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how to check for int and ID
Oct 2, 2016 at 12:34am
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 Oct 2, 2016 at 1:13am
Oct 2, 2016 at 1:13am
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 ) ) ;
}
Oct 2, 2016 at 1:45am
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 Oct 2, 2016 at 3:57am
Oct 2, 2016 at 10:23am
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
Oct 2, 2016 at 2:37pm
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.
Oct 2, 2016 at 3:32pm
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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