Add robot-name exercise (#130)

* Add `robot-name` exercise

* Add `robot-name` exercise

Author: ErikSchierboom

config.json

@@ -242,6 +242,14 @@
         "prerequisites": [],
         "difficulty": 3
       },
+      {
+        "slug": "robot-name",
+        "name": "Robot Name",
+        "uuid": "d5215b24-89a9-40c0-a397-d2d4b74d6544",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 3
+      },
       {
         "slug": "queen-attack",
         "name": "Queen Attack",

exercises/practice/robot-name/.docs/instructions.append.md

@@ -0,0 +1,5 @@
+# Instructions append
+
+```exercism/note
+As Uiua does **not** have mutable state, the exercise only expects you to generate random names.
+```

exercises/practice/robot-name/.docs/instructions.md

@@ -0,0 +1,14 @@
+# Instructions
+
+Manage robot factory settings.
+
+When a robot comes off the factory floor, it has no name.
+
+The first time you turn on a robot, a random name is generated in the format of two uppercase letters followed by three digits, such as RX837 or BC811.
+
+Every once in a while we need to reset a robot to its factory settings, which means that its name gets wiped.
+The next time you ask, that robot will respond with a new random name.
+
+The names must be random: they should not follow a predictable sequence.
+Using random names means a risk of collisions.
+Your solution must ensure that every existing robot has a unique name.

exercises/practice/robot-name/.meta/config.json

@@ -0,0 +1,18 @@
+{
+  "authors": [
+    "erikschierboom"
+  ],
+  "files": {
+    "solution": [
+      "robot-name.ua"
+    ],
+    "test": [
+      "tests.ua"
+    ],
+    "example": [
+      ".meta/example.ua"
+    ]
+  },
+  "blurb": "Manage robot factory settings.",
+  "source": "A debugging session with Paul Blackwell at gSchool."
+}

exercises/practice/robot-name/.meta/example.ua

@@ -0,0 +1,4 @@
+RandomRange   ← + ⌊× ⊙[⍥⚂]
+RandomLetters ← (RandomRange 26 2 @A)
+RandomDigits  ← (RandomRange 10 3 @0)
+GenerateName  ← (⊂ RandomLetters RandomDigits)

exercises/practice/robot-name/robot-name.ua

@@ -0,0 +1,3 @@
+# Generate a random name for a robot
+# Name
+GenerateName ← |0 (⍤. "Please implement GenerateName" 0)

exercises/practice/robot-name/tests.ua

@@ -0,0 +1,7 @@
+~ "robot-name.ua" ~ GenerateName
+
+# Name has correct format
+⍤⤙≍ 1 ±⧻♭ regex "^[A-Z]{2}\\d{3}$" GenerateName()
+
+# Name is generated randomly
+⍤⤙≍ 25 ⧻◴ [⍥GenerateName] 25