/* Test of quotearg family of functions.

   Copyright (C) 2008-2018 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, 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 Eric Blake <ebb9@byu.net>, 2008.  */

struct result_strings {

  char const *str1; /* Translation of "".  */

  char const *str2; /* Translation of "\0""1\0".  */

  size_t len2; /* Length of str2.  */

  char const *str3; /* Translation of "simple".  */

  char const *str4; /* Translation of " \t\n'\"\033?""?/\\".  */

  char const *str5; /* Translation of "a:b".  */

  char const *str6; /* Translation of "a\\b".  */

  char const *str7; /* Translation of "a' b".  */

  char const *str8a; /* Translation of LQ RQ, in ASCII charset.  */

  char const *str8b; /* Translation of LQ RQ, in Latin1 or UTF-8 charset.  */

};

struct result_groups {

  struct result_strings group1; /* Via quotearg_buffer.  */

  struct result_strings group2; /* Via quotearg{,_mem}.  */

  struct result_strings group3; /* Via quotearg_colon{,_mem}.  */

};

/* These quotes are borrowed from a pt_PT.utf8 translation.  */

# define LQ "\302\253"

# define RQ "\302\273"

# define LQ_ENC "\\302\\253"

# define RQ_ENC "\\302\\273"

# define RQ_ESC "\\\302\273"

static struct result_strings inputs = {

  "", "\0001\0", 3, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",

  "a' b", LQ RQ, NULL

};

static void

compare (char const *a, size_t la, char const *b, size_t lb)

{

  ASSERT (la == lb);

  ASSERT (memcmp (a, b, la) == 0);

  ASSERT (b[lb] == '\0');

}

static void

compare_strings (char *(func) (char const *, size_t *),

                 struct result_strings *results, bool ascii_only)

{

  size_t len;

  char *p;

  len = 0;

  p = func (inputs.str1, &len;;

  compare (results->str1, strlen (results->str1), p, len);

  len = inputs.len2;

  p = func (inputs.str2, &len;;

  compare (results->str2, results->len2, p, len);

  len = SIZE_MAX;

  p = func (inputs.str3, &len;;

  compare (results->str3, strlen (results->str3), p, len);

  len = strlen (inputs.str4);

  p = func (inputs.str4, &len;;

  compare (results->str4, strlen (results->str4), p, len);

  len = SIZE_MAX;

  p = func (inputs.str5, &len;;

  compare (results->str5, strlen (results->str5), p, len);

  len = strlen (inputs.str6);

  p = func (inputs.str6, &len;;

  compare (results->str6, strlen (results->str6), p, len);

  len = strlen (inputs.str7);

  p = func (inputs.str7, &len;;

  compare (results->str7, strlen (results->str7), p, len);

  len = strlen (inputs.str8a);

  p = func (inputs.str8a, &len;;

  if (ascii_only)

    compare (results->str8a, strlen (results->str8a), p, len);

  else

    compare (results->str8b, strlen (results->str8b), p, len);

}

static char *

use_quotearg_buffer (const char *str, size_t *len)

{

  static char buf[100];

  size_t size;

  memset (buf, 0xa5, 100);

  size = quotearg_buffer (buf, 100, str, *len, NULL);

  *len = size;

  ASSERT ((unsigned char) buf[size + 1] == 0xa5);

  return buf;

}

static char *

use_quotearg (const char *str, size_t *len)

{

  char *p = *len == SIZE_MAX ? quotearg (str) : quotearg_mem (str, *len);

  *len = strlen (p);

  return p;

}

static char *

use_quotearg_colon (const char *str, size_t *len)

{

  char *p = (*len == SIZE_MAX ? quotearg_colon (str)

             : quotearg_colon_mem (str, *len));

  *len = strlen (p);

  return p;

}