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java: clean up the definition of token kinds

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    public interface Lexer {
      /* Token kinds.  */
      /** Token number, to be returned by the scanner.  */
      static final int YYEOF = 0;
      /** Token number, to be returned by the scanner.  */
      static final int YYERRCODE = 256;
      /** Token number, to be returned by the scanner.  */
      static final int YYUNDEF = 257;
      /** Token number, to be returned by the scanner.  */
      static final int BANG = 258;
    ...
      /** Deprecated, use b4_symbol(0, id) instead.  */
      public static final int EOF = YYEOF;

to

    public interface Lexer {
      /* Token kinds.  */
      /** Token "end of file", to be returned by the scanner.  */
      static final int YYEOF = 0;
      /** Token error, to be returned by the scanner.  */
      static final int YYerror = 256;
      /** Token "invalid token", to be returned by the scanner.  */
      static final int YYUNDEF = 257;
      /** Token "!", to be returned by the scanner.  */
      static final int BANG = 258;
    ...
      /** Deprecated, use YYEOF instead.  */
      public static final int EOF = YYEOF;

* data/skeletons/java.m4 (b4_token_enum): Display the symbol's tag in
comment.
* data/skeletons/lalr1.java: Address overquotation issue.
* examples/java/calc/Calc.y, examples/java/simple/Calc.y: Use YYEOF,
not EOF.
This commit is contained in:
Akim Demaille
2020-04-28 07:46:33 +02:00
parent cd4e799da4
commit 11027558c8
6 changed files with 16 additions and 7 deletions
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TODO
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@@ -84,6 +84,10 @@ Also do it in data/skeletons.
Don't rename in Bison 3.6 (it would be logical to do so) because that
would probably create many conflicts in Vincent's work (see previous point).
** A dev warning for b4_
Maybe we should check for m4_ and b4_ leaking out of the m4 processing, as
Autoconf does. It would have caught overquotation issues.
* Bison 3.8
** Unit rules / Injection rules (Akim Demaille)
Maybe we could expand unit rules (or "injections", see