This commit is contained in:
fangyidong
2008-11-25 13:25:49 +00:00
commit d65cf1822b
24 changed files with 2044 additions and 0 deletions

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/* The following code was generated by JFlex 1.4.2 on 2008-11-25 */
package org.json.simple.parser;
import org.json.simple.rope.Rope;
class Yylex {
/** This character denotes the end of file */
public static final int YYEOF = -1;
/** initial size of the lookahead buffer */
private static final int ZZ_BUFFERSIZE = 16384;
/** lexical states */
public static final int YYINITIAL = 0;
public static final int STRING_BEGIN = 2;
/**
* ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l
* ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l
* at the beginning of a line
* l is of the form l = 2*k, k a non negative integer
*/
private static final int ZZ_LEXSTATE[] = {
0, 0, 1, 1
};
/**
* Translates characters to character classes
*/
private static final String ZZ_CMAP_PACKED =
"\11\0\1\7\1\21\2\0\1\7\22\0\1\7\1\0\1\11\10\0"+
"\1\6\1\32\1\2\1\4\1\12\12\3\1\33\6\0\4\1\1\5"+
"\1\1\24\0\1\30\1\10\1\31\3\0\1\23\1\13\2\1\1\22"+
"\1\14\5\0\1\24\1\0\1\15\3\0\1\16\1\25\1\17\1\20"+
"\5\0\1\26\1\0\1\27\uff82\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 =
"\3\0\1\1\1\2\1\3\3\0\1\4\1\5\1\6"+
"\1\7\1\10\1\11\2\12\1\13\5\0\1\14\1\15"+
"\1\16\1\17\1\20\1\21\1\22\1\23\1\0\1\24"+
"\1\0\1\24\4\0\1\25\1\26\2\0\1\27";
private static int [] zzUnpackAction() {
int [] result = new int[44];
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;
}
/* 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"
};
/** 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[] = new char[ZZ_BUFFERSIZE];
/** 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;
/** number of newlines encountered up to the start of the matched text */
private int yyline;
/** the number of characters up to the start of the matched text */
private int yychar;
/**
* the number of characters from the last newline up to the start of the
* matched text
*/
private int yycolumn;
/**
* zzAtBOL == true <=> the scanner is currently at the beginning of a line
*/
private boolean zzAtBOL = true;
/** zzAtEOF == true <=> the scanner is at the EOF */
private boolean zzAtEOF;
/* user code: */
private Rope sb=new Rope();
/**
* 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.
*/
Yylex(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.
*/
Yylex(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 < 90) {
int count = packed.charAt(i++);
char value = packed.charAt(i++);
do map[j++] = value; while (--count > 0);
}
return map;
}
/**
* Refills the input buffer.
*
* @return <code>false</code>, iff there was new input.
*
* @exception java.io.IOException if any I/O-Error occurs
*/
private boolean zzRefill() throws java.io.IOException {
/* first: make room (if you can) */
if (zzStartRead > 0) {
System.arraycopy(zzBuffer, zzStartRead,
zzBuffer, 0,
zzEndRead-zzStartRead);
/* translate stored positions */
zzEndRead-= zzStartRead;
zzCurrentPos-= zzStartRead;
zzMarkedPos-= zzStartRead;
zzStartRead = 0;
}
/* is the buffer big enough? */
if (zzCurrentPos >= zzBuffer.length) {
/* if not: blow it up */
char newBuffer[] = new char[zzCurrentPos*2];
System.arraycopy(zzBuffer, 0, newBuffer, 0, zzBuffer.length);
zzBuffer = newBuffer;
}
/* finally: fill the buffer with new input */
int numRead = zzReader.read(zzBuffer, zzEndRead,
zzBuffer.length-zzEndRead);
if (numRead > 0) {
zzEndRead+= numRead;
return false;
}
// unlikely but not impossible: read 0 characters, but not at end of stream
if (numRead == 0) {
int c = zzReader.read();
if (c == -1) {
return true;
} else {
zzBuffer[zzEndRead++] = (char) c;
return false;
}
}
// numRead < 0
return true;
}
/**
* 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();
}
/**
* 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>ZZ_INITIAL</tt>.
