20150522_challenge_215_hard_metaprogramming

soln.scala

def parseTable(input:String): Boolean = {
    val StringList = """(\[.+])""".r
    val StringDouble = """(\d+\.\d+)""".r
    val StringInteger = """(\d+)""".r
    val StringBoolean = """(True|False)""".r
    val StringStringorChar = """(.*)""".r

    input match {
        case StringList(n) => n.replace(" ", "").split(",").length > 0
        case StringDouble(d) => d.toDouble != 0.0
        case StringInteger(i) => i.toInt != 0
        case StringBoolean(b) => b == "True"
        case StringStringorChar(s) => s.length > 0
        case _ => false
    }
}

def truthTable() = {
    val inputs = List("Hello, world!", "", "0", "1", "0", "0.0", "[]", "[1,2,3]", "True", "False")
    for (i <- inputs) {
        for (j <- inputs) {
            println(i + " && " + j + " = " + (parseTable(i) && parseTable(j)))
            println(i + " || " + j + " = " + (parseTable(i) && parseTable(j)))
            println("Not " + i + " = " + !(parseTable(i)))
        }
    }
}


output 

scala> truthTable()
Hello, world! && Hello, world! = true
Hello, world! || Hello, world! = true
Not Hello, world! = false
Hello, world! &&  = false
Hello, world! ||  = false
Not Hello, world! = false
Hello, world! && 0 = false
Hello, world! || 0 = false
Not Hello, world! = false
Hello, world! && 1 = true
Hello, world! || 1 = true
Not Hello, world! = false
Hello, world! && 0 = false
Hello, world! || 0 = false
Not Hello, world! = false
Hello, world! && 0.0 = false
Hello, world! || 0.0 = false
Not Hello, world! = false
Hello, world! && [] = true
Hello, world! || [] = true
Not Hello, world! = false
Hello, world! && [1,2,3] = true
Hello, world! || [1,2,3] = true
Not Hello, world! = false
Hello, world! && True = true
Hello, world! || True = true
Not Hello, world! = false
Hello, world! && False = false
Hello, world! || False = false
Not Hello, world! = false
 && Hello, world! = false
 || Hello, world! = false
Not  = true
 &&  = false
 ||  = false
Not  = true
 && 0 = false
 || 0 = false
Not  = true
 && 1 = false
 || 1 = false
Not  = true
 && 0 = false
 || 0 = false
Not  = true
 && 0.0 = false
 || 0.0 = false
Not  = true
 && [] = false
 || [] = false
Not  = true
 && [1,2,3] = false
 || [1,2,3] = false
Not  = true
 && True = false
 || True = false
Not  = true
 && False = false
 || False = false
Not  = true
0 && Hello, world! = false
0 || Hello, world! = false
Not 0 = true
0 &&  = false
0 ||  = false
Not 0 = true
0 && 0 = false
0 || 0 = false
Not 0 = true
0 && 1 = false
0 || 1 = false
Not 0 = true
0 && 0 = false
0 || 0 = false
Not 0 = true
0 && 0.0 = false
0 || 0.0 = false
Not 0 = true
0 && [] = false
0 || [] = false
Not 0 = true
0 && [1,2,3] = false
0 || [1,2,3] = false
Not 0 = true
0 && True = false
0 || True = false
Not 0 = true
0 && False = false
0 || False = false
Not 0 = true
1 && Hello, world! = true
1 || Hello, world! = true
Not 1 = false
1 &&  = false
1 ||  = false
Not 1 = false
1 && 0 = false
1 || 0 = false
Not 1 = false
1 && 1 = true
1 || 1 = true
Not 1 = false
1 && 0 = false
1 || 0 = false
Not 1 = false
1 && 0.0 = false
1 || 0.0 = false
Not 1 = false
1 && [] = true
1 || [] = true
Not 1 = false
1 && [1,2,3] = true
1 || [1,2,3] = true
Not 1 = false
1 && True = true
1 || True = true
Not 1 = false
1 && False = false
1 || False = false
Not 1 = false
0 && Hello, world! = false
