plcopen/plcopen.py
changeset 1730 64d8f52bc8c8
parent 1695 a63bb4025852
child 1732 94ffe74e6895
--- a/plcopen/plcopen.py	Fri Aug 11 15:18:19 2017 +0300
+++ b/plcopen/plcopen.py	Mon Aug 14 19:13:01 2017 +0300
@@ -49,14 +49,14 @@
 VarOrder = ["Local","Temp","Input","Output","InOut","External","Global","Access"]
 
 """
-Define which action qualifier must be associated with a duration 
+Define which action qualifier must be associated with a duration
 """
-QualifierList = OrderedDict([("N", False), ("R", False), ("S", False), 
-    ("L", True), ("D", True), ("P", False), ("P0", False), 
+QualifierList = OrderedDict([("N", False), ("R", False), ("S", False),
+    ("L", True), ("D", True), ("P", False), ("P0", False),
     ("P1", False), ("SD", True), ("DS", True), ("SL", True)])
 
 
-FILTER_ADDRESS_MODEL = "(%%[IQM](?:[XBWDL])?)(%s)((?:\.[0-9]+)*)" 
+FILTER_ADDRESS_MODEL = "(%%[IQM](?:[XBWDL])?)(%s)((?:\.[0-9]+)*)"
 
 def update_address(address, address_model, new_leading):
     result = address_model.match(address)
@@ -73,10 +73,10 @@
     return v1
 
 """
-Helper class for bounding_box calculation 
+Helper class for bounding_box calculation
 """
 class rect:
-    
+
     def __init__(self, x=None, y=None, width=None, height=None):
         self.x_min = x
         self.x_max = None
@@ -86,19 +86,19 @@
             self.x_max = x + width
         if height is not None and y is not None:
             self.y_max = y + height
-    
+
     def update(self, x, y):
         self.x_min = _init_and_compare(min, self.x_min, x)
         self.x_max = _init_and_compare(max, self.x_max, x)
         self.y_min = _init_and_compare(min, self.y_min, y)
         self.y_max = _init_and_compare(max, self.y_max, y)
-        
+
     def union(self, rect):
         self.x_min = _init_and_compare(min, self.x_min, rect.x_min)
         self.x_max = _init_and_compare(max, self.x_max, rect.x_max)
         self.y_min = _init_and_compare(min, self.y_min, rect.y_min)
         self.y_max = _init_and_compare(max, self.y_max, rect.y_max)
-    
+
     def bounding_box(self):
         width = height = None
         if self.x_min is not None and self.x_max is not None:
@@ -125,7 +125,7 @@
     test_result = []
     result = criteria["pattern"].search(text)
     while result is not None:
-        prev_pos=result.endpos        
+        prev_pos=result.endpos
         start = TextLenInRowColumn(text[:result.start()])
         end = TextLenInRowColumn(text[:result.end() - 1])
         test_result.append((start, end, "\n".join(lines[start[0]:end[0] + 1])))
@@ -141,11 +141,11 @@
 PLCOpen_XPath = lambda xpath: etree.XPath(xpath, namespaces=PLCOpenParser.NSMAP)
 
 LOAD_POU_PROJECT_TEMPLATE = """
-<project xmlns:ns1="http://www.plcopen.org/xml/tc6_0201" 
-         xmlns:xhtml="http://www.w3.org/1999/xhtml" 
-         xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
+<project xmlns:ns1="http://www.plcopen.org/xml/tc6_0201"
+         xmlns:xhtml="http://www.w3.org/1999/xhtml"
+         xmlns:xsd="http://www.w3.org/2001/XMLSchema"
          xmlns="http://www.plcopen.org/xml/tc6_0201">
-  <fileHeader companyName="" productName="" productVersion="" 
+  <fileHeader companyName="" productName="" productVersion=""
               creationDateTime="1970-01-01T00:00:00"/>
   <contentHeader name="paste_project">
     <coordinateInfo>
@@ -176,8 +176,8 @@
 PLCOpen_v1_xml = PLCOpen_v1_file.read()
 PLCOpen_v1_file.close()
 PLCOpen_v1_xml = PLCOpen_v1_xml.replace(
-        "http://www.plcopen.org/xml/tc6.xsd", 
-        "http://www.plcopen.org/xml/tc6_0201") 
+        "http://www.plcopen.org/xml/tc6.xsd",
+        "http://www.plcopen.org/xml/tc6_0201")
 PLCOpen_v1_xsd = etree.XMLSchema(etree.fromstring(PLCOpen_v1_xml))
 
