diff --git a/EOF.class b/EOF.class
new file mode 100644
index 0000000..02a1bec
Binary files /dev/null and b/EOF.class differ
diff --git a/GETEILT.class b/GETEILT.class
new file mode 100644
index 0000000..9d00195
Binary files /dev/null and b/GETEILT.class differ
diff --git a/JLex2.jar b/JLex2.jar
new file mode 100644
index 0000000..4baf1f9
Binary files /dev/null and b/JLex2.jar differ
diff --git a/KLAMMERAUF.class b/KLAMMERAUF.class
new file mode 100644
index 0000000..38704b9
Binary files /dev/null and b/KLAMMERAUF.class differ
diff --git a/KLAMMERZU.class b/KLAMMERZU.class
new file mode 100644
index 0000000..420958c
Binary files /dev/null and b/KLAMMERZU.class differ
diff --git a/MAL.class b/MAL.class
new file mode 100644
index 0000000..ff226a3
Binary files /dev/null and b/MAL.class differ
diff --git a/MALKLAMMERAUF.class b/MALKLAMMERAUF.class
new file mode 100644
index 0000000..6c45ab8
Binary files /dev/null and b/MALKLAMMERAUF.class differ
diff --git a/MINUS.class b/MINUS.class
new file mode 100644
index 0000000..2ecde58
Binary files /dev/null and b/MINUS.class differ
diff --git a/Main.class b/Main.class
new file mode 100644
index 0000000..aa820e6
Binary files /dev/null and b/Main.class differ
diff --git a/Main.java b/Main.java
new file mode 100644
index 0000000..28a05db
--- /dev/null
+++ b/Main.java
@@ -0,0 +1,20 @@
+import java.io.FileNotFoundException;
+
+public class Main {
+public static void main (String [] args) {
+TschenrechnerScanner scanner;
+try {
+ scanner = new TschenrechnerScanner
+ (new java.io.FileReader("test"));
+} catch (FileNotFoundException e) {
+ scanner = new TschenrechnerScanner(new java.io.StringReader("digga"));
+}
+TschenrechnerParser parser = new TschenrechnerParser() ;
+try {
+parser.yyparse(scanner);
+}
+catch (Exception e) {
+e.printStackTrace();
+}
+}
+}
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c5dabdb
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,15 @@
+JAVAC = javac
+JAOOY = jaooy
+
+Main.class: Main.java yyTokenclass.class TschenrechnerScanner.class
+ $(JAVAC) Main.java
+yyTokenclass.class: TschenrechnerParser.java
+ $(JAVAC) TschenrechnerParser.java
+TschenrechnerScanner.class: TaschenrechnerLexer.java
+ $(JAVAC) TaschenrechnerLexer.java
+TaschenrechnerLexer.java: TaschenrechnerLexer
+ java -cp JLex2.jar JLex2.Main TaschenrechnerLexer
+TschenrechnerParser.java: TschenrechnerParser.jay skeleton.jaooy
+ $(JAOOY) -v TschenrechnerParser.jay < skeleton.jaooy > TschenrechnerParser.java
+clean:
+ rm -f *.class TaschenrechnerLexer.java TschenrechnerParser.java
\ No newline at end of file
diff --git a/PLUS.class b/PLUS.class
new file mode 100644
index 0000000..f0a4bd3
Binary files /dev/null and b/PLUS.class differ
diff --git a/TaschenrechnerLexer b/TaschenrechnerLexer
new file mode 100644
index 0000000..4e8e676
--- /dev/null
+++ b/TaschenrechnerLexer
@@ -0,0 +1,25 @@
+%%
+%jayscanner TschenrechnerScanner
+%jayparser TschenrechnerParser
+
+%class TaschenrechnerLexer
+%eofval{
+ System.out.println("ENd of file: gut gemacht");
+ return new EOF();
+%eofval}
+
+ws = [ \t\r\n\b\015]+
+%%
+
+"+" { return new PLUS(); }
+"*" { return new MAL(); }
+"-" { return new MINUS(); }
