plcopen/plcopen.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Thu, 28 Sep 2017 12:20:40 +0300
changeset 1831 56b48961cc68
parent 1780 c52d1460cea8
child 1832 0f1081928d65
permissions -rw-r--r--
fix (old-style-class) Old-style class defined error for most parts of
the code

only PyJS code is left, because it does some fancy tricks and can't be
easily fixed. So far PyJS doesn't support Python3 anyway.
#!/usr/bin/env python
# -*- coding: utf-8 -*-

# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
# Copyright (C) 2017: Andrey Skvortsov
#
# See COPYING file for copyrights details.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

from xmlclass import *
from types import *
import os
import re
from lxml import etree
from collections import OrderedDict
import util.paths as paths

"""
Dictionary that makes the relation between var names in plcopen and displayed values
"""
VarTypes = {
    "Local":    "localVars",
    "Temp":     "tempVars",
    "Input":    "inputVars",
    "Output":   "outputVars",
    "InOut":    "inOutVars",
    "External": "externalVars",
    "Global":   "globalVars",
    "Access":   "accessVars"
}

searchResultVarTypes = {
    "inputVars":  "var_input",
    "outputVars": "var_output",
    "inOutVars":  "var_inout"
}

"""
Define in which order var types must be displayed
"""
VarOrder = ["Local", "Temp", "Input", "Output", "InOut", "External", "Global", "Access"]

"""
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),
    ("P1", False), ("SD", True), ("DS", True), ("SL", True)])


FILTER_ADDRESS_MODEL = "(%%[IQM](?:[XBWDL])?)(%s)((?:\.[0-9]+)*)"


def update_address(address, address_model, new_leading):
    result = address_model.match(address)
    if result is None:
        return address
    groups = result.groups()
    return groups[0] + new_leading + groups[2]


def _init_and_compare(function, v1, v2):
    if v1 is None:
        return v2
    if v2 is not None:
        return function(v1, v2)
    return v1


class rect(object):
    """
    Helper class for bounding_box calculation
    """

    def __init__(self, x=None, y=None, width=None, height=None):
        self.x_min = x
        self.x_max = None
        self.y_min = y
        self.y_max = None
        if width is not None and x is not None:
            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:
            width = self.x_max - self.x_min
        if self.y_min is not None and self.y_max is not None:
            height = self.y_max - self.y_min
        return self.x_min, self.y_min, width, height


def TextLenInRowColumn(text):
    if text == "":
        return (0, 0)
    lines = text.split("\n")
    return len(lines) - 1, len(lines[-1])


def CompilePattern(criteria):
    flag = 0 if criteria["case_sensitive"] else re.IGNORECASE
    find_pattern = criteria["find_pattern"]
    if not criteria["regular_expression"]:
        find_pattern = re.escape(find_pattern)
    criteria["pattern"] = re.compile(find_pattern, flag)


def TestTextElement(text, criteria):
    lines = text.splitlines()
    test_result = []
    result = criteria["pattern"].search(text)
    while result is not None:
        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])))
        result = criteria["pattern"].search(text, result.end())
        if result is not None and prev_pos == result.endpos:
            break
    return test_result


def TextMatched(str1, str2):
    return str1 and str2 and (str1.upper() == str2.upper())


PLCOpenParser = GenerateParserFromXSD(paths.AbsNeighbourFile(__file__, "tc6_xml_v201.xsd"))


def PLCOpen_XPath(xpath):
    return 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"
         xmlns="http://www.plcopen.org/xml/tc6_0201">
  <fileHeader companyName="" productName="" productVersion=""
              creationDateTime="1970-01-01T00:00:00"/>
  <contentHeader name="paste_project">
    <coordinateInfo>
      <fbd><scaling x="0" y="0"/></fbd>
      <ld><scaling x="0" y="0"/></ld>
      <sfc><scaling x="0" y="0"/></sfc>
    </coordinateInfo>
  </contentHeader>
  <types>
    <dataTypes/>
    <pous>%s</pous>
  </types>
  <instances>
    <configurations/>
  </instances>
</project>
"""


def LOAD_POU_INSTANCES_PROJECT_TEMPLATE(body_type):
    return LOAD_POU_PROJECT_TEMPLATE % """
<pou name="paste_pou" pouType="program">
  <body>
    <%(body_type)s>%%s</%(body_type)s>
  </body>
</pou>""" % locals()


PLCOpen_v1_file = open(paths.AbsNeighbourFile(__file__, "TC6_XML_V10_B.xsd"))
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")
PLCOpen_v1_xsd = etree.XMLSchema(etree.fromstring(PLCOpen_v1_xml))

# XPath for file compatibility process
ProjectResourcesXPath = PLCOpen_XPath("ppx:instances/ppx:configurations/ppx:configuration/ppx:resource")
ResourceInstancesXpath = PLCOpen_XPath("ppx:pouInstance | ppx:task/ppx:pouInstance")
TransitionsConditionXPath = PLCOpen_XPath("ppx:types/ppx:pous/ppx:pou/ppx:body/*/ppx:transition/ppx:condition")
ConditionConnectionsXPath = PLCOpen_XPath("ppx:connection")
ActionBlocksXPath = PLCOpen_XPath("ppx:types/ppx:pous/ppx:pou/ppx:body/*/ppx:actionBlock")
ActionBlocksConnectionPointOutXPath = PLCOpen_XPath("ppx:connectionPointOut")


def LoadProjectXML(project_xml):
    project_xml = project_xml.replace(
        "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():
                    interval = task.get("interval")
                    if interval is not None:
                        result = time_model.match(interval)
                        if result is not None:
                            values = result.groups()
                            time_values = [int(v) for v in values[:2]]
                            seconds = float(values[2])
                            time_values.extend([int(seconds), int((seconds % 1) * 1000000)])
                            text = "T#"
                            if time_values[0] != 0:
                                text += "%dh" % time_values[0]
                            if time_values[1] != 0:
                                text += "%dm" % time_values[1]
                            if time_values[2] != 0:
                                text += "%ds" % time_values[2]
                            if time_values[3] != 0:
                                if time_values[3] % 1000 != 0:
                                    text += "%.3fms" % (float(time_values[3]) / 1000)
                                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)
                if len(connections) > 0:
                    connectionPointIn = PLCOpenParser.CreateElement("connectionPointIn", "condition")
                    transition_condition.setcontent(connectionPointIn)
                    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


def LoadProject(filepath):
    project_file = open(filepath)
    project_xml = project_file.read()
    project_file.close()
    return LoadProjectXML(project_xml)


project_pou_xpath = PLCOpen_XPath("/ppx:project/ppx:types/ppx:pous/ppx:pou")


def LoadPou(xml_string):
    root, error = LoadProjectXML(LOAD_POU_PROJECT_TEMPLATE % xml_string)
    return project_pou_xpath(root)[0], error


project_pou_instances_xpath = {
    body_type: PLCOpen_XPath(
        "/ppx:project/ppx:types/ppx:pous/ppx:pou[@name='paste_pou']/ppx:body/ppx:%s/*" % body_type)
    for body_type in ["FBD", "LD", "SFC"]}


def LoadPouInstances(xml_string, body_type):
    root, error = LoadProjectXML(
        LOAD_POU_INSTANCES_PROJECT_TEMPLATE(body_type) % xml_string)
    return project_pou_instances_xpath[body_type](root), error


def SaveProject(project, filepath):
    project_file = open(filepath, 'w')
    project_file.write(etree.tostring(
        project,
        pretty_print=True,
        xml_declaration=True,
        encoding='utf-8'))
    project_file.close()


cls = PLCOpenParser.GetElementClass("formattedText")
if cls:
    def updateElementName(self, old_name, new_name):
        text = self.getanyText()
        pattern = re.compile('\\b' + old_name + '\\b', re.IGNORECASE)
        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
        result = address_model.search(text, startpos)
        while result is not None:
            groups = result.groups()
            new_address = groups[0] + new_leading + groups[2]
            text = text[:result.start()] + new_address + text[result.end():]
            startpos = result.start() + len(new_address)
            result = address_model.search(text, startpos)
        self.setanyText(text)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def hasblock(self, block_type):
        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 {
            attr: value if value is not None else ""
            for attr, value in [
                ("companyName", fileheader_obj.getcompanyName()),
                ("companyURL", fileheader_obj.getcompanyURL()),
                ("productName", fileheader_obj.getproductName()),
                ("productVersion", fileheader_obj.getproductVersion()),
                ("productRelease", fileheader_obj.getproductRelease()),
                ("creationDateTime", fileheader_obj.getcreationDateTime()),
                ("contentDescription", fileheader_obj.getcontentDescription())]
        }
    setattr(cls, "getfileHeader", getfileHeader)

