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RSyntaxTextArea is the syntax highlighting text editor for Swing applications. Features include syntax highlighting for 40+ languages, code folding, code completion, regex find and replace, macros, code templates, undo/redo, line numbering and bracket matching.

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/* The following code was generated by JFlex 1.4.1 on 2/25/10 4:07 PM */

/*
 * 01/24/2005
 *
 * XMLTokenMaker.java - Generates tokens for XML syntax highlighting.
 * Copyright (C) 2005 Robert Futrell
 * robert_futrell at users.sourceforge.net
 * http://fifesoft.com/rsyntaxtextarea
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA.
 */
package org.fife.ui.rsyntaxtextarea.modes;

import java.io.*;
import javax.swing.text.Segment;

import org.fife.ui.rsyntaxtextarea.*;


/**
 * Scanner for XML.
 *
 * This implementation was created using
 * JFlex 1.4.1; however, the generated file
 * was modified for performance.  Memory allocation needs to be almost
 * completely removed to be competitive with the handwritten lexers (subclasses
 * of AbstractTokenMaker, so this class has been modified so that
 * Strings are never allocated (via yytext()), and the scanner never has to
 * worry about refilling its buffer (needlessly copying chars around).
 * We can achieve this because RText always scans exactly 1 line of tokens at a
 * time, and hands the scanner this line as an array of characters (a Segment
 * really).  Since tokens contain pointers to char arrays instead of Strings
 * holding their contents, there is no need for allocating new memory for
 * Strings.

* * The actual algorithm generated for scanning has, of course, not been * modified.

* * If you wish to regenerate this file yourself, keep in mind the following: *

    *
  • The generated XMLTokenMaker.java file will contain two * definitions of both zzRefill and yyreset. * You should hand-delete the second of each definition (the ones * generated by the lexer), as these generated methods modify the input * buffer, which we'll never have to do.
  • *
  • You should also change the declaration/definition of zzBuffer to NOT * be initialized. This is a needless memory allocation for us since we * will be pointing the array somewhere else anyway.
  • *
  • You should NOT call yylex() on the generated scanner * directly; rather, you should use getTokenList as you would * with any other TokenMaker instance.
  • *
* * @author Robert Futrell * @version 0.5 * */ public class XMLTokenMaker extends AbstractMarkupTokenMaker { /** This character denotes the end of file */ public static final int YYEOF = -1; /** lexical states */ public static final int INTAG = 4; public static final int DTD = 3; public static final int INATTR_DOUBLE = 5; public static final int YYINITIAL = 0; public static final int COMMENT = 1; public static final int CDATA = 7; public static final int INATTR_SINGLE = 6; public static final int PI = 2; /** * Translates characters to character classes */ private static final String ZZ_CMAP_PACKED = "\11\0\1\6\1\4\1\0\1\3\23\0\1\6\1\12\1\26\3\0"+ "\1\7\1\11\5\0\1\22\1\2\1\24\12\2\1\1\1\10\1\5"+ "\1\25\1\21\1\23\1\0\1\16\1\1\1\14\1\15\17\1\1\17"+ "\6\1\1\13\1\0\1\20\1\0\1\1\1\0\32\1\uff85\0"; /** * Translates characters to character classes */ private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED); /** * Translates DFA states to action switch labels. */ private static final int [] ZZ_ACTION = zzUnpackAction(); private static final String ZZ_ACTION_PACKED_0 = "\5\0\2\1\1\0\2\2\1\3\1\4\1\5\1\6"+ "\1\1\1\7\2\1\1\10\2\1\1\11\1\12\2\13"+ "\1\14\1\15\1\16\1\17\1\20\1\1\1\21\1\1"+ "\1\22\2\1\1\23\1\24\1\25\1\4\1\6\1\0"+ "\1\26\3\0\1\27\1\30\1\31\1\0\1\32\4\0"+ "\1\33"; private static int [] zzUnpackAction() { int [] result = new int[56]; int offset = 0; offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result); return result; } private static int zzUnpackAction(String packed, int offset, int [] result) { int i = 0; /* index in packed string */ int j = offset; /* index in unpacked array */ int l = packed.length(); while (i < l) { int count = packed.charAt(i++); int value = packed.charAt(i++); do result[j++] = value; while (--count > 0); } return j; } /** * Translates a state to a row index in the transition table */ private static final int [] ZZ_ROWMAP = zzUnpackRowMap(); private static final String ZZ_ROWMAP_PACKED_0 = "\0\0\0\27\0\56\0\105\0\134\0\163\0\212\0\241"+ "\0\270\0\317\0\346\0\375\0\u0114\0\u012b\0\u0142\0\346"+ "\0\u0159\0\u0170\0\346\0\u0187\0\u019e\0\346\0\346\0\u01b5"+ "\0\u01cc\0\346\0\346\0\u01e3\0\346\0\346\0\u01fa\0\346"+ "\0\u0211\0\346\0\u0228\0\u023f\0\u0256\0\u026d\0\346\0\u0284"+ "\0\346\0\u029b\0\346\0\u02b2\0\u02c9\0\u02e0\0\u02f7\0\346"+ "\0\346\0\u030e\0\346\0\u0325\0\u033c\0\u0353\0\u036a\0\346"; private static int [] zzUnpackRowMap() { int [] result = new int[56]; int offset = 0; offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result); return result; } private static int zzUnpackRowMap(String packed, int offset, int [] result) { int i = 0; /* index in packed string */ int j = offset; /* index in unpacked array */ int l = packed.length(); while (i < l) { int high = packed.charAt(i++) << 16; result[j++] = high | packed.charAt(i++); } return j; } /** * The transition table of the DFA */ private static final int [] ZZ_TRANS = zzUnpackTrans(); private static final String ZZ_TRANS_PACKED_0 = "\3\11\1\12\1\13\1\14\1\15\1\16\17\11\4\17"+ "\1\20\15\17\1\21\4\17\4\22\1\23\16\22\1\24"+ "\3\22\4\25\1\26\14\25\1\27\5\25\3\30\1\31"+ "\1\0\1\30\1\15\2\30\1\32\7\30\1\33\2\30"+ "\1\34\1\35\1\36\26\37\1\40\11\41\1\42\15\41"+ "\20\43\1\44\6\43\4\11\4\0\22\11\1\12\2\0"+ "\1\15\1\0\17\11\30\0\1\45\10\0\1\46\1\0"+ "\4\45\3\0\1\47\1\50\5\0\1\15\2\0\1\15"+ "\20\0\6\16\1\0\1\16\1\51\16\16\4\17\1\0"+ "\15\17\1\0\4\17\22\0\1\52\4\0\4\22\1\0"+ "\16\22\1\0\3\22\21\0\1\53\5\0\4\25\1\0"+ "\14\25\1\0\5\25\4\30\1\0\1\30\1\0\2\30"+ "\1\0\7\30\1\0\2\30\3\0\3\30\1\31\1\0"+ "\1\30\1\15\2\30\1\0\7\30\1\0\2\30\24\0"+ "\1\33\5\0\26\37\1\0\11\41\1\0\15\41\20\43"+ "\1\0\6\43\20\0\1\54\7\0\2\45\11\0\4\45"+ "\2\0\1\45\17\0\1\55\6\0\1\56\5\0\1\57"+ "\12\0\4\57\30\0\1\60\26\0\1\61\21\0\1\62"+ "\34\0\1\63\5\0\2\57\11\0\4\57\2\0\1\57"+ "\21\0\1\64\27\0\1\65\27\0\1\66\25\0\1\67"+ "\23\0\1\70\13\0"; private static int [] zzUnpackTrans() { int [] result = new int[897]; int offset = 0; offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result); return result; } private static int zzUnpackTrans(String packed, int offset, int [] result) { int i = 0; /* index in packed string */ int j = offset; /* index in unpacked array */ int l = packed.length(); while (i < l) { int count = packed.charAt(i++); int value = packed.charAt(i++); value--; do result[j++] = value; while (--count > 0); } return j; } /* error codes */ private static final int ZZ_UNKNOWN_ERROR = 0; private static final int ZZ_NO_MATCH = 1; private static final int ZZ_PUSHBACK_2BIG = 2; /* error messages for the codes above */ private static final String ZZ_ERROR_MSG[] = { "Unkown internal scanner error", "Error: could not match input", "Error: pushback value was too large" }; /** * ZZ_ATTRIBUTE[aState] contains the attributes of state aState */ private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute(); private static final String