+"/" { return new GETEILT(); }
+"(" { return new KLAMMERAUF(); }
+")" { return new KLAMMERZU(); }
+[+|-]?[0-9][0-9]*("."[0-9]+)? { return new ZAHL();}
+[+|-]?[0-9][0-9]*("."[0-9]+)?"(" {return new KLAMMERAUF();}
+{ws} { }
+. {System.out.print("Fehler");}
+
+
diff --git a/TaschenrechnerLexer.class b/TaschenrechnerLexer.class
new file mode 100644
index 0000000..c68b65c
Binary files /dev/null and b/TaschenrechnerLexer.class differ
diff --git a/TaschenrechnerLexer.java b/TaschenrechnerLexer.java
new file mode 100644
index 0000000..c6ce1ce
--- /dev/null
+++ b/TaschenrechnerLexer.java
@@ -0,0 +1,348 @@
+
+
+class TaschenrechnerLexer {
+ private final int YY_BUFFER_SIZE = 512;
+ private final int YY_F = -1;
+ private final int YY_NO_STATE = -1;
+ private final int YY_NOT_ACCEPT = 0;
+ private final int YY_START = 1;
+ private final int YY_END = 2;
+ private final int YY_NO_ANCHOR = 4;
+ private final int YY_BOL = 128;
+ private final int YY_EOF = 129;
+ private java.io.BufferedReader yy_reader;
+ private int yy_buffer_index;
+ private int yy_buffer_read;
+ private int yy_buffer_start;
+ private int yy_buffer_end;
+ private char yy_buffer[];
+ private boolean yy_at_bol;
+ private int yy_lexical_state;
+
+ TaschenrechnerLexer (java.io.Reader reader) {
+ this ();
+ if (null == reader) {
+ throw (new Error("Error: Bad input stream initializer."));
+ }
+ yy_reader = new java.io.BufferedReader(reader);
+ }
+
+ TaschenrechnerLexer (java.io.InputStream instream) {
+ this ();
+ if (null == instream) {
+ throw (new Error("Error: Bad input stream initializer."));
+ }
+ yy_reader = new java.io.BufferedReader(new java.io.InputStreamReader(instream));
+ }
+
+ private TaschenrechnerLexer () {
+ yy_buffer = new char[YY_BUFFER_SIZE];
+ yy_buffer_read = 0;
+ yy_buffer_index = 0;
+ yy_buffer_start = 0;
+ yy_buffer_end = 0;
+ yy_at_bol = true;
+ yy_lexical_state = YYINITIAL;
+ }
+
+ private boolean yy_eof_done = false;
+ private final int YYINITIAL = 0;
+ private final int yy_state_dtrans[] = {
+ 0
+ };
+ private void yybegin (int state) {
+ yy_lexical_state = state;
+ }
+ private int yy_advance ()
+ throws java.io.IOException {
+ int next_read;
+ int i;
+ int j;
+
+ if (yy_buffer_index < yy_buffer_read) {
+ return yy_buffer[yy_buffer_index++];
+ }
+
+ if (0 != yy_buffer_start) {
+ i = yy_buffer_start;
+ j = 0;
+ while (i < yy_buffer_read) {
+ yy_buffer[j] = yy_buffer[i];
+ ++i;
+ ++j;
+ }
+ yy_buffer_end = yy_buffer_end - yy_buffer_start;
+ yy_buffer_start = 0;
+ yy_buffer_read = j;
+ yy_buffer_index = j;
+ next_read = yy_reader.read(yy_buffer,
+ yy_buffer_read,
+ yy_buffer.length - yy_buffer_read);
+ if (-1 == next_read) {
+ return YY_EOF;
+ }
+ yy_buffer_read = yy_buffer_read + next_read;
+ }
+
+ while (yy_buffer_index >= yy_buffer_read) {
+ if (yy_buffer_index >= yy_buffer.length) {
+ yy_buffer = yy_double(yy_buffer);
+ }
+ next_read = yy_reader.read(yy_buffer,
+ yy_buffer_read,
+ yy_buffer.length - yy_buffer_read);
+ if (-1 == next_read) {
+ return YY_EOF;
+ }
+ yy_buffer_read = yy_buffer_read + next_read;
+ }
+ return yy_buffer[yy_buffer_index++];
+ }
+ private void yy_move_end () {
+ if (yy_buffer_end > yy_buffer_start &&
+ '\n' == yy_buffer[yy_buffer_end-1])
