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-rw-r--r--iconvdata/shift_jisx0213.c441
1 files changed, 441 insertions, 0 deletions
diff --git a/iconvdata/shift_jisx0213.c b/iconvdata/shift_jisx0213.c
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index 0000000000..81fef70ac0
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+++ b/iconvdata/shift_jisx0213.c
@@ -0,0 +1,441 @@
+/* Conversion from and to Shift_JISX0213.
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Bruno Haible <bruno@clisp.org>, 2002.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <dlfcn.h>
+#include <stdint.h>
+#include <gconv.h>
+
+/* The structure of Shift_JISX0213 is as follows:
+
+   0x00..0x7F: ISO646-JP, an ASCII variant
+
+   0x{A1..DF}: JISX0201 Katakana.
+
+   0x{81..9F,E0..EF}{40..7E,80..FC}: JISX0213 plane 1.
+
+   0x{F0..FC}{40..7E,80..FC}: JISX0213 plane 2, with irregular row mapping.
+
+   Note that some JISX0213 characters are not contained in Unicode 3.2
+   and are therefore best represented as sequences of Unicode characters.
+*/
+
+#include "jisx0213.h"
+
+/* Definitions used in the body of the `gconv' function.  */
+#define CHARSET_NAME		"SHIFT_JISX0213//"
+#define FROM_LOOP		from_shift_jisx0213
+#define TO_LOOP			to_shift_jisx0213
+#define DEFINE_INIT		1
+#define DEFINE_FINI		1
+#define MIN_NEEDED_FROM		1
+#define MAX_NEEDED_FROM		2
+#define MIN_NEEDED_TO		4
+#define PREPARE_LOOP \
+  int saved_state;							      \
+  int *statep = &data->__statep->__count;
+#define EXTRA_LOOP_ARGS		, statep
+
+
+/* Since we might have to reset input pointer we must be able to save
+   and restore the state.  */
+#define SAVE_RESET_STATE(Save) \
+  if (Save)								      \
+    saved_state = *statep;						      \
+  else									      \
+    *statep = saved_state
+
+
+/* During Shift_JISX0213 to UCS-4 conversion, the COUNT element of the state
+   contains the last UCS-4 character, shifted by 3 bits.
+   During UCS-4 to Shift_JISX0213 conversion, the COUNT element of the state
+   contains the last two bytes to be output, shifted by 3 bits.  */
+
+/* Since this is a stateful encoding we have to provide code which resets
+   the output state to the initial state.  This has to be done during the
+   flushing.  */
+#define EMIT_SHIFT_TO_INIT \
+  if (data->__statep->__count != 0)					      \
+    {									      \
+      if (FROM_DIRECTION)						      \
+	{								      \
+	  if (__builtin_expect (outbuf + 4 <= outend, 1))		      \
+	    {								      \
+	      /* Write out the last character.  */			      \
+	      *((uint32_t *) outbuf)++ = data->__statep->__count >> 3;	      \
+	      data->__statep->__count = 0;				      \
+	    }								      \
+	  else								      \
+	    /* We don't have enough room in the output buffer.  */	      \
+	    status = __GCONV_FULL_OUTPUT;				      \
+	}								      \
+      else								      \
+	{								      \
+	  if (__builtin_expect (outbuf + 2 <= outend, 1))		      \
+	    {								      \
+	      /* Write out the last character.  */			      \
+	      uint32_t lasttwo = data->__statep->__count >> 3;		      \
+	      *outbuf++ = (lasttwo >> 8) & 0xff;			      \
+	      *outbuf++ = lasttwo & 0xff;				      \
+	      data->__statep->__count = 0;				      \
+	    }								      \
+	  else								      \
+	    /* We don't have enough room in the output buffer.  */	      \
+	    status = __GCONV_FULL_OUTPUT;				      \
+	}								      \
+    }
+
+
+/* First define the conversion function from Shift_JISX0213 to UCS-4.  */
+#define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
+#define MAX_NEEDED_INPUT	MAX_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO
+#define LOOPFCT			FROM_LOOP
+#define BODY \
+  {									      \
+    uint32_t ch;							      \
+									      \
+    /* Determine whether there is a buffered character pending.  */	      \
+    ch = *statep >> 3;							      \
