text: /* Test of conversion to UTF-16 from legacy encodings.
     Copyright (C) 2007-2018 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 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 <bruno@clisp.org>, 2007.  */
  
  #include <config.h>
  
  #include "uniconv.h"
  
  #include <stdlib.h>
  #include <string.h>
  
  #include "unistr.h"
  #include "macros.h"
  extern int iconv_supports_encoding (const char *encoding);
  
  /* Magic number for detecting bounds violations.  */
  #define MAGIC 0x1983EFF1
  
  static size_t *
  new_offsets (size_t n)
  {
    size_t *offsets = (size_t *) malloc ((n + 1) * sizeof (size_t));
    offsets[n] = MAGIC;
    return offsets;
  }
  
  int
  main ()
  {
    static enum iconv_ilseq_handler handlers[] =
      { iconveh_error, iconveh_question_mark, iconveh_escape_sequence };
    size_t h;
    size_t o;
    size_t i;
  
  #if HAVE_ICONV
    /* Assume that iconv() supports at least the encodings ASCII, ISO-8859-1,
       ISO-8859-2, and UTF-8.  */
  
    /* Test conversion from ISO-8859-1 to UTF-16 with no errors.  */
    for (h = 0; h < SIZEOF (handlers); h++)
      {
        enum iconv_ilseq_handler handler = handlers[h];
        static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
        static const uint16_t expected[] = /* Ärger mit bösen Bübchen ohne Augenmaß */
          {
            0xC4, 'r', 'g', 'e', 'r', ' ', 'm', 'i', 't', ' ', 'b', 0xF6, 's',
            'e', 'n', ' ', 'B', 0xFC, 'b', 'c', 'h', 'e', 'n', ' ', 'o', 'h',
            'n', 'e', ' ', 'A', 'u', 'g', 'e', 'n', 'm', 'a', 0xDF
          };
        for (o = 0; o < 2; o++)
          {
            size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
            size_t length;
            uint16_t *result = u16_conv_from_encoding ("ISO-8859-1", handler,
                                                       input, strlen (input),
                                                       offsets,
                                                       NULL, &length);
            ASSERT (result != NULL);
            ASSERT (length == SIZEOF (expected));
            ASSERT (u16_cmp (result, expected, SIZEOF (expected)) == 0);
            if (o)
              {
                for (i = 0; i < 37; i++)
                  ASSERT (offsets[i] == i);
                ASSERT (offsets[37] == MAGIC);
                free (offsets);
              }
            free (result);
          }
      }
  
    /* Test conversion from ISO-8859-2 to UTF-16 with no errors.  */
    for (h = 0; h < SIZEOF (handlers); h++)
      {
        enum iconv_ilseq_handler handler = handlers[h];
        static const char input[] = "Rafa\263 Maszkowski"; /* Rafał Maszkowski */
        static const uint16_t expected[] =
          {
            'R', 'a', 'f', 'a', 0x0142, ' ', 'M', 'a', 's', 'z', 'k', 'o', 'w',
            's', 'k', 'i'
          };
        for (o = 0; o < 2; o++)
          {
            size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
            size_t length;
            uint16_t *result = u16_conv_from_encoding ("ISO-8859-2", handler,
                                                       input, strlen (input),
                                                       offsets,
                                                       NULL, &length);
            ASSERT (result != NULL);
            ASSERT (length == SIZEOF (expected));
            ASSERT (u16_cmp (result, expected, SIZEOF (expected)) == 0);
            if (o)
              {
                for (i = 0; i < 16; i++)
                  ASSERT (offsets[i] == i);
                ASSERT (offsets[16] == MAGIC);
                free (offsets);
              }
            free (result);
          }
      }
  
