text: /* Copyright (C) 1995-2017 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
     Contributed by Ulrich Drepper <drepper@gnu.org>, 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; 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 <string.h>
  #include <stdint.h>
  #include <sys/uio.h>
  
  #include <assert.h>
  
  #include "localedef.h"
  #include "linereader.h"
  #include "localeinfo.h"
  #include "locfile.h"
  
  
  /* The real definition of the struct for the LC_NUMERIC locale.  */
  struct locale_numeric_t
  {
    const char *decimal_point;
    const char *thousands_sep;
    char *grouping;
    size_t grouping_len;
    uint32_t decimal_point_wc;
    uint32_t thousands_sep_wc;
  };
  
  
  static void
  numeric_startup (struct linereader *lr, struct localedef_t *locale,
  		 int ignore_content)
  {
    if (!ignore_content)
      {
        locale->categories[LC_NUMERIC].numeric =
  	(struct locale_numeric_t *) xcalloc (1,
  					     sizeof (struct locale_numeric_t));
      }
  
    if (lr != NULL)
      {
        lr->translate_strings = 1;
        lr->return_widestr = 0;
      }
  }
  
  
  void
  numeric_finish (struct localedef_t *locale, const struct charmap_t *charmap)
  {
    struct locale_numeric_t *numeric = locale->categories[LC_NUMERIC].numeric;
    int nothing = 0;
  
    /* Now resolve copying and also handle completely missing definitions.  */
    if (numeric == NULL)
      {
        /* First see whether we were supposed to copy.  If yes, find the
  	 actual definition.  */
        if (locale->copy_name[LC_NUMERIC] != 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_NUMERIC, from->copy_name[LC_NUMERIC],
  				from->repertoire_name, charmap);
  	  while (from->categories[LC_NUMERIC].numeric == NULL
  		 && from->copy_name[LC_NUMERIC] != NULL);
  
  	  numeric = locale->categories[LC_NUMERIC].numeric
  	    = from->categories[LC_NUMERIC].numeric;
  	}
  
        /* If there is still no definition issue an warning and create an
  	 empty one.  */
        if (numeric == NULL)
  	{
  	  if (! be_quiet)
  	    WITH_CUR_LOCALE (error (0, 0, _("\
  No definition for %s category found"), "LC_NUMERIC"));
  	  numeric_startup (NULL, locale, 0);
  	  numeric = locale->categories[LC_NUMERIC].numeric;
  	  nothing = 1;
  	}
      }
  
    /* The decimal point must not be empty.  This is not said explicitly
       in POSIX but ANSI C (ISO/IEC 9899) says in 4.4.2.1 it has to be
       != "".  */
    if (numeric->decimal_point == NULL)
      {
        if (! be_quiet && ! nothing)
  	WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),
  				"LC_NUMERIC", "decimal_point"));
        numeric->decimal_point = ".";
      }
    else if (numeric->decimal_point[0] == '\0' && ! be_quiet && ! nothing)
      {
        WITH_CUR_LOCALE (error (0, 0, _("\
  %s: value for field `%s' must not be an empty string"),
  			      "LC_NUMERIC", "decimal_point"));
      }
    if (numeric->decimal_point_wc == L'\0')
      numeric->decimal_point_wc = L'.';
  
    if (numeric->grouping_len == 0 && ! be_quiet && ! nothing)
      WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),
  			    "LC_NUMERIC", "grouping"));
  }
  
  
  void
  numeric_output (struct localedef_t *locale, const struct charmap_t *charmap,
  		const char *output_path)
  {
    struct locale_numeric_t *numeric = locale->categories[LC_NUMERIC].numeric;
    struct locale_file file;
  
    init_locale_data (&file, _NL_ITEM_INDEX (_NL_NUM_LC_NUMERIC));
    add_locale_string (&file, numeric->decimal_point ?: "");
    add_locale_string (&file, numeric->thousands_sep ?: "");
    add_locale_raw_data (&file, numeric->grouping, numeric->grouping_len);
    add_locale_uint32 (&file, numeric->decimal_point_wc);
    add_locale_uint32 (&file, numeric->thousands_sep_wc);
    add_locale_string (&file, charmap->code_set_name);
    write_locale_data (output_path, LC_NUMERIC, "LC_NUMERIC", &file);
  }
  
  
  /* The parser for the LC_NUMERIC section of the locale definition.  */
  void
  numeric_read (struct linereader *ldfile, struct localedef_t *result,
  	      const struct charmap_t *charmap, const char *repertoire_name,
  	      int ignore_content)
  {
    struct repertoire_t *repertoire = NULL;
    struct locale_numeric_t *numeric;
    struct token *now;
    enum token_t nowtok;
  
    /* Get the repertoire we have to use.  */
    if (repertoire_name != NULL)
      repertoire = repertoire_read (repertoire_name);
  
    /* The rest of the line containing `LC_NUMERIC' 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_numeric,
  		   LC_NUMERIC, "LC_NUMERIC", ignore_content);
        return;
      }
  
