From: Nobuyoshi Nakada <nobu@...>
Date: 2007-12-15T13:11:43+09:00
Subject: [ruby-dev:32606] encoding loading

なかだです。

encodingを自動的にロードするようにするパッチです。

とりあえず enc/ENCODING というライブラリをrequireするようになっ
ています。win32系は未対応ですが。


Index: configure.in
===================================================================
--- configure.in	(revision 14234)
+++ configure.in	(working copy)
@@ -1204,4 +1247,5 @@ AC_DEFINE_UNQUOTED(DLEXT_MAXLEN, `expr $
 test ".$DLEXT"  = "." || AC_DEFINE_UNQUOTED(DLEXT,  ".$DLEXT")
 test ".$DLEXT2" = "." || AC_DEFINE_UNQUOTED(DLEXT2, ".$DLEXT2")
+AC_SUBST(DLEXT)
 
 AC_SUBST(STRIP)dnl
@@ -1579,5 +1630,5 @@ AC_SUBST(MINIOBJS)
 AC_SUBST(THREAD_MODEL)
 
-MAKEFILES="Makefile `echo $FIRSTMAKEFILE | sed 's/:.*//'`"
+MAKEFILES="Makefile `echo $FIRSTMAKEFILE | sed 's/:.*//'` enc/GNUmakefile"
 MAKEFILES="`echo $MAKEFILES`"
 AC_SUBST(MAKEFILES)
@@ -1735,5 +1786,34 @@ fi
 tr -d '\015' < largefile.h > confdefs.h
 
+test -d enc || mkdir enc
+BUILTIN_ENCS='ascii euc_jp sjis unicode utf8'
+EXTERNAL_ENCS=
+for e in "${srcdir}/enc"/*.c; do
+    e=`basename "$e" .c`
+    case " $BUILTIN_ENCS " in
+      *" $e "*) ;;
+      *) EXTERNAL_ENCS="$EXTERNAL_ENCS $e";;
+    esac
+done
+echo $EX
+BUILTIN_ENCOBJS=
+for e in $BUILTIN_ENCS; do BUILTIN_ENCOBJS="$BUILTIN_ENCOBJS $e"'.$(OBJEXT)'; done
+EXTERNAL_ENCOBJS=
+for e in $EXTERNAL_ENCS; do EXTERNAL_ENCOBJS="$EXTERNAL_ENCOBJS $e"'.$(OBJEXT)'; done
+ENCSOS=
+for e in $EXTERNAL_ENCS; do ENCSOS="$ENCSOS "'$(ENCSODIR)/'"$e"'.$(DLEXT)'; done 
+
+AC_SUBST(BUILTIN_ENCOBJS)
+AC_SUBST(EXTERNAL_ENCOBJS)
+AC_SUBST(ENCSOS)
+
 AC_CONFIG_FILES($FIRSTMAKEFILE)
+AC_CONFIG_FILES(enc/Makefile, [{
+  for e in $ENCS; do
+    echo ''
+    echo '$(ENCSODIR)/'"$e"'.$(DLEXT): '"$e"'.$(OBJEXT)'
+    echo '	$(LDSHARED) $(DLDFLAGS) $< $(OUTFLAG)$''@'
+  done >> enc/Makefile
+}], [ENCS="$EXTERNAL_ENCS"])
 AC_CONFIG_FILES(Makefile, [{
 	sed '/^MISSING/s/\$U\././g' Makefile
Index: common.mk
===================================================================
--- common.mk	(revision 14234)
+++ common.mk	(working copy)
@@ -19,10 +19,4 @@ RDOCOUT       = $(EXTOUT)/rdoc
 DLDOBJS	      = $(DMYEXT)
 
-ENCOBJS       = ascii.$(OBJEXT) \
-		euc_jp.$(OBJEXT) \
-		sjis.$(OBJEXT) \
-		unicode.$(OBJEXT) \
-		utf8.$(OBJEXT)
-
 COMMONOBJS    = array.$(OBJEXT) \
 		bignum.$(OBJEXT) \
@@ -80,5 +73,5 @@ COMMONOBJS    = array.$(OBJEXT) \
 		cont.$(OBJEXT) \
 		id.$(OBJEXT) \
-		$(ENCOBJS) \
+		$(BUILTIN_ENCOBJS) \
 		$(MISSING)
 
