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Momo: stack machine, part 4

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tildearrow 2024-06-04 17:52:55 -05:00
parent 5f7925ceb4
commit 8352a10ffe
1 changed files with 24 additions and 4 deletions
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28
src/momo/momo.c
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@ -285,8 +285,8 @@ unsigned int runStackMachine(struct StackData* data, size_t count, unsigned int
printf("ERROR: invalid operation\n"); \
return 4; \
} \
if (state[curState].curBigOp[0] && isCompare) { \
printf("PENDING BIG OP...\n"); \
if ((state[curState].curBigOp[0] && isCompare) || state[curState].endExpr) { \
printf("PENDING BIG OP... %s\n",state[curState].curBigOp); \
if (strcmp(state[curState].curBigOp,"&&")==0) { \
data[*pc].ins=MOMO_STACK_CMP_AND; \
data[*pc].param=0; \
@ -305,7 +305,9 @@ unsigned int runStackMachine(struct StackData* data, size_t count, unsigned int
} \
\
memset(state[curState].curOp,0,8); \
state[curState].curOpLen=0;
memset(state[curState].curIdent,0,32); \
state[curState].curOpLen=0; \
state[curState].curIdentLen=0;
// errors:
// 0: success
@ -324,6 +326,7 @@ unsigned char compileExprSub(const char** ptr, struct StackData* data, size_t* p
unsigned char curIdentLen;
unsigned char curOpLen;
unsigned char startBranch;
unsigned char endExpr;
size_t pendingBranch;
} state[8];
unsigned char curState=0;
@ -376,6 +379,20 @@ unsigned char compileExprSub(const char** ptr, struct StackData* data, size_t* p
state[curState].startBranch=1;
doNotPush=1;
state[curState].isOp=1;
FINISH_OP;
if (state[curState].curBigOp[0]) {
printf("PENDING BIG OP... %s\n",state[curState].curBigOp);
if (strcmp(state[curState].curBigOp,"&&")==0) {
data[*pc].ins=MOMO_STACK_CMP_AND;
data[*pc].param=0;
(*pc)++;
} else if (strcmp(state[curState].curBigOp,"||")==0) {
data[*pc].ins=MOMO_STACK_CMP_OR;
data[*pc].param=0;
(*pc)++;
}
memset(state[curState].curBigOp,0,8);
}
break;
case ':':
// special case
@ -385,16 +402,19 @@ unsigned char compileExprSub(const char** ptr, struct StackData* data, size_t* p
break;
case '(':
// start a new state
printf("PUSH STATE.\n");
state[curState].isOp=0;
curState++;
memset(&state[curState],0,sizeof(struct ExprState));
continue;
break;
case ')':
// pop last state
printf("POP STATE.\n");
FINISH_OP;
curState--;
if (state[curState].curBigOp[0]) {
printf("PENDING BIG OP...\n");
printf("PENDING BIG OP... %s\n",state[curState].curBigOp);
if (strcmp(state[curState].curBigOp,"&&")==0) {
data[*pc].ins=MOMO_STACK_CMP_AND;
data[*pc].param=0;