void) {
     if (TraceNameStackp <= 0) return (char *) NULL;
     return TraceNameStack[--TraceNameStackp];
   }
   #define TRACE_MSG_SIZE 320
   char *traceShowStack(void) {
     char *s;
     char *t;
     int p;
     s = (char *) sGC_malloc(TRACE_MSG_SIZE);
     if (s == NULL) {
       fprintf(stderr,"No more memory.\n"); return NULL;
     }
     sprintf(s,"Trace: ");
     p = strlen(s);
     do {
       t = tracePopName();
       if (t == NULL) {
         s[p] = ';'; s[p+1] = 0;
         break;
       }else if ((strlen(t) + p) > (TRACE_MSG_SIZE-10)) {
             /* fprintf(stderr,"p=%d, TraceNameStackp=%d, strlen(t)=%d, t=%s\n",p,TraceNameStackp,strlen(t),t); */
         strcpy(&(s[p])," ...");
         break;
       }
       strcpy(&(s[p]),t); p += strlen(t);
       strcpy(&(s[p]),"<-"); p += 2;
     } while (t != (char *)NULL);
     fprintf(stderr,"%s\n",s);
     return s;
   }
   
   /*
     if (fname != NULL) fname is pushed to the trace stack.
    */
   int executeExecutableArray(struct object ob,char *fname,int withGotoP) {
     struct tokens *tokenArray;
     int size,i;
     int status;
     int infixOn;
     struct tokens infixToken;
     extern int GotoP;
   
     infixOn = 0;
     if (ob.tag != SexecutableArray) errorStackmachine("Error (executeTokenArray): the argument is not a token array.");
   
     if (fname != NULL) tracePushName(fname);
     tokenArray = ob.lc.tokenArray;
     size = ob.rc.ival;
     for (i=0; i<size; i++) {
       status = executeToken(tokenArray[i]);
       if ((status & STATUS_BREAK) || (status < 0) || (withGotoP && GotoP)) {
         if (fname != NULL) tracePopName();
         return(status);
       }
   
       if (status & STATUS_INFIX) {
         if (i == size-1) errorStackmachine("Infix operator at the end of an executable array.");
         infixOn = 1; infixToken = tokenArray[i];
         infixToken.tflag |= NO_DELAY;
         continue;
       }else if (infixOn) {
         infixOn = 0;
         status = executeToken(infixToken);
         if ((status & STATUS_BREAK) || (status < 0) || (withGotoP && GotoP)) {
           if (fname != NULL) tracePopName();
           return(status);
         }
       }
     }
     if (fname != NULL) tracePopName();
     return(0); /* normal exit */
   }
Legend:
Removed from v.1.8  
changed lines
  Added in v.1.30
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>