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Added source for ByteEdit
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@@ -0,0 +1,487 @@
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/*
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* 01/24/2005
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*
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* XMLTokenMaker.java - Generates tokens for XML syntax highlighting.
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*
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* This library is distributed under a modified BSD license. See the included
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* RSyntaxTextArea.License.txt file for details.
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*/
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package org.fife.ui.rsyntaxtextarea.modes;
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import java.io.*;
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import javax.swing.text.Segment;
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import org.fife.ui.rsyntaxtextarea.*;
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/**
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* Scanner for XML.
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*
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* This implementation was created using
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* <a href="http://www.jflex.de/">JFlex</a> 1.4.1; however, the generated file
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* was modified for performance. Memory allocation needs to be almost
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* completely removed to be competitive with the handwritten lexers (subclasses
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* of <code>AbstractTokenMaker</code>, so this class has been modified so that
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* Strings are never allocated (via yytext()), and the scanner never has to
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* worry about refilling its buffer (needlessly copying chars around).
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* We can achieve this because RText always scans exactly 1 line of tokens at a
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* time, and hands the scanner this line as an array of characters (a Segment
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* really). Since tokens contain pointers to char arrays instead of Strings
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* holding their contents, there is no need for allocating new memory for
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* Strings.<p>
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*
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* The actual algorithm generated for scanning has, of course, not been
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* modified.<p>
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*
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* If you wish to regenerate this file yourself, keep in mind the following:
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* <ul>
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* <li>The generated <code>XMLTokenMaker.java</code> file will contain two
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* definitions of both <code>zzRefill</code> and <code>yyreset</code>.
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* You should hand-delete the second of each definition (the ones
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* generated by the lexer), as these generated methods modify the input
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* buffer, which we'll never have to do.</li>
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* <li>You should also change the declaration/definition of zzBuffer to NOT
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* be initialized. This is a needless memory allocation for us since we
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* will be pointing the array somewhere else anyway.</li>
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* <li>You should NOT call <code>yylex()</code> on the generated scanner
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* directly; rather, you should use <code>getTokenList</code> as you would
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* with any other <code>TokenMaker</code> instance.</li>
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* </ul>
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*
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* @author Robert Futrell
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* @version 0.5
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*
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*/
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%%
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%public
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%class XMLTokenMaker
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%extends AbstractMarkupTokenMaker
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%unicode
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%type org.fife.ui.rsyntaxtextarea.Token
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%{
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/**
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* Type specific to XMLTokenMaker denoting a line ending with an unclosed
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* double-quote attribute.
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*/
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public static final int INTERNAL_ATTR_DOUBLE = -1;
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/**
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* Type specific to XMLTokenMaker denoting a line ending with an unclosed
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* single-quote attribute.
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*/
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public static final int INTERNAL_ATTR_SINGLE = -2;
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/**
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* Token type specific to XMLTokenMaker denoting a line ending with an
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* unclosed XML tag; thus a new line is beginning still inside of the tag.
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*/
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public static final int INTERNAL_INTAG = -3;
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/**
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* Token type specific to XMLTokenMaker denoting a line ending with an
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* unclosed DOCTYPE element.
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*/
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public static final int INTERNAL_DTD = -4;
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/**
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* Token type specific to XMLTokenMaker denoting a line ending with an
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* unclosed, locally-defined DTD in a DOCTYPE element.
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*/
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public static final int INTERNAL_DTD_INTERNAL = -5;
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/**
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* Token type specific to XMLTokenMaker denoting a line ending with an
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* unclosed comment. The state to return to when this comment ends is
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* embedded in the token type as well.
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*/
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public static final int INTERNAL_IN_XML_COMMENT = -(1<<11);
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/**
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* Whether closing markup tags are automatically completed for HTML.
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*/
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private static boolean completeCloseTags;
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/**
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* Whether the DTD we're currently in is a locally-defined one. This
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* field is only valid when in a DOCTYPE element (the <DTD> state).
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*/
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private boolean inInternalDtd;
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/**
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* The state we were in prior to the current one. This is used to know
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* what state to resume after an MLC ends.
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*/
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private int prevState;
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/**
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* Constructor. This must be here because JFlex does not generate a
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* no-parameter constructor.
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*/
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public XMLTokenMaker() {
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}
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static {
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completeCloseTags = true;
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}
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/**
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* Adds the token specified to the current linked list of tokens as an
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* "end token;" that is, at <code>zzMarkedPos</code>.
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*
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* @param tokenType The token's type.
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*/
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private void addEndToken(int tokenType) {
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addToken(zzMarkedPos,zzMarkedPos, tokenType);
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}
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||||
/**
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||||
* Adds the token specified to the current linked list of tokens.
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*
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* @param tokenType The token's type.
