svg_EBNF

svg_grammar = '''

    start : prolog element

    prolog: "<?xml" S? attr+ "?>" WS?
    element: inline_tag | start_tag element end_tag


    start_tag : S? "<" name S? attr+ ">" WS+
    end_tag : S? "</" name S? ">" WS+

    inline_tag : S? "<" name S? attr+ "/>" WS+

    letter : "a".."z" | "A".."Z" | "0".."9" | "-"
    name : STRING

    attr : name "=" attr_val S?
    attr_val : ESCAPED_STRING

    STRING :  /[a-zA-Z0-9-_]+/

    S : WS_INLINE

    
    %import common.WS_INLINE
    %import common.ESCAPED_STRING
    %import common.WS
'''