+ yy_buffer_end--;
+ if (yy_buffer_end > yy_buffer_start &&
+ '\r' == yy_buffer[yy_buffer_end-1])
+ yy_buffer_end--;
+ }
+ private boolean yy_last_was_cr=false;
+ private void yy_mark_start () {
+ yy_buffer_start = yy_buffer_index;
+ }
+ private void yy_mark_end () {
+ yy_buffer_end = yy_buffer_index;
+ }
+ private void yy_to_mark () {
+ yy_buffer_index = yy_buffer_end;
+ yy_at_bol = (yy_buffer_end > yy_buffer_start) &&
+ ('\r' == yy_buffer[yy_buffer_end-1] ||
+ '\n' == yy_buffer[yy_buffer_end-1] ||
+ 2028/*LS*/ == yy_buffer[yy_buffer_end-1] ||
+ 2029/*PS*/ == yy_buffer[yy_buffer_end-1]);
+ }
+ private java.lang.String yytext () {
+ return (new java.lang.String(yy_buffer,
+ yy_buffer_start,
+ yy_buffer_end - yy_buffer_start));
+ }
+ private int yylength () {
+ return yy_buffer_end - yy_buffer_start;
+ }
+ private char[] yy_double (char buf[]) {
+ int i;
+ char newbuf[];
+ newbuf = new char[2*buf.length];
+ for (i = 0; i < buf.length; ++i) {
+ newbuf[i] = buf[i];
+ }
+ return newbuf;
+ }
+ private final int YY_E_INTERNAL = 0;
+ private final int YY_E_MATCH = 1;
+ private java.lang.String yy_error_string[] = {
+ "Error: Internal error.\n",
+ "Error: Unmatched input.\n"
+ };
+ private void yy_error (int code,boolean fatal) {
+ java.lang.System.out.print(yy_error_string[code]);
+ java.lang.System.out.flush();
+ if (fatal) {
+ throw new Error("Fatal Error.\n");
+ }
+ }
+ private int[][] unpackFromString(int size1, int size2, String st) {
+ int colonIndex = -1;
+ String lengthString;
+ int sequenceLength = 0;
+ int sequenceInteger = 0;
+
+ int commaIndex;
+ String workString;
+
+ int res[][] = new int[size1][size2];
+ for (int i= 0; i < size1; i++) {
+ for (int j= 0; j < size2; j++) {
+ if (sequenceLength != 0) {
+ res[i][j] = sequenceInteger;
+ sequenceLength--;
+ continue;
+ }
+ commaIndex = st.indexOf(',');
+ workString = (commaIndex==-1) ? st :
+ st.substring(0, commaIndex);
+ st = st.substring(commaIndex+1);
+ colonIndex = workString.indexOf(':');
+ if (colonIndex == -1) {
+ res[i][j]=Integer.parseInt(workString);
+ continue;
+ }
+ lengthString =
+ workString.substring(colonIndex+1);
+ sequenceLength=Integer.parseInt(lengthString);
+ workString=workString.substring(0,colonIndex);
+ sequenceInteger=Integer.parseInt(workString);
+ res[i][j] = sequenceInteger;
+ sequenceLength--;
+ }
+ }
+ return res;
+ }
+ private int yy_acpt[] = {
+ /* 0 */ YY_NOT_ACCEPT,
+ /* 1 */ YY_NO_ANCHOR,
+ /* 2 */ YY_NO_ANCHOR,
+ /* 3 */ YY_NO_ANCHOR,
+ /* 4 */ YY_NO_ANCHOR,
+ /* 5 */ YY_NO_ANCHOR,
+ /* 6 */ YY_NO_ANCHOR,
+ /* 7 */ YY_NO_ANCHOR,
+ /* 8 */ YY_NO_ANCHOR,
+ /* 9 */ YY_NO_ANCHOR,
+ /* 10 */ YY_NO_ANCHOR,
+ /* 11 */ YY_NO_ANCHOR,
+ /* 12 */ YY_NOT_ACCEPT,
+ /* 13 */ YY_NO_ANCHOR,
+ /* 14 */ YY_NO_ANCHOR
+ };
+ private int yy_cmap[] = unpackFromString(1,130,
+"11:8,10:3,11:2,10,11:18,10,11:7,5,6,2,1,11,3,9,4,8:10,11:66,7,11:3,0:2")[0];
+
+ private int yy_rmap[] = unpackFromString(1,15,
+"0,1,2,1,2,1:3,2,3,4,1,5,1,6")[0];
+
+ private int yy_nxt[][] = unpackFromString(7,12,
+"1,2,3,4,5,6,7,8,9,13,10,13,-1:20,9,-1:8,11,-1:2,9,12,-1:12,10,-1:9,14,-1:8," +
+"11,-1:2,14,-1:3");
+
+ public yyTokenclass yylex ()
