Support a file name argument to %defines. Deprecate `=' in

[bison.git] / src / parse-gram.y

diff --git a/src/parse-gram.y b/src/parse-gram.y
index 66e5283a90650a1be76d60252527a5c50402439c..aabace130e1c0f152c8e28af947ac816de3f53fe 100644 (file)
--- a/src/parse-gram.y
+++ b/src/parse-gram.y
@@ -93,13 +93,13 @@ static int current_prec = 0;
   boundary_set (&@$.end, current_file, 1, 1);
 }
 
-/* Only NUMBERS have a value.  */
 %union
 {
   symbol *symbol;
   symbol_list *list;
   int integer;
-  char *chars;
+  char const *chars;
+  char *code;
   assoc assoc;
   uniqstr uniqstr;
   unsigned char character;
@@ -116,8 +116,6 @@ static int current_prec = 0;
 %token PERCENT_TYPE        "%type"
 %token PERCENT_DESTRUCTOR  "%destructor"
 %token PERCENT_PRINTER     "%printer"
-%token PERCENT_SYMBOL_DEFAULT
-                           "%symbol-default"
 
 %token PERCENT_LEFT        "%left"
 %token PERCENT_RIGHT       "%right"
@@ -177,17 +175,20 @@ static int current_prec = 0;
 %token PROLOGUE        "%{...%}"
 %token SEMICOLON       ";"
 %token TYPE            "type"
+%token TYPE_TAG_ANY    "<*>"
+%token TYPE_TAG_NONE   "<>"
 
 %type <character> CHAR
 %printer { fputs (char_name ($$), stderr); } CHAR
 
 /* braceless is not to be used for rule or symbol actions, as it
    calls translate_code. */
-%type <chars> STRING "{...}" "%{...%}" EPILOGUE braceless content content.opt
+%type <chars> STRING "%{...%}" EPILOGUE braceless content content.opt
+%type <code> "{...}"
 %printer { fputs (quotearg_style (c_quoting_style, $$), stderr); }
-         STRING
+        STRING
 %printer { fprintf (stderr, "{\n%s\n}", $$); }
-         braceless content content.opt "{...}" "%{...%}" EPILOGUE
+        braceless content content.opt "{...}" "%{...%}" EPILOGUE
 
 %type <uniqstr> TYPE ID ID_COLON
 %printer { fprintf (stderr, "<%s>", $$); } TYPE
@@ -225,10 +226,16 @@ prologue_declaration:
 | "%debug"                         { debug_flag = true; }
 | "%define" STRING content.opt     { muscle_insert ($2, $3); }
 | "%defines"                       { defines_flag = true; }
+| "%defines" STRING
+    {
+      defines_flag = true;
+      spec_defines_file = xstrdup ($2);
+    }
 | "%error-verbose"                 { error_verbose = true; }
 | "%expect" INT                    { expected_sr_conflicts = $2; }
 | "%expect-rr" INT                { expected_rr_conflicts = $2; }
-| "%file-prefix" "=" STRING        { spec_file_prefix = $3; }
+| "%file-prefix" STRING            { spec_file_prefix = $2; }
+| "%file-prefix" "=" STRING        { spec_file_prefix = $3; } /* deprecated */
 | "%glr-parser"
     {
       nondeterministic_parser = true;
@@ -240,10 +247,12 @@ prologue_declaration:
     }
 | "%lex-param" "{...}"         { add_param ("lex_param", $2, @2); }
 | "%locations"                  { locations_flag = true; }
-| "%name-prefix" "=" STRING     { spec_name_prefix = $3; }
+| "%name-prefix" STRING         { spec_name_prefix = $2; }
+| "%name-prefix" "=" STRING     { spec_name_prefix = $3; } /* deprecated */
 | "%no-lines"                   { no_lines_flag = true; }
 | "%nondeterministic-parser"   { nondeterministic_parser = true; }
-| "%output" "=" STRING          { spec_outfile = $3; }
+| "%output" STRING              { spec_outfile = $2; }
+| "%output" "=" STRING          { spec_outfile = $3; }  /* deprecated */
 | "%parse-param" "{...}"       { add_param ("parse_param", $2, @2); }
 | "%pure-parser"                { pure_parser = true; }
 | "%push-parser"                { push_parser = true; }
@@ -267,7 +276,7 @@ grammar_declaration:
       symbol_list *list;
       const char *action = translate_symbol_action ($2, @2);
       for (list = $3; list; list = list->next)
-        symbol_list_destructor_set (list, action, @2);
+       symbol_list_destructor_set (list, action, @2);
       symbol_list_free ($3);
     }
 | "%printer" "{...}" generic_symlist
@@ -275,7 +284,7 @@ grammar_declaration:
       symbol_list *list;
       const char *action = translate_symbol_action ($2, @2);
       for (list = $3; list; list = list->next)
-        symbol_list_printer_set (list, action, @2);
+       symbol_list_printer_set (list, action, @2);
       symbol_list_free ($3);
     }
 | "%default-prec"
@@ -395,7 +404,8 @@ generic_symlist:
 generic_symlist_item:
   symbol            { $$ = symbol_list_sym_new ($1, @1); }
 | TYPE              { $$ = symbol_list_type_new ($1, @1); }
-| "%symbol-default" { $$ = symbol_list_default_new (@1); }
+| "<*>"             { $$ = symbol_list_default_tagged_new (@1); }
+| "<>"             { $$ = symbol_list_default_tagless_new (@1); }
 ;
 
 /* One token definition.  */