Add jerry_module_path_join_and_normalize far more simplified

CMakeLists.txt

@@ -160,10 +160,12 @@ if(ENABLE_TESTS)
   create_test(DEFAULT join navigate_back)
   create_test(DEFAULT join empty)
   create_test(DEFAULT join two_absolute)
+  create_test(DEFAULT join two_absolute_module)
   create_test(DEFAULT join two_unc)
   create_test(DEFAULT join with_two_roots)
   create_test(DEFAULT join back_after_root)
   create_test(DEFAULT join relative_back_after_root)
+  create_test(DEFAULT join relative_back_after_root_module)
   create_test(DEFAULT join multiple)
   create_test(DEFAULT normalize do_nothing)
   create_test(DEFAULT normalize navigate_back)

include/cpj.h

@@ -141,6 +141,29 @@ CPJ_PUBLIC size_t cpj_path_get_relative(enum cpj_path_style path_style,
 CPJ_PUBLIC size_t cpj_path_join(enum cpj_path_style path_style,
   const char *path_a, const char *path_b, char *buffer, size_t buffer_size);
 
+/**
+ * @brief Joins two paths together.
+ *
+ * This function generates a new path by combining the two submitted paths. It
+ * will remove double separators, and unlike cpj_path_get_absolute it permits
+ * the use of two relative paths to combine. The result will be written to a
+ * buffer, which might be truncated if the buffer is not large enough to hold
+ * the full path. However, the truncated result will always be
+ * null-terminated. The returned value is the amount of characters which the
+ * resulting path would take if it was not truncated (excluding the
+ * null-terminating character).
+ *
+ * @param path_style Style depending on the operating system. So this should
+ * detect whether we should use windows or unix paths.
+ * @param path_a The first path which comes first.
+ * @param path_b The second path which comes after the first.
+ * @param buffer The buffer where the result will be written to.
+ * @param buffer_size The size of the result buffer.
+ * @return Returns the total amount of characters of the full, combined path.
+ */
+CPJ_PUBLIC size_t cpj_path_join_module(enum cpj_path_style path_style,
+  const char *path_a, const char *path_b, char *buffer, size_t buffer_size);
+
 /**
  * @brief Joins multiple paths together.
  *