/* The following code was generated by JFlex 1.4.3 on 29-02-2012 11:11 */
/*
*
* This file is based on the flex files from RSyntaxTextArea.
*
* WwwFormTokenMaker.java - Generates tokens for HTTP request body syntax highlighting.
* Specifically to "application/x-www-form-urlencoded" body.
*
* Some code has been commented and other reordered to remove warnings.
*
*/
package org.zaproxy.zap.extension.httppanel.view.syntaxhighlight.lexers;
import javax.swing.text.Segment;
import org.fife.ui.rsyntaxtextarea.Token;
import org.fife.ui.rsyntaxtextarea.modes.AbstractMarkupTokenMaker;
/**
* A parser of HTTP request body application/x-www-form-urlencoded.
* @see <a href="http://www.w3.org/TR/html401/interact/forms.html#form-content-type">Form content types</a>
*
* This implementation was created using
* <a href="http://www.jflex.de/">JFlex</a> 1.4.3; 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 <code>AbstractTokenMaker</code>, 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.<p>
*
* The actual algorithm generated for scanning has, of course, not been
* modified.<p>
*
* If you wish to regenerate this file yourself, keep in mind the following:
* <ul>
* <li>The generated <code>WwwFormTokenMaker.java</code> file will contain two
* definitions of both <code>zzRefill</code> and <code>yyreset</code>.
* 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.</li>
* <li>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.</li>
* <li>You should NOT call <code>yylex()</code> on the generated scanner
* directly; rather, you should use <code>getTokenList</code> as you would
* with any other <code>TokenMaker</code> instance.</li>
* <li>You should remove the "throws" clause of the method <code>yylex</code> (also
* remove from the JavaDoc), as the exception is not thrown.</li>
* <li>Move the array brackets from variable name to type.</li>
* </ul>
*/
public class WwwFormTokenMaker extends AbstractMarkupTokenMaker {
public static final int YYEOF = -1;
private static final int ZZ_BUFFERSIZE = 16384;
public static final int ERROR = 2;
public static final int YYINITIAL = 0;
public static final int SEPARATOR = 6;
public static final int VALUE = 8;
public static final int NAME = 4;
private static final int[] ZZ_LEXSTATE = {
0, 0, 1, 1, 0, 0, 2, 2, 3, 3
};
private static final String ZZ_CMAP_PACKED =
"\12\0\1\0\32\0\1\5\1\2\3\0\1\6\1\3\1\0\2\6"+
"\1\0\12\4\3\0\1\1\3\0\6\4\24\6\4\0\1\6\1\0"+
"\6\4\24\6\uff85\0";
private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED);
private static final int [] ZZ_ACTION = zzUnpackAction();
private static final String ZZ_ACTION_PACKED_0 =
"\4\0\1\1\1\2\1\1\1\3\1\4\1\5\1\6"+
"\1\7\1\1\4\0";
private static int [] zzUnpackAction() {
int [] result = new int[17];
zzUnpackAction(ZZ_ACTION_PACKED_0, 0, 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;
}
private static final int [] ZZ_ROWMAP = zzUnpackRowMap();
private static final String ZZ_ROWMAP_PACKED_0 =
"\0\0\0\7\0\16\0\25\0\34\0\43\0\52\0\34"+
"\0\34\0\34\0\34\0\61\0\70\0\52\0\77\0\70"+
"\0\106";
private static int [] zzUnpackRowMap() {
int [] result = new int[17];
zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, 0, 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;
}
private static final int [] ZZ_TRANS = zzUnpackTrans();
private static final String ZZ_TRANS_PACKED_0 =
"\4\5\1\6\1\7\1\6\7\10\1\5\1\11\7\5"+
"\1\12\1\13\1\14\1\15\1\14\12\0\2\6\1\16"+
"\1\6\4\0\1\17\6\0\1\14\1\20\1\14\4\0"+
"\1\21\6\0\1\6\6\0\1\14\2\0";
private static int [] zzUnpackTrans() {
int [] result = new int[77];
zzUnpackTrans(ZZ_TRANS_PACKED_0, 0, 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 <code>aState</code>
*/
private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();
private static final String ZZ_ATTRIBUTE_PACKED_0 =
"\4\0\1\11\2\1\4\11\2\1\4\0";
private static int [] zzUnpackAttribute() {
int [] result = new int[17];
zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, 0, 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;
}
private java.io.Reader zzReader;
private int zzState;
private int zzLexicalState = YYINITIAL;
private char[] zzBuffer = new char[ZZ_BUFFERSIZE];
private int zzMarkedPos;
private int zzCurrentPos;
private int zzStartRead;
private int zzEndRead;
private boolean zzAtEOF;
/* user code: */
public WwwFormTokenMaker() {
super();
}
@Override
public boolean getCompleteCloseTags() {
return false;
}
/**
* Adds the token specified to the current linked list of tokens as an
* "end token;" that is, at <code>zzMarkedPos</code>.
