how to check for int and ID
Hello.
I need help with sorting strings that i read from a file, the file contains strings like ("int" , "[" , "]", "x", "1")
i put them into array and now i need to sort them to 3 category arrays :
integers: "1" "2" ... "9"
IDs : "x" "read" "write" ......
keywords: "int" "fact" "void" " "while" " "return" .....
can someone show me some code that can sort the array.
thank you !
I need help with sorting strings that i read from a file, the file contains strings like ("int" , "[" , "]", "x", "1")
i put them into array and now i need to sort them to 3 category arrays :
integers: "1" "2" ... "9"
IDs : "x" "read" "write" ......
keywords: "int" "fact" "void" " "while" " "return" .....
can someone show me some code that can sort the array.
thank you !
Last edited on
i need to sort each string
void main ( void )
{ int x ;
x = read ( ) ;
if ( x > 0 ) write ( fact ( x ) ) ;
}
void main ( void )
{ int x ;
x = read ( ) ;
if ( x > 0 ) write ( fact ( x ) ) ;
}
Content of File :
"void main ( void )
{ int x ;
x = read ( ) ;
if ( x > 0 ) write ( fact ( x ) ) ;
} "
i need to sort them like :
KeyWord[] = void;
Keyword[] = main;
ID[] = x;
Integer[] = 0;
and so on. but i dont know how to make the program know which is int and which is ID
"void main ( void )
{ int x ;
x = read ( ) ;
if ( x > 0 ) write ( fact ( x ) ) ;
} "
i need to sort them like :
KeyWord[] = void;
Keyword[] = main;
ID[] = x;
Integer[] = 0;
and so on. but i dont know how to make the program know which is int and which is ID
Last edited on
Term "sort" refers usually to adjusting the order of items in a list.
You have three "buckets" and you want to toss each word into appropriate bucket.
You do need two predicates;
* one that returns true if the word is an integer
* one that returns true if the word is a keyword
You have three "buckets" and you want to toss each word into appropriate bucket.
FOR each word IF is an integer ELSE IF is a keyword ELSE |
You do need two predicates;
* one that returns true if the word is an integer
* one that returns true if the word is a keyword
True, i just don't know what to write in "If" statement to check for integers and for the others. tried to many ways and it's not working.
Lets take the keywords first. You must have a list of them. Then, if a word is in the list, then the word is a keyword.
For example: http://www.cplusplus.com/reference/set/set/count/
For numbers you could put the word into istringstream, attempt to read the number out and check whether that was all that the word had.
For example: http://www.cplusplus.com/reference/set/set/count/
For numbers you could put the word into istringstream, attempt to read the number out and check whether that was all that the word had.
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