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Java Source Code / Java Documentation » Web Server » jo » com.tagtraum.framework.markup

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

com.tagtraum.framework.markup .Parser

All known Subclasses:   com.tagtraum.jo.jsp .InternalJspParser,
Parser
public class Parser (Code)
This class is capable of reading textual data and recognizing certain parts of that text beginning with a 'magic' character. The default character used is '<'. All parts of the text are returned as I_Element s. The class allows to register certain element classes for tag starts.
Not recognized parts are returned as an instance of the default element class.
author:
   Hendrik Schreiber
version:
   1.1beta1 $Id: Parser.java,v 1.9 2005/07/06 18:31:00 hendriks73 Exp $

Field Summary
protected Constructor myDefaultElementConstructor

protected HashMap myElementMap

protected Constructor[] myElements

protected int myLongestTagStartLength

protected int myMagicChar

protected Reader myRawReader

protected PushbackReader myReader
     Internal Reader.
protected String[] myTagStarts

protected URL myURL

public static String vcid


Constructor Summary
public Parser(Reader aReader)
     Create a new Parser.
public Parser(URL aURL)
     Creates a new Parser.
public Parser(URL aURL, String anEncoding)
     Creates a new Parser.

Method Summary
public void addElementClass(Class anElementClass, String aTagStart)
     Registers an Element class.
public void close()
     Closes the underlying reader.
protected I_Element getDefaultElement()
     Returns a new instance of the default element.
public Constructor getDefaultElementConstructor()
     Returns the default element Constructor.
protected I_Element getElement()
     Read first characters and return the appropiate I_Element .
public Constructor getElementConstructor(String aTagStart)
     Returns an Element class.
public char getMagicChar()
     Returns the 'magic' character.
protected String getTagStart(Class aClass)
     Returns the value of the method getTagStart() of an element class.
public URL getURL()
     Returns the URL this parser is parsing.
public static void main(String[] args)
     Tests.
public I_Element nextElement()
     Returns the next I_Element .
public void removeElementClass(String aTagStart)
     Un-Registers an Element class.
protected void reorderTagStarts()
     Order TagStarts and ElementClasses to get the longest match first.
public void setDefaultElementClass(Constructor aDefaultElementConstructor)
     Sets the default element Constructor.
public void setMagicChar(char aMagicChar)
     Sets the 'magic' character.
public void setURL(URL aURL)
     Associates this parser with an URL.

Field Detail
myDefaultElementConstructor
protected Constructor myDefaultElementConstructor(Code)

myElementMap
protected HashMap myElementMap(Code)

myElements
protected Constructor[] myElements(Code)

myLongestTagStartLength
protected int myLongestTagStartLength(Code)

myMagicChar
protected int myMagicChar(Code)

myRawReader
protected Reader myRawReader(Code)

myReader
protected PushbackReader myReader(Code)
Internal Reader.

myTagStarts
protected String[] myTagStarts(Code)

myURL
protected URL myURL(Code)

vcid
public static String vcid(Code)
Source-Version

Constructor Detail
Parser
public Parser(Reader aReader)(Code)
Create a new Parser.
Parameters:
  aReader - a Reader that supports mark

Parser
public Parser(URL aURL) throws IOException(Code)
Creates a new Parser.
Parameters:
  aURL - the URL is opened and the resulting InputStream iswrapped with an InputputStreamReader using the default encoding

Parser
public Parser(URL aURL, String anEncoding) throws IOException(Code)
Creates a new Parser.
Parameters:
  aURL - the URL is opened and the resulting InputStream iswrapped with an InputputStreamReader using the specified encoding
Parameters:
  anEncoding - the way data is encoded

Method Detail
addElementClass
public void addElementClass(Class anElementClass, String aTagStart) throws ParserException, NoSuchMethodException(Code)
Registers an Element class.
Parameters:
  anElementClass - an Element class
throws:
  ParserException - if the class does not have a method called "getTagStart"

close
public void close() throws IOException(Code)
Closes the underlying reader.

getDefaultElement
protected I_Element getDefaultElement() throws IOException(Code)
Returns a new instance of the default element. It usually repersents raw data. an I_Element
See Also:   RawDataElement

getDefaultElementConstructor
public Constructor getDefaultElementConstructor()(Code)
Returns the default element Constructor. The default value for this is RawDataElement . the default element Constructor
See Also:   Parser.setDefaultElementClass

getElement
protected I_Element getElement() throws IOException(Code)
Read first characters and return the appropiate I_Element . an Element or null if EOF

getElementConstructor
public Constructor getElementConstructor(String aTagStart)(Code)
Returns an Element class.
Parameters:
  aTagStart - String the class is registered under
See Also:   Tag.getTagStart

getMagicChar
public char getMagicChar()(Code)
Returns the 'magic' character. the 'magic' character

getTagStart
protected String getTagStart(Class aClass) throws ParserException(Code)
Returns the value of the method getTagStart() of an element class.

getURL
public URL getURL()(Code)
Returns the URL this parser is parsing. Note that this must have been set explicitly using Parser.setURL unless you used the appropriate constructor. the URL this Parser is parsing.

main
public static void main(String[] args) throws Exception(Code)
Tests.

nextElement
public I_Element nextElement() throws IOException(Code)
Returns the next I_Element . return the next element or null if EOF is reached

removeElementClass
public void removeElementClass(String aTagStart) throws ParserException(Code)
Un-Registers an Element class.
throws:
  ParserException - if the class does not have a method called "getTagStart"

reorderTagStarts
protected void reorderTagStarts()(Code)
Order TagStarts and ElementClasses to get the longest match first.

setDefaultElementClass
public void setDefaultElementClass(Constructor aDefaultElementConstructor)(Code)
Sets the default element Constructor. The default value for this is RawDataElement .
Parameters:
  aDefaultElementConstructor - the default element Constructor
See Also:   Parser.getDefaultElementConstructor()

setMagicChar
public void setMagicChar(char aMagicChar)(Code)
Sets the 'magic' character.
Parameters:
  aMagicChar - the stop character

setURL
public void setURL(URL aURL)(Code)
Associates this parser with an URL.
Parameters:
  aURL - the URL this Parser is parsing.

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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