[deliverable/binutils-gdb.git] / intl / l10nflist.c

/* Handle list of needed message catalogs
   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif


#if defined HAVE_STRING_H || defined _LIBC
# ifndef _GNU_SOURCE
#  define _GNU_SOURCE	1
# endif
# include <string.h>
#else
# include <strings.h>
# ifndef memcpy
#  define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
# endif
#endif
#if !HAVE_STRCHR && !defined _LIBC
# ifndef strchr
#  define strchr index
# endif
#endif

#if defined _LIBC || defined HAVE_ARGZ_H
# include <argz.h>
#endif
#include <ctype.h>
#include <sys/types.h>

#if defined STDC_HEADERS || defined _LIBC
# include <stdlib.h>
#endif

#include "loadinfo.h"

/* On some strange systems still no definition of NULL is found.  Sigh!  */
#ifndef NULL
# if defined __STDC__ && __STDC__
#  define NULL ((void *) 0)
# else
#  define NULL 0
# endif
#endif

/* @@ end of prolog @@ */

#ifdef _LIBC
/* Rename the non ANSI C functions.  This is required by the standard
   because some ANSI C functions will require linking with this object
   file and the name space must not be polluted.  */
# ifndef stpcpy
#  define stpcpy(dest, src) __stpcpy(dest, src)
# endif
#else
# ifndef HAVE_STPCPY
static char *stpcpy PARAMS ((char *dest, const char *src));
# endif
#endif

/* Define function which are usually not available.  */

#if !defined _LIBC && !defined HAVE___ARGZ_COUNT
/* Returns the number of strings in ARGZ.  */
static size_t argz_count__ PARAMS ((const char *argz, size_t len));

static size_t
argz_count__ (argz, len)
     const char *argz;
     size_t len;
{
  size_t count = 0;
  while (len > 0)
    {
      size_t part_len = strlen (argz);
      argz += part_len + 1;
      len -= part_len + 1;
      count++;
    }
  return count;
}
# undef __argz_count
# define __argz_count(argz, len) argz_count__ (argz, len)
#endif	/* !_LIBC && !HAVE___ARGZ_COUNT */

#if !defined _LIBC && !defined HAVE___ARGZ_STRINGIFY
/* Make '\0' separated arg vector ARGZ printable by converting all the '\0's
   except the last into the character SEP.  */
static void argz_stringify__ PARAMS ((char *argz, size_t len, int sep));

static void
argz_stringify__ (argz, len, sep)
     char *argz;
     size_t len;
     int sep;
{
  while (len > 0)
    {
      size_t part_len = strlen (argz);
      argz += part_len;
      len -= part_len + 1;
      if (len > 0)
	*argz++ = sep;
    }
}
# undef __argz_stringify
# define __argz_stringify(argz, len, sep) argz_stringify__ (argz, len, sep)
#endif	/* !_LIBC && !HAVE___ARGZ_STRINGIFY */

#if !defined _LIBC && !defined HAVE___ARGZ_NEXT
static char *argz_next__ PARAMS ((char *argz, size_t argz_len,
				  const char *entry));

static char *
argz_next__ (argz, argz_len, entry)
     char *argz;
     size_t argz_len;
     const char *entry;
{
  if (entry)
    {
      if (entry < argz + argz_len)
        entry = strchr (entry, '\0') + 1;

      return entry >= argz + argz_len ? NULL : (char *) entry;
    }
  else
    if (argz_len > 0)
      return argz;
    else
      return 0;
}
# undef __argz_next
# define __argz_next(argz, len, entry) argz_next__ (argz, len, entry)
#endif	/* !_LIBC && !HAVE___ARGZ_NEXT */


