Initial commit of uniconv

1 files changed, 119 insertions, 0 deletions

diff --git a/multibytecodec.h b/multibytecodec.h
new file mode 100644
index 0000000..5452bab
--- /dev/null
+++ b/multibytecodec.h
@@ -0,0 +1,119 @@
+/*
+ * multibytecodec.h: Common Multibyte Codec Implementation
+ *
+ * Written by Hye-Shik Chang <perky@FreeBSD.org>
+ */
+
+#ifndef _MULTIBYTECODEC_H_
+#define _MULTIBYTECODEC_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.h>
+
+#ifdef uint32_t
+    typedef uint32_t ucs4_t;
+#else
+    typedef unsigned int ucs4_t;
+#endif
+
+#ifdef uint16_t
+    typedef uint16_t ucs2_t, DBCHAR;
+#else
+    typedef unsigned short ucs2_t, DBCHAR;
+#endif
+
+    typedef union {
+	void *p;
+	int i;
+	unsigned char c[8];
+	ucs2_t u2[4];
+	ucs4_t u4[2];
+    } MultibyteCodec_State;
+
+    typedef int (*mbcodec_init)(const void *config);
+    typedef int (*mbencode_func)(MultibyteCodec_State *state,
+				 const void *config,
+				 const ucs4_t **inbuf, int inleft,
+				 unsigned char **outbuf, int outleft,
+				 int flags);
+    typedef int (*mbencodeinit_func)(MultibyteCodec_State *state,
+				     const void *config);
+    typedef int (*mbencodereset_func)(MultibyteCodec_State *state,
+				      const void *config,
+				      unsigned char **outbuf, int outleft);
+    typedef int (*mbdecode_func)(MultibyteCodec_State *state,
+				 const void *config,
+				 const unsigned char **inbuf, int inleft,
+				 ucs4_t **outbuf, int outleft);
+    typedef int (*mbdecodeinit_func)(MultibyteCodec_State *state,
+				     const void *config);
+    typedef int (*mbdecodereset_func)(MultibyteCodec_State *state,
+				      const void *config);
+
+    typedef struct {
+	const char *encoding;
+	const void *config;
+	mbcodec_init codecinit;
+	mbencode_func encode;
+	mbencodeinit_func encinit;
+	mbencodereset_func encreset;
+	mbdecode_func decode;
+	mbdecodeinit_func decinit;
+	mbdecodereset_func decreset;
+    } MultibyteCodec;
+
+    typedef struct {
+	const MultibyteCodec *codec;
+	MultibyteCodec_State state;
+    } MultibyteCodecState;
+
+/* positive values for illegal sequences */
+#define MBERR_TOOSMALL		(-1) /* insufficient output buffer space */
+#define MBERR_TOOFEW		(-2) /* incomplete input buffer */
+#define MBERR_INTERNAL		(-3) /* internal runtime error */
+
+#define ERROR_STRICT		(1)
+#define ERROR_IGNORE		(2)
+#define ERROR_REPLACE		(3)
+
+#define MBENC_FLUSH		0x0001 /* encode all characters encodable */
+#define MBENC_MAX		MBENC_FLUSH
+
+int
+mbc_importmap(const char *modname, const char *symbol,
+	      const void **encmap, const void **decmap);
+
+int
+mbcs_init(MultibyteCodecState *state,
+	  const char *modname,
+	  const char* charset);
+
+void
+mbcs_decode_init(MultibyteCodecState *state);
+
+void
+mbcs_decode_reset(MultibyteCodecState *state);
+
+void
+mbcs_encode_init(MultibyteCodecState *state);
+
+void
+mbcs_encode_reset(MultibyteCodecState *state,
+		  char **outbuf, int outleft);
+
+int
+mbcs_decode(MultibyteCodecState *state,
+	    const char** inbuf, size_t inlen,
+	    ucs4_t** outbuf, size_t outlen);
+
+int
+mbcs_encode(MultibyteCodecState *state,
+	    const ucs4_t** inbuf, size_t inlen,
+	    char** outbuf, size_t outlen);
+
+#ifdef __cplusplus
+}
+#endif
+#endif