ruby/vers.rb: sort version numbers in ascending order

ruby/vers.rb

@@ -0,0 +1,30 @@
+#!/usr/bin/env ruby
+
+def sort_ver(vers)
+  vers.sort do |v1, v2|
+    v1_info = v1.split(?.).map &:to_i
+    v2_info = v2.split(?.).map &:to_i
+    ord_found = 0
+
+    while ord_found.zero? and not v1_info.empty? and not v2_info.empty?
+      ord_found = v2_info.first <=> v1_info.first
+      v1_info.shift
+      v2_info.shift
+    end
+
+    if ord_found.zero?
+      v2_info.size <=> v1_info.size
+    else
+      ord_found
+    end
+  end
+end
+
+vers = [
+  "0.1.0",  "3.2.1", "2.2.3",
+  "3.2",    "5.0",   "5.0.1",
+  "0.1.1",  "0.1",   "4.2.0",
+  "17.9.2", "4.20",  "18.7.3"
+]
+
+p vers, sort_ver(vers)