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, 300 insertions, 0 deletions

diff --git a/REORG.TODO/iconvdata/tst-table-from.c b/REORG.TODO/iconvdata/tst-table-from.c
new file mode 100644
index 0000000000..eb6054eec5
--- /dev/null
+++ b/REORG.TODO/iconvdata/tst-table-from.c
@@ -0,0 +1,300 @@
+/* Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Bruno Haible <haible@clisp.cons.org>, 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/>.  */
+
+/* Create a table from CHARSET to Unicode.
+   This is a good test for CHARSET's iconv() module, in particular the
+   FROM_LOOP BODY macro.  */
+
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <iconv.h>
+#include <errno.h>
+
+/* If nonzero, ignore conversions outside Unicode plane 0.  */
+static int bmp_only;
+
+/* Converts a byte buffer to a hexadecimal string.  */
+static const char*
+hexbuf (unsigned char buf[], unsigned int buflen)
+{
+  static char msg[50];
+
+  switch (buflen)
+    {
+    case 1:
+      sprintf (msg, "0x%02X", buf[0]);
+      break;
+    case 2:
+      sprintf (msg, "0x%02X%02X", buf[0], buf[1]);
+      break;
+    case 3:
+      sprintf (msg, "0x%02X%02X%02X", buf[0], buf[1], buf[2]);
+      break;
+    case 4:
+      sprintf (msg, "0x%02X%02X%02X%02X", buf[0], buf[1], buf[2], buf[3]);
+      break;
+    default:
+      abort ();
+    }
+  return msg;
+}
+
+/* Attempts to convert a byte buffer BUF (BUFLEN bytes) to OUT (12 bytes)
+   using the conversion descriptor CD.  Returns the number of written bytes,
+   or 0 if ambiguous, or -1 if invalid.  */
+static int
+try (iconv_t cd, unsigned char buf[], unsigned int buflen, unsigned char *out)
+{
+  const char *inbuf = (const char *) buf;
+  size_t inbytesleft = buflen;
+  char *outbuf = (char *) out;
+  size_t outbytesleft = 12;
+  size_t result;
+
+  iconv (cd, NULL, NULL, NULL, NULL);
+  result = iconv (cd, (char **) &inbuf, &inbytesleft, &outbuf, &outbytesleft);
+  if (result != (size_t)(-1))
+    result = iconv (cd, NULL, NULL, &outbuf, &outbytesleft);
+
+  if (result == (size_t)(-1))
+    {
+      if (errno == EILSEQ)
+	{
+	  return -1;
+	}
+      else if (errno == EINVAL)
+	{
+	  return 0;
+	}
+      else
+	{
+	  int saved_errno = errno;
+	  fprintf (stderr, "%s: iconv error: ", hexbuf (buf, buflen));
+	  errno = saved_errno;
+	  perror ("");
+	  exit (1);
+	}
+    }
+  else
+    {
+      if (inbytesleft != 0)
+	{
+	  fprintf (stderr, "%s: inbytes = %ld, outbytes = %ld\n",
+		   hexbuf (buf, buflen),
+		   (long) (buflen - inbytesleft),
+		   (long) (12 - outbytesleft));
+	  exit (1);
+	}
+      return 12 - outbytesleft;
+    }
+}
+
+/* Returns the out[] buffer as a Unicode value, formatted as 0x%04X.  */
+static const char *
+utf8_decode (const unsigned char *out, unsigned int outlen)
+{
+  static char hexbuf[84];
+  char *p = hexbuf;
+
+  while (outlen > 0)
+    {
+      if (p > hexbuf)
+	*p++ = ' ';
+
+      if (out[0] < 0x80)
+	{
+	  sprintf (p, "0x%04X", out[0]);
+	  out += 1; outlen -= 1;
+	}
+      else if (out[0] >= 0xc0 && out[0] < 0xe0 && outlen >= 2)
+	{
+	  sprintf (p, "0x%04X", ((out[0] & 0x1f) << 6) + (out[1] & 0x3f));
+	  out += 2; outlen -= 2;
+	}
+      else if (out[0] >= 0xe0 && out[0] < 0xf0 && outlen >= 3)
+	{
+	  sprintf (p, "0x%04X", ((out[0] & 0x0f) << 12)
+				+ ((out[1] & 0x3f) << 6) + (out[2] & 0x3f));
+	  out += 3; outlen -= 3;
+	}
+      else if (out[0] >= 0xf0 && out[0] < 0xf8 && outlen >= 4)
+	{
+	  sprintf (p, "0x%04X", ((out[0] & 0x07) << 18)
