Thu Mar 28 03:25:10 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>

	* intl/Makefile (copysrc): Add missing > in sed cmd.

Sat Mar 23 17:52:49 1996  Ulrich Drepper  <drepper@gnu.ai.mit.edu>

	* Makeconfig: Rename Makefile variable nlsdir to i18ndir and
	change value to $(datadir)/i18n.  `nls' is not an appropriate
	name.

	* Makefile (subdirs): Add new subdir wctype.

	* ctype/ctype-info.c: Add new global variable __ctype_names
	and initialize from _nl_C_LC_CTYPE.

	* ctype/ctype.h: In P1003.3b/D11 `alnum' is a separate character
        class.  Use bit 11.
	[_ISbit]: Protect definition of bitmasks because they are also
	used in wctype.h.

	* libio/genops.c (_IO_sputbackc, _IO_sungetc): Clear EOF flag
	after successfully pushing back a character.

	Fundamental changes in locale implementation.  Almost nothing
	from the old code is used anymore.
	* locale/charmap.c, locale/collate.c, locale/config.h,
 	locale/ctypedump.c, locale/hash.h, locale/keyword.gperf,
 	locale/keyword.h, locale/loadlocale.c, locale/locale-ctype.c,
 	locale/locale.c locale/localeconv.c, locale/localedef.c,
 	locale/localedef.h, locale/locfile-hash.c, locale/locfile-lex.c,
 	locale/locfile-parse.c, locale/messages.c, locale/monetary.c,
 	locale/numeric.c, locale/setlocale.c, locale/token.h,
 	locale/xmalloc.c: Removed.

	* locale/Makefile: Update for new locale implementation with
	program source code distributed in subdir.

	* locale/categories.def, locale/iso-4217.def: Updated file
        for new locale implementation.

	* locale/langinfo.h: Updated for new locale implementation.
	(ERA_D_T_FMT, ERA_T_FMT): New official values according to
	P1003.2b/D11.
	(_NL_COLLATE_NRULES, _NL_COLLATE_RULES, _NL_COLLATE_HASH_SIZE,
	_NL_COLLATE_HASH_LAYERS, _NL_COLLATE_TABLE_EB,
	_NL_COLLATE_TABLE_EL, _NL_COLLATE_UNDEFINED, _NL_COLLATE_EXTRA_EB,
	_NL_COLLATE_EXTRA_EL, _NL_CTYPE_NAMES_EB, _NL_CTYPE_NAMES_EL,
	_NL_CTYPE_HASH_SIZE, _NL_CTYPE_HASH_LAYERS, _NL_CTYPE_CLASS_NAMES,
	_NL_CTYPE_MAP_NAMES, _NL_CTYPE_WIDTH): New internal values for
	extended LC_CTYPE and LC_COLLATE implementation.

	* locale/simple-hash.c, locale/simple-hash.h, locale/xmalloc.c,
 	locale/xstrdup.c: Helper functions for locale related programs.

	* locale/C-collate.c, locale/C-ctype.c,
        locale/C-messages.c, locale/C-monetary.c,
        locale/C-numeric.c, locale/C-time.c,
        locale/lc-collate.c, locale/lc-ctype.c,
        locale/lc-messages.c, locale/lc-monetary.c,
        locale/lc-numeric.c, locale/lc-time.c: New implementation of locale
        functions, and new generated "C" locale data.

	* locale/loadlocale.c: Now handles word fields in locale binary
        automatically by changing the endianess if necessary.

	* locale/localeinfo.h (LIMAGIC): Changed magic number because
	of incompatible changes.
	(locale_data): Changed definition to allow word as a value type.
	(coll_sort_rule): Values for collation sorting mode.
	(_NL_CURRENT_WORD): New macro to access word value of locale entry.
	(__collate_table, __collate_extra): Declare new global variables
	for collation tables.

	* locale/programs/charmap-kw.gperf, locale/programs/charmap-kw.h,
        locale/programs/charmap.c, locale/programs/charset.c,
        locale/programs/charset.h, locale/programs/config.h,
        locale/programs/ctypedump.c, locale/programs/ld-collate.c,
        locale/programs/ld-ctype.c, locale/programs/ld-messages.c,
        locale/programs/ld-monetary.c, locale/programs/ld-numeric.c,
        locale/programs/ld-time.c, locale/programs/linereader.c,
        locale/programs/linereader.h, locale/programs/locale.c,
        locale/programs/localedef.c, locale/programs/locales.h,
        locale/programs/locfile-kw.gperf, locale/programs/locfile-kw.h,
        locale/programs/locfile-token.h, locale/programs/locfile.c,
        locale/programs/locfile.h, locale/programs/stringtrans.c,
        locale/programs/stringtrans.h: Implementation of locale related
        programs.

	* locale/weight.h: Functions to access collation tables.

	* posix/unistd.h: Define _POSIX2_LOCALEDEF.

	* stdio-common/printf_fp.c: Fix bug with printing certain numbers
	< 10^-1.  Reported by Bill Metzenthen.

	* stdio-common/tfformat.c: Add new test for above bug.

	* string/strcoll.c, string/strxfrm.c: Real implementation of
        string collation according to ISO C.

	* wctype/Makefile, wctype/cname-lookup.h, wctype/iswctype.c,
        wctype/test_wctype.c, wctype/towctrans.c, wctype/wcfuncs.c,
        wctype/wctrans.c, wctype/wctype.c, wctype/wctype.h: New files.
        Implementation of wide character classes and mapping.

