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ld-identification.c

/* Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.

   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

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

#include <error.h>
#include <langinfo.h>
#include <stdlib.h>
#include <string.h>
#include <sys/uio.h>

#include <assert.h>

#include "localedef.h"
#include "localeinfo.h"
#include "locfile.h"


/* The real definition of the struct for the LC_IDENTIFICATION locale.  */
struct locale_identification_t
{
  const char *title;
  const char *source;
  const char *address;
  const char *contact;
  const char *email;
  const char *tel;
  const char *fax;
  const char *language;
  const char *territory;
  const char *audience;
  const char *application;
  const char *abbreviation;
  const char *revision;
  const char *date;
  const char *category[__LC_LAST];
};


static const char *category_name[__LC_LAST] =
{
  [LC_CTYPE] = "LC_CTYPE",
  [LC_NUMERIC] = "LC_NUMERIC",
  [LC_TIME] = "LC_TIME",
  [LC_COLLATE] = "LC_COLLATE",
  [LC_MONETARY] = "LC_MONETARY",
  [LC_MESSAGES] = "LC_MESSAGES",
  [LC_ALL] = "LC_ALL",
  [LC_PAPER] = "LC_PAPER",
  [LC_NAME] = "LC_NAME",
  [LC_ADDRESS] = "LC_ADDRESS",
  [LC_TELEPHONE] = "LC_TELEPHONE",
  [LC_MEASUREMENT] = "LC_MEASUREMENT",
  [LC_IDENTIFICATION] = "LC_IDENTIFICATION"
};


static void
identification_startup (struct linereader *lr, struct localedef_t *locale,
                  int ignore_content)
{
  if (!ignore_content)
    {
      locale->categories[LC_IDENTIFICATION].identification =
      (struct locale_identification_t *)
      xcalloc (1, sizeof (struct locale_identification_t));

      locale->categories[LC_IDENTIFICATION].identification->category[LC_ALL] =
      "";
    }

  if (lr != NULL)
    {
      lr->translate_strings = 1;
      lr->return_widestr = 0;
    }
}


void
identification_finish (struct localedef_t *locale,
                   const struct charmap_t *charmap)
{
  struct locale_identification_t *identification
    = locale->categories[LC_IDENTIFICATION].identification;
  int nothing = 0;
  size_t num;

  /* Now resolve copying and also handle completely missing definitions.  */
  if (identification == NULL)
    {
      /* First see whether we were supposed to copy.  If yes, find the
       actual definition.  */
      if (locale->copy_name[LC_IDENTIFICATION] != NULL)
      {
        /* Find the copying locale.  This has to happen transitively since
           the locale we are copying from might also copying another one.  */
        struct localedef_t *from = locale;

        do
          from = find_locale (LC_IDENTIFICATION,
                        from->copy_name[LC_IDENTIFICATION],
                        from->repertoire_name, charmap);
        while (from->categories[LC_IDENTIFICATION].identification == NULL
             && from->copy_name[LC_IDENTIFICATION] != NULL);

        identification = locale->categories[LC_IDENTIFICATION].identification
          = from->categories[LC_IDENTIFICATION].identification;
      }

      /* If there is still no definition issue an warning and create an
       empty one.  */
      if (identification == NULL)
      {
        if (! be_quiet)
          WITH_CUR_LOCALE (error (0, 0, _("\
No definition for %s category found"), "LC_IDENTIFICATION"));
        identification_startup (NULL, locale, 0);
        identification
          = locale->categories[LC_IDENTIFICATION].identification;
        nothing = 1;
      }
    }

#define TEST_ELEM(cat) \
  if (identification->cat == NULL)                                \
    {                                                       \
      if (verbose && ! nothing)                                         \
      WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),          \
                              "LC_IDENTIFICATION", #cat));              \
      identification->cat = "";                                         \
    }

