langs a-z

Task/Find-common-directory-path/PowerShell/find-common-directory-path-1.psh

@@ -0,0 +1,26 @@
+# Find Common Directory Path
+# Input is an array of strings holding the paths
+function Get-CommonDirectoryPath($paths){
+
+   # Convert each path into array of tokens (i.e. convert array into jagged array)
+   for($i=0; $i -lt $paths.Count; $i++) {
+      $paths[$i] =  ($paths[$i].TrimStart('/').Split('/'))
+   }
+	
+   # Loop through tokens	
+   $c = -1
+   $found = $false
+   do {		# Do Until loop used to handle paths with different number of directories
+      $t = $paths[0][++$c]
+      for($r = 1; $r -lt $paths.Count; $r++) {
+         if ($t -ne $paths[$r][$c]) { $found=$true; break }
+      }
+   } until ($found)
+
+   # Return the answer
+   for($i=0; $i -lt $c; $i++) {$s += "/"+$paths[0][$i]}
+   return $s
+}
+
+# Main Entry Point
+"The common directory path is " + (Get-CommonDirectoryPath ("/home/user1/tmp/coverage/test", "/home/user1/tmp/covert/operator", "/home/user1/tmp/coven/members"))

Task/Find-common-directory-path/PowerShell/find-common-directory-path-2.psh

@@ -0,0 +1 @@
+The common directory path is /home/user1/tmp