 # XPath for file compatibility process
@@ -190,21 +190,21 @@
 
 def LoadProjectXML(project_xml):
     project_xml = project_xml.replace(
-        "http://www.plcopen.org/xml/tc6.xsd", 
+        "http://www.plcopen.org/xml/tc6.xsd",
         "http://www.plcopen.org/xml/tc6_0201")
     for cre, repl in [
         (re.compile("(?<!<xhtml:p>)(?:<!\[CDATA\[)"), "<xhtml:p><![CDATA["),
         (re.compile("(?:]]>)(?!</xhtml:p>)"), "]]></xhtml:p>")]:
         project_xml = cre.sub(repl, project_xml)
-    
+
     try:
         tree, error = PLCOpenParser.LoadXMLString(project_xml)
         if error is None:
             return tree, None
-        
+
         if PLCOpen_v1_xsd.validate(tree):
             # Make file compatible with PLCOpen v2
-            
+
             # Update resource interval value
             for resource in ProjectResourcesXPath(tree):
                 for task in resource.gettask():
@@ -229,13 +229,13 @@
                                 else:
                                     text += "%dms"%(time_values[3] / 1000)
                             task.set("interval", text)
-                
+
                 # Update resources pou instance attributes
                 for pouInstance in ResourceInstancesXpath(resource):
                     type_name = pouInstance.attrib.pop("type")
                     if type_name is not None:
                         pouInstance.set("typeName", type_name)
-            
+
             # Update transitions condition
             for transition_condition in TransitionsConditionXPath(tree):
                 connections = ConditionConnectionsXPath(transition_condition)
@@ -245,23 +245,23 @@
                     connectionPointIn.setrelPositionXY(0, 0)
                     for connection in connections:
                         connectionPointIn.append(connection)
-            
+
             # Update actionBlocks
             for actionBlock in ActionBlocksXPath(tree):
                 for connectionPointOut in ActionBlocksConnectionPointOutXPath(actionBlock):
                     actionBlock.remove(connectionPointOut)
-                    
+
                 for action in actionBlock.getaction():
                     action.set("localId", "0")
                     relPosition = PLCOpenParser.CreateElement("relPosition", "action")
                     relPosition.set("x", "0")
                     relPosition.set("y", "0")
                     action.setrelPosition(relPosition)
-            
+
             return tree, None
-        
+
         return tree, error
-    
+
     except Exception, e:
         return None, e.message
 
@@ -288,9 +288,9 @@
 def SaveProject(project, filepath):
     project_file = open(filepath, 'w')
     project_file.write(etree.tostring(
-        project, 
-        pretty_print=True, 
-        xml_declaration=True, 
+        project,
+        pretty_print=True,
+        xml_declaration=True,
         encoding='utf-8'))
     project_file.close()
 
@@ -302,7 +302,7 @@
         text = pattern.sub(new_name, text)
         self.setanyText(text)
     setattr(cls, "updateElementName", updateElementName)
-    
+
     def updateElementAddress(self, address_model, new_leading):
         text = self.getanyText()
         startpos = 0
@@ -315,28 +315,28 @@
             result = address_model.search(text, startpos)
         self.setanyText(text)
     setattr(cls, "updateElementAddress", updateElementAddress)
-    
+
     def hasblock(self, block_type):
-        text = self.getanyText()        
+        text = self.getanyText()
         pattern = re.compile('\\b' + block_type + '\\b', re.IGNORECASE)
         return pattern.search(text) is not None
     setattr(cls, "hasblock", hasblock)
-    
+
     def Search(self, criteria, parent_infos):
         return [(tuple(parent_infos),) + result for result in TestTextElement(self.getanyText(), criteria)]
     setattr(cls, "Search", Search)
-    
+
 cls = PLCOpenParser.GetElementClass("project")
 if cls:
-    
+
     def setname(self, name):
         self.contentHeader.setname(name)
     setattr(cls, "setname", setname)
-        
+
     def getname(self):
         return self.contentHeader.getname()
     setattr(cls, "getname", getname)
-    
+
     def getfileHeader(self):
         fileheader_obj = self.fileHeader
         return {
@@ -351,7 +351,7 @@
                 ("contentDescription", fileheader_obj.getcontentDescription())]
         }
     setattr(cls, "getfileHeader", getfileHeader)
-    
+
     def setfileHeader(self, fileheader):
         fileheader_obj = self.fileHeader
         for attr in ["companyName", "companyURL", "productName",
@@ -361,7 +361,7 @@
             if value is not None:
                 setattr(fileheader_obj, attr, value)
     setattr(cls, "setfileHeader", setfileHeader)
-    
+
     def getcontentHeader(self):
         contentheader_obj = self.contentHeader
         contentheader = {
@@ -378,7 +378,7 @@
         contentheader["scaling"] = self.contentHeader.getscaling()
         return contentheader
     setattr(cls, "getcontentHeader", getcontentHeader)
-    
+
     def setcontentHeader(self, contentheader):
         contentheader_obj = self.contentHeader
         for attr, value in contentheader.iteritems():
@@ -392,7 +392,7 @@
             elif attr in ["modificationDateTime", "organization", "language"]:
                 setattr(contentheader_obj, attr, value)
     setattr(cls, "setcontentHeader", setcontentHeader)
-    
+
     def gettypeElementFunc(element_type):
         elements_xpath = PLCOpen_XPath(
             "ppx:types/ppx:%(element_type)ss/ppx:%(element_type)s[@name=$name]" % locals())
@@ -402,7 +402,7 @@
                 return elements[0]
             return None
         return gettypeElement
-    
+
     datatypes_xpath = PLCOpen_XPath("ppx:types/ppx:dataTypes/ppx:dataType")
     filtered_datatypes_xpath = PLCOpen_XPath(
         "ppx:types/ppx:dataTypes/ppx:dataType[@name!=$exclude]")
@@ -411,43 +411,43 @@
             return filtered_datatypes_xpath(self, exclude=exclude)
         return datatypes_xpath(self)
     setattr(cls, "getdataTypes", getdataTypes)
-    
+
     setattr(cls, "getdataType", gettypeElementFunc("dataType"))
-    
+
     def appenddataType(self, name):
         if self.getdataType(name) is not None:
             raise ValueError, "\"%s\" Data Type already exists !!!"%name
         self.types.appenddataTypeElement(name)
     setattr(cls, "appenddataType", appenddataType)
-        
+
     def insertdataType(self, index, datatype):
         self.types.insertdataTypeElement(index, datatype)
     setattr(cls, "insertdataType", insertdataType)
-    
+
     def removedataType(self, name):
         self.types.removedataTypeElement(name)
     setattr(cls, "removedataType", removedataType)
-    
+
     def getpous(self, exclude=None, filter=[]):
         return self.xpath(
-            "ppx:types/ppx:pous/ppx:pou%s%s" % 
+            "ppx:types/ppx:pous/ppx:pou%s%s" %
                 (("[@name!='%s']" % exclude) if exclude is not None else '',
                  ("[%s]" % " or ".join(
                     map(lambda x: "@pouType='%s'" % x, filter)))
                  if len(filter) > 0 else ""),
             namespaces=PLCOpenParser.NSMAP)
     setattr(cls, "getpous", getpous)
-    
+
     setattr(cls, "getpou", gettypeElementFunc("pou"))
-    
+
     def appendpou(self, name, pou_type, body_type):
         self.types.appendpouElement(name, pou_type, body_type)
     setattr(cls, "appendpou", appendpou)
-        
+
     def insertpou(self, index, pou):
         self.types.insertpouElement(index, pou)
     setattr(cls, "insertpou", insertpou)
-    
+
     def removepou(self, name):
         self.types.removepouElement(name)
     setattr(cls, "removepou", removepou)
@@ -473,7 +473,7 @@
         new_configuration = PLCOpenParser.CreateElement("configuration", "configurations")
         new_configuration.setname(name)
         self.instances.configurations.appendconfiguration(new_configuration)
-    setattr(cls, "addconfiguration", addconfiguration)    
+    setattr(cls, "addconfiguration", addconfiguration)
 
