kc3-lang/gnulib/tests/test-quotearg.c

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• Hash : b2e2010c
  Author :
  Date : 2010-01-01T10:31:12
  

  update nearly all FSF copyright year lists to include 2010
  
  Use the same procedure as for 2009, outlined in
  http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/20081
  

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• tests/test-quotearg.c

• /* Test of quotearg family of functions.
     Copyright (C) 2008-2010 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, write to the Free Software Foundation,
     Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  
  /* Written by Eric Blake <ebb9@byu.net>, 2008.  */
  
  #include <config.h>
  
  #include "quotearg.h"
  
  #include <ctype.h>
  #include <locale.h>
  #include <stdbool.h>
  #include <stdint.h>
  #include <stdlib.h>
  #include <string.h>
  
  #include "progname.h"
  #include "gettext.h"
  #include "macros.h"
  
  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 *str7a; /* Translation of LQ RQ, in ASCII charset.  */
    char const *str7b; /* 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",
    LQ RQ, NULL
  };
  
  static struct result_groups results_g[] = {
    /* literal_quoting_style */
    { { "", "\0""1\0", 3, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
        LQ RQ, LQ RQ },
      { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
        LQ RQ, LQ RQ },
      { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
        LQ RQ, LQ RQ } },
  
    /* shell_quoting_style */
    { { "''", "\0""1\0", 3, "simple", "' \t\n'\\''\"\033?""?/\\'", "a:b",
        "'a\\b'", LQ RQ, LQ RQ },
      { "''", "1", 1, "simple", "' \t\n'\\''\"\033?""?/\\'", "a:b",
        "'a\\b'", LQ RQ, LQ RQ },
      { "''", "1", 1, "simple", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
        "'a\\b'", LQ RQ, LQ RQ } },
  
    /* shell_always_quoting_style */
    { { "''", "'\0""1\0'", 5, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
        "'a\\b'", "'" LQ RQ "'", "'" LQ RQ "'" },
      { "''", "'1'", 3, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
        "'a\\b'", "'" LQ RQ "'", "'" LQ RQ "'" },
      { "''", "'1'", 3, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
        "'a\\b'", "'" LQ RQ "'", "'" LQ RQ "'" } },
  
    /* c_quoting_style */
    { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
      { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
      { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } },
  
    /* c_maybe_quoting_style */
    { { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
        "a:b", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
      { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
        "a:b", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
      { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
        "\"a:b\"", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ } },
  
    /* escape_quoting_style */
    { { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a:b",
        "a\\\\b", LQ_ENC RQ_ENC, LQ RQ },
      { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a:b",
        "a\\\\b", LQ_ENC RQ_ENC, LQ RQ },
      { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a\\:b",
        "a\\\\b", LQ_ENC RQ_ENC, LQ RQ } },
  
    /* locale_quoting_style */
    { { "`'", "`\\0001\\0'", 9, "`simple'", "` \\t\\n\\'\"\\033?""?/\\\\'",
        "`a:b'", "`a\\\\b'", "`" LQ_ENC RQ_ENC "'", "`" LQ RQ "'" },
      { "`'", "`\\0001\\0'", 9, "`simple'", "` \\t\\n\\'\"\\033?""?/\\\\'",
        "`a:b'", "`a\\\\b'", "`" LQ_ENC RQ_ENC "'", "`" LQ RQ "'" },
      { "`'", "`\\0001\\0'", 9, "`simple'", "` \\t\\n\\'\"\\033?""?/\\\\'",
        "`a\\:b'", "`a\\\\b'", "`" LQ_ENC RQ_ENC "'", "`" LQ RQ "'" } },
  
    /* clocale_quoting_style */
    { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
      { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
      { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } }
  };
  
  static struct result_groups flag_results[] = {
    /* literal_quoting_style and QA_ELIDE_NULL_BYTES */
    { { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", LQ RQ,
        LQ RQ },
      { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", LQ RQ,
        LQ RQ },
      { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", LQ RQ,
        LQ RQ } },
  
    /* c_quoting_style and QA_ELIDE_OUTER_QUOTES */
    { { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
        "a:b", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
      { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
        "a:b", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
      { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
        "\"a:b\"", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ } },
  
    /* c_quoting_style and QA_SPLIT_TRIGRAPHS */
    { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
      { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
      { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
        "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
        "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } }
  };
  
  #if ENABLE_NLS
  
  static struct result_groups locale_results[] = {
    /* locale_quoting_style */
    { { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
        LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a:b" RQ, LQ "a\\\\b" RQ,
        LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ },
      { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
        LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a:b" RQ, LQ "a\\\\b" RQ,
        LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ},
      { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
        LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a\\:b" RQ, LQ "a\\\\b" RQ,
        LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ } },
  
    /* clocale_quoting_style */
    { { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
        LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a:b" RQ, LQ "a\\\\b" RQ,
        LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ },
      { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
        LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a:b" RQ, LQ "a\\\\b" RQ,
        LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ },
      { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
        LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a\\:b" RQ, LQ "a\\\\b" RQ,
        LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ } }
  };
  
