version 1.10, 2002/11/04 10:53:56 |
version 1.23, 2004/09/12 01:53:11 |
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/* $OpenXM: OpenXM/src/kan96xx/Kan/stackmachine.c,v 1.9 2002/02/24 10:27:18 takayama Exp $ */ |
/* $OpenXM: OpenXM/src/kan96xx/Kan/stackmachine.c,v 1.22 2004/09/12 01:32:08 takayama Exp $ */ |
/* stackmachin.c */ |
/* stackmachin.c */ |
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#include <stdio.h> |
#include <stdio.h> |
Line 54 struct context *PrimitiveContextp = &StandardContext; |
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Line 54 struct context *PrimitiveContextp = &StandardContext; |
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static struct object ObjTmp; /* for poor compiler */ |
static struct object ObjTmp; /* for poor compiler */ |
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int Calling_ctrlC_hook = 0; |
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int StandardMacros = 1; |
int StandardMacros = 1; |
int StartAFile = 0; |
int StartAFile = 0; |
char *StartFile; |
char *StartFile; |
Line 74 static void pstack(void); |
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Line 76 static void pstack(void); |
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static struct object executableStringToExecutableArray(char *str); |
static struct object executableStringToExecutableArray(char *str); |
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extern int SerialCurrent; |
extern int SerialCurrent; |
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extern int QuoteMode; |
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int SGClock = 0; |
int SGClock = 0; |
int UserCtrlC = 0; |
int UserCtrlC = 0; |
int OXlock = 0; |
int OXlock = 0; |
int OXlockSaved = 0; |
int OXlockSaved = 0; |
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char *UD_str; |
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int UD_attr; |
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struct object * newObject() |
struct object * newObject() |
{ |
{ |
struct object *r; |
struct object *r; |
Line 215 int putUserDictionary(str,h0,h1,ob,dic) |
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Line 221 int putUserDictionary(str,h0,h1,ob,dic) |
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} |
} |
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) |
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Line 229 int putUserDictionary(str,h0,h1,ob,dic) |
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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) |
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Line 252 struct object findUserDictionary(str,h0,h1,cp) |
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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; |
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/* Set char *UD_str, int UD_attr (attributes) */ |
{ |
{ |
int x; |
int x; |
struct dictionary *dic; |
struct dictionary *dic; |
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extern char *UD_str; |
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extern int UD_attr; |
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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) { |
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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; |
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{ |
{ |
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); |
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int hash1(str) |
int hash1(str) |
char *str; |
char *str; |
{ |
{ |
return(8-(str[0]%8)); |
return(8-((unsigned char)(str[0])%8)); |
} |
} |
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void hashInitialize(struct dictionary *dic) |
void hashInitialize(struct dictionary *dic) |
Line 729 void scanner() { |
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Line 740 void scanner() { |
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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; |
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extern int InSendmsg2; |
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int infixOn = 0; |
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struct tokens infixToken; |
getokenSM(INIT); |
getokenSM(INIT); |
initSystemDictionary(); |
initSystemDictionary(); |
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Line 750 void scanner() { |
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Line 764 void scanner() { |
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} |
} |
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/* 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 773 void scanner() { |
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Line 787 void scanner() { |
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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 786 void scanner() { |
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Line 800 void scanner() { |
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} |
} |
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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 815 void scanner() { |
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Line 829 void scanner() { |
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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. */ |
KSexecuteString(" (Computation is interrupted.) "); |
Calling_ctrlC_hook = 1; |
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KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */ |
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} |
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Calling_ctrlC_hook = 0; |
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KSexecuteString(" (Computation is interrupted.) "); /* move to ctrlC-hook? */ |
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InSendmsg2 = 0; |
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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");*/ |
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/* fprintf(stderr,"token.token=%s, status=%d, infixOn=%d\n",token.token,status,infixOn); */ |
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if (status & STATUS_INFIX) { |
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infixOn = 1; infixToken = token; infixToken.tflag |= NO_DELAY; |
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}else if (infixOn) { |
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infixOn = 0; |
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if ((status=executeToken(infixToken)) < 0) break; |
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} |
} |
} |
} |
} |
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extern int SGClock; |
extern int SGClock; |
extern int UserCtrlC; |
extern int UserCtrlC; |
extern int OXlock; |
extern int OXlock; |
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signal(sig,SIG_IGN); |
signal(sig,SIG_IGN); |
/* see 133p */ |
/* see 133p */ |
cancelAlarm(); |
cancelAlarm(); |
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return; |
return; |
} |
} |
if (ErrorMessageMode != 1) { |
if (ErrorMessageMode != 1) { |
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(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"); |
} |
} |
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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 896 int executeToken(token) |
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Line 925 int executeToken(token) |
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int status; |
int status; |
struct tokens *tokenArray; |
struct tokens *tokenArray; |
int i,h0,h1; |
int i,h0,h1; |
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int infixOn; |
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struct tokens infixToken; |
extern int WarningMessageMode; |
extern int WarningMessageMode; |
extern int Strict; |
extern int Strict; |
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extern int InSendmsg2; |
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infixOn = 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 944 int executeToken(token) |
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Line 977 int executeToken(token) |
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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; |
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if (!(token.tflag & NO_DELAY)) { |
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if ((ob.tag >= 0) && (UD_attr & ATTR_INFIX)) { |
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tracePopName(); return STATUS_INFIX; |
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} |
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} |
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) { |
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tracePushName(token.token); |
tokenArray = ob.lc.tokenArray; |
tokenArray = ob.lc.tokenArray; |
size = ob.rc.ival; |
size = ob.rc.ival; |
for (i=0; i<size; i++) { |
for (i=0; i<size; i++) { |
status = executeToken(tokenArray[i]); |
status = executeToken(tokenArray[i]); |
if (status != 0) return(status); |
if ((status & STATUS_BREAK) || (status < 0)) { |
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tracePopName(); return(status); |
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} |
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if (status & STATUS_INFIX) { |
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if (i == size-1) errorStackmachine("Infix operator at the end of an executable array."); |
