June 2018 Update

Task/Inverted-syntax/D/inverted-syntax.d

@@ -0,0 +1,14 @@
+#!/usr/bin/rdmd
+
+import std.algorithm;
+
+void main() {
+    assert("Hello, World".length == 12);
+    assert("Cleanliness".startsWith("Clean"));
+
+    auto r = [1, 4, 2, 8, 5, 7]
+        .filter!(n => n > 2)
+        .map!(n => n * 2);
+
+    assert(r.equal([8, 16, 10, 14]));
+}

Task/Inverted-syntax/Factor/inverted-syntax-1.factor

@@ -0,0 +1,4 @@
+1 1 + ! 2
+[ + 1 1 ] reverse call ! 2
+{ 1 2 3 4 5 } [ sq ] map ! { 1 4 9 16 25 }
+[ map [ sq ] { 1 2 3 4 5 } ] reverse call ! { 1 4 9 16 25 }

Task/Inverted-syntax/Factor/inverted-syntax-2.factor

@@ -0,0 +1,4 @@
+USE: infix
+[infix
+    5*(1+1) ! 10
+infix]

Task/Inverted-syntax/Julia/inverted-syntax.julia

@@ -0,0 +1,7 @@
+macro inv(expr, cond)
+    cond isa Expr && cond.head == :if || throw(ArgumentError("$cond is not an if expression"))
+    cond.args[2] = expr
+    return cond
+end
+
+@inv println("Wow! Lucky Guess!") if true else println("Not!") end

Task/Inverted-syntax/Scala/inverted-syntax.scala

@@ -0,0 +1,6 @@
+object Main extends App {
+
+  val raining = true
+  val needUmbrella = raining
+  println(s"Do I need an umbrella?  ${if (needUmbrella) "Yes" else "No"}")
+}