+ throws java.io.IOException {
+ int yy_lookahead;
+ int yy_anchor = YY_NO_ANCHOR;
+ int yy_state = yy_state_dtrans[yy_lexical_state];
+ int yy_next_state = YY_NO_STATE;
+ int yy_last_accept_state = YY_NO_STATE;
+ boolean yy_initial = true;
+ int yy_this_accept;
+
+ yy_mark_start();
+ yy_this_accept = yy_acpt[yy_state];
+ if (YY_NOT_ACCEPT != yy_this_accept) {
+ yy_last_accept_state = yy_state;
+ yy_mark_end();
+ }
+ while (true) {
+ if (yy_initial && yy_at_bol) yy_lookahead = YY_BOL;
+ else yy_lookahead = yy_advance();
+ yy_next_state = YY_F;
+ yy_next_state = yy_nxt[yy_rmap[yy_state]][yy_cmap[yy_lookahead]];
+ if (YY_EOF == yy_lookahead && true == yy_initial) {
+
+ System.out.println("ENd of file: gut gemacht");
+ return new EOF();
+ }
+ if (YY_F != yy_next_state) {
+ yy_state = yy_next_state;
+ yy_initial = false;
+ yy_this_accept = yy_acpt[yy_state];
+ if (YY_NOT_ACCEPT != yy_this_accept) {
+ yy_last_accept_state = yy_state;
+ yy_mark_end();
+ }
+ }
+ else {
+ if (YY_NO_STATE == yy_last_accept_state) {
+ throw (new Error("Lexical Error: Unmatched Input."));
+ }
+ else {
+ yy_anchor = yy_acpt[yy_last_accept_state];
+ if (0 != (YY_END & yy_anchor)) {
+ yy_move_end();
+ }
+ yy_to_mark();
+ switch (yy_last_accept_state) {
+ case 1:
+
+ case -2:
+ break;
+ case 2:
+ { return new PLUS(); }
+ case -3:
+ break;
+ case 3:
+ { return new MAL(); }
+ case -4:
+ break;
+ case 4:
+ { return new MINUS(); }
+ case -5:
+ break;
+ case 5:
+ { return new GETEILT(); }
+ case -6:
+ break;
+ case 6:
+ { return new KLAMMERAUF(); }
+ case -7:
+ break;
+ case 7:
+ { return new KLAMMERZU(); }
+ case -8:
+ break;
+ case 8:
+ {System.out.print("Fehler");}
+ case -9:
+ break;
+ case 9:
+ { return new ZAHL();}
+ case -10:
+ break;
+ case 10:
+ { }
+ case -11:
+ break;
+ case 11:
+ {return new KLAMMERAUF();}
+ case -12:
+ break;
+ case 13:
+ {System.out.print("Fehler");}
+ case -13:
+ break;
+ case 14:
+ { return new ZAHL();}
+ case -14:
+ break;
+ default:
+ yy_error(YY_E_INTERNAL,false);
+ case -1:
+ }
+ yy_initial = true;
+ yy_state = yy_state_dtrans[yy_lexical_state];
+ yy_next_state = YY_NO_STATE;
+ yy_last_accept_state = YY_NO_STATE;
+ yy_mark_start();
+ yy_this_accept = yy_acpt[yy_state];
+ if (YY_NOT_ACCEPT != yy_this_accept) {
+ yy_last_accept_state = yy_state;
+ yy_mark_end();
+ }
+ }
+ }
+ }
+ }
+}
+class TschenrechnerScanner extends TaschenrechnerLexer implements TschenrechnerParser.yyInput {
+ public TschenrechnerScanner (java.io.Reader reader) {
+ super (reader);
+ }
+ //public int token() is not longer necessary
+
+ public yyTokenclass advance() throws java.io.IOException {
+ yyTokenclass ret = yylex();
+ return ret;
+ }
+
+ //public Object value () is not longer necessary
+
+}
diff --git a/TschenrechnerParser$YyCheckClass.class b/TschenrechnerParser$YyCheckClass.class
new file mode 100644
index 0000000..fa01198
Binary files /dev/null and b/TschenrechnerParser$YyCheckClass.class differ
diff --git a/TschenrechnerParser$YyDefRedClass.class b/TschenrechnerParser$YyDefRedClass.class
new file mode 100644
index 0000000..727c224
Binary files /dev/null and b/TschenrechnerParser$YyDefRedClass.class differ
