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A JavaScript library for creating professional railroad syntax diagrams with clean SVG output. Perfect for language documentation and grammar visualization.
expression = term ["+" expression]
term = factor ["*" term]
factor = constant / variable / "(" expression ")"
variable = "x" / "y" / "z"
constant = 1*digit
digit = "0" / "1" / "2" / "3" / "4" / "5" / "6" / "7" / "8" / "9"