/* The following code was generated by JFlex 1.4.1 on 7/11/07 6:16 PM */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* ListScanner.java *
* This file is generated from listScanner.flex. Please edit that file if *
* you wish to make changes. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
package eug.parser;
import java.util.List;
import java.util.ArrayList;
/**
* This scanner parses list items from something like:
* <code>
* "New Zealand"#Important
* Ontario
* "Quebec" "British Columbia"
* </code>
* <p>
* This is an internal class, meant for use only by {@link EUGScanner}.
* @author Michael Myers
* @since EUGFile 1.01.00
*/
final class ListScanner {
/** This character denotes the end of file */
private static final int YYEOF = -1;
/** initial size of the lookahead buffer */
private static final int ZZ_BUFFERSIZE = 16384;
/** lexical states */
private static final int YYINITIAL = 0;
/**
* Translates characters to character classes
*/
private static final String ZZ_CMAP_PACKED =
"\10\0\2\2\1\3\2\0\1\3\22\0\1\2\1\0\1\5\1\4"+
"\3\0\1\1\5\0\1\1\1\1\1\0\12\1\7\0\33\1\1\0"+
"\1\1\1\0\1\1\1\0\32\1\55\0\1\1\1\0\1\1\11\0"+
"\2\1\4\0\1\1\5\0\27\1\1\0\37\1\1\0\u013f\1\31\0"+
"\162\1\4\0\14\1\16\0\5\1\11\0\1\1\213\0\1\1\13\0"+
"\1\1\1\0\3\1\1\0\1\1\1\0\24\1\1\0\54\1\1\0"+
"\46\1\1\0\5\1\4\0\202\1\10\0\105\1\1\0\46\1\2\0"+
"\2\1\6\0\20\1\41\0\46\1\2\0\1\1\7\0\47\1\110\0"+
"\33\1\5\0\3\1\56\0\32\1\5\0\13\1\43\0\2\1\1\0"+
"\143\1\1\0\1\1\17\0\2\1\7\0\2\1\12\0\3\1\2\0"+
"\1\1\20\0\1\1\1\0\36\1\35\0\3\1\60\0\46\1\13\0"+
"\1\1\u0152\0\66\1\3\0\1\1\22\0\1\1\7\0\12\1\43\0"+
"\10\1\2\0\2\1\2\0\26\1\1\0\7\1\1\0\1\1\3\0"+
"\4\1\3\0\1\1\36\0\2\1\1\0\3\1\16\0\2\1\23\0"+
"\6\1\4\0\2\1\2\0\26\1\1\0\7\1\1\0\2\1\1\0"+
"\2\1\1\0\2\1\37\0\4\1\1\0\1\1\23\0\3\1\20\0"+
"\11\1\1\0\3\1\1\0\26\1\1\0\7\1\1\0\2\1\1\0"+
"\5\1\3\0\1\1\22\0\1\1\17\0\2\1\43\0\10\1\2\0"+
"\2\1\2\0\26\1\1\0\7\1\1\0\2\1\1\0\5\1\3\0"+
"\1\1\36\0\2\1\1\0\3\1\17\0\1\1\21\0\1\1\1\0"+
"\6\1\3\0\3\1\1\0\4\1\3\0\2\1\1\0\1\1\1\0"+
"\2\1\3\0\2\1\3\0\3\1\3\0\10\1\1\0\3\1\113\0"+
"\10\1\1\0\3\1\1\0\27\1\1\0\12\1\1\0\5\1\46\0"+
"\2\1\43\0\10\1\1\0\3\1\1\0\27\1\1\0\12\1\1\0"+
"\5\1\3\0\1\1\40\0\1\1\1\0\2\1\43\0\10\1\1\0"+
"\3\1\1\0\27\1\1\0\20\1\46\0\2\1\43\0\22\1\3\0"+
"\30\1\1\0\11\1\1\0\1\1\2\0\7\1\72\0\60\1\1\0"+
"\2\1\14\0\7\1\72\0\2\1\1\0\1\1\2\0\2\1\1\0"+
"\1\1\2\0\1\1\6\0\4\1\1\0\7\1\1\0\3\1\1\0"+
"\1\1\1\0\1\1\2\0\2\1\1\0\4\1\1\0\2\1\11\0"+
"\1\1\2\0\5\1\1\0\1\1\25\0\2\1\42\0\1\1\77\0"+
"\10\1\1\0\42\1\35\0\4\1\164\0\42\1\1\0\5\1\1\0"+
"\2\1\45\0\6\1\112\0\46\1\12\0\51\1\7\0\132\1\5\0"+
"\104\1\5\0\122\1\6\0\7\1\1\0\77\1\1\0\1\1\1\0"+
"\4\1\2\0\7\1\1\0\1\1\1\0\4\1\2\0\47\1\1\0"+
"\1\1\1\0\4\1\2\0\37\1\1\0\1\1\1\0\4\1\2\0"+
"\7\1\1\0\1\1\1\0\4\1\2\0\7\1\1\0\7\1\1\0"+
"\27\1\1\0\37\1\1\0\1\1\1\0\4\1\2\0\7\1\1\0"+
"\47\1\1\0\23\1\105\0\125\1\14\0\u026c\1\2\0\10\1\12\0"+
"\32\1\5\0\113\1\25\0\15\1\1\0\4\1\16\0\22\1\16\0"+
"\22\1\16\0\15\1\1\0\3\1\17\0\64\1\43\0\1\1\4\0"+
"\1\1\103\0\130\1\10\0\51\1\127\0\35\1\63\0\36\1\2\0"+
"\5\1\u038b\0\154\1\224\0\234\1\4\0\132\1\6\0\26\1\2\0"+
"\6\1\2\0\46\1\2\0\6\1\2\0\10\1\1\0\1\1\1\0"+
"\1\1\1\0\1\1\1\0\37\1\2\0\65\1\1\0\7\1\1\0"+
"\1\1\3\0\3\1\1\0\7\1\3\0\4\1\2\0\6\1\4\0"+
"\15\1\5\0\3\1\1\0\7\1\164\0\1\1\15\0\1\1\202\0"+
"\1\1\4\0\1\1\2\0\12\1\1\0\1\1\3\0\5\1\6\0"+
"\1\1\1\0\1\1\1\0\1\1\1\0\4\1\1\0\3\1\1\0"+
"\7\1\3\0\3\1\5\0\5\1\u0ebb\0\2\1\52\0\5\1\5\0"+
"\2\1\4\0\126\1\6\0\3\1\1\0\132\1\1\0\4\1\5\0"+
"\50\1\4\0\136\1\21\0\30\1\70\0\20\1\u0200\0\u19b6\1\112\0"+
"\u51a6\1\132\0\u048d\1\u0773\0\u2ba4\1\u215c\0\u012e\1\2\0\73\1\225\0"+
"\7\1\14\0\5\1\5\0\1\1\1\0\12\1\1\0\15\1\1\0"+
"\5\1\1\0\1\1\1\0\2\1\1\0\2\1\1\0\154\1\41\0"+
"\u016b\1\22\0\100\1\2\0\66\1\50\0\14\1\164\0\5\1\1\0"+
"\207\1\44\0\32\1\6\0\32\1\13\0\131\1\3\0\6\1\2\0"+
"\6\1\2\0\6\1\2\0\3\1\43\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 =
"\1\0\1\1\1\2\2\3\1\1\1\0\1\4";
private static int [] zzUnpackAction() {
int [] result = new int[8];
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\6\0\14\0\22\0\30\0\36\0\36\0\6";
private static int [] zzUnpackRowMap() {
int [] result = new int[8];