    def setfileHeader(self, fileheader):
        fileheader_obj = self.fileHeader
        for attr in ["companyName", "companyURL", "productName",
                     "productVersion", "productRelease", "creationDateTime",
                     "contentDescription"]:
            value = fileheader.get(attr)
            if value is not None:
                setattr(fileheader_obj, attr, value)
    setattr(cls, "setfileHeader", setfileHeader)

    def getcontentHeader(self):
        contentheader_obj = self.contentHeader
        contentheader = {
            attr: value if value is not None else ""
            for attr, value in [
                ("projectName", contentheader_obj.getname()),
                ("projectVersion", contentheader_obj.getversion()),
                ("modificationDateTime", contentheader_obj.getmodificationDateTime()),
                ("organization", contentheader_obj.getorganization()),
                ("authorName", contentheader_obj.getauthor()),
                ("language", contentheader_obj.getlanguage())]
        }
        contentheader["pageSize"] = self.contentHeader.getpageSize()
        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():
            func = {"projectName": contentheader_obj.setname,
                    "projectVersion": contentheader_obj.setversion,
                    "authorName": contentheader_obj.setauthor,
                    "pageSize": lambda v: contentheader_obj.setpageSize(*v),
                    "scaling": contentheader_obj.setscaling}.get(attr)
            if func is not None:
                func(value)
            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())

        def gettypeElement(self, name):
            elements = elements_xpath(self, name=name)
            if len(elements) == 1:
                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]")

    def getdataTypes(self, exclude=None):
        if exclude is not None:
            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" %
            (("[@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)

    configurations_xpath = PLCOpen_XPath(
        "ppx:instances/ppx:configurations/ppx:configuration")

    def getconfigurations(self):
        return configurations_xpath(self)
    setattr(cls, "getconfigurations", getconfigurations)

    configuration_xpath = PLCOpen_XPath(
        "ppx:instances/ppx:configurations/ppx:configuration[@name=$name]")

    def getconfiguration(self, name):
        configurations = configuration_xpath(self, name=name)
        if len(configurations) == 1:
            return configurations[0]
        return None
    setattr(cls, "getconfiguration", getconfiguration)

    def addconfiguration(self, name):
        if self.getconfiguration(name) is not None:
            raise ValueError(_("\"%s\" configuration already exists !!!") % name)
        new_configuration = PLCOpenParser.CreateElement("configuration", "configurations")
        new_configuration.setname(name)
        self.instances.configurations.appendconfiguration(new_configuration)
    setattr(cls, "addconfiguration", addconfiguration)

    def removeconfiguration(self, name):
        configuration = self.getconfiguration(name)
        if configuration is None:
            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):
        resources = resources_xpath(self, configname=config_name, name=name)
        if len(resources) == 1:
            return resources[0]
        return None
    setattr(cls, "getconfigurationResource", getconfigurationResource)

    def addconfigurationResource(self, config_name, name):
        if self.getconfigurationResource(config_name, name) is not None:
            raise ValueError(
                _("\"{a1}\" resource already exists in \"{a2}\" configuration !!!").
                format(a1=name, a2=config_name))

        configuration = self.getconfiguration(config_name)
        if configuration is not None:
            new_resource = PLCOpenParser.CreateElement("resource", "configuration")
            new_resource.setname(name)
            configuration.appendresource(new_resource)
    setattr(cls, "addconfigurationResource", addconfigurationResource)

    def removeconfigurationResource(self, config_name, name):
        configuration = self.getconfiguration(config_name)
        found = False
        if configuration is not None:
            resource = self.getconfigurationResource(config_name, name)
            if resource is not None:
                configuration.remove(resource)
                found = True
        if not found:
            raise ValueError(
                _("\"{a1}\" resource doesn't exist in \"{a2}\" configuration !!!").
                format(a1=name, a2=config_name))

    setattr(cls, "removeconfigurationResource", removeconfigurationResource)

    def updateElementName(self, old_name, new_name):
        for datatype in self.getdataTypes():
            datatype.updateElementName(old_name, new_name)
        for pou in self.getpous():
            pou.updateElementName(old_name, new_name)
        for configuration in self.getconfigurations():
            configuration.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, old_leading, new_leading):
        address_model = re.compile(FILTER_ADDRESS_MODEL % old_leading)
        for pou in self.getpous():
            pou.updateElementAddress(address_model, new_leading)
        for configuration in self.getconfigurations():
            configuration.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def removeVariableByAddress(self, address):
        for pou in self.getpous():
            pou.removeVariableByAddress(address)
        for configuration in self.getconfigurations():
            configuration.removeVariableByAddress(address)
    setattr(cls, "removeVariableByAddress", removeVariableByAddress)

    def removeVariableByFilter(self, leading):
        address_model = re.compile(FILTER_ADDRESS_MODEL % leading)
        for pou in self.getpous():
            pou.removeVariableByFilter(address_model)
        for configuration in self.getconfigurations():
            configuration.removeVariableByFilter(address_model)
    setattr(cls, "removeVariableByFilter", removeVariableByFilter)

    enumerated_values_xpath = PLCOpen_XPath(
        "ppx:types/ppx:dataTypes/ppx:dataType/ppx:baseType/ppx:enum/ppx:values/ppx:value")

    def GetEnumeratedDataTypeValues(self):
        return [value.getname() for value in enumerated_values_xpath(self)]
    setattr(cls, "GetEnumeratedDataTypeValues", GetEnumeratedDataTypeValues)

    def Search(self, criteria, parent_infos=[]):
        result = self.types.Search(criteria, parent_infos)
        for configuration in self.instances.configurations.getconfiguration():
            result.extend(configuration.Search(criteria, parent_infos))
        return result
    setattr(cls, "Search", Search)

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)

    def setscaling(self, scaling):
        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")
        scaling["LD"] = self.coordinateInfo.getscaling("LD")
        scaling["SFC"] = self.coordinateInfo.getscaling("SFC")
        return scaling
    setattr(cls, "getscaling", getscaling)

cls = PLCOpenParser.GetElementClass("coordinateInfo", "contentHeader")
if cls:
    def setpageSize(self, width, height):
        if width == 0 and height == 0:
            self.deletepageSize()
        else:
            if self.pageSize is None:
                self.addpageSize()
            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()
        return 0, 0
    setattr(cls, "getpageSize", getpageSize)

    def setscaling(self, language, x, y):
        if language == "FBD":
            self.fbd.scaling.setx(x)
            self.fbd.scaling.sety(y)
        elif language == "LD":
            self.ld.scaling.setx(x)
            self.ld.scaling.sety(y)
        elif language == "SFC":
            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()
        elif language == "LD":
            return self.ld.scaling.getx(), self.ld.scaling.gety()
        elif language == "SFC":
            return self.sfc.scaling.getx(), self.sfc.scaling.gety()
        return 0, 0
    setattr(cls, "getscaling", getscaling)


def _Search(attributes, criteria, parent_infos):
    search_result = []
    for attr, value in attributes:
        if value is not None:
            search_result.extend([(tuple(parent_infos + [attr]),) + result for result in TestTextElement(value, criteria)])
    return search_result


def _updateConfigurationResourceElementName(self, old_name, new_name):
    for varlist in self.getglobalVars():
        for var in varlist.getvariable():
            var_address = var.getaddress()
            if var_address is not None:
                if TextMatched(var_address, old_name):
                    var.setaddress(new_name)
                if TextMatched(var.getname(), old_name):
                    var.setname(new_name)