diff --git a/TschenrechnerParser$YyDgotoClass.class b/TschenrechnerParser$YyDgotoClass.class
new file mode 100644
index 0000000..c56b946
Binary files /dev/null and b/TschenrechnerParser$YyDgotoClass.class differ
diff --git a/TschenrechnerParser$YyGindexClass.class b/TschenrechnerParser$YyGindexClass.class
new file mode 100644
index 0000000..70a7ff6
Binary files /dev/null and b/TschenrechnerParser$YyGindexClass.class differ
diff --git a/TschenrechnerParser$YyLenClass.class b/TschenrechnerParser$YyLenClass.class
new file mode 100644
index 0000000..b026737
Binary files /dev/null and b/TschenrechnerParser$YyLenClass.class differ
diff --git a/TschenrechnerParser$YyLhsClass.class b/TschenrechnerParser$YyLhsClass.class
new file mode 100644
index 0000000..cbd68f9
Binary files /dev/null and b/TschenrechnerParser$YyLhsClass.class differ
diff --git a/TschenrechnerParser$YyNameClass.class b/TschenrechnerParser$YyNameClass.class
new file mode 100644
index 0000000..438f824
Binary files /dev/null and b/TschenrechnerParser$YyNameClass.class differ
diff --git a/TschenrechnerParser$YyRindexClass.class b/TschenrechnerParser$YyRindexClass.class
new file mode 100644
index 0000000..664ba3d
Binary files /dev/null and b/TschenrechnerParser$YyRindexClass.class differ
diff --git a/TschenrechnerParser$YySindexClass.class b/TschenrechnerParser$YySindexClass.class
new file mode 100644
index 0000000..97129c2
Binary files /dev/null and b/TschenrechnerParser$YySindexClass.class differ
diff --git a/TschenrechnerParser$YyTableClass.class b/TschenrechnerParser$YyTableClass.class
new file mode 100644
index 0000000..37c89b4
Binary files /dev/null and b/TschenrechnerParser$YyTableClass.class differ
diff --git a/TschenrechnerParser$yyCheck0.class b/TschenrechnerParser$yyCheck0.class
new file mode 100644
index 0000000..fc04452
Binary files /dev/null and b/TschenrechnerParser$yyCheck0.class differ
diff --git a/TschenrechnerParser$yyException.class b/TschenrechnerParser$yyException.class
new file mode 100644
index 0000000..60aa0b1
Binary files /dev/null and b/TschenrechnerParser$yyException.class differ
diff --git a/TschenrechnerParser$yyInput.class b/TschenrechnerParser$yyInput.class
new file mode 100644
index 0000000..56170ea
Binary files /dev/null and b/TschenrechnerParser$yyInput.class differ
diff --git a/TschenrechnerParser$yyTable0.class b/TschenrechnerParser$yyTable0.class
new file mode 100644
index 0000000..fd07a48
Binary files /dev/null and b/TschenrechnerParser$yyTable0.class differ
diff --git a/TschenrechnerParser.class b/TschenrechnerParser.class
new file mode 100644
index 0000000..a5f13b9
Binary files /dev/null and b/TschenrechnerParser.class differ
diff --git a/TschenrechnerParser.java b/TschenrechnerParser.java
new file mode 100644
index 0000000..60a8b48
--- /dev/null
+++ b/TschenrechnerParser.java
@@ -0,0 +1,631 @@
+// created by jay 0.8 (c) 1998 Axel.Schreiner@informatik.uni-osnabrueck.de
+
+ // line 1 "TschenrechnerParser.jay"
+
+class TschenrechnerParser {
+ // line 7 "-"
+ 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 yyerror
+ */
+ 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 = 3;
+
+ /** 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 15 "TschenrechnerParser.jay"