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* @see #addToken(int, int, int)
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*/
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private void addHyperlinkToken(int start, int end, int tokenType) {
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int so = start + offsetShift;
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addToken(zzBuffer, start,end, tokenType, so, true);
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}
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/**
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* Adds the token specified to the current linked list of tokens.
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*
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* @param tokenType The token's type.
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*/
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private void addToken(int tokenType) {
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addToken(zzStartRead, zzMarkedPos-1, tokenType);
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}
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/**
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* Adds the token specified to the current linked list of tokens.
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*
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* @param tokenType The token's type.
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*/
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private void addToken(int start, int end, int tokenType) {
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int so = start + offsetShift;
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addToken(zzBuffer, start,end, tokenType, so);
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}
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/**
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* Adds the token specified to the current linked list of tokens.
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*
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* @param array The character array.
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* @param start The starting offset in the array.
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* @param end The ending offset in the array.
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* @param tokenType The token's type.
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* @param startOffset The offset in the document at which this token
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* occurs.
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*/
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@Override
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public void addToken(char[] array, int start, int end, int tokenType, int startOffset) {
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super.addToken(array, start,end, tokenType, startOffset);
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zzStartRead = zzMarkedPos;
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}
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/**
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* {@inheritDoc}
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*/
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protected OccurrenceMarker createOccurrenceMarker() {
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return new XmlOccurrenceMarker();
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}
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/**
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* Returns whether markup close tags should be completed. For XML, the
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* default value is <code>true</code>.
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*
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* @return Whether closing markup tags are completed.
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* @see #setCompleteCloseTags(boolean)
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*/
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@Override
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public boolean getCompleteCloseTags() {
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return completeCloseTags;
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}
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/**
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* Static version of {@link #getCompleteCloseTags()}. This hack is
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* unfortunately needed for applications to be able to query this value
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* without instantiating this class.
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*
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* @return Whether closing markup tags are completed.
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* @see #setCompleteCloseTags(boolean)
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*/
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public static boolean getCompleteCloseMarkupTags() {
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return completeCloseTags;
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}
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/**
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* Returns <code>Token.MARKUP_TAG_NAME</code>.
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*
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* @param type The token type.
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* @return Whether tokens of this type should have "mark occurrences"
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* enabled.
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*/
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public boolean getMarkOccurrencesOfTokenType(int type) {
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return type==Token.MARKUP_TAG_NAME;
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}
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/**
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* Returns the first token in the linked list of tokens generated
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* from <code>text</code>. This method must be implemented by
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* subclasses so they can correctly implement syntax highlighting.
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*
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* @param text The text from which to get tokens.
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* @param initialTokenType The token type we should start with.
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* @param startOffset The offset into the document at which
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* <code>text</code> starts.
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* @return The first <code>Token</code> in a linked list representing
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* the syntax highlighted text.
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*/
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public Token getTokenList(Segment text, int initialTokenType, int startOffset) {
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resetTokenList();
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this.offsetShift = -text.offset + startOffset;
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prevState = YYINITIAL;
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inInternalDtd = false;
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// Start off in the proper state.
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int state = YYINITIAL;
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switch (initialTokenType) {
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case Token.MARKUP_COMMENT:
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state = COMMENT;
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break;
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case INTERNAL_DTD:
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state = DTD;
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break;
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case INTERNAL_DTD_INTERNAL:
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state = DTD;
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inInternalDtd = true;
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break;
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case INTERNAL_ATTR_DOUBLE:
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state = INATTR_DOUBLE;
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break;
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case INTERNAL_ATTR_SINGLE:
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state = INATTR_SINGLE;
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break;
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case Token.MARKUP_PROCESSING_INSTRUCTION:
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state = PI;
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break;
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case INTERNAL_INTAG:
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state = INTAG;
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break;
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case Token.MARKUP_CDATA:
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state = CDATA;
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break;
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default:
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if (initialTokenType<-1024) { // INTERNAL_IN_XML_COMMENT - prevState
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int main = -(-initialTokenType & 0xffffff00);
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switch (main) {
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default: // Should never happen
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case INTERNAL_IN_XML_COMMENT:
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state = COMMENT;
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break;
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}
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prevState = -initialTokenType&0xff;
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}
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else { // Shouldn't happen
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state = Token.NULL;
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}
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}
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start = text.offset;
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s = text;
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try {
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yyreset(zzReader);
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yybegin(state);
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return yylex();
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} catch (IOException ioe) {
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ioe.printStackTrace();
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return new TokenImpl();
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}
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}
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/**
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* Sets whether markup close tags should be completed.
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*
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* @param complete Whether closing markup tags are completed.
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* @see #getCompleteCloseTags()
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*/
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public static void setCompleteCloseTags(boolean complete) {
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completeCloseTags = complete;
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}
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/**
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* Refills the input buffer.