0 || Hello, world! = false
Not 0 = true
0 &&  = false
0 ||  = false
Not 0 = true
0 && 0 = false
0 || 0 = false
Not 0 = true
0 && 1 = false
0 || 1 = false
Not 0 = true
0 && 0 = false
0 || 0 = false
Not 0 = true
0 && 0.0 = false
0 || 0.0 = false
Not 0 = true
0 && [] = false
0 || [] = false
Not 0 = true
0 && [1,2,3] = false
0 || [1,2,3] = false
Not 0 = true
0 && True = false
0 || True = false
Not 0 = true
0 && False = false
0 || False = false
Not 0 = true
0.0 && Hello, world! = false
0.0 || Hello, world! = false
Not 0.0 = true
0.0 &&  = false
0.0 ||  = false
Not 0.0 = true
0.0 && 0 = false
0.0 || 0 = false
Not 0.0 = true
0.0 && 1 = false
0.0 || 1 = false
Not 0.0 = true
0.0 && 0 = false
0.0 || 0 = false
Not 0.0 = true
0.0 && 0.0 = false
0.0 || 0.0 = false
Not 0.0 = true
0.0 && [] = false
0.0 || [] = false
Not 0.0 = true
0.0 && [1,2,3] = false
0.0 || [1,2,3] = false
Not 0.0 = true
0.0 && True = false
0.0 || True = false
Not 0.0 = true
0.0 && False = false
0.0 || False = false
Not 0.0 = true
[] && Hello, world! = true
[] || Hello, world! = true
Not [] = false
[] &&  = false
[] ||  = false
Not [] = false
[] && 0 = false
[] || 0 = false
Not [] = false
[] && 1 = true
[] || 1 = true
Not [] = false
[] && 0 = false
[] || 0 = false
Not [] = false
[] && 0.0 = false
[] || 0.0 = false
Not [] = false
[] && [] = true
[] || [] = true
Not [] = false
[] && [1,2,3] = true
[] || [1,2,3] = true
Not [] = false
[] && True = true
[] || True = true
Not [] = false
[] && False = false
[] || False = false
Not [] = false
[1,2,3] && Hello, world! = true
[1,2,3] || Hello, world! = true
Not [1,2,3] = false
[1,2,3] &&  = false
[1,2,3] ||  = false
Not [1,2,3] = false
[1,2,3] && 0 = false
[1,2,3] || 0 = false
Not [1,2,3] = false
[1,2,3] && 1 = true
[1,2,3] || 1 = true
Not [1,2,3] = false
[1,2,3] && 0 = false
[1,2,3] || 0 = false
Not [1,2,3] = false
[1,2,3] && 0.0 = false
[1,2,3] || 0.0 = false
Not [1,2,3] = false
[1,2,3] && [] = true
[1,2,3] || [] = true
Not [1,2,3] = false
[1,2,3] && [1,2,3] = true
[1,2,3] || [1,2,3] = true
Not [1,2,3] = false
[1,2,3] && True = true
[1,2,3] || True = true
Not [1,2,3] = false
[1,2,3] && False = false
[1,2,3] || False = false
Not [1,2,3] = false
True && Hello, world! = true
True || Hello, world! = true
Not True = false
True &&  = false
True ||  = false
Not True = false
True && 0 = false
True || 0 = false
Not True = false
True && 1 = true
True || 1 = true
Not True = false
True && 0 = false
True || 0 = false
Not True = false
True && 0.0 = false
True || 0.0 = false
Not True = false
True && [] = true
True || [] = true
Not True = false
True && [1,2,3] = true
True || [1,2,3] = true
Not True = false
True && True = true
True || True = true
Not True = false
True && False = false
True || False = false
Not True = false
False && Hello, world! = false
False || Hello, world! = false
Not False = true
False &&  = false
False ||  = false
Not False = true
False && 0 = false
False || 0 = false
Not False = true
False && 1 = false
False || 1 = false
Not False = true
False && 0 = false
False || 0 = false
Not False = true
False && 0.0 = false
False || 0.0 = false
Not False = true
False && [] = false
False || [] = false
Not False = true
False && [1,2,3] = false
False || [1,2,3] = false
Not False = true
False && True = false
False || True = false
Not False = true
False && False = false
False || False = false
Not False = true