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ex_utf8.c
1242 lines (972 loc) · 33.6 KB
/
ex_utf8.c
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/*
* Example program for the Allegro library.
*
* Test UTF-8 string routines.
*/
/* TODO: we should also be checking on inputs with surrogate characters
* (which are not allowed)
*/
#include <allegro5/allegro.h>
#include <allegro5/utf8.h>
#include <stdarg.h>
#include <stdio.h>
#include "common.c"
#ifdef ALLEGRO_MSVC
#pragma warning (disable: 4066)
#endif
/* Some unicode characters */
#define U_ae 0x00e6 /* æ */
#define U_i_acute 0x00ed /* í */
#define U_eth 0x00f0 /* ð */
#define U_o_dia 0x00f6 /* ö */
#define U_thorn 0x00fe /* þ */
#define U_z_bar 0x01b6 /* ƶ */
#define U_schwa 0x0259 /* ə */
#define U_beta 0x03b2 /* β */
#define U_1d08 0x1d08 /* ᴈ */
#define U_1ff7 0x1ff7 /* ῷ */
#define U_2051 0x2051 /* ⁑ */
#define U_euro 0x20ac /* € */
typedef void (*test_t)(void);
int error = 0;
#define CHECK(x) \
do { \
bool ok = (x); \
if (!ok) { \
log_printf("FAIL %s\n", #x); \
error++; \
} else { \
log_printf("OK %s\n", #x); \
} \
} while (0)
/* Test that we can create and destroy strings and get their data and size. */
static void t1(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("");
ALLEGRO_USTR *us2 = al_ustr_new("áƵ");
CHECK(0 == strcmp(al_cstr(us1), ""));
CHECK(0 == strcmp(al_cstr(us2), "áƵ"));
CHECK(4 == al_ustr_size(us2));
al_ustr_free(us1);
al_ustr_free(us2);
}
static void t2(void)
{
CHECK(0 == al_ustr_size(al_ustr_empty_string()));
CHECK(0 == strcmp(al_cstr(al_ustr_empty_string()), ""));
}
/* Test that we make strings which reference other C strings. */
/* No memory needs to be freed. */
static void t3(void)
{
ALLEGRO_USTR_INFO info;
const ALLEGRO_USTR *us = al_ref_cstr(&info, "A static string.");
CHECK(0 == strcmp(al_cstr(us), "A static string."));
}
/* Test that we can make strings which reference arbitrary memory blocks. */
/* No memory needs to be freed. */
static void t4(void)
{
const char s[] = "This contains an embedded NUL: \0 <-- here";
ALLEGRO_USTR_INFO info;
const ALLEGRO_USTR *us = al_ref_buffer(&info, s, sizeof(s));
CHECK(al_ustr_size(us) == sizeof(s));
CHECK(0 == memcmp(al_cstr(us), s, sizeof(s)));
}
/* Test that we can make strings which reference (parts of) other strings. */
static void t5(void)
{
ALLEGRO_USTR *us1;
const ALLEGRO_USTR *us2;
ALLEGRO_USTR_INFO us2_info;
us1 = al_ustr_new("aábdðeéfghiíjklmnoóprstuúvxyýþæö");
us2 = al_ref_ustr(&us2_info, us1, 36, 36 + 4);
CHECK(0 == memcmp(al_cstr(us2), "þæ", al_ustr_size(us2)));
/* Start pos underflow */
us2 = al_ref_ustr(&us2_info, us1, -10, 7);
CHECK(0 == memcmp(al_cstr(us2), "aábdð", al_ustr_size(us2)));
/* End pos overflow */
us2 = al_ref_ustr(&us2_info, us1, 36, INT_MAX);
CHECK(0 == memcmp(al_cstr(us2), "þæö", al_ustr_size(us2)));
/* Start > end */
us2 = al_ref_ustr(&us2_info, us1, 36 + 4, 36);
CHECK(0 == al_ustr_size(us2));
al_ustr_free(us1);
}
/* Test al_ustr_dup. */
static void t6(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("aábdðeéfghiíjklmnoóprstuúvxyýþæö");
ALLEGRO_USTR *us2 = al_ustr_dup(us1);
CHECK(al_ustr_size(us1) == al_ustr_size(us2));
CHECK(0 == memcmp(al_cstr(us1), al_cstr(us2), al_ustr_size(us1)));
