X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/e9690142325711b320ef444768fdd40a087d02f7..8f6bbe0c106114eec8988eadaa25d59969439986:/src/reader.c

diff --git a/src/reader.c b/src/reader.c
index f6f58b5f..f18b5b82 100644
--- a/src/reader.c
+++ b/src/reader.c
@@ -1,7 +1,7 @@
 /* Input parser for Bison
 
    Copyright (C) 1984, 1986, 1989, 1992, 1998, 2000-2003, 2005-2007,
-   2009-2011 Free Software Foundation, Inc.
+   2009-2012 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -22,7 +22,6 @@
 #include "system.h"
 
 #include <quote.h>
-#include <quotearg.h>
 
 #include "complain.h"
 #include "conflicts.h"
@@ -60,7 +59,7 @@ void
 grammar_start_symbol_set (symbol *sym, location loc)
 {
   if (start_flag)
-    complain_at (loc, _("multiple %s declarations"), "%start");
+    complain (&loc, complaint, _("multiple %s declarations"), "%start");
   else
     {
       start_flag = true;
@@ -129,11 +128,16 @@ record_merge_function_type (int merger, uniqstr type, location declaration_loc)
   aver (merge_function != NULL && merger_find == merger);
   if (merge_function->type != NULL && !UNIQSTR_EQ (merge_function->type, type))
     {
-      complain_at (declaration_loc,
-                   _("result type clash on merge function `%s': <%s> != <%s>"),
-                   merge_function->name, type, merge_function->type);
-      complain_at (merge_function->type_declaration_location,
-                   _("previous declaration"));
+      unsigned indent = 0;
+      complain_indent (&declaration_loc, complaint, &indent,
+                       _("result type clash on merge function %s: "
+                         "<%s> != <%s>"),
+                       quote (merge_function->name), type,
+                       merge_function->type);
+      indent += SUB_INDENT;
+      complain_indent (&merge_function->type_declaration_location, complaint,
+                       &indent,
+                       _("previous declaration"));
     }
   merge_function->type = uniqstr_new (type);
   merge_function->type_declaration_location = declaration_loc;
@@ -198,9 +202,9 @@ assign_named_ref (symbol_list *p, named_ref *name)
 
   if (name->id == sym->tag)
     {
-      warn_at (name->loc,
-               _("duplicated symbol name for %s ignored"),
-               quote (sym->tag));
+      complain (&name->loc, Wother,
+                _("duplicated symbol name for %s ignored"),
+                quote (sym->tag));
       named_ref_free (name);
     }
   else
@@ -243,7 +247,8 @@ grammar_current_rule_begin (symbol *lhs, location loc,
       ++nvars;
     }
   else if (lhs->class == token_sym)
-    complain_at (loc, _("rule given for %s, which is a token"), lhs->tag);
+    complain (&loc, complaint, _("rule given for %s, which is a token"),
+              lhs->tag);
 }
 
 
@@ -258,7 +263,7 @@ grammar_current_rule_begin (symbol *lhs, location loc,
 static bool
 symbol_should_be_used (symbol_list const *s, bool *midrule_warning)
 {
-  if (symbol_destructor_get (s->content.sym)->code)
+  if (symbol_code_props_get (s->content.sym, destructor)->code)
     return true;
   if ((s->midrule && s->midrule->action_props.is_value_used)
       || (s->midrule_parent_rule
@@ -297,14 +302,14 @@ grammar_rule_check (const symbol_list *r)
           const char *rhs_type =
             first_rhs->type_name ? first_rhs->type_name : "";
           if (!UNIQSTR_EQ (lhs_type, rhs_type))
-            warn_at (r->location,
-                     _("type clash on default action: <%s> != <%s>"),
-                     lhs_type, rhs_type);
+            complain (&r->location, Wother,
+                      _("type clash on default action: <%s> != <%s>"),
+                      lhs_type, rhs_type);
         }
       /* Warn if there is no default for $$ but we need one.  */
       else
-        warn_at (r->location,
-                 _("empty rule for typed nonterminal, and no action"));
+        complain (&r->location, Wother,
+                  _("empty rule for typed nonterminal, and no action"));
     }
 
   /* Check that symbol values that should be used are in fact used.  */
@@ -319,12 +324,11 @@ grammar_rule_check (const symbol_list *r)
             /* The default action, $$ = $1, `uses' both.  */
             && (r->action_props.code || (n != 0 && n != 1)))
           {
-            void (*warn_at_ptr)(location, char const*, ...) =
-              midrule_warning ? midrule_value_at : warn_at;
+            warnings warn_flag = midrule_warning ? Wmidrule_values : Wother;
             if (n)
-              warn_at_ptr (r->location, _("unused value: $%d"), n);
+              complain (&r->location, warn_flag, _("unused value: $%d"), n);
             else
-              warn_at_ptr (r->location, _("unset value: $$"));
+              complain (&r->location, warn_flag, _("unset value: $$"));
           }
       }
   }
@@ -334,9 +338,9 @@ grammar_rule_check (const symbol_list *r)
      it for char literals and strings, which are always tokens.  */
   if (r->ruleprec
       && r->ruleprec->tag[0] != '\'' && r->ruleprec->tag[0] != '"'
-      && !r->ruleprec->declared && !r->ruleprec->prec)
-    warn_at (r->location, _("token for %%prec is not defined: %s"),
-             r->ruleprec->tag);
+      && r->ruleprec->status != declared && !r->ruleprec->prec)
+    complain (&r->location, Wother,
+              _("token for %%prec is not defined: %s"), r->ruleprec->tag);
 }
 