ZZ_ATTRIBUTE_PACKED_0 = "\5\0\2\1\1\0\2\1\1\11\4\1\1\11\2\1"+ "\1\11\2\1\2\11\2\1\2\11\1\1\2\11\1\1"+ "\1\11\1\1\1\11\4\1\1\11\1\1\1\11\1\0"+ "\1\11\3\0\1\1\2\11\1\0\1\11\4\0\1\11"; private static int [] zzUnpackAttribute() { int [] result = new int[56]; int offset = 0; offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result); return result; } private static int zzUnpackAttribute(String packed, int offset, int [] result) { int i = 0; /* index in packed string */ int j = offset; /* index in unpacked array */ int l = packed.length(); while (i < l) { int count = packed.charAt(i++); int value = packed.charAt(i++); do result[j++] = value; while (--count > 0); } return j; } /** the input device */ private java.io.Reader zzReader; /** the current state of the DFA */ private int zzState; /** the current lexical state */ private int zzLexicalState = YYINITIAL; /** this buffer contains the current text to be matched and is the source of the yytext() string */ private char zzBuffer[]; /** the textposition at the last accepting state */ private int zzMarkedPos; /** the current text position in the buffer */ private int zzCurrentPos; /** startRead marks the beginning of the yytext() string in the buffer */ private int zzStartRead; /** endRead marks the last character in the buffer, that has been read from input */ private int zzEndRead; /** zzAtEOF == true <=> the scanner is at the EOF */ private boolean zzAtEOF; /* user code: */ /** * Token type specific to XMLTokenMaker; this signals that the user has * ended a line with an unclosed XML tag; thus a new line is beginning * still inside of the tag. */ public static final int INTERNAL_INTAG = -1; /** * Whether closing markup tags are automatically completed for HTML. */ private static boolean completeCloseTags; /** * Constructor. This must be here because JFlex does not generate a * no-parameter constructor. */ public XMLTokenMaker() { } static { completeCloseTags = true; } /** * Adds the token specified to the current linked list of tokens. * * @param tokenType The token's type. */ private void addToken(int tokenType) { addToken(zzStartRead, zzMarkedPos-1, tokenType); } /** * Adds the token specified to the current linked list of tokens. * * @param tokenType The token's type. */ private void addToken(int start, int end, int tokenType) { int so = start + offsetShift; addToken(zzBuffer, start,end, tokenType, so); } /** * Adds the token specified to the current linked list of tokens. * * @param array The character array. * @param start The starting offset in the array. * @param end The ending offset in the array. * @param tokenType The token's type. * @param startOffset The offset in the document at which this token * occurs. */ public void addToken(char[] array, int start, int end, int tokenType, int startOffset) { super.addToken(array, start,end, tokenType, startOffset); zzStartRead = zzMarkedPos; } /** * Returns whether markup close tags should be completed. For XML, the * default value is true. * * @return Whether closing markup tags are completed. * @see #setCompleteCloseTags(boolean) */ public boolean getCompleteCloseTags() { return completeCloseTags; } /** * Static version of {@link #getCompleteCloseTags()}. This hack is * unfortunately needed for applications to be able to query this value * without instantiating this class. * * @return Whether closing markup tags are completed. * @see #setCompleteCloseTags(boolean) */ public static boolean getCompleteCloseMarkupTags() { return completeCloseTags; } /** * Always returns false, as you never want "mark occurrences" * working in XML files. * * @param type The token type. * @return Whether tokens of this type