def _updateConfigurationResourceElementAddress(self, address_model, new_leading):
    for varlist in self.getglobalVars():
        for var in varlist.getvariable():
            var_address = var.getaddress()
            if var_address is not None:
                var.setaddress(update_address(var_address, address_model, new_leading))


def _removeConfigurationResourceVariableByAddress(self, address):
    for varlist in self.getglobalVars():
        variables = varlist.getvariable()
        for i in xrange(len(variables)-1, -1, -1):
            if variables[i].getaddress() == address:
                variables.remove(variables[i])


def _removeConfigurationResourceVariableByFilter(self, address_model):
    for varlist in self.getglobalVars():
        variables = varlist.getvariable()
        for i in xrange(len(variables)-1, -1, -1):
            var_address = variables[i].getaddress()
            if var_address is not None:
                result = address_model.match(var_address)
                if result is not None:
                    variables.remove(variables[i])


def _SearchInConfigurationResource(self, criteria, parent_infos=[]):
    search_result = _Search([("name", self.getname())], criteria, parent_infos)
    var_number = 0
    for varlist in self.getglobalVars():
        variable_type = searchResultVarTypes.get("globalVars", "var_local")
        variables = varlist.getvariable()
        for modifier, has_modifier in [("constant", varlist.getconstant()),
                                       ("retain", varlist.getretain()),
                                       ("non_retain", varlist.getnonretain())]:
            if has_modifier:
                for result in TestTextElement(modifier, criteria):
                    search_result.append((tuple(parent_infos + [variable_type, (var_number, var_number + len(variables)), modifier]),) + result)
                break
        for variable in variables:
            search_result.extend(variable.Search(criteria, parent_infos + [variable_type, var_number]))
            var_number += 1
    return search_result


cls = PLCOpenParser.GetElementClass("configuration", "configurations")
if cls:

    def addglobalVar(self, var_type, name, location="", description=""):
        globalvars = self.getglobalVars()
        if len(globalvars) == 0:
            globalvars.append(PLCOpenParser.CreateElement("varList"))
        var = PLCOpenParser.CreateElement("variable", "varListPlain")
        var.setname(name)
        var.settype(var_type)
        if location != "":
            var.setaddress(location)
        if description != "":
            ft = PLCOpenParser.CreateElement("documentation", "variable")
            ft.setanyText(description)
            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():
            resource.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, address_model, new_leading):
        _updateConfigurationResourceElementAddress(self, address_model, new_leading)
        for resource in self.getresource():
            resource.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    setattr(cls, "removeVariableByAddress", _removeConfigurationResourceVariableByAddress)
    setattr(cls, "removeVariableByFilter", _removeConfigurationResourceVariableByFilter)

    def Search(self, criteria, parent_infos=[]):
        search_result = []
        parent_infos = parent_infos + ["C::%s" % self.getname()]
        filter = criteria["filter"]
        if filter == "all" or "configuration" in filter:
            search_result = _SearchInConfigurationResource(self, criteria, parent_infos)
            for resource in self.getresource():
                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):
        _updateConfigurationResourceElementName(self, old_name, new_name)
        for instance in self.getpouInstance():
            instance.updateElementName(old_name, new_name)
        for task in self.gettask():
            task.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, address_model, new_leading):
        _updateConfigurationResourceElementAddress(self, address_model, new_leading)
        for task in self.gettask():
            task.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    setattr(cls, "removeVariableByAddress", _removeConfigurationResourceVariableByAddress)
    setattr(cls, "removeVariableByFilter", _removeConfigurationResourceVariableByFilter)

    def Search(self, criteria, parent_infos=[]):
        parent_infos = parent_infos[:-1] + ["R::%s::%s" % (parent_infos[-1].split("::")[1], self.getname())]
        search_result = _SearchInConfigurationResource(self, criteria, parent_infos)
        task_number = 0
        instance_number = 0
        for task in self.gettask():
            results = TestTextElement(task.getname(), criteria)
            for result in results:
                search_result.append((tuple(parent_infos + ["task", task_number, "name"]),) + result)
            search_result.extend(task.Search(criteria, parent_infos + ["task", task_number]))
            task_number += 1
            for instance in task.getpouInstance():
                search_result.extend(task.Search(criteria, parent_infos + ["instance", instance_number]))
                for result in results:
                    search_result.append((tuple(parent_infos + ["instance", instance_number, "task"]),) + result)
                instance_number += 1
        for instance in self.getpouInstance():
            search_result.extend(instance.Search(criteria, parent_infos + ["instance", instance_number]))
            instance_number += 1
        return search_result
    setattr(cls, "Search", Search)

cls = PLCOpenParser.GetElementClass("task", "resource")
if cls:
    def updateElementName(self, old_name, new_name):
        if TextMatched(self.single, old_name):
            self.single = new_name
        if TextMatched(self.interval, old_name):
            self.interval = new_name
        for instance in self.getpouInstance():
            instance.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, address_model, new_leading):
        if self.single is not None:
            self.single = update_address(self.single, address_model, new_leading)
        if self.interval is not None:
            self.interval = update_address(self.interval, address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def Search(self, criteria, parent_infos=[]):
        return _Search([("single", self.getsingle()),
                        ("interval", self.getinterval()),
                        ("priority", str(self.getpriority()))],
                       criteria, parent_infos)
    setattr(cls, "Search", Search)

cls = PLCOpenParser.GetElementClass("pouInstance")
if cls:
    def updateElementName(self, old_name, new_name):
        if TextMatched(self.typeName, old_name):
            self.typeName = new_name
    setattr(cls, "updateElementName", updateElementName)

    def Search(self, criteria, parent_infos=[]):
        return _Search([("name", self.getname()),
                        ("type", self.gettypeName())],
                       criteria, parent_infos)
    setattr(cls, "Search", Search)

cls = PLCOpenParser.GetElementClass("variable", "varListPlain")
if cls:
    def gettypeAsText(self):
        vartype_content = self.gettype().getcontent()
        vartype_content_name = vartype_content.getLocalTag()
        # Variable type is a user data type
        if vartype_content_name == "derived":
            return vartype_content.getname()
        # Variable type is a string type
        elif vartype_content_name in ["string", "wstring"]:
            return vartype_content_name.upper()
        # Variable type is an array
        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
            if base_type_name == "derived":
                basetype_name = base_type.getname()
            # 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
            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()),
                                 ("type", self.gettypeAsText()),
                                 ("location", self.getaddress())],
                                criteria, parent_infos)
        initial = self.getinitialValue()
        if initial is not None:
            search_result.extend(_Search([("initial value", initial.getvalue())], criteria, parent_infos))
        doc = self.getdocumentation()
        if doc is not None:
            search_result.extend(doc.Search(criteria, parent_infos + ["documentation"]))
        return search_result
    setattr(cls, "Search", Search)

cls = PLCOpenParser.GetElementClass("types", "project")
if cls:
    def getdataTypeElements(self):
        return self.dataTypes.getdataType()
    setattr(cls, "getdataTypeElements", getdataTypeElements)

    def getdataTypeElement(self, name):
        elements = self.dataTypes.getdataType()
        for element in elements:
            if TextMatched(element.getname(), name):
                return element
        return None
    setattr(cls, "getdataTypeElement", getdataTypeElement)

    def appenddataTypeElement(self, name):
        new_datatype = PLCOpenParser.CreateElement("dataType", "dataTypes")
        self.dataTypes.appenddataType(new_datatype)
        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():
            if TextMatched(element.getname(), name):
                self.dataTypes.remove(element)
                found = True
                break
        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:
            if TextMatched(element.getname(), name):
                return element
        return None
    setattr(cls, "getpouElement", getpouElement)

    def appendpouElement(self, name, pou_type, body_type):
        for element in self.pous.getpou():
            if TextMatched(element.getname(), name):
                raise ValueError(_("\"%s\" POU already exists !!!") % name)
        new_pou = PLCOpenParser.CreateElement("pou", "pous")
        self.pous.appendpou(new_pou)
        new_pou.setname(name)
        new_pou.setpouType(pou_type)
        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():
            if TextMatched(element.getname(), name):
                self.pous.remove(element)
                found = True
                break
        if not found:
            raise ValueError(_("\"%s\" POU doesn't exist !!!") % name)
    setattr(cls, "removepouElement", removepouElement)