     def removeconfiguration(self, name):
         configuration = self.getconfiguration(name)
@@ -481,7 +481,7 @@
             raise ValueError, ("\"%s\" configuration doesn't exist !!!") % name
         self.instances.configurations.remove(configuration)
     setattr(cls, "removeconfiguration", removeconfiguration)
-    
+
     resources_xpath = PLCOpen_XPath(
         "ppx:instances/ppx:configurations/ppx:configuration[@name=$configname]/ppx:resource[@name=$name]")
     def getconfigurationResource(self, config_name, name):
@@ -562,11 +562,11 @@
 
 cls = PLCOpenParser.GetElementClass("contentHeader", "project")
 if cls:
-    
+
     def setpageSize(self, width, height):
         self.coordinateInfo.setpageSize(width, height)
     setattr(cls, "setpageSize", setpageSize)
-    
+
     def getpageSize(self):
         return self.coordinateInfo.getpageSize()
     setattr(cls, "getpageSize", getpageSize)
@@ -575,7 +575,7 @@
         for language, (x, y) in scaling.items():
             self.coordinateInfo.setscaling(language, x, y)
     setattr(cls, "setscaling", setscaling)
-    
+
     def getscaling(self):
         scaling = {}
         scaling["FBD"] = self.coordinateInfo.getscaling("FBD")
@@ -595,7 +595,7 @@
             self.pageSize.setx(width)
             self.pageSize.sety(height)
     setattr(cls, "setpageSize", setpageSize)
-    
+
     def getpageSize(self):
         if self.pageSize is not None:
             return self.pageSize.getx(), self.pageSize.gety()
@@ -613,7 +613,7 @@
             self.sfc.scaling.setx(x)
             self.sfc.scaling.sety(y)
     setattr(cls, "setscaling", setscaling)
-    
+
     def getscaling(self, language):
         if language == "FBD":
             return self.fbd.scaling.getx(), self.fbd.scaling.gety()
@@ -685,7 +685,7 @@
 
 cls = PLCOpenParser.GetElementClass("configuration", "configurations")
 if cls:
-    
+
     def addglobalVar(self, var_type, name, location="", description=""):
         globalvars = self.getglobalVars()
         if len(globalvars) == 0:
@@ -701,7 +701,7 @@
             var.setdocumentation(ft)
         globalvars[-1].appendvariable(var)
     setattr(cls, "addglobalVar", addglobalVar)
-    
+
     def updateElementName(self, old_name, new_name):
         _updateConfigurationResourceElementName(self, old_name, new_name)
         for resource in self.getresource():
@@ -727,7 +727,7 @@
                 search_result.extend(resource.Search(criteria, parent_infos))
         return search_result
     setattr(cls, "Search", Search)
-    
+
 cls = PLCOpenParser.GetElementClass("resource", "configuration")
 if cls:
     def updateElementName(self, old_name, new_name):
@@ -788,7 +788,7 @@
     setattr(cls, "updateElementAddress", updateElementAddress)
 
     def Search(self, criteria, parent_infos=[]):
-        return _Search([("single", self.getsingle()), 
+        return _Search([("single", self.getsingle()),
                         ("interval", self.getinterval()),
                         ("priority", str(self.getpriority()))],
                        criteria, parent_infos)
@@ -802,7 +802,7 @@
     setattr(cls, "updateElementName", updateElementName)
 