+ {}
+ break;
+case 2:
+ // line 16 "TschenrechnerParser.jay"
+ {}
+ break;
+case 3:
+ // line 17 "TschenrechnerParser.jay"
+ {}
+ break;
+case 4:
+ // line 19 "TschenrechnerParser.jay"
+ {}
+ break;
+case 5:
+ // line 20 "TschenrechnerParser.jay"
+ {}
+ break;
+case 6:
+ // line 21 "TschenrechnerParser.jay"
+ {}
+ break;
+case 7:
+ // line 22 "TschenrechnerParser.jay"
+ {}
+ break;
+ // line 295 "-"
+ }
+ 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, 0, 0, 1, 1, 1, 1,
+ };
+ } /* End of class YyLhsClass */
+
+ protected static final class YyLenClass {
+
+ public static final short yyLen [] = { 2,
+ 3, 3, 1, 1, 1, 1, 1,
+ };
+ } /* End class YyLenClass */
+
+ protected static final class YyDefRedClass {
+
+ public static final short yyDefRed [] = { 0,
+ 0, 3, 0, 0, 4, 5, 6, 7, 0, 1,
+ 0,
+ };
+ } /* End of class YyDefRedClass */
+
+ protected static final class YyDgotoClass {
+
+ public static final short yyDgoto [] = { 3,
+ 9,
+ };
+ } /* End of class YyDgotoClass */
+
+ protected static final class YySindexClass {
+
+ public static final short yySindex [] = { -247,
+ -247, 0, -248, -255, 0, 0, 0, 0, -247, 0,
+ -248,
+ };
+ } /* 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,
+ 1,
+ };
+ } /* End of class YyRindexClass */
+
+ protected static final class YyGindexClass {
+
+ public static final short yyGindex [] = { -1,
+ 0,
+ };
+ } /* End of class YyGindexClass */
+
+protected static class yyTable0 {
+ protected static final short yyTable0 [] = { 4,
+ 2, 5, 6, 7, 8, 0, 10, 11, 5, 6,
+ 7, 8, 0, 1, 0, 2, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 2,
+ };
+}
+ protected static final class YyTableClass {
+
+ static short[] yyTable = new short[264];
+ protected static void yyTableInit () {
+ int numyycheck;
+ int yyTableerun = 0;
+ for (numyycheck = 0; numyycheck <= 1000; numyycheck++) {
+ if (yyTableerun < 264) {
+ yyTable[yyTableerun] = yyTable0.yyTable0[numyycheck];
+ yyTableerun++;
+ }
+ }
+}
+ } /* End of class YyTableClass */
+
+protected static class yyCheck0 {
+ protected static final short yyCheck0 [] = { 1,
+ 0, 257, 258, 259, 260, -1, 262, 9, 257, 258,
+ 259, 260, -1, 261, -1, 263, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, 262,
+ };
+}
+ protected static final class YyCheckClass {
+
+ static short[] yyCheck = new short[264];
+ protected static void yyCheckInit () {
+ int numyycheck;
+ int yyCheckerun = 0;
+ for (numyycheck = 0; numyycheck <= 1000; numyycheck++) {
+ if (yyCheckerun < 264) {
+ 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 : KLAMMERAUF S KLAMMERZU",
+//t "S : S operationszeichen S",
+//t "S : ZAHL",
+//t "operationszeichen : PLUS",
+//t "operationszeichen : MAL",
+//t "operationszeichen : MINUS",
+//t "operationszeichen : GETEILT",
+//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,"PLUS","MAL","MINUS","GETEILT",
+ "KLAMMERAUF","KLAMMERZU","ZAHL","MALKLAMMERAUF",
+ };
+ } /* End of class YyNameClass */
+
+
+ // line 23 "TschenrechnerParser.jay"
+
+ }
+ // line 535 "-"
+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 PLUS extends yyTokenclass {
+ PLUS(Object o) {
+ super(o);
+ this.tokennr = 257;
+ }
+ PLUS() {
+ super();
+ this.tokennr = 257;
