/**
* Get the value of a node as a string.
*
* @param n Node to be converted to a string. May be null.
* @return value of n as a string, or an empty string if n is null.
*/
public String toString(org.w3c.dom.Node n) {
// %REVIEW% You can't get much uglier than this...
int nodeHandle = getDTMHandleFromNode(n);
DTM dtm = getDTM(nodeHandle);
XMLString strVal = dtm.getStringValue(nodeHandle);
return strVal.toString();
}
/**
* Compares this string to the specified object. The result is <code>true</code> if and only if
* the argument is not <code>null</code> and is a <code>String</code> object that represents the
* same sequence of characters as this object.
*
* @param obj2 the object to compare this <code>String</code> against.
* @return <code>true</code> if the <code>String </code>are equal; <code>false</code> otherwise.
* @see java.lang.String#compareTo(java.lang.String)
* @see java.lang.String#equalsIgnoreCase(java.lang.String)
*/
public boolean equals(XMLString obj2) {
if (obj2 != null) {
if (!obj2.hasString()) {
return obj2.equals(str());
} else {
return str().equals(obj2.toString());
}
}
return false;
}
/**
* Convert a string to a double -- Allowed input is in fixed notation ddd.fff.
*
* @return A double value representation of the string, or return Double.NaN if the string can not
* be converted.
*/
public double toDouble() {
/* XMLCharacterRecognizer.isWhiteSpace(char c) methods treats the following
* characters as white space characters.
* ht - horizontal tab, nl - newline , cr - carriage return and sp - space
* trim() methods by default also takes care of these white space characters
* So trim() method is used to remove leading and trailing white spaces.
*/
XMLString s = trim();
double result = Double.NaN;
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
if (c != '-' && c != '.' && (c < 0X30 || c > 0x39)) {
// The character is not a '-' or a '.' or a digit
// then return NaN because something is wrong.
return result;
}
}
try {
result = Double.parseDouble(s.toString());
} catch (NumberFormatException e) {
}
return result;
}
/**
* Returns the index within this string of the first occurrence of the specified substring. The
* integer returned is the smallest value <i>k</i> such that:
*
* <blockquote>
*
* <pre>
* this.startsWith(str, <i>k</i>)
* </pre>
*
* </blockquote>
*
* is <code>true</code>.
*
* @param str any string.
* @return if the string argument occurs as a substring within this object, then the index of the
* first character of the first such substring is returned; if it does not occur as a
* substring, <code>-1</code> is returned.
* @exception java.lang.NullPointerException if <code>str</code> is <code>null</code>.
*/
public int indexOf(XMLString str) {
return str().indexOf(str.toString());
}
