libutf

commit 64146c5d02b07cff6ca69df5e6cf75cb21391352
parent 6c59f30ae6ade6513f3e5003053b14f2c328174e
Author: Connor Lane Smith <cls@lubutu.com>
Date:   Sun, 15 Apr 2012 12:44:17 +0100

simpler utftest.c
Diffstat:
utftest.c
 | 
81
++++++++++++++++---------------------------------------------------------------

1 file changed, 16 insertions(+), 65 deletions(-)
diff --git a/utftest.c b/utftest.c
@@ -7,80 +7,31 @@
 static void utferror(const char *, int);
 
 int
-main(int argc, char *argv[])
+main(void)
 {
-	char buf[BUFSIZ], buf2[UTFmax], *p;
+	char buf[BUFSIZ], buf2[UTFmax];
 	int len, len2;
 	size_t i, n;
 	Rune r;
 
-	switch(argc) {
-	case 1:
-		for(i = 0; (n = fread(&buf[i], 1, sizeof buf - i, stdin)); i = n-i) {
-			for(n += i, i = 0; (len = charntorune(&r, &buf[i], n-i)); i += len) {
-				if(r == Runeerror)
-					utferror(&buf[i], len);
-				if((len2 = runetochar(buf2, &r))) {
-					if(!fwrite(buf2, len2, 1, stdout)) {
-						perror("write error");
-						exit(EXIT_FAILURE);
-					}
+	for(i = 0; (n = fread(&buf[i], 1, sizeof buf - i, stdin)); i = n-i) {
+		for(n += i, i = 0; (len = charntorune(&r, &buf[i], n-i)); i += len) {
+			if(r == Runeerror)
+				utferror(&buf[i], len);
+			if((len2 = runetochar(buf2, &r))) {
+				if(!fwrite(buf2, len2, 1, stdout)) {
+					perror("write error");
+					exit(EXIT_FAILURE);
 				}
-				else
-					fprintf(stderr, "error converting rune to char: U+%02X\n", r);
 			}
-			if(i < n)
-				memcpy(buf, &buf[i], n-i);
-		}
-		if(ferror(stdin)) {
-			perror("read error");
-			exit(EXIT_FAILURE);
-		}
-		break;
-	case 2:
-		fprintf(stderr, "\"%s\" (%lu,%lu)\n",
-		        argv[1], utflen(argv[1]), strlen(argv[1]));
-		break;
-	case 3:
-		if((n = strtol(argv[2], NULL, 0)) >= sizeof buf) {
-			fprintf(stderr, "%lu is too large (max %lu)\n", n, sizeof buf - 1);
-			exit(EXIT_FAILURE);
-		}
-		if((p = utfecpy(buf, &buf[n], argv[1])) == buf)
-			buf[0] = '\0';
-		printf("\"%s\" (%lu,%lu; %lu,%lu) -> \"%s\" (%lu,%lu)\n",
-		       argv[1], utflen(argv[1]), strlen(argv[1]), utfnlen(argv[1], n),
-		       n, buf, utflen(buf), p-buf);
-		break;
-	case 4:
-	case 5:
-		if(utflen(argv[2]) <= 1 && utflen(argv[3]) <= 1) {
-			n = chartorune(&r, argv[2]);
-			if(r == Runeerror)
-				utferror(argv[2], n);
-			if((p = utfrune(argv[1], r)))
-				printf("utfrune  '%s': \"%s\"\n", argv[2], p);
 			else
-				printf("utfrune  '%s': null\n", argv[2]);
-
-			n = chartorune(&r, argv[3]);
-			if(r == Runeerror)
-				utferror(argv[2], n);
-			if((p = utfrrune(argv[1], r)))
-				printf("utfrrune '%s': \"%s\"\n", argv[3], p);
-			else
-				printf("utfrrune '%s': null\n", argv[3]);
-
-			if(argc > 4) {
-				if((p = utfutf(argv[1], argv[4])))
-					printf("utfutf   \"%s\": \"%s\"\n", argv[4], p);
-				else
-					printf("utfutf   \"%s\": null\n", argv[4]);
-			}
-			break;
+				fprintf(stderr, "error converting rune to char: U+%02X\n", r);
 		}
-	default:
-		fprintf(stderr, "%s [<string> [<len> | <rune> <rune> [<string>]]]\n", argv[0]);
+		if(i < n)
+			memcpy(buf, &buf[i], n-i);
+	}
+	if(ferror(stdin)) {
+		perror("read error");
 		exit(EXIT_FAILURE);
 	}
 	return EXIT_SUCCESS;