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9b49a3b49e
The conversion must be lossy because ASCII doesn't have enough chars.
283 lines
10 KiB
C
283 lines
10 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include "alloc-util.h"
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#include "string-util.h"
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#include "strv.h"
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#include "tests.h"
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#include "utf8.h"
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#include "util.h"
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static void test_utf8_is_printable(void) {
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log_info("/* %s */", __func__);
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assert_se(utf8_is_printable("ascii is valid\tunicode", 22));
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assert_se(utf8_is_printable("\342\204\242", 3));
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assert_se(!utf8_is_printable("\341\204", 2));
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assert_se(utf8_is_printable("ąę", 4));
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assert_se(!utf8_is_printable("\r", 1));
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assert_se(utf8_is_printable("\n", 1));
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assert_se(utf8_is_printable("\t", 1));
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}
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static void test_utf8_n_is_valid(void) {
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log_info("/* %s */", __func__);
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assert_se( utf8_is_valid_n("ascii is valid unicode", 21));
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assert_se( utf8_is_valid_n("ascii is valid unicode", 22));
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assert_se(!utf8_is_valid_n("ascii is valid unicode", 23));
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assert_se( utf8_is_valid_n("\342\204\242", 0));
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assert_se(!utf8_is_valid_n("\342\204\242", 1));
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assert_se(!utf8_is_valid_n("\342\204\242", 2));
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assert_se( utf8_is_valid_n("\342\204\242", 3));
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assert_se(!utf8_is_valid_n("\342\204\242", 4));
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assert_se( utf8_is_valid_n("<ZZ>", 0));
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assert_se( utf8_is_valid_n("<ZZ>", 1));
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assert_se( utf8_is_valid_n("<ZZ>", 2));
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assert_se( utf8_is_valid_n("<ZZ>", 3));
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assert_se( utf8_is_valid_n("<ZZ>", 4));
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assert_se(!utf8_is_valid_n("<ZZ>", 5));
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}
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static void test_utf8_is_valid(void) {
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log_info("/* %s */", __func__);
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assert_se(utf8_is_valid("ascii is valid unicode"));
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assert_se(utf8_is_valid("\342\204\242"));
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assert_se(!utf8_is_valid("\341\204"));
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}
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static void test_ascii_is_valid(void) {
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log_info("/* %s */", __func__);
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assert_se( ascii_is_valid("alsdjf\t\vbarr\nba z"));
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assert_se(!ascii_is_valid("\342\204\242"));
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assert_se(!ascii_is_valid("\341\204"));
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}
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static void test_ascii_is_valid_n(void) {
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log_info("/* %s */", __func__);
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assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 17));
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assert_se( ascii_is_valid_n("alsdjf\t\vbarr\nba z", 16));
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assert_se(!ascii_is_valid_n("alsdjf\t\vbarr\nba z", 18));
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assert_se(!ascii_is_valid_n("\342\204\242", 3));
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assert_se(!ascii_is_valid_n("\342\204\242", 2));
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assert_se(!ascii_is_valid_n("\342\204\242", 1));
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assert_se( ascii_is_valid_n("\342\204\242", 0));
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}
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static void test_utf8_to_ascii_one(const char *s, int r_expected, const char *expected) {
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_cleanup_free_ char *ans = NULL;
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int r;
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r = utf8_to_ascii(s, '*', &ans);
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log_debug("\"%s\" → %d/\"%s\" (expected %d/\"%s\")", s, r, strnull(ans), r_expected, strnull(expected));
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assert_se(r == r_expected);
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assert_se(streq_ptr(ans, expected));
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}
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static void test_utf8_to_ascii(void) {
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log_info("/* %s */", __func__);
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test_utf8_to_ascii_one("asdf", 0, "asdf");
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test_utf8_to_ascii_one("dąb", 0, "d*b");
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test_utf8_to_ascii_one("żęśłą óźń", 0, "***** ***");
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test_utf8_to_ascii_one("\342\204\242", 0, "*");
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test_utf8_to_ascii_one("\342\204", -EINVAL, NULL); /* truncated */
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test_utf8_to_ascii_one("\342", -EINVAL, NULL); /* truncated */
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test_utf8_to_ascii_one("\302\256", 0, "*");
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test_utf8_to_ascii_one("", 0, "");
