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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor

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#based on the plcopen standard. 

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#

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#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

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#

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#See COPYING file for copyrights details.

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#

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#This library is free software; you can redistribute it and/or

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#modify it under the terms of the GNU General Public

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#License as published by the Free Software Foundation; either

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#version 2.1 of the License, or (at your option) any later version.

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#

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#This library is distributed in the hope that it will be useful,

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#but WITHOUT ANY WARRANTY; without even the implied warranty of

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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

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#General Public License for more details.

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#

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#You should have received a copy of the GNU General Public

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#License along with this library; if not, write to the Free Software

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#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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import re

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import datetime

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from xml.dom import minidom

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from types import *

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from xmlclass import *

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def GenerateDictFacets(facets):

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    return dict([(name, (None, False)) for name in facets])

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def GenerateSimpleTypeXMLText(function):

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    def generateXMLTextMethod(value, name=None, indent=0):

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        text = ""

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        if name is not None:

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            ind1, ind2 = getIndent(indent, name)

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            text += ind1 + "<%s>" % name

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        text += function(value)

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        if name is not None:

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            text += "</%s>\n" % name

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        return text

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    return generateXMLTextMethod

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def GenerateFloatXMLText(extra_values=[]):

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    def generateXMLTextMethod(value, name=None, indent=0):

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        text = ""

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        if name is not None:

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            ind1, ind2 = getIndent(indent, name)

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            text += ind1 + "<%s>" % name

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        if value in extra_values or value % 1 != 0 or isinstance(value, IntType):

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            text += str(value)

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        else:

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            text += "%.0f" % value

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        if name is not None:

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            text += "</%s>\n" % name

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        return text

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    return generateXMLTextMethod

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DEFAULT_FACETS = GenerateDictFacets(["pattern", "whiteSpace", "enumeration"])

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NUMBER_FACETS = GenerateDictFacets(DEFAULT_FACETS.keys() + ["maxInclusive", "maxExclusive", "minInclusive", "minExclusive"])

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DECIMAL_FACETS = GenerateDictFacets(NUMBER_FACETS.keys() + ["totalDigits", "fractionDigits"])

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STRING_FACETS = GenerateDictFacets(DEFAULT_FACETS.keys() + ["length", "minLength", "maxLength"])

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ALL_FACETS = ["pattern", "whiteSpace", "enumeration", "maxInclusive", 

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    "maxExclusive", "minInclusive", "minExclusive", "totalDigits", 

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    "fractionDigits", "length", "minLength", "maxLength"]

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    72

#-------------------------------------------------------------------------------

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#                           Structure reducing functions

    74

#-------------------------------------------------------------------------------

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    76

    77

# Documentation elements

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    79

def ReduceAppInfo(factory, attributes, elements):

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    return {"type": "appinfo", "source": attributes.get("source", None), 

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            "content": "\n".join(elements)}

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def ReduceDocumentation(factory, attributes, elements):

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    return {"type": "documentation", "source": attributes.get("source", None), 

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            "language": attributes.get("lang", "any"), "content": "\n".join(elements)}

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def ReduceAnnotation(factory, attributes, elements):

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    annotations, children = factory.ReduceElements(elements)

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    annotation = {"type": "annotation", "appinfo": [], "documentation": {}}

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    for child in children:

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        if child["type"] == "appinfo":

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            annotation["appinfo"].append((child["source"], child["content"]))

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        elif child["type"] == "documentation":

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            if child["source"] is not None:

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                text = "(source: %(source)s):\n%(content)s\n\n"%child

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            else:

    99

                text = child["content"] + "\n\n"

   100

            if not annotation["documentation"].has_key(child["language"]):

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                annotation["documentation"] = text

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            else:

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                annotation["documentation"] += text

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    return annotation

   105

   106

# Simple type elements

   107

   108

def GenerateFacetReducing(facetname, canbefixed):

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    def ReduceFacet(factory, attributes, elements):

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        annotations, children = factory.ReduceElements(elements)

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        if attributes.has_key("value"):

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            facet = {"type": facetname, "value": attributes["value"], "doc": annotations}

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            if canbefixed:

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                facet["fixed"] = attributes.get("fixed", False)

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            return facet

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        raise ValueError("A value must be defined for the \"%s\" facet!" % facetname)

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    return ReduceFacet

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def ReduceList(factory, attributes, elements):

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    annotations, children = factory.ReduceElements(elements)

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    list = {"type": "list", "itemType": attributes.get("itemType", None), "doc": annotations}

   123

   124

    if len(children) > 0 and children[0]["type"] == SIMPLETYPE:

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        if list["itemType"] is None:

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            list["itemType"] = children[0]

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        else:

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            raise ValueError("Only one base type can be defined for restriction!")