al_ustr_free(us1);
al_ustr_free(us2);
}
/* Test al_ustr_dup_substr. */
static void t7(void)
{
ALLEGRO_USTR *us1;
ALLEGRO_USTR *us2;
us1 = al_ustr_new("aábdðeéfghiíjklmnoóprstuúvxyýþæö");
/* Cut out part of a string. Check for NUL terminator. */
us2 = al_ustr_dup_substr(us1, 36, 36 + 4);
CHECK(al_ustr_size(us2) == 4);
CHECK(0 == strcmp(al_cstr(us2), "þæ"));
al_ustr_free(us2);
/* Under and overflow */
us2 = al_ustr_dup_substr(us1, INT_MIN, INT_MAX);
CHECK(al_ustr_size(us2) == al_ustr_size(us1));
CHECK(0 == strcmp(al_cstr(us2), al_cstr(us1)));
al_ustr_free(us2);
/* Start > end */
us2 = al_ustr_dup_substr(us1, INT_MAX, INT_MIN);
CHECK(0 == al_ustr_size(us2));
al_ustr_free(us2);
al_ustr_free(us1);
}
/* Test al_ustr_append, al_ustr_append_cstr. */
static void t8(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("aábdðeéfghiíjklm");
ALLEGRO_USTR *us2 = al_ustr_new("noóprstuú");
CHECK(al_ustr_append(us1, us2));
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéfghiíjklmnoóprstuú"));
CHECK(al_ustr_append_cstr(us1, "vxyýþæö"));
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéfghiíjklmnoóprstuúvxyýþæö"));
al_ustr_free(us1);
al_ustr_free(us2);
}
/* Test al_ustr_append with aliased strings. */
static void t9(void)
{
ALLEGRO_USTR *us1;
ALLEGRO_USTR_INFO us2_info;
const ALLEGRO_USTR *us2;
/* Append a string to itself. */
us1 = al_ustr_new("aábdðeéfghiíjklm");
CHECK(al_ustr_append(us1, us1));
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéfghiíjklmaábdðeéfghiíjklm"));
al_ustr_free(us1);
/* Append a substring of a string to itself. */
us1 = al_ustr_new("aábdðeéfghiíjklm");
us2 = al_ref_ustr(&us2_info, us1, 5, 5 + 11); /* ð...í */
CHECK(al_ustr_append(us1, us2));
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéfghiíjklmðeéfghií"));
al_ustr_free(us1);
}
/* Test al_ustr_equal. */
static void t10(void)
{
ALLEGRO_USTR *us1;
ALLEGRO_USTR *us2;
const ALLEGRO_USTR *us3;
ALLEGRO_USTR_INFO us3_info;
const char us3_data[] = "aábdð\0eéfgh";
us1 = al_ustr_new("aábdð");
us2 = al_ustr_dup(us1);
us3 = al_ref_buffer(&us3_info, us3_data, sizeof(us3_data));
CHECK(al_ustr_equal(us1, us2));
CHECK(!al_ustr_equal(us1, al_ustr_empty_string()));
/* Check comparison doesn't stop at embedded NUL. */
CHECK(!al_ustr_equal(us1, us3));
al_ustr_free(us1);
al_ustr_free(us2);
}
/* Test al_ustr_insert. */
static void t11(void)
{
ALLEGRO_USTR *us1;
ALLEGRO_USTR *us2;
size_t sz;
/* Insert in middle. */
us1 = al_ustr_new("aábdðeéfghiíjkprstuúvxyýþæö");
us2 = al_ustr_new("lmnoó");
al_ustr_insert(us1, 18, us2);
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéfghiíjklmnoóprstuúvxyýþæö"));
/* Insert into itself. */
al_ustr_insert(us2, 3, us2);
CHECK(0 == strcmp(al_cstr(us2), "lmnlmnoóoó"));
/* Insert before start (not allowed). */
CHECK(!al_ustr_insert(us2, -1, us2));
/* Insert past end (will be padded with NULs). */
sz = al_ustr_size(us2);
al_ustr_insert(us2, sz + 3, us2);
CHECK(al_ustr_size(us2) == sz + sz + 3);
CHECK(0 == memcmp(al_cstr(us2), "lmnlmnoóoó\0\0\0lmnlmnoóoó", sz + sz + 3));
al_ustr_free(us1);
al_ustr_free(us2);
}
/* Test al_ustr_insert_cstr. */
static void t12(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("aábeéf");
