Data commit

Task/Range-expansion/PowerShell/range-expansion-1.psh

@@ -0,0 +1,22 @@
+function range-expansion($array) {
+    function expansion($arr) {
+        if($arr) {
+            $arr = $arr.Split(',')
+             $arr | foreach{
+                $a = $_
+                $b, $c, $d, $e = $a.Split('-')
+                switch($a) {
+                    $b {return $a}
+                    "-$c" {return $a}
+                    "$b-$c" {return "$(([Int]$b)..([Int]$c))"}
+                    "-$c-$d" {return "$(([Int]$("-$c"))..([Int]$d))"}
+                    "-$c--$e" {return "$(([Int]$("-$c"))..([Int]$("-$e")))"}
+                }
+             }
+        } else {""}
+    }
+    $OFS = ", "
+    "$(expansion $array)"
+    $OFS = " "
+}
+range-expansion "-6,-3--1,3-5,7-11,14,15,17-20"

Task/Range-expansion/PowerShell/range-expansion-2.psh

@@ -0,0 +1,42 @@
+function Expand-Range
+{
+    [CmdletBinding()]
+    [OutputType([int])]
+    Param
+    (
+        [Parameter(Mandatory=$true,
+                   Position=0)]
+        [ValidateNotNullOrEmpty()]
+        [ValidatePattern('^[0-9,-]*$')]
+        [string]
+        $Range
+    )
+
+    try
+    {
+        if ($Range -match '-,')       # I'm not good enough to weed this case out with Regex
+        {
+            throw "Input string was not in a correct format."
+        }
+
+        [int[]]$output = $Range -split ',' | ForEach-Object {
+
+            [int[]]$array = $_ -split '(?<=\d)-'
+
+            if ($array.Count -gt 1)   # $array contains one or two elements
+            {
+                $array[0]..$array[1]  # two elements = start and end of range
+            }
+            else
+            {
+                $array                # one element = an integer
+            }
+        }
+    }
+    catch
+    {
+        throw "Input string was not in a correct format."
+    }
+
+    $output
+}

Task/Range-expansion/PowerShell/range-expansion-3.psh

@@ -0,0 +1 @@
+(Expand-Range "-6,-3--1,3-5,7-11,14,15,17-20") -join ", "