/* Copyright (C) 1998-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.

   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; version 2 of the License, 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, see <http://www.gnu.org/licenses/>.  */

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <langinfo.h>

#include <stdlib.h>

#include <string.h>

#include <stdint.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)

	{

	  record_warning (_("\

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)						      \

	record_warning (_("%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)

    {

      /* We don't accept/parse this category, so skip it early.  */

      if (num == LC_ALL)

	continue;

      if (identification->category[num] == NULL)

	{

	  if (verbose && ! nothing)

	    record_warning (_("\

%s: no identification for category `%s'"), "LC_IDENTIFICATION",

			    category_name[num]);

	  identification->category[num] = "";

	}

      else

	{

	  /* Only list the standards we care about.  This is based on the

	     ISO 30112 WD10 [2014] standard which supersedes all previous

	     revisions of the ISO 14652 standard.  */

	  static const char * const standards[] =

	    {

	      "posix:1993",

	      "i18n:2004",

	      "i18n:2012",

	    };

	  size_t i;

	  bool matched = false;

	  for (i = 0; i < sizeof (standards) / sizeof (standards[0]); ++i)

	    if (strcmp (identification->category[num], standards[i]) == 0)

	      matched = true;

	  if (matched != true)

	    record_error (0, 0, _("\

%s: unknown standard `%s' for category `%s'"),

			  "LC_IDENTIFICATION",

			  identification->category[num],

			  category_name[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 locale_file file;

  size_t num;

  init_locale_data (&file, _NL_ITEM_INDEX (_NL_NUM_LC_IDENTIFICATION));

  add_locale_string (&file, identification->title);

  add_locale_string (&file, identification->source);

  add_locale_string (&file, identification->address);

  add_locale_string (&file, identification->contact);

  add_locale_string (&file, identification->email);

  add_locale_string (&file, identification->tel);

  add_locale_string (&file, identification->fax);

  add_locale_string (&file, identification->language);

  add_locale_string (&file, identification->territory);

  add_locale_string (&file, identification->audience);

  add_locale_string (&file, identification->application);

  add_locale_string (&file, identification->abbreviation);

  add_locale_string (&file, identification->revision);

  add_locale_string (&file, identification->date);

  start_locale_structure (&file;;

  for (num = 0; num < __LC_LAST; ++num)

    if (num != LC_ALL)

      add_locale_string (&file, identification->category[num]);

  end_locale_structure (&file;;

  add_locale_string (&file, charmap->code_set_name);

  write_locale_data (output_path, LC_IDENTIFICATION, "LC_IDENTIFICATION",

		     &file;;

}

/* 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");

}