    def Search(self, criteria, parent_infos=[]):
        search_result = []
        filter = criteria["filter"]
        for datatype in self.dataTypes.getdataType():
            search_result.extend(datatype.Search(criteria, parent_infos))
        for pou in self.pous.getpou():
            search_result.extend(pou.Search(criteria, parent_infos))
        return search_result
    setattr(cls, "Search", Search)


def _updateBaseTypeElementName(self, old_name, new_name):
    self.baseType.updateElementName(old_name, new_name)


cls = PLCOpenParser.GetElementClass("dataType", "dataTypes")
if cls:
    setattr(cls, "updateElementName", _updateBaseTypeElementName)

    def Search(self, criteria, parent_infos=[]):
        search_result = []
        filter = criteria["filter"]
        if filter == "all" or "datatype" in filter:
            parent_infos = parent_infos + ["D::%s" % self.getname()]
            search_result.extend(_Search([("name", self.getname())], criteria, parent_infos))
            search_result.extend(self.baseType.Search(criteria, parent_infos))
            if self.initialValue is not None:
                search_result.extend(_Search([("initial", self.initialValue.getvalue())], criteria, parent_infos))
        return search_result
    setattr(cls, "Search", Search)

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"]:
            self.content.updateElementName(old_name, new_name)
        elif content_name == "struct":
            for element in self.content.getvariable():
                element_type = element.type.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def Search(self, criteria, parent_infos=[]):
        search_result = []
        content_name = self.content.getLocalTag()
        if content_name in ["derived", "array", "enum", "subrangeSigned", "subrangeUnsigned"]:
            search_result.extend(self.content.Search(criteria, parent_infos + ["base"]))
        elif content_name == "struct":
            for i, element in enumerate(self.content.getvariable()):
                search_result.extend(element.Search(criteria, parent_infos + ["struct", i]))
        else:
            if content_name in ["string", "wstring"]:
                content_name = content_name.upper()
            search_result.extend(_Search([("base", content_name)], criteria, parent_infos))
        return search_result
    setattr(cls, "Search", Search)

cls = PLCOpenParser.GetElementClass("derived", "dataType")
if cls:
    def updateElementName(self, old_name, new_name):
        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)

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()):
            search_result.extend(_Search([("lower", dimension.getlower()),
                                          ("upper", dimension.getupper())],
                                         criteria, parent_infos + ["range", i]))
        return search_result
    setattr(cls, "Search", Search)


def _SearchInSubrange(self, criteria, parent_infos=[]):
    search_result = self.baseType.Search(criteria, parent_infos)
    search_result.extend(_Search([("lower", self.range.getlower()),
                                  ("upper", self.range.getupper())],
                                 criteria, parent_infos))
    return search_result


cls = PLCOpenParser.GetElementClass("subrangeSigned", "dataType")
if cls:
    setattr(cls, "updateElementName", _updateBaseTypeElementName)
    setattr(cls, "Search", _SearchInSubrange)

cls = PLCOpenParser.GetElementClass("subrangeUnsigned", "dataType")
if cls:
    setattr(cls, "updateElementName", _updateBaseTypeElementName)
    setattr(cls, "Search", _SearchInSubrange)

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 = []
        for i, value in enumerate(enumerated_datatype_values_xpath(self)):
            for result in TestTextElement(value.getname(), criteria):
                search_result.append((tuple(parent_infos + ["value", i]),) + result)
        return search_result
    setattr(cls, "Search", Search)


def _getvariableTypeinfos(variable_type):
    type_content = variable_type.getcontent()
    type_content_type = type_content.getLocalTag()
    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):
        block_infos = {
            "name": self.getname(),
            "type": self.getpouType(),
            "extensible": False,
            "inputs": [],
            "outputs": [],
            "comment": self.getdescription()}
        if self.interface is not None:
            return_type = self.interface.getreturnType()
            if return_type is not None:
                block_infos["outputs"].append(
                    ("OUT", _getvariableTypeinfos(return_type), "none"))
            block_infos["inputs"].extend(
                [(var.getname(), _getvariableTypeinfos(var.type), "none")
                 for var in block_inputs_xpath(self)])
            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])
                                            for input in block_infos["inputs"]]),
                                 ", ".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:
            doc = PLCOpenParser.CreateElement("documentation", "pou")
            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"]:
                self.body[0].setcontent(PLCOpenParser.CreateElement(body_type, "body"))
            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()
        return ""
    setattr(cls, "gettext", gettext)

    def getvars(self):
        vars = []
        if self.interface is not None:
            reverse_types = {}
            for name, value in VarTypes.items():
                reverse_types[value] = name
            for varlist in self.interface.getcontent():
                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")
        content = self.interface.getcontent()
        if len(content) == 0:
            varlist = PLCOpenParser.CreateElement(var_class, "interface")
            self.interface.setcontent([varlist])
        elif content[-1].getLocalTag() != var_class:
            varlist = PLCOpenParser.CreateElement(var_class, "interface")
            content[-1].addnext(varlist)
        else:
            varlist = content[-1]
            variables = varlist.getvariable()
            if varlist.getconstant() or varlist.getretain() or len(variables) > 0 and variables[0].getaddress():
                varlist = PLCOpenParser.CreateElement(var_class, "interface")
                content[-1].addnext(varlist)
        var = PLCOpenParser.CreateElement("variable", "varListPlain")
        var.setname(name)
        var.settype(var_type)
        if location != "":
            var.setaddress(location)
        if description != "":
            ft = PLCOpenParser.CreateElement("documentation", "variable")
            ft.setanyText(description)
            var.setdocumentation(ft)
        if initval != "":
            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()
            for varlist in content:
                variables = varlist.getvariable()
                for var in variables:
                    if TextMatched(var.getname(), old_name):
                        vartype_content = var.gettype().getcontent()
                        if vartype_content.getLocalTag() == "derived" and TextMatched(vartype_content.getname(), old_type):
                            var.setname(new_name)
                            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()
            for varlist in content:
                for var in varlist.getvariable():
                    if TextMatched(var.getname(), name):
                        vartype_content = var.gettype().getcontent()
                        if vartype_content.getLocalTag() == "derived" and TextMatched(vartype_content.getname(), var_type):
                            varlist.remove(var)
                            if len(varlist.getvariable()) == 0:
                                self.interface.remove(varlist)
                            break
    setattr(cls, "removepouVar", removepouVar)

    def hasstep(self, name=None):
        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 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 (TextMatched(instance.getinstanceName(), name) or
                        TextMatched(instance.gettypeName(), block_type)):
                    return True
            if self.transitions:
                for transition in self.transitions.gettransition():
                    result = transition.hasblock(name, block_type)
                    if result:
                        return result
            if self.actions:
                for action in self.actions.getaction():
                    result = action.hasblock(name, block_type)
                    if result:
                        return result
        elif block_type is not None and len(self.body) > 0:
            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()
            self.transitions.settransition([])
        transition = PLCOpenParser.CreateElement("transition", "transitions")
        self.transitions.appendtransition(transition)
        transition.setname(name)
        transition.setbodyType(body_type)
        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():
                if TextMatched(transition.getname(), name):
                    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
            for transition in self.transitions.gettransition():
                if TextMatched(transition.getname(), name):
                    if transition.getbodyType() in ["FBD", "LD", "SFC"]:
                        for instance in transition.getinstances():
                            if isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")):
                                self.removepouVar(instance.gettypeName(),
                                                  instance.getinstanceName())
                    self.transitions.remove(transition)
                    removed = True
                    break
            if not removed:
                raise ValueError(_("Transition with name %s doesn't exist!") % name)
    setattr(cls, "removetransition", removetransition)

    def addaction(self, name, body_type):
        if self.actions is None:
            self.addactions()
            self.actions.setaction([])
        action = PLCOpenParser.CreateElement("action", "actions")
        self.actions.appendaction(action)
        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():
                if TextMatched(action.getname(), name):
                    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
            for action in self.actions.getaction():
                if TextMatched(action.getname(), name):
                    if action.getbodyType() in ["FBD", "LD", "SFC"]:
                        for instance in action.getinstances():
                            if isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")):
                                self.removepouVar(instance.gettypeName(),
                                                  instance.getinstanceName())
                    self.actions.remove(action)
                    removed = True
                    break
            if not removed:
                raise ValueError(_("Action with name %s doesn't exist!") % name)
    setattr(cls, "removeaction", removeaction)

