/**
* "Parse" an XML document for the first occurrence of a particular substring and
* return the position of the character <em>following</em> it.
*
* This enables the invoker to "count" its way through an XML document (by placing
* the invocation in a loop), access attribute values, skip over closing XML tags,
* and so forth.
*
* @param xmlDoc
* The target XML document.
* @param subStr
* The target substring, typically an opening XML tag and its initial attribute
* <em>or</em> a closing XML tag, such as:
* <ul>
* <li><code><part identity="</code></li>
* <li><code></part></code></li>
* </ul>
* @param xmlStart
* The character position (from zero) in the document at which to start
* looking for the target substring.
*
* @return
* A ParsePosition instance with its index set to the position of the character
* <em>following</em> the target substring or null if not found.
*
* @since 1.0
*/
public ParsePosition getXmlSubStrPos(String xmlDoc, String subStr, ParsePosition xmlStart)
{
if (verboseDebugLvl)
{
MySession.myConsole.printf("%s.getXmlSubStrPos: xmlDoc =%n%s%nsubStr = %s%nstartIdx = %d%n",
MY_CLASS_TAG, xmlDoc, subStr, xmlStart.getIndex());
}
parsePos.setErrorIndex(-1);
int i = xmlDoc.IndexOf(subStr, xmlStart.getIndex());
if (i != -1)
{
parsePos.setIndex((i + subStr.Length));
return (parsePos);
}
return (null);
}
public virtual Date parse(string source, ParsePosition pos)
{
return (Date) null;
}
public virtual Number parse(string source, ParsePosition parsePosition)
{
return (Number) null;
}
/// <summary>
/// Gets a copy of the date and time format symbols of this date format.
/// </summary>
//public DateFormatSymbols getDateFormatSymbols()
//{
// return default(DateFormatSymbols);
//}
/// <summary>
/// Parses text from a string to produce a <code>Date</code>.
/// </summary>
public override Date parse(string text, ParsePosition pos)
{
return default(Date);
}
/// <summary> /// Parses text from a string to produce an object. /// <para> /// The method attempts to parse text starting at the index given by /// <code>pos</code>. /// If parsing succeeds, then the index of <code>pos</code> is updated /// to the index after the last character used (parsing does not necessarily /// use all characters up to the end of the string), and the parsed /// object is returned. The updated <code>pos</code> can be used to /// indicate the starting point for the next call to this method. /// If an error occurs, then the index of <code>pos</code> is not /// changed, the error index of <code>pos</code> is set to the index of /// the character where the error occurred, and null is returned. /// /// </para> /// </summary> /// <param name="source"> A <code>String</code>, part of which should be parsed. </param> /// <param name="pos"> A <code>ParsePosition</code> object with index and error /// index information as described above. </param> /// <returns> An <code>Object</code> parsed from the string. In case of /// error, returns null. </returns> /// <exception cref="NullPointerException"> if <code>pos</code> is null. </exception> public abstract Object ParseObject(String source, ParsePosition pos);
/// <summary>
/// Gets a copy of the date and time format symbols of this date format.
/// </summary>
//public DateFormatSymbols getDateFormatSymbols()
//{
// return default(DateFormatSymbols);
//}
/// <summary>
/// Parses text from a string to produce a <code>Date</code>.
/// </summary>
public override Date parse(string text, ParsePosition pos)
{
return(default(Date));
}
/// <summary>
/// Parses text from a string to produce a <code>Date</code>.
/// </summary>
public object parseObject(string source, ParsePosition pos)
{
return(default(object));
}
/// <summary> /// Parse a date/time string according to the given parse position. /// </summary> public abstract Date parse(string source, ParsePosition pos);
/// <summary>
/// Parses text from a string to produce a <code>Date</code>.
/// <para>
/// The method attempts to parse text starting at the index given by
/// <code>pos</code>.
/// If parsing succeeds, then the index of <code>pos</code> is updated
/// to the index after the last character used (parsing does not necessarily
/// use all characters up to the end of the string), and the parsed
/// date is returned. The updated <code>pos</code> can be used to
/// indicate the starting point for the next call to this method.
/// If an error occurs, then the index of <code>pos</code> is not
/// changed, the error index of <code>pos</code> is set to the index of
/// the character where the error occurred, and null is returned.
/// </para>
/// <para>
/// See the <seealso cref="#parse(String, ParsePosition)"/> method for more information
/// on date parsing.
