565 lines
18 KiB
Java
565 lines
18 KiB
Java
// created by jay 0.8 (c) 1998 Axel.Schreiner@informatik.uni-osnabrueck.de
|
|
|
|
// line 2 "browserparser.jay"
|
|
class browserparser {
|
|
// line 6 "-"
|
|
yyError yytemperror = new yyError();
|
|
public final int yyErrorCode = yytemperror.tokennr;
|
|
|
|
/** thrown for irrecoverable syntax errors and stack overflow.
|
|
*/
|
|
public static class yyException extends java.lang.Exception {
|
|
public yyException (String message) {
|
|
super(message);
|
|
}
|
|
}
|
|
|
|
/** must be implemented by a scanner object to supply input to the parser.
|
|
*/
|
|
public interface yyInput {
|
|
/** move on to next token.
|
|
@return false if positioned beyond tokens.
|
|
@throws IOException on input error.
|
|
*/
|
|
/** modified by diho, 10.04.2004 */
|
|
yyTokenclass advance () throws java.io.IOException;
|
|
/** classifies current token.
|
|
Should not be called if advance() returned false.
|
|
@return current %token or single character.
|
|
*/
|
|
/** modified by diho, 10.04.2004 token () is not longer necessary,
|
|
advance () supplies token or null
|
|
int token (); */
|
|
|
|
|
|
/** associated with current token.
|
|
Should not be called if advance() returned false.
|
|
@return value for token().
|
|
*/
|
|
/** modified by diho, 10.04.2004 value () is not longer necessary,
|
|
Token value can be retrieved from Token itself.
|
|
Object value ();*/
|
|
}
|
|
|
|
/** simplified error message.
|
|
@see <a href="#yyerror(java.lang.String, java.lang.String[])">yyerror</a>
|
|
*/
|
|
public void yyerror (String message) {
|
|
yyerror(message, null);
|
|
}
|
|
|
|
/** (syntax) error message.
|
|
Can be overwritten to control message format.
|
|
@param message text to be displayed.
|
|
@param expected vector of acceptable tokens, if available.
|
|
*/
|
|
public void yyerror (String message, String[] expected) {
|
|
if (expected != null && expected.length > 0) {
|
|
System.err.print(message+", expecting");
|
|
for (int n = 0; n < expected.length; ++ n)
|
|
System.err.print(" "+expected[n]);
|
|
System.err.println();
|
|
} else
|
|
System.err.println(message);
|
|
}
|
|
|
|
/** debugging support, requires the package jay.yydebug.
|
|
Set to null to suppress debugging messages.
|
|
*/
|
|
//t protected jay.yydebug.yyDebug yydebug;
|
|
|
|
protected static final int yyFinal = 2;
|
|
|
|
/** index-checked interface to yyName[].
|
|
@param token single character or %token value.
|
|
@return token name or [illegal] or [unknown].
|
|
*/
|
|
//t public static final String yyname (int token) {
|
|
//t if (token < 0 || token > YyNameClass.yyName.length) return "[illegal]";
|
|
//t String name;
|
|
//t if ((name = YyNameClass.yyName[token]) != null) return name;
|
|
//t return "[unknown]";
|
|
//t }
|
|
|
|
/** computes list of expected tokens on error by tracing the tables.
|
|
@param state for which to compute the list.
|
|
@return list of token names.
|
|
*/
|
|
protected String[] yyExpecting (int state) {
|
|
int token, n, len = 0;
|
|
boolean[] ok = new boolean[YyNameClass.yyName.length];
|
|
|
|
if ((n = YySindexClass.yySindex[state]) != 0)
|
|
for (token = n < 0 ? -n : 0;
|
|
token < YyNameClass.yyName.length && n+token < YyTableClass.yyTable.length; ++ token)
|
|
if (YyCheckClass.yyCheck[n+token] == token && !ok[token] && YyNameClass.yyName[token] != null) {
|
|
++ len;
|
|
ok[token] = true;
|
|
}
|
|
if ((n = YyRindexClass.yyRindex[state]) != 0)
|
|
for (token = n < 0 ? -n : 0;
|
|
token < YyNameClass.yyName.length && n+token < YyTableClass.yyTable.length; ++ token)
|
|
if (YyCheckClass.yyCheck[n+token] == token && !ok[token] && YyNameClass.yyName[token] != null) {
|
|
++ len;
|
|
ok[token] = true;
|
|
}
|
|
|
|
String result[] = new String[len];
|
|
for (n = token = 0; n < len; ++ token)
|
|
if (ok[token]) result[n++] = YyNameClass.yyName[token];
|
|
return result;
|
|
}
|
|
|
|
/** the generated parser, with debugging messages.