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    if list["itemType"] is None:

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        raise ValueError("No base type has been defined for list!")

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    return list

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   133

   134

def ReduceUnion(factory, attributes, elements):

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    annotations, children = factory.ReduceElements(elements)

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    union = {"type": "union", "memberTypes": attributes.get("memberTypes", []), "doc": annotations}

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    for child in children:

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        if child["type"] == SIMPLETYPE:

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            union["memberTypes"].appendchild

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    if len(union["memberTypes"]) == 0:

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        raise ValueError("No base type has been defined for union!")

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    return union

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def ReduceSimpleType(factory, attributes, elements):

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    # Reduce all the simple type children

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    annotations, children = factory.ReduceElements(elements)

   149

   150

    typeinfos = children[0]

   151

   152

    # Initialize type informations

   153

    facets = {}

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    simpleType = {"type": SIMPLETYPE, "final": attributes.get("final", []), "doc": annotations}

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    if attributes.has_key("name"):

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        simpleType["name"] = attributes["name"]

   157

   158

    if typeinfos["type"] == "restriction":

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        # Search for base type definition

   160

        if isinstance(typeinfos["base"], (StringType, UnicodeType)):

   161

            basetypeinfos = factory.FindSchemaElement(typeinfos["base"], SIMPLETYPE)

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            if basetypeinfos is None:

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                raise "\"%s\" isn't defined!" % typeinfos["base"] 

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        else:

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            basetypeinfos = typeinfos["base"]

   166

   167

        # Check that base type is a simple type

   168

        if basetypeinfos["type"] != SIMPLETYPE:

   169

            raise ValueError("Base type given isn't a simpleType!")

   170

   171

        simpleType["basename"] = basetypeinfos["basename"]

   172

   173

        # Check that derivation is allowed

   174

        if basetypeinfos.has_key("final"):

   175

            if basetypeinfos["final"].has_key("#all"):

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                raise ValueError("Base type can't be derivated!")

   177

            if basetypeinfos["final"].has_key("restriction"):

   178

                raise ValueError("Base type can't be derivated by restriction!")

   179

   180

        # Extract simple type facets

   181

        for facet in typeinfos["facets"]:

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            facettype = facet["type"]

   183

            if not basetypeinfos["facets"].has_key(facettype):

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                raise ValueError("\"%s\" facet can't be defined for \"%s\" type!" % (facettype, type))

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            elif basetypeinfos["facets"][facettype][1]:

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                raise ValueError("\"%s\" facet is fixed on base type!" % facettype)

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            value = facet["value"]

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            basevalue = basetypeinfos["facets"][facettype][0]

   189

            if facettype == "enumeration":

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                value = basetypeinfos["extract"](value, False)

   191

                if len(facets) == 0:

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                    facets["enumeration"] = ([value], False)

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                    continue

   194

                elif facets.keys() == ["enumeration"]:

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                    facets["enumeration"][0].append(value)

   196

                    continue

   197

                else:

   198

                    raise ValueError("\"enumeration\" facet can't be defined with another facet type!")

   199

            elif facets.has_key("enumeration"):

   200

                raise ValueError("\"enumeration\" facet can't be defined with another facet type!")

   201

            elif facets.has_key(facettype):

   202

                raise ValueError("\"%s\" facet can't be defined two times!" % facettype)

   203

            elif facettype == "length":

   204

                if facets.has_key("minLength"):

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                    raise ValueError("\"length\" and \"minLength\" facets can't be defined at the same time!")

   206

                if facets.has_key("maxLength"):

   207

                    raise ValueError("\"length\" and \"maxLength\" facets can't be defined at the same time!")

   208

                try:

   209

                    value = int(value)

   210

                except:

   211

                    raise ValueError("\"length\" must be an integer!")

