--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dep/utf8proc/bench/icu.c	Thu Jun 20 05:56:06 2024 -0400
@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+/* ICU4C */
+#include <unicode/utypes.h>
+#include <unicode/ustring.h>
+#include <unicode/ucnv.h>
+#include <unicode/unorm2.h>
+
+#include "util.h"
+
+int main(int argc, char **argv)
+{
+	 int i;
+
+	 UErrorCode err;
+	 UConverter *uc = ucnv_open("UTF8", &err);
+	 if (U_FAILURE(err)) return EXIT_FAILURE;
+
+	 const UNormalizer2 *NFKC = unorm2_getNFKCInstance(&err);
+	 if (U_FAILURE(err)) return EXIT_FAILURE;
+	 
+	 for (i = 1; i < argc; ++i) {
+		  if (argv[i][0] == '-') {
+			   fprintf(stderr, "unrecognized option: %s\n", argv[i]);
+			   return EXIT_FAILURE;
+		  }
+
+		  size_t len;
+		  uint8_t *src = readfile(argv[i], &len);
+		  if (!src) {
+			   fprintf(stderr, "error reading %s\n", argv[i]);
+			   return EXIT_FAILURE;
+		  }
+
+		  /* convert UTF8 data to ICU's UTF16 */
+		  UChar *usrc = (UChar*) malloc(2*len * sizeof(UChar));
+		  ucnv_toUChars(uc, usrc, 2*len, (char*) src, len, &err);
+		  if (U_FAILURE(err)) return EXIT_FAILURE;
+		  size_t ulen = u_strlen(usrc);
+
+		  /* ICU's insane normalization API requires you to
+			 know the size of the destination buffer in advance,
+			 or alternatively to repeatedly try normalizing and
+			 double the buffer size until it succeeds.  Here, I just
+			 allocate a huge destination buffer to avoid the issue. */
+		  UChar *udest = (UChar*) malloc(10*ulen * sizeof(UChar));
+
+		  mytime start = gettime();
+		  for (int i = 0; i < 100; ++i) {
+			   unorm2_normalize(NFKC, usrc, ulen, udest, 10*ulen, &err);
+			   if (U_FAILURE(err)) return EXIT_FAILURE;
+		  }
+		  printf("%s: %g\n", argv[i], elapsed(gettime(), start) / 100);
+		  free(udest);
+		  free(usrc);
+		  free(src);
+	 }
+
+	 return EXIT_SUCCESS;
+}