Trying a new way to generate way to generate files.

11 files changed, 2709 insertions, 21 deletions

diff --git a/Makefile b/Makefile
index fd67d4e..c717472 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,24 @@
-all: env-packages
+XSDS = xsd/ee-bom.xsd xsd/ee-catalog.xsd
+XSD_PYS = src/ee/xml/bomFile.py src/ee/xml/catalogFile.py
 
-env:
+all: env/pip.cookie $(XSD_PYS)
+
+env/bin/pip:
 	virtualenv -p python3 env
 
-env-packages: env
+env/pip.cookie: requirements.txt env/bin/pip
 	env/bin/pip install -r requirements.txt
 	env/bin/pip install -e .
+	@touch env/pip.cookie
+
+src/ee/xml/__init__.py:
+	touch $@
+
+src/ee/xml/%File.py: xsd/ee-%.xsd
+	env/bin/generateDS.py \
+	    -f \
+	    --one-file-per-xsd \
+	    --output-directory=src/ee/xml \
+	    -m $<
+
+$(XSDS): env/pip.cookie src/ee/xml/__init__.py
diff --git a/requirements.txt b/requirements.txt
index 308badc..f0c6837 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,7 @@ requests==2.19.1
 tox==3.1.2
 
 selenium==3.141.0
+generateds==2.30.11
 
 # for development
 jupyter==1.0.0
diff --git a/src/ee/__main__.py b/src/ee/__main__.py
index 6a7517f..a387b1d 100644
--- a/src/ee/__main__.py
+++ b/src/ee/__main__.py
@@ -1,9 +1,11 @@
-from functools import total_ordering
-import ee.tools
 import importlib
 import logging
 import pkgutil
 import sys
+import os
+from functools import total_ordering
+
+import ee.tools
 
 
 def eprint(*args, **kwargs):
@@ -50,6 +52,9 @@ def main():
     name = sys.argv[1]
     del sys.argv[1]
 
