Fix issue #221: JSON_C_TO_STRING_NOSLASHESCAPE works incorrectly

Tests added.

json_object.c

@@ -123,6 +123,12 @@ static int json_escape_str(struct printbuf *pb, const char *str, int len, int fl
 		case '"':
 		case '\\':
 		case '/':
+			if((flags & JSON_C_TO_STRING_NOSLASHESCAPE) && c == '/')
+			{
+				pos++;
+				break;
+			}
+
 			if(pos - start_offset > 0)
 				printbuf_memappend(pb, str + start_offset, pos - start_offset);
 
@@ -133,12 +139,6 @@ static int json_escape_str(struct printbuf *pb, const char *str, int len, int fl
 			else if(c == '\f') printbuf_memappend(pb, "\\f", 2);
 			else if(c == '"') printbuf_memappend(pb, "\\\"", 2);
 			else if(c == '\\') printbuf_memappend(pb, "\\\\", 2);
-			else if(c == '/' &&
-			        (flags & JSON_C_TO_STRING_NOSLASHESCAPE))
-			{
-				pos++;
-				break;
-			}
 			else if(c == '/') printbuf_memappend(pb, "\\/", 2);
 
 			start_offset = ++pos;

tests/test1.c

@@ -63,6 +63,12 @@ int main(int argc, char **argv)
 	printf("my_string.to_string(NOSLASHESCAPE)=%s\n", json_object_to_json_string_ext(my_string, JSON_C_TO_STRING_NOSLASHESCAPE));
 	json_object_put(my_string);
 
+	my_string = json_object_new_string("/foo/bar/baz");
+	printf("my_string=%s\n", json_object_get_string(my_string));
+	printf("my_string.to_string()=%s\n", json_object_to_json_string(my_string));
+	printf("my_string.to_string(NOSLASHESCAPE)=%s\n", json_object_to_json_string_ext(my_string, JSON_C_TO_STRING_NOSLASHESCAPE));
+	json_object_put(my_string);
+
 	my_string = json_object_new_string("foo");
 	printf("my_string=%s\n", json_object_get_string(my_string));
 	printf("my_string.to_string()=%s\n", json_object_to_json_string(my_string));

tests/test1.expected

@@ -5,6 +5,9 @@ my_string.to_string()="\\"
 my_string=/
 my_string.to_string()="\/"
 my_string.to_string(NOSLASHESCAPE)="/"
+my_string=/foo/bar/baz
+my_string.to_string()="\/foo\/bar\/baz"
+my_string.to_string(NOSLASHESCAPE)="/foo/bar/baz"
 my_string=foo
 my_string.to_string()="foo"
 my_int=9

tests/test1Formatted_plain.expected

@@ -5,6 +5,9 @@ my_string.to_string()="\\"
 my_string=/
 my_string.to_string()="\/"
 my_string.to_string(NOSLASHESCAPE)="/"
+my_string=/foo/bar/baz
+my_string.to_string()="\/foo\/bar\/baz"
+my_string.to_string(NOSLASHESCAPE)="/foo/bar/baz"
 my_string=foo
 my_string.to_string()="foo"
 my_int=9

tests/test1Formatted_pretty.expected

@@ -5,6 +5,9 @@ my_string.to_string()="\\"
 my_string=/
 my_string.to_string()="\/"
 my_string.to_string(NOSLASHESCAPE)="/"
+my_string=/foo/bar/baz
+my_string.to_string()="\/foo\/bar\/baz"
+my_string.to_string(NOSLASHESCAPE)="/foo/bar/baz"
 my_string=foo
 my_string.to_string()="foo"
 my_int=9

tests/test1Formatted_spaced.expected

@@ -5,6 +5,9 @@ my_string.to_string()="\\"
 my_string=/
 my_string.to_string()="\/"
 my_string.to_string(NOSLASHESCAPE)="/"
+my_string=/foo/bar/baz
+my_string.to_string()="\/foo\/bar\/baz"
+my_string.to_string(NOSLASHESCAPE)="/foo/bar/baz"
 my_string=foo
 my_string.to_string()="foo"
 my_int=9