CHECK(al_ustr_insert_cstr(us1, 4, "dð"));
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéf"));
al_ustr_free(us1);
}
/* Test al_ustr_remove_range. */
static void t13(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("aábdðeéfghiíjkprstuúvxyýþæö");
/* Remove from middle of string. */
CHECK(al_ustr_remove_range(us1, 5, 30));
CHECK(0 == strcmp(al_cstr(us1), "aábdþæö"));
/* Removing past end. */
CHECK(al_ustr_remove_range(us1, 100, 120));
CHECK(0 == strcmp(al_cstr(us1), "aábdþæö"));
/* Start > End. */
CHECK(! al_ustr_remove_range(us1, 3, 0));
CHECK(0 == strcmp(al_cstr(us1), "aábdþæö"));
al_ustr_free(us1);
}
/* Test al_ustr_truncate. */
static void t14(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("aábdðeéfghiíjkprstuúvxyýþæö");
/* Truncate from middle of string. */
CHECK(al_ustr_truncate(us1, 30));
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéfghiíjkprstuúvxyý"));
/* Truncate past end (allowed). */
CHECK(al_ustr_truncate(us1, 100));
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéfghiíjkprstuúvxyý"));
/* Truncate before start (not allowed). */
CHECK(! al_ustr_truncate(us1, -1));
CHECK(0 == strcmp(al_cstr(us1), "aábdðeéfghiíjkprstuúvxyý"));
al_ustr_free(us1);
}
/* Test whitespace trim functions. */
static void t15(void)
{
ALLEGRO_USTR *us1 = al_ustr_new(" \f\n\r\t\vhello \f\n\r\t\v");
ALLEGRO_USTR *us2 = al_ustr_new(" \f\n\r\t\vhello \f\n\r\t\v");
CHECK(al_ustr_ltrim_ws(us1));
CHECK(0 == strcmp(al_cstr(us1), "hello \f\n\r\t\v"));
CHECK(al_ustr_rtrim_ws(us1));
CHECK(0 == strcmp(al_cstr(us1), "hello"));
CHECK(al_ustr_trim_ws(us2));
CHECK(0 == strcmp(al_cstr(us2), "hello"));
al_ustr_free(us1);
al_ustr_free(us2);
}
/* Test whitespace trim functions (edge cases). */
static void t16(void)
{
ALLEGRO_USTR *us1;
/* Check return value when passed empty strings. */
us1 = al_ustr_new("");
CHECK(al_ustr_ltrim_ws(us1));
CHECK(al_ustr_rtrim_ws(us1));
CHECK(al_ustr_trim_ws(us1));
al_ustr_free(us1);
/* Check nothing bad happens if the whole string is whitespace. */
us1 = al_ustr_new(" \f\n\r\t\v");
CHECK(al_ustr_ltrim_ws(us1));
CHECK(al_ustr_size(us1) == 0);
al_ustr_free(us1);
us1 = al_ustr_new(" \f\n\r\t\v");
CHECK(al_ustr_rtrim_ws(us1));
CHECK(al_ustr_size(us1) == 0);
al_ustr_free(us1);
us1 = al_ustr_new(" \f\n\r\t\v");
CHECK(al_ustr_trim_ws(us1));
CHECK(al_ustr_size(us1) == 0);
al_ustr_free(us1);
}
/* Test al_utf8_width. */
static void t17(void)
{
CHECK(al_utf8_width(0x000000) == 1);
CHECK(al_utf8_width(0x00007f) == 1);
CHECK(al_utf8_width(0x000080) == 2);
CHECK(al_utf8_width(0x0007ff) == 2);
CHECK(al_utf8_width(0x000800) == 3);
CHECK(al_utf8_width(0x00ffff) == 3);
CHECK(al_utf8_width(0x010000) == 4);
CHECK(al_utf8_width(0x10ffff) == 4);
/* These are illegal. */
CHECK(al_utf8_width(0x110000) == 0);
CHECK(al_utf8_width(0xffffff) == 0);
}
/* Test al_utf8_encode. */
static void t18(void)
{
char buf[4];
CHECK(al_utf8_encode(buf, 0) == 1);
CHECK(0 == memcmp(buf, "\x00", 1));
CHECK(al_utf8_encode(buf, 0x7f) == 1);
CHECK(0 == memcmp(buf, "\x7f", 1));
CHECK(al_utf8_encode(buf, 0x80) == 2);
CHECK(0 == memcmp(buf, "\xC2\x80", 2));
CHECK(al_utf8_encode(buf, 0x7ff) == 2);
CHECK(0 == memcmp(buf, "\xDF\xBF", 2));
