Published
Edited
May 5, 2020
binOp = left => op => right => ({left, token: {type: tokenType(op), value: op}, right})
num = value => ({token: {type: 'DECIMAL', value}})
unaryOp = op => expr => ({token: {type: `UNARY ${op === '-' ? 'MINUS' : 'PLUS'}`, value: expr}})
parse (expr) ("12*1+3")
parse (expr) ("12+(2*2)+6")
parse (evaluateExpressionsWithParenthesis) ("12+(2*2)+6");
ast = make_AST_tree(parserResult)
parse(allOf([char('J'),char('a')])) ("Jahoda")
parse(text("Jahoda")) ("Jahoda Pohoda")
parse(digit)("12345667890")
parse(allOf([digit, digit, zeroOrOnce(char(".")), digit, digit]))("12.34")
parse(atLeastOnce(char(".")))("...1231.")
parse(allOf([zeroOrMoreTimes(char('.')),atLeastOnce(digit)]))('0123')
parse(ifThenElse(digit)(char('.'))(text('jahoda')))('0.jahoda')
parse(decimal)('-12.232')
parse(ap((n1, _, n2) => n1 + n2)([decimal,char('+'),decimal,eof]))("12+55.7")
parse (expr) ('12/-33')
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