+    if (__builtin_expect (ch == 0, 1))					      \
+      {									      \
+	/* No - so look at the next input byte.  */			      \
+	ch = *inptr;							      \
+	if (ch < 0x80)							      \
+	  {								      \
+	    /* Plain ISO646-JP character.  */				      \
+	    if (__builtin_expect (ch == 0x5c, 0))			      \
+	      ch = 0xa5;						      \
+	    else if (__builtin_expect (ch == 0x7e, 0))			      \
+	      ch = 0x203e;						      \
+	    ++inptr;							      \
+	  }								      \
+	else if (ch >= 0xa1 && ch <= 0xdf)				      \
+	  {								      \
+	    /* Half-width katakana.  */					      \
+	    ch += 0xfec0;						      \
+	    ++inptr;							      \
+	  }								      \
+	else if ((ch >= 0x81 && ch <= 0x9f) || (ch >= 0xe0 && ch <= 0xfc))    \
+	  {								      \
+	    /* Two byte character.  */					      \
+	    uint32_t ch2;						      \
+									      \
+	    if (__builtin_expect (inptr + 1 >= inend, 0))		      \
+	      {								      \
+		/* The second byte is not available.  */		      \
+		result = __GCONV_INCOMPLETE_INPUT;			      \
+		break;							      \
+	      }								      \
+									      \
+	    ch2 = inptr[1];						      \
+									      \
+	    /* The second byte must be in the range 0x{40..7E,80..FC}.  */    \
+	    if (__builtin_expect (ch2 < 0x40 || ch2 == 0x7f || ch2 > 0xfc, 0))\
+	      {								      \
+		/* This is an illegal character.  */			      \
+		if (! ignore_errors_p ())				      \
+		  {							      \
+		    result = __GCONV_ILLEGAL_INPUT;			      \
+		    break;						      \
+		  }							      \
+									      \
+		++inptr;						      \
+		++*irreversible;					      \
+		break;							      \
+	      }								      \
+									      \
+	    /* Convert to row and column.  */				      \
+	    if (ch < 0xe0)						      \
+	      ch -= 0x81;						      \
+	    else							      \
+	      ch -= 0xc1;						      \
+	    if (ch2 < 0x80)						      \
+	      ch2 -= 0x40;						      \
+	    else							      \
+	      ch2 -= 0x41;						      \
+	    /* Now 0 <= ch <= 0x3b, 0 <= ch2 <= 0xbb.  */		      \
+	    ch = 2 * ch;						      \
+	    if (ch2 >= 0x5e)						      \
+	      ch2 -= 0x5e, ch++;					      \
+	    ch2 += 0x21;						      \
+	    if (ch >= 0x5e)						      \
+	      {								      \
+		/* Handling of JISX 0213 plane 2 rows.  */		      \
+		if (ch >= 0x67)						      \
+		  ch += 230;						      \
+		else if (ch >= 0x63 || ch == 0x5f)			      \
+		  ch += 168;						      \
+		else 							      \
+		  ch += 162;						      \
+	      }								      \
+									      \
+	    ch = jisx0213_to_ucs4 (0x121 + ch, ch2);			      \
+									      \
+	    if (ch == 0)						      \
+	      {								      \
+		/* This is an illegal character.  */			      \
+		if (! ignore_errors_p ())				      \
+		  {							      \
+		    result = __GCONV_ILLEGAL_INPUT;			      \
+		    break;						      \
+		  }							      \
+									      \
+		++inptr;						      \
+		++*irreversible;					      \
+		break;							      \
+	      }								      \
+									      \
+	    inptr += 2;							      \
+									      \
+	    if (ch < 0x80)						      \
+	      {								      \
+		/* It's a combining character.  */			      \
+		uint32_t u1 = __jisx0213_to_ucs_combining[ch - 1][0];	      \
+		uint32_t u2 = __jisx0213_to_ucs_combining[ch - 1][1];	      \
+									      \
+		/* See whether we have room for two characters.  */	      \
+		if (outptr + 8 <= outend)				      \
+		  {							      \
+		    put32 (outptr, u1);					      \
+		    outptr += 4;					      \
+		    put32 (outptr, u2);					      \
+		    outptr += 4;					      \
+		    continue;						      \
+		  }							      \
+									      \
+		/* Otherwise store only the first character now, and	      \
+		   put the second one into the queue.  */		      \
+		ch = u1;						      \
+		*statep = u2 << 3;					      \