+    if os.path.isdir("py"):
+        sys.path.append("py")
+
     for t in tools:
         if t.name != name:
             continue
diff --git a/src/ee/bom/part_type_uris.py b/src/ee/bom/part_type_uris.py
new file mode 100644
index 0000000..b7f5e88
--- /dev/null
+++ b/src/ee/bom/part_type_uris.py
@@ -0,0 +1,5 @@
+CAPACITOR = "http://purl.org/ee/part-type#capacitor"
+RESISTOR = "http://purl.org/ee/part-type#resistor"
+DIODE = "http://purl.org/ee/part-type#diode"
+INDUCTOR = "http://purl.org/ee/part-type#inductor"
+CRYSTAL = "http://purl.org/ee/part-type#inductor"
diff --git a/src/ee/kicad/make_bom.py b/src/ee/kicad/make_bom.py
new file mode 100644
index 0000000..3fa102f
--- /dev/null
+++ b/src/ee/kicad/make_bom.py
@@ -0,0 +1,151 @@
+import sys
+from typing import Optional, List, Callable, Mapping
+from xml.dom import minidom
+from xml.etree import ElementTree
+
+from ee import EeException
+from ee.kicad.model import Component
+from ee.kicad.read_schematic import read_schematics
+from ee.kicad.to_bom import to_bom, to_bom_xml
+from ee.tools import mk_parents
+from ee.xml import bomFile
+from ee.bom import part_type_uris
+
+__all__ = [
+    "StrategyCallable",
+    "MakeBomStrategy",
+    "apply_strategies",
+    "mpn_strategy",
+    "part_type_strategy",
+    "dpn_strategy_factory",
+    "make_bom",
+]
+
+StrategyCallable = Callable[[Component, bomFile.Part], Optional[bomFile.Part]]
+
+
+def apply_strategies(c: Component, part: bomFile.Part, strategies: List[StrategyCallable]):
+    for strategy in strategies:
+        part = strategy(c, part)
+
+        if part is None:
+            return
+
+        if not isinstance(part, bomFile.Part):
+            raise EeException("Values returned from strategy must be a bomFile.Part, got {}".format(type(part)))
+
+    return part
+
+
+def part_type_strategy(component: Component, part: bomFile.Part) -> bomFile.Part:
+    fp = component.footprint
+    if fp is None:
+        return part
+
+    lib, part_name = fp.split(":")
+
+    if lib == "Capacitor_SMD":
+        part.part_typeProp = part_type_uris.CAPACITOR
+    elif lib == "Resistor_SMD":
+        part.part_typeProp = part_type_uris.RESISTOR
+    elif lib == "Diode_SMD":
+        part.part_typeProp = part_type_uris.DIODE
+    elif lib == "Inductor_SMD":
+        part.part_typeProp = part_type_uris.INDUCTOR
+    elif lib == "Crystal":
+        part.part_typeProp = part_type_uris.CRYSTAL
+
+    return part
+
+
+def mpn_strategy(component: Component, part: bomFile.Part) -> bomFile.Part:
+    mpn = component.get_field("mpn")
+    if mpn is not None:
+        pn = bomFile.PartNumber(value=mpn.value)
+        part.part_numbersProp.add_part_number(pn)
+
+    return part
+
+
+def dpn_strategy_factory(dpn_mappings: Mapping[str, str]) -> StrategyCallable:
+    def dpn_strategy(component: Component, part: bomFile.Part) -> bomFile.Part:
+        for field_name, distributor in dpn_mappings:
+            s = component.get_field(field_name)
+            if s is not None:
+                pn = bomFile.PartNumber(value=s, distributor=distributor)
+                part.part_numbersProp.add_part_number(pn)
+
+        return part
+
+    return dpn_strategy
+
+
+class MakeBomStrategy():
+    def __init__(self, dpn_mappings: Mapping[str, str] = None):
+        self.dpn_mappings = dpn_mappings or {}
+        self.default_strategies = [
+            mpn_strategy,
+            part_type_strategy,
+            dpn_strategy_factory(self.dpn_mappings),
+        ]
+
+    def process_part(self, component: Component, part: bomFile.Part):
+        return self.default_process_part(component, part)
+
+    def default_process_part(self, component: Component, part: bomFile.Part):
+        return apply_strategies(component, part, self.default_strategies)
+
+
+def work(sch, out_file, strategy: MakeBomStrategy, new_mode, pretty):
+    if not new_mode:
+        bom = to_bom_xml(sch)
+        xml = ElementTree.tostring(bom, encoding="unicode")
+
+        if pretty:
+            xml = minidom.parseString(xml).toprettyxml(indent="  ")
+
+        print(xml, file=out_file)
+    else:
+        file = bomFile.BomFile()
+
+        parts = bomFile.PartList()
+        file.partsProp = parts
+
+        components = to_bom(sch)
+        for c in components:
+            part = bomFile.Part(id=c.ref)
+            part.schema_reference = c.ref
+            part.part_numbersProp = bomFile.PartNumberList()
+
+            part = strategy.process_part(c, part)
+
+            if len(part.part_numbersProp.get_part_number()) == 0:
+                part.part_numbersProp = None
+
+            if part is not None:
+                parts.add_part(part)
+
+        file.export(out_file, 0, name_="bom-file", namespacedef_="xmlns='http://purl.org/ee/bom-file'",
+                    pretty_print=pretty)
+
+
+def make_bom(sch_file: str, out_file: Optional[str], strategy_name: str, new_mode: bool, pretty: bool):
+    sch = read_schematics(sch_file)
+
+    import pydoc
+    make_bom_strategy_factory = pydoc.locate(strategy_name)
+
+    if not callable(make_bom_strategy_factory):
+        raise EeException("Not a callable: {}, is a {}".format(strategy_name, type(make_bom_strategy_factory)))
+
+    make_bom_strategy = make_bom_strategy_factory()  # type: MakeBomStrategy
+
+    if not isinstance(make_bom_strategy, MakeBomStrategy):
+        raise EeException("Not a MakeBomStrategy: {}, is a {}".format(strategy_name, type(make_bom_strategy)))
+
+    if out_file:
+        mk_parents(out_file)
+        with open(out_file, "w") as f:
+            work(sch, f, make_bom_strategy, new_mode, pretty)
+    else:
+        work(sch, sys.stdout, make_bom_strategy, new_mode, pretty)
diff --git a/src/ee/tools/kicad_make_bom.py b/src/ee/tools/kicad_make_bom.py
index 2600968..769ea0d 100644
--- a/src/ee/tools/kicad_make_bom.py
+++ b/src/ee/tools/kicad_make_bom.py
@@ -1,8 +1,6 @@
 import argparse
-import ee.kicad as kicad
-from ee.tools import mk_parents
-from xml.etree import ElementTree
-from xml.dom import minidom
+
+from ee.kicad.make_bom import make_bom
 
