X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/e9690142325711b320ef444768fdd40a087d02f7..3eb4f1a3e62807125a815dc572da9204b5b51865:/src/scan-code.l

diff --git a/src/scan-code.l b/src/scan-code.l
index cf4e7614..24ef5d92 100644
--- a/src/scan-code.l
+++ b/src/scan-code.l
@@ -1,6 +1,6 @@
 /* Bison Action Scanner                             -*- C -*-
 
-   Copyright (C) 2006-2011 Free Software Foundation, Inc.
+   Copyright (C) 2006-2012 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -96,10 +96,10 @@ ref      -?[0-9]+|{id}|"["{id}"]"|"$"
   int braces_level = 0;
 
   /* Whether a semicolon is probably needed.
-     The heuristic is that a semicolon is not needed after `{', `}', `;',
+     The heuristic is that a semicolon is not needed after '{', '}', ';',
      or a C preprocessor directive, and that whitespaces and comments
      do not affect this flag.
-     Note that `{' does not need a semicolon because of `{}'.
+     Note that '{' does not need a semicolon because of '{}'.
      A semicolon may be needed before a cpp direcive, but don't bother.  */
   bool need_semicolon = false;
 
@@ -118,7 +118,7 @@ ref      -?[0-9]+|{id}|"["{id}"]"|"$"
 %}
 
   /*------------------------------------------------------------.
-  | Scanning a C comment.  The initial `/ *' is already eaten.  |
+  | Scanning a C comment.  The initial '/ *' is already eaten.  |
   `------------------------------------------------------------*/
 
 <SC_COMMENT>
@@ -128,7 +128,7 @@ ref      -?[0-9]+|{id}|"["{id}"]"|"$"
 
 
   /*--------------------------------------------------------------.
-  | Scanning a line comment.  The initial `//' is already eaten.  |
+  | Scanning a line comment.  The initial '//' is already eaten.  |
   `--------------------------------------------------------------*/
 
 <SC_LINE_COMMENT>
@@ -198,12 +198,12 @@ ref      -?[0-9]+|{id}|"["{id}"]"|"$"
     need_semicolon = true;
   }
   "$"  {
-    warn_at (*loc, _("stray `$'"));
+    complain_at (*loc, Wother, _("stray '$'"));
     obstack_sgrow (&obstack_for_string, "$][");
     need_semicolon = true;
   }
   "@"  {
-    warn_at (*loc, _("stray `@'"));
+    complain_at (*loc, Wother, _("stray '@'"));
     obstack_sgrow (&obstack_for_string, "@@");
     need_semicolon = true;
   }
@@ -221,15 +221,17 @@ ref      -?[0-9]+|{id}|"["{id}"]"|"$"
   "}"  {
     bool outer_brace = --braces_level == 0;
 
-    /* As an undocumented Bison extension, append `;' before the last
+    /* As an undocumented Bison extension, append ';' before the last
        brace in braced code, so that the user code can omit trailing
-       `;'.  But do not append `;' if emulating Yacc, since Yacc does
+       ';'.  But do not append ';' if emulating Yacc, since Yacc does
        not append one.  */
     if (outer_brace && !yacc_flag && language_prio == default_prio
         && skeleton_prio == default_prio && need_semicolon && ! in_cpp)
       {
-        warn_at (*loc, _("a `;' might be needed at the end of action code"));
-        warn_at (*loc, _("future versions of Bison will not add the `;'"));
+        complain_at (*loc, Wother,
+                     _("a ';' might be needed at the end of action code"));
+        complain_at (*loc, Wother,
+                     _("future versions of Bison will not add the ';'"));
         obstack_1grow (&obstack_for_string, ';');
       }
 
@@ -239,8 +241,8 @@ ref      -?[0-9]+|{id}|"["{id}"]"|"$"
 
   /* Preprocessing directives should only be recognized at the beginning
      of lines, allowing whitespace including comments, but in C/C++,
-     `#' can only be the start of preprocessor directives or within
-     `#define' directives anyway, so don't bother with begin of line.  */
+     '#' can only be the start of preprocessor directives or within
+     '#define' directives anyway, so don't bother with begin of line.  */
   "#"       STRING_GROW; in_cpp = true;
 
