#653 - optLong vs getLong inconsistencies

For exponential decimal conversion, number is not touched.
Leading zeros removed from numeric number strings before converting to number.

src/main/java/org/json/JSONObject.java

@@ -2379,12 +2379,13 @@ public class JSONObject {
      * returns for this function are BigDecimal, Double, BigInteger, Long, and Integer.
      * When a Double is returned, it should always be a valid Double and not NaN or +-infinity.
      *
-     * @param val value to convert
+     * @param input value to convert
      * @return Number representation of the value.
      * @throws NumberFormatException thrown if the value is not a valid number. A public
      *      caller should catch this and wrap it in a {@link JSONException} if applicable.
      */
-    protected static Number stringToNumber(final String val) throws NumberFormatException {
+    protected static Number stringToNumber(final String input) throws NumberFormatException {
+        String val = input;
         char initial = val.charAt(0);
         if ((initial >= '0' && initial <= '9') || initial == '-') {
             // decimal representation
@@ -2411,6 +2412,8 @@ public class JSONObject {
                     }
                 }
             }
+            val = removeLeadingZerosOfNumber(input);
+            initial = val.charAt(0);
             // block items like 00 01 etc. Java number parsers treat these as Octal.
             if(initial == '0' && val.length() > 1) {
                 char at1 = val.charAt(1);
@@ -2886,4 +2889,33 @@ public class JSONObject {
             "JavaBean object contains recursively defined member variable of key " + quote(key)
         );
     }
+
+    /**
+     * For a prospective number, remove the leading zeros
+     * @param value prospective number
+     * @return number without leading zeros
+     */
+    private static String removeLeadingZerosOfNumber(String value){
+        char[] chars = value.toCharArray();
+        int leftMostUnsignedIndex = 0;
+        if (chars[0] == '-'){
+            leftMostUnsignedIndex = 1;
+        }
+        int firstNonZeroCharIndex = -1;
+        for (int i=leftMostUnsignedIndex;i<value.length();i++){
+            if (chars[i] != '0'){
+                firstNonZeroCharIndex = i;
+                break;
+            }
+        }
+        if (firstNonZeroCharIndex == -1){
+            return value;
+        }
+        StringBuilder result = new StringBuilder();
+        if (leftMostUnsignedIndex == 1){
+            result.append('-');
+        }
+        result.append(value.substring(firstNonZeroCharIndex));
+        return result.toString();
+    }
 }

src/test/java/org/json/junit/JSONObjectNumberTest.java

@@ -23,7 +23,10 @@ public class JSONObjectNumberTest {
     @Parameters(name = "{index}: {0}")
     public static Collection<Object[]> data() {
         return Arrays.asList(new Object[][]{
-            {"{value:50}", 1},
+            {"{value:0050}", 1},
+            {"{value:0050.0000}", 1},
+            {"{value:-0050}", -1},
+            {"{value:-0050.0000}", -1},
             {"{value:50.0}", 1},
             {"{value:5e1}", 1},
             {"{value:5E1}", 1},
@@ -32,6 +35,7 @@ public class JSONObjectNumberTest {
             {"{value:-50}", -1},
             {"{value:-50.0}", -1},
             {"{value:-5e1}", -1},
+            {"{value:-0005e1}", -1},
             {"{value:-5E1}", -1},
             {"{value:-5e1}", -1},
             {"{value:'-50'}", -1}

src/test/java/org/json/junit/JSONObjectTest.java

@@ -1063,12 +1063,16 @@ public class JSONObjectTest {
                 "\"tooManyZeros\":00,"+
                 "\"negativeInfinite\":-Infinity,"+
                 "\"negativeNaN\":-NaN,"+
+                "\"negativeNaNWithLeadingZeros\":-00NaN,"+
                 "\"negativeFraction\":-.01,"+
                 "\"tooManyZerosFraction\":00.001,"+
                 "\"negativeHexFloat\":-0x1.fffp1,"+
                 "\"hexFloat\":0x1.0P-1074,"+
                 "\"floatIdentifier\":0.1f,"+
-                "\"doubleIdentifier\":0.1d"+
+                "\"doubleIdentifier\":0.1d,"+
+                "\"integerWithLeadingZeros\":000900,"+
+                "\"integerWithAllZeros\":00000,"+
+                "\"compositeWithLeadingZeros\":00800.90d"+
             "}";
         JSONObject jsonObject = new JSONObject(str);
         Object obj;
@@ -1085,10 +1089,17 @@ public class JSONObjectTest {
         obj = jsonObject.get("negativeNaN");
         assertTrue( "negativeNaN currently evaluates to string",
                 obj.equals("-NaN"));
+        obj = jsonObject.get("negativeNaNWithLeadingZeros");
+        assertTrue( "negativeNaNWithLeadingZeros currently evaluates to string",
+                obj.equals("-00NaN"));
         assertTrue( "negativeFraction currently evaluates to double -0.01",
                 jsonObject.get( "negativeFraction" ).equals(BigDecimal.valueOf(-0.01)));
         assertTrue( "tooManyZerosFraction currently evaluates to double 0.001",
                 jsonObject.get( "tooManyZerosFraction" ).equals(BigDecimal.valueOf(0.001)));
+        assertTrue( "tooManyZerosFraction currently evaluates to double 0.001",
+                jsonObject.getLong( "tooManyZerosFraction" )==0);
+        assertTrue( "tooManyZerosFraction currently evaluates to double 0.001",
+                jsonObject.optLong( "tooManyZerosFraction" )==0);
         assertTrue( "negativeHexFloat currently evaluates to double -3.99951171875",
                 jsonObject.get( "negativeHexFloat" ).equals(Double.valueOf(-3.99951171875)));
         assertTrue("hexFloat currently evaluates to double 4.9E-324",
@@ -1097,6 +1108,28 @@ public class JSONObjectTest {
                 jsonObject.get("floatIdentifier").equals(Double.valueOf(0.1)));
         assertTrue("doubleIdentifier currently evaluates to double 0.1",
                 jsonObject.get("doubleIdentifier").equals(Double.valueOf(0.1)));
+        assertTrue("Integer does not evaluate to 900",
+                jsonObject.get("integerWithLeadingZeros").equals(900));
+        assertTrue("Integer does not evaluate to 900",
+                jsonObject.getInt("integerWithLeadingZeros")==900);
+        assertTrue("Integer does not evaluate to 900",
+                jsonObject.optInt("integerWithLeadingZeros")==900);
+        assertTrue("Integer does not evaluate to 0",
+                jsonObject.get("integerWithAllZeros").equals("00000"));
+        assertTrue("Integer does not evaluate to 0",
+                jsonObject.getInt("integerWithAllZeros")==0);
+        assertTrue("Integer does not evaluate to 0",
+                jsonObject.optInt("integerWithAllZeros")==0);
+        assertTrue("Double does not evaluate to 800.90",
+                jsonObject.get("compositeWithLeadingZeros").equals(800.90));
+        assertTrue("Double does not evaluate to 800.90",
+                jsonObject.getDouble("compositeWithLeadingZeros")==800.9d);
+        assertTrue("Integer does not evaluate to 800",
+                jsonObject.optInt("compositeWithLeadingZeros")==800);
+        assertTrue("Long does not evaluate to 800.90",
+                jsonObject.getLong("compositeWithLeadingZeros")==800);
+        assertTrue("Long does not evaluate to 800.90",
+                jsonObject.optLong("compositeWithLeadingZeros")==800);
         Util.checkJSONObjectMaps(jsonObject);
     }