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infixOn = 1; infixToken = tokenArray[i]; |
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infixToken.tflag |= NO_DELAY; |
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continue; |
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}else if (infixOn) { |
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infixOn = 0; |
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status = executeToken(infixToken); |
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if ((status & STATUS_BREAK) || (status < 0)) { |
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tracePopName(); return(status); |
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} |
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} |
} |
} |
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tracePopName(); |
}else { |
}else { |
Kpush(ob); |
Kpush(ob); |
} |
} |
} else if (primitive) { |
} else if (primitive) { |
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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); |
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tracePopName(); |
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return(status); |
} else { |
} else { |
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if (QuoteMode) { |
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if (InSendmsg2) return(DO_QUOTE); |
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else { |
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Kpush(KpoString(token.token)); |
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return(0); /* normal exit.*/ |
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} |
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} |
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 1043 errorStackmachine(str) |
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Line 1108 errorStackmachine(str) |
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fprintf(stderr,str); |
fprintf(stderr,str); |
} |
} |
fprintf(stderr,"\n"); |
fprintf(stderr,"\n"); |
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(void) traceShowStack(); |
} |
} |
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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 1114 KSexecuteString(s) |
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Line 1181 KSexecuteString(s) |
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} |
} |
recursive--; |
recursive--; |
if (localCatchCtrlC) { signal(SIGINT, sigfunc); } |
if (localCatchCtrlC) { signal(SIGINT, sigfunc); } |
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if (!Calling_ctrlC_hook) { |
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Calling_ctrlC_hook = 1; |
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KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */ |
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} |
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Calling_ctrlC_hook = 0; |
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KSexecuteString(" (Computation is interrupted.) "); /* move to ctrlC-hook?*/ |
return(-1); |
return(-1); |
}else{ } |
}else{ } |
}else{ |
}else{ |
Line 1130 KSexecuteString(s) |
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Line 1203 KSexecuteString(s) |
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} |
} |
recursive = 0; |
recursive = 0; |
if (localCatchCtrlC) { signal(SIGINT, sigfunc); } |
if (localCatchCtrlC) { signal(SIGINT, sigfunc); } |
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if (!Calling_ctrlC_hook) { |
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Calling_ctrlC_hook = 1; |
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KSexecuteString(" ctrlC-hook "); /* Execute User Defined functions. */ |
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} |
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Calling_ctrlC_hook = 0; |
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Calling_ctrlC_hook = 0; |
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KSexecuteString(" (Computation is interrupted.) "); |
return(-1); |
return(-1); |
}else { } |
}else { } |
} |
} |
Line 1137 KSexecuteString(s) |
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Line 1217 KSexecuteString(s) |
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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 1158 KSdefineMacros() { |
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Line 1238 KSdefineMacros() { |
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struct object ob; |
struct object ob; |
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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 1191 void KSstart() { |
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Line 1271 void KSstart() { |
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} else { } */ |
} else { } */ |
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/* 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 1480 struct object KSdupErrors() { |
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Line 1560 struct object KSdupErrors() { |
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void cancelAlarm() { |
void cancelAlarm() { |
alarm((unsigned int) 0); |
alarm((unsigned int) 0); |
signal(SIGALRM,SIG_DFL); |
signal(SIGALRM,SIG_DFL); |
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} |
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/* back-trace */ |
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#define TraceNameStackSize 3000 |
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char *TraceNameStack[TraceNameStackSize]; |
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int TraceNameStackp = 0; |
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void tracePushName(char *s) { |
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char *t; |
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/* |
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t = (char *)sGC_malloc(strlen(s)+1); |
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if (t == NULL) { |
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fprintf(stderr,"No more memory.\n"); return; |
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} |
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strcpy(t,s); |
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*/ |
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t = s; |
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TraceNameStack[TraceNameStackp++] = t; |
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if (TraceNameStackp >= TraceNameStackSize) { |
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fprintf(stderr,"Warning: TraceNameStack overflow. Clearing the stack.\n"); |
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TraceNameStackp = 0; |
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} |
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} |
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void traceClearStack(void) { |
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TraceNameStackp = 0; |
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} |
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char *tracePopName(void) { |
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if (TraceNameStackp <= 0) return (char *) NULL; |
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return TraceNameStack[--TraceNameStackp]; |
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} |
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#define TRACE_MSG_SIZE 320 |
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char *traceShowStack(void) { |
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char *s; |
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char *t; |
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int p; |
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s = (char *) sGC_malloc(TRACE_MSG_SIZE); |
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if (s == NULL) { |
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fprintf(stderr,"No more memory.\n"); return NULL; |
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} |
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sprintf(s,"Trace: "); |
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p = strlen(s); |
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do { |
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t = tracePopName(); |
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if (t == NULL) { |
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s[p] = ';'; s[p+1] = 0; |
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break; |
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}else if ((strlen(t) + p -10) > TRACE_MSG_SIZE) { |
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/* fprintf(stderr,"p=%d, TraceNameStackp=%d, strlen(t)=%d, t=%s\n",p,TraceNameStackp,strlen(t),t); */ |
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strcpy(&(s[p])," ..."); |
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break; |
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} |
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strcpy(&(s[p]),t); p += strlen(t); |
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strcpy(&(s[p]),"<-"); p += 2; |
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} while (t != (char *)NULL); |
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fprintf(stderr,"%s\n",s); |
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return s; |
} |
} |