lbessard@2: #!/usr/bin/env python
lbessard@2: # -*- coding: utf-8 -*-
lbessard@2: 
lbessard@2: #This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
lbessard@2: #based on the plcopen standard. 
lbessard@2: #
lbessard@2: #Copyright (C): Edouard TISSERANT and Laurent BESSARD
lbessard@2: #
lbessard@2: #See COPYING file for copyrights details.
lbessard@2: #
lbessard@2: #This library is free software; you can redistribute it and/or
lbessard@2: #modify it under the terms of the GNU General Public
lbessard@2: #License as published by the Free Software Foundation; either
lbessard@2: #version 2.1 of the License, or (at your option) any later version.
lbessard@2: #
lbessard@2: #This library is distributed in the hope that it will be useful,
lbessard@2: #but WITHOUT ANY WARRANTY; without even the implied warranty of
lbessard@2: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
lbessard@2: #Lesser General Public License for more details.
lbessard@2: #
lbessard@2: #You should have received a copy of the GNU General Public
lbessard@2: #License along with this library; if not, write to the Free Software
lbessard@2: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
lbessard@2: 
lbessard@2: from xml.dom import minidom
lbessard@2: import sys,re
lbessard@2: from types import *
lbessard@2: from datetime import *
lbessard@2: 
lbessard@2: """
lbessard@2: Time and date definitions
lbessard@2: """
lbessard@2: TimeType = time(0,0,0).__class__
lbessard@2: DateType = date(1,1,1).__class__
lbessard@2: DateTimeType = datetime(1,1,1,0,0,0).__class__
lbessard@2: 
lbessard@2: """
lbessard@2: Regular expression models for extracting dates and times from a string
lbessard@2: """
lbessard@24: time_model = re.compile('([0-9]{2}):([0-9]{2}):([0-9]{2}(?:.[0-9]*)?)')
lbessard@2: date_model = re.compile('([0-9]{4})-([0-9]{2})-([0-9]{2})')
lbessard@24: datetime_model = re.compile('([0-9]{4})-([0-9]{2})-([0-9]{2})[ T]([0-9]{2}):([0-9]{2}):([0-9]{2}(?:.[0-9]*)?)')
lbessard@2: 
lbessard@2: """
lbessard@2: Dictionaries for stocking Classes and Types created from XML
lbessard@2: """
lbessard@2: XMLClasses = {}
lbessard@2: 
lbessard@2: """
lbessard@2: This function calculates the number of whitespace for indentation
lbessard@2: """
lbessard@2: def getIndent(indent, balise):
lbessard@2:     first = indent * 2
lbessard@2:     second = first + len(balise) + 1
lbessard@2:     return "\t".expandtabs(first), "\t".expandtabs(second)
lbessard@2: 
lbessard@2: """
lbessard@2: This function opens the xsd file and generate the classes from the xml tree
lbessard@2: """
lbessard@2: def GenerateClassesFromXSD(filename):
lbessard@2:     xsdfile = open(filename, 'r')
lbessard@2:     Generate_xsd_classes(minidom.parse(xsdfile), None)
lbessard@2:     xsdfile.close()
lbessard@2: 
lbessard@2: """
lbessard@2: This function recursively creates a definition of the classes and their attributes
lbessard@2: for plcopen from the xsd file of plcopen opened in a DOM model
lbessard@2: """
lbessard@2: def Generate_xsd_classes(tree, parent, sequence = False):
lbessard@2:     attributes = {}
lbessard@2:     inheritance = []
lbessard@2:     if sequence:
lbessard@2:         order = []
lbessard@2:     # The lists of attributes and inheritance of the node are generated from the childrens 
lbessard@2:     for node in tree.childNodes:
lbessard@2:         # We make fun of #text elements and all other tags that don't are xsd tags
lbessard@2:         if node.nodeName != "#text" and node.nodeName.startswith("xsd:"):
lbessard@2:             recursion = False
lbessard@2:             name = node.nodeName[4:].encode()
lbessard@2:             
lbessard@2:             # This tags defines an attribute of the class
lbessard@2:             if name in ["element", "attribute"]:
lbessard@2:                 nodename = GetAttributeValue(node._attrs["name"])
lbessard@2:                 if "type" in node._attrs:
lbessard@2:                     nodetype = GetAttributeValue(node._attrs["type"])
lbessard@2:                     if nodetype.startswith("xsd"):
lbessard@2:                         nodetype = nodetype.replace("xsd", "bse")
lbessard@2:                     elif nodetype.startswith("ppx"):
lbessard@2:                         nodetype = nodetype.replace("ppx", "cls")
lbessard@2:                 else:
lbessard@2:                     # The type of attribute is defines in the child tree so we generate a new class
lbessard@2:                     # No name is defined so we create one from nodename and parent class name
lbessard@2:                     # (because some different nodes can have the same name)
lbessard@2:                     if parent:
lbessard@2:                         classname = "%s_%s"%(parent, nodename)
lbessard@2:                     else:
lbessard@2:                         classname = nodename
lbessard@2:                     Generate_xsd_classes(node, classname)
lbessard@2:                     nodetype = "cls:%s"%classname
lbessard@2:                 if name == "attribute":
lbessard@2:                     if "use" in node._attrs:
lbessard@2:                         use = GetAttributeValue(node._attrs["use"])
lbessard@2:                     else:
lbessard@2:                         use = "optional"
lbessard@2:                 if name == "element":
lbessard@2:                     # If a tag can be written more than one time we define a list attribute
lbessard@2:                     if "maxOccurs" in node._attrs and GetAttributeValue(node._attrs["maxOccurs"]) == "unbounded":
lbessard@2:                         nodetype = "%s[]"%nodetype
lbessard@2:                     if "minOccurs" in node._attrs and GetAttributeValue(node._attrs["minOccurs"]) == "0":
lbessard@2:                         use = "optional"
lbessard@2:                     else:
lbessard@2:                         use = "required"
lbessard@2:                 attributes[nodename] = (nodetype, name, use)
lbessard@2:                 if sequence:
lbessard@2:                     order.append(nodename)
lbessard@2:             
lbessard@2:             # This tag defines a new class
lbessard@2:             elif name == "complexType" or name == "simpleType":
lbessard@2:                 if "name" in node._attrs:
