Language Description

Parsing:

File <- (expression / _+)* !.
FunctionCall <- "(" _* name _*
  (expression _* (expression _*)*)? ")"
expression <- FunctionCall / Variable
  / Number / Text / "(" _* expression _* ")"
Variable <- name
Number <- [0-9]+
Text <- '"' {('\"' / '\\' / [^"])*} '"'
name <- {[a-zA-Z]+}
_ <- [ \n\t]

Text to Parse

(print
    "The golden ratio is:"
    (divide (add (sqrt 5) 1) 2))
(print "A random number:" (random))

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Run

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Language Description

Text to Parse

Parse Tree