    /* Prepare the data structures.  */
    numeric_startup (ldfile, result, ignore_content);
    numeric = result->categories[LC_NUMERIC].numeric;
  
    while (1)
      {
        /* Of course we don't proceed beyond the end of file.  */
        if (nowtok == tok_eof)
  	break;
  
        /* Ingore 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;							      \
  	    }								      \
  									      \
  	  ldfile->return_widestr = 1;					      \
  	  now = lr_token (ldfile, charmap, result, repertoire, verbose);	      \
  	  if (now->tok != tok_string)					      \
  	    goto err_label;						      \
  	  if (numeric->cat != NULL)					      \
  	    lr_error (ldfile, _("\
  %s: field `%s' declared more than once"), "LC_NUMERIC", #cat);		      \
  	  else if (!ignore_content && now->val.str.startmb == NULL)	      \
  	    {								      \
  	      lr_error (ldfile, _("\
  %s: unknown character in field `%s'"), "LC_NUMERIC", #cat);		      \
  	      numeric->cat = "";					      \
  	      numeric->cat##_wc = L'\0';				      \
  	    }								      \
  	  else if (now->val.str.startwc != NULL && now->val.str.lenwc > 2)    \
  	    {								      \
  	      lr_error (ldfile, _("\
  %s: value for field `%s' must be a single character"), "LC_NUMERIC", #cat);   \
  	    }								      \
  	  else if (!ignore_content)					      \
  	    {								      \
  	      numeric->cat = now->val.str.startmb;			      \
  									      \
  	      if (now->val.str.startwc != NULL)				      \
  		numeric->cat##_wc = *now->val.str.startwc;		      \
  	    }								      \
  	  ldfile->return_widestr = 0;					      \
  	  break
  
  	  STR_ELEM (decimal_point);
  	  STR_ELEM (thousands_sep);
  
  	case tok_grouping:
  	  /* 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;
  	    }
  
  	  now = lr_token (ldfile, charmap, result, NULL, verbose);
  	  if (now->tok != tok_minus1 && now->tok != tok_number)
  	    goto err_label;
  	  else
  	    {
  	      size_t act = 0;
  	      size_t max = 10;
  	      char *grouping = xmalloc (max);
  
  	      do
  		{
  		  if (act + 1 >= max)
  		    {
  		      max *= 2;
  		      grouping = xrealloc (grouping, max);
  		    }
  
  		  if (act > 0 && grouping[act - 1] == '\177')
  		    {
  		      lr_error (ldfile, _("\
  %s: `-1' must be last entry in `%s' field"), "LC_NUMERIC", "grouping");
  		      lr_ignore_rest (ldfile, 0);
  		      break;
  		    }
  
  		  if (now->tok == tok_minus1)
  		    grouping[act++] = '\177';
  		  else if (now->val.num == 0)
  		    {
  		      /* A value of 0 disables grouping from here on but
  			 we must not store a NUL character since this
  			 terminates the string.  Use something different
  			 which must not be used otherwise.  */
  		      grouping[act++] = '\377';
  		    }
  		  else if (now->val.num > 126)
  		    lr_error (ldfile, _("\
  %s: values for field `%s' must be smaller than 127"),
  			      "LC_NUMERIC", "grouping");
  		  else
  		    grouping[act++] = now->val.num;
  
  		  /* Next must be semicolon.  */
  		  now = lr_token (ldfile, charmap, result, NULL, verbose);
  		  if (now->tok != tok_semicolon)
  		    break;
  
  		  now = lr_token (ldfile, charmap, result, NULL, verbose);
  		}
  	      while (now->tok == tok_minus1 || now->tok == tok_number);
  
  	      if (now->tok != tok_eol)
  		goto err_label;
  
  	      /* A single -1 means no grouping.  */
  	      if (act == 1 && grouping[0] == '\177')
  		act--;
  	      grouping[act++] = '\0';
  
  	      numeric->grouping = xrealloc (grouping, act);
  	      numeric->grouping_len = act;
  	    }
  	  break;
  
  	case tok_end:
  	  /* Next we assume `LC_NUMERIC'.  */
  	  now = lr_token (ldfile, charmap, result, NULL, verbose);
  	  if (now->tok == tok_eof)
  	    break;
  	  if (now->tok == tok_eol)
  	    lr_error (ldfile, _("%s: incomplete `END' line"), "LC_NUMERIC");
  	  else if (now->tok != tok_lc_numeric)
  	    lr_error (ldfile, _("\
  %1$s: definition does not end with `END %1$s'"), "LC_NUMERIC");
  	  lr_ignore_rest (ldfile, now->tok == tok_lc_numeric);
  	  return;
  
  	default:
  	err_label:
  	  SYNTAX_ERROR (_("%s: syntax error"), "LC_NUMERIC");
  	}
  
        /* 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_NUMERIC");
  }
  