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Continuous REPL Parser for user defined expression (using fastparse)

• java - on Mac: brew cask install adoptopenjdk8
• sbt - on Mac: brew install sbt

• 1.34 - 234.5 + 3443 ^ 2 + sqrt(69 - 5) * log(34)
• sqrt(3 ^ 2 + 4 ^ 2)
• sqrt(add(square(3), square(4)))
• add(12.0, 23, -1, 030, 343,23)
• quit or exit

sbt run

sbt assembly

demo

• Add invalid arguments error for functions.
• Add function name auto-completion.
• Add expression color highlighting (multi-color).
• Add expression history and ANSI console edit support.