/* Message list test for ASCII character set.

   Copyright (C) 2001-2026 Free Software Foundation, Inc.

   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; either version 3 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 <https://www.gnu.org/licenses/>.  */

/* Written by Bruno Haible.  */

#include <config.h>

/* Specification.  */

#include "msgl-ascii.h"

#include "c-ctype.h"

/* This file's structure parallels msgl-iconv.c.  */

bool

is_ascii_string (const char *string)

{

  for (; *string; string++)

    if (!c_isascii ((unsigned char) *string))

      return false;

  return true;

}

bool

is_ascii_string_desc (string_desc_t string)

{

  size_t len = sd_length (string);

  for (size_t i = 0; i < len; i++)

    if (!c_isascii ((unsigned char) sd_char_at (string, i)))

      return false;

  return true;

}

bool

is_ascii_string_list (const string_list_ty *slp)

{

  if (slp != NULL)

    for (size_t i = 0; i < slp->nitems; i++)

      if (!is_ascii_string (slp->item[i]))

        return false;

  return true;

}

bool

is_ascii_message (const message_ty *mp)

{

  {

    const char *p = mp->msgstr;

    const char *p_end = p + mp->msgstr_len;

    for (; p < p_end; p++)

      if (!c_isascii ((unsigned char) *p))

        return false;

  }

  if (!is_ascii_string_list (mp->comment))

    return false;

  if (!is_ascii_string_list (mp->comment_dot))

    return false;

  /* msgid and msgid_plural are normally ASCII, so why checking?

     Because in complete UTF-8 environments they can be UTF-8, not ASCII.  */

  if (!is_ascii_string (mp->msgid))

    return false;

  if (mp->msgid_plural != NULL && !is_ascii_string (mp->msgid_plural))

    return false;

  /* Likewise for msgctxt.  */

  if (mp->msgctxt != NULL && !is_ascii_string (mp->msgctxt))

    return false;

  /* Likewise for the prev_* fields.  */

  if (mp->prev_msgctxt != NULL && !is_ascii_string (mp->prev_msgctxt))

    return false;

  if (mp->prev_msgid != NULL && !is_ascii_string (mp->prev_msgid))

    return false;

  if (mp->prev_msgid_plural != NULL && !is_ascii_string (mp->prev_msgid_plural))

    return false;

  return true;

}

bool

is_ascii_message_list (const message_list_ty *mlp)

{

  for (size_t j = 0; j < mlp->nitems; j++)

    if (!is_ascii_message (mlp->item[j]))

      return false;

  return true;

}

bool

is_ascii_msgdomain_list (const msgdomain_list_ty *mdlp)

{

  for (size_t k = 0; k < mdlp->nitems; k++)

    if (!is_ascii_message_list (mdlp->item[k]->messages))

      return false;

  return true;

}