 pretty = True  # we always pretty print the XML
 
@@ -17,19 +15,13 @@ parser.add_argument("--out",
                     metavar="FILE",
                     help="The output file")
 
-args = parser.parse_args()
+parser.add_argument("--strategy",
+                    metavar="FUNC")
 
-sch = kicad.read_schematics(args.sch)
+args = parser.parse_args()
 
-bom = kicad.to_bom_xml(sch)
-xml = ElementTree.tostring(bom, encoding='unicode')
+new_mode = True
 
-if pretty:
-    xml = minidom.parseString(xml).toprettyxml(indent="  ")
+strategy = args.strategy if args.strategy else "ee.kicad.make_bom.MakeBomStrategy"
 
-if args.out:
-    mk_parents(args.out)
-    with open(args.out, "w") as f:
-        f.write(xml)
-else:
-    print(xml)
+make_bom(args.sch, args.out, strategy, new_mode, pretty)
diff --git a/src/ee/xml/__init__.py b/src/ee/xml/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/ee/xml/__init__.py
diff --git a/src/ee/xml/bomFile.py b/src/ee/xml/bomFile.py
new file mode 100644
index 0000000..d1967a6
--- /dev/null
+++ b/src/ee/xml/bomFile.py
@@ -0,0 +1,1326 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+#
+# Generated Thu Feb 21 08:05:29 2019 by generateDS.py version 2.30.11.
+# Python 3.7.2+ (default, Feb  2 2019, 14:31:48)  [GCC 8.2.0]
+#
+# Command line options:
+#   ('-f', '')
+#   ('--one-file-per-xsd', '')
+#   ('--output-directory', 'src/ee/xml')
+#   ('-m', '')
+#
+# Command line arguments:
+#   xsd/ee-bom.xsd
+#
+# Command line:
+#   env/bin/generateDS.py -f --one-file-per-xsd --output-directory="src/ee/xml" -m xsd/ee-bom.xsd
+#
+# Current working directory (os.getcwd()):
+#   ee-python
+#
+
+import sys
+import re as re_
+import base64
+import datetime as datetime_
+import warnings as warnings_
+try:
+    from lxml import etree as etree_
+except ImportError:
+    from xml.etree import ElementTree as etree_
+
+
+Validate_simpletypes_ = True
+if sys.version_info.major == 2:
+    BaseStrType_ = basestring
+else:
+    BaseStrType_ = str
+
+
+def parsexml_(infile, parser=None, **kwargs):
+    if parser is None:
+        # Use the lxml ElementTree compatible parser so that, e.g.,
+        #   we ignore comments.
+        try:
+            parser = etree_.ETCompatXMLParser()
+        except AttributeError:
+            # fallback to xml.etree
+            parser = etree_.XMLParser()
+    doc = etree_.parse(infile, parser=parser, **kwargs)
+    return doc
+
+def parsexmlstring_(instring, parser=None, **kwargs):
+    if parser is None:
+        # Use the lxml ElementTree compatible parser so that, e.g.,
+        #   we ignore comments.
+        try:
+            parser = etree_.ETCompatXMLParser()
+        except AttributeError:
+            # fallback to xml.etree
+            parser = etree_.XMLParser()
+    element = etree_.fromstring(instring, parser=parser, **kwargs)
+    return element
+
+#
+# Namespace prefix definition table (and other attributes, too)
+#
+# The module generatedsnamespaces, if it is importable, must contain
+# a dictionary named GeneratedsNamespaceDefs.  This Python dictionary
+# should map element type names (strings) to XML schema namespace prefix
+# definitions.  The export method for any class for which there is
+# a namespace prefix definition, will export that definition in the
+# XML representation of that element.  See the export method of
+# any generated element type class for a example of the use of this
+# table.
+# A sample table is:
+#
+#     # File: generatedsnamespaces.py
+#
+#     GenerateDSNamespaceDefs = {
+#         "ElementtypeA": "http://www.xxx.com/namespaceA",
+#         "ElementtypeB": "http://www.xxx.com/namespaceB",
+#     }
+#
+
+try:
+    from generatedsnamespaces import GenerateDSNamespaceDefs as GenerateDSNamespaceDefs_
+except ImportError:
+    GenerateDSNamespaceDefs_ = {}
+
+#
+# The root super-class for element type classes
+#
+# Calls to the methods in these classes are generated by generateDS.py.
+# You can replace these methods by re-implementing the following class
+#   in a module named generatedssuper.py.
+
+try:
+    from generatedssuper import GeneratedsSuper
+except ImportError as exp:
+    
+    class GeneratedsSuper(object):