lbessard@2:                     classname = GetAttributeValue(node._attrs["name"])
lbessard@2:                     super, attrs = Generate_xsd_classes(node, classname)
lbessard@2:                 else:
lbessard@2:                     classname = parent
lbessard@2:                     super, attrs = Generate_xsd_classes(node, classname.split("_")[-1])
lbessard@2:                 # When all attributes and inheritances have been extracted, the
lbessard@2:                 # values are added in the list of classes to create
lbessard@2:                 if classname not in XMLClasses:
lbessard@2:                     XMLClasses[classname] = (super, attrs)
lbessard@2:                 elif XMLClasses[classname] != (super, attrs):
lbessard@2:                     print "A different class has already got %s for name"%classname
lbessard@2:             
lbessard@2:             # This tag defines an attribute that can have different types
lbessard@2:             elif name == "choice":
lbessard@2:                 super, attrs = Generate_xsd_classes(node, parent)
lbessard@2:                 if "ref" in attrs.keys():
lbessard@2:                     choices = attrs
lbessard@2:                 else:
lbessard@2:                     choices = {}
lbessard@2:                     for attr, (attr_type, xml_type, write_type) in attrs.items():
lbessard@2:                         choices[attr] = attr_type
lbessard@2:                 if "maxOccurs" in node._attrs and GetAttributeValue(node._attrs["maxOccurs"]) == "unbounded":
lbessard@2:                     attributes["multichoice_content"] = choices
lbessard@2:                     if sequence:
lbessard@2:                         order.append("multichoice_content")
lbessard@2:                 else:
lbessard@2:                     attributes["choice_content"] = choices
lbessard@2:                     if sequence:
lbessard@2:                         order.append("choice_content")
lbessard@2:             
lbessard@2:             # This tag defines the order in which class attributes must be written
lbessard@2:             # in plcopen xml file. We have to store this order like an attribute
lbessard@2:             elif name in "sequence":
lbessard@2:                 super, attrs, order = Generate_xsd_classes(node, parent, True)
lbessard@2:                 if "maxOccurs" in node._attrs and GetAttributeValue(node._attrs["maxOccurs"]) == "unbounded":
lbessard@2:                     for attr, (attr_type, xml_type, write_type) in attrs.items():
lbessard@2:                         attrs[attr] = ("%s[]"%attr_type, xml_type, write_type)
lbessard@2:                 if "minOccurs" in node._attrs and GetAttributeValue(node._attrs["minOccurs"]) == "0":
lbessard@2:                     for attr, (attr_type, xml_type, write_type) in attrs.items():
lbessard@2:                         attrs[attr] = (attr_type, xml_type, "optional")
lbessard@2:                 inheritance.extend(super)
lbessard@2:                 attributes.update(attrs)
lbessard@2:                 attributes["order"] = order
lbessard@2:             
lbessard@2:             # This tag defines of types
lbessard@2:             elif name == "group":
lbessard@2:                 if "name" in node._attrs:
lbessard@2:                     nodename = GetAttributeValue(node._attrs["name"])
lbessard@2:                     super, attrs = Generate_xsd_classes(node, None)
lbessard@2:                     XMLClasses[nodename] = (super, {"group":attrs["choice_content"]})
lbessard@2:                 elif "ref" in node._attrs:
lbessard@2:                     if "ref" not in attributes:
lbessard@2:                         attributes["ref"] = [GetAttributeValue(node._attrs["ref"])]
lbessard@2:                     else:
lbessard@2:                         attributes["ref"].append(GetAttributeValue(node._attrs["ref"]))
lbessard@2:             
lbessard@2:             # This tag define a base class for the node
lbessard@2:             elif name == "extension":
lbessard@2:                 super = GetAttributeValue(node._attrs["base"])
lbessard@2:                 if super.startswith("xsd"):
lbessard@2:                     super = super.replace("xsd", "bse")
lbessard@2:                 elif super.startswith("ppx"):
lbessard@2:                     super = super.replace("ppx", "cls")
lbessard@2:                 inheritance.append(super[4:])
lbessard@2:                 recursion = True
lbessard@2:                 
lbessard@2:             # This tag defines a restriction on the type of attribute
lbessard@2:             elif name == "restriction":
lbessard@2:                 basetype = GetAttributeValue(node._attrs["base"])
lbessard@2:                 if basetype.startswith("xsd"):
lbessard@2:                     basetype = basetype.replace("xsd", "bse")
lbessard@2:                 elif basetype.startswith("ppx"):
lbessard@2:                     basetype = basetype.replace("ppx", "cls")
lbessard@2:                 attributes["basetype"] = basetype
lbessard@2:                 recursion = True
lbessard@2:             
lbessard@2:             # This tag defines an enumerated type
lbessard@2:             elif name == "enumeration":
lbessard@2:                 if "enum" not in attributes:
lbessard@2:                     attributes["enum"] = [GetAttributeValue(node._attrs["value"])]
lbessard@2:                 else:
lbessard@2:                     attributes["enum"].append(GetAttributeValue(node._attrs["value"]))
lbessard@2:             
lbessard@2:             # This tags defines a restriction on a numerical value
lbessard@2:             elif name in ["minInclusive","maxInclusive"]:
lbessard@2:                 if "limit" not in attributes:
lbessard@2:                     attributes["limit"] = {}
lbessard@2:                 if name == "minInclusive":
lbessard@2:                     attributes["limit"]["min"] = eval(GetAttributeValue(node._attrs["value"]))
lbessard@2:                 elif name == "maxInclusive":
lbessard@2:                     attributes["limit"]["max"] = eval(GetAttributeValue(node._attrs["value"]))
lbessard@2:             
lbessard@2:             # This tag are not important but their childrens are. The childrens are then parsed. 