  TEST_ELEM (title);
  TEST_ELEM (source);
  TEST_ELEM (address);
  TEST_ELEM (contact);
  TEST_ELEM (email);
  TEST_ELEM (tel);
  TEST_ELEM (fax);
  TEST_ELEM (language);
  TEST_ELEM (territory);
  TEST_ELEM (audience);
  TEST_ELEM (application);
  TEST_ELEM (abbreviation);
  TEST_ELEM (revision);
  TEST_ELEM (date);

  for (num = 0; num < __LC_LAST; ++num)
    if (num != LC_ALL && identification->category[num] == NULL)
      {
      if (verbose && ! nothing)
        WITH_CUR_LOCALE (error (0, 0, _("\
%s: no identification for category `%s'"),
                          "LC_IDENTIFICATION", category_name[num]));
      identification->category[num] = "";
      }
}


void
identification_output (struct localedef_t *locale,
                   const struct charmap_t *charmap,
                   const char *output_path)
{
  struct locale_identification_t *identification
    = locale->categories[LC_IDENTIFICATION].identification;
  struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_IDENTIFICATION)
              + (__LC_LAST - 2)];
  struct locale_file data;
  uint32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_IDENTIFICATION)];
  size_t cnt = 0;
  size_t num;
  size_t last_idx;

  data.magic = LIMAGIC (LC_IDENTIFICATION);
  data.n = _NL_ITEM_INDEX (_NL_NUM_LC_IDENTIFICATION);
  iov[cnt].iov_base = (void *) &data;
  iov[cnt].iov_len = sizeof (data);
  ++cnt;

  iov[cnt].iov_base = (void *) idx;
  iov[cnt].iov_len = sizeof (idx);
  ++cnt;

  idx[cnt - 2] = iov[0].iov_len + iov[1].iov_len;
  iov[cnt].iov_base = (void *) identification->title;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->source;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->address;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->contact;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->email;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->tel;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->fax;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->language;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->territory;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->audience;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->application;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->abbreviation;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->revision;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) identification->date;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  last_idx = cnt - 1;
  idx[last_idx] = idx[cnt - 2];
  for (num = 0; num < __LC_LAST; ++num)
    if (num != LC_ALL)
      {
      iov[cnt].iov_base = (void *) identification->category[num];
      iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
      idx[last_idx] += iov[cnt].iov_len;
      ++cnt;
      }

  assert (last_idx == _NL_ITEM_INDEX (_NL_NUM_LC_IDENTIFICATION) - 1);
  iov[cnt].iov_base = (void *) charmap->code_set_name;
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  assert (cnt == (2 + _NL_ITEM_INDEX (_NL_NUM_LC_IDENTIFICATION)
              + (__LC_LAST - 2)));

  write_locale_data (output_path, LC_IDENTIFICATION, "LC_IDENTIFICATION", cnt,
                 iov);
}


/* The parser for the LC_IDENTIFICATION section of the locale definition.  */
void
identification_read (struct linereader *ldfile, struct localedef_t *result,
             const struct charmap_t *charmap, const char *repertoire_name,
             int ignore_content)
{
  struct locale_identification_t *identification;
  struct token *now;
  struct token *arg;
  struct token *cattok;
  int category;
  enum token_t nowtok;

  /* The rest of the line containing `LC_IDENTIFICATION' must be free.  */
  lr_ignore_rest (ldfile, 1);

  do
    {
      now = lr_token (ldfile, charmap, result, NULL, verbose);
      nowtok = now->tok;
    }
  while (nowtok == tok_eol);

  /* If we see `copy' now we are almost done.  */
  if (nowtok == tok_copy)
    {
      handle_copy (ldfile, charmap, repertoire_name, result,
               tok_lc_identification, LC_IDENTIFICATION,
               "LC_IDENTIFICATION", ignore_content);
      return;
    }

  /* Prepare the data structures.  */
  identification_startup (ldfile, result, ignore_content);
  identification = result->categories[LC_IDENTIFICATION].identification;

  while (1)
    {
      /* Of course we don't proceed beyond the end of file.  */
      if (nowtok == tok_eof)
      break;

