add fickle/taccle

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+2005-03-17  J. Tang  <tang@jtang.org>
+
+	* Added infinite recursion detection.  It should work.
+
+2004-10-29  J. Tang  <tang@jtang.org>
+
+	* Added more comments; upped version to 1.0.
+
+2004-09-29  J. Tang  <tang@jtang.org>
+
+	* Added --version flag to display taccle version.
+	
+	* Added infix_calc.tac as example of how to do precedence.
+	
+	* Added operator precedence (%left, %right, %nonassoc, and
+	%prec).  Seems to work, at least with the example from the bison
+	info manual.
+
+2004-09-28  J. Tang  <tang@jtang.org>
+
+	* Discovered obscure error when calculating FIRST and FOLLOW sets
+	given a rule of the form:  x -> A x A
+	(i.e., when the rule recurses with a terminal following the lhs
+	token)
+
+	* Added -w to enable warnings display.
+
+2004-09-27  J. Tang  <tang@jtang.org>
+
+	* Added write_array procedure to better format state transition
+	tables.  Thanks to jcw for suggestion.
+
+2004-09-08  J. Tang  <tang@jtang.org>
+
+	* As a result of working epsilons, added embedded actions.
+
+	* Fixed epsilon transitions by adding FOLLOW sets.  Double Woot!
+
+2004-08-18  J. Tang  <tang@jtang.org>
+
+	* Added epsilon transitions.  Woot!
+
+	* Renamed synthesized attributes to just $1, $2... Renamed $yy_
+	to $_.  (Yup, $_ like in Perl.)  Thanks to Matt Newman for
+	suggestion.	
+
+	* Added error terminal and error recovery (though no yyerrok).
+	See interactive_calculator.tac example.