lbessard@2:             elif name in ["complexContent", "schema"]:
lbessard@2:                 recursion = True
lbessard@2:             
lbessard@2:             # We make fun of xsd documentation
lbessard@2:             elif name in ["annotation"]:
lbessard@2:                 pass
lbessard@2:             
lbessard@2:             else:
lbessard@2:                 #print name
lbessard@2:                 Generate_xsd_classes(node, parent)
lbessard@2:             
lbessard@2:             # Parse the childrens of node
lbessard@2:             if recursion:
lbessard@2:                 super, attrs = Generate_xsd_classes(node, parent)
lbessard@2:                 inheritance.extend(super)
lbessard@2:                 attributes.update(attrs)
lbessard@2:     
lbessard@2:     # if sequence tag have been found, order is returned
lbessard@2:     if sequence:
lbessard@2:         return inheritance, attributes, order
lbessard@2:     else:
lbessard@2:         return inheritance, attributes
lbessard@2: """
lbessard@2: Function that extracts data from a node
lbessard@2: """
lbessard@2: def GetAttributeValue(attr):
lbessard@2:     if len(attr.childNodes) == 1:
lbessard@2:         return attr.childNodes[0].data.encode()
lbessard@2:     else:
lbessard@2:         return ""
lbessard@2: 
lbessard@2: """
lbessard@2: Funtion that returns the Python type and default value for a given type
lbessard@2: """
lbessard@2: def GetTypeInitialValue(attr_type):
lbessard@2:     type_compute = attr_type[4:].replace("[]", "")
lbessard@2:     if attr_type.startswith("bse:"):
lbessard@2:         if type_compute == "boolean":
lbessard@2:             return BooleanType, "False"
lbessard@2:         elif type_compute in ["decimal","unsignedLong","long","integer"]:
lbessard@2:             return IntType, "0"
lbessard@2:         elif type_compute in ["string","anyURI","NMTOKEN"]:
lbessard@2:             return StringType, "\"\""
lbessard@2:         elif type_compute == "time":
lbessard@24:             return TimeType, "time(0,0,0,0)"
lbessard@2:         elif type_compute == "date":
lbessard@2:             return DateType, "date(1,1,1)"
lbessard@2:         elif type_compute == "dateTime":
lbessard@24:             return DateTimeType, "datetime(1,1,1,0,0,0,0)"
lbessard@2:         elif type_compute == "language":
lbessard@2:             return StringType, "\"en-US\""
lbessard@2:         else:
lbessard@2:             print "Can't affect: %s"%type_compute
lbessard@2:     elif attr_type.startswith("cls:"):
lbessard@2:         if type_compute in XMLClasses:
lbessard@2:             return XMLClasses[type_compute],"%s()"%type_compute
lbessard@2: 
lbessard@2: """
lbessard@2: Function that computes value from a python type (Only Boolean are critical because
lbessard@2: there is no uppercase in plcopen)
lbessard@2: """
lbessard@2: def ComputeValue(value):
lbessard@2:     if type(value) == BooleanType:
lbessard@2:         if value:
lbessard@2:             return "true"
lbessard@2:         else:
lbessard@2:             return "false"
lbessard@2:     else:
lbessard@2:         return str(value)
lbessard@2: 
lbessard@2: """
lbessard@2: Function that extracts a value from a string following the xsd type given
lbessard@2: """
lbessard@2: def GetComputedValue(attr_type, value):
lbessard@2:     type_compute = attr_type[4:].replace("[]", "")
lbessard@2:     if type_compute == "boolean":
lbessard@2:          if value == "true":
lbessard@2:              return True
lbessard@2:          elif value == "false":
lbessard@2:              return False
lbessard@2:          else:
lbessard@2:             raise ValueError, "\"%s\" is not a valid boolean!"%value
lbessard@2:     elif type_compute in ["decimal","unsignedLong","long","integer"]:
lbessard@2:         return int(value)
lbessard@2:     elif type_compute in ["string","anyURI","NMTOKEN","language"]:
lbessard@2:         return value
lbessard@2:     elif type_compute == "time":
lbessard@2:         result = time_model.match(value)
lbessard@2:         if result:
lbessard@24:             values = result.groups()
lbessard@24:             time_values = [int(v) for v in values[:2]]
lbessard@24:             seconds = float(values[2])
lbessard@24:             time_values.extend([int(seconds), int((seconds % 1) * 1000000)])
lbessard@2:             return time(*time_values)
lbessard@2:         else:
lbessard@2:             raise ValueError, "\"%s\" is not a valid time!"%value
lbessard@2:     elif type_compute == "date":
lbessard@2:         result = date_model.match(value)
lbessard@2:         if result:
lbessard@2:             date_values = [int(v) for v in result.groups()]
lbessard@2:             return date(*date_values)
lbessard@2:         else:
lbessard@2:             raise ValueError, "\"%s\" is not a valid date!"%value
lbessard@2:     elif type_compute == "dateTime":
lbessard@2:         result = datetime_model.match(value)
lbessard@2:         if result:
lbessard@24:             values = result.groups()
lbessard@24:             datetime_values = [int(v) for v in values[:5]]
lbessard@24:             seconds = float(values[5])
lbessard@24:             datetime_values.extend([int(seconds), int((seconds % 1) * 1000000)])
lbessard@2:             return datetime(*datetime_values)
lbessard@2:         else:
lbessard@2:             raise ValueError, "\"%s\" is not a valid datetime!"%value
lbessard@2:     else:
lbessard@2:         print "Can't affect: %s"%type_compute
lbessard@2:         return None
lbessard@2: 
lbessard@2: """
lbessard@2: This is the Metaclass for PLCOpen element classes. It generates automatically