CHECK(al_utf8_encode(buf, 0x000800) == 3);
CHECK(0 == memcmp(buf, "\xE0\xA0\x80", 3));
CHECK(al_utf8_encode(buf, 0x00ffff) == 3);
CHECK(0 == memcmp(buf, "\xEF\xBF\xBF", 3));
CHECK(al_utf8_encode(buf, 0x010000) == 4);
CHECK(0 == memcmp(buf, "\xF0\x90\x80\x80", 4));
CHECK(al_utf8_encode(buf, 0x10ffff) == 4);
CHECK(0 == memcmp(buf, "\xF4\x8f\xBF\xBF", 4));
/* These are illegal. */
CHECK(al_utf8_encode(buf, 0x110000) == 0);
CHECK(al_utf8_encode(buf, 0xffffff) == 0);
}
/* Test al_ustr_insert_chr. */
static void t19(void)
{
ALLEGRO_USTR *us = al_ustr_new("");
CHECK(al_ustr_insert_chr(us, 0, 'a') == 1);
CHECK(al_ustr_insert_chr(us, 0, U_ae) == 2);
CHECK(al_ustr_insert_chr(us, 2, U_euro) == 3);
CHECK(0 == strcmp(al_cstr(us), "æ€a"));
/* Past end. */
CHECK(al_ustr_insert_chr(us, 8, U_o_dia) == 2);
CHECK(0 == memcmp(al_cstr(us), "æ€a\0\0ö", 9));
/* Invalid code points. */
CHECK(al_ustr_insert_chr(us, 0, -1) == 0);
CHECK(al_ustr_insert_chr(us, 0, 0x110000) == 0);
al_ustr_free(us);
}
/* Test al_ustr_append_chr. */
static void t20(void)
{
ALLEGRO_USTR *us = al_ustr_new("");
CHECK(al_ustr_append_chr(us, 'a') == 1);
CHECK(al_ustr_append_chr(us, U_ae) == 2);
CHECK(al_ustr_append_chr(us, U_euro) == 3);
CHECK(0 == strcmp(al_cstr(us), "aæ€"));
/* Invalid code points. */
CHECK(al_ustr_append_chr(us, -1) == 0);
CHECK(al_ustr_append_chr(us, 0x110000) == 0);
al_ustr_free(us);
}
/* Test al_ustr_get. */
static void t21(void)
{
ALLEGRO_USTR_INFO info;
const ALLEGRO_USTR *us;
us = al_ref_buffer(&info, "", 1);
CHECK(al_ustr_get(us, 0) == 0);
us = al_ref_cstr(&info, "\x7f");
CHECK(al_ustr_get(us, 0) == 0x7f);
us = al_ref_cstr(&info, "\xC2\x80");
CHECK(al_ustr_get(us, 0) == 0x80);
us = al_ref_cstr(&info, "\xDF\xBf");
CHECK(al_ustr_get(us, 0) == 0x7ff);
us = al_ref_cstr(&info, "\xE0\xA0\x80");
CHECK(al_ustr_get(us, 0) == 0x800);
us = al_ref_cstr(&info, "\xEF\xBF\xBF");
CHECK(al_ustr_get(us, 0) == 0xffff);
us = al_ref_cstr(&info, "\xF0\x90\x80\x80");
CHECK(al_ustr_get(us, 0) == 0x010000);
us = al_ref_cstr(&info, "\xF4\x8F\xBF\xBF");
CHECK(al_ustr_get(us, 0) == 0x10ffff);
}
/* Test al_ustr_get on invalid sequences. */
static void t22(void)
{
ALLEGRO_USTR_INFO info;
const ALLEGRO_USTR *us;
/* Empty string. */
al_set_errno(0);
CHECK(al_ustr_get(al_ustr_empty_string(), 0) < 0);
CHECK(al_get_errno() == ERANGE);
/* 5-byte sequence. */
us = al_ref_cstr(&info, "\xf8\x88\x80\x80\x80");
al_set_errno(0);
CHECK(al_ustr_get(us, 0) < 0);
CHECK(al_get_errno() == EILSEQ);
/* Start in trail byte. */
us = al_ref_cstr(&info, "ð");
al_set_errno(0);
CHECK(al_ustr_get(us, 1) < 0);
CHECK(al_get_errno() == EILSEQ);
/* Truncated 3-byte sequence. */
us = al_ref_cstr(&info, "\xEF\xBF");
al_set_errno(0);
CHECK(al_ustr_get(us, 0) < 0);
CHECK(al_get_errno() == EILSEQ);
}
/* Test al_ustr_get on invalid sequences (part 2). */
/* Get more ideas for tests from
* http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
*/
static void t23(void)
{
ALLEGRO_USTR_INFO info;
const ALLEGRO_USTR *us;
/* Examples of an overlong ASCII character */