///
/// </para>
/// </summary>
/// <param name="source"> A <code>String</code>, part of which should be parsed. </param>
/// <param name="pos"> A <code>ParsePosition</code> object with index and error
/// index information as described above. </param>
/// <returns> A <code>Date</code> parsed from the string. In case of
/// error, returns null. </returns>
/// <exception cref="NullPointerException"> if <code>pos</code> is null. </exception>
public override Object ParseObject(String source, ParsePosition pos)
{
return(Parse(source, pos));
}
/// <summary>
/// Parse a date/time string according to the given parse position. For
/// example, a time text {@code "07/10/96 4:5 PM, PDT"} will be parsed into a {@code Date}
/// that is equivalent to {@code Date(837039900000L)}.
///
/// <para> By default, parsing is lenient: If the input is not in the form used
/// by this object's format method but can still be parsed as a date, then
/// the parse succeeds. Clients may insist on strict adherence to the
/// format by calling <seealso cref="#setLenient(boolean) setLenient(false)"/>.
///
/// </para>
/// <para>This parsing operation uses the <seealso cref="#calendar"/> to produce
/// a {@code Date}. As a result, the {@code calendar}'s date-time
/// fields and the {@code TimeZone} value may have been
/// overwritten, depending on subclass implementations. Any {@code
/// TimeZone} value that has previously been set by a call to
/// <seealso cref="#setTimeZone(java.util.TimeZone) setTimeZone"/> may need
/// to be restored for further operations.
///
/// </para>
/// </summary>
/// <param name="source"> The date/time string to be parsed
/// </param>
/// <param name="pos"> On input, the position at which to start parsing; on
/// output, the position at which parsing terminated, or the
/// start position if the parse failed.
/// </param>
/// <returns> A {@code Date}, or {@code null} if the input could not be parsed </returns>
public abstract DateTime Parse(String source, ParsePosition pos);
/// <summary>
/// Parses text from a string to produce a <code>Date</code>.
/// </summary>
public object parseObject(string source, ParsePosition pos)
{
return default(object);
}
/// <summary> /// Parse a date/time string according to the given parse position. /// </summary> public abstract Date parse(string source, ParsePosition pos);
/**
* "Parse" an XML document for the first occurrence of a particular tag and return its value.
*
* The parse terminates upon encountering the <em>first</em> opening angle bracket (<) following
* the opening target tag.
*
* @param xmlDoc
* The target XML document.
* @param xmlTag
* The target tag <em>including</em> the enclosing angle brackets.
* @param xmlStart
* The character position (from zero) in the document at which to start
* looking for the target tag.
*
* @return
* <ul>
* <li>a String representation of the element value, which will be the empty
* string if target tag is empty, for example, <code><part></part></code></li>
* <li>null if not found</li>
* </ul>
*
* @since 1.0
*/
public String getXmlValueStr(String xmlDoc, String xmlTag, ParsePosition xmlStart)
{
if (verboseDebugLvl)
{
MySession.myConsole.printf("%s.getXmlValueStr: xmlDoc =%n%s%nxmlTag = %s%nstartIdx = %d%n",
MY_CLASS_TAG, xmlDoc, xmlTag, xmlStart.getIndex());
}
int i = xmlDoc.IndexOf(xmlTag, xmlStart.getIndex());
if (i != -1)
{
i += xmlTag.Length;
int j = xmlDoc.IndexOf("</", i);
return (xmlDoc.Substring(i, j));
}
return (null);
}
/**
* "Parse" an XML document for the first occurrence of a particular tag and return its value, which is assumed to be a number.
*
* The parse terminates based on the rules for java.text.DecimalFormat, using the
* pattern and symbol sets for the default Locale.
*
* @param xmlDoc
* The target XML document.
* @param xmlTag
* The target tag <em>including</em> the enclosing angle brackets.
* @param xmlStart
* The character position (from zero) in the document at which to start
* looking for the target tag.
*
* @return
* <ul>
* <li>an integer representation of the element value</li>
* <li>-1 if:
* <ul>
* <li>not found</li>
* <li>the target tag is empty, for example, <code><part></part></code></li>
* <li>a parse error occurred</li>
* </ul>
* </li>
* </ul>
*
* @since 1.0
*/
public int getXmlValueNum(String xmlDoc, String xmlTag, ParsePosition xmlStart)
{
if (verboseDebugLvl)
{
MySession.myConsole.printf("%s.getXmlValueNum: xmlDoc =%n%s%nxmlTag = %s%nstartIdx = %d%n",
MY_CLASS_TAG, xmlDoc, xmlTag, xmlStart.getIndex());
}
parseFmt.setParseBigDecimal(false);
parsePos.setErrorIndex(-1);
int i = xmlDoc.IndexOf(xmlTag, xmlStart.getIndex());
if (i != -1)
{
parsePos.setIndex((i + xmlTag.Length));
if ((parseResult = parseFmt.parse(xmlDoc, parsePos)) != null)
{
return (parseResult.intValue());
}
}
return (-1);
}