lbessard@2: the basic useful methods for manipulate the differents attributes of the classes
lbessard@2: """
lbessard@2: class MetaClass(type):
lbessard@2:     
lbessard@2:     def __init__(cls, name, bases, dict, user_classes):
lbessard@2:         super(MetaClass, cls).__init__(name, bases, {})
lbessard@2:         #print name, bases, dict, "\n"
lbessard@2:         initialValues = {}
lbessard@2:         for attr, values in dict.items():
lbessard@2:             if attr in ["order", "basetype"]:
lbessard@2:                 pass
lbessard@2:             
lbessard@2:             # Class is a enumerated type
lbessard@2:             elif attr == "enum":
lbessard@2:                 value_type, initial = GetTypeInitialValue(dict["basetype"])
lbessard@2:                 initialValues["value"] = "\"%s\""%values[0]
lbessard@2:                 setattr(cls, "value", values[0])
lbessard@2:                 setattr(cls, "setValue", MetaClass.generateSetEnumMethod(cls, values, value_type))
lbessard@2:                 setattr(cls, "getValue", MetaClass.generateGetMethod(cls, "value"))
lbessard@2:             
lbessard@2:             # Class is a limited type
lbessard@2:             elif attr == "limit":
lbessard@2:                 value_type, initial = GetTypeInitialValue(dict["basetype"])
lbessard@2:                 initial = 0
lbessard@2:                 if "min" in values:
lbessard@2:                     initial = max(initial, values["min"])
lbessard@2:                 if "max" in values:
lbessard@2:                     initial = min(initial, values["max"])
lbessard@2:                 initialValues["value"] = "%d"%initial
lbessard@2:                 setattr(cls, "value", initial)
lbessard@2:                 setattr(cls, "setValue", MetaClass.generateSetLimitMethod(cls, values, value_type))
lbessard@2:                 setattr(cls, "getValue", MetaClass.generateGetMethod(cls, "value"))
lbessard@2:             
lbessard@2:             # Class has an attribute that can have different value types
lbessard@2:             elif attr == "choice_content":
lbessard@2:                 setattr(cls, "content", None)
lbessard@2:                 initialValues["content"] = "None"
lbessard@2:                 setattr(cls, "deleteContent", MetaClass.generateDeleteMethod(cls, "content"))
lbessard@2:                 setattr(cls, "setContent", MetaClass.generateSetChoiceMethod(cls, values))
lbessard@2:                 setattr(cls, "getContent", MetaClass.generateGetMethod(cls, "content"))
lbessard@2:             elif attr == "multichoice_content":
lbessard@2:                 setattr(cls, "content", [])
lbessard@2:                 initialValues["content"] = "[]"
lbessard@2:                 setattr(cls, "appendContent", MetaClass.generateAppendChoiceMethod(cls, values))
lbessard@2:                 setattr(cls, "insertContent", MetaClass.generateInsertChoiceMethod(cls, values))
lbessard@2:                 setattr(cls, "removeContent", MetaClass.generateRemoveMethod(cls, "content"))
lbessard@2:                 setattr(cls, "countContent", MetaClass.generateCountMethod(cls, "content"))
lbessard@2:                 setattr(cls, "setContent", MetaClass.generateSetMethod(cls, "content", ListType))
lbessard@2:                 setattr(cls, "getContent", MetaClass.generateGetMethod(cls, "content"))
lbessard@2:             
lbessard@2:             # It's an attribute of the class
lbessard@2:             else:
lbessard@2:                 attrname = attr[0].upper()+attr[1:]
lbessard@2:                 attr_type, xml_type, write_type = values
lbessard@2:                 value_type, initial = GetTypeInitialValue(attr_type)
lbessard@2:                 # Value of the attribute is a list
lbessard@2:                 if attr_type.endswith("[]"):
lbessard@2:                     setattr(cls, attr, [])
lbessard@2:                     initialValues[attr] = "[]"
lbessard@2:                     setattr(cls, "append"+attrname, MetaClass.generateAppendMethod(cls, attr, value_type))
lbessard@2:                     setattr(cls, "insert"+attrname, MetaClass.generateInsertMethod(cls, attr, value_type))
lbessard@2:                     setattr(cls, "remove"+attrname, MetaClass.generateRemoveMethod(cls, attr))
lbessard@2:                     setattr(cls, "count"+attrname, MetaClass.generateCountMethod(cls, attr))
lbessard@2:                     setattr(cls, "set"+attrname, MetaClass.generateSetMethod(cls, attr, ListType))
lbessard@2:                 else:
lbessard@2:                     if write_type == "optional":
lbessard@2:                         setattr(cls, attr, None)
lbessard@2:                         initialValues[attr] = "None"
lbessard@2:                         setattr(cls, "add"+attrname, MetaClass.generateAddMethod(cls, attr, initial, user_classes))
lbessard@2:                         setattr(cls, "delete"+attrname, MetaClass.generateDeleteMethod(cls, attr))
lbessard@2:                     else:
lbessard@2:                         setattr(cls, attr, initial)
lbessard@2:                         initialValues[attr] = initial
lbessard@2:                     setattr(cls, "set"+attrname, MetaClass.generateSetMethod(cls, attr, value_type))
lbessard@2:                 setattr(cls, "get"+attrname, MetaClass.generateGetMethod(cls, attr))
lbessard@2:         setattr(cls, "__init__", MetaClass.generateInitMethod(cls, bases, initialValues, user_classes))
lbessard@2:         setattr(cls, "loadXMLTree", MetaClass.generateLoadXMLTree(cls, bases, dict, user_classes))
