Token Scanner::moveP(){
char c;
//Skipping Whitespaces
while (std::cin.peek() == ' ' || std::cin.peek()=='\t')
c = getchar();
while ((c = getchar()) != -1)
{
switch (c)
{
case '+':
return T_PLUS;
case '-':
return T_MINUS;
case '*':
return (std::cin.peek() == '*' && getchar()) ? T_EXP : T_MULTIPLY;
case '/':
return T_DIVIDE;
case '%':
return T_MODULO;
case '(':
return T_OPENPAREN;
case ')':
return T_CLOSEPAREN;
case ';':
return T_SEMICOLON;
case '\n':
line++;
return T_NEWLN;
case EOF:
return T_EOF;
default:
if (isdigit(c))
{
std::string number(1, c);
while (isdigit(std::cin.peek()))
{
number += getchar();
}
try{
value = std::stoi(number);
}
catch (std::exception e){
std::cerr << "Semantic error: number " << number << " out of bounds at line " << line << std::endl;
exit(1);
}
return T_NUMBER;
}
else
scanError(line, c);
}
}
return T_EOF;
}
void Scanner::eatToken(token toConsume) {
// This function consumes the next token.
token foundToken = nextToken();
if( foundToken == toConsume)
switch(toConsume) {
case T_MINUS:
case T_PLUS:
case T_MULTIPLY:
case T_DIVIDE:
case T_SEMICOLON:
case T_M:
case T_EQUALS:
case T_OPENPAREN:
case T_CLOSEPAREN:
case T_OPENBRACKET:
case T_CLOSEBRACKET:
std::cin.get();
break;
case T_POWER:
std::cin.get();
std::cin.get();
break;
case T_NUMBER:
int temp;
number = (std::cin.get() - 48);
while ( isdigit(std::cin.peek()) ) {
temp = std::cin.get();
temp = temp - 48;
number = ((number * 10) + temp);
}
break;
case T_PRINT:
std::string print = "print";
std::string cap_print = "PRINT";
char p;
for(int i = 0; i < 5; i++) {
p = std::cin.get();
if ((print[i] == p) || (cap_print[i] == p)) continue;
else
scanError(lineNumber(), p);
}
break;
}
else {
mismatchError(lineNumber(), toConsume, foundToken);
}
}
void Tst_qofonoTest::testScan()
{
QOfonoManager manager;
QOfonoModem modem;
modem.setModemPath(manager.modems()[0]);
QOfonoNetworkRegistration netreg;
netreg.setModemPath(manager.modems()[0]);
QSignalSpy spy_scanFinished(&netreg, SIGNAL(scanFinished()));
QSignalSpy spy_scanError(&netreg, SIGNAL(scanError(QString)));
netreg.scan();
::waitForSignal(&netreg, SIGNAL(scanFinished()), 1000 * 500);
QCOMPARE(spy_scanError.count(),0);
QCOMPARE(spy_scanFinished.count(),1);
}
token Scanner::nextToken() {
// This is a placeholder token, you will need to replace this code
// with code to return the correct next token.
char peek;
while ( isspace(peek = std::cin.peek()) ) { //check to see if nextToken is whitespace
if(peek == '\n') line_Number++;
std::cin.get(); //if so, consume
}
char c;
c = std::cin.peek();
switch (c) {
case '-':
return T_MINUS;
case '+':
return T_PLUS;
case '*':
std::cin.get();
char temp;
temp = std::cin.peek();
std::cin.putback ('*');
if(temp == '*') return T_POWER;
else
return T_MULTIPLY;
case '/':
return T_DIVIDE;
case ';':
return T_SEMICOLON;
case 'M':
case 'm':
return T_M;
case '[':
return T_OPENBRACKET;
case ']':
return T_CLOSEBRACKET;
case '(':
return T_OPENPAREN;
case ')':
return T_CLOSEPAREN;
case '=':
return T_EQUALS;
case 'P':
case 'p':
return T_PRINT;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
return T_NUMBER;
case EOF:
return T_EOF;
default:
scanError(lineNumber(),c);
break;
}
}
