1/* Test of casefolding mapping for UTF-16 strings.
2   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
3
4   This program is free software: you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 3 of the License, or
7   (at your option) any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
16
17/* Written by Bruno Haible <bruno@clisp.org>, 2009.  */
18
19#include <config.h>
20
21#include "unicase.h"
22
23#include <stdlib.h>
24
25#include "unistr.h"
26#include "uninorm.h"
27#include "macros.h"
28
29static int
30check (const uint16_t *input, size_t input_length,
31       const char *iso639_language, uninorm_t nf,
32       const uint16_t *expected, size_t expected_length)
33{
34  size_t length;
35  uint16_t *result;
36
37  /* Test return conventions with resultbuf == NULL.  */
38  result = u16_casefold (input, input_length, iso639_language, nf, NULL, &length);
39  if (!(result != NULL))
40    return 1;
41  if (!(length == expected_length))
42    return 2;
43  if (!(u16_cmp (result, expected, expected_length) == 0))
44    return 3;
45  free (result);
46
47  /* Test return conventions with resultbuf too small.  */
48  if (expected_length > 0)
49    {
50      uint16_t *preallocated;
51
52      length = expected_length - 1;
53      preallocated = (uint16_t *) malloc (length * sizeof (uint16_t));
54      result = u16_casefold (input, input_length, iso639_language, nf, preallocated, &length);
55      if (!(result != NULL))
56        return 4;
57      if (!(result != preallocated))
58        return 5;
59      if (!(length == expected_length))
60        return 6;
61      if (!(u16_cmp (result, expected, expected_length) == 0))
62        return 7;
63      free (result);
64      free (preallocated);
65    }
66
67  /* Test return conventions with resultbuf large enough.  */
68  {
69    uint16_t *preallocated;
70
71    length = expected_length;
72    preallocated = (uint16_t *) malloc (length * sizeof (uint16_t));
73    result = u16_casefold (input, input_length, iso639_language, nf, preallocated, &length);
74    if (!(result != NULL))
75      return 8;
76    if (!(preallocated == NULL || result == preallocated))
77      return 9;
78    if (!(length == expected_length))
79      return 10;
80    if (!(u16_cmp (result, expected, expected_length) == 0))
81      return 11;
82    free (preallocated);
83  }
84
85  return 0;
86}
87
88int
89main ()
90{
91  { /* Empty string.  */
92    ASSERT (check (NULL, 0, NULL, NULL, NULL, 0) == 0);
93    ASSERT (check (NULL, 0, NULL, UNINORM_NFC, NULL, 0) == 0);
94  }
95
96  /* Simple string.  */
97  { /* "Gr���� Gott. ������������������������! x=(-b��sqrt(b��-4ac))/(2a)  ���������,������,������" */
98    static const uint16_t input[] =
99      { 'G', 'r', 0x00FC, 0x00DF, ' ', 'G', 'o', 't', 't', '.', ' ',
100        0x0417, 0x0434, 0x0440, 0x0430, 0x0432, 0x0441, 0x0442, 0x0432, 0x0443,
101        0x0439, 0x0442, 0x0435, '!', ' ',
102        'x', '=', '(', '-', 'b', 0x00B1, 's', 'q', 'r', 't', '(', 'b', 0x00B2,
103        '-', '4', 'a', 'c', ')', ')', '/', '(', '2', 'a', ')', ' ', ' ',
104        0x65E5, 0x672C, 0x8A9E, ',', 0x4E2D, 0x6587, ',', 0xD55C, 0xAE00, '\n'
105      };
106    static const uint16_t casefolded[] =
107      { 'g', 'r', 0x00FC, 0x0073, 0x0073, ' ', 'g', 'o', 't', 't', '.', ' ',
108        0x0437, 0x0434, 0x0440, 0x0430, 0x0432, 0x0441, 0x0442, 0x0432, 0x0443,
109        0x0439, 0x0442, 0x0435, '!', ' ',
110        'x', '=', '(', '-', 'b', 0x00B1, 's', 'q', 'r', 't', '(', 'b', 0x00B2,
111        '-', '4', 'a', 'c', ')', ')', '/', '(', '2', 'a', ')', ' ', ' ',
112        0x65E5, 0x672C, 0x8A9E, ',', 0x4E2D, 0x6587, ',', 0xD55C, 0xAE00, '\n'
113      };
114    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
115  }
116
117  /* Case mapping can increase the number of Unicode characters.  */
118  { /* LATIN SMALL LETTER N PRECEDED BY APOSTROPHE */
119    static const uint16_t input[]      = { 0x0149 };
120    static const uint16_t casefolded[] = { 0x02BC, 0x006E };
121    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
122  }
123  { /* GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS */
124    static const uint16_t input[]      = { 0x0390 };
125    static const uint16_t casefolded[] = { 0x03B9, 0x0308, 0x0301 };
126    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
127  }
128
129  /* Turkish letters i �� �� I */
130  { /* LATIN CAPITAL LETTER I */
131    static const uint16_t input[]         = { 0x0049 };
132    static const uint16_t casefolded[]    = { 0x0069 };
133    static const uint16_t casefolded_tr[] = { 0x0131 };
134    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
135    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded_tr, SIZEOF (casefolded_tr)) == 0);
136  }
137  { /* LATIN SMALL LETTER I */
138    static const uint16_t input[]      = { 0x0069 };
139    static const uint16_t casefolded[] = { 0x0069 };
140    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
141    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded, SIZEOF (casefolded)) == 0);
142  }
143  { /* LATIN CAPITAL LETTER I WITH DOT ABOVE */
144    static const uint16_t input[]         = { 0x0130 };
145    static const uint16_t casefolded[]    = { 0x0069, 0x0307 };
146    static const uint16_t casefolded_tr[] = { 0x0069 };
147    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
148    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded_tr, SIZEOF (casefolded_tr)) == 0);
149  }
150  { /* LATIN SMALL LETTER DOTLESS I */
151    static const uint16_t input[]      = { 0x0131 };
152    static const uint16_t casefolded[] = { 0x0131 };
153    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
154    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded, SIZEOF (casefolded)) == 0);
155  }
156  { /* "topkap��" */
157    static const uint16_t input[] =
158      { 0x0074, 0x006F, 0x0070, 0x006B, 0x0061, 0x0070, 0x0131 };
159    static const uint16_t casefolded[] =
160      { 0x0074, 0x006F, 0x0070, 0x006B, 0x0061, 0x0070, 0x0131 };
161    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
162    ASSERT (check (input, SIZEOF (input), "tr", NULL, casefolded, SIZEOF (casefolded)) == 0);
163  }
164
165  /* Uppercasing can increase the number of Unicode characters.  */
166  { /* "hei��" */
167    static const uint16_t input[]      = { 0x0068, 0x0065, 0x0069, 0x00DF };
168    static const uint16_t casefolded[] = { 0x0068, 0x0065, 0x0069, 0x0073, 0x0073 };
169    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
170  }
171
172  /* Case mappings for some characters can depend on the surrounding characters.  */
173  { /* "������������������������ ����������������������" */
174    static const uint16_t input[] =
175      {
176        0x03C0, 0x03B5, 0x03C1, 0x03B9, 0x03C3, 0x03C3, 0x03CC, 0x03C4,
177        0x03B5, 0x03C1, 0x03B5, 0x03C2, 0x0020, 0x03C0, 0x03BB, 0x03B7,
178        0x03C1, 0x03BF, 0x03C6, 0x03BF, 0x03C1, 0x03AF, 0x03B5, 0x03C2
179      };
180    static const uint16_t casefolded[] =
181      {
182        0x03C0, 0x03B5, 0x03C1, 0x03B9, 0x03C3, 0x03C3, 0x03CC, 0x03C4,
183        0x03B5, 0x03C1, 0x03B5, 0x03C3, 0x0020, 0x03C0, 0x03BB, 0x03B7,
184        0x03C1, 0x03BF, 0x03C6, 0x03BF, 0x03C1, 0x03AF, 0x03B5, 0x03C3
185      };
186    ASSERT (check (input, SIZEOF (input), NULL, NULL, casefolded, SIZEOF (casefolded)) == 0);
187  }
188
189  /* Case mapping can require subsequent normalization.  */
190  { /* LATIN SMALL LETTER J WITH CARON, COMBINING DOT BELOW */
191    static const uint16_t input[]                 = { 0x01F0, 0x0323 };
192    static const uint16_t casefolded[]            = { 0x006A, 0x030C, 0x0323 };
193    static const uint16_t casefolded_decomposed[] = { 0x006A, 0x0323, 0x030C };
194    static const uint16_t casefolded_normalized[] = { 0x01F0, 0x0323 };
195    ASSERT (check (input, SIZEOF (input), NULL, NULL,        casefolded, SIZEOF (casefolded)) == 0);
196    ASSERT (check (input, SIZEOF (input), NULL, UNINORM_NFD, casefolded_decomposed, SIZEOF (casefolded_decomposed)) == 0);
197    ASSERT (check (input, SIZEOF (input), NULL, UNINORM_NFC, casefolded_normalized, SIZEOF (casefolded_normalized)) == 0);
198  }
199
200  return 0;
201}
202