us = al_ref_cstr(&info, "\xc0\xaf");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xe0\x80\xaf");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xf0\x80\x80\xaf");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xf8\x80\x80\x80\xaf");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xfc\x80\x80\x80\x80\xaf");
CHECK(al_ustr_get(us, 0) < 0);
/* Maximum overlong sequences */
us = al_ref_cstr(&info, "\xc1\xbf");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xe0\x9f\xbf");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xf0\x8f\xbf\xbf");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xf8\x87\xbf\xbf\xbf");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xfc\x83\xbf\xbf\xbf\xbf");
CHECK(al_ustr_get(us, 0) < 0);
/* Overlong representation of the NUL character */
us = al_ref_cstr(&info, "\xc0\x80");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xe0\x80\x80");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xf0\x80\x80");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xf8\x80\x80\x80");
CHECK(al_ustr_get(us, 0) < 0);
us = al_ref_cstr(&info, "\xfc\x80\x80\x80\x80");
CHECK(al_ustr_get(us, 0) < 0);
}
/* Test al_ustr_next. */
static void t24(void)
{
const char str[] = "a\0þ€\xf4\x8f\xbf\xbf";
ALLEGRO_USTR_INFO info;
const ALLEGRO_USTR *us = al_ref_buffer(&info, str, sizeof(str) - 1);
int pos = 0;
CHECK(al_ustr_next(us, &pos)); /* a */
CHECK(pos == 1);
CHECK(al_ustr_next(us, &pos)); /* NUL */
CHECK(pos == 2);
CHECK(al_ustr_next(us, &pos)); /* þ */
CHECK(pos == 4);
CHECK(al_ustr_next(us, &pos)); /* € */
CHECK(pos == 7);
CHECK(al_ustr_next(us, &pos)); /* U+10FFFF */
CHECK(pos == 11);
CHECK(! al_ustr_next(us, &pos)); /* end */
CHECK(pos == 11);
}
/* Test al_ustr_next with invalid input. */
static void t25(void)
{
const char str[] = "þ\xf4\x8f\xbf.";
ALLEGRO_USTR_INFO info;
const ALLEGRO_USTR *us = al_ref_buffer(&info, str, sizeof(str) - 1);
int pos;
/* Starting in middle of a sequence. */
pos = 1;
CHECK(al_ustr_next(us, &pos));
CHECK(pos == 2);
/* Unexpected end of 4-byte sequence. */
CHECK(al_ustr_next(us, &pos));
CHECK(pos == 5);
}
/* Test al_ustr_prev. */
static void t26(void)
{
ALLEGRO_USTR *us = al_ustr_new("aþ€\xf4\x8f\xbf\xbf");
int pos = al_ustr_size(us);
CHECK(al_ustr_prev(us, &pos)); /* U+10FFFF */
CHECK(pos == 6);
CHECK(al_ustr_prev(us, &pos)); /* € */
CHECK(pos == 3);
CHECK(al_ustr_prev(us, &pos)); /* þ */
CHECK(pos == 1);
CHECK(al_ustr_prev(us, &pos)); /* a */
CHECK(pos == 0);
CHECK(!al_ustr_prev(us, &pos)); /* begin */
CHECK(pos == 0);
al_ustr_free(us);
}
/* Test al_ustr_length. */
static void t27(void)
{
ALLEGRO_USTR *us = al_ustr_new("aþ€\xf4\x8f\xbf\xbf");
CHECK(0 == al_ustr_length(al_ustr_empty_string()));
CHECK(4 == al_ustr_length(us));
al_ustr_free(us);
}
/* Test al_ustr_offset. */
static void t28(void)
{
ALLEGRO_USTR *us = al_ustr_new("aþ€\xf4\x8f\xbf\xbf");
CHECK(al_ustr_offset(us, 0) == 0);
CHECK(al_ustr_offset(us, 1) == 1);
CHECK(al_ustr_offset(us, 2) == 3);
CHECK(al_ustr_offset(us, 3) == 6);
CHECK(al_ustr_offset(us, 4) == 10);
CHECK(al_ustr_offset(us, 5) == 10);
CHECK(al_ustr_offset(us, -1) == 6);
CHECK(al_ustr_offset(us, -2) == 3);
CHECK(al_ustr_offset(us, -3) == 1);
CHECK(al_ustr_offset(us, -4) == 0);
CHECK(al_ustr_offset(us, -5) == 0);
al_ustr_free(us);
}
/* Test al_ustr_get_next. */
static void t29(void)