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test_utf8_to_ascii_one(" ", 0, " ");
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test_utf8_to_ascii_one("\t", 0, "\t");
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test_utf8_to_ascii_one("串", 0, "*");
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test_utf8_to_ascii_one("…👊🔪💐…", 0, "*****");
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}
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static void test_utf8_encoded_valid_unichar(void) {
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log_info("/* %s */", __func__);
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assert_se(utf8_encoded_valid_unichar("\342\204\242", 1) == -EINVAL); /* truncated */
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assert_se(utf8_encoded_valid_unichar("\342\204\242", 2) == -EINVAL); /* truncated */
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assert_se(utf8_encoded_valid_unichar("\342\204\242", 3) == 3);
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assert_se(utf8_encoded_valid_unichar("\342\204\242", 4) == 3);
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assert_se(utf8_encoded_valid_unichar("\302\256", 1) == -EINVAL); /* truncated */
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assert_se(utf8_encoded_valid_unichar("\302\256", 2) == 2);
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assert_se(utf8_encoded_valid_unichar("\302\256", 3) == 2);
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assert_se(utf8_encoded_valid_unichar("\302\256", SIZE_MAX) == 2);
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assert_se(utf8_encoded_valid_unichar("a", 1) == 1);
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assert_se(utf8_encoded_valid_unichar("a", 2) == 1);
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assert_se(utf8_encoded_valid_unichar("\341\204", 1) == -EINVAL); /* truncated, potentially valid */
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assert_se(utf8_encoded_valid_unichar("\341\204", 2) == -EINVAL); /* truncated, potentially valid */
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assert_se(utf8_encoded_valid_unichar("\341\204", 3) == -EINVAL);
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assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 4) == -EINVAL);
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assert_se(utf8_encoded_valid_unichar("\341\204\341\204", 5) == -EINVAL);
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}
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static void test_utf8_escape_invalid(void) {
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_cleanup_free_ char *p1, *p2, *p3;
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log_info("/* %s */", __func__);
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p1 = utf8_escape_invalid("goo goo goo");
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log_debug("\"%s\"", p1);
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assert_se(utf8_is_valid(p1));
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p2 = utf8_escape_invalid("\341\204\341\204");
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log_debug("\"%s\"", p2);
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assert_se(utf8_is_valid(p2));
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p3 = utf8_escape_invalid("\341\204");
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log_debug("\"%s\"", p3);
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assert_se(utf8_is_valid(p3));
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}
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static void test_utf8_escape_non_printable(void) {
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_cleanup_free_ char *p1, *p2, *p3, *p4, *p5, *p6;
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log_info("/* %s */", __func__);
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p1 = utf8_escape_non_printable("goo goo goo");
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log_debug("\"%s\"", p1);
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assert_se(utf8_is_valid(p1));
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p2 = utf8_escape_non_printable("\341\204\341\204");
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log_debug("\"%s\"", p2);
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assert_se(utf8_is_valid(p2));
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p3 = utf8_escape_non_printable("\341\204");
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log_debug("\"%s\"", p3);
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assert_se(utf8_is_valid(p3));
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p4 = utf8_escape_non_printable("ąę\n가너도루\n1234\n\341\204\341\204\n\001 \019\20\a");
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log_debug("\"%s\"", p4);
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assert_se(utf8_is_valid(p4));
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p5 = utf8_escape_non_printable("\001 \019\20\a");
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log_debug("\"%s\"", p5);
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assert_se(utf8_is_valid(p5));
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p6 = utf8_escape_non_printable("\xef\xbf\x30\x13");
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log_debug("\"%s\"", p6);
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assert_se(utf8_is_valid(p6));
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}
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static void test_utf8_escape_non_printable_full(void) {
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log_info("/* %s */", __func__);
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const char *s;
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FOREACH_STRING(s,
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"goo goo goo", /* ASCII */
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"\001 \019\20\a", /* control characters */
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"\xef\xbf\x30\x13") /* misplaced continuation bytes followed by a digit and cc */
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for (size_t cw = 0; cw < 22; cw++) {
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_cleanup_free_ char *p, *q;
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size_t ew;
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p = utf8_escape_non_printable_full(s, cw, false);
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ew = utf8_console_width(p);
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log_debug("%02zu \"%s\" (%zu wasted)", cw, p, cw - ew);
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assert_se(utf8_is_valid(p));
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assert_se(ew <= cw);
