Writing resource file (I18N)

• "\\" stands for "\"
• "\n" stands for the newline character, U+000A
• "\t" stands for the horizontal tab character, U+0009
• "\ " stands for the space character, U+0020
• Lines whose first non-whitespace character is "#" are comment lines and are ignored.
• "\#" stands for the number sign character, U+0023.
• This is only needed if a line within a heredoc string starts with this character.
• Lines that contain only whitespace characters and are not part of a heredoc string are ignored
• Leading and trailing whitespace is trimmed from both key and value

Source