   212

                if value < 0:

   213

                    raise ValueError("\"length\" can't be negative!")

   214

                elif basevalue is not None and basevalue != value:

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                    raise ValueError("\"length\" can't be different from \"length\" defined in base type!")

   216

            elif facettype == "minLength":

   217

                if facets.has_key("length"):

   218

                    raise ValueError("\"length\" and \"minLength\" facets can't be defined at the same time!")

   219

                try:

   220

                    value = int(value)

   221

                except:

   222

                    raise ValueError("\"minLength\" must be an integer!")

   223

                if value < 0:

   224

                    raise ValueError("\"minLength\" can't be negative!")

   225

                elif facets.has_key("maxLength") and value > facets["maxLength"]:

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                    raise ValueError("\"minLength\" must be lesser than or equal to \"maxLength\"!")

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                elif basevalue is not None and basevalue < value:

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                    raise ValueError("\"minLength\" can't be lesser than \"minLength\" defined in base type!")

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            elif facettype == "maxLength":

   230

                if facets.has_key("length"):

   231

                    raise ValueError("\"length\" and \"maxLength\" facets can't be defined at the same time!")

   232

                try:

   233

                    value = int(value)

   234

                except:

   235

                    raise ValueError("\"maxLength\" must be an integer!")

   236

                if value < 0:

   237

                    raise ValueError("\"maxLength\" can't be negative!")

   238

                elif facets.has_key("minLength") and value < facets["minLength"]:

   239

                    raise ValueError("\"minLength\" must be lesser than or equal to \"maxLength\"!")

   240

                elif basevalue is not None and basevalue > value:

   241

                    raise ValueError("\"maxLength\" can't be greater than \"maxLength\" defined in base type!")

   242

            elif facettype == "minInclusive":

   243

                if facets.has_key("minExclusive"):

   244

                    raise ValueError("\"minExclusive\" and \"minInclusive\" facets can't be defined at the same time!")

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                value = basetypeinfos["extract"](facet["value"], False)

   246

                if facets.has_key("maxInclusive") and value > facets["maxInclusive"][0]:

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                    raise ValueError("\"minInclusive\" must be lesser than or equal to \"maxInclusive\"!")

   248

                elif facets.has_key("maxExclusive") and value >= facets["maxExclusive"][0]:

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                    raise ValueError("\"minInclusive\" must be lesser than \"maxExclusive\"!")

   250

            elif facettype == "minExclusive":

   251

                if facets.has_key("minInclusive"):

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                    raise ValueError("\"minExclusive\" and \"minInclusive\" facets can't be defined at the same time!")

   253

                value = basetypeinfos["extract"](facet["value"], False)

   254

                if facets.has_key("maxInclusive") and value >= facets["maxInclusive"][0]:

   255

                    raise ValueError("\"minExclusive\" must be lesser than \"maxInclusive\"!")

   256

                elif facets.has_key("maxExclusive") and value >= facets["maxExclusive"][0]:

   257

                    raise ValueError("\"minExclusive\" must be lesser than \"maxExclusive\"!")

   258

            elif facettype == "maxInclusive":

   259

                if facets.has_key("maxExclusive"):

   260

                    raise ValueError("\"maxExclusive\" and \"maxInclusive\" facets can't be defined at the same time!")

   261

                value = basetypeinfos["extract"](facet["value"], False)

   262

                if facets.has_key("minInclusive") and value < facets["minInclusive"][0]:

   263

                    raise ValueError("\"minInclusive\" must be lesser than or equal to \"maxInclusive\"!")

   264

                elif facets.has_key("minExclusive") and value <= facets["minExclusive"][0]:

   265

                    raise ValueError("\"minExclusive\" must be lesser than \"maxInclusive\"!")

   266

            elif facettype == "maxExclusive":

   267

                if facets.has_key("maxInclusive"):

   268

                    raise ValueError("\"maxExclusive\" and \"maxInclusive\" facets can't be defined at the same time!")

   269

                value = basetypeinfos["extract"](facet["value"], False)

   270

                if facets.has_key("minInclusive") and value <= facets["minInclusive"][0]:

   271

                    raise ValueError("\"minInclusive\" must be lesser than \"maxExclusive\"!")