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q = utf8_escape_non_printable_full(s, cw, true);
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ew = utf8_console_width(q);
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log_debug(" \"%s\" (%zu wasted)", q, cw - ew);
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assert_se(utf8_is_valid(q));
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assert_se(ew <= cw);
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if (cw > 0)
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assert_se(endswith(q, "…"));
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}
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}
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static void test_utf16_to_utf8(void) {
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const char16_t utf16[] = { htole16('a'), htole16(0xd800), htole16('b'), htole16(0xdc00), htole16('c'), htole16(0xd801), htole16(0xdc37) };
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static const char utf8[] = { 'a', 'b', 'c', 0xf0, 0x90, 0x90, 0xb7 };
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_cleanup_free_ char16_t *b = NULL;
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_cleanup_free_ char *a = NULL;
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log_info("/* %s */", __func__);
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/* Convert UTF-16 to UTF-8, filtering embedded bad chars */
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a = utf16_to_utf8(utf16, sizeof(utf16));
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assert_se(a);
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assert_se(memcmp(a, utf8, sizeof(utf8)) == 0);
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/* Convert UTF-8 to UTF-16, and back */
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b = utf8_to_utf16(utf8, sizeof(utf8));
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assert_se(b);
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free(a);
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a = utf16_to_utf8(b, char16_strlen(b) * 2);
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assert_se(a);
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assert_se(strlen(a) == sizeof(utf8));
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assert_se(memcmp(a, utf8, sizeof(utf8)) == 0);
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}
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static void test_utf8_n_codepoints(void) {
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log_info("/* %s */", __func__);
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assert_se(utf8_n_codepoints("abc") == 3);
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assert_se(utf8_n_codepoints("zażółcić gęślą jaźń") == 19);
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assert_se(utf8_n_codepoints("串") == 1);
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assert_se(utf8_n_codepoints("") == 0);
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assert_se(utf8_n_codepoints("…👊🔪💐…") == 5);
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assert_se(utf8_n_codepoints("\xF1") == SIZE_MAX);
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}
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static void test_utf8_console_width(void) {
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log_info("/* %s */", __func__);
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assert_se(utf8_console_width("abc") == 3);
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assert_se(utf8_console_width("zażółcić gęślą jaźń") == 19);
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assert_se(utf8_console_width("串") == 2);
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assert_se(utf8_console_width("") == 0);
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assert_se(utf8_console_width("…👊🔪💐…") == 8);
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assert_se(utf8_console_width("\xF1") == SIZE_MAX);
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}
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static void test_utf8_to_utf16(void) {
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const char *p;
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log_info("/* %s */", __func__);
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FOREACH_STRING(p,
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"abc",
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"zażółcić gęślą jaźń",
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"串",
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"",
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"…👊🔪💐…") {
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_cleanup_free_ char16_t *a = NULL;
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_cleanup_free_ char *b = NULL;
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a = utf8_to_utf16(p, strlen(p));
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assert_se(a);
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b = utf16_to_utf8(a, char16_strlen(a) * 2);
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assert_se(b);
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assert_se(streq(p, b));
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}
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}
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int main(int argc, char *argv[]) {
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log_show_color(true);
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test_setup_logging(LOG_INFO);
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test_utf8_n_is_valid();
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test_utf8_is_valid();
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test_utf8_is_printable();
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test_ascii_is_valid();
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test_ascii_is_valid_n();
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test_utf8_to_ascii();
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test_utf8_encoded_valid_unichar();
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test_utf8_escape_invalid();
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test_utf8_escape_non_printable();
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test_utf8_escape_non_printable_full();
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test_utf16_to_utf8();
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test_utf8_n_codepoints();
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test_utf8_console_width();
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test_utf8_to_utf16();
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return 0;
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}
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