/* Return number of bits set in X.  */
static int pop PARAMS ((int x));

static inline int
pop (x)
     int x;
{
  /* We assume that no more than 16 bits are used.  */
  x = ((x & ~0x5555) >> 1) + (x & 0x5555);
  x = ((x & ~0x3333) >> 2) + (x & 0x3333);
  x = ((x >> 4) + x) & 0x0f0f;
  x = ((x >> 8) + x) & 0xff;

  return x;
}

\f
struct loaded_l10nfile *
_nl_make_l10nflist (l10nfile_list, dirlist, dirlist_len, mask, language,
		    territory, codeset, normalized_codeset, modifier, special,
		    sponsor, revision, filename, do_allocate)
     struct loaded_l10nfile **l10nfile_list;
     const char *dirlist;
     size_t dirlist_len;
     int mask;
     const char *language;
     const char *territory;
     const char *codeset;
     const char *normalized_codeset;
     const char *modifier;
     const char *special;
     const char *sponsor;
     const char *revision;
     const char *filename;
     int do_allocate;
{
  char *abs_filename;
  struct loaded_l10nfile *last = NULL;
  struct loaded_l10nfile *retval;
  char *cp;
  size_t entries;
  int cnt;

  /* Allocate room for the full file name.  */
  abs_filename = (char *) malloc (dirlist_len
				  + strlen (language)
				  + ((mask & TERRITORY) != 0
				     ? strlen (territory) + 1 : 0)
				  + ((mask & XPG_CODESET) != 0
				     ? strlen (codeset) + 1 : 0)
				  + ((mask & XPG_NORM_CODESET) != 0
				     ? strlen (normalized_codeset) + 1 : 0)
				  + (((mask & XPG_MODIFIER) != 0
				      || (mask & CEN_AUDIENCE) != 0)
				     ? strlen (modifier) + 1 : 0)
				  + ((mask & CEN_SPECIAL) != 0
				     ? strlen (special) + 1 : 0)
				  + (((mask & CEN_SPONSOR) != 0
				      || (mask & CEN_REVISION) != 0)
				     ? (1 + ((mask & CEN_SPONSOR) != 0
					     ? strlen (sponsor) + 1 : 0)
					+ ((mask & CEN_REVISION) != 0
					   ? strlen (revision) + 1 : 0)) : 0)
				  + 1 + strlen (filename) + 1);

  if (abs_filename == NULL)
    return NULL;

  retval = NULL;
  last = NULL;

  /* Construct file name.  */
  memcpy (abs_filename, dirlist, dirlist_len);
  __argz_stringify (abs_filename, dirlist_len, ':');
  cp = abs_filename + (dirlist_len - 1);
  *cp++ = '/';
  cp = stpcpy (cp, language);

  if ((mask & TERRITORY) != 0)
    {
      *cp++ = '_';
      cp = stpcpy (cp, territory);
    }
  if ((mask & XPG_CODESET) != 0)
    {
      *cp++ = '.';
      cp = stpcpy (cp, codeset);
    }
  if ((mask & XPG_NORM_CODESET) != 0)
    {
      *cp++ = '.';
      cp = stpcpy (cp, normalized_codeset);
    }
  if ((mask & (XPG_MODIFIER | CEN_AUDIENCE)) != 0)
    {
      /* This component can be part of both syntaces but has different
	 leading characters.  For CEN we use `+', else `@'.  */
      *cp++ = (mask & CEN_AUDIENCE) != 0 ? '+' : '@';
      cp = stpcpy (cp, modifier);
    }
  if ((mask & CEN_SPECIAL) != 0)
    {
      *cp++ = '+';
      cp = stpcpy (cp, special);
    }
  if ((mask & (CEN_SPONSOR | CEN_REVISION)) != 0)
    {
      *cp++ = ',';
      if ((mask & CEN_SPONSOR) != 0)
	cp = stpcpy (cp, sponsor);
      if ((mask & CEN_REVISION) != 0)
	{
	  *cp++ = '_';
	  cp = stpcpy (cp, revision);
	}
    }

  *cp++ = '/';
  stpcpy (cp, filename);

  /* Look in list of already loaded domains whether it is already
     available.  */
  last = NULL;
  for (retval = *l10nfile_list; retval != NULL; retval = retval->next)
    if (retval->filename != NULL)
      {
	int compare = strcmp (retval->filename, abs_filename);
	if (compare == 0)
	  /* We found it!  */
	  break;
	if (compare < 0)
	  {
	    /* It's not in the list.  */
	    retval = NULL;
	    break;
	  }

	last = retval;
      }

  if (retval != NULL || do_allocate == 0)
    {
      free (abs_filename);
      return retval;
    }

  retval = (struct loaded_l10nfile *)
    malloc (sizeof (*retval) + (__argz_count (dirlist, dirlist_len)
				* (1 << pop (mask))
				* sizeof (struct loaded_l10nfile *)));
  if (retval == NULL)
    return NULL;