lbessard@2:         setattr(cls, "generateXMLText", MetaClass.generateGenerateXMLText(cls, bases, dict))
lbessard@2:         setattr(cls, "singleLineAttributes", True)
lbessard@2: 
lbessard@2:     """
lbessard@2:     Method that generate the method for loading an xml tree by following the
lbessard@2:     attributes list defined
lbessard@2:     """
lbessard@2:     def generateLoadXMLTree(cls, bases, dict, user_classes):
lbessard@2:         def loadXMLTreeMethod(self, tree):
lbessard@2:             # If class is derived, values of inheritance classes are loaded
lbessard@2:             for base in bases:
lbessard@2:                 base.loadXMLTree(self, tree)
lbessard@2:             # Class is a enumerated or limited value
lbessard@2:             if "enum" in dict.keys() or "limit" in dict.keys():
lbessard@2:                 attr_value = GetAttributeValue(tree)
lbessard@2:                 attr_type = dict["basetype"]
lbessard@2:                 val = GetComputedValue(attr_type, attr_value)
lbessard@2:                 self.setValue(val)
lbessard@2:             else:
lbessard@2:                 
lbessard@2:                 # Load the node attributes if they are defined in the list
lbessard@2:                 for attrname, attr in tree._attrs.items():
lbessard@2:                     if attrname in dict.keys():
lbessard@2:                         attr_type, xml_type, write_type = dict[attrname]
lbessard@2:                         attr_value = GetAttributeValue(attr)
lbessard@2:                         if write_type != "optional" or attr_value != "":
lbessard@2:                             # Extracts the value
lbessard@2:                             if attr_type.startswith("bse:"):
lbessard@2:                                 val = GetComputedValue(attr_type, attr_value)
lbessard@2:                             elif attr_type.startswith("cls:"):
lbessard@2:                                 val = eval("%s()"%attr_type[4:], globals().update(user_classes))
lbessard@2:                                 val.loadXMLTree(attr)
lbessard@2:                             setattr(self, attrname, val)
lbessard@2:                 
lbessard@2:                 # Load the node childs if they are defined in the list
lbessard@2:                 for node in tree.childNodes:
lbessard@2:                     name = node.nodeName
lbessard@2:                     # We make fun of #text elements
lbessard@2:                     if name != "#text":
lbessard@2:                         
lbessard@2:                         # Class has an attribute that can have different value types
lbessard@2:                         if "choice_content" in dict.keys() and name in dict["choice_content"].keys():
lbessard@2:                             attr_type = dict["choice_content"][name]
lbessard@2:                             # Extracts the value
lbessard@2:                             if attr_type.startswith("bse:"):
lbessard@2:                                 attr_value = GetAttributeValue(node)
lbessard@2:                                 if write_type != "optional" or attr_value != "":
lbessard@2:                                     val = GetComputedValue(attr_type.replace("[]",""), attr_value)
lbessard@2:                                 else:
lbessard@2:                                     val = None
lbessard@2:                             elif attr_type.startswith("cls:"):
lbessard@2:                                 val = eval("%s()"%attr_type[4:].replace("[]",""), globals().update(user_classes))
lbessard@2:                                 val.loadXMLTree(node)
lbessard@2:                             # Stock value in content attribute
lbessard@2:                             if val:
lbessard@2:                                 if attr_type.endswith("[]"):
lbessard@2:                                     if self.content:
lbessard@2:                                         self.content["value"].append(val)
lbessard@2:                                     else:
lbessard@2:                                         self.content = {"name":name,"value":[val]}
lbessard@2:                                 else:
lbessard@2:                                     self.content = {"name":name,"value":val}
lbessard@2:                         
lbessard@2:                         # Class has a list of attributes that can have different value types
lbessard@2:                         elif "multichoice_content" in dict.keys() and name in dict["multichoice_content"].keys():
lbessard@2:                             attr_type = dict["multichoice_content"][name]
lbessard@2:                             # Extracts the value
lbessard@2:                             if attr_type.startswith("bse:"):
lbessard@2:                                 attr_value = GetAttributeValue(node)
lbessard@2:                                 if write_type != "optional" or attr_value != "":
lbessard@2:                                     val = GetComputedValue(attr_type, attr_value)
lbessard@2:                                 else:
lbessard@2:                                     val = None
lbessard@2:                             elif attr_type.startswith("cls:"):
lbessard@2:                                 val = eval("%s()"%attr_type[4:], globals().update(user_classes))
lbessard@2:                                 val.loadXMLTree(node)
lbessard@2:                             # Add to content attribute list
lbessard@2:                             if val:
lbessard@2:                                 self.content.append({"name":name,"value":val})
lbessard@2:                         
