Add "Ordinal Numbers" hole

JRaspass · JRaspass · commit 4e38900a25b8 · 2019-07-11T17:34:13.000+01:00
diff --git a/holes.md b/holes.md
@@ -66,6 +66,7 @@ Transform
 * ISBN Check Digit **TODO**
 * Morse Decoder
 * Morse Encoder
+* Ordinal Numbers
 * Pangram Grep
 * Roman to Arabic
 * Seven Segment
diff --git a/routes/ordinal_numbers.go b/routes/ordinal_numbers.go
@@ -0,0 +1,20 @@
+package routes
+
+import (
+	"math/rand"
+	"strconv"
+)
+
+func ordinalNumbers() (args []string, out string) {
+	for _, i := range rand.Perm(200) {
+		s := strconv.Itoa(i)
+
+		args = append(args, s)
+		out += s + ord(i) + "\n"
+	}
+
+	// Drop the trailing newline.
+	out = out[:len(out)-1]
+
+	return
+}
diff --git a/routes/render.go b/routes/render.go
@@ -14,6 +14,24 @@ import (
 	"github.com/JRaspass/code-golf/cookie"
 )
 
+func ord(i int) string {
+	switch i % 10 {
+	case 1:
+		if i%100 != 11 {
+			return "st"
+		}
+	case 2:
+		if i%100 != 12 {
+			return "nd"
+		}
+	case 3:
+		if i%100 != 13 {
+			return "rd"
+		}
+	}
+	return "th"
+}
+
 var tmpl = template.New("").Funcs(template.FuncMap{
 	// NOTE Only handles 0 - 999,999
 	"comma": func(i int) string {
@@ -23,23 +41,7 @@ var tmpl = template.New("").Funcs(template.FuncMap{
 
 		return strconv.Itoa(i)
 	},
-	"ord": func(i int) string {
-		switch i % 10 {
-		case 1:
-			if i%100 != 11 {
-				return "st"
-			}
-		case 2:
-			if i%100 != 12 {
-				return "nd"
-			}
-		case 3:
-			if i%100 != 13 {
-				return "rd"
-			}
-		}
-		return "th"
-	},
+	"ord": ord,
 })
 
 func init() {
diff --git a/routes/solution.go b/routes/solution.go
@@ -44,6 +44,8 @@ func solution(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
 		args, out.Exp = brainfuck()
 	case "morse-decoder", "morse-encoder":
 		args, out.Exp = morse(in.Hole == "morse-decoder")
+	case "ordinal-numbers":
+		args, out.Exp = ordinalNumbers()
 	case "pangram-grep":
 		args, out.Exp = pangramGrep()
 	case "poker":
diff --git a/routes/types.go b/routes/types.go
@@ -248,6 +248,10 @@ A Partridge in a Pear Tree.</blockquote>`,
 		"", "",
 		"odious-numbers", "Odious Numbers", "Fast",
 		"An odious number is a non-negative number that has an odd number of 1s in its binary expansion.<p>Print all the odious numbers from <b>0</b> to <b>50</b> inclusive, each on their own line.<p>Numbers that are not odious are called <a href=evil-numbers>evil numbers</a>.</p>",
+	}, {
+		"", "",
+		"ordinal-numbers", "Ordinal Numbers", "Fast",
+		"Given various integers as arguments, print the argument and its <a href=//en.wikipedia.org/wiki/Ordinal_number_%28linguistics%29>ordinal suffix</a>.",
 	}, {
 		"", "",
 		"pangram-grep", "Pangram Grep", "Medium",