  retval->filename = abs_filename;
  retval->decided = (__argz_count (dirlist, dirlist_len) != 1
		     || ((mask & XPG_CODESET) != 0
			 && (mask & XPG_NORM_CODESET) != 0));
  retval->data = NULL;

  if (last == NULL)
    {
      retval->next = *l10nfile_list;
      *l10nfile_list = retval;
    }
  else
    {
      retval->next = last->next;
      last->next = retval;
    }

  entries = 0;
  /* If the DIRLIST is a real list the RETVAL entry corresponds not to
     a real file.  So we have to use the DIRLIST separation mechanism
     of the inner loop.  */
  cnt = __argz_count (dirlist, dirlist_len) == 1 ? mask - 1 : mask;
  for (; cnt >= 0; --cnt)
    if ((cnt & ~mask) == 0
	&& ((cnt & CEN_SPECIFIC) == 0 || (cnt & XPG_SPECIFIC) == 0)
	&& ((cnt & XPG_CODESET) == 0 || (cnt & XPG_NORM_CODESET) == 0))
      {
	/* Iterate over all elements of the DIRLIST.  */
	char *dir = NULL;

	while ((dir = __argz_next ((char *) dirlist, dirlist_len, dir))
	       != NULL)
	  retval->successor[entries++]
	    = _nl_make_l10nflist (l10nfile_list, dir, strlen (dir) + 1, cnt,
				  language, territory, codeset,
				  normalized_codeset, modifier, special,
				  sponsor, revision, filename, 1);
      }
  retval->successor[entries] = NULL;

  return retval;
}
\f
/* Normalize codeset name.  There is no standard for the codeset
   names.  Normalization allows the user to use any of the common
   names.  */
const char *
_nl_normalize_codeset (codeset, name_len)
     const unsigned char *codeset;
     size_t name_len;
{
  int len = 0;
  int only_digit = 1;
  char *retval;
  char *wp;
  size_t cnt;

  for (cnt = 0; cnt < name_len; ++cnt)
    if (isalnum (codeset[cnt]))
      {
	++len;

	if (isalpha (codeset[cnt]))
	  only_digit = 0;
      }

  retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1);

  if (retval != NULL)
    {
      if (only_digit)
	wp = stpcpy (retval, "iso");
      else
	wp = retval;

      for (cnt = 0; cnt < name_len; ++cnt)
	if (isalpha (codeset[cnt]))
	  *wp++ = tolower (codeset[cnt]);
	else if (isdigit (codeset[cnt]))
	  *wp++ = codeset[cnt];