   272

                elif facets.has_key("minExclusive") and value <= facets["minExclusive"][0]:

   273

                    raise ValueError("\"minExclusive\" must be lesser than \"maxExclusive\"!")

   274

            elif facettype == "whiteSpace":

   275

                if basevalue == "collapse" and value in ["preserve", "replace"] or basevalue == "replace" and value == "preserve":

   276

                   raise ValueError("\"whiteSpace\" is incompatible with \"whiteSpace\" defined in base type!")

   277

            elif facettype == "totalDigits":

   278

                if facets.has_key("fractionDigits") and value <= facets["fractionDigits"][0]:

   279

                    raise ValueError("\"fractionDigits\" must be lesser than or equal to \"totalDigits\"!")

   280

                elif basevalue is not None and value > basevalue:

   281

                    raise ValueError("\"totalDigits\" can't be greater than \"totalDigits\" defined in base type!")

   282

            elif facettype == "fractionDigits":

   283

                if facets.has_key("totalDigits") and value <= facets["totalDigits"][0]:

   284

                    raise ValueError("\"fractionDigits\" must be lesser than or equal to \"totalDigits\"!")

   285

                elif basevalue is not None and value > basevalue:

   286

                    raise ValueError("\"totalDigits\" can't be greater than \"totalDigits\" defined in base type!")

   287

            facets[facettype] = (value, facet.get("fixed", False))

   288

   289

        # Report not redefined facet from base type to new created type 

   290

        for facettype, facetvalue in basetypeinfos["facets"].items():

   291

            if not facets.has_key(facettype):

   292

                facets[facettype] = facetvalue

   293

   294

        # Generate extract value for new created type

   295

        def ExtractSimpleTypeValue(attr, extract=True):

   296

            value = basetypeinfos["extract"](attr, extract)

   297

            for facetname, (facetvalue, facetfixed) in facets.items():

   298

                if facetvalue is not None:

   299

                    if facetname == "enumeration" and value not in facetvalue:

   300

                        raise ValueError("\"%s\" not in enumerated values" % value)

   301

                    elif facetname == "length" and len(value) != facetvalue:

   302

                        raise ValueError("value must have a length of %d" % facetvalue)

   303

                    elif facetname == "minLength" and len(value) < facetvalue:

   304

                        raise ValueError("value must have a length of %d at least" % facetvalue)

   305

                    elif facetname == "maxLength" and len(value) > facetvalue:

   306

                        raise ValueError("value must have a length of %d at most" % facetvalue)

   307

                    elif facetname == "minInclusive" and value < facetvalue:

   308

                        raise ValueError("value must be greater than or equal to %s" % str(facetvalue))

   309

                    elif facetname == "minExclusive" and value <= facetvalue:

   310

                        raise ValueError("value must be greater than %s" % str(facetvalue))

   311

                    elif facetname == "maxInclusive" and value > facetvalue:

   312

                        raise ValueError("value must be lesser than or equal to %s" % str(facetvalue))

   313

                    elif facetname == "maxExclusive"  and value >= facetvalue:

   314

                        raise ValueError("value must be lesser than %s" % str(facetvalue))

   315

                    elif facetname == "pattern":

   316

                        model = re.compile("(?:%s)?$" % facetvalue)

   317

                        result = model.match(value)

   318

                        if result is None:

   319

                            raise ValueError("value doesn't follow the pattern %s" % facetvalue)

   320

                    elif facetname == "whiteSpace":

   321

                        if facetvalue == "replace":

   322

                            value = GetNormalizedString(value, False)

   323

                        elif facetvalue == "collapse":

   324

                            value = GetToken(value, False)

   325

            return value

   326

   327

        def CheckSimpleTypeValue(value):

   328

            for facetname, (facetvalue, facetfixed) in facets.items():

   329

                if facetvalue is not None:

   330

                    if facetname == "enumeration" and value not in facetvalue:

   331

                        return False

   332

                    elif facetname == "length" and len(value) != facetvalue:

   333

                        return False

   334

                    elif facetname == "minLength" and len(value) < facetvalue:

   335

                        return False

   336

                    elif facetname == "maxLength" and len(value) > facetvalue:

   337

                        return False

   338

                    elif facetname == "minInclusive" and value < facetvalue:

   339

                        return False

   340

                    elif facetname == "minExclusive" and value <= facetvalue:

   341

                        return False

   342

                    elif facetname == "maxInclusive" and value > facetvalue:

   343

                        return False

   344

                    elif facetname == "maxExclusive"  and value >= facetvalue:

   345

                        return False

   346

                    elif facetname == "pattern":

   347

                        model = re.compile("(?:%s)?$" % facetvalue)

   348

                        result = model.match(value)

   349

                        if result is None:

   350

                            raise ValueError("value doesn't follow the pattern %s" % facetvalue)

   351

            return True

   352

   353

        def SimpleTypeInitialValue():

   354

            for facetname, (facetvalue, facetfixed) in facets.items():

   355

                if facetvalue is not None:

   356

                    if facetname == "enumeration":

   357

                        return facetvalue[0]

   358

                    elif facetname == "length":

   359

                        return " "*facetvalue

   360

                    elif facetname == "minLength":

   361

                        return " "*minLength

   362

                    elif facetname == "minInclusive" and facetvalue > 0:

   363

                        return facetvalue

   364

                    elif facetname == "minExclusive" and facetvalue >= 0:

   365

                        return facetvalue + 1

   366

                    elif facetname == "maxInclusive" and facetvalue < 0:

   367

                        return facetvalue

   368

                    elif facetname == "maxExclusive"  and facetvalue <= 0:

   369

                        return facetvalue - 1

   370

            return basetypeinfos["initial"]()

   371

   372

        GenerateSimpleType = basetypeinfos["generate"]

   373

   374

    elif typeinfos["type"] == "list":

   375

        # Search for item type definition

   376

        if isinstance(typeinfos["itemType"], (StringType, UnicodeType)):

   377

            itemtypeinfos = factory.FindSchemaElement(typeinfos["itemType"], SIMPLETYPE)

   378

            if itemtypeinfos is None:

   379

                raise "\"%s\" isn't defined!" % typeinfos["itemType"]

   380

        else:

   381

            itemtypeinfos = typeinfos["itemType"]

   382

   383

        # Check that item type is a simple type

   384

        if itemtypeinfos["type"] != SIMPLETYPE:

   385

            raise ValueError, "Item type given isn't a simpleType!"

   386

   387

        simpleType["basename"] = "list"

   388

   389

        # Check that derivation is allowed

   390

        if itemtypeinfos.has_key("final"):

   391

            if itemtypeinfos["final"].has_key("#all"):

   392

                raise ValueError("Item type can't be derivated!")

   393

            if itemtypeinfos["final"].has_key("list"):

   394

                raise ValueError("Item type can't be derivated by list!")

   395

   396

        # Generate extract value for new created type

   397

        def ExtractSimpleTypeValue(attr, extract = True):

   398

            values = []

   399

            for value in GetToken(attr, extract).split(" "):

   400

                values.append(itemtypeinfos["extract"](value, False))

   401

            return values

   402

   403

        def CheckSimpleTypeValue(value):

   404

            for item in value:

   405

                result = itemtypeinfos["check"](item)

   406

                if not result:

   407

                    return result

   408

            return True

   409

   410

        SimpleTypeInitialValue = lambda: []

   411

   412

        GenerateSimpleType = GenerateSimpleTypeXMLText(lambda x: " ".join(map(itemtypeinfos["generate"], x)))

   413

   414

        facets = GenerateDictFacets(["length", "maxLength", "minLength", "enumeration", "pattern"])

   415

        facets["whiteSpace"] = ("collapse", False)

   416

   417

    elif typeinfos["type"] == "union":

   418

        # Search for member types definition

   419

        membertypesinfos = []

   420

        for membertype in typeinfos["memberTypes"]:

   421

            if isinstance(membertype, (StringType, UnicodeType)):

   422

                infos = factory.FindSchemaElement(membertype, SIMPLETYPE)

   423

                if infos is None:

   424

                    raise ValueError("\"%s\" isn't defined!" % membertype)

   425

            else:

   426

                infos = membertype

   427

   428

            # Check that member type is a simple type

   429

            if infos["type"] != SIMPLETYPE:

   430

                raise ValueError("Member type given isn't a simpleType!")