      /* Ignore empty lines.  */
      if (nowtok == tok_eol)
      {
        now = lr_token (ldfile, charmap, result, NULL, verbose);
        nowtok = now->tok;
        continue;
      }

      switch (nowtok)
      {
#define STR_ELEM(cat) \
      case tok_##cat:                                             \
        /* Ignore the rest of the line if we don't need the input of          \
           this line.  */                                         \
        if (ignore_content)                                       \
          {                                                 \
            lr_ignore_rest (ldfile, 0);                           \
            break;                                                \
          }                                                 \
                                                            \
        arg = lr_token (ldfile, charmap, result, NULL, verbose);        \
        if (arg->tok != tok_string)                               \
          goto err_label;                                         \
        if (identification->cat != NULL)                          \
          lr_error (ldfile, _("\
%s: field `%s' declared more than once"), "LC_IDENTIFICATION", #cat);         \
        else if (!ignore_content && arg->val.str.startmb == NULL)       \
          {                                                 \
            lr_error (ldfile, _("\
%s: unknown character in field `%s'"), "LC_IDENTIFICATION", #cat);            \
            identification->cat = "";                                   \
          }                                                 \
        else if (!ignore_content)                                 \
          identification->cat = arg->val.str.startmb;                   \
        break

        STR_ELEM (title);
        STR_ELEM (source);
        STR_ELEM (address);
        STR_ELEM (contact);
        STR_ELEM (email);
        STR_ELEM (tel);
        STR_ELEM (fax);
        STR_ELEM (language);
        STR_ELEM (territory);
        STR_ELEM (audience);
        STR_ELEM (application);
        STR_ELEM (abbreviation);
        STR_ELEM (revision);
        STR_ELEM (date);

      case tok_category:
        /* Ignore the rest of the line if we don't need the input of
           this line.  */
        if (ignore_content)
          {
            lr_ignore_rest (ldfile, 0);
            break;
          }

        /* We expect two operands.  */
        arg = lr_token (ldfile, charmap, result, NULL, verbose);
        if (arg->tok != tok_string && arg->tok != tok_ident)
          goto err_label;
        /* Next is a semicolon.  */
        cattok = lr_token (ldfile, charmap, result, NULL, verbose);
        if (cattok->tok != tok_semicolon)
          goto err_label;
        /* Now a LC_xxx identifier.  */
        cattok = lr_token (ldfile, charmap, result, NULL, verbose);
        switch (cattok->tok)
          {
#define CATEGORY(lname, uname) \
          case tok_lc_##lname:                                    \
            category = LC_##uname;                                \
            break

            CATEGORY (identification, IDENTIFICATION);
            CATEGORY (ctype, CTYPE);
            CATEGORY (collate, COLLATE);
            CATEGORY (time, TIME);
            CATEGORY (numeric, NUMERIC);
            CATEGORY (monetary, MONETARY);
            CATEGORY (messages, MESSAGES);
            CATEGORY (paper, PAPER);
            CATEGORY (name, NAME);
            CATEGORY (address, ADDRESS);
            CATEGORY (telephone, TELEPHONE);
            CATEGORY (measurement, MEASUREMENT);

          default:
            goto err_label;
          }
        if (identification->category[category] != NULL)
          {
            lr_error (ldfile, _("\
%s: duplicate category version definition"), "LC_IDENTIFICATION");
            free (arg->val.str.startmb);
          }
        else
          identification->category[category] = arg->val.str.startmb;
        break;

      case tok_end:
        /* Next we assume `LC_IDENTIFICATION'.  */
        arg = lr_token (ldfile, charmap, result, NULL, verbose);
        if (arg->tok == tok_eof)
          break;
        if (arg->tok == tok_eol)
          lr_error (ldfile, _("%s: incomplete `END' line"),
                  "LC_IDENTIFICATION");
        else if (arg->tok != tok_lc_identification)
          lr_error (ldfile, _("\
%1$s: definition does not end with `END %1$s'"), "LC_IDENTIFICATION");
        lr_ignore_rest (ldfile, arg->tok == tok_lc_identification);
        return;

      default:
      err_label:
        SYNTAX_ERROR (_("%s: syntax error"), "LC_IDENTIFICATION");
      }

      /* Prepare for the next round.  */
      now = lr_token (ldfile, charmap, result, NULL, verbose);
      nowtok = now->tok;
    }

  /* When we come here we reached the end of the file.  */
  lr_error (ldfile, _("%s: premature end of file"), "LC_IDENTIFICATION");
}

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