doc: formatting changes

* doc/bison.texi: Use @group.

diff --git a/doc/bison.texi b/doc/bison.texi
index 18d3bb051bfadef114ad7e888eed6e25febc311e..24d05d33b05264104f3bbb79d59087ed9ca467dd 100644 (file)
--- a/doc/bison.texi
+++ b/doc/bison.texi
@@ -6994,30 +6994,38 @@ reduce/reduce conflict must be studied and usually eliminated.  Here is the
 proper way to define @code{sequence}:
 
 @example
 proper way to define @code{sequence}:
 
 @example

+@group

 sequence:
   /* empty */    @{ printf ("empty sequence\n"); @}
 | sequence word  @{ printf ("added word %s\n", $2); @}
 ;
 sequence:
   /* empty */    @{ printf ("empty sequence\n"); @}
 | sequence word  @{ printf ("added word %s\n", $2); @}
 ;

+@end group

 @end example
 
 Here is another common error that yields a reduce/reduce conflict:
 
 @example
 sequence:
 @end example
 
 Here is another common error that yields a reduce/reduce conflict:
 
 @example
 sequence:

+@group

   /* empty */
 | sequence words
 | sequence redirects
 ;
   /* empty */
 | sequence words
 | sequence redirects
 ;

+@end group

 
 

+@group

 words:
   /* empty */
 | words word
 ;
 words:
   /* empty */
 | words word
 ;

+@end group

 
 

+@group

 redirects:
   /* empty */
 | redirects redirect
 ;
 redirects:
   /* empty */
 | redirects redirect
 ;

+@end group

 @end example
 
 @noindent
 @end example
 
 @noindent