* tests/sets.at (Broken Closure): Add the ending `;'.

* tests/input.at (Invalid $n, Invalid @n): Likewise.
* tests/output.at (AT_CHECK_OUTPUT): Likewise.
* src/reader.at (readgram): Complain if a rule is not ended with a
semi-colon.

ChangeLog

@@ -1,3 +1,11 @@
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+	* tests/sets.at (Broken Closure): Add the ending `;'.
+	* tests/input.at (Invalid $n, Invalid @n): Likewise.
+	* tests/output.at (AT_CHECK_OUTPUT): Likewise.
+	* src/reader.at (readgram): Complain if a rule is not ended with a
+	semi-colon.
+
 2002-02-28  Akim Demaille  <akim@epita.fr>
 
 	* tests/Makefile.am (check_SCRIPTS): New.

NEWS

@@ -1,7 +1,14 @@
 Bison News
 ----------
 
-Changes in version 1.33a:
+Changes in version 1.33b:
+
+* A missing `;' ending a rule triggers a warning
+  In accordance with POSIX, and in agreement with other
+  Yacc implementations, Bison will mandate this semicolon in a near
+  future.  This eases the implementation of a Bison parser of Bison
+  grammars by making this grammar LALR(1) instead of LR(2).  To
+  facilitate the transition, this release introduces a warning.
 
 * Revert the C++ namespace changes introduced in 1.31, as they caused too
   many portability hassles.

src/reader.c

@@ -1440,7 +1440,10 @@ readgram (void)
 		  unlex (t1);
 		  symval = ssave;
 		  if (t1 == tok_colon)
-		    break;
+		    {
+		      complain (_("previous rule lacks an ending `;'"));
+		      break;
+		    }
 
 		  if (!first_rhs)	/* JF */
 		    first_rhs = symval;
@@ -1549,6 +1552,8 @@ readgram (void)
 	  /* Warn if there is no default for $$ but we need one.  */
 	  else if (!xactions && !first_rhs && lhs->type_name != 0)
 	    complain (_("empty rule for typed nonterminal, and no action"));
+	  if (t == tok_two_percents || t == tok_eof)
+	    complain (_("previous rule lacks an ending `;'"));
 	  if (t == tok_semicolon)
 	    t = lex ();
 	}
@@ -1585,7 +1590,7 @@ readgram (void)
 	}
       else if (t == tok_start)
 	{
-	  parse_start_decl ();
+	  parse_start_decl (;)
 	  t = lex ();
 	}
 #endif

tests/input.at

@@ -29,7 +29,7 @@ AT_SETUP([Invalid $n])
 
 AT_DATA([input.y],
 [[%%
-exp: { $$ = $1 ; }
+exp: { $$ = $1 ; };
 ]])
 
 AT_CHECK([bison input.y], [1], [],
@@ -48,7 +48,7 @@ AT_SETUP([Invalid @n])
 
 AT_DATA([input.y],
 [[%%
-exp: { @$ = @1 ; }
+exp: { @$ = @1 ; };
 ]])
 
 AT_CHECK([bison input.y], [1], [],

tests/output.at

@@ -26,7 +26,7 @@ m4_define([AT_CHECK_OUTPUT],
 AT_DATA([$1],
 [[$2
 %%
-foo: {}
+foo: {};
 ]])
 
 AT_CHECK([bison $3 $1], 0)

tests/regression.at

@@ -103,7 +103,7 @@ AT_DATA([input.y],
 [[/* Bison used to swallow the character after `}'. */
 
 %%
-exp: { tests = {{{{{{{{{{}}}}}}}}}}; }
+exp: { tests = {{{{{{{{{{}}}}}}}}}}; };
 %%
 ]])
 
@@ -382,7 +382,7 @@ expr:
 
 {
 
-}
+};
 ]])
 
 AT_CHECK([bison input.y -o input.c -v], 0, [], [])

tests/sets.at

@@ -161,14 +161,14 @@ AT_SETUP([Broken Closure])
 
 AT_DATA([input.y],
 [[%%
-a: b
-b: c
-c: d
-d: e
-e: f
-f: g
-g: h
-h: 'h'
+a: b;
+b: c;
+c: d;
+d: e;
+e: f;
+f: g;
+g: h;
+h: 'h';
 ]])
 
 AT_CHECK([bison --trace input.y 2>&1 |