+ }
+}
+ final class MAL extends yyTokenclass {
+ MAL(Object o) {
+ super(o);
+ this.tokennr = 258;
+ }
+ MAL() {
+ super();
+ this.tokennr = 258;
+ }
+}
+ final class MINUS extends yyTokenclass {
+ MINUS(Object o) {
+ super(o);
+ this.tokennr = 259;
+ }
+ MINUS() {
+ super();
+ this.tokennr = 259;
+ }
+}
+ final class GETEILT extends yyTokenclass {
+ GETEILT(Object o) {
+ super(o);
+ this.tokennr = 260;
+ }
+ GETEILT() {
+ super();
+ this.tokennr = 260;
+ }
+}
+ final class KLAMMERAUF extends yyTokenclass {
+ KLAMMERAUF(Object o) {
+ super(o);
+ this.tokennr = 261;
+ }
+ KLAMMERAUF() {
+ super();
+ this.tokennr = 261;
+ }
+}
+ final class KLAMMERZU extends yyTokenclass {
+ KLAMMERZU(Object o) {
+ super(o);
+ this.tokennr = 262;
+ }
+ KLAMMERZU() {
+ super();
+ this.tokennr = 262;
+ }
+}
+ final class ZAHL extends yyTokenclass {
+ ZAHL(Object o) {
+ super(o);
+ this.tokennr = 263;
+ }
+ ZAHL() {
+ super();
+ this.tokennr = 263;
+ }
+}
+ final class MALKLAMMERAUF extends yyTokenclass {
+ MALKLAMMERAUF(Object o) {
+ super(o);
+ this.tokennr = 264;
+ }
+ MALKLAMMERAUF() {
+ super();
+ this.tokennr = 264;
+ }
+}
+final class yyError extends yyTokenclass {
+ yyError () {
+ super();
+ this.tokennr = 256;
+ }
+}
diff --git a/TschenrechnerParser.jay b/TschenrechnerParser.jay
new file mode 100644
index 0000000..651b0ef
--- /dev/null
+++ b/TschenrechnerParser.jay
@@ -0,0 +1,24 @@
+%{
+class TschenrechnerParser {
+%}
+%token PLUS
+%token MAL
+%token MINUS
+%token GETEILT
+%token KLAMMERAUF
+%token KLAMMERZU
+%token ZAHL
+%token MALKLAMMERAUF
+
+
+%%
+S : KLAMMERAUF S KLAMMERZU {}
+ | S operationszeichen S {}
+ | ZAHL {}
+operationszeichen :
+ PLUS {}
+ | MAL{}
+ | MINUS{}
+ | GETEILT{}
+%%
+}
\ No newline at end of file
diff --git a/TschenrechnerScanner.class b/TschenrechnerScanner.class
new file mode 100644
index 0000000..5887c39
Binary files /dev/null and b/TschenrechnerScanner.class differ
diff --git a/ZAHL.class b/ZAHL.class
new file mode 100644
index 0000000..3692ce2
Binary files /dev/null and b/ZAHL.class differ
diff --git a/jaooy b/jaooy
new file mode 100644
index 0000000..232c8df
Binary files /dev/null and b/jaooy differ
diff --git a/skeleton.jaooy b/skeleton.jaooy
new file mode 100644
index 0000000..781c544
--- /dev/null
+++ b/skeleton.jaooy
@@ -0,0 +1,350 @@
+# jay skeleton
+
+# character in column 1 determines outcome...
+# # is a comment
+# . is copied
+# t is copied as //t if -t is set
+# other lines are interpreted to call jay procedures
+
+.// created by jay 0.8 (c) 1998 Axel.Schreiner@informatik.uni-osnabrueck.de
+.
+
+ prolog ## %{ ... %} prior to the first %%
+
+. 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 yyerror
+. */
+. 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;
+.
+ final_rule ## constant storing final rule
+.
+. /** 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
+.
+ local ## %{ ... %} after the first %%
+
+. 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) {
+
+ actions ## code from the actions within the grammar
+
+. }
+. 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;
+. }
+. }
+. }
+.
+ tables ## tables for rules, default reduction, and action calls
+.
