/* The following code was generated by JFlex 1.4.1 on 5/3/06 3:19 PM */ package grammar; import java.util.*; /** * This class is a scanner generated by * JFlex 1.4.1 * on 5/3/06 3:19 PM from the specification file * Source/grammar/Yylex.jflex */ public 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 COMMENT = 2; public static final int NORMAL = 1; /** * Translates characters to character classes */ private static final char [] ZZ_CMAP = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 52, 15, 0, 13, 52, 56, 14, 42, 43, 50, 49, 0, 10, 11, 51, 3, 20, 20, 20, 5, 5, 5, 5, 4, 4, 0, 0, 53, 48, 54, 0, 0, 7, 7, 7, 12, 9, 12, 13, 13, 13, 13, 13, 8, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 6, 13, 13, 46, 16, 47, 52, 13, 0, 21, 17, 25, 34, 28, 18, 38, 31, 32, 13, 29, 27, 36, 19, 26, 37, 13, 24, 22, 23, 33, 39, 40, 35, 30, 41, 44, 55, 45, 0, 0 }; /** * 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\2\2\2\1\1\3\4\1\17\3\1\4"+ "\1\5\1\6\1\7\1\10\1\11\13\1\3\0\1\1"+ "\4\0\32\3\1\1\2\3\1\1\6\3\1\12\1\13"+ "\2\1\1\14\1\15\2\1\3\0\27\3\1\1\41\3"+ "\1\1\4\3\1\1\35\3"; private static int [] zzUnpackAction() { int [] result = new int[192]; 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\71\0\162\0\0\0\253\0\0\0\344\0\u011d"+ "\0\u0156\0\u018f\0\u01c8\0\u0201\0\u023a\0\u0273\0\u02ac\0\u02e5"+ "\0\u031e\0\u0357\0\u0390\0\u03c9\0\u0402\0\u043b\0\u0474\0\u04ad"+ "\0\u04e6\0\u051f\0\u0558\0\u0591\0\0\0\0\0\0\0\0"+ "\0\0\0\0\0\u05ca\0\u0603\0\u063c\0\u0675\0\u06ae\0\u06e7"+ "\0\u0720\0\u0759\0\u0792\0\u07cb\0\u0804\0\u083d\0\u0876\0\u08af"+ "\0\u08e8\0\u0921\0\u095a\0\u023a\0\u0993\0\u09cc\0\u0a05\0\u0a3e"+ "\0\u0a77\0\u0ab0\0\u0ae9\0\u0b22\0\u0b5b\0\u0b94\0\u0bcd\0\u0c06"+ "\0\u0c3f\0\u0c78\0\u0cb1\0\u0cea\0\u0d23\0\u0d5c\0\u0d95\0\u0dce"+ "\0\u0e07\0\u0e40\0\u0e79\0\u0eb2\0\u0eeb\0\u0f24\0\u0f5d\0\u0156"+ "\0\u0f96\0\u0fcf\0\u1008\0\u1041\0\u107a\0\u10b3\0\u10ec\0\u1125"+ "\0\u115e\0\0\0\0\0\u1197\0\u11d0\0\0\0\0\0\u1209"+ "\0\u1242\0\u127b\0\u12b4\0\u12ed\0\u1326\0\u135f\0\u1398\0\u13d1"+ "\0\u140a\0\u1443\0\u147c\0\u14b5\0\u14ee\0\u1527\0\u1560\0\u1599"+ "\0\u15d2\0\u160b\0\u1644\0\u167d\0\u16b6\0\u16ef\0\u1728\0\u1761"+ "\0\u179a\0\u17d3\0\u180c\0\u1845\0\u187e\0\u18b7\0\u18f0\0\u1929"+ "\0\u1962\0\u199b\0\u19d4\0\u1a0d\0\u1a46\0\u1a7f\0\u1ab8\0\u1af1"+ "\0\u1b2a\0\u1b63\0\u1b9c\0\u1bd5\0\u1c0e\0\u1c47\0\u1c80\0\u1cb9"+ "\0\u1cf2\0\u1d2b\0\u1d64\0\u1d9d\0\u1dd6\0\u1e0f\0\u1e48\0\u1e81"+ "\0\u1eba\0\u1ef3\0\u1f2c\0\u1f65\0\u1f9e\0\u1fd7\0\u2010\0\u2049"+ "\0\u2082\0\u20bb\0\u167d\0\u20f4\0\u212d\0\u2166\0\u219f\0\u21d8"+ "\0\u2211\0\u224a\0\u2283\0\u22bc\0\u22f5\0\u232e\0\u2367\0\u23a0"+ "\0\u23d9\0\u2412\0\u244b\0\u2484\0\u24bd\0\u24f6\0\u252f\0\u2568"+ "\0\u25a1\0\u25da\0\u2613\0\u264c\0\u2685\0\u26be\0\u26f7\0\u2730"; private static int [] zzUnpackRowMap() { int [] result = new int[192]; 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 = "\71\0\1\4\1\5\1\6\1\7\2\10\4\11\1\12"+ "\1\13\2\11\1\14\1\15\1\4\1\16\1\17\1\20"+ "\1\10\1\21\1\22\1\23\1\24\1\25\1\11\1\26"+ "\1\27\3\11\1\30\1\11\1\31\2\11\1\32\1\11"+ "\1\33\1\34\1\11\1\35\1\36\1\37\1\40\1\41"+ "\1\42\1\43\1\44\1\45\1\46\1\43\1\47\1\50"+ "\1\51\1\52\1\4\1\5\1\6\57\4\1\53\1\54"+ "\5\4\2\0\1\6\71\0\1\55\1\56\1\55\1\57"+ "\1\0\1\4\1\60\1\0\1\61\1\4\5\0\1\4"+ "\1\0\1\55\6\0\1\4\1\60\5\0\1\4\1\57"+ "\30\0\3\10\2\0\1\4\1\60\1\0\1\61\1\4"+ "\5\0\1\4\1\0\1\10\6\0\1\4\1\60\5\0"+ "\1\4\31\0\7\11\2\0\2\11\3\0\31\11\31\0"+ "\1\4\45\0\1\4\13\0\3\61\16\0\1\61\44\0"+ "\1\62\2\0\13\62\1\0\1\62\1\63\50\62\1\64"+ 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"\3\0\20\11\1\147\10\11\22\0\7\11\2\0\2\11"+ "\3\0\10\11\1\270\20\11\22\0\7\11\2\0\2\11"+ "\3\0\4\11\1\271\24\11\22\0\7\11\2\0\2\11"+ "\3\0\13\11\1\272\15\11\22\0\7\11\2\0\2\11"+ "\3\0\6\11\1\273\22\11\22\0\7\11\2\0\2\11"+ "\3\0\2\11\1\274\26\11\22\0\7\11\2\0\2\11"+ "\3\0\2\11\1\211\26\11\22\0\7\11\2\0\2\11"+ "\3\0\13\11\1\275\15\11\22\0\7\11\2\0\2\11"+ "\3\0\10\11\1\147\20\11\22\0\7\11\2\0\2\11"+ "\3\0\2\11\1\276\26\11\22\0\7\11\2\0\2\11"+ "\3\0\13\11\1\205\15\11\22\0\7\11\2\0\2\11"+ "\3\0\17\11\1\277\11\11\22\0\7\11\2\0\2\11"+ "\3\0\11\11\1\300\17\11\22\0\7\11\2\0\2\11"+ "\3\0\6\11\1\164\22\11\22\0\7\11\2\0\2\11"+ "\3\0\30\11\1\273\22\0\7\11\2\0\2\11\3\0"+ "\1\11\1\120\27\11\17\0"; private static int [] zzUnpackTrans() { int [] result = new int[10089]; 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 = "\1\10\2\0\1\11\1\1\1\11\26\1\6\11\13\1"+ "\3\0\1\1\4\0\44\1\2\11\2\1\2\11\2\1"+ "\3\0\134\1"; private static int [] zzUnpackAttribute() { int [] result = new int[192]; 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[] = new char[ZZ_BUFFERSIZE]; /** the textposition at the last accepting state */ private int zzMarkedPos; /** the textposition at the last state to be included in yytext */ private int zzPushbackPos; /** 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: */ final static String leftParenth = "("; final static String leftBrace = "{"; final static String leftBracket = "["; int line = 1; class IdentInfo { private String ident; public String ident() { return ident; } private Vector< Integer > lines = new Vector< Integer >(); public IdentInfo( String ident ) { this.ident = ident; } void addLine( int line ) { lines.addElement( new Integer( line ) ); } void print() { System.out.print( ident + ":" ); for ( int i = 0; i < lines.size(); i++ ) System.out.print( "\t" + lines.elementAt( i ) ); System.out.println(); } } class IdentTable { Vector< IdentInfo > table = new Vector< IdentInfo >(); public IdentInfo identInfo( int i ) { return ( IdentInfo ) table.elementAt( i ); } public int size() { return table.size(); } void addLine( String ident, int line ) { // System.out.println( "addLine( " + ident + ", " + line + " )" ); for ( int i = 0; i < size(); i++ ) { IdentInfo