   431

   432

            # Check that derivation is allowed

   433

            if infos.has_key("final"):

   434

                if infos["final"].has_key("#all"):

   435

                    raise ValueError("Item type can't be derivated!")

   436

                if infos["final"].has_key("union"):

   437

                    raise ValueError("Member type can't be derivated by union!")

   438

   439

            membertypesinfos.append(infos)

   440

   441

        simpleType["basename"] = "union"

   442

   443

        # Generate extract value for new created type

   444

        def ExtractSimpleTypeValue(attr, extract = True):

   445

            if extract:

   446

                value = GetAttributeValue(attr)

   447

            else:

   448

                value = attr

   449

            for infos in membertypesinfos:

   450

                try:

   451

                    return infos["extract"](attr, False)

   452

                except:

   453

                    pass

   454

            raise ValueError("\"%s\" isn't valid for type defined for union!")

   455

   456

        def CheckSimpleTypeValue(value):

   457

            for infos in membertypesinfos:

   458

                result = infos["check"](value)

   459

                if result:

   460

                    return result

   461

            return False

   462

   463

        SimpleTypeInitialValue = membertypesinfos[0]["initial"]

   464

   465

        def GenerateSimpleTypeFunction(value):

   466

            if isinstance(value, BooleanType):

   467

                return {True: "true", False: "false"}[value]

   468

            else:

   469

                return str(value)

   470

        GenerateSimpleType = GenerateSimpleTypeXMLText(GenerateSimpleTypeFunction)

   471

   472

        facets = GenerateDictFacets(["pattern", "enumeration"])

   473

   474

    simpleType["facets"] = facets

   475

    simpleType["extract"] = ExtractSimpleTypeValue

   476

    simpleType["initial"] = SimpleTypeInitialValue

   477

    simpleType["check"] = CheckSimpleTypeValue

   478

    simpleType["generate"] = GenerateSimpleType

   479

    return simpleType

   480

   481

   482

# Complex type

   483

   484

def ExtractAttributes(factory, elements, base = None):

   485

    if base is not None:

   486

        basetypeinfos = factory.FindSchemaElement(base, COMPLEXTYPE)

   487

        if isinstance(basetypeinfos, (UnicodeType, StringType)):

   488

            attrnames = {}

   489

        else:

   490

            attrnames = dict(map(lambda x:(x["name"], True), basetypeinfos["attributes"]))

   491

    else:

   492

        attrnames = {}

   493

    attrs = []

   494

    for element in elements:

   495

        if element["type"] == ATTRIBUTE:

   496

            if attrnames.get(element["name"], False):

   497

                raise ValueError("\"%s\" attribute has been defined two times!" % element["name"])

   498

            else:

   499

                attrnames[element["name"]] = True

   500

                attrs.append(element)

   501

        elif element["type"] == "attributeGroup":

   502

            attrgroup = factory.FindSchemaElement(element["ref"], ATTRIBUTESGROUP)

   503

            for attr in attrgroup["attributes"]:

   504

                if attrnames.get(attr["name"], False):

   505

                    raise ValueError("\"%s\" attribute has been defined two times!" % attr["name"])

   506

                else:

   507

                    attrnames[attr["name"]] = True

   508

                    attrs.append(attr)

   509

        elif element["type"] == "anyAttribute":

   510

            raise ValueError("\"anyAttribute\" element isn't supported yet!")

   511

    return attrs

   512

   513

   514

def ReduceRestriction(factory, attributes, elements):

   515

    annotations, children = factory.ReduceElements(elements)

   516

    restriction = {"type": "restriction", "base": attributes.get("base", None), "facets": [], "doc": annotations}

   517

    if len(children) > 0 and children[0]["type"] == SIMPLETYPE:

   518

        if restriction["base"] is None:

   519

            restriction["base"] = children.pop(0)

   520

        else:

   521

            raise ValueError("Only one base type can be defined for restriction!")

   522

    if restriction["base"] is None:

   523

        raise ValueError("No base type has been defined for restriction!")

   524

   525

    while len(children) > 0 and children[0]["type"] in ALL_FACETS:

   526

        restriction["facets"].append(children.pop(0))

   527

    restriction["attributes"] = ExtractAttributes(factory, children)

   528

    return restriction

   529

   530