+ debug ## tables for debugging support
+.
+ epilog ## text following second %%
+
+# modified by diho, 11.02.2004
+.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;
+. }
+.}
+
+
+# end of modification
+.// %token constants
+.
+# modified by diho, 11.02.2004
+ tokens final class
+# end of modification
diff --git a/test b/test
new file mode 100644
index 0000000..d569537
--- /dev/null
+++ b/test
@@ -0,0 +1 @@
+4 + 3 - 2
\ No newline at end of file
diff --git a/test2 b/test2
new file mode 100644
index 0000000..5580d2e
--- /dev/null
+++ b/test2
@@ -0,0 +1,23 @@
+
+
+
+
+
+ Spoon-Knife
+
+
+
+
+
+
+
+
+
+ Fork me? Fork you, @octocat!
+
+
+ Sean made a change
+
+
+
+
\ No newline at end of file
diff --git a/y.output b/y.output
new file mode 100644
index 0000000..2f4f8dd
--- /dev/null
+++ b/y.output
@@ -0,0 +1,128 @@
+ 0 $accept : S $end
+
+ 1 S : KLAMMERAUF S KLAMMERZU
+ 2 | S operationszeichen S
+ 3 | ZAHL
+
+ 4 operationszeichen : PLUS
+ 5 | MAL
+ 6 | MINUS
+ 7 | GETEILT
+
+state 0
+ $accept : . S $end (0)
+
+ KLAMMERAUF shift 1
+ ZAHL shift 2
+ . error
+
+ S goto 3
+
+
+state 1
+ S : KLAMMERAUF . S KLAMMERZU (1)
+
+ KLAMMERAUF shift 1
+ ZAHL shift 2
+ . error
+
+ S goto 4
+
+
+state 2
+ S : ZAHL . (3)
+
+ . reduce 3
+
+
+state 3
+ $accept : S . $end (0)
+ S : S . operationszeichen S (2)
+
+ $end accept
+ PLUS shift 5
+ MAL shift 6
+ MINUS shift 7
+ GETEILT shift 8
+ . error
+
+ operationszeichen goto 9
+
+
+state 4
+ S : KLAMMERAUF S . KLAMMERZU (1)
+ S : S . operationszeichen S (2)
+
+ PLUS shift 5
+ MAL shift 6
+ MINUS shift 7
+ GETEILT shift 8
+ KLAMMERZU shift 10
+ . error
+
+ operationszeichen goto 9
+
+
+state 5
+ operationszeichen : PLUS . (4)
+
+ . reduce 4
+
+
+state 6
+ operationszeichen : MAL . (5)
+
+ . reduce 5
+
+
+state 7
+ operationszeichen : MINUS . (6)
+
+ . reduce 6
+
+
+state 8
+ operationszeichen : GETEILT . (7)
+
+ . reduce 7
+
+
+state 9
+ S : S operationszeichen . S (2)
+
+ KLAMMERAUF shift 1
+ ZAHL shift 2
+ . error
+
+ S goto 11
+
+
+state 10
+ S : KLAMMERAUF S KLAMMERZU . (1)
+
+ . reduce 1
+
+
+11: shift/reduce conflict (shift 5, reduce 2) on PLUS
+11: shift/reduce conflict (shift 6, reduce 2) on MAL
+11: shift/reduce conflict (shift 7, reduce 2) on MINUS
+11: shift/reduce conflict (shift 8, reduce 2) on GETEILT
+state 11
+ S : S . operationszeichen S (2)
+ S : S operationszeichen S . (2)
+
+ PLUS shift 5
+ MAL shift 6
+ MINUS shift 7
+ GETEILT shift 8
+ $end reduce 2
+ KLAMMERZU reduce 2
+
+ operationszeichen goto 9
+
+
+State 11 contains 4 shift/reduce conflicts.
+
+
+10 terminals, 3 nonterminals
+8 grammar rules, 12 states
diff --git a/yyError.class b/yyError.class
new file mode 100644
index 0000000..0ef8f81
Binary files /dev/null and b/yyError.class differ
diff --git a/yyTokenclass.class b/yyTokenclass.class
new file mode 100644
index 0000000..f3780ce
Binary files /dev/null and b/yyTokenclass.class differ