No longer require quotes to enclose paths

src/misc_tools.h

@@ -146,6 +146,12 @@ void bytes_convert_str(char *buf, int size, uint64_t bytes);
 /* checks if a file exists. Returns true or false */
 bool file_exists(const char *path);
 
+/* Returns 0 if path points to a directory.
+ * Returns 1 if path points to a regular file.
+ * Returns -1 on any other result.
+ */
+int file_type(const char *path);
+
 /* returns file size. If file doesn't exist returns 0. */
 off_t file_size(const char *path);