      *wp = '\0';
    }

  return (const char *) retval;
}


/* @@ begin of epilog @@ */

/* We don't want libintl.a to depend on any other library.  So we
   avoid the non-standard function stpcpy.  In GNU C Library this
   function is available, though.  Also allow the symbol HAVE_STPCPY
   to be defined.  */
#if !_LIBC && !HAVE_STPCPY
static char *
stpcpy (dest, src)
     char *dest;
     const char *src;
{
  while ((*dest++ = *src++) != '\0')
    /* Do nothing. */ ;
  return dest - 1;
}
#endif
Commit	Line	Data
252b5132 RH	1	/* Handle list of needed message catalogs
252b5132 RH	2	Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
1491f078	3	Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
252b5132 RH	4
	5	This program is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License as published by
	7	the Free Software Foundation; either version 2, or (at your option)
	8	any later version.
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	You should have received a copy of the GNU General Public License
	16	along with this program; if not, write to the Free Software Foundation,
c09b15a9	17	Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132 RH	18
	19	#ifdef HAVE_CONFIG_H
	20	# include <config.h>
	21	#endif
	22
	23
	24	#if defined HAVE_STRING_H \|\| defined _LIBC
	25	# ifndef _GNU_SOURCE
	26	# define _GNU_SOURCE 1
	27	# endif
	28	# include <string.h>
	29	#else
	30	# include <strings.h>
	31	# ifndef memcpy
	32	# define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
	33	# endif
	34	#endif
	35	#if !HAVE_STRCHR && !defined _LIBC
	36	# ifndef strchr
	37	# define strchr index
	38	# endif
	39	#endif
	40
	41	#if defined _LIBC \|\| defined HAVE_ARGZ_H
	42	# include <argz.h>
	43	#endif
	44	#include <ctype.h>
	45	#include <sys/types.h>
	46
	47	#if defined STDC_HEADERS \|\| defined _LIBC
	48	# include <stdlib.h>
	49	#endif
	50
	51	#include "loadinfo.h"
	52
	53	/* On some strange systems still no definition of NULL is found. Sigh! */
	54	#ifndef NULL
	55	# if defined __STDC__ && __STDC__
	56	# define NULL ((void *) 0)
	57	# else
	58	# define NULL 0
	59	# endif
	60	#endif
	61
	62	/* @@ end of prolog @@ */
	63
	64	#ifdef _LIBC
	65	/* Rename the non ANSI C functions. This is required by the standard
	66	because some ANSI C functions will require linking with this object
	67	file and the name space must not be polluted. */
1491f078 BE	68	# ifndef stpcpy
	69	# define stpcpy(dest, src) __stpcpy(dest, src)
	70	# endif
252b5132 RH	71	#else
	72	# ifndef HAVE_STPCPY
	73	static char stpcpy PARAMS ((char dest, const char *src));
	74	# endif
	75	#endif
	76
	77	/* Define function which are usually not available. */
	78
	79	#if !defined _LIBC && !defined HAVE___ARGZ_COUNT
	80	/* Returns the number of strings in ARGZ. */
	81	static size_t argz_count__ PARAMS ((const char *argz, size_t len));
	82
	83	static size_t
	84	argz_count__ (argz, len)
	85	const char *argz;
	86	size_t len;
	87	{
	88	size_t count = 0;
	89	while (len > 0)
	90	{
	91	size_t part_len = strlen (argz);
	92	argz += part_len + 1;
	93	len -= part_len + 1;
	94	count++;
	95	}
	96	return count;
	97	}
	98	# undef __argz_count
	99	# define __argz_count(argz, len) argz_count__ (argz, len)
	100	#endif /* !_LIBC && !HAVE___ARGZ_COUNT */
	101
	102	#if !defined _LIBC && !defined HAVE___ARGZ_STRINGIFY
	103	/* Make '\0' separated arg vector ARGZ printable by converting all the '\0's
	104	except the last into the character SEP. */
	105	static void argz_stringify__ PARAMS ((char *argz, size_t len, int sep));
	106
	107	static void
	108	argz_stringify__ (argz, len, sep)
	109	char *argz;
	110	size_t len;
	111	int sep;
	112	{
	113	while (len > 0)
	114	{
	115	size_t part_len = strlen (argz);
	116	argz += part_len;
	117	len -= part_len + 1;
	118	if (len > 0)
	119	*argz++ = sep;
	120	}
