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: *
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.yylex() on the generated scanner
* directly; rather, you should use getTokenList as you would
* with any other TokenMaker instance.aState
*/
private static final int[] ZZ_ATTRIBUTE = zzUnpackAttribute();
private static final String ZZ_ATTRIBUTE_PACKED_0 = "\5\0\4\1\1\11\5\1\1\11\11\1\5\0\2\1" + "\1\11\3\1\5\0\1\11\5\1\1\11\2\0\6\1"
+ "\2\0\14\1";
private static int[] zzUnpackAttribute() {
int[] result = new int[70];
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 denoting a line ending with an
* unclosed XML tag; thus a new line is beginning still inside of the tag.
*/
public static final int INTERNAL_INTAG_START = -1;
/**
* Token type specific to XMLTokenMaker denoting a line ending with an
* unclosed DOCTYPE element.
*/
public static final int INTERNAL_INTAG_ELEMENT = -2;
/**
* Token type specific to XMLTokenMaker denoting a line ending with an
* unclosed, locally-defined DTD in a DOCTYPE element.
*/
public static final int INTERNAL_INTAG_ATTLIST = -3;
/**
* Token type specific to XMLTokenMaker denoting a line ending with an
* unclosed comment. The state to return to when this comment ends is
* embedded in the token type as well.
*/
public static final int INTERNAL_IN_COMMENT = -(1 << 11);
/**
* The state we were in prior to the current one. This is used to know
* what state to resume after an MLC ends.
*/
private int prevState;
/**
* Constructor. This must be here because JFlex does not generate a
* no-parameter constructor.
*/
public DtdTokenMaker() {}
/**
* Adds the token specified to the current linked list of tokens as an
* "end token;" that is, at zzMarkedPos.
*
* @param tokenType
* The token's type.
*/
private void addEndToken(int tokenType) {
addToken(zzMarkedPos, zzMarkedPos, tokenType);
}
/**
* Adds the token specified to the current linked list of tokens.
*
* @param tokenType
* The token's type.
* @see #addToken(int, int, int)
*/
private void addHyperlinkToken(int start, int end, int tokenType) {
int so = start + offsetShift;
addToken(zzBuffer, start, end, tokenType, so, 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.
*/
@Override
public void addToken(char[] array, int start, int end, int tokenType, int startOffset) {
super.addToken(array, start, end, tokenType, startOffset);
zzStartRead = zzMarkedPos;
}
/**
* 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.
*/
@Override
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.
*/
@Override
public Token getTokenList(Segment text, int initialTokenType, int startOffset) {
resetTokenList();
this.offsetShift = -text.offset + startOffset;
prevState = YYINITIAL;
// Start off in the proper state.
int state = YYINITIAL;
switch (initialTokenType) {
case INTERNAL_INTAG_START:
state = INTAG_START;
break;
case INTERNAL_INTAG_ELEMENT:
state = INTAG_ELEMENT;
break;
case INTERNAL_INTAG_ATTLIST:
state = INTAG_ATTLIST;
break;
default:
if (initialTokenType < -1024) { // INTERNAL_IN_COMMENT -
// prevState
int main = -(-initialTokenType & 0xffffff00);
switch (main) {
default: // Should never happen
case INTERNAL_IN_COMMENT:
state = COMMENT;
break;
}
prevState = -initialTokenType & 0xff;
} else { // Shouldn't happen
state = YYINITIAL;
}
}
start = text.offset;
s = text;
try {
yyreset(zzReader);
yybegin(state);
return yylex();
} catch (IOException ioe) {
ioe.printStackTrace();
return new TokenImpl();
}
}
/**
* 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 DtdTokenMaker(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 DtdTokenMaker(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 < 138) {
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
*/
@Override
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: {
addToken(Token.IDENTIFIER);
}
case 16:
break;
case 2: {
addToken(Token.WHITESPACE);
}
case 17:
break;
case 1: {
/* Not really valid */ addToken(Token.IDENTIFIER);
}
case 18:
break;
case 12: {
int temp = zzStartRead;
addToken(start, zzStartRead - 1, Token.MARKUP_COMMENT);
addHyperlinkToken(temp, zzMarkedPos - 1, Token.MARKUP_COMMENT);
start = zzMarkedPos;
}
case 19:
break;
case 9: {
addToken(Token.MARKUP_TAG_DELIMITER);
yybegin(INTAG_START);
}
case 20:
break;
case 6: {
addToken(Token.MARKUP_TAG_DELIMITER);
yybegin(YYINITIAL);
}
case 21:
break;
case 10: {
int temp = zzMarkedPos;
addToken(start, zzStartRead + 2, Token.MARKUP_COMMENT);
start = temp;
yybegin(prevState);
}
case 22:
break;
case 11: {
start = zzStartRead;
prevState = zzLexicalState;
yybegin(COMMENT);
}
case 23:
break;
case 7: {
addToken(Token.MARKUP_TAG_ATTRIBUTE);
}
case 24:
break;
case 15: {
addToken(Token.MARKUP_TAG_NAME);
yybegin(INTAG_ATTLIST);
}
case 25:
break;
case 14: {
addToken(Token.MARKUP_TAG_NAME);
yybegin(INTAG_ELEMENT);
}
case 26:
break;
case 13: {
addToken(Token.MARKUP_PROCESSING_INSTRUCTION);
}
case 27:
break;
case 4: {}
case 28:
break;
case 5: {
addToken(start, zzStartRead - 1, Token.MARKUP_COMMENT);
addEndToken(INTERNAL_IN_COMMENT - prevState);
return firstToken;
}
case 29:
break;
case 8: {
addToken(Token.MARKUP_TAG_ATTRIBUTE_VALUE);
}
case 30:
break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
switch (zzLexicalState) {
case INTAG_START: {
addEndToken(INTERNAL_INTAG_START);
return firstToken;
}
case 71:
break;
case INTAG_ELEMENT: {
addEndToken(INTERNAL_INTAG_ELEMENT);
return firstToken;
}
case 72:
break;
case YYINITIAL: {
addNullToken();
return firstToken;
}
case 73:
break;
case INTAG_ATTLIST: {
addEndToken(INTERNAL_INTAG_ATTLIST);
return firstToken;
}
case 74:
break;
case COMMENT: {
addToken(start, zzStartRead - 1, Token.MARKUP_COMMENT);
addEndToken(INTERNAL_IN_COMMENT - prevState);
return firstToken;
}
case 75:
break;
default:
return null;
}
} else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}