Add "Bottle Song" exercise and test suite

config.json

@@ -314,6 +314,14 @@
         "prerequisites": [],
         "difficulty": 3
       },
+      {
+        "slug": "bottle-song",
+        "name": "Bottle Song",
+        "uuid": "bf5b0d3a-5a72-479c-94d6-da4f900e5a2c",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 3
+      },
       {
         "slug": "grade-school",
         "name": "Grade School",

exercises/practice/bottle-song/.docs/instructions.md

@@ -0,0 +1,57 @@
+# Instructions
+
+Recite the lyrics to that popular children's repetitive song: Ten Green Bottles.
+
+Note that not all verses are identical.
+
+```text
+Ten green bottles hanging on the wall,
+Ten green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be nine green bottles hanging on the wall.
+
+Nine green bottles hanging on the wall,
+Nine green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be eight green bottles hanging on the wall.
+
+Eight green bottles hanging on the wall,
+Eight green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be seven green bottles hanging on the wall.
+
+Seven green bottles hanging on the wall,
+Seven green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be six green bottles hanging on the wall.
+
+Six green bottles hanging on the wall,
+Six green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be five green bottles hanging on the wall.
+
+Five green bottles hanging on the wall,
+Five green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be four green bottles hanging on the wall.
+
+Four green bottles hanging on the wall,
+Four green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be three green bottles hanging on the wall.
+
+Three green bottles hanging on the wall,
+Three green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be two green bottles hanging on the wall.
+
+Two green bottles hanging on the wall,
+Two green bottles hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be one green bottle hanging on the wall.
+
+One green bottle hanging on the wall,
+One green bottle hanging on the wall,
+And if one green bottle should accidentally fall,
+There'll be no green bottles hanging on the wall.
+```

exercises/practice/bottle-song/.meta/config.json

@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "rabestro"
+  ],
+  "files": {
+    "solution": [
+      "bottle-song.awk"
+    ],
+    "test": [
+      "test-bottle-song.bats"
+    ],
+    "example": [
+      ".meta/example.awk"
+    ]
+  },
+  "blurb": "Produce the lyrics to the popular children's repetitive song: Ten Green Bottles.",
+  "source": "Wikipedia",
+  "source_url": "https://en.wikipedia.org/wiki/Ten_Green_Bottles"
+}

exercises/practice/bottle-song/.meta/example.awk

@@ -0,0 +1,31 @@
+# These variables are initialized on the command line (using '-v'):
+# - startBottles
+# - takeDown
+
+BEGIN {
+    split("One Two Three Four Five Six Seven Eight Nine Ten", Numbers)
+
+    while (takeDown--) {
+        print_verse(startBottles--)
+        if (takeDown) print ""
+    }
+}
+
+function print_verse(bottles) {
+    print first_line(bottles)
+    print first_line(bottles)
+    print "And if one green bottle should accidentally fall,"
+    print last_line(bottles - 1)
+}
+
+function first_line(bottles) {
+    return Numbers[bottles] hanging(bottles) ","
+}
+
+function last_line(bottles) {
+    return "There'll be " tolower(bottles == 0 ? "no" : Numbers[bottles]) hanging(bottles) "."
+}
+
+function hanging(bottles) {
+    return " green bottle" (bottles == 1 ? "" : "s") " hanging on the wall"
+}

exercises/practice/bottle-song/.meta/tests.toml

@@ -0,0 +1,34 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[5a02fd08-d336-4607-8006-246fe6fa9fb0]
+description = "verse -> single verse -> first generic verse"
+
+[77299ca6-545e-4217-a9cc-606b342e0187]
+description = "verse -> single verse -> last generic verse"
+
+[102cbca0-b197-40fd-b548-e99609b06428]
+description = "verse -> single verse -> verse with 2 bottles"
+
+[b8ef9fce-960e-4d85-a0c9-980a04ec1972]
+description = "verse -> single verse -> verse with 1 bottle"
+
+[c59d4076-f671-4ee3-baaa-d4966801f90d]
+description = "verse -> single verse -> verse with 0 bottles"
+
+[7e17c794-402d-4ca6-8f96-4d8f6ee1ec7e]
+description = "lyrics -> multiple verses -> first two verses"
+
+[949868e7-67e8-43d3-9bb4-69277fe020fb]
+description = "lyrics -> multiple verses -> last three verses"
+
+[bc220626-126c-4e72-8df4-fddfc0c3e458]
+description = "lyrics -> multiple verses -> all verses"