本文整理汇总了Java中com.sun.org.apache.xml.internal.utils.XMLCharacterRecognizer类的典型用法代码示例。如果您正苦于以下问题：Java XMLCharacterRecognizer类的具体用法？Java XMLCharacterRecognizer怎么用？Java XMLCharacterRecognizer使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
XMLCharacterRecognizer类属于com.sun.org.apache.xml.internal.utils包，在下文中一共展示了XMLCharacterRecognizer类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: toDouble
import com.sun.org.apache.xml.internal.utils.XMLCharacterRecognizer; //导入依赖的package包/类
/**
* Convert a string to a double -- Allowed input is in fixed
* notation ddd.fff.
*
* %OPT% CHECK PERFORMANCE against generating a Java String and
* converting it to double. The advantage of running in native
* machine code -- perhaps even microcode, on some systems -- may
* more than make up for the cost of allocating and discarding the
* additional object. We need to benchmark this.
*
* %OPT% More importantly, we need to decide whether we _care_ about
* the performance of this operation. Does XString.toDouble constitute
* any measurable percentage of our typical runtime? I suspect not!
*
* @return A double value representation of the string, or return Double.NaN
* if the string can not be converted. */
public double toDouble()
{
if(m_length == 0)
return Double.NaN;
int i;
char c;
String valueString = fsb().getString(m_start,m_length);
// The following are permitted in the Double.valueOf, but not by the XPath spec:
// - a plus sign
// - The use of e or E to indicate exponents
// - trailing f, F, d, or D
// See function comments; not sure if this is slower than actually doing the
// conversion ourselves (as was before).
for (i=0;i<m_length;i++)
if (!XMLCharacterRecognizer.isWhiteSpace(valueString.charAt(i)))
break;
if (i == m_length) return Double.NaN;
if (valueString.charAt(i) == '-')
i++;
for (;i<m_length;i++) {
c = valueString.charAt(i);
if (c != '.' && (c < '0' || c > '9'))
break;
}
for (;i<m_length;i++)
if (!XMLCharacterRecognizer.isWhiteSpace(valueString.charAt(i)))
break;
if (i != m_length)
return Double.NaN;
try {
return Double.parseDouble(valueString);
} catch (NumberFormatException nfe) {
// This should catch double periods, empty strings.
return Double.NaN;
}
}
示例2: isSpace
import com.sun.org.apache.xml.internal.utils.XMLCharacterRecognizer; //导入依赖的package包/类
/**
* Returns whether the specified <var>ch</var> conforms to the XML 1.0 definition
* of whitespace. Refer to <A href="http://www.w3.org/TR/1998/REC-xml-19980210#NT-S">
* the definition of <CODE>S</CODE></A> for details.
* @param ch Character to check as XML whitespace.
* @return =true if <var>ch</var> is XML whitespace; otherwise =false.
*/
private static boolean isSpace(char ch)
{
return XMLCharacterRecognizer.isWhiteSpace(ch); // Take the easy way out for now.
}