    def updateElementName(self, old_name, new_name):
        if self.interface is not None:
            for content in self.interface.getcontent():
                for var in content.getvariable():
                    var_address = var.getaddress()
                    if var_address is not None:
                        if TextMatched(var_address, old_name):
                            var.setaddress(new_name)
                        if TextMatched(var.getname(), old_name):
                            var.setname(new_name)
                    var_type_content = var.gettype().getcontent()
                    if var_type_content.getLocalTag() == "derived":
                        if TextMatched(var_type_content.getname(), old_name):
                            var_type_content.setname(new_name)
        self.body[0].updateElementName(old_name, new_name)
        for action in self.getactionList():
            action.updateElementName(old_name, new_name)
        for transition in self.gettransitionList():
            transition.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, address_model, new_leading):
        if self.interface is not None:
            for content in self.interface.getcontent():
                for var in content.getvariable():
                    var_address = var.getaddress()
                    if var_address is not None:
                        var.setaddress(update_address(var_address, address_model, new_leading))
        self.body[0].updateElementAddress(address_model, new_leading)
        for action in self.getactionList():
            action.updateElementAddress(address_model, new_leading)
        for transition in self.gettransitionList():
            transition.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def removeVariableByAddress(self, address):
        if self.interface is not None:
            for content in self.interface.getcontent():
                for variable in content.getvariable():
                    if TextMatched(variable.getaddress(), address):
                        content.remove(variable)
    setattr(cls, "removeVariableByAddress", removeVariableByAddress)

    def removeVariableByFilter(self, address_model):
        if self.interface is not None:
            for content in self.interface.getcontent():
                for variable in content.getvariable():
                    var_address = variable.getaddress()
                    if var_address is not None:
                        result = address_model.match(var_address)
                        if result is not None:
                            content.remove(variable)
    setattr(cls, "removeVariableByFilter", removeVariableByFilter)

    def Search(self, criteria, parent_infos=[]):
        search_result = []
        filter = criteria["filter"]
        if filter == "all" or self.getpouType() in filter:
            if parent_infos == []:
                parent_infos = parent_infos + ["P::%s" % self.getname()]
            search_result.extend(_Search([("name", self.getname())], criteria, parent_infos))
            if self.interface is not None:
                var_number = 0
                for content in self.interface.getcontent():
                    variable_type = searchResultVarTypes.get(content, "var_local")
                    variables = content.getvariable()
                    for modifier, has_modifier in [("constant", content.getconstant()),
                                                   ("retain", content.getretain()),
                                                   ("non_retain", content.getnonretain())]:
                        if has_modifier:
                            for result in TestTextElement(modifier, criteria):
                                search_result.append((tuple(parent_infos + [variable_type, (var_number, var_number + len(variables)), modifier]),) + result)
                            break
                    for variable in variables:
                        search_result.extend(variable.Search(criteria, parent_infos + [variable_type, var_number]))
                        var_number += 1
            if len(self.body) > 0:
                search_result.extend(self.body[0].Search(criteria, parent_infos))
            for action in self.getactionList():
                search_result.extend(action.Search(criteria, parent_infos))
            for transition in self.gettransitionList():
                search_result.extend(transition.Search(criteria, parent_infos))
        return search_result
    setattr(cls, "Search", Search)


def setbodyType(self, body_type):
    if body_type in ["IL", "ST", "LD", "FBD", "SFC"]:
        self.body.setcontent(PLCOpenParser.CreateElement(body_type, "body"))
    else:
        raise ValueError("%s isn't a valid body type!" % type)


def getbodyType(self):
    return self.body.getcontent().getLocalTag()


def resetexecutionOrder(self):
    self.body.resetexecutionOrder()


def compileexecutionOrder(self):
    self.body.compileexecutionOrder()


def setelementExecutionOrder(self, instance, new_executionOrder):
    self.body.setelementExecutionOrder(instance, new_executionOrder)


def addinstance(self, instance):
    self.body.appendcontentInstance(instance)


def getinstances(self):
    return self.body.getcontentInstances()


def getinstance(self, id):
    return self.body.getcontentInstance(id)


def getrandomInstance(self, exclude):
    return self.body.getcontentRandomInstance(exclude)


def getinstanceByName(self, name):
    return self.body.getcontentInstanceByName(name)


def removeinstance(self, id):
    self.body.removecontentInstance(id)


def settext(self, text):
    self.body.settext(text)


def gettext(self):
    return self.body.gettext()


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 \
               (TextMatched(instance.getinstanceName(), name) or TextMatched(instance.gettypeName(), block_type)):
                return True
    elif block_type is not None:
        return self.body.hasblock(block_type)
    return False


def updateElementName(self, old_name, new_name):
    self.body.updateElementName(old_name, new_name)


def updateElementAddress(self, address_model, new_leading):
    self.body.updateElementAddress(address_model, new_leading)


cls = PLCOpenParser.GetElementClass("transition", "transitions")
if cls:
    setattr(cls, "setbodyType", setbodyType)
    setattr(cls, "getbodyType", getbodyType)
    setattr(cls, "resetexecutionOrder", resetexecutionOrder)
    setattr(cls, "compileexecutionOrder", compileexecutionOrder)
    setattr(cls, "setelementExecutionOrder", setelementExecutionOrder)
    setattr(cls, "addinstance", addinstance)
    setattr(cls, "getinstances", getinstances)
    setattr(cls, "getinstance", getinstance)
    setattr(cls, "getrandomInstance", getrandomInstance)
    setattr(cls, "getinstanceByName", getinstanceByName)
    setattr(cls, "removeinstance", removeinstance)
    setattr(cls, "settext", settext)
    setattr(cls, "gettext", gettext)
    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())]
        for result in TestTextElement(self.getname(), criteria):
            search_result.append((tuple(parent_infos + ["name"]),) + result)
        search_result.extend(self.body.Search(criteria, parent_infos))
        return search_result
    setattr(cls, "Search", Search)

cls = PLCOpenParser.GetElementClass("action", "actions")
if cls:
    setattr(cls, "setbodyType", setbodyType)
    setattr(cls, "getbodyType", getbodyType)
    setattr(cls, "resetexecutionOrder", resetexecutionOrder)
    setattr(cls, "compileexecutionOrder", compileexecutionOrder)
    setattr(cls, "setelementExecutionOrder", setelementExecutionOrder)
    setattr(cls, "addinstance", addinstance)
    setattr(cls, "getinstances", getinstances)
    setattr(cls, "getinstance", getinstance)
    setattr(cls, "getrandomInstance", getrandomInstance)
    setattr(cls, "getinstanceByName", getinstanceByName)
    setattr(cls, "removeinstance", removeinstance)
    setattr(cls, "settext", settext)
    setattr(cls, "gettext", gettext)
    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())]
        for result in TestTextElement(self.getname(), criteria):
            search_result.append((tuple(parent_infos + ["name"]),) + result)
        search_result.extend(self.body.Search(criteria, parent_infos))
        return search_result
    setattr(cls, "Search", Search)

cls = PLCOpenParser.GetElementClass("body")
if cls:
    cls.currentExecutionOrderId = 0
    cls.checkedBlocksDict = {}