|
|
Maintains a state and a value stack, currently with fixed maximum size.
|
|
@param yyLex scanner.
|
|
@param yydebug debug message writer implementing yyDebug, or null.
|
|
@return result of the last reduction, if any.
|
|
@throws yyException on irrecoverable parse error.
|
|
*/
|
|
public Object yyparse (yyInput yyLex, Object yydebug)
|
|
throws java.io.IOException, yyException {
|
|
//t this.yydebug = (jay.yydebug.yyDebug)yydebug;
|
|
return yyparse(yyLex);
|
|
}
|
|
|
|
/** initial size and increment of the state/value stack [default 256].
|
|
This is not final so that it can be overwritten outside of invocations
|
|
of yyparse().
|
|
*/
|
|
protected int yyMax;
|
|
|
|
/** executed at the beginning of a reduce action.
|
|
Used as $$ = yyDefault($1), prior to the user-specified action, if any.
|
|
Can be overwritten to provide deep copy, etc.
|
|
@param first value for $1, or null.
|
|
@return first.
|
|
*/
|
|
protected Object yyDefault (Object first) {
|
|
return first;
|
|
}
|
|
|
|
/** the generated parser.
|
|
Maintains a state and a value stack, currently with fixed maximum size.
|
|
@param yyLex scanner.
|
|
@return result of the last reduction, if any.
|
|
@throws yyException on irrecoverable parse error.
|
|
*/
|
|
public Object yyparse (yyInput yyLex)
|
|
throws java.io.IOException, yyException {
|
|
YyCheckClass.yyCheckInit(); // initial yyCheck eingefuegt PL 05-03-08
|
|
YyTableClass.yyTableInit(); // initial yyCheck eingefuegt PL 05-03-08
|
|
if (yyMax <= 0) yyMax = 256; // initial size
|
|
int yyState = 0, yyStates[] = new int[yyMax]; // state stack
|
|
Object yyVal = null, yyVals[] = new Object[yyMax]; // value stack
|
|
/*modified by diho, 14.04.2004
|
|
orig: int yyToken = -1 was replaced by "empty Token"*/
|
|
yyTokenclass yyToken = new yyTokenclass(); // current input
|
|
int yyErrorFlag = 0; // #tks to shift
|
|
|
|
yyLoop: for (int yyTop = 0;; ++ yyTop) {
|
|
if (yyTop >= yyStates.length) { // dynamically increase
|
|
int[] i = new int[yyStates.length+yyMax];
|
|
System.arraycopy(yyStates, 0, i, 0, yyStates.length);
|
|
yyStates = i;
|
|
Object[] o = new Object[yyVals.length+yyMax];
|
|
System.arraycopy(yyVals, 0, o, 0, yyVals.length);
|
|
yyVals = o;
|
|
}
|
|
yyStates[yyTop] = yyState;
|
|
yyVals[yyTop] = yyVal;
|
|
//t if (yydebug != null) yydebug.push(yyState, yyVal);
|
|
|
|
yyDiscarded: for (;;) { // discarding a token does not change stack
|
|
int yyN;
|
|
if ((yyN = YyDefRedClass.yyDefRed[yyState]) == 0) { // else [default] reduce (yyN)
|
|
/* modified by diho, 14.04.2004
|
|
if "empty token", get next token */
|
|
if (yyToken.tokennr <0) {
|
|
/* modified by diho, 10.04.2004
|
|
call yyLex.advance in any case, check if yyToken is EOF */
|
|
yyToken = yyLex.advance(); /*? yyLex.token() : 0;*/
|
|
/* modified by diho, 27.04.2004
|
|
if "null", create EOF token */
|
|
if (yyToken == null) {yyToken = new EOF();}
|
|
|
|
//t if (yydebug != null)
|
|
//t /* modified by diho, 14.04.2004
|
|
//t orig.: yydebug.lex(yyState, yyToken, yyname(yyToken), yyLex.value()); */
|
|
//t yydebug.lex(yyState, yyToken.tokennr, yyname(yyToken.tokennr), yyToken.value);
|
|
}