     def Search(self, criteria, parent_infos=[]):
-        return _Search([("name", self.getname()), 
+        return _Search([("name", self.getname()),
                         ("type", self.gettypeName())],
                        criteria, parent_infos)
     setattr(cls, "Search", Search)
@@ -822,22 +822,22 @@
         elif vartype_content_name == "array":
             base_type = vartype_content.baseType.getcontent()
             base_type_name = base_type.getLocalTag()
-            # Array derived directly from a user defined type 
+            # Array derived directly from a user defined type
             if base_type_name == "derived":
                 basetype_name = base_type.getname()
-            # Array derived directly from a string type 
+            # Array derived directly from a string type
             elif base_type_name in ["string", "wstring"]:
                 basetype_name = base_type_name.upper()
-            # Array derived directly from an elementary type 
+            # Array derived directly from an elementary type
             else:
                 basetype_name = base_type_name
             return "ARRAY [%s] OF %s" % (",".join(map(lambda x : "%s..%s" % (x.getlower(), x.getupper()), vartype_content.getdimension())), basetype_name)
         # Variable type is an elementary type
         return vartype_content_name
     setattr(cls, "gettypeAsText", gettypeAsText)
-    
+
     def Search(self, criteria, parent_infos=[]):
-        search_result = _Search([("name", self.getname()), 
+        search_result = _Search([("name", self.getname()),
                                  ("type", self.gettypeAsText()),
                                  ("location", self.getaddress())],
                                 criteria, parent_infos)
@@ -855,7 +855,7 @@
     def getdataTypeElements(self):
         return self.dataTypes.getdataType()
     setattr(cls, "getdataTypeElements", getdataTypeElements)
-    
+
     def getdataTypeElement(self, name):
         elements = self.dataTypes.getdataType()
         for element in elements:
@@ -870,11 +870,11 @@
         new_datatype.setname(name)
         new_datatype.baseType.setcontent(PLCOpenParser.CreateElement("BOOL", "dataType"))
     setattr(cls, "appenddataTypeElement", appenddataTypeElement)
-    
+
     def insertdataTypeElement(self, index, dataType):
         self.dataTypes.insertdataType(index, dataType)
     setattr(cls, "insertdataTypeElement", insertdataTypeElement)
-    
+
     def removedataTypeElement(self, name):
         found = False
         for element in self.dataTypes.getdataType():
@@ -885,11 +885,11 @@
         if not found:
             raise ValueError, _("\"%s\" Data Type doesn't exist !!!")%name
     setattr(cls, "removedataTypeElement", removedataTypeElement)
-    
+
     def getpouElements(self):
         return self.pous.getpou()
     setattr(cls, "getpouElements", getpouElements)
-    
+
     def getpouElement(self, name):
         elements = self.pous.getpou()
         for element in elements:
@@ -909,11 +909,11 @@
         new_pou.appendbody(PLCOpenParser.CreateElement("body", "pou"))
         new_pou.setbodyType(body_type)
     setattr(cls, "appendpouElement", appendpouElement)
-        
+
     def insertpouElement(self, index, pou):
         self.pous.insertpou(index, pou)
     setattr(cls, "insertpouElement", insertpouElement)
-    
+
     def removepouElement(self, name):
         found = False
         for element in self.pous.getpou():
@@ -941,7 +941,7 @@
 cls = PLCOpenParser.GetElementClass("dataType", "dataTypes")
 if cls:
     setattr(cls, "updateElementName", _updateBaseTypeElementName)
-    
+
     def Search(self, criteria, parent_infos=[]):
         search_result = []
         filter = criteria["filter"]
@@ -956,7 +956,7 @@
 
 cls = PLCOpenParser.GetElementClass("dataType")
 if cls:
-    
+
     def updateElementName(self, old_name, new_name):
         content_name = self.content.getLocalTag()
         if content_name in ["derived", "array", "subrangeSigned", "subrangeUnsigned"]:
@@ -987,7 +987,7 @@
         if TextMatched(self.name, old_name):
             self.name = new_name
     setattr(cls, "updateElementName", updateElementName)
-    
+
     def Search(self, criteria, parent_infos=[]):
         return [(tuple(parent_infos),) + result for result in TestTextElement(self.name, criteria)]
     setattr(cls, "Search", Search)
@@ -995,7 +995,7 @@
 cls = PLCOpenParser.GetElementClass("array", "dataType")
 if cls:
     setattr(cls, "updateElementName", _updateBaseTypeElementName)
-    
+
     def Search(self, criteria, parent_infos=[]):
         search_result = self.baseType.Search(criteria, parent_infos)
         for i, dimension in enumerate(self.getdimension()):
@@ -1024,11 +1024,11 @@
 
