void CompilationEng::compileStatements()
{
while(true)
{
getToken();
if(m_token == "}")
{
m_bPutback = true;
break;
}
else
{
if(m_bZeroStatements)
{
printNonterminal("statements");
numOfTab++;
}
m_bZeroStatements = false;
if(m_token == "let")
{
compileLet();
m_bZeroStatements =false;
}
else if(m_token == "if")
{
compileIf();
m_bZeroStatements=false;
}
else if(m_token == "while")
{
compileWhile();
m_bZeroStatements = false;
}
else if(m_token == "do")
{
compileDo();
m_bZeroStatements =false;
}
else if(m_token == "return")
{
compileReturn();
m_bZeroStatements=false;
}
else
{
m_ofs << m_token << endl;
break;
}
}
}
if(!m_bZeroStatements)
{
numOfTab--;
printNonterminal("statements",false); //end of statements
}
m_bZeroStatements = true;
}
void CompilationEngine::compileStatements()
{
/* statements: statement*
statement: letStatement | ifStatement | whileStatement | doStatement | returnStatement */
tagNonTerminal("statements");
while (jt.tokenType() == TokenType::kKEYWORD && isStatement(jt.getToken())) {
switch (jt.keyword()) {
case Keyword::kLET:
compileLet();
break;
case Keyword::kDO:
compileDo();
break;
case Keyword::kIF:
compileIf();
break;
case Keyword::kWHILE:
compileWhile();
break;
case Keyword::kRETURN:
compileReturn();
default:
break;
}
}
untagNonTerminal("statements");
}