lbessard@2:                         # The node child is defined in the list
lbessard@2:                         elif name in dict.keys():
lbessard@2:                             attr_type, xml_type, write_type = dict[name]
lbessard@2:                             # Extracts the value
lbessard@2:                             if attr_type.startswith("bse:"):
lbessard@2:                                 attr_value = GetAttributeValue(node)
lbessard@2:                                 if write_type != "optional" or attr_value != "":
lbessard@2:                                     val = GetComputedValue(attr_type.replace("[]",""), attr_value)
lbessard@2:                                 else:
lbessard@2:                                     val = None
lbessard@2:                             elif attr_type.startswith("cls:"):
lbessard@2:                                 val = eval("%s()"%attr_type[4:].replace("[]",""), globals().update(user_classes))
lbessard@2:                                 val.loadXMLTree(node)
lbessard@2:                             # Stock value in attribute
lbessard@2:                             if val:
lbessard@2:                                 if attr_type.endswith("[]"):
lbessard@2:                                     getattr(self, name).append(val)
lbessard@2:                                 else:
lbessard@2:                                     setattr(self, name, val)
lbessard@2:         return loadXMLTreeMethod
lbessard@2: 
lbessard@2:     """
lbessard@2:     Method that generates the method for generating an xml text by following the
lbessard@2:     attributes list defined
lbessard@2:     """
lbessard@2:     def generateGenerateXMLText(cls, bases, dict):
lbessard@2:         def generateXMLTextMethod(self, name, indent, extras = {}, derived = False):
lbessard@2:             ind1, ind2 = getIndent(indent, name)
lbessard@2:             if not derived:
lbessard@2:                 text = ind1 + "<%s"%name
lbessard@2:             else:
lbessard@2:                 text = ""
lbessard@2:             if len(bases) > 0:
lbessard@2:                 base_extras = {}
lbessard@2:             if "order" in dict.keys():
lbessard@2:                 order = dict["order"]
lbessard@2:             else:
lbessard@2:                 order = []
lbessard@2:             if "choice_content" in dict.keys() and "choice_content" not in order:
lbessard@2:                 order.append("choice_content") 
lbessard@2:             if "multichoice_content" in dict.keys() and "multichoice_content" not in order:
lbessard@2:                 order.append("multichoice_content") 
lbessard@2:             size = 0
lbessard@2:             first = True
lbessard@2:             for attr, value in extras.items():
lbessard@2:                 if not first and not self.singleLineAttributes:
lbessard@2:                     text += "\n%s"%(ind2)
lbessard@2:                 text += " %s=\"%s\""%(attr, ComputeValue(value))
lbessard@2:                 first = False
lbessard@2:             for attr, values in dict.items():
lbessard@2:                 if attr in ["order","choice_content","multichoice_content"]:
lbessard@2:                     pass
lbessard@2:                 elif attr in ["enum","limit"]:
lbessard@2:                     if not derived:
lbessard@2:                         text += ">%s</%s>\n"%(ComputeValue(self.value),name)
lbessard@2:                     else:
lbessard@2:                         text += ComputeValue(self.value)
lbessard@2:                     return text
lbessard@2:                 elif values[1] == "attribute":
lbessard@2:                     value = getattr(self, attr, None)
lbessard@2:                     if values[2] != "optional" or value != None:
lbessard@2:                         if not first and not self.singleLineAttributes:
lbessard@2:                             text += "\n%s"%(ind2)
lbessard@2:                         if values[0].startswith("cls"):
lbessard@2:                             if len(bases) > 0:
lbessard@2:                                 base_extras[attr] = value.getValue()
lbessard@2:                             else:
lbessard@2:                                 text += " %s=\"%s\""%(attr, ComputeValue(value.getValue()))
lbessard@2:                         else:
lbessard@2:                             if len(bases) > 0:
lbessard@2:                                 base_extras[attr] = value
lbessard@2:                             else:
lbessard@2:                                 text += " %s=\"%s\""%(attr, ComputeValue(value))
lbessard@2:                         first = False
lbessard@2:             if len(bases) > 0:
lbessard@2:                 first, new_text = bases[0].generateXMLText(self, name, indent, base_extras, True)
lbessard@2:                 text += new_text
lbessard@2:             else:
lbessard@2:                 first = True
lbessard@2:             ind3, ind4 = getIndent(indent + 1, name)
lbessard@2:             for attr in order:
lbessard@2:                 value = getattr(self, attr, None)
lbessard@2:                 if attr == "choice_content":
lbessard@2:                     if self.content:
lbessard@2:                         if first:
lbessard@2:                             text += ">\n"
lbessard@2:                             first = False
lbessard@2:                         value_type = dict[attr][self.content["name"]]
lbessard@2:                         if value_type.startswith("bse:"):
lbessard@2:                             if value_type.endswith("[]"):
lbessard@2:                                 for content in self.content["value"]:
lbessard@2:                                     text += ind1 + "<%s>%s</%s>\n"%(self.content["name"], ComputeValue(content), self.content["name"])
lbessard@2:                             else:
lbessard@2:                                 text += ind1 + "<%s>%s</%s>\n"%(self.content["name"], ComputeValue(self.content["value"]), self.content["name"])
lbessard@2:                         elif value_type.endswith("[]"):
lbessard@2:                             for content in self.content["value"]:
lbessard@2:                                 text += content.generateXMLText(self.content["name"], indent + 1)
lbessard@2:                         else:
lbessard@2:                             text += self.content["value"].generateXMLText(self.content["name"], indent + 1)
lbessard@2:                 elif attr == "multichoice_content":
lbessard@2:                     if len(self.content) > 0:
lbessard@2:                         for element in self.content:
lbessard@2:                             if first:
lbessard@2:                                 text += ">\n"
lbessard@2:                                 first = False
lbessard@2:                             value_type = dict[attr][element["name"]]
lbessard@2:                             if value_type.startswith("bse:"):
lbessard@2:                                 text += ind1 + "<%s>%s</%s>\n"%(element["name"], ComputeValue(element["value"]), element["name"])
lbessard@2:                             else:
lbessard@2:                                 text += element["value"].generateXMLText(element["name"], indent + 1)
lbessard@2:                 elif dict[attr][2] != "optional" or value != None:
lbessard@2:                     if dict[attr][0].endswith("[]"):
lbessard@2:                         if first and len(value) > 0:
lbessard@2:                             text += ">\n"
lbessard@2:                             first = False
lbessard@2:                         for element in value:
lbessard@2:                             if dict[attr][0].startswith("bse:"):
lbessard@2:                                 text += ind3 + "<%s>%s</%s>\n"%(attr, ComputeValue(element), attr)
lbessard@2:                             else:
lbessard@2:                                 text += element.generateXMLText(attr, indent + 1)
lbessard@2:                     else:
lbessard@2:                         if first:
lbessard@2:                             text += ">\n"
lbessard@2:                             first = False
lbessard@2:                         if dict[attr][0].startswith("bse:"):
lbessard@2:                             text += ind3 + "<%s>%s</%s>\n"%(attr, ComputeValue(value), attr)
lbessard@2:                         else:
lbessard@2:                             text += getattr(self, attr).generateXMLText(attr, indent + 1)
lbessard@2:             if not derived:
lbessard@2:                 if first:
lbessard@2:                     text += "/>\n"
lbessard@2:                 else:
lbessard@2:                     text += ind1 + "</%s>\n"%(name)
lbessard@2:                 return text
lbessard@2:             else:
lbessard@2:                 return first, text
lbessard@2:         return generateXMLTextMethod
lbessard@2:         
lbessard@2:     """
lbessard@2:     Methods that generates the different methods for setting and getting the attributes
lbessard@2:     """
lbessard@2:     
lbessard@2:     def generateInitMethod(cls, bases, dict, user_classes):
lbessard@2:         def initMethod(self):
lbessard@2:             for base in bases:
lbessard@2:                 base.__init__(self)
lbessard@2:             for attr, initial in dict.items():
lbessard@2:                 setattr(self, attr, eval(initial, globals().update(user_classes)))
lbessard@2:         return initMethod
lbessard@2: 
lbessard@2:     def generateSetMethod(cls, attr, choice_type):
lbessard@2:         def setMethod(self, value):
lbessard@2:             setattr(self, attr, value)
lbessard@2:         return setMethod
lbessard@2: 
lbessard@2:     def generateSetChoiceMethod(cls, attr_type):
lbessard@2:         def setChoiceMethod(self, name, value):
lbessard@2:             self.content = {"name":name,"value":value}
lbessard@2:         return setChoiceMethod
lbessard@2: 
lbessard@2:     def generateSetEnumMethod(cls, enum, attr_type):
lbessard@2:         def setEnumMethod(self, value):
lbessard@2:             if value in enum:
lbessard@2:                 self.value = value
lbessard@2:             else:
lbessard@2:                 raise ValueError, "%s is not a valid value. Must be in %s"%(value, str(enum))
lbessard@2:         return setEnumMethod
lbessard@2: 
lbessard@2:     def generateSetLimitMethod(cls, limit, attr_type):
lbessard@2:         def setMethod(self, value):
lbessard@2:             if "min" in limit and value < limit["min"]:
lbessard@2:                 raise ValueError, "%s is not a valid value. Must be greater than %d"%(value, limit["min"])
lbessard@2:             elif "max" in limit and value > limit["max"]:
lbessard@2:                 raise ValueError, "%s is not a valid value. Must be smaller than %d"%(value, limit["max"])
lbessard@2:             else:
lbessard@2:                 self.value = value
lbessard@2:         return setMethod
lbessard@2: 
lbessard@2:     def generateGetMethod(cls, attr):
lbessard@2:         def getMethod(self):
lbessard@2:             return getattr(self, attr, None)
lbessard@2:         return getMethod
lbessard@2: 
lbessard@2:     def generateAddMethod(cls, attr, initial, user_classes):
lbessard@2:         def addMethod(self):