 cls = PLCOpenParser.GetElementClass("enum", "dataType")
 if cls:
-    
+
     def updateElementName(self, old_name, new_name):
         pass
     setattr(cls, "updateElementName", updateElementName)
-    
+
     enumerated_datatype_values_xpath = PLCOpen_XPath("ppx:values/ppx:value")
     def Search(self, criteria, parent_infos=[]):
         search_result = []
@@ -1044,21 +1044,21 @@
     if type_content_type == "derived":
         return type_content.getname()
     return type_content_type.upper()
-    
+
 cls = PLCOpenParser.GetElementClass("pou", "pous")
 if cls:
-    
+
     block_inputs_xpath = PLCOpen_XPath(
         "ppx:interface/*[self::ppx:inputVars or self::ppx:inOutVars]/ppx:variable")
     block_outputs_xpath = PLCOpen_XPath(
         "ppx:interface/*[self::ppx:outputVars or self::ppx:inOutVars]/ppx:variable")
-    def getblockInfos(self): 
+    def getblockInfos(self):
         block_infos = {
-            "name" : self.getname(), 
-            "type" : self.getpouType(), 
+            "name" : self.getname(),
+            "type" : self.getpouType(),
             "extensible" : False,
-            "inputs" : [], 
-            "outputs" : [], 
+            "inputs" : [],
+            "outputs" : [],
             "comment" : self.getdescription()}
         if self.interface is not None:
             return_type = self.interface.getreturnType()
@@ -1071,15 +1071,15 @@
             block_infos["outputs"].extend(
                 [(var.getname(), _getvariableTypeinfos(var.type), "none")
                  for var in block_outputs_xpath(self)])
-            
-        block_infos["usage"] = ("\n (%s) => (%s)" % 
-            (", ".join(["%s:%s" % (input[1], input[0]) 
+
+        block_infos["usage"] = ("\n (%s) => (%s)" %
+            (", ".join(["%s:%s" % (input[1], input[0])
                         for input in block_infos["inputs"]]),
-             ", ".join(["%s:%s" % (output[1], output[0]) 
+             ", ".join(["%s:%s" % (output[1], output[0])
                         for output in block_infos["outputs"]])))
         return block_infos
     setattr(cls, "getblockInfos", getblockInfos)
-    
+
     def setdescription(self, description):
         doc = self.getdocumentation()
         if doc is None:
@@ -1087,14 +1087,14 @@
             self.setdocumentation(doc)
         doc.setanyText(description)
     setattr(cls, "setdescription", setdescription)
-    
+
     def getdescription(self):
         doc = self.getdocumentation()
         if doc is not None:
             return doc.getanyText()
         return ""
     setattr(cls, "getdescription", getdescription)
-    
+
     def setbodyType(self, body_type):
         if len(self.body) > 0:
             if body_type in ["IL", "ST", "LD", "FBD", "SFC"]:
@@ -1102,66 +1102,66 @@
             else:
                 raise ValueError, "%s isn't a valid body type!"%type
     setattr(cls, "setbodyType", setbodyType)
-    
+
     def getbodyType(self):
         if len(self.body) > 0:
             return self.body[0].getcontent().getLocalTag()
     setattr(cls, "getbodyType", getbodyType)
-    
+
     def resetexecutionOrder(self):
         if len(self.body) > 0:
             self.body[0].resetexecutionOrder()
     setattr(cls, "resetexecutionOrder", resetexecutionOrder)
-    
+
     def compileexecutionOrder(self):
         if len(self.body) > 0:
             self.body[0].compileexecutionOrder()
     setattr(cls, "compileexecutionOrder", compileexecutionOrder)
-    
+
     def setelementExecutionOrder(self, instance, new_executionOrder):
         if len(self.body) > 0:
             self.body[0].setelementExecutionOrder(instance, new_executionOrder)
     setattr(cls, "setelementExecutionOrder", setelementExecutionOrder)
-    
+
     def addinstance(self, instance):
         if len(self.body) > 0:
             self.body[0].appendcontentInstance(instance)
     setattr(cls, "addinstance", addinstance)
-    
+
     def getinstances(self):
         if len(self.body) > 0:
             return self.body[0].getcontentInstances()
         return []
     setattr(cls, "getinstances", getinstances)
-    
+
     def getinstance(self, id):
         if len(self.body) > 0:
             return self.body[0].getcontentInstance(id)
         return None
     setattr(cls, "getinstance", getinstance)
-    
+
     def getinstancesIds(self):
         if len(self.body) > 0:
             return self.body[0].getcontentInstancesIds()
         return []
     setattr(cls, "getinstancesIds", getinstancesIds)
-    
+
     def getinstanceByName(self, name):
         if len(self.body) > 0:
             return self.body[0].getcontentInstanceByName(name)
         return None
     setattr(cls, "getinstanceByName", getinstanceByName)
-    
+
     def removeinstance(self, id):
         if len(self.body) > 0:
             self.body[0].removecontentInstance(id)
     setattr(cls, "removeinstance", removeinstance)
-    
+
     def settext(self, text):
         if len(self.body) > 0:
             self.body[0].settext(text)
     setattr(cls, "settext", settext)
-    
+
     def gettext(self):
         if len(self.body) > 0:
             return self.body[0].gettext()
@@ -1178,17 +1178,17 @@
                 vars.append((reverse_types[varlist.getLocalTag()], varlist))
         return vars
     setattr(cls, "getvars", getvars)
-    
+
     def setvars(self, vars):
         if self.interface is None:
             self.interface = PLCOpenParser.CreateElement("interface", "pou")
         self.interface.setcontent(vars)
     setattr(cls, "setvars", setvars)
-        
+
     def addpouExternalVar(self, var_type, name):
         self.addpouVar(var_type, name, "externalVars")