 
@@ -426,7 +430,7 @@ grammar_current_rule_prec_set (symbol *precsym, location loc)
      token.  */
   symbol_class_set (precsym, token_sym, loc, false);
   if (current_rule->ruleprec)
-    complain_at (loc, _("only one %s allowed per rule"), "%prec");
+    complain (&loc, complaint, _("only one %s allowed per rule"), "%prec");
   current_rule->ruleprec = precsym;
 }
 
@@ -436,11 +440,13 @@ void
 grammar_current_rule_dprec_set (int dprec, location loc)
 {
   if (! glr_parser)
-    warn_at (loc, _("%s affects only GLR parsers"), "%dprec");
+    complain (&loc, Wother, _("%s affects only GLR parsers"),
+              "%dprec");
   if (dprec <= 0)
-    complain_at (loc, _("%s must be followed by positive number"), "%dprec");
+    complain (&loc, complaint, _("%s must be followed by positive number"),
+              "%dprec");
   else if (current_rule->dprec != 0)
-    complain_at (loc, _("only one %s allowed per rule"), "%dprec");
+    complain (&loc, complaint, _("only one %s allowed per rule"), "%dprec");
   current_rule->dprec = dprec;
 }
 
@@ -451,9 +457,10 @@ void
 grammar_current_rule_merge_set (uniqstr name, location loc)
 {
   if (! glr_parser)
-    warn_at (loc, _("%s affects only GLR parsers"), "%merge");
+    complain (&loc, Wother, _("%s affects only GLR parsers"),
+              "%merge");
   if (current_rule->merger != 0)
-    complain_at (loc, _("only one %s allowed per rule"), "%merge");
+    complain (&loc, complaint, _("only one %s allowed per rule"), "%merge");
   current_rule->merger = get_merge_function (name);
   current_rule->merger_declaration_location = loc;
 }
@@ -471,6 +478,8 @@ grammar_current_rule_symbol_append (symbol *sym, location loc,
   p = grammar_symbol_append (sym, loc);
   if (name)
     assign_named_ref(p, name);
+  if (sym->status == undeclared || sym->status == used)
+    sym->status = needed;
 }
 
 /* Attach an ACTION to the current rule.  */
@@ -550,7 +559,7 @@ packgram (void)
           /* Don't allow rule_length == INT_MAX, since that might
              cause confusion with strtol if INT_MAX == LONG_MAX.  */
           if (rule_length == INT_MAX)
-              fatal_at (rules[ruleno].location, _("rule is too long"));
+            complain (&rules[ruleno].location, fatal, _("rule is too long"));
 
           /* item_number = symbol_number.
              But the former needs to contain more: negative rule numbers. */
@@ -632,17 +641,17 @@ static void
 prepare_percent_define_front_end_variables (void)
 {
   /* Set %define front-end variable defaults.  */
-  muscle_percent_define_default ("lr.keep-unreachable-states", "false");
+  muscle_percent_define_default ("lr.keep-unreachable-state", "false");
   {
     char *lr_type;
     /* IELR would be a better default, but LALR is historically the
        default.  */
     muscle_percent_define_default ("lr.type", "lalr");
     lr_type = muscle_percent_define_get ("lr.type");
-    if (0 != strcmp (lr_type, "canonical-lr"))
-      muscle_percent_define_default ("lr.default-reductions", "most");
+    if (STRNEQ (lr_type, "canonical-lr"))
+      muscle_percent_define_default ("lr.default-reduction", "most");
     else
-      muscle_percent_define_default ("lr.default-reductions", "accepting");
+      muscle_percent_define_default ("lr.default-reduction", "accepting");
     free (lr_type);
   }
 
@@ -650,7 +659,7 @@ prepare_percent_define_front_end_variables (void)
   {
     static char const * const values[] = {
       "lr.type", "lalr", "ielr", "canonical-lr", NULL,
-      "lr.default-reductions", "most", "consistent", "accepting", NULL,
+      "lr.default-reduction", "most", "consistent", "accepting", NULL,
       NULL
     };
     muscle_percent_define_check_values (values);
@@ -668,7 +677,7 @@ check_and_convert_grammar (void)
 {
   /* Grammar has been read.  Do some checking.  */
   if (nrules == 0)
-    fatal (_("no rules in the input grammar"));
+    complain (NULL, fatal, _("no rules in the input grammar"));
 
   /* If the user did not define her ENDTOKEN, do it now. */
   if (!endtoken)