Comparing a char to " ' "

So my code takes a user input such as

setq x '(yellow)

The first part removes 'setq ', and initializes the program to find the variable name (which will be x).

What i am working on now is to find the variable name so in this case 'x'.

Code:

---

public String var (String s){
            if (s.length () == 0){
                    return "";
            }else if (s.charAt(0) == ' '){
                    return "";
            }else if (s.charAt (0) != ' '){
                    return s.charAt (0) + var (s.substring (1,s.length ()));                   
            }else                   
                    return "";           
    }

---

So this returns the variables name so far.

Recall the input
setq x '(yellow)

My program removes setq , now it is
x '(yellow)
Now i want it to remove x ' and keep (yellow).

How can i do this using the same recursive technique as above?

Confused since im not sure how i can compare a character to a ' when
the actual compare statement in java uses 'a' to indicate when i want to compare to an a.

Thanks

Chuklol

Quote:

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how i can compare a character to a '

---

Have you tried using the escape character: \ when you define the character literal?

What is the (yellow)?

thats just the next part of my code, it defines the objects in nodes in a linked list.

for now i have changed it to when it finds a |, so if i put \' it should work?

What have you tried? Try escaping ', or look up the ascii number and use that instead.

The problem with using an integer value for a character is that it reduces readability. Not everyone knows the ASCII codes.

That worked, thanks Norm, for anyone else with similar problems

Code:

---

public String var (String s){
            if (s.length () == 0){
                    return "";
            }else if (s.charAt(0) == ' '){
                    return "";
            }else if (s.charAt (0) == '\''){
                    return "";
            }else if (s.charAt (0) != ' '){
                    return s.charAt (0) + var (s.substring (1,s.length ()));                   
            }else                 
                    return "";           
    }

---