public static float _parseFloat(CharSequence _val) {
String s = WhiteSpaceProcessor.trim(_val).toString();
/* Incompatibilities of XML Schema's float "xfloat" and Java's float "jfloat"
* jfloat.valueOf ignores leading and trailing whitespaces,
whereas this is not allowed in xfloat.
* jfloat.valueOf allows "float type suffix" (f, F) to be
appended after float literal (e.g., 1.52e-2f), whereare
this is not the case of xfloat.
gray zone
---------
* jfloat allows ".523". And there is no clear statement that mentions
this case in xfloat. Although probably this is allowed.
*
*/
if (s.equals("NaN")) return Float.NaN;
if (s.equals("INF")) return Float.POSITIVE_INFINITY;
if (s.equals("-INF")) return Float.NEGATIVE_INFINITY;
if (s.length() == 0
|| !isDigitOrPeriodOrSign(s.charAt(0))
|| !isDigitOrPeriodOrSign(s.charAt(s.length() - 1))) throw new NumberFormatException();
// these screening process is necessary due to the wobble of Float.valueOf method
return Float.parseFloat(s);
}
/** @return null if fails to convert. */
public static QName _parseQName(CharSequence text, NamespaceContext nsc) {
int length = text.length();
// trim whitespace
int start = 0;
while (start < length && WhiteSpaceProcessor.isWhiteSpace(text.charAt(start))) start++;
int end = length;
while (end > start && WhiteSpaceProcessor.isWhiteSpace(text.charAt(end - 1))) end--;
if (end == start) throw new IllegalArgumentException("input is empty");
String uri;
String localPart;
String prefix;
// search ':'
int idx = start + 1; // no point in searching the first char. that's not valid.
while (idx < end && text.charAt(idx) != ':') idx++;
if (idx == end) {
uri = nsc.getNamespaceURI("");
localPart = text.subSequence(start, end).toString();
prefix = "";
} else {
// Prefix exists, check everything
prefix = text.subSequence(start, idx).toString();
localPart = text.subSequence(idx + 1, end).toString();
uri = nsc.getNamespaceURI(prefix);
// uri can never be null according to javadoc,
// but some users reported that there are implementations that return null.
if (uri == null || uri.length() == 0) // crap. the NamespaceContext interface is broken.
// error: unbound prefix
throw new IllegalArgumentException("prefix " + prefix + " is not bound to a namespace");
}
return new QName(uri, localPart, prefix);
}
public static boolean _parseBoolean(CharSequence literal) {
int i = 0;
int len = literal.length();
char ch;
do {
ch = literal.charAt(i++);
} while (WhiteSpaceProcessor.isWhiteSpace(ch) && i < len);
// if we are strict about errors, check i==len. and report an error
if (ch == 't' || ch == '1') return true;
if (ch == 'f' || ch == '0') return false;
return false;
}
public static double _parseDouble(CharSequence _val) {
String val = WhiteSpaceProcessor.trim(_val).toString();
if (val.equals("NaN")) return Double.NaN;
if (val.equals("INF")) return Double.POSITIVE_INFINITY;
if (val.equals("-INF")) return Double.NEGATIVE_INFINITY;
if (val.length() == 0
|| !isDigitOrPeriodOrSign(val.charAt(0))
|| !isDigitOrPeriodOrSign(val.charAt(val.length() - 1)))
throw new NumberFormatException(val);
// these screening process is necessary due to the wobble of Float.valueOf method
return Double.parseDouble(val);
}
public static BigDecimal _parseDecimal(CharSequence content) {
content = WhiteSpaceProcessor.trim(content);
return new BigDecimal(content.toString());
// from purely XML Schema perspective,
// this implementation has a problem, since
// in xs:decimal "1.0" and "1" is equal whereas the above
// code will return different values for those two forms.
//
// the code was originally using com.sun.msv.datatype.xsd.NumberType.load,
// but a profiling showed that the process of normalizing "1.0" into "1"
// could take non-trivial time.
//
// also, from the user's point of view, one might be surprised if
// 1 (not 1.0) is returned from "1.000"
}
/**
* Faster but less robust String->int conversion.
*
* <p>Note that:
*
* <ol>
* <li>XML Schema allows '+', but {@link Integer#valueOf(String)} is not.
* <li>XML Schema allows leading and trailing (but not in-between) whitespaces.. {@link
* Integer#valueOf(String)} doesn't allow any.
* </ol>
*/
public static int _parseInt(CharSequence s) {
int len = s.length();
int sign = 1;
int r = 0;
for (int i = 0; i < len; i++) {
char ch = s.charAt(i);
if (WhiteSpaceProcessor.isWhiteSpace(ch)) {
// skip whitespace
} else if ('0' <= ch && ch <= '9') {
r = r * 10 + (ch - '0');
} else if (ch == '-') {
sign = -1;
} else if (ch == '+') {
// noop
} else throw new NumberFormatException("Not a number: " + s);
}
return r * sign;
}
public static BigInteger _parseInteger(CharSequence s) {
return new BigInteger(removeOptionalPlus(WhiteSpaceProcessor.trim(s)).toString());
}
public static GregorianCalendar _parseDateTime(CharSequence s) {
String val = WhiteSpaceProcessor.trim(s).toString();
return datatypeFactory.newXMLGregorianCalendar(val).toGregorianCalendar();
}
public static long _parseLong(CharSequence s) {
return Long.valueOf(removeOptionalPlus(WhiteSpaceProcessor.trim(s)).toString());
}
