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ruby-changes:17443

From: naruse <ko1@a...>
Date: Tue, 12 Oct 2010 15:37:34 +0900 (JST)
Subject: [ruby-changes:17443] Ruby:r29448 (trunk): * io.c (rb_io_ungetc): use unsigned int for GB18030.

naruse	2010-10-12 15:37:27 +0900 (Tue, 12 Oct 2010)

  New Revision: 29448

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=29448

  Log:
    * io.c (rb_io_ungetc): use unsigned int for GB18030.

  Modified files:
    trunk/ChangeLog
    trunk/io.c
    trunk/test/ruby/test_io_m17n.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 29447)
+++ ChangeLog	(revision 29448)
@@ -1,3 +1,7 @@
+Tue Oct 12 15:36:09 2010  NARUSE, Yui  <naruse@r...>
+
+	* io.c (rb_io_ungetc): use unsigned int for GB18030.
+
 Tue Oct 12 15:14:21 2010  NARUSE, Yui  <naruse@r...>
 
 	* io.c (rb_io_putc): support multibyte characters.
Index: io.c
===================================================================
--- io.c	(revision 29447)
+++ io.c	(revision 29448)
@@ -3229,12 +3229,13 @@
     rb_io_check_char_readable(fptr);
     if (NIL_P(c)) return Qnil;
     if (FIXNUM_P(c)) {
-	int cc = FIX2INT(c);
-	rb_encoding *enc = io_read_encoding(fptr);
-	char buf[16];
-
-	c = rb_str_new(buf, rb_enc_mbcput(cc, buf, enc));
+	c = rb_enc_uint_chr(FIX2UINT(c), io_read_encoding(fptr));
     }
+#if SIZEOF_LONG > SIZEOF_INT
+    else if (TYPE(c) == T_BIGNUM) {
+	c = rb_enc_uint_chr(NUM2UINT(c), io_read_encoding(fptr));
+    }
+#endif
     else {
 	SafeStringValue(c);
     }
Index: test/ruby/test_io_m17n.rb
===================================================================
--- test/ruby/test_io_m17n.rb	(revision 29447)
+++ test/ruby/test_io_m17n.rb	(revision 29448)
@@ -418,6 +418,30 @@
     }
   end
 
+  def test_ungetc_int
+    with_tmpdir {
+      generate_file('tmp', "A")
+      s = open("tmp", "r:GB18030") {|f|
+        f.ungetc(0x8431A439)
+        f.read
+      }
+      assert_equal(Encoding::GB18030, s.encoding)
+      assert_str_equal(0x8431A439.chr("GB18030")+"A", s)
+    }
+  end
+
+  def test_ungetc_str
+    with_tmpdir {
+      generate_file('tmp', "A")
+      s = open("tmp", "r:GB18030") {|f|
+        f.ungetc(0x8431A439.chr("GB18030"))
+        f.read
+      }
+      assert_equal(Encoding::GB18030, s.encoding)
+      assert_str_equal(0x8431A439.chr("GB18030")+"A", s)
+    }
+  end
+
   def test_ungetc_stateful_conversion
     with_tmpdir {
       src = "before \e$B\x23\x30\x23\x31\e(B after".force_encoding("iso-2022-jp")

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