   {splice}  STRING_GROW;
@@ -251,8 +253,8 @@ ref      -?[0-9]+|{id}|"["{id}"]"|"$"
      2.4.2.  */
   YYFAIL {
     STRING_GROW; need_semicolon = true;
-    warn_at (*loc, _("use of YYFAIL, which is deprecated and will be"
-                     " removed"));
+    complain_at (*loc, Wother,
+                 _("use of YYFAIL, which is deprecated and will be removed"));
   }
 
   /* The sole purpose of this is to make sure identifiers that merely
@@ -436,11 +438,13 @@ show_sub_messages (const char* cp, bool explicit_bracketing,
       if (var->err == 0)
         {
           if (is_warning)
-            warn_at_indent (var->loc, &indent, _("refers to: %c%s at %s"),
-                            dollar_or_at, var->id, at_spec);
+            complain_at_indent (var->loc, Wother, &indent,
+                                _("refers to: %c%s at %s"), dollar_or_at,
+                                var->id, at_spec);
           else
-            complain_at_indent (var->loc, &indent, _("refers to: %c%s at %s"),
-                                dollar_or_at, var->id, at_spec);
+            complain_at_indent (var->loc, complaint, &indent,
+                                _("refers to: %c%s at %s"), dollar_or_at,
+                                var->id, at_spec);
         }
       else
         {
@@ -483,10 +487,10 @@ show_sub_messages (const char* cp, bool explicit_bracketing,
 
           obstack_1grow (&msg_buf, '\0');
           if (is_warning)
-            warn_at_indent (id_loc, &indent, "%s",
-                            (char *) obstack_finish (&msg_buf));
+            complain_at_indent (id_loc, Wother, &indent, "%s",
+                                (char *) obstack_finish (&msg_buf));
           else
-            complain_at_indent (id_loc, &indent, "%s",
+            complain_at_indent (id_loc, complaint, &indent, "%s",
                                 (char *) obstack_finish (&msg_buf));
           obstack_free (&msg_buf, 0);
         }
@@ -529,7 +533,7 @@ parse_ref (char *cp, symbol_list *rule, int rule_length,
         return num;
       else
         {
-          complain_at (text_loc, _("integer out of range: %s"),
+          complain_at (text_loc, complaint, _("integer out of range: %s"),
                        quote (text));
           return INVALID_REF;
         }
@@ -618,8 +622,8 @@ parse_ref (char *cp, symbol_list *rule, int rule_length,
           cp_end - cp : ref_tail_fields - cp;
         unsigned indent = 0;
 
-        complain_at_indent (text_loc, &indent, _("invalid reference: %s"),
-                            quote (text));
+        complain_at_indent (text_loc, complaint, &indent,
+                            _("invalid reference: %s"), quote (text));
         indent += SUB_INDENT;
         if (len == 0)
           {
@@ -627,22 +631,23 @@ parse_ref (char *cp, symbol_list *rule, int rule_length,
             sym_loc.start.column += 1;
             sym_loc.end = sym_loc.start;
             const char *format =
-              _("syntax error after `%c', expecting integer, letter,"
-                " `_', `[', or `$'");
-            complain_at_indent (sym_loc, &indent, format, dollar_or_at);
+              _("syntax error after '%c', expecting integer, letter,"
+                " '_', '[', or '$'");
+            complain_at_indent (sym_loc, complaint, &indent, format,
+                                dollar_or_at);
           }
         else if (midrule_rhs_index)
           {
             const char *format =
               _("symbol not found in production before $%d: %.*s");
-            complain_at_indent (rule->location, &indent, format,
+            complain_at_indent (rule->location, complaint, &indent, format,
                                 midrule_rhs_index, len, cp);
           }
         else
           {
             const char *format =
               _("symbol not found in production: %.*s");
-            complain_at_indent (rule->location, &indent, format,
+            complain_at_indent (rule->location, complaint, &indent, format,
                                 len, cp);
           }
 