    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"),
                                            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()
            self.resetcurrentExecutionOrderId()
            for element in self.content.getcontent():
                if isinstance(element, PLCOpenParser.GetElementClass("outVariable", "fbdObjects")) and element.getexecutionOrderId() == 0:
                    connections = element.connectionPointIn.getconnections()
                    if connections and len(connections) == 1:
                        self.compileelementExecutionOrder(connections[0])
                    element.setexecutionOrderId(self.getnewExecutionOrderId())
        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()
            instance = self.getcontentInstance(localid)
            self.checkedBlocksDict[localid] = True
            if isinstance(instance, PLCOpenParser.GetElementClass("block", "fbdObjects")) and instance.getexecutionOrderId() == 0:
                for variable in instance.inputVariables.getvariable():
                    connections = variable.connectionPointIn.getconnections()
                    if connections and len(connections) == 1:
                        if not connections[0].getrefLocalId() in self.checkedBlocksDict:
                            self.compileelementExecutionOrder(connections[0])
                if instance.getexecutionOrderId() == 0:
                    instance.setexecutionOrderId(self.getnewExecutionOrderId())
            elif isinstance(instance, PLCOpenParser.GetElementClass("continuation", "commonObjects")) and instance.getexecutionOrderId() == 0:
                for tmp_instance in self.getcontentInstances():
                    if isinstance(tmp_instance, PLCOpenParser.GetElementClass("connector", "commonObjects")) and \
                       TextMatched(tmp_instance.getname(), instance.getname()) and \
                       tmp_instance.getexecutionOrderId() == 0:
                        connections = tmp_instance.connectionPointIn.getconnections()
                        if connections and len(connections) == 1:
                            self.compileelementExecutionOrder(connections[0])
        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()
            if old_executionOrder is not None and old_executionOrder != 0 and new_executionOrder != 0:
                for element in self.content.getcontent():
                    if element != instance and not isinstance(element, PLCOpenParser.GetElementClass("comment", "commonObjects")):
                        element_executionOrder = element.getexecutionOrderId()
                        if old_executionOrder <= element_executionOrder <= new_executionOrder:
                            element.setexecutionOrderId(element_executionOrder - 1)
                        if new_executionOrder <= element_executionOrder <= old_executionOrder:
                            element.setexecutionOrderId(element_executionOrder + 1)
            instance.setexecutionOrderId(new_executionOrder)
        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):
        if self.content.getLocalTag() in ["LD", "FBD", "SFC"]:
            instance = instance_by_id_xpath(self.content, localId=local_id)
            if len(instance) > 0:
                return instance[0]
            return None
        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)
                                for instance in self.content])
        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)
            if len(instance) > 0:
                return instance[0]
            return None
        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)
            if len(instance) > 0:
                self.content.remove(instance[0])
            else:
                raise ValueError(_("Instance with id %d doesn't exist!") % id)
        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)
        else:
            raise TypeError(_("%s body don't have text!") % self.content.getLocalTag())
    setattr(cls, "settext", settext)

    def gettext(self):
        if self.content.getLocalTag() in ["IL", "ST"]:
            return self.content.getanyText()
        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)
        else:
            for element in self.content.getcontent():
                element.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, address_model, new_leading):
        if self.content.getLocalTag() in ["IL", "ST"]:
            self.content.updateElementAddress(address_model, new_leading)
        else:
            for element in self.content.getcontent():
                element.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def Search(self, criteria, parent_infos=[]):
        if self.content.getLocalTag() in ["IL", "ST"]:
            search_result = self.content.Search(criteria, parent_infos + ["body", 0])
        else:
            search_result = []
            for element in self.content.getcontent():
                search_result.extend(element.Search(criteria, parent_infos))
        return search_result
    setattr(cls, "Search", Search)


def getx(self):
    return self.position.getx()


def gety(self):
    return self.position.gety()


def setx(self, x):
    self.position.setx(x)


def sety(self, y):
    self.position.sety(y)


def _getBoundingBox(self):
    return rect(self.getx(), self.gety(), self.getwidth(), self.getheight())


def _getConnectionsBoundingBox(connectionPointIn):
    bbox = rect()
    connections = connectionPointIn.getconnections()
    if connections is not None:
        for connection in connections:
            for x, y in connection.getpoints():
                bbox.update(x, y)
    return bbox


def _getBoundingBoxSingle(self):
    bbox = _getBoundingBox(self)
    if self.connectionPointIn is not None:
        bbox.union(_getConnectionsBoundingBox(self.connectionPointIn))
    return bbox


def _getBoundingBoxMultiple(self):
    bbox = _getBoundingBox(self)
    for connectionPointIn in self.getconnectionPointIn():
        bbox.union(_getConnectionsBoundingBox(connectionPointIn))
    return bbox


def _filterConnections(connectionPointIn, localId, connections):
    in_connections = connectionPointIn.getconnections()
    if in_connections is not None:
        for connection in in_connections:
            connected = connection.getrefLocalId()
            if not (localId, connected) in connections and \
               not (connected, localId) in connections:
                connectionPointIn.remove(connection)


def _filterConnectionsSingle(self, connections):
    if self.connectionPointIn is not None:
        _filterConnections(self.connectionPointIn, self.localId, connections)


def _filterConnectionsMultiple(self, connections):
    for connectionPointIn in self.getconnectionPointIn():
        _filterConnections(connectionPointIn, self.localId, connections)


def _getconnectionsdefinition(instance, connections_end):
    local_id = instance.getlocalId()
    return dict([((local_id, end), True) for end in connections_end])


def _updateConnectionsId(connectionPointIn, translation):
    connections_end = []
    connections = connectionPointIn.getconnections()
    if connections is not None:
        for connection in connections:
            refLocalId = connection.getrefLocalId()
            new_reflocalId = translation.get(refLocalId, refLocalId)
            connection.setrefLocalId(new_reflocalId)
            connections_end.append(new_reflocalId)
    return connections_end


def _updateConnectionsIdSingle(self, translation):
    connections_end = []
    if self.connectionPointIn is not None:
        connections_end = _updateConnectionsId(self.connectionPointIn, translation)
    return _getconnectionsdefinition(self, connections_end)


def _updateConnectionsIdMultiple(self, translation):
    connections_end = []
    for connectionPointIn in self.getconnectionPointIn():
        connections_end.extend(_updateConnectionsId(connectionPointIn, translation))
    return _getconnectionsdefinition(self, connections_end)


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:
        for connection in connections:
            for position in connection.getposition():
                position.setx(position.getx() + dx)
                position.sety(position.gety() + dy)


def _translateSingle(self, dx, dy):
    _translate(self, dx, dy)
    if self.connectionPointIn is not None:
        _translateConnections(self.connectionPointIn, dx, dy)


def _translateMultiple(self, dx, dy):
    _translate(self, dx, dy)
    for connectionPointIn in self.getconnectionPointIn():
        _translateConnections(connectionPointIn, dx, dy)


def _updateElementName(self, old_name, new_name):
    pass


def _updateElementAddress(self, address_model, new_leading):
    pass


def _SearchInElement(self, criteria, parent_infos=[]):
    return []


_connectionsFunctions = {
    "bbox": {"none": _getBoundingBox,
             "single": _getBoundingBoxSingle,
             "multiple": _getBoundingBoxMultiple},
    "translate": {"none": _translate,
                  "single": _translateSingle,
                  "multiple": _translateMultiple},
    "filter": {"none": lambda self, connections: None,
               "single": _filterConnectionsSingle,
               "multiple": _filterConnectionsMultiple},
    "update": {"none": lambda self, translation: {},
               "single": _updateConnectionsIdSingle,
               "multiple": _updateConnectionsIdMultiple},
}


def _initElementClass(name, parent, connectionPointInType="none"):
    cls = PLCOpenParser.GetElementClass(name, parent)
    if cls:
        setattr(cls, "getx", getx)
        setattr(cls, "gety", gety)
        setattr(cls, "setx", setx)
        setattr(cls, "sety", sety)
        setattr(cls, "updateElementName", _updateElementName)
        setattr(cls, "updateElementAddress", _updateElementAddress)
        setattr(cls, "getBoundingBox", _connectionsFunctions["bbox"][connectionPointInType])
        setattr(cls, "translate", _connectionsFunctions["translate"][connectionPointInType])
        setattr(cls, "filterConnections", _connectionsFunctions["filter"][connectionPointInType])
        setattr(cls, "updateConnectionsId", _connectionsFunctions["update"][connectionPointInType])
        setattr(cls, "Search", _SearchInElement)
    return cls


cls = _initElementClass("comment", "commonObjects")
if cls:
    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)

    def updateElementAddress(self, address_model, new_leading):
        self.content.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def Search(self, criteria, parent_infos=[]):
        return self.content.Search(criteria, parent_infos + ["comment", self.getlocalId(), "content"])
    setattr(cls, "Search", Search)