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*
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* @return <code>true</code> if EOF was reached, otherwise
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* <code>false</code>.
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*/
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private boolean zzRefill() {
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return zzCurrentPos>=s.offset+s.count;
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}
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/**
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* Resets the scanner to read from a new input stream.
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* Does not close the old reader.
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*
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* All internal variables are reset, the old input stream
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* <b>cannot</b> be reused (internal buffer is discarded and lost).
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* Lexical state is set to <code>YY_INITIAL</code>.
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*
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* @param reader the new input stream
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*/
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public final void yyreset(java.io.Reader reader) {
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// 's' has been updated.
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zzBuffer = s.array;
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/*
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* We replaced the line below with the two below it because zzRefill
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* no longer "refills" the buffer (since the way we do it, it's always
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* "full" the first time through, since it points to the segment's
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* array). So, we assign zzEndRead here.
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*/
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//zzStartRead = zzEndRead = s.offset;
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zzStartRead = s.offset;
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zzEndRead = zzStartRead + s.count - 1;
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zzCurrentPos = zzMarkedPos = zzPushbackPos = s.offset;
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zzLexicalState = YYINITIAL;
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zzReader = reader;
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zzAtBOL = true;
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zzAtEOF = false;
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}
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%}
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NameStartChar = ([\:A-Z_a-z])
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NameChar = ({NameStartChar}|[\-\.0-9])
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TagName = ({NameStartChar}{NameChar}*)
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Whitespace = ([ \t\f])
|
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LineTerminator = ([\n])
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Identifier = ([^ \t\n<&]+)
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EntityReference = ([&][^; \t]*[;]?)
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InTagIdentifier = ([^ \t\n\"\'=\/>]+)
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||||
CDataBegin = ("<![CDATA[")
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CDataEnd = ("]]>")
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URLGenDelim = ([:\/\?#\[\]@])
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URLSubDelim = ([\!\$&'\(\)\*\+,;=])
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||||
URLUnreserved = ([A-Za-z_0-9\-\.\~])
|
||||
URLCharacter = ({URLGenDelim}|{URLSubDelim}|{URLUnreserved}|[%])
|
||||
URLCharacters = ({URLCharacter}*)
|
||||
URLEndCharacter = ([\/\$A-Za-z0-9])
|
||||
URL = (((https?|f(tp|ile))"://"|"www.")({URLCharacters}{URLEndCharacter})?)
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||||
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||||
%state COMMENT
|
||||
%state PI
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||||
%state DTD
|
||||
%state INTAG
|
||||
%state INATTR_DOUBLE
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||||
%state INATTR_SINGLE
