Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 275 insertions, 0 deletions

diff --git a/REORG.TODO/iconvdata/ibm937.c b/REORG.TODO/iconvdata/ibm937.c
new file mode 100644
index 0000000000..230c346fa0
--- /dev/null
+++ b/REORG.TODO/iconvdata/ibm937.c
@@ -0,0 +1,275 @@
+/* Conversion from and to IBM937.
+   Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Masahide Washizawa <washi@yamato.ibm.co.jp>, 2000.
+
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* IBM937 is designed for the representation of Traditional Chinese
+   using a stateful EBCDIC encoding scheme.  It is also known as
+   CCSID 937 or CP937. See:
+   https://www-01.ibm.com/software/globalization/ccsid/ccsid937.html */
+
+#include <dlfcn.h>
+#include <stdint.h>
+#include <wchar.h>
+#include <byteswap.h>
+#include "ibm937.h"
+
+/* The shift sequences for this charset (it does not use ESC).  */
+#define SI 		0x0F  /* Shift In, host code to turn DBCS off.  */
+#define SO 		0x0E  /* Shift Out, host code to turn DBCS on.  */
+
+/* Definitions used in the body of the `gconv' function.  */
+#define CHARSET_NAME	"IBM937//"
+#define FROM_LOOP	from_ibm937
+#define TO_LOOP		to_ibm937
+#define	ONE_DIRECTION			0
+#define FROM_LOOP_MIN_NEEDED_FROM	1
+#define FROM_LOOP_MAX_NEEDED_FROM	2
+#define FROM_LOOP_MIN_NEEDED_TO		4
+#define FROM_LOOP_MAX_NEEDED_TO		4
+#define TO_LOOP_MIN_NEEDED_FROM		4
+#define TO_LOOP_MAX_NEEDED_FROM		4
+#define TO_LOOP_MIN_NEEDED_TO		1
+#define TO_LOOP_MAX_NEEDED_TO		3
+#define PREPARE_LOOP \
+  int save_curcs;							      \
+  int *curcsp = &data->__statep->__count;
+#define EXTRA_LOOP_ARGS		, curcsp
+
+/* Definitions of initialization and destructor function.  */
+#define DEFINE_INIT	1
+#define DEFINE_FINI	1
+
+
+/* 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 & ~7) != sb)				      \
+    {									      \
+      if (FROM_DIRECTION)						      \
+	data->__statep->__count &= 7;					      \
+      else								      \
+	{								      \
+	  /* We are not in the initial state.  To switch back we have	      \
+	     to emit `SI'.  */						      \
+	  if (__glibc_unlikely (outbuf >= outend))			      \
+	    /* We don't have enough room in the output buffer.  */	      \
+	    status = __GCONV_FULL_OUTPUT;				      \
+	  else								      \
+	    {								      \
+	      /* Write out the shift sequence.  */			      \
+	      *outbuf++ = SI;						      \
+	      data->__statep->__count &= 7;				      \
+	    }								      \
+	}								      \
+    }
+
+
+/* Since we might have to reset input pointer we must be able to save
+   and retore the state.  */
+#define SAVE_RESET_STATE(Save) \
+  if (Save)								      \
+    save_curcs = *curcsp;						      \
+  else									      \
+    *curcsp = save_curcs
+
+
+/* Current codeset type.  */
+enum
+{
+  sb = 0,
+  db = 64
+};
+
+/* First, define the conversion function from IBM-937 to UCS4.  */
+#define MIN_NEEDED_INPUT	FROM_LOOP_MIN_NEEDED_FROM
+#define MAX_NEEDED_INPUT	FROM_LOOP_MAX_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT	FROM_LOOP_MIN_NEEDED_TO
+#define MAX_NEEDED_OUTPUT	FROM_LOOP_MAX_NEEDED_TO
+#define LOOPFCT 		FROM_LOOP
+#define BODY \
+  {									      \
+    uint32_t ch = *inptr;						      \
+    uint32_t res;							      \
+									      \
+    if (__builtin_expect (ch, 0) == SO)					      \
+      {									      \
+	/* Shift OUT, change to DBCS converter (redundant escape okay).  */   \
+	curcs = db;							      \
+	++inptr;							      \
+	continue;							      \
+      }									      \
+    else if (__builtin_expect (ch, 0) == SI)				      \
+      {									      \
+	/* Shift IN, change to SBCS converter (redundant escape okay).  */    \
+	curcs = sb;							      \
+	++inptr;							      \
+	continue;							      \
+      }									      \
+									      \
+    if (curcs == sb)							      \
+      {									      \
+	/* Use the IBM937 table for single byte.  */			      \
+	res = __ibm937sb_to_ucs4[ch];					      \
+	if (__builtin_expect (res, L'\1') == L'\0' && ch != '\0')	      \
+	  {								      \
+	    /* This is an illegal character.  */			      \
+	    STANDARD_FROM_LOOP_ERR_HANDLER (1);				      \
+	  }								      \
+	else								      \
+	  {								      \
+	    put32 (outptr, res);					      \
+	    outptr += 4;						      \
+	  }								      \
+	++inptr;							      \
+      }									      \
+    else								      \
+      {									      \
+	const struct gap *rp2 = __ibm937db_to_ucs4_idx;			      \
+									      \
+	assert (curcs == db);						      \
+									      \
