erik/JSON-java
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stringToValue

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This commit is contained in:
Douglas Crockford 2013-11-14 11:18:16 -08:00
parent 34f327e6d0
commit 4d86b05d3c
1 changed files with 14 additions and 27 deletions
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41
XML.java
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@ -31,7 +31,7 @@ import java.util.Iterator;
* This provides static methods to convert an XML text into a JSONObject,
* and to covert a JSONObject into an XML text.
* @author JSON.org
* @version 2012-10-26
* @version 2013-11-12
*/
public class XML {
@ -301,9 +301,6 @@ public class XML {
* @return A simple JSON value.
*/
public static Object stringToValue(String string) {
if ("".equals(string)) {
return string;
}
if ("true".equalsIgnoreCase(string)) {
return Boolean.TRUE;
}
@ -313,36 +310,26 @@ public class XML {
if ("null".equalsIgnoreCase(string)) {
return JSONObject.NULL;
}
if ("0".equals(string)) {
return new Integer(0);
}
// If it might be a number, try converting it. If that doesn't work,
// return the string.
// If it might be a number, try converting it, first as a Long, and then as a
// Double. If that doesn't work, return the string.
try {
char initial = string.charAt(0);
boolean negative = false;
if (initial == '-') {
initial = string.charAt(1);
negative = true;
}
if (initial == '0' && string.charAt(negative ? 2 : 1) == '0') {
return string;
}
if ((initial >= '0' && initial <= '9')) {
if (string.indexOf('.') >= 0) {
return Double.valueOf(string);
} else if (string.indexOf('e') < 0 && string.indexOf('E') < 0) {
Long myLong = new Long(string);
if (myLong.longValue() == myLong.intValue()) {
return new Integer(myLong.intValue());
} else {
return myLong;
}
if (initial == '-' || (initial >= '0' && initial <= '9')) {
Long value = new Long(string);
if (value.toString().equals(string)) {
return value;
}
}
} catch (Exception ignore) {
try {
Double value = new Double(string);
if (value.toString().equals(string)) {
return value;
}
} catch (Exception ignoreAlso) {
}
}
return string;
}