@@ -656,8 +661,8 @@ parse_ref (char *cp, symbol_list *rule, int rule_length,
         unsigned indent = 0;
         if (variant_count > 1)
           {
-            warn_at_indent (text_loc, &indent, _("misleading reference: %s"),
-                            quote (text));
+            complain_at_indent (text_loc, Wother, &indent,
+                                _("misleading reference: %s"), quote (text));
             show_sub_messages (cp, explicit_bracketing, midrule_rhs_index,
                                dollar_or_at, true, indent + SUB_INDENT);
           }
@@ -671,8 +676,8 @@ parse_ref (char *cp, symbol_list *rule, int rule_length,
     default:
       {
         unsigned indent = 0;
-        complain_at_indent (text_loc, &indent, _("ambiguous reference: %s"),
-                            quote (text));
+        complain_at_indent (text_loc, complaint, &indent,
+                            _("ambiguous reference: %s"), quote (text));
         show_sub_messages (cp, explicit_bracketing, midrule_rhs_index,
                            dollar_or_at, false, indent + SUB_INDENT);
         return INVALID_REF;
@@ -690,7 +695,7 @@ int max_left_semantic_context = 0;
 
 
 /*------------------------------------------------------------------.
-| TEXT is pointing to a wannabee semantic value (i.e., a `$').      |
+| TEXT is pointing to a wannabee semantic value (i.e., a '$').      |
 |                                                                   |
 | Possible inputs: $[<TYPENAME>]($|integer)                         |
 |                                                                   |
@@ -730,7 +735,8 @@ handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
       gt_ptr = cp;
       ++cp;
       if (untyped_var_seen)
-        complain_at (dollar_loc, _("explicit type given in untyped grammar"));
+        complain_at (dollar_loc, complaint,
+                  _("explicit type given in untyped grammar"));
       tag_seen = true;
     }
 
@@ -754,14 +760,15 @@ handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
           if (union_seen | tag_seen)
             {
               if (rule->midrule_parent_rule)
-                complain_at (dollar_loc,
-                             _("$$ for the midrule at $%d of `%s'"
+                complain_at (dollar_loc, complaint,
+                             _("$$ for the midrule at $%d of %s"
                                " has no declared type"),
                              rule->midrule_parent_rhs_index,
-                             effective_rule->content.sym->tag);
+                             quote (effective_rule->content.sym->tag));
               else
-                complain_at (dollar_loc, _("$$ of `%s' has no declared type"),
-                             rule->content.sym->tag);
+                complain_at (dollar_loc, complaint,
+                             _("$$ of %s has no declared type"),
+                             quote (rule->content.sym->tag));
             }
           else
             untyped_var_seen = true;
@@ -782,8 +789,9 @@ handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
       if (!type_name)
         {
           if (union_seen | tag_seen)
-            complain_at (dollar_loc, _("$%s of `%s' has no declared type"),
-                         cp, effective_rule->content.sym->tag);
+            complain_at (dollar_loc, complaint,
+                         _("$%s of %s has no declared type"), cp,
+                         quote (effective_rule->content.sym->tag));
           else
             untyped_var_seen = true;
           type_name = "";
@@ -801,7 +809,7 @@ handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
 
 
 /*------------------------------------------------------.
-| TEXT is a location token (i.e., a `@...').  Output to |
+| TEXT is a location token (i.e., a '@...').  Output to |
 | OBSTACK_FOR_STRING a reference to this location.      |
 `------------------------------------------------------*/
 
@@ -888,24 +896,20 @@ void
 code_props_plain_init (code_props *self, char const *code,
                        location code_loc)
 {
+  code_props_none_init (self);
   self->kind = CODE_PROPS_PLAIN;
   self->code = code;
   self->location = code_loc;
-  self->is_value_used = false;
-  self->rule = NULL;
-  self->named_ref = NULL;
 }
 
 void
 code_props_symbol_action_init (code_props *self, char const *code,
                                location code_loc)
 {
+  code_props_none_init (self);
   self->kind = CODE_PROPS_SYMBOL_ACTION;
   self->code = code;
   self->location = code_loc;
-  self->is_value_used = false;
-  self->rule = NULL;
-  self->named_ref = NULL;
 }
 
 void
@@ -913,10 +917,10 @@ code_props_rule_action_init (code_props *self, char const *code,
                              location code_loc, symbol_list *rule,
                              named_ref *name, bool is_predicate)
 {
+  code_props_none_init (self);
   self->kind = CODE_PROPS_RULE_ACTION;
   self->code = code;
   self->location = code_loc;
-  self->is_value_used = false;
   self->rule = rule;
   self->named_ref = name;
   self->is_predicate = is_predicate;