+/** @brief Open a Unicode test file */
+static FILE *open_unicode_test(const char *path) {
+ const char *base;
+ FILE *fp;
+ char buffer[1024];
+ int w;
+
+ if((base = strrchr(path, '/')))
+ ++base;
+ else
+ base = path;
+ if(!(fp = fopen(base, "r"))) {
+ snprintf(buffer, sizeof buffer,
+ "wget http://www.unicode.org/Public/5.0.0/ucd/%s", path);
+ if((w = system(buffer)))
+ fatal(0, "%s: %s", buffer, wstat(w));
+ if(chmod(base, 0444) < 0)
+ fatal(errno, "chmod %s", base);
+ if(!(fp = fopen(base, "r")))
+ fatal(errno, "%s", base);
+ }
+ return fp;
+}
+
+/** @brief Run breaking tests for utf32_is_gcb() etc */
+static void breaktest(const char *path,
+ int (*breakfn)(const uint32_t *, size_t, size_t)) {
+ FILE *fp = open_unicode_test(path);
+ int lineno = 0;
+ char *l, *lp;
+ size_t bn, n;
+ char break_allowed[1024];
+ uint32_t buffer[1024];
+
+ while(!inputline(path, fp, &l, '\n')) {
+ ++lineno;
+ if(l[0] == '#') continue;
+ bn = 0;
+ lp = l;
+ while(*lp) {
+ if(*lp == ' ' || *lp == '\t') {
+ ++lp;
+ continue;
+ }
+ if(*lp == '#')
+ break;
+ if((unsigned char)*lp == 0xC3 && (unsigned char)lp[1] == 0xB7) {
+ /* 00F7 DIVISION SIGN */
+ break_allowed[bn] = 1;
+ lp += 2;
+ continue;
+ }
+ if((unsigned char)*lp == 0xC3 && (unsigned char)lp[1] == 0x97) {
+ /* 00D7 MULTIPLICATION SIGN */
+ break_allowed[bn] = 0;
+ lp += 2;
+ continue;
+ }
+ if(isxdigit((unsigned char)*lp)) {
+ buffer[bn++] = strtoul(lp, &lp, 16);
+ continue;
+ }
+ fatal(0, "%s:%d: evil line: %s", path, lineno, l);
+ }
+ for(n = 0; n <= bn; ++n) {
+ if(breakfn(buffer, bn, n) != break_allowed[n]) {
+ fprintf(stderr,
+ "%s:%d: offset %zu: mismatch\n",
+ path, lineno, n);
+ count_error();
+ }
+ ++tests;
+ }
+ xfree(l);
+ }
+ fclose(fp);
+}
+
+/** @brief Tests for @ref lib/unicode.h */
+static void test_unicode(void) {
+ FILE *fp;
+ int lineno = 0;
+ char *l, *lp;
+ uint32_t buffer[1024];
+ uint32_t *c[6], *NFD_c[6], *NFKD_c[6]; /* 1-indexed */
+ int cn, bn;
+
+ fprintf(stderr, "test_unicode\n");
+ fp = open_unicode_test("NormalizationTest.txt");
+ while(!inputline("NormalizationTest.txt", fp, &l, '\n')) {
+ ++lineno;
+ if(*l == '#' || *l == '@')
+ continue;
+ bn = 0;
+ cn = 1;
+ lp = l;
+ c[cn++] = &buffer[bn];
+ while(*lp && *lp != '#') {
+ if(*lp == ' ') {
+ ++lp;
+ continue;
+ }
+ if(*lp == ';') {
+ buffer[bn++] = 0;
+ if(cn == 6)
+ break;
+ c[cn++] = &buffer[bn];
+ ++lp;
+ continue;
+ }
+ buffer[bn++] = strtoul(lp, &lp, 16);
+ }
+ buffer[bn] = 0;
+ assert(cn == 6);
+ for(cn = 1; cn <= 5; ++cn) {
+ NFD_c[cn] = utf32_decompose_canon(c[cn], utf32_len(c[cn]), 0);
+ NFKD_c[cn] = utf32_decompose_compat(c[cn], utf32_len(c[cn]), 0);
+ }
+#define unt_check(T, A, B) do { \
+ ++tests; \
+ if(utf32_cmp(c[A], T##_c[B])) { \
+ fprintf(stderr, \
+ "NormalizationTest.txt:%d: c%d != "#T"(c%d)\n", \
+ lineno, A, B); \
+ fprintf(stderr, " c%d: %s\n", \
+ A, format_utf32(c[A])); \
+ fprintf(stderr, "%4s(c%d): %s\n", \
+ #T, B, format_utf32(T##_c[B])); \
+ count_error(); \
+ } \
+ } while(0)
+ unt_check(NFD, 3, 1);
+ unt_check(NFD, 3, 2);
+ unt_check(NFD, 3, 3);
+ unt_check(NFD, 5, 4);
+ unt_check(NFD, 5, 5);
+ unt_check(NFKD, 5, 1);
+ unt_check(NFKD, 5, 2);
+ unt_check(NFKD, 5, 3);
+ unt_check(NFKD, 5, 4);
+ unt_check(NFKD, 5, 5);
+ for(cn = 1; cn <= 5; ++cn) {
+ xfree(NFD_c[cn]);
+ xfree(NFKD_c[cn]);
+ }
+ xfree(l);
+ }
+ fclose(fp);
+ breaktest("auxiliary/GraphemeBreakTest.txt", utf32_is_gcb);
+ breaktest("auxiliary/WordBreakTest.txt", utf32_is_word_boundary);
+}
+