+	      }								      \
+	  }								      \
+	else								      \
+	  {								      \
+	    /* This is illegal.  */					      \
+	    if (! ignore_errors_p ())					      \
+	      {								      \
+		result = __GCONV_ILLEGAL_INPUT;				      \
+		break;							      \
+	      }								      \
+									      \
+	    ++inptr;							      \
+	    ++*irreversible;						      \
+	    continue;							      \
+	  }								      \
+      }									      \
+									      \
+    put32 (outptr, ch);							      \
+    outptr += 4;							      \
+  }
+#define LOOP_NEED_FLAGS
+#define EXTRA_LOOP_DECLS	, int *statep
+#include <iconv/loop.c>
+
+
+/* Next, define the other direction, from UCS-4 to Shift_JISX0213.  */
+
+/* Composition tables for each of the relevant combining characters.  */
+static const struct
+{
+  uint16_t base;
+  uint16_t composed;
+} comp_table_data[] =
+{
+#define COMP_TABLE_IDX_02E5 0
+#define COMP_TABLE_LEN_02E5 1
+  { 0x8684, 0x8685 }, /* 0x12B65 = 0x12B64 U+02E5 */
+#define COMP_TABLE_IDX_02E9 (COMP_TABLE_IDX_02E5 + COMP_TABLE_LEN_02E5)
+#define COMP_TABLE_LEN_02E9 1
+  { 0x8680, 0x8686 }, /* 0x12B66 = 0x12B60 U+02E9 */
+#define COMP_TABLE_IDX_0300 (COMP_TABLE_IDX_02E9 + COMP_TABLE_LEN_02E9)
+#define COMP_TABLE_LEN_0300 5
+  { 0x857b, 0x8663 }, /* 0x12B44 = 0x1295C U+0300 */
+  { 0x8657, 0x8667 }, /* 0x12B48 = 0x12B38 U+0300 */
+  { 0x8656, 0x8669 }, /* 0x12B4A = 0x12B37 U+0300 */
+  { 0x864f, 0x866b }, /* 0x12B4C = 0x12B30 U+0300 */
+  { 0x8662, 0x866d }, /* 0x12B4E = 0x12B43 U+0300 */
+#define COMP_TABLE_IDX_0301 (COMP_TABLE_IDX_0300 + COMP_TABLE_LEN_0300)
+#define COMP_TABLE_LEN_0301 4
+  { 0x8657, 0x8668 }, /* 0x12B49 = 0x12B38 U+0301 */
+  { 0x8656, 0x866a }, /* 0x12B4B = 0x12B37 U+0301 */
+  { 0x864f, 0x866c }, /* 0x12B4D = 0x12B30 U+0301 */
+  { 0x8662, 0x866e }, /* 0x12B4F = 0x12B43 U+0301 */
+#define COMP_TABLE_IDX_309A (COMP_TABLE_IDX_0301 + COMP_TABLE_LEN_0301)
+#define COMP_TABLE_LEN_309A 14
+  { 0x82a9, 0x82f5 }, /* 0x12477 = 0x1242B U+309A */
+  { 0x82ab, 0x82f6 }, /* 0x12478 = 0x1242D U+309A */
+  { 0x82ad, 0x82f7 }, /* 0x12479 = 0x1242F U+309A */
+  { 0x82af, 0x82f8 }, /* 0x1247A = 0x12431 U+309A */
+  { 0x82b1, 0x82f9 }, /* 0x1247B = 0x12433 U+309A */
+  { 0x834a, 0x8397 }, /* 0x12577 = 0x1252B U+309A */
+  { 0x834c, 0x8398 }, /* 0x12578 = 0x1252D U+309A */
+  { 0x834e, 0x8399 }, /* 0x12579 = 0x1252F U+309A */
+  { 0x8350, 0x839a }, /* 0x1257A = 0x12531 U+309A */
+  { 0x8352, 0x839b }, /* 0x1257B = 0x12533 U+309A */
+  { 0x835a, 0x839c }, /* 0x1257C = 0x1253B U+309A */
+  { 0x8363, 0x839d }, /* 0x1257D = 0x12544 U+309A */
+  { 0x8367, 0x839e }, /* 0x1257E = 0x12548 U+309A */
+  { 0x83f3, 0x83f6 }, /* 0x12678 = 0x12675 U+309A */
+};
+
+#define MIN_NEEDED_INPUT	MIN_NEEDED_TO
+#define MIN_NEEDED_OUTPUT	MIN_NEEDED_FROM
+#define MAX_NEEDED_OUTPUT	MAX_NEEDED_FROM
+#define LOOPFCT			TO_LOOP
+#define BODY \
+  {									      \
+    uint32_t ch = get32 (inptr);					      \
+									      \
+    if ((*statep >> 3) != 0)						      \
+      {									      \
+	/* Attempt to combine the last character with this one.  */	      \
+	uint16_t lasttwo = *statep >> 3;				      \
+	unsigned int idx;						      \
+	unsigned int len;						      \
+									      \
+	if (ch == 0x02e5)						      \
+	  idx = COMP_TABLE_IDX_02E5, len = COMP_TABLE_LEN_02E5;		      \
+	else if (ch == 0x02e9)						      \
+	  idx = COMP_TABLE_IDX_02E9, len = COMP_TABLE_LEN_02E9;		      \
+	else if (ch == 0x0300)						      \
+	  idx = COMP_TABLE_IDX_0300, len = COMP_TABLE_LEN_0300;		      \
+	else if (ch == 0x0301)						      \
+	  idx = COMP_TABLE_IDX_0301, len = COMP_TABLE_LEN_0301;		      \
+	else if (ch == 0x309a)						      \
+	  idx = COMP_TABLE_IDX_309A, len = COMP_TABLE_LEN_309A;		      \
+	else								      \
+	  goto not_combining;						      \
+									      \
+	do								      \
+	  if (comp_table_data[idx].base == lasttwo)			      \