*
* @param reader the new input stream
*/
public final void yyreset(java.io.Reader reader) {
zzReader = reader;
zzAtBOL = true;
zzAtEOF = false;
zzEndRead = zzStartRead = 0;
zzCurrentPos = zzMarkedPos = 0;
yyline = yychar = yycolumn = 0;
zzLexicalState = YYINITIAL;
}
/**
* 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 <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];
}
/**
* 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 Yytoken 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;
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;
}
else {
zzInput = zzBufferL[zzCurrentPosL++];
}
}
zzInput = zzCMapL[zzInput];
boolean zzIsFinal = false;
boolean zzNoLookAhead = false;
zzForNext: { switch (zzState) {
case 0:
switch (zzInput) {
case 2: zzState = 2; break zzForNext;
case 3: zzIsFinal = true; zzState = 3; break zzForNext;
case 7:
case 17: zzIsFinal = true; zzNoLookAhead = true; zzState = 4; break zzForNext;
case 9: zzIsFinal = true; zzNoLookAhead = true; zzState = 5; break zzForNext;
case 12: zzState = 6; break zzForNext;
case 13: zzState = 7; break zzForNext;
case 15: zzState = 8; break zzForNext;
case 22: zzIsFinal = true; zzNoLookAhead = true; zzState = 9; break zzForNext;
case 23: zzIsFinal = true; zzNoLookAhead = true; zzState = 10; break zzForNext;
case 24: zzIsFinal = true; zzNoLookAhead = true; zzState = 11; break zzForNext;
case 25: zzIsFinal = true; zzNoLookAhead = true; zzState = 12; break zzForNext;
case 26: zzIsFinal = true; zzNoLookAhead = true; zzState = 13; break zzForNext;
case 27: zzIsFinal = true; zzNoLookAhead = true; zzState = 14; break zzForNext;
default: break zzForAction;
}
case 1:
switch (zzInput) {
case 8: zzIsFinal = true; zzState = 16; break zzForNext;
case 9: zzIsFinal = true; zzNoLookAhead = true; zzState = 17; break zzForNext;
case 17: break zzForAction;
default: zzIsFinal = true; zzNoLookAhead = true; zzState = 15; break zzForNext;
}
case 2:
switch (zzInput) {
case 3: zzIsFinal = true; zzState = 3; break zzForNext;
default: break zzForAction;
}
case 3:
switch (zzInput) {
case 3: zzIsFinal = true; break zzForNext;
case 4: zzState = 18; break zzForNext;
case 5:
case 18: zzState = 19; break zzForNext;
default: break zzForAction;
}
case 6:
switch (zzInput) {
case 19: zzState = 20; break zzForNext;
default: break zzForAction;
}
case 7:
switch (zzInput) {
case 16: zzState = 21; break zzForNext;
default: break zzForAction;
}
case 8:
switch (zzInput) {
case 14: zzState = 22; break zzForNext;
default: break zzForAction;
}
case 16:
switch (zzInput) {
case 8: zzIsFinal = true; zzNoLookAhead = true; zzState = 23; break zzForNext;
case 9: zzIsFinal = true; zzNoLookAhead = true; zzState = 24; break zzForNext;
case 10: zzIsFinal = true; zzNoLookAhead = true; zzState = 25; break zzForNext;
case 11: zzIsFinal = true; zzNoLookAhead = true; zzState = 26; break zzForNext;
case 12: zzIsFinal = true; zzNoLookAhead = true; zzState = 27; break zzForNext;
case 13: zzIsFinal = true; zzNoLookAhead = true; zzState = 28; break zzForNext;
case 14: zzIsFinal = true; zzNoLookAhead = true; zzState = 29; break zzForNext;
case 15: zzIsFinal = true; zzNoLookAhead = true; zzState = 30; break zzForNext;
case 16: zzState = 31; break zzForNext;
default: break zzForAction;
}
case 18:
switch (zzInput) {
case 3: zzIsFinal = true; zzState = 32; break zzForNext;
default: break zzForAction;
}
case 19:
switch (zzInput) {
case 2:
case 6: zzState = 33; break zzForNext;
case 3: zzIsFinal = true; zzState = 34; break zzForNext;
default: break zzForAction;
}
case 20:
switch (zzInput) {
case 20: zzState = 35; break zzForNext;
default: break zzForAction;