*
* @param tokenType The token's type.
*/
private void addEndToken(int tokenType) {
addToken(zzMarkedPos,zzMarkedPos, tokenType);
}
private void addToken(int tokenType) {
addToken(zzStartRead, zzMarkedPos-1, tokenType);
}
private void addToken(int start, int end, int tokenType) {
int so = start + offsetShift;
addToken(zzBuffer, start,end, tokenType, so);
}
@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 <tt>false</tt>, as we never want "mark occurrences"
* working in "application/x-www-form-urlencoded" body.
*
* @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 <code>text</code>. 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
* <code>text</code> starts.
* @return The first <code>Token</code> 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;
// Start off in the proper state.
s = text;
yyreset(zzReader);
yybegin(YYINITIAL);
return yylex();
}
/**
* Refills the input buffer.
*
* @return <code>true</code> if EOF was reached, otherwise
* <code>false</code>.
*/
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
* <b>cannot</b> be reused (internal buffer is discarded and lost).
* Lexical state is set to <tt>YY_INITIAL</tt>.
*
* @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;
}
public WwwFormTokenMaker(java.io.Reader in) {
this.zzReader = in;
}
public WwwFormTokenMaker(java.io.InputStream in) {
this(new java.io.InputStreamReader(in));
}
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 < 46) {
int count = packed.charAt(i++);
char value = packed.charAt(i++);
do map[j++] = value; while (--count > 0);
}
return map;
}
public final void yyclose() throws java.io.IOException {
zzAtEOF = true; /* indicate end of file */
zzEndRead = zzStartRead; /* invalidate buffer */
if (zzReader != null)
zzReader.close();
}
public final int yystate() {
return zzLexicalState;
}
@Override
public final void yybegin(int newState) {
zzLexicalState = newState;
}
public final String yytext() {
return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead );
}
/**
* Returns the character at position <tt>pos</tt> 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];
}
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);
}
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
*/
public org.fife.ui.rsyntaxtextarea.Token yylex() {
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 = ZZ_LEXSTATE[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;
}
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 1:
{ addToken(Token.IDENTIFIER); yybegin(ERROR);
}break;
case 2:
{ addToken(Token.RESERVED_WORD); yybegin(SEPARATOR);
}break;
case 3:
{ addToken(Token.IDENTIFIER);
}break;
case 4:
{ addToken(Token.SEPARATOR); yybegin(VALUE);
}break;
case 5:
{ addToken(Token.VARIABLE); yybegin(NAME);
}break;
case 6:
{ addToken(Token.COMMENT_DOCUMENTATION);
}break;
case 7:
{ addToken(Token.DATA_TYPE);
}break;
case 8:
case 9:
case 10:
case 11:
case 12:
case 13:
case 14: break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
switch (zzLexicalState) {
case YYINITIAL:
case ERROR:
case NAME:
case SEPARATOR:
case VALUE:
addNullToken(); return firstToken;
case 18:
case 19:
case 20:
case 21:
case 22: break;
default:
return null;
}
}
else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}