     setattr(cls, "addpouExternalVar", addpouExternalVar)
-    
+
     def addpouVar(self, var_type, name, var_class="localVars", location="", description="", initval=""):
         if self.interface is None:
             self.interface = PLCOpenParser.CreateElement("interface", "pou")
@@ -1218,11 +1218,11 @@
             el = PLCOpenParser.CreateElement("initialValue", "variable")
             el.setvalue(initval)
             var.setinitialValue(el)
-        
+
         varlist.appendvariable(var)
     setattr(cls, "addpouVar", addpouVar)
     setattr(cls, "addpouLocalVar", addpouVar)
-    
+
     def changepouVar(self, old_type, old_name, new_type, new_name):
         if self.interface is not None:
             content = self.interface.getcontent()
@@ -1236,7 +1236,7 @@
                             vartype_content.setname(new_type)
                             return
     setattr(cls, "changepouVar", changepouVar)
-    
+
     def removepouVar(self, var_type, name):
         if self.interface is not None:
             content = self.interface.getcontent()
@@ -1255,14 +1255,14 @@
         if self.getbodyType() in ["SFC"]:
             for instance in self.getinstances():
                 if isinstance(instance, PLCOpenParser.GetElementClass("step", "sfcObjects")) and TextMatched(instance.getname(), name):
-                    return True         
+                    return True
         return False
     setattr(cls, "hasstep", hasstep)
-    
+
     def hasblock(self, name=None, block_type=None):
         if self.getbodyType() in ["FBD", "LD", "SFC"]:
             for instance in self.getinstances():
-                if (isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")) and 
+                if (isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")) and
                     (TextMatched(instance.getinstanceName(), name) or TextMatched(instance.gettypeName(), block_type))):
                     return True
             if self.transitions:
@@ -1279,7 +1279,7 @@
             return self.body[0].hasblock(block_type)
         return False
     setattr(cls, "hasblock", hasblock)
-    
+
     def addtransition(self, name, body_type):
         if self.transitions is None:
             self.addtransitions()
@@ -1291,7 +1291,7 @@
         if body_type == "ST":
             transition.settext(":= ;")
     setattr(cls, "addtransition", addtransition)
-    
+
     def gettransition(self, name):
         if self.transitions is not None:
             for transition in self.transitions.gettransition():
@@ -1299,13 +1299,13 @@
                     return transition
         return None
     setattr(cls, "gettransition", gettransition)
-        
+
     def gettransitionList(self):
         if self.transitions is not None:
             return self.transitions.gettransition()
         return []
     setattr(cls, "gettransitionList", gettransitionList)
-    
+
     def removetransition(self, name):
         if self.transitions is not None:
             removed = False
@@ -1314,7 +1314,7 @@
                     if transition.getbodyType() in ["FBD", "LD", "SFC"]:
                         for instance in transition.getinstances():
                             if isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")):
-                                self.removepouVar(instance.gettypeName(), 
+                                self.removepouVar(instance.gettypeName(),
                                                   instance.getinstanceName())
                     self.transitions.remove(transition)
                     removed = True
@@ -1332,7 +1332,7 @@
         action.setname(name)
         action.setbodyType(body_type)
     setattr(cls, "addaction", addaction)
-    
+
     def getaction(self, name):
         if self.actions is not None:
             for action in self.actions.getaction():
@@ -1340,13 +1340,13 @@
                     return action
         return None
     setattr(cls, "getaction", getaction)
-    
+
     def getactionList(self):
         if self.actions is not None:
             return self.actions.getaction()
         return []
     setattr(cls, "getactionList", getactionList)
-    
+
     def removeaction(self, name):
         if self.actions is not None:
             removed = False
@@ -1355,7 +1355,7 @@
                     if action.getbodyType() in ["FBD", "LD", "SFC"]:
                         for instance in action.getinstances():
                             if isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")):
-                                self.removepouVar(instance.gettypeName(), 
+                                self.removepouVar(instance.gettypeName(),
                                                   instance.getinstanceName())
                     self.actions.remove(action)
                     removed = True
@@ -1417,7 +1417,7 @@
                         if result is not None:
                             content.remove(variable)
     setattr(cls, "removeVariableByFilter", removeVariableByFilter)
-    
+
     def Search(self, criteria, parent_infos=[]):
         search_result = []
         filter = criteria["filter"]
@@ -1494,7 +1494,7 @@
 def hasblock(self, name=None, block_type=None):
     if self.getbodyType() in ["FBD", "LD", "SFC"]:
         for instance in self.getinstances():
-            if (isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")) and 
+            if (isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")) and
                 (TextMatched(instance.getinstanceName(), name) or TextMatched(instance.gettypeName(), block_type))):
                 return True
     elif block_type is not None:
@@ -1506,7 +1506,7 @@
 