{
ALLEGRO_USTR *us = al_ustr_new("aþ€");
int pos;
pos = 0;
CHECK(al_ustr_get_next(us, &pos) == 'a');
CHECK(al_ustr_get_next(us, &pos) == U_thorn);
CHECK(al_ustr_get_next(us, &pos) == U_euro);
CHECK(al_ustr_get_next(us, &pos) == -1);
CHECK(pos == (int) al_ustr_size(us));
/* Start in the middle of þ. */
pos = 2;
CHECK(al_ustr_get_next(us, &pos) == -2);
CHECK(al_ustr_get_next(us, &pos) == U_euro);
al_ustr_free(us);
}
/* Test al_ustr_prev_get. */
static void t30(void)
{
ALLEGRO_USTR *us = al_ustr_new("aþ€");
int pos;
pos = al_ustr_size(us);
CHECK(al_ustr_prev_get(us, &pos) == U_euro);
CHECK(al_ustr_prev_get(us, &pos) == U_thorn);
CHECK(al_ustr_prev_get(us, &pos) == 'a');
CHECK(al_ustr_prev_get(us, &pos) == -1);
/* Start in the middle of þ. */
pos = 2;
CHECK(al_ustr_prev_get(us, &pos) == U_thorn);
al_ustr_free(us);
}
/* Test al_ustr_find_chr. */
static void t31(void)
{
ALLEGRO_USTR *us = al_ustr_new("aábdðeéfghiíaábdðeéfghií");
/* Find ASCII. */
CHECK(al_ustr_find_chr(us, 0, 'e') == 7);
CHECK(al_ustr_find_chr(us, 7, 'e') == 7); /* start_pos is inclusive */
CHECK(al_ustr_find_chr(us, 8, 'e') == 23);
CHECK(al_ustr_find_chr(us, 0, '.') == -1);
/* Find non-ASCII. */
CHECK(al_ustr_find_chr(us, 0, U_eth) == 5);
CHECK(al_ustr_find_chr(us, 5, U_eth) == 5); /* start_pos is inclusive */
CHECK(al_ustr_find_chr(us, 6, U_eth) == 21);
CHECK(al_ustr_find_chr(us, 0, U_z_bar) == -1);
al_ustr_free(us);
}
/* Test al_ustr_rfind_chr. */
static void t32(void)
{
ALLEGRO_USTR *us = al_ustr_new("aábdðeéfghiíaábdðeéfghií");
int end = al_ustr_size(us);
/* Find ASCII. */
CHECK(al_ustr_rfind_chr(us, end, 'e') == 23);
CHECK(al_ustr_rfind_chr(us, 23, 'e') == 7); /* end_pos exclusive */
CHECK(al_ustr_rfind_chr(us, end, '.') == -1);
/* Find non-ASCII. */
CHECK(al_ustr_rfind_chr(us, end, U_i_acute) == 30);
CHECK(al_ustr_rfind_chr(us, end - 1, U_i_acute) == 14); /* end_pos exclusive */
CHECK(al_ustr_rfind_chr(us, end, U_z_bar) == -1);
al_ustr_free(us);
}
/* Test al_ustr_find_set, al_ustr_find_set_cstr. */
static void t33(void)
{
ALLEGRO_USTR *us = al_ustr_new("aábdðeéfghiíaábdðeéfghií");
/* al_ustr_find_set_cstr is s simple wrapper for al_ustr_find_set
* so we test using that.
*/
/* Find ASCII. */
CHECK(al_ustr_find_set_cstr(us, 0, "gfe") == 7);
CHECK(al_ustr_find_set_cstr(us, 7, "gfe") == 7); /* start_pos inclusive */
CHECK(al_ustr_find_set_cstr(us, 0, "") == -1);
CHECK(al_ustr_find_set_cstr(us, 0, "xyz") == -1);
/* Find non-ASCII. */
CHECK(al_ustr_find_set_cstr(us, 0, "éðf") == 5);
CHECK(al_ustr_find_set_cstr(us, 5, "éðf") == 5); /* start_pos inclusive */
CHECK(al_ustr_find_set_cstr(us, 0, "ẋỹƶ") == -1);
al_ustr_free(us);
}
/* Test al_ustr_find_set, al_ustr_find_set_cstr (invalid values). */
static void t34(void)
{
ALLEGRO_USTR *us = al_ustr_new("a\x80ábdðeéfghií");
/* Invalid byte sequence in search string. */
CHECK(al_ustr_find_set_cstr(us, 0, "gfe") == 8);
/* Invalid byte sequence in accept set. */
CHECK(al_ustr_find_set_cstr(us, 0, "é\x80ðf") == 6);
al_ustr_free(us);
}
/* Test al_ustr_find_cset, al_ustr_find_cset_cstr. */
static void t35(void)
{
ALLEGRO_USTR *us;
/* al_ustr_find_cset_cstr is s simple wrapper for al_ustr_find_cset
* so we test using that.
