Check for unrecognized %define variables similar to checking for

[bison.git] / ChangeLog

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+2007-01-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       Check for unrecognized %define variables similar to checking for
+       unrecognized %code qualifiers.  Check for redefined %define variables.
+       * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
+       generalizes...
+       (b4_check_percent_code_qualifiers): ... this, which now wraps it.
+       (b4_check_percent_define_variables): New, also wraps it.
+       * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
+       variables using b4_check_percent_define_variables.
+       * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
+       all those exercised in the test suite and all those listed in the
+       `Default values' section of c++.m4.  Are there others?
+       * data/push.c, data/yacc.c: Declare no valid %define variables.
+       * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
+       similar to muscle_find, but it works even when the muscle stores a
+       const value.
+       (muscle_grow_used_name_list): New function for constructing the used
+       name list muscles that b4_check_for_unrecognized_names requires.
+       * src/parse-gram.y (prologue_declaration): Warn if a variable is
+       %define'd more than once.  Define the b4_used_percent_define_variables
+       muscle with muscle_grow_used_name_list.
+       (grammar_declaration): Abbreviate %code code with
+       muscle_grow_used_name_list.
+       * tests/input.at (%define errors): New.
+
 2007-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
 
        Provide warn_at, complain_at, and fatal_at function callbacks to the