+        tzoff_pattern = re_.compile(r'(\+|-)((0\d|1[0-3]):[0-5]\d|14:00)$')
+        class _FixedOffsetTZ(datetime_.tzinfo):
+            def __init__(self, offset, name):
+                self.__offset = datetime_.timedelta(minutes=offset)
+                self.__name = name
+            def utcoffset(self, dt):
+                return self.__offset
+            def tzname(self, dt):
+                return self.__name
+            def dst(self, dt):
+                return None
+        def gds_format_string(self, input_data, input_name=''):
+            return input_data
+        def gds_validate_string(self, input_data, node=None, input_name=''):
+            if not input_data:
+                return ''
+            else:
+                return input_data
+        def gds_format_base64(self, input_data, input_name=''):
+            return base64.b64encode(input_data)
+        def gds_validate_base64(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_integer(self, input_data, input_name=''):
+            return '%d' % input_data
+        def gds_validate_integer(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_integer_list(self, input_data, input_name=''):
+            return '%s' % ' '.join(input_data)
+        def gds_validate_integer_list(
+                self, input_data, node=None, input_name=''):
+            values = input_data.split()
+            for value in values:
+                try:
+                    int(value)
+                except (TypeError, ValueError):
+                    raise_parse_error(node, 'Requires sequence of integers')
+            return values
+        def gds_format_float(self, input_data, input_name=''):
+            return ('%.15f' % input_data).rstrip('0')
+        def gds_validate_float(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_float_list(self, input_data, input_name=''):
+            return '%s' % ' '.join(input_data)
+        def gds_validate_float_list(
+                self, input_data, node=None, input_name=''):
+            values = input_data.split()
+            for value in values:
+                try:
+                    float(value)
+                except (TypeError, ValueError):
+                    raise_parse_error(node, 'Requires sequence of floats')
+            return values
+        def gds_format_double(self, input_data, input_name=''):
+            return '%e' % input_data
+        def gds_validate_double(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_double_list(self, input_data, input_name=''):
+            return '%s' % ' '.join(input_data)
+        def gds_validate_double_list(
+                self, input_data, node=None, input_name=''):
+            values = input_data.split()
+            for value in values:
+                try:
+                    float(value)
+                except (TypeError, ValueError):
+                    raise_parse_error(node, 'Requires sequence of doubles')
+            return values
+        def gds_format_boolean(self, input_data, input_name=''):
+            return ('%s' % input_data).lower()
+        def gds_validate_boolean(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_boolean_list(self, input_data, input_name=''):
+            return '%s' % ' '.join(input_data)
+        def gds_validate_boolean_list(
+                self, input_data, node=None, input_name=''):
+            values = input_data.split()
+            for value in values:
+                if value not in ('true', '1', 'false', '0', ):
+                    raise_parse_error(
+                        node,
+                        'Requires sequence of booleans '
+                        '("true", "1", "false", "0")')
+            return values
+        def gds_validate_datetime(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_datetime(self, input_data, input_name=''):
+            if input_data.microsecond == 0:
+                _svalue = '%04d-%02d-%02dT%02d:%02d:%02d' % (
+                    input_data.year,
+                    input_data.month,
+                    input_data.day,
+                    input_data.hour,
+                    input_data.minute,
+                    input_data.second,
+                )
