kaguya
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
#include <assert.h>
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#include <locale.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <uchar.h>
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struct {
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size_t ret;
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char32_t c32;
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uint8_t bytes[4];
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} expected_results[] = {
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{1, 0x7A, {0x7A, 0, 0, 0}},
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{2, 0xDF, {0xC3, 0x9F, 0, 0}},
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{3, 0x6C34, {0xE6, 0xB0, 0xB4, 0}},
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{4, 0x1F34C, {0xF0, 0x9F, 0x8D, 0x8C}},
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};
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int main() {
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setlocale(LC_ALL, "en_US.utf8");
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size_t ret = 0;
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char *str = "z\u00df\u6c34\U0001F34C";
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fprintf(stderr, "string: '%s'\n", str);
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mbstate_t state = {};
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char32_t c32;
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size_t loop = 0;
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while((ret = mbrtoc32(&c32, str, strlen(str), &state))) {
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assert(ret != (size_t)-3);
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if(ret == (size_t)-1)
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break;
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if(ret == (size_t)-2)
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break;
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fprintf(stderr, "Next UTF-32 char: 0x%x obtained from %zu bytes [", c32, ret);
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for(size_t n = 0; n < ret; ++n) {
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fprintf(stderr, " 0x%02x ", (uint8_t) str[n]);
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}
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fprintf(stderr, "]\n");
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assert(ret == expected_results[loop].ret);
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assert(c32 == expected_results[loop].c32);
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for(size_t n = 0; n < ret; ++n) {
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assert((uint8_t) str[n] == expected_results[loop].bytes[n]);
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}
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str += ret;
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loop++;
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}
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return 0;
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}
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