identInfo = identInfo( i ); int compare = identInfo.ident().compareTo( ident ); if ( compare == 0 ) { identInfo.addLine( line ); return; } else if ( compare > 0 ) { identInfo = new IdentInfo( ident ); table.insertElementAt( identInfo, i ); identInfo.addLine( line ); return; } } IdentInfo identInfo = new IdentInfo( ident ); table.insertElementAt( identInfo, size() ); identInfo.addLine( line ); } void print() { System.out.println( "Identifier Table" ); for ( int i = 0; i < size(); i++ ) { IdentInfo identInfo = identInfo( i ); identInfo.print(); } } } IdentTable identTable = new IdentTable(); void error( String s ) { System.err.println( line + ": " + s ); } Stack< String > stack = new Stack< String >(); void push( String symbol ) { stack.push( symbol ); } void pop( String left ) { while ( ! stack.empty() ) { String top = ( String ) stack.pop(); if ( top.equals( left ) ) return; error( "Incomplete " + top + "..." ); } error( "Missing " + left + "..." ); } public void finish() { while ( ! stack.empty() ) { String top = ( String ) stack.pop(); error( "Incomplete " + top + "..." ); } if ( yystate() != NORMAL ) error( "Incomplete /* ... " ); identTable.print(); } /** * 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 Yylex(java.io.Reader in) { yybegin( NORMAL ); 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 Yylex(java.io.InputStream in) { this(new java.io.InputStreamReader(in)); } /** * Refills the input buffer. * * @return false, 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; zzPushbackPos-= 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) { return true; } else { zzEndRead+= numRead; return false; } } /** * 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 * cannot be reused (internal buffer is discarded and lost). * Lexical state is set to ZZ_INITIAL. * * @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 = zzPushbackPos = 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 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 void 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; yychar+= zzMarkedPosL-zzStartRead; 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 8: { push( leftBracket ); } case 14: break; case 11: { yybegin( COMMENT ); } case 15: break; case 6: { push( leftBrace ); } case 16: break; case 4: { push( leftParenth ); } case 17: break; case 9: { pop( leftBracket ); } case 18: break; case 7: { pop( leftBrace ); } case 19: break; case 13: { error( "Nested /* ... " ); } case 20: break; case 10: { error( "Missing /* ..." ); } case 21: break; case 5: { pop( leftParenth ); } case 22: break; case 2: { line++; } case 23: break; case 3: { identTable.addLine( yytext(), line ); } case 24: break; case 12: { yybegin( NORMAL ); } case 25: break; case 1: { } case 26: break; default: if (zzInput == YYEOF && zzStartRead == zzCurrentPos) { zzAtEOF = true; { finish(); return; } } else { zzScanError(ZZ_NO_MATCH); } } } } }