Add uchar.h support, part 1

c16 support for locales other than the C locale is still missing.

3 files changed, 97 insertions, 5 deletions

diff --git a/iconv/gconv_builtin.h b/iconv/gconv_builtin.h
index ef9ab8d..fd736a4 100644
--- a/iconv/gconv_builtin.h
+++ b/iconv/gconv_builtin.h
@@ -1,5 +1,5 @@
 /* Builtin transformations.
-   Copyright (C) 1997-1999, 2000-2002, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1997-1999, 2000-2002, 2006, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -122,3 +122,24 @@ BUILTIN_TRANSFORMATION ("INTERNAL", "UNICODEBIG//", 1,
 			__gconv_transform_internal_ucs2reverse, NULL,
 			4, 4, 2, 2)
 #endif
+
+
+BUILTIN_TRANSFORMATION ("ANSI_X3.4-1968//", "UTF-16//", 1, "=ascii->UTF-16",
+			__gconv_transform_ascii_utf16, NULL, 2, 2, 1, 1)
+
+BUILTIN_TRANSFORMATION ("UTF-16//", "ANSI_X3.4-1968//", 1, "=UTF-16->ascii",
+			__gconv_transform_utf16_ascii, NULL, 2, 2, 1, 1)
+
+#if BYTE_ORDER == BIG_ENDIAN
+BUILTIN_TRANSFORMATION ("ANSI_X3.4-1968//", "UTF-16BE//", 1, "=ascii->UTF-16BE",
+			__gconv_transform_ascii_utf16, NULL, 2, 2, 1, 1)
+
+BUILTIN_TRANSFORMATION ("UTF-16BE//", "ANSI_X3.4-1968//", 1, "=UTF-16BE->ascii",
+			__gconv_transform_utf16_ascii, NULL, 2, 2, 1, 1)
+#else
+BUILTIN_TRANSFORMATION ("ANSI_X3.4-1968//", "UTF-16LE//", 1, "=ascii->UTF-16LE",
+			__gconv_transform_ascii_utf16, NULL, 2, 2, 1, 1)
+
+BUILTIN_TRANSFORMATION ("UTF-16LE//", "ANSI_X3.4-1968//", 1, "=UTF-16LE->ascii",
+			__gconv_transform_utf16_ascii, NULL, 2, 2, 1, 1)
+#endif
diff --git a/iconv/gconv_int.h b/iconv/gconv_int.h
index fd11220..80253dd 100644
--- a/iconv/gconv_int.h
+++ b/iconv/gconv_int.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2005, 2006, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2005, 2006, 2007, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -303,6 +303,8 @@ __BUILTIN_TRANSFORM (__gconv_transform_internal_ucs4le);
 __BUILTIN_TRANSFORM (__gconv_transform_ucs4le_internal);
 __BUILTIN_TRANSFORM (__gconv_transform_internal_utf16);
 __BUILTIN_TRANSFORM (__gconv_transform_utf16_internal);
+__BUILTIN_TRANSFORM (__gconv_transform_ascii_utf16);
+__BUILTIN_TRANSFORM (__gconv_transform_utf16_ascii);
 # undef __BUITLIN_TRANSFORM
 
 /* Specialized conversion function for a single byte to INTERNAL, recognizing
diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c
index e34f377..b0ef3e6 100644
--- a/iconv/gconv_simple.c
+++ b/iconv/gconv_simple.c
@@ -1,5 +1,5 @@
 /* Simple transformations functions.
-   Copyright (C) 1997-2005, 2007, 2008, 2009 Free Software Foundation, Inc.
+   Copyright (C) 1997-2005, 2007, 2008, 2009, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -965,7 +965,7 @@ ucs4le_internal_loop_single (struct __gconv_step *step,
 	    cnt = 2;							      \
 	    ch &= 0x1f;							      \
 	  }								      \
-        else if (__builtin_expect ((ch & 0xf0) == 0xe0, 1))		      \
+	else if (__builtin_expect ((ch & 0xf0) == 0xe0, 1))		      \
 	  {								      \
 	    /* We expect three bytes.  */				      \
 	    cnt = 3;							      \
@@ -1221,7 +1221,7 @@ ucs4le_internal_loop_single (struct __gconv_step *step,
     else								      \
       {									      \
 	put16 (outptr, val);						      \
-        outptr += sizeof (uint16_t);					      \
+	outptr += sizeof (uint16_t);					      \
 	inptr += 4;							      \
       }									      \
   }
@@ -1320,3 +1320,72 @@ ucs4le_internal_loop_single (struct __gconv_step *step,
 #define LOOP_NEED_FLAGS
 #include <iconv/loop.c>
 #include <iconv/skeleton.c>
+
+
+/* Convert from ISO 646-IRV to UTF-16.  */
+#define DEFINE_INIT		0
+#define DEFINE_FINI		0
+#define MIN_NEEDED_FROM		1
+#define MIN_NEEDED_TO		2
+#define FROM_DIRECTION		1
+#define FROM_LOOP		ascii_utf16_loop
+#define TO_LOOP			ascii_utf16_loop /* This is not used.  */
+#define FUNCTION_NAME		__gconv_transform_ascii_utf16
+#define ONE_DIRECTION		1
+
+#define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO
+#define LOOPFCT			FROM_LOOP
+#define BODY \
+  {									      \
+    if (__builtin_expect (*inptr > '\x7f', 0))				      \
+      {									      \
+	/* The value is too large.  We don't try transliteration here since   \
+	   this is not an error because of the lack of possibilities to	      \
+	   represent the result.  This is a genuine bug in the input since    \
+	   ASCII does not allow such values.  */			      \
+	STANDARD_FROM_LOOP_ERR_HANDLER (1);				      \
+      }									      \
+    else								      \
+      {									      \
+	/* It's an one byte sequence.  */				      \
+	*((uint16_t *) outptr) = *inptr++;				      \
+	outptr += sizeof (uint16_t);					      \
+      }									      \
+  }
+#define LOOP_NEED_FLAGS
+#include <iconv/loop.c>
+#include <iconv/skeleton.c>
+
+
+/* Convert from UTF-16 to ISO 646-IRV.  */
+#define DEFINE_INIT		0
+#define DEFINE_FINI		0
+#define MIN_NEEDED_FROM		2
+#define MIN_NEEDED_TO		1
+#define FROM_DIRECTION		1
+#define FROM_LOOP		utf16_ascii_loop
+#define TO_LOOP			utf16_ascii_loop /* This is not used.  */
+#define FUNCTION_NAME		__gconv_transform_utf16_ascii
+#define ONE_DIRECTION		1
+
+#define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO
+#define LOOPFCT			FROM_LOOP
+#define BODY \
+  {									      \
+    if (__builtin_expect (*((const uint16_t *) inptr) > 0x7f, 0))	      \
+      {									      \
+	UNICODE_TAG_HANDLER (*((const uint16_t *) inptr), 2);		      \
+	STANDARD_TO_LOOP_ERR_HANDLER (2);				      \
+      }									      \
+    else								      \
+      {									      \
+	/* It's an one byte sequence.  */				      \
+	*outptr++ = *((const uint16_t *) inptr);			      \
+	inptr += sizeof (uint16_t);					      \
+      }									      \
+  }
+#define LOOP_NEED_FLAGS
+#include <iconv/loop.c>
+#include <iconv/skeleton.c>