void evaluateif(String name, doVector& vec, tree& symbolTable, tree& localVar, funcS& funcTable){
for(int i = 0; i < vec.len(); i+=1){
if(vec.op[i].c == output){
numHandler(evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
}else if(vec.op[i].c == text){
textHandler(vec.op[i].text);
}else if(vec.op[i].c == set){
if(localVar.isMember(vec.op[i].text)){
localVar.insert(vec.op[i].text,evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
}else if(symbolTable.isMember(vec.op[i].text)){
symbolTable.insert(vec.op[i].text,evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
}else{
localVar.insert(vec.op[i].text,evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
printf("variable %s not declared\n", vec.op[i].text.c_str());
}
}else if(vec.op[i].c == ifs){
if(evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable)){
evaluateif(name,*(vec.op[i].block), symbolTable, localVar, funcTable);
if(function_return){
return;
}
}else{
evaluateElse(*(vec.op[i].block),symbolTable, localVar, funcTable);
if(function_return){
return;
}
}
}else if(vec.op[i].c == var){
if(symbolTable.isMember(vec.op[i].text)){
printf("variable %s incorrectly re-initialized\n", vec.op[i].text.c_str());
}
symbolTable.insert(vec.op[i].text,evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
}else if(vec.op[i].c == dos){
while(evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable)){
evaluateif(name, *(vec.op[i].block), symbolTable, localVar, funcTable);
if(function_return){
return;
}
}
}else if(vec.op[i].c == call){
evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable);
if(function_return){return;}
}else if(vec.op[i].c == returns){
funcTable.addVal(name, evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
function_return = true;
return;
}else if(vec.op[i].c == func){
if(funcTable.isMember(vec.op[i].text)){
printf("WARNING: function %s redefined \n", vec.op[i].text.c_str());
}
funcTable.addFunc(tempFunc, vec.op[i].text);
}
function_return = false;
}
}
/*
** 名字：Scanner::AddHandlers()
** 说明：为自动机添加回调函数
**
*/
int Scanner::AddHandlers()
{
LPVOID param = NULL;
HandlerFunctorType* functor;
auto InsertCB = [&]() { functor = new HandlerFunctorType; m_cbList.push_back( functor );};
// 处理其他情况的处理函数
InsertCB();
m_pFSM->AddOtherHandler( &( *functor = [=]()->int { return otherHandler( param ); }) );
// 读取当前字符的处理函数
InsertCB();
m_pFSM->AddLookAheadCB( &( *functor = [=]()->int { return m_pFileReader->GetChar(); }) );
// 遇到错误可被调用
InsertCB();
m_pFSM->AddErrorCB( &( *functor = [=]()->int { return errorHandler( param ); }) );
// 添加遇到“;”注释会调用的回调函数
InsertCB();
m_pFSM->AddHandler( ';', &( *functor = [=]()->int { return commentHandler( param ); }) );
// 添加遇到“'”注释会调用的回调函数
InsertCB();
m_pFSM->AddHandler( '\'', &( *functor = [=]()->int { return strHandler( param ); }) );
// 添加遇到数字会调用的回调函数
InsertCB();
*functor = [=]()->int { return numHandler( param ); };
for ( char c = '0'; c <= '9'; c++ )
{
m_pFSM->AddHandler( c, functor );
}
// 添加遇到字母会调用的回调函数
InsertCB();
*functor = [=]()->int { return IDHandler( param ); };
for ( char c = 'A'; c <= 'z'; c++ )
{
m_pFSM->AddHandler( c, functor );
}
// 添加遇到空白会调用的回调函数
InsertCB();
*functor = [=]()->int { return whitespaceHandler( param ); };
m_pFSM->AddHandler( '\n', functor );
m_pFSM->AddHandler( '\t', functor );
m_pFSM->AddHandler( '\r', functor );
m_pFSM->AddHandler( ' ', functor );
return 0;
}
void evaluateFunc(String name, tree& symbolTable, funcS& funcTable){
if(!(funcTable.getBlock(name))){
return; // if a function with no body
}
doVector vec = *(funcTable.getBlock(name));
tree localVar = *(funcTable.getParams(name));
for(int i = 0; i < vec.len(); i+=1){
if(vec.op[i].c == output){
numHandler(evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
}else if(vec.op[i].c == text){
textHandler(vec.op[i].text);
}else if(vec.op[i].c == set){
if(localVar.isMember(vec.op[i].text)){// if the variable is a local variable
localVar.insert(vec.op[i].text,evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
}else if(symbolTable.isMember(vec.op[i].text)){// else if it is local
symbolTable.insert(vec.op[i].text,evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
}else{
printf("variable %s not declared\n", vec.op[i].text.c_str());
}
}else if(vec.op[i].c == ifs){
if(evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable)){
evaluateif(name, *(vec.op[i].block), symbolTable, localVar, funcTable);
if(function_return){return;}
}
}else if(vec.op[i].c == returns){
funcTable.addVal(name, evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
function_return = true;
return;
}else if(vec.op[i].c == dos){
while(evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable)){
evaluateif(name, *(vec.op[i].block), symbolTable, localVar, funcTable);
if(function_return){return;}
}
}else if(vec.op[i].c == var){
if(localVar.isMember(vec.op[i].text)){
printf("variable %s incorrectly re-initialized\n", vec.op[i].text.c_str());
}
localVar.insert(vec.op[i].text,evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable));
}else if(vec.op[i].c == call){
evaluateOpFunc(vec.op[i].operate, symbolTable, localVar, funcTable);
if(function_return){return;}
}else if(vec.op[i].c == func){
if(funcTable.isMember(vec.op[i].text)){
printf("WARNING: function %s redefined \n", vec.op[i].text.c_str());
}
funcTable.addFunc(tempFunc, vec.op[i].text);
}
}
function_return = false;
funcTable.addVal(name, 0);// if there is no return statment it returns 0
}
