void test_stringIsCharAtInSet_should_return_1_contain_in_set(void) {
Text *text = textNew("StoneSir");
String *string = stringNew(text);
TEST_ASSERT_EQUAL(1,stringIsCharAtInSet(string,2,"abcdefghijklmno"));
}
void test_stringIsCharAtInSet_should_return_0_not_found_in_set(void) {
Text *text = textNew("StoneSir");
String *string = stringNew(text);
string->start++;
string->length--;
TEST_ASSERT_EQUAL(0,stringIsCharAtInSet(string,0,"abcdefghijklmno"));
}
/**
* Return the one token from the String. The String is updated.
* If the string is empty, NULL is return.
*
* Input:
* str is the String object
*
* Possible returned token:
* Number, Operator, and Identifier tokens
*/
Token *getToken(String *str) {
//1 trim left
//2 check first character
// a -if a number then extract the number string
// -convert into integer
// -create number token
// b -if alphabetSet then extract the identifier
// -create identifier token
// c -if operator set then extract operator symbol
// -create operator token
char charReturn[3];
Token *tokenReturn = NULL;
String *strReturn = NULL;
Number *number = NULL;
Identifier *identifier = NULL;
Operator *operator = NULL;
stringTrimLeft(str);
if(stringLength(str) == 0)
return NULL;
//Number
if(stringIsCharAtInSet(str,0,numberSet)){
strReturn = stringRemoveWordContaining(str,numberSet);
if(stringIsCharAtInSet(str,0,alphabetSet)){
Throw(ERR_NUMBER_NOT_WELL_FORMED);
}
else{
number = numberNew(stringToInteger(strReturn));
tokenReturn = (Token *)number;
stringDel(strReturn);
}
}
//Identifier
else if(stringIsCharAtInSet(str,0,alphabetSet)){
strReturn = stringRemoveWordContaining(str,alphaNumericSet);
identifier = identifierNew(stringSubstringInText(strReturn,0,strReturn->length));
tokenReturn = (Token *)identifier;
stringDel(strReturn);
}
//Operator
else if(stringIsCharAtInSet(str,0,operatorSet)){
charReturn[0] = (char )stringRemoveChar(str);
charReturn[1] = 0;
if(stringCharAt(str,0) == charReturn[0] && stringLength(str) != 0){
if(charReturn[0] == '&'){
charReturn[0] = '&';
charReturn[1] = '&';
charReturn[2] = 0;
str->start++;
str->length--;
}
else if(charReturn[0] == '|'){
charReturn[0] = '|';
charReturn[1] = '|';
charReturn[2] = 0;
str->start++;
str->length--;
}
}
operator = operatorNewBySymbol(charReturn);
tokenReturn = (Token *)operator;
}
else
Throw(ERR_ILLEGAL_ARGUMENT);
return tokenReturn;
}
