decupled stat class
renewal --stat option
updating monadic parser
removed old code
adding refc to Peg
renewal sequence and choice constructor in Grammar
refactoring formatter
adding PegProbe
bugs fixed repeated call counters in packrat parsing
adding data sample of c
output csv
refactoring in PegOptimizer
changed type for characters from char to int
optimization is integrated in Grammar.new()
renewal of optimization
renewal makelist() in Peg
renewal optimizer
renewal formatter
adding probe
adding NoMemo flag to Peg