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-rw-r--r--intl/l10nflist.c262
1 files changed, 262 insertions, 0 deletions
diff --git a/intl/l10nflist.c b/intl/l10nflist.c
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+/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+
+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
+published by the Free Software Foundation; either version 2 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
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <argz.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "loadinfo.h"
+
+/* Return number of bits set in X. */
+static int pop __P ((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;
+}
+
+
+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
+ ? strlen (sponsor) + 1 : 0)
+ + ((mask & CEN_REVISION) != 0
+ ? strlen (revision) + 1 : 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) != 0)
+ {
+ *cp++ = ',';
+ 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 correcponds not to
+ a real file. So we have to use the DIRLIST separation machanism
+ 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;
+}
+
+/* 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 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;
+}
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