### DIFF LANGUAGE ###

#   ELEMENT_NAME [optional-css-class] REGULAR_EXPRESSION

    NAME                diff
    VERSION             1.10.1

    RESERVED            ^([\-\*]{3}.+?)$
    INS:STRING          ^([\+>].+?)$
    DEL:CONSTANT        ^([\-<].+?)$
    COMMENT             ^(@@.+?)$
    SAME:ENTITY         ^(!.+?)$
    SYMBOL              ^\s.+?$