lbessard@2:             setattr(self, attr, eval(initial, globals().update(user_classes)))
lbessard@2:         return addMethod
lbessard@2: 
lbessard@2:     def generateDeleteMethod(cls, attr):
lbessard@2:         def deleteMethod(self):
lbessard@2:             setattr(self, attr, None)
lbessard@2:         return deleteMethod
lbessard@2: 
lbessard@2:     def generateAppendMethod(cls, attr, attr_type):
lbessard@2:         def appendMethod(self, value):
lbessard@2:             getattr(self, attr).append(value)
lbessard@2:         return appendMethod
lbessard@2: 
lbessard@2:     def generateInsertMethod(cls, attr, attr_type):
lbessard@2:         def insertMethod(self, index, value):
lbessard@2:             getattr(self, attr).insert(index, value)
lbessard@2:         return insertMethod
lbessard@2: 
lbessard@2:     def generateAppendChoiceMethod(cls, choice_types):
lbessard@2:         def appendMethod(self, name, value):
lbessard@2:             self.content.append({"name":name,"value":value})
lbessard@2:         return appendMethod
lbessard@2: 
lbessard@2:     def generateInsertChoiceMethod(cls, choice_types):
lbessard@2:         def insertMethod(self, index, name, value):
lbessard@2:             self.content.insert(index, {"name":name,"value":value})
lbessard@2:         return insertMethod
lbessard@2: 
lbessard@2:     def generateRemoveMethod(cls, attr):
lbessard@2:         def removeMethod(self, index):
lbessard@2:             getattr(self, attr).pop(index)
lbessard@2:         return removeMethod
lbessard@2: 
lbessard@2:     def generateCountMethod(cls, attr):
lbessard@2:         def countMethod(self):
lbessard@2:             return len(getattr(self, attr))
lbessard@2:         return countMethod
lbessard@2: 
lbessard@2: """
lbessard@2: Methods that generate the classes
lbessard@2: """
lbessard@2: def CreateClasses(user_classes, user_types):
lbessard@2:     for classname in XMLClasses.keys():
lbessard@2:         CreateClass(classname, user_classes, user_types)
lbessard@2: 
lbessard@2: def CreateClass(classname, user_classes, user_types):
lbessard@2:     # Checks that classe haven't been generated yet
lbessard@2:     if classname not in user_classes and classname not in user_types and classname in XMLClasses:
lbessard@2:         inheritance, attributes = XMLClasses[classname]
lbessard@2:         #print classe, inheritance, attributes
lbessard@2:         dict = {}
lbessard@2:         bases = []
lbessard@2:         
lbessard@2:         # If inheritance classes haven't been generated
lbessard@2:         for base in inheritance:
lbessard@2:             if base not in user_classes:
lbessard@2:                 CreateClass(base, user_classes, user_types)
lbessard@2:             bases.append(user_classes[base])
lbessard@2:         
lbessard@2:         # Checks that all attribute types are available 
lbessard@2:         for attribute, type_attribute in attributes.items():
lbessard@2:             if attribute == "group":
lbessard@2:                 user_types[classname] = type_attribute
lbessard@2:             elif attribute == "ref":
lbessard@2:                 user_types[classname] = {}
lbessard@2:                 for attr in type_attribute:
lbessard@2:                     if attr[4:] not in user_types:
lbessard@2:                         CreateClass(attr[4:], user_classes, user_types)
lbessard@2:                     user_types[classname].update(user_types[attr[4:]])
lbessard@2:             elif attribute in ["choice_content","multichoice_content"]:
lbessard@2:                 element_types = {}
lbessard@2:                 for attr, value in type_attribute.items():
lbessard@2:                     if attr == "ref":
lbessard@2:                         for ref in type_attribute["ref"]:
lbessard@2:                             if ref[4:] not in user_types:
lbessard@2:                                 CreateClass(ref[4:], user_classes, user_types)
lbessard@2:                             element_types.update(user_types[ref[4:]])
lbessard@2:                     else:
lbessard@2:                         element_types[attr] = value
lbessard@2:                 dict[attribute] = element_types
lbessard@2:             else:
lbessard@2:                 dict[attribute] = type_attribute
lbessard@2:                 if attribute == "enum":
lbessard@2:                     user_types["%s_enum"%classname] = type_attribute
lbessard@2:                 elif attribute not in ["limit", "order"]:
lbessard@2:                     if type_attribute[0].startswith("ppx:"):
lbessard@2:                         type_compute = type_attribute[0][4:].replace("[]","")
lbessard@2:                         if type_compute not in user_classes:
lbessard@2:                             CreateClass(type_compute, user_classes, user_types)
lbessard@2:         if "group" not in attributes.keys() and "ref" not in attributes.keys():
lbessard@2:             cls = MetaClass.__new__(MetaClass, classname, tuple(bases), dict)
lbessard@2:             MetaClass.__init__(cls, classname, tuple(bases), dict, user_classes)
lbessard@2:             user_classes[classname] = cls
lbessard@2: 
lbessard@2: """
lbessard@2: Methods that print the classes generated
lbessard@2: """
lbessard@2: def PrintClasses():
lbessard@2:     for classname, xmlclass in XMLClasses.items():
lbessard@2:         print "%s : %s\n"%(classname, str(xmlclass))
lbessard@2:     
lbessard@2: def PrintClassNames():
lbessard@2:     classnames = XMLClasses.keys()
lbessard@2:     classnames.sort()
lbessard@2:     for classname in classnames:
lbessard@2:         print classname