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[/] [or1k/] [trunk/] [insight/] [intl/] [l10nflist.c] - Blame information for rev 1780

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1 578 markom
/* Handle list of needed message catalogs
2
   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
3
   Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
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,
17
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
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
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#  define _GNU_SOURCE   1
27
# endif
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# include <string.h>
29
#else
30
# include <strings.h>
31
# ifndef memcpy
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#  define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
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# endif
34
#endif
35
#if !HAVE_STRCHR && !defined _LIBC
36
# ifndef strchr
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#  define strchr index
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# 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!  */
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#ifndef NULL
55
# if defined __STDC__ && __STDC__
56
#  define NULL ((void *) 0)
57
# else
58
#  define NULL 0
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# 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.  */
68
# define stpcpy(dest, src) __stpcpy(dest, src)
69
#else
70
# ifndef HAVE_STPCPY
71
static char *stpcpy PARAMS ((char *dest, const char *src));
72
# endif
73
#endif
74
 
75
/* Define function which are usually not available.  */
76
 
77
#if !defined _LIBC && !defined HAVE___ARGZ_COUNT
78
/* Returns the number of strings in ARGZ.  */
79
static size_t argz_count__ PARAMS ((const char *argz, size_t len));
80
 
81
static size_t
82
argz_count__ (argz, len)
83
     const char *argz;
84
     size_t len;
85
{
86
  size_t count = 0;
87
  while (len > 0)
88
    {
89
      size_t part_len = strlen (argz);
90
      argz += part_len + 1;
91
      len -= part_len + 1;
92
      count++;
93
    }
94
  return count;
95
}
96
# undef __argz_count
97
# define __argz_count(argz, len) argz_count__ (argz, len)
98
#endif  /* !_LIBC && !HAVE___ARGZ_COUNT */
99
 
100
#if !defined _LIBC && !defined HAVE___ARGZ_STRINGIFY
101
/* Make '\0' separated arg vector ARGZ printable by converting all the '\0's
102
   except the last into the character SEP.  */
103
static void argz_stringify__ PARAMS ((char *argz, size_t len, int sep));
104
 
105
static void
106
argz_stringify__ (argz, len, sep)
107
     char *argz;
108
     size_t len;
109
     int sep;
110
{
111
  while (len > 0)
112
    {
113
      size_t part_len = strlen (argz);
114
      argz += part_len;
115
      len -= part_len + 1;
116
      if (len > 0)
117
        *argz++ = sep;
118
    }
119
}
120
# undef __argz_stringify
121
# define __argz_stringify(argz, len, sep) argz_stringify__ (argz, len, sep)
122
#endif  /* !_LIBC && !HAVE___ARGZ_STRINGIFY */
123
 
124
#if !defined _LIBC && !defined HAVE___ARGZ_NEXT
125
static char *argz_next__ PARAMS ((char *argz, size_t argz_len,
126
                                  const char *entry));
127
 
128
static char *
129
argz_next__ (argz, argz_len, entry)
130
     char *argz;
131
     size_t argz_len;
132
     const char *entry;
133
{
134
  if (entry)
135
    {
136
      if (entry < argz + argz_len)
137
        entry = strchr (entry, '\0') + 1;
138
 
139
      return entry >= argz + argz_len ? NULL : (char *) entry;
140
    }
141
  else
142
    if (argz_len > 0)
143
      return argz;
144
    else
145
      return 0;
146
}
147
# undef __argz_next
148
# define __argz_next(argz, len, entry) argz_next__ (argz, len, entry)
149
#endif  /* !_LIBC && !HAVE___ARGZ_NEXT */
150
 
151
 
152
/* Return number of bits set in X.  */
153
static int pop PARAMS ((int x));
154
 
155
static inline int
156
pop (x)
157
     int x;
158
{
159
  /* We assume that no more than 16 bits are used.  */
160
  x = ((x & ~0x5555) >> 1) + (x & 0x5555);
161
  x = ((x & ~0x3333) >> 2) + (x & 0x3333);
162
  x = ((x >> 4) + x) & 0x0f0f;
163
  x = ((x >> 8) + x) & 0xff;
164
 