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||||
%state CDATA
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||||
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||||
%%
|
||||
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||||
<YYINITIAL> {
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"<!--" { start = zzStartRead; prevState = zzLexicalState; yybegin(COMMENT); }
|
||||
{CDataBegin} { addToken(Token.MARKUP_CDATA_DELIMITER); start = zzMarkedPos; yybegin(CDATA); }
|
||||
"<!" { start = zzMarkedPos-2; inInternalDtd = false; yybegin(DTD); }
|
||||
"<?" { start = zzMarkedPos-2; yybegin(PI); }
|
||||
"<"{TagName} {
|
||||
int count = yylength();
|
||||
addToken(zzStartRead,zzStartRead, Token.MARKUP_TAG_DELIMITER);
|
||||
addToken(zzMarkedPos-(count-1), zzMarkedPos-1, Token.MARKUP_TAG_NAME);
|
||||
yybegin(INTAG);
|
||||
}
|
||||
"</"{TagName} {
|
||||
int count = yylength();
|
||||
addToken(zzStartRead,zzStartRead+1, Token.MARKUP_TAG_DELIMITER);
|
||||
addToken(zzMarkedPos-(count-2), zzMarkedPos-1, Token.MARKUP_TAG_NAME);
|
||||
yybegin(INTAG);
|
||||
}
|
||||
"<" { addToken(Token.MARKUP_TAG_DELIMITER); yybegin(INTAG); }
|
||||
"</" { addToken(Token.MARKUP_TAG_DELIMITER); yybegin(INTAG); }
|
||||
{LineTerminator} { addNullToken(); return firstToken; }
|
||||
{Identifier} { addToken(Token.IDENTIFIER); }
|
||||
{EntityReference} { addToken(Token.MARKUP_ENTITY_REFERENCE); }
|
||||
{Whitespace}+ { addToken(Token.WHITESPACE); }
|
||||
<<EOF>> { addNullToken(); return firstToken; }
|
||||
}
|
||||
|
||||
<COMMENT> {
|
||||
[^hwf\n\-]+ {}
|
||||
{URL} { int temp=zzStartRead; addToken(start,zzStartRead-1, Token.MARKUP_COMMENT); addHyperlinkToken(temp,zzMarkedPos-1, Token.MARKUP_COMMENT); start = zzMarkedPos; }
|
||||
[hwf] {}
|
||||
"-->" { int temp = zzMarkedPos; addToken(start,zzStartRead+2, Token.MARKUP_COMMENT); start = temp; yybegin(prevState); }
|
||||
"-" {}
|
||||
{LineTerminator} |
|
||||
<<EOF>> { addToken(start,zzStartRead-1, Token.MARKUP_COMMENT); addEndToken(INTERNAL_IN_XML_COMMENT - prevState); return firstToken; }
|
||||
}
|
||||
|
||||
<PI> {
|
||||
[^\n\?]+ {}
|
||||
{LineTerminator} { addToken(start,zzStartRead-1, Token.MARKUP_PROCESSING_INSTRUCTION); return firstToken; }
|
||||
"?>" { yybegin(YYINITIAL); addToken(start,zzStartRead+1, Token.MARKUP_PROCESSING_INSTRUCTION); }
|
||||
"?" {}
|
||||
<<EOF>> { addToken(start,zzStartRead-1, Token.MARKUP_PROCESSING_INSTRUCTION); return firstToken; }
|
||||
}
|
||||
|
||||
<DTD> {
|
||||
[^\n\[\]<>]+ {}
|
||||
"<!--" { int temp = zzStartRead; addToken(start,zzStartRead-1, Token.MARKUP_DTD); start = temp; prevState = zzLexicalState; yybegin(COMMENT); }
|
||||
"<" {}
|
||||
"[" { inInternalDtd = true; }
|
||||
"]" { inInternalDtd = false; }
|
||||
">" { if (!inInternalDtd) { yybegin(YYINITIAL); addToken(start,zzStartRead, Token.MARKUP_DTD); } }
|
||||
{LineTerminator} |
|
||||
<<EOF>> { addToken(start,zzStartRead-1, Token.MARKUP_DTD); addEndToken(inInternalDtd ? INTERNAL_DTD_INTERNAL : INTERNAL_DTD); return firstToken; }
|
||||
}
|
||||
|
||||
<INTAG> {
|
||||
{InTagIdentifier} { addToken(Token.MARKUP_TAG_ATTRIBUTE); }
|
||||
{Whitespace}+ { addToken(Token.WHITESPACE); }
|
||||
"=" { addToken(Token.OPERATOR); }
|
||||
"/" { addToken(Token.MARKUP_TAG_DELIMITER); /* Not valid but we'll still accept it */ }
|
||||
"/>" { yybegin(YYINITIAL); addToken(Token.MARKUP_TAG_DELIMITER); }
|
||||
">" { yybegin(YYINITIAL); addToken(Token.MARKUP_TAG_DELIMITER); }
|
||||
[\"] { start = zzMarkedPos-1; yybegin(INATTR_DOUBLE); }
|
||||
[\'] { start = zzMarkedPos-1; yybegin(INATTR_SINGLE); }
|
||||
<<EOF>> { addToken(start,zzStartRead-1, INTERNAL_INTAG); return firstToken; }
|
||||
}
|
||||
|
||||
<INATTR_DOUBLE> {
|
||||
[^\"]* {}
|
||||
[\"] { yybegin(INTAG); addToken(start,zzStartRead, Token.MARKUP_TAG_ATTRIBUTE_VALUE); }
|
||||
<<EOF>> { addToken(start,zzStartRead-1, Token.MARKUP_TAG_ATTRIBUTE_VALUE); addEndToken(INTERNAL_ATTR_DOUBLE); return firstToken; }
|
||||
}
|
||||
|
||||
<INATTR_SINGLE> {
|
||||
[^\']* {}
|
||||
[\'] { yybegin(INTAG); addToken(start,zzStartRead, Token.MARKUP_TAG_ATTRIBUTE_VALUE); }
|
||||
<<EOF>> { addToken(start,zzStartRead-1, Token.MARKUP_TAG_ATTRIBUTE_VALUE); addEndToken(INTERNAL_ATTR_SINGLE); return firstToken; }
|
||||
}
|
||||
|
||||
<CDATA> {
|
||||
[^\]]+ {}
|
||||
{CDataEnd} { int temp=zzStartRead; yybegin(YYINITIAL); addToken(start,zzStartRead-1, Token.MARKUP_CDATA); addToken(temp,zzMarkedPos-1, Token.MARKUP_CDATA_DELIMITER); }
|
||||
"]" {}
|
||||
<<EOF>> { addToken(start,zzStartRead-1, Token.MARKUP_CDATA); return firstToken; }
|
||||
}
|
||||
Reference in new issue
Block a user