Remove trailing whitespace and clean up comments

12/String.jack

@@ -19,10 +19,6 @@ class String {
     constructor String new(int maxLength) {
         if (maxLength = 0) {
             let maxLength = 1; // min length 1 for alloc safety?
-            // Actually spec says allocation of 0 size might happen. 
-            // My Array.new -> Memory.alloc handles 0 size by returning a 1 word block (header-1?? No).
-            // Let's alloc 0 if needed.
-            // If maxLength is 0, we can't really store anything.
         }
         if (maxLength > 0) {
             let buffer = Array.new(maxLength);
@@ -74,23 +70,23 @@ class String {
         return;
     }
 
-    /** Returns the integer value of this string, 
+    /** Returns the integer value of this string,
      *  until a non-digit character is detected. */
     method int intValue() {
         var int val, i, d;
         var boolean neg;
-        
+
         let val = 0;
         let i = 0;
         let neg = false;
-        
+
         if (length > 0) {
             if (buffer[0] = 45) { // '-'
                 let neg = true;
                 let i = 1;
             }
         }
-        
+
         while (i < length) {
             let d = buffer[i] - 48; // '0' is 48
             if ((d > -1) & (d < 10)) {
@@ -100,7 +96,7 @@ class String {
                 let i = length; // break
             }
         }
-        
+
         if (neg) {
             return -val;
         }
@@ -110,24 +106,24 @@ class String {
     /** Sets this string to hold a representation of the given value. */
     method void setInt(int val) {
         let length = 0; // Clear string
-        
+
         if (val < 0) {
             let val = -val;
             do appendChar(45); // '-'
         }
-        
+
         do int2String(val);
         return;
     }
-    
+
     // Helper for recursive int printing
     method void int2String(int val) {
         var int lastDigit;
         var int c;
-        
+
         let lastDigit = val - ((val / 10) * 10); // val % 10
         let c = lastDigit + 48;
-        
+
         if (val < 10) {
             do appendChar(c);
         } else {