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyToken by yyToken.tokennr*/
|
|
if ((yyN = YySindexClass.yySindex[yyState]) != 0 && (yyN += yyToken.tokennr) >= 0
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyToken by yyToken.tokennr*/
|
|
&& yyN < YyTableClass.yyTable.length && YyCheckClass.yyCheck[yyN] == yyToken.tokennr) {
|
|
//t if (yydebug != null)
|
|
//t yydebug.shift(yyState, YyTableClass.yyTable[yyN], yyErrorFlag-1);
|
|
yyState = YyTableClass.yyTable[yyN]; // shift to yyN
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyLex.value() by yyToken.value*/
|
|
yyVal = yyToken.value;
|
|
/* modified by diho, 14.04.2004
|
|
orig: yyToken = -1 */
|
|
yyToken = new yyTokenclass();
|
|
if (yyErrorFlag > 0) -- yyErrorFlag;
|
|
continue yyLoop;
|
|
}
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyToken by yyToken.tokennr*/
|
|
if ((yyN = YyRindexClass.yyRindex[yyState]) != 0 && (yyN += yyToken.tokennr) >= 0
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyToken by yyToken.tokennr*/
|
|
&& yyN < YyTableClass.yyTable.length && YyCheckClass.yyCheck[yyN] == yyToken.tokennr)
|
|
yyN = YyTableClass.yyTable[yyN]; // reduce (yyN)
|
|
else
|
|
switch (yyErrorFlag) {
|
|
|
|
case 0:
|
|
yyerror("syntax error", yyExpecting(yyState));
|
|
//t if (yydebug != null) yydebug.error("syntax error");
|
|
|
|
case 1: case 2:
|
|
yyErrorFlag = 3;
|
|
do {
|
|
if ((yyN = YySindexClass.yySindex[yyStates[yyTop]]) != 0
|
|
&& (yyN += yyErrorCode) >= 0 && yyN < YyTableClass.yyTable.length
|
|
&& YyCheckClass.yyCheck[yyN] == yyErrorCode) {
|
|
//t if (yydebug != null)
|
|
//t yydebug.shift(yyStates[yyTop], YyTableClass.yyTable[yyN], 3);
|
|
yyState = YyTableClass.yyTable[yyN];
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyLex.value by yyToken.value*/
|
|
yyVal = yyToken.value;
|
|
continue yyLoop;
|
|
}
|
|
//t if (yydebug != null) yydebug.pop(yyStates[yyTop]);
|
|
} while (-- yyTop >= 0);
|
|
//t if (yydebug != null) yydebug.reject();
|
|
throw new yyException("irrecoverable syntax error");
|
|
|
|
case 3:
|
|
/* modified by diho, 14.04.2004
|
|
orig.: if (yyToken == 0)*/
|
|
if (yyToken == null) {
|
|
//t if (yydebug != null) yydebug.reject();
|
|
throw new yyException("irrecoverable syntax error at end-of-file");
|
|
}
|
|
//t if (yydebug != null)
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyToken by yyToken.tokennr, yyLex.value by yyToken.value*/
|
|
//t yydebug.discard(yyState, yyToken.tokennr, yyname(yyToken.tokennr),
|
|
//t yyToken.value);
|
|
/* modified by diho, 14.04.2004
|
|
orig: yyToken = -1*/
|
|
yyToken = new yyTokenclass();
|
|
continue yyDiscarded; // leave stack alone
|
|
}
|
|
}
|
|
int yyV = yyTop + 1-YyLenClass.yyLen[yyN];
|
|
//t if (yydebug != null)
|
|
//t yydebug.reduce(yyState, yyStates[yyV-1], yyN, YyRuleClass.yyRule[yyN], YyLenClass.yyLen[yyN]);
|
|
yyVal = yyDefault(yyV > yyTop ? null : yyVals[yyV]);
|
|
switch (yyN) {
|
|
case 1:
|
|
// line 14 "browserparser.jay"
|
|
{}
|
|
break;
|
|
case 2:
|
|
// line 15 "browserparser.jay"
|
|
{}
|
|
break;
|
|
case 3:
|
|
// line 16 "browserparser.jay"
|
|
{}
|
|
break;
|
|
case 4:
|
|
// line 17 "browserparser.jay"
|
|
{}
|
|
break;
|
|
case 5:
|
|
// line 18 "browserparser.jay"