	121	}
	122	# undef __argz_stringify
	123	# define __argz_stringify(argz, len, sep) argz_stringify__ (argz, len, sep)
	124	#endif /* !_LIBC && !HAVE___ARGZ_STRINGIFY */
	125
	126	#if !defined _LIBC && !defined HAVE___ARGZ_NEXT
	127	static char argz_next__ PARAMS ((char argz, size_t argz_len,
	128	const char *entry));
	129
	130	static char *
	131	argz_next__ (argz, argz_len, entry)
	132	char *argz;
	133	size_t argz_len;
	134	const char *entry;
135	{
136	if (entry)
137	{
138	if (entry < argz + argz_len)
139	entry = strchr (entry, '\0') + 1;
140
141	return entry >= argz + argz_len ? NULL : (char *) entry;
142	}
143	else
144	if (argz_len > 0)
145	return argz;
146	else
147	return 0;
148	}
149	# undef __argz_next
150	# define __argz_next(argz, len, entry) argz_next__ (argz, len, entry)
151	#endif /* !_LIBC && !HAVE___ARGZ_NEXT */
152
153
154	/* Return number of bits set in X. */
155	static int pop PARAMS ((int x));
156
157	static inline int
158	pop (x)
159	int x;
160	{
161	/* We assume that no more than 16 bits are used. */
162	x = ((x & ~0x5555) >> 1) + (x & 0x5555);
163	x = ((x & ~0x3333) >> 2) + (x & 0x3333);
164	x = ((x >> 4) + x) & 0x0f0f;
165	x = ((x >> 8) + x) & 0xff;
166
167	return x;
168	}
169
170	\f
171	struct loaded_l10nfile *
172	_nl_make_l10nflist (l10nfile_list, dirlist, dirlist_len, mask, language,
173	territory, codeset, normalized_codeset, modifier, special,
174	sponsor, revision, filename, do_allocate)
175	struct loaded_l10nfile **l10nfile_list;
176	const char *dirlist;
177	size_t dirlist_len;
178	int mask;
179	const char *language;
180	const char *territory;
181	const char *codeset;
182	const char *normalized_codeset;
183	const char *modifier;
184	const char *special;
185	const char *sponsor;
186	const char *revision;
187	const char *filename;
188	int do_allocate;
189	{
190	char *abs_filename;
191	struct loaded_l10nfile *last = NULL;
192	struct loaded_l10nfile *retval;
193	char *cp;
194	size_t entries;
195	int cnt;
196
197	/* Allocate room for the full file name. */
198	abs_filename = (char *) malloc (dirlist_len
199	+ strlen (language)
200	+ ((mask & TERRITORY) != 0
201	? strlen (territory) + 1 : 0)
202	+ ((mask & XPG_CODESET) != 0
203	? strlen (codeset) + 1 : 0)
204	+ ((mask & XPG_NORM_CODESET) != 0
205	? strlen (normalized_codeset) + 1 : 0)
206	+ (((mask & XPG_MODIFIER) != 0
207	\|\| (mask & CEN_AUDIENCE) != 0)
208	? strlen (modifier) + 1 : 0)
209	+ ((mask & CEN_SPECIAL) != 0
210	? strlen (special) + 1 : 0)
211	+ (((mask & CEN_SPONSOR) != 0
212	\|\| (mask & CEN_REVISION) != 0)
213	? (1 + ((mask & CEN_SPONSOR) != 0
214	? strlen (sponsor) + 1 : 0)
215	+ ((mask & CEN_REVISION) != 0
216	? strlen (revision) + 1 : 0)) : 0)
217	+ 1 + strlen (filename) + 1);
218
219	if (abs_filename == NULL)
220	return NULL;
221
222	retval = NULL;
223	last = NULL;
224
225	/* Construct file name. */
226	memcpy (abs_filename, dirlist, dirlist_len);
227	__argz_stringify (abs_filename, dirlist_len, ':');
228	cp = abs_filename + (dirlist_len - 1);
229	*cp++ = '/';
230	cp = stpcpy (cp, language);
231
232	if ((mask & TERRITORY) != 0)
233	{
234	*cp++ = '_';
235	cp = stpcpy (cp, territory);
236	}
237	if ((mask & XPG_CODESET) != 0)
238	{
239	*cp++ = '.';
240	cp = stpcpy (cp, codeset);
241	}
242	if ((mask & XPG_NORM_CODESET) != 0)
243	{
244	*cp++ = '.';
245	cp = stpcpy (cp, normalized_codeset);
246	}
247	if ((mask & (XPG_MODIFIER \| CEN_AUDIENCE)) != 0)
248	{
249	/* This component can be part of both syntaces but has different
250	leading characters. For CEN we use `+', else `@'. */
251	*cp++ = (mask & CEN_AUDIENCE) != 0 ? '+' : '@';
252	cp = stpcpy (cp, modifier);
253	}
254	if ((mask & CEN_SPECIAL) != 0)
255	{
256	*cp++ = '+';
257	cp = stpcpy (cp, special);
258	}
259	if ((mask & (CEN_SPONSOR \| CEN_REVISION)) != 0)
260	{
261	*cp++ = ',';