should have "mark occurrences" * enabled. */ public boolean getMarkOccurrencesOfTokenType(int type) { return false; } /** * Returns the first token in the linked list of tokens generated * from text. This method must be implemented by * subclasses so they can correctly implement syntax highlighting. * * @param text The text from which to get tokens. * @param initialTokenType The token type we should start with. * @param startOffset The offset into the document at which * text starts. * @return The first Token in a linked list representing * the syntax highlighted text. */ public Token getTokenList(Segment text, int initialTokenType, int startOffset) { resetTokenList(); this.offsetShift = -text.offset + startOffset; // Start off in the proper state. int state = Token.NULL; switch (initialTokenType) { case Token.COMMENT_MULTILINE: state = COMMENT; start = text.offset; break; case Token.FUNCTION: state = DTD; start = text.offset; break; case Token.LITERAL_STRING_DOUBLE_QUOTE: state = INATTR_DOUBLE; start = text.offset; break; case Token.LITERAL_CHAR: state = INATTR_SINGLE; start = text.offset; break; case Token.PREPROCESSOR: state = PI; start = text.offset; break; case INTERNAL_INTAG: state = INTAG; start = text.offset; break; case Token.VARIABLE: state = CDATA; start = text.offset; break; default: state = Token.NULL; } s = text; try { yyreset(zzReader); yybegin(state); return yylex(); } catch (IOException ioe) { ioe.printStackTrace(); return new DefaultToken(); } } /** * Sets whether markup close tags should be completed. * * @param complete Whether closing markup tags are completed. * @see #getCompleteCloseTags() */ public static void setCompleteCloseTags(boolean complete) { completeCloseTags = complete; } /** * Refills the input buffer. * * @return true if EOF was reached, otherwise * false. */ private boolean zzRefill() { return zzCurrentPos>=s.offset+s.count; } /** * Resets the scanner to read from a new input stream. * Does not close the old reader. * * All internal variables are reset, the old input stream * cannot be reused (internal buffer is discarded and lost). * Lexical state is set to YY_INITIAL. * * @param reader the new input stream */ public final void yyreset(java.io.Reader reader) { // 's' has been updated. zzBuffer = s.array; /* * We replaced the line below with the two below it because zzRefill * no longer "refills" the buffer (since the way we do it, it's always * "full" the first time through, since it points to the segment's * array). So, we assign zzEndRead here. */ //zzStartRead = zzEndRead = s.offset; zzStartRead = s.offset; zzEndRead = zzStartRead + s.count - 1; zzCurrentPos = zzMarkedPos = s.offset; zzLexicalState = YYINITIAL; zzReader = reader; zzAtEOF = false; } /** * Creates a new scanner * There is also a java.io.InputStream version of this constructor. * * @param in the java.io.Reader to read input from. */ public XMLTokenMaker(java.io.Reader in) { this.zzReader = in; } /** * Creates a new scanner. * There is also java.io.Reader version of this constructor. * * @param in the java.io.Inputstream to read input from. */ public XMLTokenMaker(java.io.InputStream in) { this(new java.io.InputStreamReader(in)); } /** * Unpacks the compressed character translation table. * * @param packed the packed character translation table * @return the unpacked character translation table */ private static char [] zzUnpackCMap(String packed) { char [] map = new char[0x10000]; int i = 0; /* index in packed string */ int j = 0; /* index in unpacked array */ while (i < 78) { int count = packed.charAt(i++); char value = packed.charAt(i++); do map[j++] = value; while (--count > 0); } return map; } /** * Closes