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/* Pango
* test-bidi.c: Test bidi apis
*
* Copyright (C) 2021 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <pango/pango.h>
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
static void
test_mirror_char (void)
{
/* just some samples */
struct {
gunichar a;
gunichar b;
} tests[] = {
{ '(', ')' },
{ '<', '>' },
{ '[', ']' },
{ '{', '}' },
{ 0x00ab, 0x00bb },
{ 0x2045, 0x2046 },
{ 0x226e, 0x226f },
};
for (int i = 0; i < G_N_ELEMENTS (tests); i++)
{
gboolean ret;
gunichar ch;
ret = pango_get_mirror_char (tests[i].a, &ch);
g_assert_true (ret);
g_assert_true (ch == tests[i].b);
ret = pango_get_mirror_char (tests[i].b, &ch);
g_assert_true (ret);
g_assert_true (ch == tests[i].a);
}
}
static void
test_bidi_type_for_unichar (void)
{
/* one representative from each class we support */
g_assert_true (pango_bidi_type_for_unichar ('a') == PANGO_BIDI_TYPE_L);
g_assert_true (pango_bidi_type_for_unichar (0x202a) == PANGO_BIDI_TYPE_LRE);
g_assert_true (pango_bidi_type_for_unichar (0x202d) == PANGO_BIDI_TYPE_LRO);
g_assert_true (pango_bidi_type_for_unichar (0x05d0) == PANGO_BIDI_TYPE_R);
g_assert_true (pango_bidi_type_for_unichar (0x0627) == PANGO_BIDI_TYPE_AL);
g_assert_true (pango_bidi_type_for_unichar (0x202b) == PANGO_BIDI_TYPE_RLE);
g_assert_true (pango_bidi_type_for_unichar (0x202e) == PANGO_BIDI_TYPE_RLO);
g_assert_true (pango_bidi_type_for_unichar (0x202c) == PANGO_BIDI_TYPE_PDF);
g_assert_true (pango_bidi_type_for_unichar ('0') == PANGO_BIDI_TYPE_EN);
g_assert_true (pango_bidi_type_for_unichar ('+') == PANGO_BIDI_TYPE_ES);
g_assert_true (pango_bidi_type_for_unichar ('#') == PANGO_BIDI_TYPE_ET);
g_assert_true (pango_bidi_type_for_unichar (0x601) == PANGO_BIDI_TYPE_AN);
g_assert_true (pango_bidi_type_for_unichar (',') == PANGO_BIDI_TYPE_CS);
g_assert_true (pango_bidi_type_for_unichar (0x0301) == PANGO_BIDI_TYPE_NSM);
g_assert_true (pango_bidi_type_for_unichar (0x200d) == PANGO_BIDI_TYPE_BN);
g_assert_true (pango_bidi_type_for_unichar (0x2029) == PANGO_BIDI_TYPE_B);
g_assert_true (pango_bidi_type_for_unichar (0x000b) == PANGO_BIDI_TYPE_S);
g_assert_true (pango_bidi_type_for_unichar (' ') == PANGO_BIDI_TYPE_WS);
g_assert_true (pango_bidi_type_for_unichar ('!') == PANGO_BIDI_TYPE_ON);
/* these are new */
g_assert_true (pango_bidi_type_for_unichar (0x2066) == PANGO_BIDI_TYPE_LRI);
g_assert_true (pango_bidi_type_for_unichar (0x2067) == PANGO_BIDI_TYPE_RLI);
g_assert_true (pango_bidi_type_for_unichar (0x2068) == PANGO_BIDI_TYPE_FSI);
g_assert_true (pango_bidi_type_for_unichar (0x2069) == PANGO_BIDI_TYPE_PDI);
}
static void
test_unichar_direction (void)
{
struct {
gunichar ch;
PangoDirection dir;
} tests[] = {
{ 'a', PANGO_DIRECTION_LTR },