262	if ((mask & CEN_SPONSOR) != 0)
263	cp = stpcpy (cp, sponsor);
264	if ((mask & CEN_REVISION) != 0)
265	{
266	*cp++ = '_';
267	cp = stpcpy (cp, revision);
268	}
269	}
270
271	*cp++ = '/';
272	stpcpy (cp, filename);
273
274	/* Look in list of already loaded domains whether it is already
275	available. */
276	last = NULL;
277	for (retval = *l10nfile_list; retval != NULL; retval = retval->next)
278	if (retval->filename != NULL)
279	{
280	int compare = strcmp (retval->filename, abs_filename);
281	if (compare == 0)
282	/* We found it! */
283	break;
284	if (compare < 0)
285	{
286	/* It's not in the list. */
287	retval = NULL;
288	break;
289	}
290
291	last = retval;
292	}
293
294	if (retval != NULL \|\| do_allocate == 0)
295	{
296	free (abs_filename);
297	return retval;
298	}
299
300	retval = (struct loaded_l10nfile *)
301	malloc (sizeof (*retval) + (__argz_count (dirlist, dirlist_len)
302	* (1 << pop (mask))
303	* sizeof (struct loaded_l10nfile *)));
304	if (retval == NULL)
305	return NULL;
306
307	retval->filename = abs_filename;
308	retval->decided = (__argz_count (dirlist, dirlist_len) != 1
309	\|\| ((mask & XPG_CODESET) != 0
310	&& (mask & XPG_NORM_CODESET) != 0));
311	retval->data = NULL;
312
313	if (last == NULL)
314	{
315	retval->next = *l10nfile_list;
316	*l10nfile_list = retval;
317	}
318	else
319	{
320	retval->next = last->next;
321	last->next = retval;
322	}
323
324	entries = 0;
325	/* If the DIRLIST is a real list the RETVAL entry corresponds not to
326	a real file. So we have to use the DIRLIST separation mechanism
327	of the inner loop. */
328	cnt = __argz_count (dirlist, dirlist_len) == 1 ? mask - 1 : mask;
329	for (; cnt >= 0; --cnt)
330	if ((cnt & ~mask) == 0
331	&& ((cnt & CEN_SPECIFIC) == 0 \|\| (cnt & XPG_SPECIFIC) == 0)
332	&& ((cnt & XPG_CODESET) == 0 \|\| (cnt & XPG_NORM_CODESET) == 0))
333	{
334	/* Iterate over all elements of the DIRLIST. */
335	char *dir = NULL;
336
337	while ((dir = __argz_next ((char *) dirlist, dirlist_len, dir))
338	!= NULL)
339	retval->successor[entries++]
340	= _nl_make_l10nflist (l10nfile_list, dir, strlen (dir) + 1, cnt,
341	language, territory, codeset,
342	normalized_codeset, modifier, special,
343	sponsor, revision, filename, 1);
344	}
345	retval->successor[entries] = NULL;
346
347	return retval;
348	}
349	\f
350	/* Normalize codeset name. There is no standard for the codeset
351	names. Normalization allows the user to use any of the common
352	names. */
353	const char *
354	_nl_normalize_codeset (codeset, name_len)
1491f078	355	const unsigned char *codeset;
252b5132 RH	356	size_t name_len;
	357	{
	358	int len = 0;
	359	int only_digit = 1;
	360	char *retval;
	361	char *wp;
	362	size_t cnt;
	363
	364	for (cnt = 0; cnt < name_len; ++cnt)
	365	if (isalnum (codeset[cnt]))
	366	{
	367	++len;
	368
	369	if (isalpha (codeset[cnt]))
	370	only_digit = 0;
	371	}
	372
	373	retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1);
	374
	375	if (retval != NULL)
	376	{
	377	if (only_digit)
	378	wp = stpcpy (retval, "iso");
	379	else
	380	wp = retval;
	381
	382	for (cnt = 0; cnt < name_len; ++cnt)
	383	if (isalpha (codeset[cnt]))
	384	*wp++ = tolower (codeset[cnt]);
	385	else if (isdigit (codeset[cnt]))
	386	*wp++ = codeset[cnt];
	387
	388	*wp = '\0';
	389	}
	390
	391	return (const char *) retval;
	392	}
	393
	394
	395	/* @@ begin of epilog @@ */
	396
	397	/* We don't want libintl.a to depend on any other library. So we
	398	avoid the non-standard function stpcpy. In GNU C Library this
	399	function is available, though. Also allow the symbol HAVE_STPCPY
	400	to be defined. */
	401	#if !_LIBC && !HAVE_STPCPY
	402	static char *
	403	stpcpy (dest, src)
	404	char *dest;
	405	const char *src;
	406	{
	407	while ((dest++ = src++) != '\0')
	408	/* Do nothing. */ ;
	409	return dest - 1;
	410	}
	411	#endif