}
case 21:
switch (zzInput) {
case 20: zzState = 36; break zzForNext;
default: break zzForAction;
}
case 22:
switch (zzInput) {
case 16: zzState = 37; break zzForNext;
default: break zzForAction;
}
case 31:
switch (zzInput) {
case 1:
case 3:
case 5:
case 11:
case 12:
case 18:
case 19: zzState = 38; break zzForNext;
default: break zzForAction;
}
case 32:
switch (zzInput) {
case 5:
case 18: zzState = 19; break zzForNext;
case 3: zzIsFinal = true; break zzForNext;
default: break zzForAction;
}
case 33:
switch (zzInput) {
case 3: zzIsFinal = true; zzState = 34; break zzForNext;
default: break zzForAction;
}
case 34:
switch (zzInput) {
case 3: zzIsFinal = true; break zzForNext;
default: break zzForAction;
}
case 35:
switch (zzInput) {
case 21: zzState = 37; break zzForNext;
default: break zzForAction;
}
case 36:
switch (zzInput) {
case 20: zzIsFinal = true; zzNoLookAhead = true; zzState = 39; break zzForNext;
default: break zzForAction;
}
case 37:
switch (zzInput) {
case 18: zzIsFinal = true; zzNoLookAhead = true; zzState = 40; break zzForNext;
default: break zzForAction;
}
case 38:
switch (zzInput) {
case 1:
case 3:
case 5:
case 11:
case 12:
case 18:
case 19: zzState = 41; break zzForNext;
default: break zzForAction;
}
case 41:
switch (zzInput) {
case 1:
case 3:
case 5:
case 11:
case 12:
case 18:
case 19: zzState = 42; break zzForNext;
default: break zzForAction;
}
case 42:
switch (zzInput) {
case 1:
case 3:
case 5:
case 11:
case 12:
case 18:
case 19: zzIsFinal = true; zzNoLookAhead = true; zzState = 43; break zzForNext;
default: break zzForAction;
}
default:
// if this is ever reached, there is a serious bug in JFlex
zzScanError(ZZ_UNKNOWN_ERROR);
break;
} }
if ( zzIsFinal ) {
zzAction = zzState;
zzMarkedPosL = zzCurrentPosL;
if ( zzNoLookAhead ) break zzForAction;
}
}
}
// store back cached position
zzMarkedPos = zzMarkedPosL;
switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
case 10:
{ sb.append(yytext());
}
case 24: break;
case 3:
{ sb.clear();yybegin(STRING_BEGIN);
}
case 25: break;
case 15:
{ sb.append('\b');
}
case 26: break;
case 5:
{ return new Yytoken(Yytoken.TYPE_RIGHT_BRACE,null);
}
case 27: break;
case 12:
{ sb.append('\\');
}
case 28: break;
case 20:
{ Double val=Double.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE,val);
}
case 29: break;
case 1:
{ Long val=Long.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE,val);
}
case 30: break;
case 7:
{ return new Yytoken(Yytoken.TYPE_RIGHT_SQUARE,null);
}
case 31: break;
case 18:
{ sb.append('\r');
}
case 32: break;
case 21:
{ return new Yytoken(Yytoken.TYPE_VALUE,null);
}
case 33: break;
case 14:
{ sb.append('/');
}
case 34: break;
case 9:
{ return new Yytoken(Yytoken.TYPE_COLON,null);
}
case 35: break;
case 11:
{ yybegin(YYINITIAL);return new Yytoken(Yytoken.TYPE_VALUE,sb.toString());
}
case 36: break;
case 13:
{ sb.append('"');
}
case 37: break;
case 4:
{ return new Yytoken(Yytoken.TYPE_LEFT_BRACE,null);
}
case 38: break;
case 16:
{ sb.append('\f');
}
case 39: break;
case 19:
{ sb.append('\t');
}
case 40: break;
case 6:
{ return new Yytoken(Yytoken.TYPE_LEFT_SQUARE,null);
}
case 41: break;
case 23:
{ int ch=Integer.parseInt(yytext().substring(2),16);
sb.append((char)ch);
}
case 42: break;
case 22:
{ Boolean val=Boolean.valueOf(yytext()); return new Yytoken(Yytoken.TYPE_VALUE,val);
}
case 43: break;
case 17:
{ sb.append('\n');
}
case 44: break;
case 8:
{ return new Yytoken(Yytoken.TYPE_COMMA,null);
}
case 45: break;
case 2:
{
}
case 46: break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
return null;
}
else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}