165
  return x;
166
}
167
 
168
 
169
struct loaded_l10nfile *
170
_nl_make_l10nflist (l10nfile_list, dirlist, dirlist_len, mask, language,
171
                    territory, codeset, normalized_codeset, modifier, special,
172
                    sponsor, revision, filename, do_allocate)
173
     struct loaded_l10nfile **l10nfile_list;
174
     const char *dirlist;
175
     size_t dirlist_len;
176
     int mask;
177
     const char *language;
178
     const char *territory;
179
     const char *codeset;
180
     const char *normalized_codeset;
181
     const char *modifier;
182
     const char *special;
183
     const char *sponsor;
184
     const char *revision;
185
     const char *filename;
186
     int do_allocate;
187
{
188
  char *abs_filename;
189
  struct loaded_l10nfile *last = NULL;
190
  struct loaded_l10nfile *retval;
191
  char *cp;
192
  size_t entries;
193
  int cnt;
194
 
195
  /* Allocate room for the full file name.  */
196
  abs_filename = (char *) malloc (dirlist_len
197
                                  + strlen (language)
198
                                  + ((mask & TERRITORY) != 0
199
                                     ? strlen (territory) + 1 : 0)
200
                                  + ((mask & XPG_CODESET) != 0
201
                                     ? strlen (codeset) + 1 : 0)
202
                                  + ((mask & XPG_NORM_CODESET) != 0
203
                                     ? strlen (normalized_codeset) + 1 : 0)
204
                                  + (((mask & XPG_MODIFIER) != 0
205
                                      || (mask & CEN_AUDIENCE) != 0)
206
                                     ? strlen (modifier) + 1 : 0)
207
                                  + ((mask & CEN_SPECIAL) != 0
208
                                     ? strlen (special) + 1 : 0)
209
                                  + (((mask & CEN_SPONSOR) != 0
210
                                      || (mask & CEN_REVISION) != 0)
211
                                     ? (1 + ((mask & CEN_SPONSOR) != 0
212
                                             ? strlen (sponsor) + 1 : 0)
213
                                        + ((mask & CEN_REVISION) != 0
214
                                           ? strlen (revision) + 1 : 0)) : 0)
215
                                  + 1 + strlen (filename) + 1);
216
 
217
  if (abs_filename == NULL)
218
    return NULL;
219
 
220
  retval = NULL;
221
  last = NULL;
222
 
223
  /* Construct file name.  */
224
  memcpy (abs_filename, dirlist, dirlist_len);
225
  __argz_stringify (abs_filename, dirlist_len, ':');
226
  cp = abs_filename + (dirlist_len - 1);
227
  *cp++ = '/';
228
  cp = stpcpy (cp, language);
229
 
230
  if ((mask & TERRITORY) != 0)
231
    {
232
      *cp++ = '_';
233
      cp = stpcpy (cp, territory);
234
    }
235
  if ((mask & XPG_CODESET) != 0)
236
    {
237
      *cp++ = '.';
238
      cp = stpcpy (cp, codeset);
239
    }
240
  if ((mask & XPG_NORM_CODESET) != 0)
241
    {
242
      *cp++ = '.';
243
      cp = stpcpy (cp, normalized_codeset);
244
    }
245
  if ((mask & (XPG_MODIFIER | CEN_AUDIENCE)) != 0)
246
    {
247
      /* This component can be part of both syntaces but has different
248
         leading characters.  For CEN we use `+', else `@'.  */
249
      *cp++ = (mask & CEN_AUDIENCE) != 0 ? '+' : '@';
250
      cp = stpcpy (cp, modifier);
251
    }
252
  if ((mask & CEN_SPECIAL) != 0)
253
    {
254
      *cp++ = '+';
255
      cp = stpcpy (cp, special);
256
    }
257
  if ((mask & (CEN_SPONSOR | CEN_REVISION)) != 0)
258
    {
259
      *cp++ = ',';
260
      if ((mask & CEN_SPONSOR) != 0)
261
        cp = stpcpy (cp, sponsor);
262
      if ((mask & CEN_REVISION) != 0)
263
        {
264
          *cp++ = '_';
265
          cp = stpcpy (cp, revision);
266
        }
267
    }
268
 
269
  *cp++ = '/';
270
  stpcpy (cp, filename);
271
 
272
  /* Look in list of already loaded domains whether it is already
273
     available.  */
274
  last = NULL;
275
  for (retval = *l10nfile_list; retval != NULL; retval = retval->next)
276
    if (retval->filename != NULL)
277
      {
278
        int compare = strcmp (retval->filename, abs_filename);
279
        if (compare == 0)
280
          /* We found it!  */
281
          break;
282
        if (compare < 0)
283
          {
284
            /* It's not in the list.  */
285
            retval = NULL;
286
            break;
287
          }
288
 