{ '0', PANGO_DIRECTION_NEUTRAL },
{ '.', PANGO_DIRECTION_NEUTRAL },
{ '(', PANGO_DIRECTION_NEUTRAL },
{ 0x05d0, PANGO_DIRECTION_RTL },
};
for (int i = 0; i < G_N_ELEMENTS (tests); i++)
{
g_assert_true (pango_unichar_direction (tests[i].ch) == tests[i].dir);
}
}
G_GNUC_END_IGNORE_DEPRECATIONS
static void
test_bidi_embedding_levels (void)
{
/* Examples taken from https://www.w3.org/International/articles/inline-bidi-markup/uba-basics */
struct {
const char *text;
PangoDirection dir;
const char *levels;
PangoDirection out_dir;
} tests[] = {
{ "bahrain مصر kuwait", PANGO_DIRECTION_LTR, "\0\0\0\0\0\0\0\0\1\1\1\0\0\0\0\0\0\0", PANGO_DIRECTION_LTR },
{ "bahrain مصر kuwait", PANGO_DIRECTION_WEAK_LTR, "\0\0\0\0\0\0\0\0\1\1\1\0\0\0\0\0\0\0", PANGO_DIRECTION_LTR },
{ "bahrain مصر kuwait", PANGO_DIRECTION_RTL, "\2\2\2\2\2\2\2\1\1\1\1\1\2\2\2\2\2\2", PANGO_DIRECTION_RTL },
{ "bahrain مصر kuwait", PANGO_DIRECTION_WEAK_RTL, "\0\0\0\0\0\0\0\0\1\1\1\0\0\0\0\0\0\0", PANGO_DIRECTION_LTR },
{ "The title is مفتاح معايير الويب in Arabic.", PANGO_DIRECTION_LTR, "\0\0\0\0\0\0\0\0\0\0\0\0\0\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0\0\0\0\0\0", PANGO_DIRECTION_LTR },
{ "The title is مفتاح معايير الويب, in Arabic.", PANGO_DIRECTION_LTR, "\0\0\0\0\0\0\0\0\0\0\0\0\0\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0\0\0\0\0\0\0", PANGO_DIRECTION_LTR },
{ "The title is مفتاح معايير الويب! in Arabic.", PANGO_DIRECTION_LTR, "\0\0\0\0\0\0\0\0\0\0\0\0\0\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\1\0\0\0\0\0\0\0\0\0\0\0", PANGO_DIRECTION_LTR }, // FIXME
{ "one two ثلاثة 1234 خمسة", PANGO_DIRECTION_LTR, "\0\0\0\0\0\0\0\0\1\1\1\1\1\1\2\2\2\2\1\1\1\1\1", PANGO_DIRECTION_LTR },
{ "one two ثلاثة ١٢٣٤ خمسة", PANGO_DIRECTION_LTR, "\0\0\0\0\0\0\0\0\1\1\1\1\1\1\2\2\2\2\1\1\1\1\1", PANGO_DIRECTION_LTR },
};
for (int i = 0; i < G_N_ELEMENTS (tests); i++)
{
const char *text = tests[i].text;
PangoDirection dir = tests[i].dir;
guint8 *levels;
gsize len;
levels = pango_log2vis_get_embedding_levels (text, -1, &dir);
len = g_utf8_strlen (text, -1);
if (memcmp (levels, tests[i].levels, sizeof (guint8) * len) != 0)
{
for (int j = 0; j < len; j++)
g_print ("\\%d", levels[j]);
g_print ("\n");
}
g_assert_true (memcmp (levels, tests[i].levels, sizeof (guint8) * len) == 0);
g_assert_true (dir == tests[i].out_dir);
g_free (levels);
}
}
int
main (int argc, char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/bidi/mirror-char", test_mirror_char);
g_test_add_func ("/bidi/type-for-unichar", test_bidi_type_for_unichar);
g_test_add_func ("/bidi/unichar-direction", test_unichar_direction);
g_test_add_func ("/bidi/embedding-levels", test_bidi_embedding_levels);
return g_test_run ();
}
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