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 [] = {
1, 2, 3, 3, 4, 5, -1, -1, -1, -1,
-1, -1, -1, 2, -1, -1, -1, -1, -1, -1,
3, 3, -1, -1, 4, 4, 4, -1, 4, 4,
6, 6, 6, 6, 6, 7,
};
/* 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 =
"\1\0\1\11\4\1\1\0\1\11";
private static int [] zzUnpackAttribute() {
int [] result = new int[8];
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: */
private static ListScanner scanner;
/**
* Returns the shared instance of <code>ListScanner</code>. If it has
* previously been created, it is reset with the given reader.
* <p>
* This method is used to keep from creating a new <code>ListScanner</code>
* every time a list is read. This greatly reduces overhead in creating
* the character tables, etc.
* @since EUGFile 1.03.00
*/
private static ListScanner getScanner(java.io.Reader reader) {
if (scanner == null) {
scanner = new ListScanner(reader);
} else {
scanner.yyreset(reader);
}
return scanner;
}
/**
* Parses an array of strings from the given string. This is like
* <code>str.split("\\s+")</code> except that it allows for quoted strings
* with whitespace enclosed.
* @param list the whitespace-delimited list of strings. Note that quoted
* and unquoted strings can be mixed freely.
* @return the array of strings.
* @see #parseList(String)
*/
static String[] parseArray(String list) {
try {
return getScanner(new java.io.StringReader(list)).parseArray();
} catch (Exception ex) {
System.err.println("Error reading list!");
ex.printStackTrace();
return null;
}
}
/**
* Parses a list of strings from the given string. This is like
* <code>str.split("\\s+")</code> except that it allows for quoted strings
* with whitespace enclosed and it returns a list.
* @param list the whitespace-delimited list of strings. Note that quoted
* and unquoted strings can be mixed freely.
* @return the list of strings.
* @see #parseArray(String)
*/
static List<String> parseList(String list) {
try {
return getScanner(new java.io.StringReader(list)).parseList();
} catch (Exception ex) {
System.err.println("Error reading list!");
ex.printStackTrace();
return null;
}
}
private String[] parseArray() throws java.io.IOException {
final List<String> list = new ArrayList<String>();
String tmp;
while ((tmp = yylex()) != null)
list.add(tmp);
return list.toArray(new String[list.size()]);
}
private List<String> parseList() throws java.io.IOException {
final List<String> list = new ArrayList<String>();
String tmp;
while ((tmp = yylex()) != null)
list.add(tmp);
return list;
}
private void badChar(char c) {
System.err.println("Illegal list character: \'" + c +
"\' (#" + Integer.toHexString((int)c) + ")");
}
/**
* 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.
*/
ListScanner(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.
*/
ListScanner(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 < 1152) {
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;
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.
*/
private 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
*/
private 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.
*/
private final int yystate() {
return zzLexicalState;
}
/**
* Enters a new lexical state
*
* @param newState the new lexical state
*/
private final void yybegin(int newState) {
zzLexicalState = newState;
}
/**
* Returns the text matched by the current regular expression.
*/
private 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
*/
private final char yycharat(int pos) {
return zzBuffer[zzStartRead+pos];
}
/**
* Returns the length of the matched text region.
*/
private 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()!
*/
private 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
*/
private String 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 4:
{ return yytext().substring(1, yylength() - 1);
}
case 5: break;
case 1:
{ badChar(yycharat(0)); return yylex();
}
case 6: break;
case 2:
{ return yytext();
}
case 7: break;
case 3:
{ break;
}
case 8: break;
default:
if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
zzAtEOF = true;
{ return null;
}
}
else {
zzScanError(ZZ_NO_MATCH);
}
}
}
}
}