    /* autodetect_jp is only supported when iconv() support ISO-2022-JP-2.  */
  # if defined _LIBICONV_VERSION || !(defined _AIX || defined __sgi || defined __hpux || defined __osf__ || defined __sun)
    if (iconv_supports_encoding ("ISO-2022-JP-2"))
      {
        /* Test conversions from autodetect_jp to UTF-16.  */
        for (h = 0; h < SIZEOF (handlers); h++)
          {
            enum iconv_ilseq_handler handler = handlers[h];
            static const char input[] = "\244\263\244\363\244\313\244\301\244\317"; /* こんにちは in EUC-JP */
            static const uint16_t expected[] = /* こんにちは */
              {
                0x3053, 0x3093, 0x306B, 0x3061, 0x306F
              };
            for (o = 0; o < 2; o++)
              {
                size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
                size_t length;
                uint16_t *result = u16_conv_from_encoding ("autodetect_jp", handler,
                                                           input, strlen (input),
                                                           offsets,
                                                           NULL, &length);
                ASSERT (result != NULL);
                ASSERT (length == SIZEOF (expected));
                ASSERT (u16_cmp (result, expected, SIZEOF (expected)) == 0);
                if (o)
                  {
                    for (i = 0; i < 10; i++)
                      ASSERT (offsets[i] == ((i % 2) == 0 ? i / 2 : (size_t)(-1)));
                    ASSERT (offsets[10] == MAGIC);
                    free (offsets);
                  }
                free (result);
              }
          }
        for (h = 0; h < SIZEOF (handlers); h++)
          {
            enum iconv_ilseq_handler handler = handlers[h];
            static const char input[] = "\202\261\202\361\202\311\202\277\202\315"; /* こんにちは in Shift_JIS */
            static const uint16_t expected[] = /* こんにちは */
              {
                0x3053, 0x3093, 0x306B, 0x3061, 0x306F
              };
            for (o = 0; o < 2; o++)
              {
                size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
                size_t length;
                uint16_t *result = u16_conv_from_encoding ("autodetect_jp", handler,
                                                           input, strlen (input),
                                                           offsets,
                                                           NULL, &length);
                ASSERT (result != NULL);
                ASSERT (length == SIZEOF (expected));
                ASSERT (u16_cmp (result, expected, SIZEOF (expected)) == 0);
                if (o)
                  {
                    for (i = 0; i < 10; i++)
                      ASSERT (offsets[i] == ((i % 2) == 0 ? i / 2 : (size_t)(-1)));
                    ASSERT (offsets[10] == MAGIC);
                    free (offsets);
                  }
                free (result);
              }
          }
        for (h = 0; h < SIZEOF (handlers); h++)
          {
            enum iconv_ilseq_handler handler = handlers[h];
            static const char input[] = "\033$B$3$s$K$A$O\033(B"; /* こんにちは in ISO-2022-JP-2 */
            static const uint16_t expected[] = /* こんにちは */
              {
                0x3053, 0x3093, 0x306B, 0x3061, 0x306F
              };
            for (o = 0; o < 2; o++)
              {
                size_t *offsets = (o ? new_offsets (strlen (input)) : NULL);
                size_t length;
                uint16_t *result = u16_conv_from_encoding ("autodetect_jp", handler,
                                                           input, strlen (input),
                                                           offsets,
                                                           NULL, &length);
                ASSERT (result != NULL);
                ASSERT (length == SIZEOF (expected));
                ASSERT (u16_cmp (result, expected, SIZEOF (expected)) == 0);
                if (o)
                  {
                    for (i = 0; i < 16; i++)
                      ASSERT (offsets[i] == (i == 0 ? 0 :
                                             i == 5 ? 1 :
                                             i == 7 ? 2 :
                                             i == 9 ? 3 :
                                             i == 11 ? 4 :
                                             i == 13 ? 5 :
                                             (size_t)(-1)));
                    ASSERT (offsets[16] == MAGIC);
                    free (offsets);
                  }
                free (result);
              }
          }
      }
  # endif
  
  #endif
  
    return 0;
  }
  