Adds DSL parser to string arguments, fixing errors

Author: LordHepipud

lib/core/tools/Get-IcingaCheckCommandConfig.psm1

@@ -216,7 +216,7 @@ function Get-IcingaCheckCommandConfig()
         # Loop through parameters of a given command
         foreach ($parameter in $CheckParamList) {
 
-            $IsDataList      = $FALSE;
+            $IsDataList = $FALSE;
 
             # IsNumeric-Check on position to determine the order-value
             If (Test-Numeric($parameter.position) -eq $TRUE) {
@@ -268,6 +268,26 @@ function Get-IcingaCheckCommandConfig()
                         'order' = $Order;
                     }
                 );
+            } elseif ($parameter.type.name -eq 'String') {
+                # Conditional whether type of parameter is String
+                $Basket.Command[$check].arguments.Add(
+                    [string]::Format('-{0}', $parameter.Name), @{
+                        'value'         = @{
+                            'type' = 'Function';
+                            'body' = [string]::Format(
+                                'var str    = macro("{0}");{1}    var argLen = len(str);{1}{1}    if (argLen == 0) {2}{1}        return;{1}    {3}{1}{1}    if (argLen != 0 && str.substr(0,1) == "{4}" && str.substr(argLen - 1, argLen) == "{4}") {2}{1}        return str;{1}    {3}{1}{1}    return ("{4}" + str + "{4}");',
+                                $IcingaCustomVariable,
+                                "`r`n",
+                                '{',
+                                '}',
+                                "'"
+                            );
+                        }
+                        'set_if'        = [string]::Format('{{{{ var str = macro("{0}"); if (len(str) == 0) {{ return false; }} return true; }}}}', $IcingaCustomVariable);
+                        'set_if_format' = 'expression';
+                        'order'         = $Order;
+                    }
+                );
             } elseif ($parameter.type.name -eq 'SecureString') {
                 # Convert out input string as SecureString
                 $Basket.Command[$check].arguments.Add(