1 files changed, 166 insertions, 9 deletions

diff --git a/string/strxfrm.c b/string/strxfrm.c
index e40ae1c433..7dce9c117f 100644
--- a/string/strxfrm.c
+++ b/string/strxfrm.c
@@ -1,5 +1,6 @@
-/* Copyright (C) 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
+Written by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
 
 The GNU C Library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Library General Public License as
@@ -13,12 +14,87 @@ Library General Public License for more details.
 
 You should have received a copy of the GNU Library General Public
 License along with the GNU C Library; see the file COPYING.LIB.  If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
+#include "localeinfo.h"
+
+#ifndef STRING_TYPE
+# define STRING_TYPE char
+# define USTRING_TYPE unsigned char
+# define STRXFRM strxfrm
+# define STRLEN strlen
+# define STPNCPY __stpncpy
+#endif
+
+/* Include the shared helper functions.  `strxfrm'/`wcsxfrm' also use
+   these functions.  */
+#include "weight.h"
+
+
+/* Write 32 bit value UTF-8 encoded but only if enough space is left.  */
+static __inline size_t
+print_val (value, dest, max, act)
+     u32_t value;
+     STRING_TYPE *dest;
+     size_t max;
+     size_t act;
+{
+  char tmp[6];
+  int idx = 0;
+
+  if (value < 0x80)
+    tmp[idx++] = (char) value;
+  else
+    {
+      tmp[idx++] = '\x80' + (char) (value & 0x3f);
+      value >>= 6;
+
+      if (value < 0x20)
+	tmp[idx++] = '\xc0' + (char) value;
+      else
+	{
+	  tmp[idx++] = '\x80' + (char) (value & 0x3f);
+	  value >>= 6;
+
+	  if (value < 0x10)
+	    tmp[idx++] = '\xe0' + (char) value;
+	  else
+	    {
+	      tmp[idx++] = '\x80' + (char) (value & 0x3f);
+	      value >>= 6;
+
+	      if (value < 0x08)
+		tmp[idx++] = '\xf0' + (char) value;
+	      else
+		{
+		  tmp[idx++] = '\x80' + (char) (value & 0x3f);
+		  value >>= 6;
+
+		  if (value < 0x04)
+		    tmp[idx++] = '\xf8' + (char) value;
+		  else
+		    {
+		      tmp[idx++] = '\x80' + (char) (value & 0x3f);
+		      tmp[idx++] = '\xfc' + (char) (value >> 6);
+		    }
+		}
+	    }
+	}
+    }
+
+  while (idx-- > 0)
+    {
+      if (act < max)
+	dest[act] = tmp[idx];
+      ++act;
+    }
+
+  return act;
+}
 
 
 /* Transform SRC into a form such that the result of strcmp
@@ -27,13 +103,94 @@ Cambridge, MA 02139, USA.  */
    their transformation.  The transformed string is put in at
    most N characters of DEST and its length is returned.  */
 size_t
-strxfrm (dest, src, n)
-     char *dest;
-     const char *src;
+STRXFRM (dest, src, n)
+     STRING_TYPE *dest;
+     const STRING_TYPE *src;
      size_t n;
 {
-  if (n == 0)
-    return strlen (src);
+  weight_t *forw = NULL;
+  weight_t *backw = NULL;
+  size_t pass;
+  size_t written;
+
+  /* If the current locale does not specify locale data we use normal
+     8-bit string comparison.  */
+  if (collate_nrules == 0)
+    {
+      if (n != 0)
+	STPNCPY (dest, src, n);
+
+      return STRLEN (src);
+    }
+
+  /* Get full information about the string.  This means we get
+     information for all passes in a special data structure.  */
+  get_string (src, forw, backw);
+
+  /* Now we have all the information.  In at most the given number of
+     passes we can finally decide about the order.  */
+  written = 0;
+  for (pass = 0; pass < collate_nrules; ++pass)
+    {
+      int forward = (collate_rules[pass] & sort_forward) != 0;
+      const weight_t *run = forward ? forw : backw;
+      int idx = forward ? 0 : run->data[pass].number - 1;
+
+      do
+	{
+	  int ignore = 0;
+	  u32_t w;
+
+	  /* Here we have to check for IGNORE entries.  If these are
+	     found we count them and go on witht he next value.  */
+	  while ((w = run->data[pass].value[idx]) == IGNORE_CHAR)
+	    {
+	      ++ignore;
+	      if ((forward && ++idx >= run->data[pass].number)
+		  || (!forward && --idx < 0))
+		{
+		  weight_t *nextp = forward ? run->next : run->prev;
+		  if (nextp == NULL)
+		    {
+		      w = 0;
+		      break;
+		    }
+		  run = nextp;
+		  idx = forward ? 0 : run->data[pass].number - 1;
+		}
+	    }
+
+	  /* Now we have information of the number of ignored weights
+	     and the value of the next weight.  We have to add 2
+	     because 0 means EOS and 1 is the intermediate string end.  */
+	  if ((collate_rules[pass] & sort_position) != 0)
+	    written = print_val (ignore + 2, dest, n, written);
+
+	  if (w != 0)
+	    written = print_val (w, dest, n, written);
+
+	  /* We have to increment the index counters.  */
+	  if ((forward && ++idx >= run->data[pass].number)
+	      || (!forward && --idx < 0))
+	    if (forward)
+	      {
+		run = run->next;
+		idx = 0;
+	      }
+	    else
+	      {
+		run = run->prev;
+		if (run != NULL)
+		  idx = run->data[pass].number - 1;
+	      }
+	}
+      while (run != NULL);
+
+      /* Write marker for end of word.  */
+      if (pass + 1 < collate_nrules)
+	written = print_val (1, dest, n, written);
+    }
 
-  return __stpncpy (dest, src, n) - dest;
+  /* Terminate string.  */
+  return print_val (0, dest, n, written);
 }