 def updateElementAddress(self, address_model, new_leading):
     self.body.updateElementAddress(address_model, new_leading)
-    
+
 
 cls = PLCOpenParser.GetElementClass("transition", "transitions")
 if cls:
@@ -1526,7 +1526,7 @@
     setattr(cls, "hasblock", hasblock)
     setattr(cls, "updateElementName", updateElementName)
     setattr(cls, "updateElementAddress", updateElementAddress)
-    
+
     def Search(self, criteria, parent_infos):
         search_result = []
         parent_infos = parent_infos[:-1] + ["T::%s::%s" % (parent_infos[-1].split("::")[1], self.getname())]
@@ -1554,7 +1554,7 @@
     setattr(cls, "hasblock", hasblock)
     setattr(cls, "updateElementName", updateElementName)
     setattr(cls, "updateElementAddress", updateElementAddress)
-    
+
     def Search(self, criteria, parent_infos):
         search_result = []
         parent_infos = parent_infos[:-1] + ["A::%s::%s" % (parent_infos[-1].split("::")[1], self.getname())]
@@ -1571,24 +1571,24 @@
     def resetcurrentExecutionOrderId(self):
         object.__setattr__(self, "currentExecutionOrderId", 0)
     setattr(cls, "resetcurrentExecutionOrderId", resetcurrentExecutionOrderId)
-    
+
     def getnewExecutionOrderId(self):
         object.__setattr__(self, "currentExecutionOrderId", self.currentExecutionOrderId + 1)
         return self.currentExecutionOrderId
     setattr(cls, "getnewExecutionOrderId", getnewExecutionOrderId)
-    
+
     def resetexecutionOrder(self):
         if self.content.getLocalTag() == "FBD":
             for element in self.content.getcontent():
-                if not isinstance(element, (PLCOpenParser.GetElementClass("comment", "commonObjects"), 
-                                            PLCOpenParser.GetElementClass("connector", "commonObjects"), 
+                if not isinstance(element, (PLCOpenParser.GetElementClass("comment", "commonObjects"),
+                                            PLCOpenParser.GetElementClass("connector", "commonObjects"),
                                             PLCOpenParser.GetElementClass("continuation", "commonObjects"))):
                     element.setexecutionOrderId(0)
             self.checkedBlocksDict.clear()
         else:
             raise TypeError, _("Can only generate execution order on FBD networks!")
     setattr(cls, "resetexecutionOrder", resetexecutionOrder)
-    
+
     def compileexecutionOrder(self):
         if self.content.getLocalTag() == "FBD":
             self.resetexecutionOrder()
@@ -1602,7 +1602,7 @@
         else:
             raise TypeError, _("Can only generate execution order on FBD networks!")
     setattr(cls, "compileexecutionOrder", compileexecutionOrder)
-    
+
     def compileelementExecutionOrder(self, link):
         if self.content.getLocalTag() == "FBD":
             localid = link.getrefLocalId()
@@ -1626,7 +1626,7 @@
         else:
             raise TypeError, _("Can only generate execution order on FBD networks!")
     setattr(cls, "compileelementExecutionOrder", compileelementExecutionOrder)
-    
+
     def setelementExecutionOrder(self, instance, new_executionOrder):
         if self.content.getLocalTag() == "FBD":
             old_executionOrder = instance.getexecutionOrderId()
@@ -1642,21 +1642,21 @@
         else:
             raise TypeError, _("Can only generate execution order on FBD networks!")
     setattr(cls, "setelementExecutionOrder", setelementExecutionOrder)
-    
+
     def appendcontentInstance(self, instance):
         if self.content.getLocalTag() in ["LD","FBD","SFC"]:
             self.content.appendcontent(instance)
         else:
             raise TypeError, _("%s body don't have instances!")%self.content.getLocalTag()
     setattr(cls, "appendcontentInstance", appendcontentInstance)
-    
+
     def getcontentInstances(self):
         if self.content.getLocalTag() in ["LD","FBD","SFC"]:
             return self.content.getcontent()
         else:
             raise TypeError, _("%s body don't have instances!")%self.content.getLocalTag()
     setattr(cls, "getcontentInstances", getcontentInstances)
-    
+
     instance_by_id_xpath = PLCOpen_XPath("*[@localId=$localId]")
     instance_by_name_xpath = PLCOpen_XPath("ppx:block[@instanceName=$name]")
     def getcontentInstance(self, local_id):
@@ -1668,7 +1668,7 @@
         else:
             raise TypeError, _("%s body don't have instances!")%self.content.getLocalTag()
     setattr(cls, "getcontentInstance", getcontentInstance)
-    
+
     def getcontentInstancesIds(self):
         if self.content.getLocalTag() in ["LD","FBD","SFC"]:
             return OrderedDict([(instance.getlocalId(), True)
@@ -1676,7 +1676,7 @@
         else:
             raise TypeError, _("%s body don't have instances!")%self.content.getLocalTag()
     setattr(cls, "getcontentInstancesIds", getcontentInstancesIds)
-    
+
     def getcontentInstanceByName(self, name):
         if self.content.getLocalTag() in ["LD","FBD","SFC"]:
             instance = instance_by_name_xpath(self.content)
@@ -1686,7 +1686,7 @@
         else:
             raise TypeError, _("%s body don't have instances!")%self.content.getLocalTag()
     setattr(cls, "getcontentInstanceByName", getcontentInstanceByName)
-    
+
     def removecontentInstance(self, local_id):
         if self.content.getLocalTag() in ["LD","FBD","SFC"]:
             instance = instance_by_id_xpath(self.content, localId=local_id)
@@ -1697,7 +1697,7 @@
         else:
             raise TypeError, "%s body don't have instances!"%self.content.getLocalTag()
     setattr(cls, "removecontentInstance", removecontentInstance)
-    
+
     def settext(self, text):
         if self.content.getLocalTag() in ["IL","ST"]:
             self.content.setanyText(text)
@@ -1711,14 +1711,14 @@
         else:
             raise TypeError, _("%s body don't have text!")%self.content.getLocalTag()
     setattr(cls, "gettext", gettext)
-    
+
     def hasblock(self, block_type):
         if self.content.getLocalTag() in ["IL","ST"]:
             return self.content.hasblock(block_type)
         else:
             raise TypeError, _("%s body don't have text!")%self.content.getLocalTag()
     setattr(cls, "hasblock", hasblock)
-    
+
     def updateElementName(self, old_name, new_name):
         if self.content.getLocalTag() in ["IL", "ST"]:
             self.content.updateElementName(old_name, new_name)
@@ -1753,7 +1753,7 @@
 
 def setx(self, x):
     self.position.setx(x)
-    
+
 def sety(self, y):
     self.position.sety(y)
 