*/
/* Find ASCII. */
us = al_ustr_new("alphabetagamma");
CHECK(al_ustr_find_cset_cstr(us, 0, "alphbet") == 9);
CHECK(al_ustr_find_cset_cstr(us, 9, "alphbet") == 9);
CHECK(al_ustr_find_cset_cstr(us, 0, "") == -1);
CHECK(al_ustr_find_cset_cstr(us, 0, "alphbetgm") == -1);
al_ustr_free(us);
/* Find non-ASCII. */
us = al_ustr_new("αλφαβεταγαμμα");
CHECK(al_ustr_find_cset_cstr(us, 0, "αλφβετ") == 16);
CHECK(al_ustr_find_cset_cstr(us, 16, "αλφβετ") == 16);
CHECK(al_ustr_find_cset_cstr(us, 0, "αλφβετγμ") == -1);
al_ustr_free(us);
}
/* Test al_ustr_find_cset, al_ustr_find_set_cstr (invalid values). */
static void t36(void)
{
ALLEGRO_USTR *us = al_ustr_new("a\x80ábdðeéfghií");
/* Invalid byte sequence in search string. */
CHECK(al_ustr_find_cset_cstr(us, 0, "aábd") == 6);
/* Invalid byte sequence in reject set. */
CHECK(al_ustr_find_cset_cstr(us, 0, "a\x80ábd") == 6);
al_ustr_free(us);
}
/* Test al_ustr_find_str, al_ustr_find_cstr. */
static void t37(void)
{
ALLEGRO_USTR *us = al_ustr_new("aábdðeéfghiíaábdðeéfghií");
/* al_ustr_find_cstr is s simple wrapper for al_ustr_find_str
* so we test using that.
*/
CHECK(al_ustr_find_cstr(us, 0, "") == 0);
CHECK(al_ustr_find_cstr(us, 10, "") == 10);
CHECK(al_ustr_find_cstr(us, 0, "ábd") == 1);
CHECK(al_ustr_find_cstr(us, 10, "ábd") == 17);
CHECK(al_ustr_find_cstr(us, 0, "ábz") == -1);
al_ustr_free(us);
}
/* Test al_ustr_rfind_str, al_ustr_rfind_cstr. */
static void t38(void)
{
ALLEGRO_USTR *us = al_ustr_new("aábdðeéfghiíaábdðeéfghií");
int end = al_ustr_size(us);
/* al_ustr_find_cstr is s simple wrapper for al_ustr_find_str
* so we test using that.
*/
CHECK(al_ustr_rfind_cstr(us, 0, "") == 0);
CHECK(al_ustr_rfind_cstr(us, 1, "") == 1);
CHECK(al_ustr_rfind_cstr(us, end, "hií") == end - 4);
CHECK(al_ustr_rfind_cstr(us, end - 1, "hií") == 12);
CHECK(al_ustr_rfind_cstr(us, end, "ábz") == -1);
al_ustr_free(us);
}
/* Test al_ustr_new_from_buffer, al_cstr_dup. */
static void t39(void)
{
const char s1[] = "Корабът ми на въздушна възглавница\0е пълен със змиорки";
ALLEGRO_USTR *us;
char *s2;
us = al_ustr_new_from_buffer(s1, sizeof(s1) - 1); /* missing NUL term. */
s2 = al_cstr_dup(us);
al_ustr_free(us);
CHECK(0 == strcmp(s1, s2));
CHECK(0 == memcmp(s1, s2, sizeof(s1))); /* including NUL terminator */
al_free(s2);
}
/* Test al_ustr_assign, al_ustr_assign_cstr. */
static void t40(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("我隻氣墊船裝滿晒鱔");
ALLEGRO_USTR *us2 = al_ustr_new("Τὸ χόβερκράφτ μου εἶναι γεμᾶτο χέλια");
CHECK(al_ustr_assign(us1, us2));
CHECK(0 == strcmp(al_cstr(us1), "Τὸ χόβερκράφτ μου εἶναι γεμᾶτο χέλια"));
CHECK(al_ustr_assign_cstr(us1, "私のホバークラフトは鰻でいっぱいです"));
CHECK(54 == al_ustr_size(us1));
al_ustr_free(us1);
al_ustr_free(us2);
}
/* Test al_ustr_assign_cstr. */
static void t41(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("Моја лебдилица је пуна јегуља");
ALLEGRO_USTR *us2 = al_ustr_new("");
CHECK(al_ustr_assign_substr(us2, us1, 9, 27));
CHECK(0 == strcmp(al_cstr(us2), "лебдилица"));