+	    break;							      \
+	while (++idx, --len > 0);					      \
+									      \
+	if (len > 0)							      \
+	  {								      \
+	    /* Output the combined character.  */			      \
+	    if (__builtin_expect (outptr + 1 >= outend, 0))		      \
+	      {								      \
+		result = __GCONV_FULL_OUTPUT;				      \
+		break;							      \
+	      }								      \
+	    lasttwo = comp_table_data[idx].composed;			      \
+	    *outptr++ = (lasttwo >> 8) & 0xff;				      \
+	    *outptr++ = lasttwo & 0xff;					      \
+	    *statep = 0;						      \
+	    inptr += 4;							      \
+	    continue;							      \
+	  }								      \
+									      \
+      not_combining:							      \
+	/* Output the buffered character.  */				      \
+	if (__builtin_expect (outptr + 1 >= outend, 0))			      \
+	  {								      \
+	    result = __GCONV_FULL_OUTPUT;				      \
+	    break;							      \
+	  }								      \
+	*outptr++ = (lasttwo >> 8) & 0xff;				      \
+	*outptr++ = lasttwo & 0xff;					      \
+	*statep = 0;							      \
+	continue;							      \
+      }									      \
+									      \
+    if (ch < 0x80)							      \
+      /* Plain ISO646-JP character.  */					      \
+      *outptr++ = ch;							      \
+    else if (ch == 0xa5)						      \
+      *outptr++ = 0x5c;							      \
+    else if (ch == 0x203e)						      \
+      *outptr++ = 0x7e;							      \
+    else if (ch >= 0xff61 && ch <= 0xff9f)				      \
+      /* Half-width katakana.  */					      \
+      *outptr++ = ch - 0xfec0;						      \
+    else								      \
+      {									      \
+	unsigned int s1, s2;						      \
+									      \
+	ch = ucs4_to_jisx0213 (ch);					      \
+	if (ch == 0)							      \
+	  {								      \
+	    UNICODE_TAG_HANDLER (ch, 4);				      \
+									      \
+	    /* Illegal character.  */					      \
+	    STANDARD_ERR_HANDLER (4);					      \
+	  }								      \
+									      \
+	/* Convert it to shifted representation.  */			      \
+	s1 = ch >> 8;							      \
+	s2 = ch & 0x7f;							      \
+	s1 -= 0x21;							      \
+	s2 -= 0x21;							      \
+	if (s1 >= 0x5e)							      \
+	  {								      \
+	    /* Handling of JISX 0213 plane 2 rows.  */			      \
+	    if (s1 >= 0xcd) /* rows 0x26E..0x27E */			      \
+	      s1 -= 102;						      \
+	    else if (s1 >= 0x8b || s1 == 0x87) /* rows 0x228, 0x22C..0x22F */ \
+	      s1 -= 40;							      \
+	    else /* rows 0x221, 0x223..0x225 */				      \
+	      s1 -= 34;							      \
+	    /* Now 0x5e <= s1 <= 0x77.  */				      \
+	  }								      \
+	if (s1 & 1)							      \
+	  s2 += 0x5e;							      \
+	s1 = s1 >> 1;							      \
+	if (s1 < 0x1f)							      \
+	  s1 += 0x81;							      \
+	else								      \
+	  s1 += 0xc1;							      \
+	if (s2 < 0x3f)							      \
+	  s2 += 0x40;							      \
+	else								      \
+	  s2 += 0x41;							      \
+									      \
+	if (ch & 0x0080)						      \
+	  {								      \
+	    /* A possible match in comp_table_data.  We have to buffer it.  */\
+									      \
+	    /* We know it's a JISX 0213 plane 1 character.  */		      \
+	    assert ((ch & 0x8000) == 0);				      \
+									      \
+	    *statep = ((s1 << 8) | s2) << 3;				      \
+	    inptr += 4;							      \
+	    continue;							      \
+	  }								      \
+									      \
+	/* Output the shifted representation.  */			      \
+	if (__builtin_expect (outptr + 1 >= outend, 0))			      \
+	  {								      \
+	    result = __GCONV_FULL_OUTPUT;				      \
+	    break;							      \
+	  }								      \
+	*outptr++ = s1;							      \
+	*outptr++ = s2;							      \
+      }									      \
+									      \
+    inptr += 4;								      \
+  }
+#define LOOP_NEED_FLAGS
+#define EXTRA_LOOP_DECLS	, int *statep
+#include <iconv/loop.c>
+
+
+/* Now define the toplevel functions.  */
+#include <iconv/skeleton.c>