1 files changed, 78 insertions, 0 deletions
diff --git a/Modules/cjkcodecs/_gbk.c b/Modules/cjkcodecs/_gbk.c
new file mode 100644
index 0000000..b5d058a
--- /dev/null
+++ b/Modules/cjkcodecs/_gbk.c
@@ -0,0 +1,78 @@
+/*
+ * _gbk.c: the GBK codec
+ *
+ * Written by Hye-Shik Chang <perky@FreeBSD.org>
+ * $CJKCodecs: _gbk.c,v 1.2 2003/12/31 05:46:55 perky Exp $
+ */
+
+#include "codeccommon.h"
+#include "tweak_gbk.h"
+
+ENCMAP(gbcommon)
+DECMAP(gb2312)
+DECMAP(gbkext)
+
+ENCODER(gbk)
+{
+    while (inleft > 0) {
+        Py_UNICODE  c = IN1;
+        DBCHAR      code;
+
+        if (c < 0x80) {
+            WRITE1(c)
+            NEXT(1, 1)
+            continue;
+        }
+        UCS4INVALID(c)
+
+        RESERVE_OUTBUF(2)
+
+        GBK_PREENCODE(c, code)
+        else TRYMAP_ENC(gbcommon, code, c);
+        else return 1;
+
+        OUT1((code >> 8) | 0x80)
+        if (code & 0x8000)
+            OUT2((code & 0xFF)) /* MSB set: GBK */
+        else
+            OUT2((code & 0xFF) | 0x80) /* MSB unset: GB2312 */
+        NEXT(1, 2)
+    }
+
+    return 0;
+}
+
+DECODER(gbk)
+{
+    while (inleft > 0) {
+        unsigned char    c = IN1;
+
+        RESERVE_OUTBUF(1)
+
+        if (c < 0x80) {
+            OUT1(c)
+            NEXT(1, 1)
+            continue;
+        }
+
+        RESERVE_INBUF(2)
+
+        GBK_PREDECODE(c, IN2, **outbuf)
+        else TRYMAP_DEC(gb2312, **outbuf, c ^ 0x80, IN2 ^ 0x80);
+        else TRYMAP_DEC(gbkext, **outbuf, c, IN2);
+        else return 2;
+
+        NEXT(2, 1)
+    }
+
+    return 0;
+}
+
+#include "codecentry.h"
+BEGIN_CODEC_REGISTRY(gbk)
+    MAPOPEN(zh_CN)
+        IMPORTMAP_DEC(gb2312)
+        IMPORTMAP_DEC(gbkext)
+        IMPORTMAP_ENC(gbcommon)
+    MAPCLOSE()
+END_CODEC_REGISTRY(gbk)