+				+ ((out[1] & 0x3f) << 12)
+				+ ((out[2] & 0x3f) << 6) + (out[3] & 0x3f));
+	  out += 4; outlen -= 4;
+	}
+      else if (out[0] >= 0xf8 && out[0] < 0xfc && outlen >= 5)
+	{
+	  sprintf (p, "0x%04X", ((out[0] & 0x03) << 24)
+				+ ((out[1] & 0x3f) << 18)
+				+ ((out[2] & 0x3f) << 12)
+				+ ((out[3] & 0x3f) << 6) + (out[4] & 0x3f));
+	  out += 5; outlen -= 5;
+	}
+      else if (out[0] >= 0xfc && out[0] < 0xfe && outlen >= 6)
+	{
+	  sprintf (p, "0x%04X", ((out[0] & 0x01) << 30)
+				+ ((out[1] & 0x3f) << 24)
+				+ ((out[2] & 0x3f) << 18)
+				+ ((out[3] & 0x3f) << 12)
+				+ ((out[4] & 0x3f) << 6) + (out[5] & 0x3f));
+	  out += 6; outlen -= 6;
+	}
+      else
+	{
+	  sprintf (p, "0x????");
+	  out += 1; outlen -= 1;
+	}
+
+      if (bmp_only && strlen (p) > 6)
+	/* Ignore conversions outside Unicode plane 0.  */
+	return NULL;
+
+      p += strlen (p);
+    }
+
+  return hexbuf;
+}
+
+int
+main (int argc, char *argv[])
+{
+  const char *charset;
+  iconv_t cd;
+  int search_depth;
+
+  if (argc != 2)
+    {
+      fprintf (stderr, "Usage: tst-table-from charset\n");
+      exit (1);
+    }
+  charset = argv[1];
+
+  cd = iconv_open ("UTF-8", charset);
+  if (cd == (iconv_t)(-1))
+    {
+      perror ("iconv_open");
+      exit (1);
+    }
+
+  /* When testing UTF-8 or GB18030, stop at 0x10000, otherwise the output
+     file gets too big.  */
+  bmp_only = (strcmp (charset, "UTF-8") == 0
+	      || strcmp (charset, "GB18030") == 0);
+  search_depth = (strcmp (charset, "UTF-8") == 0 ? 3 : 4);
+
+  {
+    unsigned char out[12];
+    unsigned char buf[4];
+    unsigned int i0, i1, i2, i3;
+    int result;
+
+    for (i0 = 0; i0 < 0x100; i0++)
+      {
+	buf[0] = i0;
+	result = try (cd, buf, 1, out);
+	if (result < 0)
+	  {
+	  }
+	else if (result > 0)
+	  {
+	    const char *unicode = utf8_decode (out, result);
+	    if (unicode != NULL)
+	      printf ("0x%02X\t%s\n", i0, unicode);
+	  }
+	else
+	  {
+	    for (i1 = 0; i1 < 0x100; i1++)
+	      {
+		buf[1] = i1;
+		result = try (cd, buf, 2, out);
+		if (result < 0)
+		  {
+		  }
+		else if (result > 0)
+		  {
+		    const char *unicode = utf8_decode (out, result);
+		    if (unicode != NULL)
+		      printf ("0x%02X%02X\t%s\n", i0, i1, unicode);
+		  }
+		else
+		  {
+		    for (i2 = 0; i2 < 0x100; i2++)
+		      {
+			buf[2] = i2;
+			result = try (cd, buf, 3, out);
+			if (result < 0)
+			  {
+			  }
+			else if (result > 0)
+			  {
+			    const char *unicode = utf8_decode (out, result);
+			    if (unicode != NULL)
+			      printf ("0x%02X%02X%02X\t%s\n",
+				      i0, i1, i2, unicode);
+			  }
+			else if (search_depth > 3)
+			  {
+			    for (i3 = 0; i3 < 0x100; i3++)
+			      {
+				buf[3] = i3;
+				result = try (cd, buf, 4, out);
+				if (result < 0)
+				  {
+				  }
+				else if (result > 0)
+				  {
+				    const char *unicode =
+				      utf8_decode (out, result);
+				    if (unicode != NULL)
+				      printf ("0x%02X%02X%02X%02X\t%s\n",
+					      i0, i1, i2, i3, unicode);
+				  }
+				else
+				  {
+				    fprintf (stderr,
+					     "%s: incomplete byte sequence\n",
+					     hexbuf (buf, 4));
+				    exit (1);
+				  }
+			      }
+			  }
+		      }
+		  }
+	      }
+	  }
+      }
+  }
+
+  if (iconv_close (cd) < 0)
+    {
+      perror ("iconv_close");
+      exit (1);
+    }
+
+  if (ferror (stdin) || fflush (stdout) || ferror (stdout))
+    {
+      fprintf (stderr, "I/O error\n");
+      exit (1);
+    }
+
+  return 0;
+}