  #endif /* ENABLE_NLS */
  
  static char const *custom_quotes[][2] = {
    { "", ""  },
    { "'", "'"  },
    { "(", ")"  },
    { ":", " "  },
    { " ", ":"  },
    { "# ", "\n" },
    { "\"'", "'\"" }
  };
  
  static struct result_groups custom_results[] = {
    /* left_quote = right_quote = "" */
    { { "", "\\0001\\0", 7, "simple",
        " \\t\\n'\"\\033?""?/\\\\", "a:b", "a\\\\b",
        LQ_ENC RQ_ENC, LQ RQ },
      { "", "\\0001\\0", 7, "simple",
        " \\t\\n'\"\\033?""?/\\\\", "a:b", "a\\\\b",
        LQ_ENC RQ_ENC, LQ RQ },
      { "", "\\0001\\0", 7, "simple",
        " \\t\\n'\"\\033?""?/\\\\", "a\\:b", "a\\\\b",
        LQ_ENC RQ_ENC, LQ RQ } },
  
    /* left_quote = right_quote = "'" */
    { { "''", "'\\0001\\0'", 9, "'simple'",
        "' \\t\\n\\'\"\\033?""?/\\\\'", "'a:b'", "'a\\\\b'",
        "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
      { "''", "'\\0001\\0'", 9, "'simple'",
        "' \\t\\n\\'\"\\033?""?/\\\\'", "'a:b'", "'a\\\\b'",
        "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
      { "''", "'\\0001\\0'", 9, "'simple'",
        "' \\t\\n\\'\"\\033?""?/\\\\'", "'a\\:b'", "'a\\\\b'",
        "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" } },
  
    /* left_quote = "(" and right_quote = ")" */
    { { "()", "(\\0001\\0)", 9, "(simple)",
        "( \\t\\n'\"\\033?""?/\\\\)", "(a:b)", "(a\\\\b)",
        "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" },
      { "()", "(\\0001\\0)", 9, "(simple)",
        "( \\t\\n'\"\\033?""?/\\\\)", "(a:b)", "(a\\\\b)",
        "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" },
      { "()", "(\\0001\\0)", 9, "(simple)",
        "( \\t\\n'\"\\033?""?/\\\\)", "(a\\:b)", "(a\\\\b)",
        "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" } },
  
    /* left_quote = ":" and right_quote = " " */
    { { ": ", ":\\0001\\0 ", 9, ":simple ",
        ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a:b ", ":a\\\\b ",
        ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " },
      { ": ", ":\\0001\\0 ", 9, ":simple ",
        ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a:b ", ":a\\\\b ",
        ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " },
      { ": ", ":\\0001\\0 ", 9, ":simple ",
        ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a\\:b ", ":a\\\\b ",
        ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " } },
  
    /* left_quote = " " and right_quote = ":" */
    { { " :", " \\0001\\0:", 9, " simple:",
        "  \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
        " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" },
      { " :", " \\0001\\0:", 9, " simple:",
        "  \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
        " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" },
      { " :", " \\0001\\0:", 9, " simple:",
        "  \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
        " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" } },
  
    /* left_quote = "# " and right_quote = "\n" */
    { { "# \n", "# \\0001\\0\n", 10, "# simple\n",
        "#  \\t\\n'\"\\033?""?/\\\\\n", "# a:b\n", "# a\\\\b\n",
        "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" },
      { "# \n", "# \\0001\\0\n", 10, "# simple\n",
        "#  \\t\\n'\"\\033?""?/\\\\\n", "# a:b\n", "# a\\\\b\n",
        "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" },
      { "# \n", "# \\0001\\0\n", 10, "# simple\n",
        "#  \\t\\n'\"\\033?""?/\\\\\n", "# a\\:b\n", "# a\\\\b\n",
        "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" } },
  
    /* left_quote = "\"'" and right_quote = "'\"" */
    { { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
        "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a:b'\"", "\"'a\\\\b'\"",
        "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" },
      { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
        "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a:b'\"", "\"'a\\\\b'\"",
        "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" },
      { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
        "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a\\:b'\"", "\"'a\\\\b'\"",
        "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" } }
  };
  
  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.str7a);
    p = func (inputs.str7a, &len);
    if (ascii_only)
      compare (results->str7a, strlen (results->str7a), p, len);
    else
      compare (results->str7b, strlen (results->str7b), 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_quote_double_quotes (const char *str, size_t *len)
  {
    char *p = *len == SIZE_MAX ? quotearg_char (str, '"')
                                 : quotearg_char_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;
  }
  
  int
  main (int argc _GL_UNUSED, char *argv[])
  {
    int i;
    bool ascii_only = MB_CUR_MAX == 1 && !isprint ((unsigned char) LQ[0]);
  
    set_program_name (argv[0]);
  