+	/* Use the IBM937 table for double byte.  */			      \
+	if (__glibc_unlikely (inptr + 1 >= inend))			      \
+	  {								      \
+	    /* The second character is not available.			      \
+	       Store the intermediate result. */			      \
+	    result = __GCONV_INCOMPLETE_INPUT;				      \
+	    break;							      \
+	  }								      \
+									      \
+	ch = (ch * 0x100) + inptr[1];					      \
+	while (ch > rp2->end)						      \
+	  ++rp2;							      \
+									      \
+	if (__builtin_expect (rp2->start == 0xffff, 0)			      \
+	    || __builtin_expect (ch < rp2->start, 0)			      \
+	    || (res = __ibm937db_to_ucs4[ch + rp2->idx],		      \
+		__builtin_expect (res, L'\1') == L'\0' && ch != '\0'))	      \
+	  {								      \
+	    /* This is an illegal character.  */			      \
+	    STANDARD_FROM_LOOP_ERR_HANDLER (2);				      \
+	  }								      \
+	else								      \
+	  {								      \
+	    put32 (outptr, res);					      \
+	    outptr += 4;						      \
+	  }								      \
+	inptr += 2;							      \
+      }									      \
+  }
+#define LOOP_NEED_FLAGS
+#define EXTRA_LOOP_DECLS	, int *curcsp
+#define INIT_PARAMS		int curcs = *curcsp & ~7
+#define UPDATE_PARAMS		*curcsp = curcs
+#include <iconv/loop.c>
+
+/* Next, define the other direction.  */
+#define MIN_NEEDED_INPUT	TO_LOOP_MIN_NEEDED_FROM
+#define MAX_NEEDED_INPUT	TO_LOOP_MAX_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT	TO_LOOP_MIN_NEEDED_TO
+#define MAX_NEEDED_OUTPUT	TO_LOOP_MAX_NEEDED_TO
+#define LOOPFCT			TO_LOOP
+#define BODY \
+  {									      \
+    uint32_t ch = get32 (inptr);					      \
+    const struct gap *rp1 = __ucs4_to_ibm937sb_idx;			      \
+    const struct gap *rp2 = __ucs4_to_ibm937db_idx;			      \
+    const char *cp;							      \
+									      \
+    if (__glibc_unlikely (ch >= 0xffff))				      \
+      {									      \
+	UNICODE_TAG_HANDLER (ch, 4);					      \
+									      \
+	STANDARD_TO_LOOP_ERR_HANDLER (4);				      \
+      }									      \
+									      \
+    while (ch > rp1->end)						      \
+      ++rp1;								      \
+									      \
+    /* Use the UCS4 table for single byte.  */				      \
+    if (__builtin_expect (ch < rp1->start, 0)				      \
+	|| (cp = __ucs4_to_ibm937sb[ch + rp1->idx],			      \
+	    __builtin_expect (cp[0], L'\1') == L'\0' && ch != '\0'))	      \
+      {									      \
+	/* Use the UCS4 table for double byte. */			      \
+	while (ch > rp2->end)						      \
+	  ++rp2;							      \
+									      \
+	if (__builtin_expect (ch < rp2->start, 0)			      \
+	    || (cp = __ucs4_to_ibm937db[ch + rp2->idx],			      \
+		__builtin_expect (cp[0], L'\1')==L'\0' && ch != '\0'))	      \
+	  {								      \
+	    /* This is an illegal character.  */			      \
+	    STANDARD_TO_LOOP_ERR_HANDLER (4);				      \
+	  }								      \
+	else								      \
+	  {								      \
+	    if (curcs == sb)						      \
+	      {								      \
+		if (__glibc_unlikely (outptr + 1 > outend))		      \
+		  {							      \
+		    result = __GCONV_FULL_OUTPUT;			      \
+		    break;						      \
+		  }							      \
+		*outptr++ = SO;						      \
+		curcs = db;						      \
+	      }								      \
+									      \
+	    if (__glibc_unlikely (outptr + 2 > outend))			      \
+	      {								      \
+		result = __GCONV_FULL_OUTPUT;				      \
+		break;							      \
+	      }								      \
+	    *outptr++ = cp[0];						      \
+	    *outptr++ = cp[1];						      \
+	  }								      \
+      }									      \
+    else								      \
+      {									      \
+	if (curcs == db)						      \
+	  {								      \
+	    if (__glibc_unlikely (outptr + 1 > outend))			      \
+	      {								      \
+		result = __GCONV_FULL_OUTPUT;				      \
+		break;							      \
+	      }								      \
+	    *outptr++ = SI;						      \
+	    curcs = sb;							      \
+	  }								      \
+									      \
+	if (__glibc_unlikely (outptr + 1 > outend))			      \
+	  {								      \
+	    result = __GCONV_FULL_OUTPUT;				      \
+	    break;							      \
+	  }								      \
+	*outptr++ = cp[0];						      \
+      }									      \
+									      \
+    /* Now that we wrote the output increment the input pointer.  */	      \
+    inptr += 4;								      \
+  }
+#define LOOP_NEED_FLAGS
+#define EXTRA_LOOP_DECLS	, int *curcsp
+#define INIT_PARAMS		int curcs = *curcsp & ~7
+#define REINIT_PARAMS		curcs = *curcsp & ~7
+#define UPDATE_PARAMS		*curcsp = curcs
+#include <iconv/loop.c>
+
+/* Now define the toplevel functions.  */
+#include <iconv/skeleton.c>