the input stream. */ public final void yyclose() throws java.io.IOException { zzAtEOF = true; /* indicate end of file */ zzEndRead = zzStartRead; /* invalidate buffer */ if (zzReader != null) zzReader.close(); } /** * Returns the current lexical state. */ public final int yystate() { return zzLexicalState; } /** * Enters a new lexical state * * @param newState the new lexical state */ public final void yybegin(int newState) { zzLexicalState = newState; } /** * Returns the text matched by the current regular expression. */ public final String yytext() { return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead ); } /** * Returns the character at position pos from the * matched text. * * It is equivalent to yytext().charAt(pos), but faster * * @param pos the position of the character to fetch. * A value from 0 to yylength()-1. * * @return the character at position pos */ public final char yycharat(int pos) { return zzBuffer[zzStartRead+pos]; } /** * Returns the length of the matched text region. */ public final int yylength() { return zzMarkedPos-zzStartRead; } /** * Reports an error that occured while scanning. * * In a wellformed scanner (no or only correct usage of * yypushback(int) and a match-all fallback rule) this method * will only be called with things that "Can't Possibly Happen". * If this method is called, something is seriously wrong * (e.g. a JFlex bug producing a faulty scanner etc.). * * Usual syntax/scanner level error handling should be done * in error fallback rules. * * @param errorCode the code of the errormessage to display */ private void zzScanError(int errorCode) { String message; try { message = ZZ_ERROR_MSG[errorCode]; } catch (ArrayIndexOutOfBoundsException e) { message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR]; } throw new Error(message); } /** * Pushes the specified amount of characters back into the input stream. * * They will be read again by then next call of the scanning method * * @param number the number of characters to be read again. * This number must not be greater than yylength()! */ public void yypushback(int number) { if ( number > yylength() ) zzScanError(ZZ_PUSHBACK_2BIG); zzMarkedPos -= number; } /** * Resumes scanning until the next regular expression is matched, * the end of input is encountered or an I/O-Error occurs. * * @return the next token * @exception java.io.IOException if any I/O-Error occurs */ public org.fife.ui.rsyntaxtextarea.Token yylex() throws java.io.IOException { int zzInput; int zzAction; // cached fields: int zzCurrentPosL; int zzMarkedPosL; int zzEndReadL = zzEndRead; char [] zzBufferL = zzBuffer; char [] zzCMapL = ZZ_CMAP; int [] zzTransL = ZZ_TRANS; int [] zzRowMapL = ZZ_ROWMAP; int [] zzAttrL = ZZ_ATTRIBUTE; while (true) { zzMarkedPosL = zzMarkedPos; zzAction = -1; zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL; zzState = zzLexicalState; zzForAction: { while (true) { if (zzCurrentPosL < zzEndReadL) zzInput = zzBufferL[zzCurrentPosL++]; else if (zzAtEOF) { zzInput = YYEOF; break zzForAction; } else { // store back cached positions zzCurrentPos = zzCurrentPosL; zzMarkedPos = zzMarkedPosL; boolean eof = zzRefill(); // get translated positions and possibly new buffer zzCurrentPosL = zzCurrentPos; zzMarkedPosL = zzMarkedPos; zzBufferL = zzBuffer; zzEndReadL = zzEndRead; if (eof) { zzInput = YYEOF; break zzForAction; } else { zzInput = zzBufferL[zzCurrentPosL++]; } } int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ]; if (zzNext == -1) break zzForAction; zzState = zzNext; int zzAttributes = zzAttrL[zzState]; if ( (zzAttributes & 1) == 1 ) { zzAction = zzState; zzMarkedPosL = zzCurrentPosL; if ( (zzAttributes & 8) == 8 ) break zzForAction; } } } // store back cached position zzMarkedPos = zzMarkedPosL; switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) { case 3: { addNullToken(); return firstToken; } case 28: break; case 4: { addToken(Token.MARKUP_TAG_DELIMITER); yybegin(INTAG); } case 29: break; case 23: { int count = yylength(); addToken(zzStartRead,zzStartRead+1, Token.MARKUP_TAG_DELIMITER); addToken(zzMarkedPos-(count-2), zzMarkedPos-1, Token.MARKUP_TAG_NAME); yybegin(INTAG); } case 30: break; case 17: { yybegin(INTAG); addToken(start,zzStartRead, Token.LITERAL_STRING_DOUBLE_QUOTE); } case 31: break; case 10: { yybegin(YYINITIAL); addToken(start,zzStartRead, Token.FUNCTION); } case 32: break; case 24: { yybegin(YYINITIAL); addToken(start,zzStartRead+2, Token.COMMENT_MULTILINE); } case 33: break; case 14: { addToken(Token.MARKUP_TAG_DELIMITER); /* Not valid but we'll still accept it */ } case 34: break; case 5: { addToken(Token.WHITESPACE); } case 35: break; case 9: { addToken(start,zzStartRead-1, Token.FUNCTION); return firstToken; } case 36: break; case 20: { start = zzMarkedPos-2; yybegin(DTD); } case 37: break; case 2: { addToken(Token.IDENTIFIER); } case 38: break; case 27: { addToken(Token.DATA_TYPE); start = zzMarkedPos; yybegin(CDATA); } case 39: break; case 6: { addToken(Token.DATA_TYPE); } case 40: break; case 19: { int count = yylength(); addToken(zzStartRead,zzStartRead, Token.MARKUP_TAG_DELIMITER); addToken(zzMarkedPos-(count-1), zzMarkedPos-1, Token.MARKUP_TAG_NAME); yybegin(INTAG); } case 41: break; case 26: { start = zzMarkedPos-4; yybegin(COMMENT); } case 42: break; case 25: { int temp=zzStartRead; yybegin(YYINITIAL); addToken(start,zzStartRead-1, Token.VARIABLE); addToken(temp,zzMarkedPos-1, Token.DATA_TYPE); } case 43: break; case 21: { start = zzMarkedPos-2; yybegin(PI); } case 44: break; case 16: { start = zzMarkedPos-1; yybegin(INATTR_DOUBLE); } case 45: break; case 13: { yybegin(YYINITIAL); addToken(Token.MARKUP_TAG_DELIMITER); } case 46: break; case 12: { start = zzMarkedPos-1; yybegin(INATTR_SINGLE); } case 47: break; case 8: { addToken(start,zzStartRead-1, Token.PREPROCESSOR); return firstToken; } case 48: break; case 18: { yybegin(INTAG); addToken(start,zzStartRead, Token.LITERAL_CHAR); } case 49: break; case 22: { yybegin(YYINITIAL); addToken(start,zzStartRead+1, Token.PREPROCESSOR); } case 50: break; case 15: { addToken(Token.OPERATOR); } case 51: break; case 11: { addToken(Token.MARKUP_TAG_ATTRIBUTE); } case 52: break; case 1: { } case 53: break; case 7: { addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); return firstToken; } case 54: break; default: if (zzInput == YYEOF && zzStartRead == zzCurrentPos) { zzAtEOF = true; switch (zzLexicalState) { case INTAG: { addToken(start,zzStartRead-1, INTERNAL_INTAG); return firstToken; } case 57: break; case DTD: { addToken(start,zzStartRead-1, Token.FUNCTION); return firstToken; } case 58: break; case INATTR_DOUBLE: { addToken(start,zzStartRead-1, Token.LITERAL_STRING_DOUBLE_QUOTE); return firstToken; } case 59: break; case YYINITIAL: { addNullToken(); return firstToken; } case 60: break; case COMMENT: { addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); return firstToken; } case 61: break; case CDATA: { addToken(start,zzStartRead-1, Token.VARIABLE); return firstToken; } case 62: break; case INATTR_SINGLE: { addToken(start,zzStartRead-1, Token.LITERAL_CHAR); return firstToken; } case 63: break; case PI: { addToken(start,zzStartRead-1, Token.PREPROCESSOR); return firstToken; } case 64: break; default: return null; } } else { zzScanError(ZZ_NO_MATCH); } } } } }




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