/* Start > End */
CHECK(al_ustr_assign_substr(us2, us1, 9, 0));
CHECK(0 == strcmp(al_cstr(us2), ""));
/* Start, end out of bounds */
CHECK(al_ustr_assign_substr(us2, us1, -INT_MAX, INT_MAX));
CHECK(0 == strcmp(al_cstr(us2), "Моја лебдилица је пуна јегуља"));
al_ustr_free(us1);
al_ustr_free(us2);
}
/* Test al_ustr_set_chr. */
static void t42(void)
{
ALLEGRO_USTR *us = al_ustr_new("abcdef");
/* Same size (ASCII). */
CHECK(al_ustr_set_chr(us, 1, 'B') == 1);
CHECK(0 == strcmp(al_cstr(us), "aBcdef"));
CHECK(6 == al_ustr_size(us));
/* Enlarge to 2-bytes. */
CHECK(al_ustr_set_chr(us, 1, U_beta) == 2);
CHECK(0 == strcmp(al_cstr(us), "aβcdef"));
CHECK(7 == al_ustr_size(us));
/* Enlarge to 3-bytes. */
CHECK(al_ustr_set_chr(us, 5, U_1d08) == 3);
CHECK(0 == strcmp(al_cstr(us), "aβcdᴈf"));
CHECK(9 == al_ustr_size(us));
/* Reduce to 2-bytes. */
CHECK(al_ustr_set_chr(us, 5, U_schwa) == 2);
CHECK(0 == strcmp(al_cstr(us), "aβcdəf"));
CHECK(8 == al_ustr_size(us));
/* Set at end of string. */
CHECK(al_ustr_set_chr(us, al_ustr_size(us), U_1ff7) == 3);
CHECK(0 == strcmp(al_cstr(us), "aβcdəfῷ"));
CHECK(11 == al_ustr_size(us));
/* Set past end of string. */
CHECK(al_ustr_set_chr(us, al_ustr_size(us) + 2, U_2051) == 3);
CHECK(0 == memcmp(al_cstr(us), "aβcdəfῷ\0\0⁑", 16));
CHECK(16 == al_ustr_size(us));
/* Set before start of string (not allowed). */
CHECK(al_ustr_set_chr(us, -1, U_2051) == 0);
CHECK(16 == al_ustr_size(us));
al_ustr_free(us);
}
/* Test al_ustr_remove_chr. */
static void t43(void)
{
ALLEGRO_USTR *us = al_ustr_new("«aβῷ»");
CHECK(al_ustr_remove_chr(us, 2));
CHECK(0 == strcmp(al_cstr(us), "«βῷ»"));
CHECK(al_ustr_remove_chr(us, 2));
CHECK(0 == strcmp(al_cstr(us), "«ῷ»"));
CHECK(al_ustr_remove_chr(us, 2));
CHECK(0 == strcmp(al_cstr(us), "«»"));
/* Not at beginning of code point. */
CHECK(! al_ustr_remove_chr(us, 1));
/* Out of bounds. */
CHECK(! al_ustr_remove_chr(us, -1));
CHECK(! al_ustr_remove_chr(us, al_ustr_size(us)));
al_ustr_free(us);
}
/* Test al_ustr_replace_range. */
static void t44(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("Šis kungs par visu samaksās");
ALLEGRO_USTR *us2 = al_ustr_new("ī kundze");
CHECK(al_ustr_replace_range(us1, 2, 10, us2));
CHECK(0 == strcmp(al_cstr(us1), "Šī kundze par visu samaksās"));
/* Insert into itself. */
CHECK(al_ustr_replace_range(us1, 5, 11, us1));
CHECK(0 == strcmp(al_cstr(us1),
"Šī Šī kundze par visu samaksās par visu samaksās"));
al_ustr_free(us1);
al_ustr_free(us2);
}
/* Test al_ustr_replace_range (part 2). */
static void t45(void)
{
ALLEGRO_USTR *us1 = al_ustr_new("abcdef");
ALLEGRO_USTR *us2 = al_ustr_new("ABCDEF");
/* Start1 < 0 [not allowed] */
CHECK(! al_ustr_replace_range(us1, -1, 1, us2));
/* Start1 > end(us1) [padded] */
CHECK(al_ustr_replace_range(us1, 8, 100, us2));
CHECK(0 == memcmp(al_cstr(us1), "abcdef\0\0ABCDEF", 15));
/* Start1 > end1 [not allowed] */
CHECK(! al_ustr_replace_range(us1, 8, 1, us2));
CHECK(0 == memcmp(al_cstr(us1), "abcdef\0\0ABCDEF", 15));
al_ustr_free(us1);