|
|
{}
|
|
break;
|
|
// line 286 "-"
|
|
}
|
|
yyTop -= YyLenClass.yyLen[yyN];
|
|
yyState = yyStates[yyTop];
|
|
int yyM = YyLhsClass.yyLhs[yyN];
|
|
if (yyState == 0 && yyM == 0) {
|
|
//t if (yydebug != null) yydebug.shift(0, yyFinal);
|
|
yyState = yyFinal;
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyToken by yyToken.tokennr*/
|
|
if (yyToken.tokennr < 0) {
|
|
/** modified by diho, 10.04.2004
|
|
*/
|
|
yyToken = yyLex.advance(); /* ? yyLex.token() : 0;*/
|
|
/* modified by diho, 14.04.2004
|
|
if "empty token", get next token */
|
|
if (yyToken == null) {yyToken = new EOF();}
|
|
//t if (yydebug != null)
|
|
/* modified by diho, 14.04.2004
|
|
replaced yyToken by yyToken.tokennr, yyLex.value() by yyToken.value*/
|
|
//t yydebug.lex(yyState, yyToken.tokennr,yyname(yyToken.tokennr), yyToken.value);
|
|
}
|
|
/* modified by diho, 14.04.2004
|
|
orig.: if (yyToken == 0) */
|
|
if (yyToken.tokennr == 0) {
|
|
//t if (yydebug != null) yydebug.accept(yyVal);
|
|
return yyVal;
|
|
}
|
|
continue yyLoop;
|
|
}
|
|
if ((yyN = YyGindexClass.yyGindex[yyM]) != 0 && (yyN += yyState) >= 0
|
|
&& yyN < YyTableClass.yyTable.length && YyCheckClass.yyCheck[yyN] == yyState)
|
|
yyState = YyTableClass.yyTable[yyN];
|
|
else
|
|
yyState = YyDgotoClass.yyDgoto[yyM];
|
|
//t if (yydebug != null) yydebug.shift(yyStates[yyTop], yyState);
|
|
continue yyLoop;
|
|
}
|
|
}
|
|
}
|
|
|
|
protected static final class YyLhsClass {
|
|
|
|
public static final short yyLhs [] = { -1,
|
|
0, 1, 1, 1, 1,
|
|
};
|
|
} /* End of class YyLhsClass */
|
|
|
|
protected static final class YyLenClass {
|
|
|
|
public static final short yyLen [] = { 2,
|
|
5, 1, 1, 1, 1,
|
|
};
|
|
} /* End class YyLenClass */
|
|
|
|
protected static final class YyDefRedClass {
|
|
|
|
public static final short yyDefRed [] = { 0,
|
|
0, 0, 0, 2, 3, 4, 5, 0, 0, 1,
|
|
};
|
|
} /* End of class YyDefRedClass */
|
|
|
|
protected static final class YyDgotoClass {
|
|
|
|
public static final short yyDgoto [] = { 2,
|
|
8,
|
|
};
|
|
} /* End of class YyDgotoClass */
|
|
|
|
protected static final class YySindexClass {
|
|
|
|
public static final short yySindex [] = { -254,
|
|
-255, 0, -261, 0, 0, 0, 0, -253, -251, 0,
|
|
};
|
|
} /* End of class YySindexClass */
|
|
|
|
protected static final class YyRindexClass {
|
|
|
|
public static final short yyRindex [] = { 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
};
|
|
} /* End of class YyRindexClass */
|
|
|
|
protected static final class YyGindexClass {
|
|
|
|
public static final short yyGindex [] = { 0,
|
|
0,
|
|
};
|
|
} /* End of class YyGindexClass */
|
|
|
|
protected static class yyTable0 {
|
|
protected static final short yyTable0 [] = { 4,
|
|
5, 6, 7, 1, 3, 0, 9, 10,
|
|
};
|
|
}
|
|
protected static final class YyTableClass {
|
|
|
|
static short[] yyTable = new short[9];
|
|
protected static void yyTableInit () {
|
|
int numyycheck;
|
|
int yyTableerun = 0;
|
|
for (numyycheck = 0; numyycheck <= 1000; numyycheck++) {
|
|
if (yyTableerun < 9) {
|
|
yyTable[yyTableerun] = yyTable0.yyTable0[numyycheck];
|
|
yyTableerun++;
|
|
}
|
|
}
|
|
}
|
|
} /* End of class YyTableClass */
|
|
|
|