cls = _initElementClass("block", "fbdObjects")
if cls:
    def getBoundingBox(self):
        bbox = _getBoundingBox(self)
        for input in self.inputVariables.getvariable():
            bbox.union(_getConnectionsBoundingBox(input.connectionPointIn))
        return bbox
    setattr(cls, "getBoundingBox", getBoundingBox)

    def updateElementName(self, old_name, new_name):
        if TextMatched(self.typeName, old_name):
            self.typeName = new_name
    setattr(cls, "updateElementName", updateElementName)

    def filterConnections(self, connections):
        for input in self.inputVariables.getvariable():
            _filterConnections(input.connectionPointIn, self.localId, connections)
    setattr(cls, "filterConnections", filterConnections)

    def updateConnectionsId(self, translation):
        connections_end = []
        for input in self.inputVariables.getvariable():
            connections_end.extend(_updateConnectionsId(input.connectionPointIn, translation))
        return _getconnectionsdefinition(self, connections_end)
    setattr(cls, "updateConnectionsId", updateConnectionsId)

    def translate(self, dx, dy):
        _translate(self, dx, dy)
        for input in self.inputVariables.getvariable():
            _translateConnections(input.connectionPointIn, dx, dy)
    setattr(cls, "translate", translate)

    def Search(self, criteria, parent_infos=[]):
        parent_infos = parent_infos + ["block", self.getlocalId()]
        search_result = _Search([("name", self.getinstanceName()),
                                 ("type", self.gettypeName())],
                                criteria, parent_infos)
        for i, variable in enumerate(self.inputVariables.getvariable()):
            for result in TestTextElement(variable.getformalParameter(), criteria):
                search_result.append((tuple(parent_infos + ["input", i]),) + result)
        for i, variable in enumerate(self.outputVariables.getvariable()):
            for result in TestTextElement(variable.getformalParameter(), criteria):
                search_result.append((tuple(parent_infos + ["output", i]),) + result)
        return search_result
    setattr(cls, "Search", Search)

_initElementClass("leftPowerRail", "ldObjects")
_initElementClass("rightPowerRail", "ldObjects", "multiple")


def _UpdateLDElementName(self, old_name, new_name):
    if TextMatched(self.variable, old_name):
        self.variable = new_name


def _UpdateLDElementAddress(self, address_model, new_leading):
    self.variable = update_address(self.variable, address_model, new_leading)


def _getSearchInLDElement(ld_element_type):
    def SearchInLDElement(self, criteria, parent_infos=[]):
        return _Search([("reference", self.variable)], criteria, parent_infos + [ld_element_type, self.getlocalId()])
    return SearchInLDElement


cls = _initElementClass("contact", "ldObjects", "single")
if cls:
    setattr(cls, "updateElementName", _UpdateLDElementName)
    setattr(cls, "updateElementAddress", _UpdateLDElementAddress)
    setattr(cls, "Search", _getSearchInLDElement("contact"))

cls = _initElementClass("coil", "ldObjects", "single")
if cls:
    setattr(cls, "updateElementName", _UpdateLDElementName)
    setattr(cls, "updateElementAddress", _UpdateLDElementAddress)
    setattr(cls, "Search", _getSearchInLDElement("coil"))

cls = _initElementClass("step", "sfcObjects", "single")
if cls:
    def Search(self, criteria, parent_infos=[]):
        return _Search([("name", self.getname())], criteria, parent_infos + ["step", self.getlocalId()])
    setattr(cls, "Search", Search)

cls = _initElementClass("transition", "sfcObjects")
if cls:
    def setconditionContent(self, condition_type, value):
        if self.condition is None:
            self.addcondition()
        if condition_type == "connection":
            condition = PLCOpenParser.CreateElement("connectionPointIn", "condition")
        else:
            condition = PLCOpenParser.CreateElement(condition_type, "condition")
        self.condition.setcontent(condition)
        if condition_type == "reference":
            condition.setname(value)
        elif condition_type == "inline":
            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()
            values = {"type": content.getLocalTag()}
            if values["type"] == "reference":
                values["value"] = content.getname()
            elif values["type"] == "inline":
                values["value"] = content.gettext()
            elif values["type"] == "connectionPointIn":
                values["type"] = "connection"
                values["value"] = content
            return values
        return ""
    setattr(cls, "getconditionContent", getconditionContent)

    def getconditionConnection(self):
        if self.condition is not None:
            content = self.condition.getcontent()
            if content.getLocalTag() == "connectionPointIn":
                return content
        return None
    setattr(cls, "getconditionConnection", getconditionConnection)

    def getBoundingBox(self):
        bbox = _getBoundingBoxSingle(self)
        condition_connection = self.getconditionConnection()
        if condition_connection is not None:
            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:
            connections_end = _updateConnectionsId(self.connectionPointIn, translation)
        condition_connection = self.getconditionConnection()
        if condition_connection is not None:
            connections_end.extend(_updateConnectionsId(condition_connection, translation))
        return _getconnectionsdefinition(self, connections_end)
    setattr(cls, "updateConnectionsId", updateConnectionsId)

    def updateElementName(self, old_name, new_name):
        if self.condition is not None:
            content = self.condition.getcontent()
            content_name = content.getLocalTag()
            if content_name == "reference":
                if TextMatched(content.getname(), old_name):
                    content.setname(new_name)
            elif content_name == "inline":
                content.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, address_model, new_leading):
        if self.condition is not None:
            content = self.condition.getcontent()
            content_name = content.getLocalTag()
            if content_name == "reference":
                content.setname(update_address(content.getname(), address_model, new_leading))
            elif content_name == "inline":
                content.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def getconnections(self):
        condition_connection = self.getconditionConnection()
        if condition_connection is not None:
            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 = []
        content = self.condition.getcontent()
        content_name = content.getLocalTag()
        if content_name == "reference":
            search_result.extend(_Search([("reference", content.getname())], criteria, parent_infos))
        elif content_name == "inline":
            search_result.extend(content.Search(criteria, parent_infos + ["inline"]))
        return search_result
    setattr(cls, "Search", Search)

_initElementClass("selectionDivergence", "sfcObjects", "single")
_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):
        return _Search([("target", self.gettargetName())], criteria, parent_infos + ["jump", self.getlocalId()])
    setattr(cls, "Search", Search)

cls = PLCOpenParser.GetElementClass("action", "actionBlock")
if cls:
    def setreferenceName(self, name):
        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()
        return None
    setattr(cls, "getreferenceName", getreferenceName)

    def setinlineContent(self, content):
        if self.inline is not None:
            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()
        return None
    setattr(cls, "getinlineContent", getinlineContent)

    def updateElementName(self, old_name, new_name):
        if self.reference is not None and TextMatched(self.reference.getname(), old_name):
            self.reference.setname(new_name)
        if self.inline is not None:
            self.inline.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, address_model, new_leading):
        if self.reference is not None:
            self.reference.setname(update_address(self.reference.getname(), address_model, new_leading))
        if self.inline is not None:
            self.inline.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def Search(self, criteria, parent_infos=[]):
        qualifier = self.getqualifier()
        if qualifier is None:
            qualifier = "N"
        return _Search([("inline", self.getinlineContent()),
                        ("reference", self.getreferenceName()),
                        ("qualifier", qualifier),
                        ("duration", self.getduration()),
                        ("indicator", self.getindicator())],
                       criteria, parent_infos)
    setattr(cls, "Search", Search)

cls = _initElementClass("actionBlock", "commonObjects", "single")
if cls:
    def setactions(self, actions):
        self.action = []
        for params in actions:
            action = PLCOpenParser.CreateElement("action", "actionBlock")
            self.appendaction(action)
            action.setqualifier(params.qualifier)
            if params.type == "reference":
                action.addreference()
                action.setreferenceName(params.value)
            else:
                action.addinline()
                action.setinlineContent(params.value)
            if params.duration != "":
                action.setduration(params.duration)
            if params.indicator != "":
                action.setindicator(params.indicator)
    setattr(cls, "setactions", setactions)

