MonitoringPlugin: add args2checks() for quad check notation

copied from check_naf.py

MyMonPlugin/monitoringplugin.py

@@ -80,6 +80,41 @@ class MonitoringPlugin(object):
 		self._cmdlineoptions_parsed = True
 
 
+	def args2checks(self):
+		checks = []
+		try:
+			separator = self.options.separator
+		except AttributeError:
+			separator = ','
+
+		try:
+			subseparator = self.options.subseparator
+		except AttributeError:
+			subseparator = '+'
+
+		for quad in self.args:
+			quad = quad.split(separator)
+			quad = (quad + ['', '', ''])[:4] # Fix length to 4, fill with ''
+
+			# Convert list of checks to list
+			if subseparator in quad[0]:
+				quad[0] = quad[0].split(subseparator)
+			else:
+				quad[0] = [quad[0],]
+
+			# Convert list of targets to list
+			if subseparator in quad[1]:
+				quad[1] = quad[1].split(subseparator)
+			else:
+				quad[1] = [quad[1],]
+
+			for target in quad[1]:
+				for check in quad[0]:
+					checks.append(tuple([check, target, quad[2], quad[3]]))
+
+		return(checks)
+
+
 	def range_to_limits(self, range):
 		# Check if we must negate result
 		if len(range) > 0 and range[0] == '@':