protected static class yyCheck0 {
|
|
protected static final short yyCheck0 [] = { 261,
|
|
262, 263, 264, 258, 260, -1, 260, 259,
|
|
};
|
|
}
|
|
protected static final class YyCheckClass {
|
|
|
|
static short[] yyCheck = new short[9];
|
|
protected static void yyCheckInit () {
|
|
int numyycheck;
|
|
int yyCheckerun = 0;
|
|
for (numyycheck = 0; numyycheck <= 1000; numyycheck++) {
|
|
if (yyCheckerun < 9) {
|
|
yyCheck[yyCheckerun] = yyCheck0.yyCheck0[numyycheck];
|
|
yyCheckerun++;
|
|
}
|
|
}
|
|
|
|
};
|
|
} /* End of class YyCheckClass */
|
|
|
|
|
|
//t protected static final class YyRuleClass {
|
|
|
|
//t public static final String yyRule [] = {
|
|
//t "$accept : S",
|
|
//t "S : AUFKLAMMER NUM OPERATION NUM ZUKLAMMER",
|
|
//t "OPERATION : ADDITION",
|
|
//t "OPERATION : SUBTRA",
|
|
//t "OPERATION : MULTI",
|
|
//t "OPERATION : DIV",
|
|
//t };
|
|
//t } /* End of class YyRuleClass */
|
|
|
|
protected static final class YyNameClass {
|
|
|
|
public static final String yyName [] = {
|
|
"end-of-file",null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,null,null,null,null,null,null,null,
|
|
null,null,null,null,null,null,null,"WS","AUFKLAMMER","ZUKLAMMER",
|
|
"NUM","ADDITION","SUBTRA","MULTI","DIV",
|
|
};
|
|
} /* End of class YyNameClass */
|
|
|
|
|
|
// line 20 "browserparser.jay"
|
|
}
|
|
// line 468 "-"
|
|
class yyTokenclass {
|
|
public int tokennr;
|
|
public Object value;
|
|
|
|
yyTokenclass () {
|
|
this.tokennr=-1;
|
|
}
|
|
yyTokenclass (Object o) {
|
|
this.value = o;
|
|
}
|
|
}
|
|
class EOF extends yyTokenclass {
|
|
|
|
EOF () {
|
|
super();
|
|
this.tokennr=0;
|
|
}
|
|
}
|
|
// %token constants
|
|
|
|
final class WS extends yyTokenclass {
|
|
WS(Object o) {
|
|
super(o);
|
|
this.tokennr = 257;
|
|
}
|
|
WS() {
|
|
super();
|
|
this.tokennr = 257;
|
|
}
|
|
}
|
|
final class AUFKLAMMER extends yyTokenclass {
|
|
AUFKLAMMER(Object o) {
|
|
super(o);
|
|
this.tokennr = 258;
|
|
}
|
|
AUFKLAMMER() {
|
|
super();
|
|
this.tokennr = 258;
|
|
}
|
|
}
|
|
final class ZUKLAMMER extends yyTokenclass {
|
|
ZUKLAMMER(Object o) {
|
|
super(o);
|
|
this.tokennr = 259;
|
|
}
|
|
ZUKLAMMER() {
|
|
super();
|
|
this.tokennr = 259;
|
|
}
|
|
}
|
|
final class NUM extends yyTokenclass {
|
|
NUM(Object o) {
|
|
super(o);
|
|
this.tokennr = 260;
|
|
}
|
|
NUM() {
|
|
super();
|
|
this.tokennr = 260;
|
|
}
|
|
}
|
|
final class ADDITION extends yyTokenclass {
|
|
ADDITION(Object o) {
|
|
super(o);
|
|
this.tokennr = 261;
|
|
}
|
|
ADDITION() {
|
|
super();
|
|
this.tokennr = 261;
|
|
}
|
|
}
|
|
final class SUBTRA extends yyTokenclass {
|
|
SUBTRA(Object o) {
|
|
super(o);
|
|
this.tokennr = 262;
|
|
}
|
|
SUBTRA() {
|
|
super();
|
|
this.tokennr = 262;
|
|
}
|
|
}
|
|
final class MULTI extends yyTokenclass {
|
|
MULTI(Object o) {
|
|
super(o);
|
|
this.tokennr = 263;
|
|
}
|
|
MULTI() {
|
|
super();
|
|
this.tokennr = 263;
|
|
}
|
|
}
|
|
final class DIV extends yyTokenclass {
|
|
DIV(Object o) {
|
|
super(o);
|
|
this.tokennr = 264;
|
|
}
|
|
DIV() {
|
|
super();
|
|
this.tokennr = 264;
|
|
}
|
|
}
|
|
final class yyError extends yyTokenclass {
|
|
yyError () {
|
|
super();
|
|
this.tokennr = 256;
|
|
}
|
|
}
|