    def getactions(self):
        actions = []
        for action in self.action:
            params = {}
            params["qualifier"] = action.getqualifier()
            if params["qualifier"] is None:
                params["qualifier"] = "N"
            if action.getreference() is not None:
                params["type"] = "reference"
                params["value"] = action.getreferenceName()
            elif action.getinline() is not None:
                params["type"] = "inline"
                params["value"] = action.getinlineContent()
            duration = action.getduration()
            if duration:
                params["duration"] = duration
            indicator = action.getindicator()
            if indicator is not None:
                params["indicator"] = indicator
            actions.append(params)
        return actions
    setattr(cls, "getactions", getactions)

    def updateElementName(self, old_name, new_name):
        for action in self.action:
            action.updateElementName(old_name, new_name)
    setattr(cls, "updateElementName", updateElementName)

    def updateElementAddress(self, address_model, new_leading):
        for action in self.action:
            action.updateElementAddress(address_model, new_leading)
    setattr(cls, "updateElementAddress", updateElementAddress)

    def Search(self, criteria, parent_infos=[]):
        parent_infos = parent_infos + ["action_block", self.getlocalId()]
        search_result = []
        for idx, action in enumerate(self.action):
            search_result.extend(action.Search(criteria, parent_infos + ["action", idx]))
        return search_result
    setattr(cls, "Search", Search)


def _SearchInIOVariable(self, criteria, parent_infos=[]):
    return _Search([("expression", self.expression)], criteria, parent_infos + ["io_variable", self.getlocalId()])


def _UpdateIOElementName(self, old_name, new_name):
    if TextMatched(self.expression, old_name):
        self.expression = new_name


def _UpdateIOElementAddress(self, address_model, new_leading):
    self.expression = update_address(self.expression, address_model, new_leading)


cls = _initElementClass("inVariable", "fbdObjects")
if cls:
    setattr(cls, "updateElementName", _UpdateIOElementName)
    setattr(cls, "updateElementAddress", _UpdateIOElementAddress)
    setattr(cls, "Search", _SearchInIOVariable)

cls = _initElementClass("outVariable", "fbdObjects", "single")
if cls:
    setattr(cls, "updateElementName", _UpdateIOElementName)
    setattr(cls, "updateElementAddress", _UpdateIOElementAddress)
    setattr(cls, "Search", _SearchInIOVariable)

cls = _initElementClass("inOutVariable", "fbdObjects", "single")
if cls:
    setattr(cls, "updateElementName", _UpdateIOElementName)
    setattr(cls, "updateElementAddress", _UpdateIOElementAddress)
    setattr(cls, "Search", _SearchInIOVariable)


def _SearchInConnector(self, criteria, parent_infos=[]):
    return _Search([("name", self.getname())], criteria, parent_infos + ["connector", self.getlocalId()])


cls = _initElementClass("continuation", "commonObjects")
if cls:
    setattr(cls, "Search", _SearchInConnector)

    def updateElementName(self, old_name, new_name):
        if TextMatched(self.name, old_name):
            self.name = new_name
    setattr(cls, "updateElementName", updateElementName)

cls = _initElementClass("connector", "commonObjects", "single")
if cls:
    setattr(cls, "Search", _SearchInConnector)

    def updateElementName(self, old_name, new_name):
        if TextMatched(self.name, old_name):
            self.name = new_name
    setattr(cls, "updateElementName", updateElementName)

cls = PLCOpenParser.GetElementClass("connection")
if cls:
    def setpoints(self, points):
        positions = []
        for point in points:
            position = PLCOpenParser.CreateElement("position", "connection")
            position.setx(point.x)
            position.sety(point.y)
            positions.append(position)
        self.position = positions
    setattr(cls, "setpoints", setpoints)

    def getpoints(self):
        points = []
        for position in self.position:
            points.append((position.getx(), position.gety()))
        return points
    setattr(cls, "getpoints", getpoints)

cls = PLCOpenParser.GetElementClass("connectionPointIn")
if cls:
    def setrelPositionXY(self, x, y):
        self.relPosition = PLCOpenParser.CreateElement("relPosition", "connectionPointIn")
        self.relPosition.setx(x)
        self.relPosition.sety(y)
    setattr(cls, "setrelPositionXY", setrelPositionXY)

    def getrelPositionXY(self):
        if self.relPosition is not None:
            return self.relPosition.getx(), self.relPosition.gety()
        return self.relPosition
    setattr(cls, "getrelPositionXY", getrelPositionXY)

    def addconnection(self):
        self.append(PLCOpenParser.CreateElement("connection", "connectionPointIn"))
    setattr(cls, "addconnection", addconnection)

    def removeconnection(self, idx):
        if len(self.content) > idx:
            self.remove(self.content[idx])
    setattr(cls, "removeconnection", removeconnection)

    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:
            connection.setpoints(points)
    setattr(cls, "setconnectionPoints", setconnectionPoints)

    def getconnectionPoints(self, idx):
        connection = self.getconnection(idx)
        if connection is not None:
            return connection.getpoints()
        return []
    setattr(cls, "getconnectionPoints", getconnectionPoints)

    def setconnectionParameter(self, idx, parameter):
        connection = self.getconnection(idx)
        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:
            return connection.getformalParameter()
        return None
    setattr(cls, "getconnectionParameter", getconnectionParameter)

cls = PLCOpenParser.GetElementClass("connectionPointOut")
if cls:
    def setrelPositionXY(self, x, y):
        self.relPosition = PLCOpenParser.CreateElement("relPosition", "connectionPointOut")
        self.relPosition.setx(x)
        self.relPosition.sety(y)
    setattr(cls, "setrelPositionXY", setrelPositionXY)

    def getrelPositionXY(self):
        if self.relPosition is not None:
            return self.relPosition.getx(), self.relPosition.gety()
        return self.relPosition
    setattr(cls, "getrelPositionXY", getrelPositionXY)

cls = PLCOpenParser.GetElementClass("value")
if cls:
    def setvalue(self, value):
        value = value.strip()
        if value.startswith("[") and value.endswith("]"):
            content = PLCOpenParser.CreateElement("arrayValue", "value")
        elif value.startswith("(") and value.endswith(")"):
            content = PLCOpenParser.CreateElement("structValue", "value")
        else:
            content = PLCOpenParser.CreateElement("simpleValue", "value")
        content.setvalue(value)
        self.setcontent(content)
    setattr(cls, "setvalue", setvalue)

    def getvalue(self):
        return self.content.getvalue()
    setattr(cls, "getvalue", getvalue)


def extractValues(values):
    items = values.split(",")
    i = 1
    while i < len(items):
        opened = items[i - 1].count("(") + items[i - 1].count("[")
        closed = items[i - 1].count(")") + items[i - 1].count("]")
        if opened > closed:
            items[i - 1] = ','.join([items[i - 1], items.pop(i)])
        elif opened == closed:
            i += 1
        else:
            raise ValueError(_("\"%s\" is an invalid value!") % value)
    return items


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]):
            item = item.strip()
            element = PLCOpenParser.CreateElement("value", "arrayValue")
            result = arrayValue_model.match(item)
            if result is not None:
                groups = result.groups()
                element.setrepetitionValue(groups[0])
                element.setvalue(groups[1].strip())
            else:
                element.setvalue(item)
            elements.append(element)
        self.value = elements
    setattr(cls, "setvalue", setvalue)

    def getvalue(self):
        values = []
        for element in self.value:
            try:
                repetition = int(element.getrepetitionValue())
            except Exception:
                repetition = 1
            if repetition > 1:
                value = element.getvalue()
                if value is None:
                    value = ""
                values.append("%s(%s)" % (repetition, value))
            else:
                values.append(element.getvalue())
        return "[%s]" % ", ".join(values)
    setattr(cls, "getvalue", getvalue)

cls = PLCOpenParser.GetElementClass("structValue", "value")
if cls:
    structValue_model = re.compile("(.*):=(.*)")

    def setvalue(self, value):
        elements = []
        for item in extractValues(value[1:-1]):
            result = structValue_model.match(item)
            if result is not None:
                groups = result.groups()
                element = PLCOpenParser.CreateElement("value", "structValue")
                element.setmember(groups[0].strip())
                element.setvalue(groups[1].strip())
                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)