    /* This part of the program is hard-wired to the C locale since it
       does not call setlocale.  However, according to POSIX, the use of
       8-bit bytes in a character context in the C locale gives
       unspecified results (that is, the C locale charset is allowed to
       be unibyte with 8-bit bytes rejected [ASCII], unibyte with 8-bit
       bytes being characters [often ISO-8859-1], or multibyte [often
       UTF-8]).  We assume that the latter two cases will be
       indistinguishable in this test - that is, the LQ and RQ sequences
       will pass through unchanged in either type of charset.  So when
       testing for quoting of str7, use the ascii_only flag to decide
       what to expect for the 8-bit data being quoted.  */
    ASSERT (!isprint ('\033'));
    for (i = literal_quoting_style; i <= clocale_quoting_style; i++)
      {
        set_quoting_style (NULL, i);
        compare_strings (use_quotearg_buffer, &results_g[i].group1, ascii_only);
        compare_strings (use_quotearg, &results_g[i].group2, ascii_only);
        if (i == c_quoting_style)
          compare_strings (use_quote_double_quotes, &results_g[i].group2,
                           ascii_only);
        compare_strings (use_quotearg_colon, &results_g[i].group3, ascii_only);
      }
  
    set_quoting_style (NULL, literal_quoting_style);
    ASSERT (set_quoting_flags (NULL, QA_ELIDE_NULL_BYTES) == 0);
    compare_strings (use_quotearg_buffer, &flag_results[0].group1, ascii_only);
    compare_strings (use_quotearg, &flag_results[0].group2, ascii_only);
    compare_strings (use_quotearg_colon, &flag_results[0].group3, ascii_only);
  
    set_quoting_style (NULL, c_quoting_style);
    ASSERT (set_quoting_flags (NULL, QA_ELIDE_OUTER_QUOTES)
            == QA_ELIDE_NULL_BYTES);
    compare_strings (use_quotearg_buffer, &flag_results[1].group1, ascii_only);
    compare_strings (use_quotearg, &flag_results[1].group2, ascii_only);
    compare_strings (use_quote_double_quotes, &flag_results[1].group2,
                     ascii_only);
    compare_strings (use_quotearg_colon, &flag_results[1].group3, ascii_only);
  
    ASSERT (set_quoting_flags (NULL, QA_SPLIT_TRIGRAPHS)
            == QA_ELIDE_OUTER_QUOTES);
    compare_strings (use_quotearg_buffer, &flag_results[2].group1, ascii_only);
    compare_strings (use_quotearg, &flag_results[2].group2, ascii_only);
    compare_strings (use_quote_double_quotes, &flag_results[2].group2,
                     ascii_only);
    compare_strings (use_quotearg_colon, &flag_results[2].group3, ascii_only);
  
    ASSERT (set_quoting_flags (NULL, 0) == QA_SPLIT_TRIGRAPHS);
  
    for (i = 0; i < sizeof custom_quotes / sizeof *custom_quotes; ++i)
      {
        set_custom_quoting (NULL,
                            custom_quotes[i][0], custom_quotes[i][1]);
        compare_strings (use_quotearg_buffer, &custom_results[i].group1,
                         ascii_only);
        compare_strings (use_quotearg, &custom_results[i].group2, ascii_only);
        compare_strings (use_quotearg_colon, &custom_results[i].group3,
                         ascii_only);
      }
  
  #if ENABLE_NLS
    /* Clean up environment.  */
    unsetenv ("LANGUAGE");
    unsetenv ("LC_ALL");
    unsetenv ("LC_MESSAGES");
    unsetenv ("LC_CTYPE");
    unsetenv ("LANG");
    unsetenv ("OUTPUT_CHARSET");
  
    /* This program part runs in a French UTF-8 locale.  It uses
       the test-quotearg.mo message catalog.  */
    {
      const char *locale_name = getenv ("LOCALE");
  
      if (locale_name != NULL && strcmp (locale_name, "none") != 0
          && setenv ("LC_ALL", locale_name, 1) == 0
          && setlocale (LC_ALL, "") != NULL)
        {
          textdomain ("test-quotearg");
          bindtextdomain ("test-quotearg", getenv ("LOCALEDIR"));
  
          set_quoting_style (NULL, locale_quoting_style);
          compare_strings (use_quotearg_buffer, &locale_results[0].group1, false);
          compare_strings (use_quotearg, &locale_results[0].group2, false);
          compare_strings (use_quotearg_colon, &locale_results[0].group3, false);
  
          set_quoting_style (NULL, clocale_quoting_style);
          compare_strings (use_quotearg_buffer, &locale_results[1].group1, false);
          compare_strings (use_quotearg, &locale_results[1].group2, false);
          compare_strings (use_quotearg_colon, &locale_results[1].group3, false);
        }
    }
  #endif /* ENABLE_NLS */
  
    quotearg_free ();
    return 0;
  }
  

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