This commit was manufactured by cvs2svn to create tag 'buildscript'.

[IRC.git] / Robust / cup / java_cup / symbol.java

diff --git a/Robust/cup/java_cup/symbol.java b/Robust/cup/java_cup/symbol.java
deleted file mode 100644 (file)
index 94d8b7d..0000000
--- a/Robust/cup/java_cup/symbol.java
+++ /dev/null
@@ -1,107 +0,0 @@
-package java_cup;
-
-/** This abstract class serves as the base class for grammar symbols (i.e.,
- * both terminals and non-terminals).  Each symbol has a name string, and
- * a string giving the type of object that the symbol will be represented by
- * on the runtime parse stack.  In addition, each symbol maintains a use count
- * in order to detect symbols that are declared but never used, and an index
- * number that indicates where it appears in parse tables (index numbers are
- * unique within terminals or non terminals, but not across both).
- *
- * @see     java_cup.terminal
- * @see     java_cup.non_terminal
- * @version last updated: 7/3/96
- * @author  Frank Flannery
- */
-public abstract class symbol {
-   /*-----------------------------------------------------------*/
-   /*--- Constructor(s) ----------------------------------------*/
-   /*-----------------------------------------------------------*/
-
-   /** Full constructor.
-    * @param nm the name of the symbol.
-    * @param tp a string with the type name.
-    */
-   public symbol(String nm, String tp)
-     {
-       /* sanity check */
-       if (nm == null) nm = "";
-
-       /* apply default if no type given */
-       if (tp == null) tp = "Object";
-
-       _name = nm;
-       _stack_type = tp;
-     }
-
-  /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
-
-   /** Constructor with default type. 
-    * @param nm the name of the symbol.
-    */
-   public symbol(String nm)
-     {
-       this(nm, null);
-     }
-
-   /*-----------------------------------------------------------*/
-   /*--- (Access to) Instance Variables ------------------------*/
-   /*-----------------------------------------------------------*/
-
-   /** String for the human readable name of the symbol. */
-   protected String _name; 
- 
-   /** String for the human readable name of the symbol. */
-   public String name() {return _name;}
-
-  /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
-
-   /** String for the type of object used for the symbol on the parse stack. */
-   protected String _stack_type;
-
-   /** String for the type of object used for the symbol on the parse stack. */
-   public String stack_type() {return _stack_type;}
-
-  /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
-
-   /** Count of how many times the symbol appears in productions. */
-   protected int _use_count = 0;
-
-   /** Count of how many times the symbol appears in productions. */
-   public int use_count() {return _use_count;}
-
-   /** Increment the use count. */ 
-   public void note_use() {_use_count++;}
- 
-  /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
- 
-  /** Index of this symbol (terminal or non terminal) in the parse tables.
-   *  Note: indexes are unique among terminals and unique among non terminals,
-   *  however, a terminal may have the same index as a non-terminal, etc. 
-   */
-   protected int _index;
- 
-  /** Index of this symbol (terminal or non terminal) in the parse tables.
-   *  Note: indexes are unique among terminals and unique among non terminals,
-   *  however, a terminal may have the same index as a non-terminal, etc. 
-   */
-   public int index() {return _index;}
-
-  /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
-
-  /** Indicate if this is a non-terminal.  Here in the base class we
-   *  don't know, so this is abstract.  
-   */
-  public abstract boolean is_non_term();
-
-  /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
-
-  /** Convert to a string. */
-  public String toString()
-    {
-      return name();
-    }
-
-  /*-----------------------------------------------------------*/
-
-}