@@ -1828,7 +1828,7 @@
 def _translate(self, dx, dy):
     self.setx(self.getx() + dx)
     self.sety(self.gety() + dy)
-    
+
 def _translateConnections(connectionPointIn, dx, dy):
     connections = connectionPointIn.getconnections()
     if connections is not None:
@@ -1892,11 +1892,11 @@
     def setcontentText(self, text):
         self.content.setanyText(text)
     setattr(cls, "setcontentText", setcontentText)
-        
+
     def getcontentText(self):
         return self.content.getanyText()
     setattr(cls, "getcontentText", getcontentText)
-    
+
     def updateElementName(self, old_name, new_name):
         self.content.updateElementName(old_name, new_name)
     setattr(cls, "updateElementName", updateElementName)
@@ -2004,7 +2004,7 @@
             condition.setcontent(PLCOpenParser.CreateElement("ST", "inline"))
             condition.settext(value)
     setattr(cls, "setconditionContent", setconditionContent)
-        
+
     def getconditionContent(self):
         if self.condition is not None:
             content = self.condition.getcontent()
@@ -2035,21 +2035,21 @@
             bbox.union(_getConnectionsBoundingBox(condition_connection))
         return bbox
     setattr(cls, "getBoundingBox", getBoundingBox)
-    
+
     def translate(self, dx, dy):
         _translateSingle(self, dx, dy)
         condition_connection = self.getconditionConnection()
         if condition_connection is not None:
             _translateConnections(condition_connection, dx, dy)
     setattr(cls, "translate", translate)
-    
+
     def filterConnections(self, connections):
         _filterConnectionsSingle(self, connections)
         condition_connection = self.getconditionConnection()
         if condition_connection is not None:
             _filterConnections(condition_connection, self.localId, connections)
     setattr(cls, "filterConnections", filterConnections)
-    
+
     def updateConnectionsId(self, translation):
         connections_end = []
         if self.connectionPointIn is not None:
@@ -2087,7 +2087,7 @@
             return condition_connection.getconnections()
         return None
     setattr(cls, "getconnections", getconnections)
-    
+
     def Search(self, criteria, parent_infos=[]):
         parent_infos = parent_infos + ["transition", self.getlocalId()]
         search_result = []
@@ -2104,7 +2104,7 @@
 _initElementClass("selectionConvergence", "sfcObjects", "multiple")
 _initElementClass("simultaneousDivergence", "sfcObjects", "single")
 _initElementClass("simultaneousConvergence", "sfcObjects", "multiple")
-    
+
 cls = _initElementClass("jumpStep", "sfcObjects", "single")
 if cls:
     def Search(self, criteria, parent_infos):
@@ -2117,7 +2117,7 @@
         if self.reference is not None:
             self.reference.setname(name)
     setattr(cls, "setreferenceName", setreferenceName)
-    
+
     def getreferenceName(self):
         if self.reference is not None:
             return self.reference.getname()
@@ -2129,7 +2129,7 @@
             self.inline.setcontent(PLCOpenParser.CreateElement("ST", "inline"))
             self.inline.settext(content)
     setattr(cls, "setinlineContent", setinlineContent)
-    
+
     def getinlineContent(self):
         if self.inline is not None:
             return self.inline.gettext()
@@ -2155,7 +2155,7 @@
         if qualifier is None:
             qualifier = "N"
         return _Search([("inline", self.getinlineContent()),
-                        ("reference", self.getreferenceName()), 
+                        ("reference", self.getreferenceName()),
                         ("qualifier", qualifier),
                         ("duration", self.getduration()),
                         ("indicator", self.getindicator())],
@@ -2318,33 +2318,33 @@
     def removeconnections(self):
         self.content = None
     setattr(cls, "removeconnections", removeconnections)
-    
+
     connection_xpath = PLCOpen_XPath("ppx:connection")
     connection_by_position_xpath = PLCOpen_XPath("ppx:connection[position()=$pos]")
     def getconnections(self):
         return connection_xpath(self)
     setattr(cls, "getconnections", getconnections)
-    
+
     def getconnection(self, idx):
         connection = connection_by_position_xpath(self, pos=idx+1)
         if len(connection) > 0:
             return connection[0]
         return None
     setattr(cls, "getconnection", getconnection)
-    
+
     def setconnectionId(self, idx, local_id):
         connection = self.getconnection(idx)
         if connection is not None:
             connection.setrefLocalId(local_id)
     setattr(cls, "setconnectionId", setconnectionId)
-    
+
     def getconnectionId(self, idx):
         connection = self.getconnection(idx)
         if connection is not None:
             return connection.getrefLocalId()
         return None
     setattr(cls, "getconnectionId", getconnectionId)
-    
+
     def setconnectionPoints(self, idx, points):
         connection = self.getconnection(idx)
         if connection is not None:
@@ -2363,7 +2363,7 @@
         if connection is not None:
             connection.setformalParameter(parameter)
     setattr(cls, "setconnectionParameter", setconnectionParameter)
-    
+
     def getconnectionParameter(self, idx):
         connection = self.getconnection(idx)
         if connection is not None:
@@ -2398,7 +2398,7 @@
         content.setvalue(value)
         self.setcontent(content)
     setattr(cls, "setvalue", setvalue)
-    
+
     def getvalue(self):
         return self.content.getvalue()
     setattr(cls, "getvalue", getvalue)
@@ -2420,7 +2420,7 @@
 cls = PLCOpenParser.GetElementClass("arrayValue", "value")
 if cls:
     arrayValue_model = re.compile("([0-9]+)\((.*)\)$")
-    
+
     def setvalue(self, value):
         elements = []
         for item in extractValues(value[1:-1]):
@@ -2436,7 +2436,7 @@
             elements.append(element)
         self.value = elements
     setattr(cls, "setvalue", setvalue)
-    
+
     def getvalue(self):
         values = []
         for element in self.value:
@@ -2457,7 +2457,7 @@
 cls = PLCOpenParser.GetElementClass("structValue", "value")
 if cls:
     structValue_model = re.compile("(.*):=(.*)")
-    
+
     def setvalue(self, value):
         elements = []
         for item in extractValues(value[1:-1]):
@@ -2470,11 +2470,10 @@
                 elements.append(element)
         self.value = elements
     setattr(cls, "setvalue", setvalue)
-    
+
     def getvalue(self):
         values = []
         for element in self.value:
             values.append("%s := %s"%(element.getmember(), element.getvalue()))
         return "(%s)"%", ".join(values)
     setattr(cls, "getvalue", getvalue)
-