/* * This file is part of mpv. * * mpv is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * mpv 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with mpv.  If not, see <http://www.gnu.org/licenses/>. */ #include "test_utils.h" #include <limits.h> #include "misc/codepoint_width.h" #define W(s) term_disp_width((bstr)bstr0_lit(s), INT_MAX, &(const unsigned char *){NULL}) int main(void) {    assert_int_equal(W("A"), 1);               // Single ASCII character    assert_int_equal(W("ABC"), 3);             // Multiple ASCII characters     assert_int_equal(W("\u3042"), 2);          // Full-width Japanese Hiragana 'あ' (U+3042)    assert_int_equal(W("\u4F60"), 2);          // Full-width Chinese character '你' (U+4F60)    assert_int_equal(W("\u4F60\u597D"), 4);    // Two full-width Chinese characters '你好' (U+4F60 U+597D)     assert_int_equal(W("a\u0301"), 1);         // 'a' + combining acute accent '́' (U+0301)    assert_int_equal(W("e\u0301"), 1);         // 'e' + combining acute accent '́' (U+0301)    assert_int_equal(W("a\u0308"), 1);         // 'a' + combining diaeresis '̈' (U+0308)     // Family emoji: 👩‍❤️‍👩 (Woman + ZWJ + Heart + ZWJ + Woman;    // Code points: U+1F469 U+200D U+2764 U+FE0F U+200D U+1F469)    assert_int_equal(W("\U0001F469\u200D\u2764\uFE0F\u200D\U0001F469"), 2);    // Man emoji with skin tone modifier    assert_int_equal(W("\U0001F468\U0001F3FE"), 2);    // Person Shrugging + skin tone modifier + ZWJ + woman sign + variant selector    assert_int_equal(W("\U0001F937\U0001F3FE\u200D\U00002640\U0000FE0F"), 2);    // Regional indicator symbols forming the flag of Poland    assert_int_equal(W("\U0001F1F5\U0001F1F1"), 2);     assert_int_equal(W("\n"), 0);              // Newline (should not take up any visual space)    assert_int_equal(W("\t"), 8);              // Tab (tabstop assumed to be 8)    assert_int_equal(W("\0"), 0);              // Null character (non-visible)     assert_int_equal(W("A\u3042"), 3);         // ASCII 'A' + full-width Japanese Hiragana 'あ' (U+3042)    assert_int_equal(W("a\u0301A"), 2);        // Combining character 'á' (a + U+0301) and ASCII 'A'     // Grapheme cluster + ASCII 'A' + full-width Japanese Hiragana 'あ' (U+3042)    assert_int_equal(W("\U0001F469\u200D\u2764\uFE0F\u200D\U0001F469A\u3042"), 5);     assert_int_equal(W("A\nB"), 2);            // ASCII characters with newline (newline should not affect width)    assert_int_equal(W("ABC\tDEF"), 11);       // Tab inside a string     // ASCII characters with color    assert_int_equal(W("\033[31mABC\033[0m\033[32mDEF\033[0m"), 6);     // ASCII characters with color and a newline    assert_int_equal(W("\033[31mABC\033[0m\033[32mDEF\033[0m\n"), 6);     // ASCII characters with carriage return    assert_int_equal(W("ABC\rDEF"), 3);     bstr str = bstr0("ABCDEF");    const unsigned char *cut_pos;     cut_pos = NULL;    assert_int_equal(term_disp_width(str, 3, &cut_pos), 3);    assert_int_equal(cut_pos - str.start, 3);     cut_pos = NULL;    assert_int_equal(term_disp_width(str, -2, &cut_pos), 0);    assert_int_equal(cut_pos - str.start, 0);     cut_pos = NULL;    assert_int_equal(term_disp_width(str, str.len, &cut_pos), 6);    if (cut_pos) {        printf("%s:%d: cut_pos != NULL\n", __FILE__, __LINE__);        fflush(stdout);        abort();    }}