* encoding.c (enc_get_default_encoding): removed.

Generalizing rb_default_{external,internal}_encoding seems to be
  difficult. 
  default_external cannot be NULL even before detected. [ruby-dev:37390]

* encoding.c (rb_default_external_encoding): has its own
  implementation again.

* encoding.c (rb_default_internal_encoding): ditto.

* gem_prelude.rb: added notice.

* ruby.c (rubylib_mangled_path, rubylib_mangled_path2): uses locale
  encoding but not ASCII-8BIT.

* ruby.c (process_options): refers less to default_external.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,22 @@
+Fri Dec 12 14:09:55 2008  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* encoding.c (enc_get_default_encoding): removed.
+	  Generalizing rb_default_{external,internal}_encoding seems to be
+	  difficult. 
+	  default_external cannot be NULL even before detected. [ruby-dev:37390]
+
+	* encoding.c (rb_default_external_encoding): has its own
+	  implementation again.
+
+	* encoding.c (rb_default_internal_encoding): ditto.
+
+	* gem_prelude.rb: added notice.
+
+	* ruby.c (rubylib_mangled_path, rubylib_mangled_path2): uses locale
+	  encoding but not ASCII-8BIT.
+
+	* ruby.c (process_options): refers less to default_external.
+
 Fri Dec 12 11:00:52 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* load.c (rb_feature_p): load path must be expanded.

encoding.c

@@ -1037,15 +1037,6 @@ struct default_encoding {
     rb_encoding *enc;
 };
 
-static rb_encoding *
-enc_get_default_encoding(struct default_encoding *def)
-{
-    if (!def->enc && def->index >= 0) {
-	def->enc = rb_enc_from_index(def->index);
-    }
-    return def->enc;
-}
-
 static int
 enc_set_default_encoding(struct default_encoding *def, VALUE encoding,
 			 const char *name, int defindex)
@@ -1077,7 +1068,15 @@ static struct default_encoding default_external = {-2};
 rb_encoding *
 rb_default_external_encoding(void)
 {
-    return enc_get_default_encoding(&default_external);
+    if (default_external.enc) return default_external.enc;
+
+    if (default_external.index >= 0) {
+        default_external.enc = rb_enc_from_index(default_external.index);
+        return default_external.enc;
+    }
+    else {
+        return rb_locale_encoding();
+    }
 }
 
 VALUE
@@ -1126,7 +1125,10 @@ static struct default_encoding default_internal = {-2};
 rb_encoding *
 rb_default_internal_encoding(void)
 {
-    return enc_get_default_encoding(&default_internal);
+    if (!default_internal.enc && default_internal.index >= 0) {
+        default_internal.enc = rb_enc_from_index(default_internal.index);
+    }
+    return default_internal.enc; /* can be NULL */
 }
 
 VALUE

gem_prelude.rb

@@ -2,6 +2,10 @@
 # vim: filetype=ruby
 # THIS FILE WAS AUTOGENERATED, DO NOT EDIT
 
+# NOTICE: Ruby is during initialization here. 
+#   * Encoding.default_external does not reflects -E.
+#   * Should not expect Encoding.default_internal.
+#   * Locale encoding is available.
 if defined?(Gem) then
 
   module Kernel

ruby.c

@@ -213,9 +213,9 @@ rubylib_mangled_path(const char *s, unsigned int l)
 	}
     }
     if (!newp || l < oldl || STRNCASECMP(oldp, s, oldl) != 0) {
-	return rb_str_new(s, l);
+	return rb_locale_str_new(s, l);
     }
-    ret = rb_str_new(0, l + newl - oldl);
+    ret = rb_locale_str_new(0, l + newl - oldl);
     ptr = RSTRING_PTR(ret);
     memcpy(ptr, newp, newl);
     memcpy(ptr + newl, s + oldl, l - oldl);
@@ -229,8 +229,8 @@ rubylib_mangled_path2(const char *s)
     return rubylib_mangled_path(s, strlen(s));
 }
 #else
-#define rubylib_mangled_path rb_str_new
+#define rubylib_mangled_path rb_locale_str_new
-#define rubylib_mangled_path2 rb_str_new2
+#define rubylib_mangled_path2 rb_locale_str_new_cstr
 #endif
 
 static void
@@ -1178,7 +1178,7 @@ process_options(VALUE arg)
 	}
     }
 
-    ruby_script(opt->script);
+    rb_progname = rb_obj_freeze(rb_str_new_cstr(opt->script));
 #if defined DOSISH || defined __CYGWIN__
     translate_char(RSTRING_PTR(rb_progname), '\\', '/');
 #endif
@@ -1670,7 +1670,7 @@ ruby_process_options(int argc, char **argv)
     struct cmdline_options opt;
     NODE *tree;
 
-    ruby_script(argv[0]);	/* for the time being */
+    ruby_script(argv[0]);  /* for the time being */
     rb_argv0 = rb_str_new4(rb_progname);
     rb_gc_register_mark_object(rb_argv0);
     args.argc = argc;