//all input instructions are assumed to be valid.
//i.e. sytactically correct and no illegal operations
//(e.g. division by zero)
//variables may not start with digits
//variables are assumed to be integers
int main(){
char curr_var[MAX_VAR_IDENT_LENGTH];
char curr_operator;
char curr_operand[MAX_VAR_IDENT_LENGTH];
/*Input from file for testing purposes
FILE *fin;
if( (fin = fopen("in.txt","r")) == NULL){
printf("file not found\n");
exit(1);
}
fscanf(fin,"%s",inst);
*/
/*input from keyboard*/
scanf("%s",inst);
/**/
instIndex = 0;
int instLen = strlen(inst)-1;
while(instIndex<instLen){
readVariable(curr_var);
readOperator(&curr_operator);
readOperand(curr_operand);
compute(curr_var, curr_operator, curr_operand);
}
printVars();
return 0;
}
void
Message::print(XStr& str)
{
if(external)
str << "extern ";
if(templat)
templat->genSpec(str);
str << "message ";
type->print(str);
printVars(str);
str << ";\n";
}
template <typename ... Values> void failedRequire(const char* whenName, const char* thenName, const char * line, const char * condition, const char *valueNames, const Values & ... values) {
if ( lastErrdWhen != loopNumber ){
printf("GIVEN %s: Failed when #%i \nWHEN %s: \n", testName , loopNumber, whenName);
lastErrdWhen = loopNumber;
}
if (valueNames != 0 && valueNames[0] != 0){
printf("THEN %s… FAILS line %s: %s. values: ", thenName, line, condition);
printVars(valueNames, values...);
} else {
printf("THEN %s… FAILS line %s: %s\n", thenName, line, condition );
}
}
template <typename T, typename ... More> void printVars (const char* names, const T& print, const More & ... more) const {
const char * nextNames = strchr(names, ',');
for (const char * printChar = names; printChar != nextNames && *printChar != 0 ; printChar++){
if (*printChar == ' ') continue;
std::cout << *printChar;
}
std::cout << " = " << print;
if (nextNames != 0){
std::cout << ", ";
nextNames++;
}
printVars(nextNames, more...);
}
virtual void visitBlockNode(BlockNode *node)
{
bool topLevel = node->scope()->parent()->parent() == NULL;
if (!topLevel) {
out << "{" << endl;
}
printVars(node->scope());
for (uint32_t i = 0; i < node->nodes(); i++) {
AstNode *currentNode = node->nodeAt(i);
currentNode->visit(this);
if (currentNode->isLoadNode() || currentNode->isStoreNode() ||
currentNode->isReturnNode() || currentNode->isCallNode() ||
currentNode->isNativeCallNode() || currentNode->isPrintNode()) {
out << ";" << endl;
}
}
if (!topLevel) {
out << "}" << endl;
}
}