Index: Makefile.in
===================================================================
--- Makefile.in	(revision 14234)
+++ Makefile.in	(working copy)
@@ -52,4 +52,5 @@ SOLIBS = @SOLIBS@
 MAINLIBS = @MAINLIBS@
 MINIOBJS = @MINIOBJS@ miniprelude.$(OBJEXT)
+BUILTIN_ENCOBJS = @BUILTIN_ENCOBJS@
 
 RUBY_INSTALL_NAME=@RUBY_INSTALL_NAME@
@@ -94,4 +95,5 @@ ASFLAGS       = @ASFLAGS@
 OBJEXT        = @OBJEXT@
 ASMEXT        = S
+DLEXT         = @DLEXT@
 MANTYPE	      = @MANTYPE@
 
Index: enc/Makefile.in
===================================================================
--- enc/Makefile.in	(revision 0)
+++ enc/Makefile.in	(revision 0)
@@ -0,0 +1,29 @@
+srcdir = @srcdir@
+top_srcdir = $(srcdir:/enc=)
+arch = @arch@
+EXTOUT = $(top_srcdir)/@EXTOUT@
+hdrdir = $(top_srcdir)/include
+arch_hdrdir = $(EXTOUT)/include/$(arch)
+VPATH = $(arch_hdrdir)/ruby:$(hdrdir)/ruby:$(top_srcdir):$(srcdir)
+ENCSODIR = $(EXTOUT)/$(arch)/enc
+DLEXT = @DLEXT@
+OBJEXT = @OBJEXT@
+
+ENCOBJS = @EXTERNAL_ENCOBJS@
+ENCSOS = @ENCSOS@
+empty =
+CC = @CC@
+OUTFLAG = @OUTFLAG@$(empty)
+CFLAGS = @CFLAGS@ @ARCH_FLAG@
+XCFLAGS = -I. -I$(arch_hdrdir) -I$(hdrdir) -I$(top_srcdir) @XCFLAGS@
+CPPFLAGS = @CPPFLAGS@
+LDFLAGS = @STATIC@ $(CFLAGS) @LDFLAGS@
+XLDFLAGS = @XLDFLAGS@ $(EXTLDFLAGS)
+LIBS = @LIBS@ $(EXTLIBS)
+LDSHARED = @LDSHARED@
+DLDFLAGS = @DLDFLAGS@ $(EXTLDFLAGS) @ARCH_FLAG@
+
+all: $(ENCOBJS) $(ENCSOS)
+
+.c.@OBJEXT@:
+	$(CC) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) -c $<
Index: encoding.c
===================================================================
--- encoding.c	(revision 14234)
+++ encoding.c	(working copy)
@@ -156,5 +156,5 @@ enc_register(const char *name, rb_encodi
 
 static VALUE enc_based_encoding(VALUE);
-#define rb_enc_registered(name) rb_enc_find_index(name)
+int rb_enc_registered(const char *name);
 
 int
@@ -253,5 +253,5 @@ rb_enc_from_index(int index)
 
 int
-rb_enc_find_index(const char *name)
+rb_enc_registered(const char *name)
 {
     int i;
@@ -279,4 +279,24 @@ rb_enc_find_index(const char *name)
 }
 
+static VALUE
+require_enc(VALUE enclib)
+{
+    return rb_require_safe(enclib, rb_safe_level());
+}
+
+int
+rb_enc_find_index(const char *name)
+{
+    int i = rb_enc_registered(name);
+    if (i < 0) {
+	VALUE enclib = rb_sprintf("enc/%s", name);
+	OBJ_FREEZE(enclib);
+	if (RTEST(rb_protect(require_enc, enclib, 0)))
+	    i = rb_enc_registered(name);
+	rb_set_errinfo(Qnil);
+    }
+    return i;
+}
+
 rb_encoding *
 rb_enc_find(const char *name)


-- 
--- 僕の前にBugはない。
--- 僕の後ろにBugはできる。
    中田 伸悦