289
        last = retval;
290
      }
291
 
292
  if (retval != NULL || do_allocate == 0)
293
    {
294
      free (abs_filename);
295
      return retval;
296
    }
297
 
298
  retval = (struct loaded_l10nfile *)
299
    malloc (sizeof (*retval) + (__argz_count (dirlist, dirlist_len)
300
                                * (1 << pop (mask))
301
                                * sizeof (struct loaded_l10nfile *)));
302
  if (retval == NULL)
303
    return NULL;
304
 
305
  retval->filename = abs_filename;
306
  retval->decided = (__argz_count (dirlist, dirlist_len) != 1
307
                     || ((mask & XPG_CODESET) != 0
308
                         && (mask & XPG_NORM_CODESET) != 0));
309
  retval->data = NULL;
310
 
311
  if (last == NULL)
312
    {
313
      retval->next = *l10nfile_list;
314
      *l10nfile_list = retval;
315
    }
316
  else
317
    {
318
      retval->next = last->next;
319
      last->next = retval;
320
    }
321
 
322
  entries = 0;
323
  /* If the DIRLIST is a real list the RETVAL entry corresponds not to
324
     a real file.  So we have to use the DIRLIST separation mechanism
325
     of the inner loop.  */
326
  cnt = __argz_count (dirlist, dirlist_len) == 1 ? mask - 1 : mask;
327
  for (; cnt >= 0; --cnt)
328
    if ((cnt & ~mask) == 0
329
        && ((cnt & CEN_SPECIFIC) == 0 || (cnt & XPG_SPECIFIC) == 0)
330
        && ((cnt & XPG_CODESET) == 0 || (cnt & XPG_NORM_CODESET) == 0))
331
      {
332
        /* Iterate over all elements of the DIRLIST.  */
333
        char *dir = NULL;
334
 
335
        while ((dir = __argz_next ((char *) dirlist, dirlist_len, dir))
336
               != NULL)
337
          retval->successor[entries++]
338
            = _nl_make_l10nflist (l10nfile_list, dir, strlen (dir) + 1, cnt,
339
                                  language, territory, codeset,
340
                                  normalized_codeset, modifier, special,
341
                                  sponsor, revision, filename, 1);
342
      }
343
  retval->successor[entries] = NULL;
344
 
345
  return retval;
346
}
347
 
348
/* Normalize codeset name.  There is no standard for the codeset
349
   names.  Normalization allows the user to use any of the common
350
   names.  */
351
const char *
352
_nl_normalize_codeset (codeset, name_len)
353
     const char *codeset;
354
     size_t name_len;
355
{
356
  int len = 0;
357
  int only_digit = 1;
358
  char *retval;
359
  char *wp;
360
  size_t cnt;
361
 
362
  for (cnt = 0; cnt < name_len; ++cnt)
363
    if (isalnum (codeset[cnt]))
364
      {
365
        ++len;
366
 
367
        if (isalpha (codeset[cnt]))
368
          only_digit = 0;
369
      }
370
 
371
  retval = (char *) malloc ((only_digit ? 3 : 0) + len + 1);
372
 
373
  if (retval != NULL)
374
    {
375
      if (only_digit)
376
        wp = stpcpy (retval, "iso");
377
      else
378
        wp = retval;
379
 
380
      for (cnt = 0; cnt < name_len; ++cnt)
381
        if (isalpha (codeset[cnt]))
382
          *wp++ = tolower (codeset[cnt]);
383
        else if (isdigit (codeset[cnt]))
384
          *wp++ = codeset[cnt];
385
 
386
      *wp = '\0';
387
    }
388
 
389
  return (const char *) retval;
390
}
391
 
392
 
393
/* @@ begin of epilog @@ */
394
 
395
/* We don't want libintl.a to depend on any other library.  So we
396
   avoid the non-standard function stpcpy.  In GNU C Library this
397
   function is available, though.  Also allow the symbol HAVE_STPCPY
398
   to be defined.  */
399
#if !_LIBC && !HAVE_STPCPY
400
static char *
401
stpcpy (dest, src)
402
     char *dest;
403
     const char *src;
404
{
405
  while ((*dest++ = *src++) != '\0')
406
    /* Do nothing. */ ;
407
  return dest - 1;
408
}
409
#endif

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