(
     (rule turtleDoc (star statement))
     (rule statement (alt directive (seq triples '.')))
     (rule directive (alt prefixID base sparqlPrefix sparqlBase))
     (rule prefixID (seq '@prefix' PNAME_NS IRIREF '.'))
     (rule base (seq '@base' IRIREF '.'))
     (rule sparqlPrefix (seq "PREFIX" PNAME_NS IRIREF))
     (rule sparqlBase (seq "BASE" IRIREF))
     (rule triples
      (alt
       (seq subject predicateObjectList)
       (seq blankNodePropertyList (opt predicateObjectList))) )
     (rule predicateObjectList
      (seq verb objectList (star (seq ';' (opt (seq verb objectList))))))
     (rule objectList (seq object (star (seq ',' object))))
     (rule verb (alt predicate 'a'))
     (rule subject (alt iri BlankNode collection))
     (rule predicate (seq iri))
     (rule object (alt iri BlankNode collection blankNodePropertyList literal))
     (rule literal (alt RDFLiteral NumericLiteral BooleanLiteral))
     (rule blankNodePropertyList (seq '[' predicateObjectList ']'))
     (rule collection (seq '(' (star object) ')'))
     (rule NumericLiteral (alt INTEGER DECIMAL DOUBLE))
     (rule RDFLiteral (seq String (opt (alt LANGTAG (seq '^^' iri)))))
     (rule BooleanLiteral (alt 'true' 'false'))
     (rule String
      (alt STRING_LITERAL_QUOTE STRING_LITERAL_SINGLE_QUOTE
       STRING_LITERAL_LONG_SINGLE_QUOTE STRING_LITERAL_LONG_QUOTE ))
     (rule iri (alt IRIREF PrefixedName))
     (rule PrefixedName (alt PNAME_LN PNAME_NS))
     (rule BlankNode (alt BLANK_NODE_LABEL ANON))
     (terminals _terminals (seq))
     (terminal IRIREF (seq '<' (star (alt (range "^#x00-#x20<>\"{}|^`\\") UCHAR)) '>'))
     (terminal PNAME_NS (seq (opt PN_PREFIX) ':'))
     (terminal PNAME_LN (seq PNAME_NS PN_LOCAL))
     (terminal BLANK_NODE_LABEL
      (seq '_:' (alt PN_CHARS_U (range "0-9")) (opt (seq (star (alt PN_CHARS '.')) PN_CHARS))))
     (terminal LANGTAG (seq '@' (plus (range "a-zA-Z")) (star (seq '-' (plus (range "a-zA-Z0-9"))))))
     (terminal INTEGER (seq (opt (range "+-")) (plus (range "0-9"))))
     (terminal DECIMAL (seq (opt (range "+-")) (seq (star (range "0-9")) '.' (plus (range "0-9")))))
     (terminal DOUBLE
      (seq
       (opt (range "+-"))
       (alt
        (seq (plus (range "0-9")) '.' (star (range "0-9")) EXPONENT)
        (seq '.' (plus (range "0-9")) EXPONENT)
        (seq (plus (range "0-9")) EXPONENT)) ))
     (terminal EXPONENT (seq (range "eE") (opt (range "+-")) (plus (range "0-9"))))
     (terminal STRING_LITERAL_QUOTE
      (seq '"' (star (alt (range "^#x22#x5C#xA#xD") ECHAR UCHAR)) '"'))
     (terminal STRING_LITERAL_SINGLE_QUOTE
      (seq "'" (star (alt (range "^#x27#x5C#xA#xD") ECHAR UCHAR)) "'"))
     (terminal STRING_LITERAL_LONG_SINGLE_QUOTE
      (seq "'''" (star (seq (opt (alt "'" "''")) (alt (range "^'\\") ECHAR UCHAR))) "'''"))
     (terminal STRING_LITERAL_LONG_QUOTE
      (seq '"""' (star (seq (opt (alt '"' '""')) (alt (range "^\"\\") ECHAR UCHAR))) '"""'))
     (terminal UCHAR
      (alt (seq '\\u' HEX HEX HEX HEX) (seq '\\U' HEX HEX HEX HEX HEX HEX HEX HEX)))
     (terminal ECHAR (seq '\\' (range "tbnrf\\\"'")))
     (terminal NIL (seq '(' (star WS) ')'))
     (terminal WS (alt (hex "#x20") (hex "#x9") (hex "#xD") (hex "#xA")))
     (terminal ANON (seq '[' (star WS) ']'))
     (terminal PN_CHARS_BASE
      (alt
       (range "A-Z")
       (range "a-z")
       (range "#x00C0-#x00D6")
       (range "#x00D8-#x00F6")
       (range "#x00F8-#x02FF")
       (range "#x0370-#x037D")
       (range "#x037F-#x1FFF")
       (range "#x200C-#x200D")
       (range "#x2070-#x218F")
       (range "#x2C00-#x2FEF")
       (range "#x3001-#xD7FF")
       (range "#xF900-#xFDCF")
       (range "#xFDF0-#xFFFD")
       (range "#x10000-#xEFFFF")) )
     (terminal PN_CHARS_U (alt PN_CHARS_BASE '_'))
     (terminal PN_CHARS
      (alt PN_CHARS_U '-'
       (range "0-9")
       (hex "#x00B7")
       (range "#x0300-#x036F")
       (range "#x203F-#x2040")) )
     (terminal PN_PREFIX (seq PN_CHARS_BASE (opt (seq (star (alt PN_CHARS '.')) PN_CHARS))))
     (terminal PN_LOCAL
      (seq
       (alt PN_CHARS_U ':' (range "0-9") PLX)
       (opt (seq (star (alt PN_CHARS '.' ':' PLX)) (alt PN_CHARS ':' PLX)))) )
     (terminal PLX (alt PERCENT PN_LOCAL_ESC))
     (terminal PERCENT (seq '%' HEX HEX))
     (terminal HEX (alt (range "0-9") (range "A-F") (range "a-f")))
     (terminal PN_LOCAL_ESC
      (seq '\\'
       (alt '_' '~' '.' '-' '!' '$' '&' "'" '(' ')' '*' '+' ',' ';' '=' '/' '?' '#'
        '@' '%' )) ))