+            else:
+                _svalue = '%04d-%02d-%02dT%02d:%02d:%02d.%s' % (
+                    input_data.year,
+                    input_data.month,
+                    input_data.day,
+                    input_data.hour,
+                    input_data.minute,
+                    input_data.second,
+                    ('%f' % (float(input_data.microsecond) / 1000000))[2:],
+                )
+            if input_data.tzinfo is not None:
+                tzoff = input_data.tzinfo.utcoffset(input_data)
+                if tzoff is not None:
+                    total_seconds = tzoff.seconds + (86400 * tzoff.days)
+                    if total_seconds == 0:
+                        _svalue += 'Z'
+                    else:
+                        if total_seconds < 0:
+                            _svalue += '-'
+                            total_seconds *= -1
+                        else:
+                            _svalue += '+'
+                        hours = total_seconds // 3600
+                        minutes = (total_seconds - (hours * 3600)) // 60
+                        _svalue += '{0:02d}:{1:02d}'.format(hours, minutes)
+            return _svalue
+        @classmethod
+        def gds_parse_datetime(cls, input_data):
+            tz = None
+            if input_data[-1] == 'Z':
+                tz = GeneratedsSuper._FixedOffsetTZ(0, 'UTC')
+                input_data = input_data[:-1]
+            else:
+                results = GeneratedsSuper.tzoff_pattern.search(input_data)
+                if results is not None:
+                    tzoff_parts = results.group(2).split(':')
+                    tzoff = int(tzoff_parts[0]) * 60 + int(tzoff_parts[1])
+                    if results.group(1) == '-':
+                        tzoff *= -1
+                    tz = GeneratedsSuper._FixedOffsetTZ(
+                        tzoff, results.group(0))
+                    input_data = input_data[:-6]
+            time_parts = input_data.split('.')
+            if len(time_parts) > 1:
+                micro_seconds = int(float('0.' + time_parts[1]) * 1000000)
+                input_data = '%s.%s' % (
+                    time_parts[0], "{}".format(micro_seconds).rjust(6, "0"), )
+                dt = datetime_.datetime.strptime(
+                    input_data, '%Y-%m-%dT%H:%M:%S.%f')
+            else:
+                dt = datetime_.datetime.strptime(
+                    input_data, '%Y-%m-%dT%H:%M:%S')
+            dt = dt.replace(tzinfo=tz)
+            return dt
+        def gds_validate_date(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_date(self, input_data, input_name=''):
+            _svalue = '%04d-%02d-%02d' % (
+                input_data.year,
+                input_data.month,
+                input_data.day,
+            )
+            try:
+                if input_data.tzinfo is not None:
+                    tzoff = input_data.tzinfo.utcoffset(input_data)
+                    if tzoff is not None:
+                        total_seconds = tzoff.seconds + (86400 * tzoff.days)
+                        if total_seconds == 0:
+                            _svalue += 'Z'
+                        else:
+                            if total_seconds < 0:
+                                _svalue += '-'
+                                total_seconds *= -1
+                            else:
+                                _svalue += '+'
+                            hours = total_seconds // 3600
+                            minutes = (total_seconds - (hours * 3600)) // 60
+                            _svalue += '{0:02d}:{1:02d}'.format(
+                                hours, minutes)
+            except AttributeError:
+                pass
+            return _svalue
+        @classmethod
+        def gds_parse_date(cls, input_data):
+            tz = None
+            if input_data[-1] == 'Z':
+                tz = GeneratedsSuper._FixedOffsetTZ(0, 'UTC')
+                input_data = input_data[:-1]
+            else:
+                results = GeneratedsSuper.tzoff_pattern.search(input_data)
+                if results is not None:
+                    tzoff_parts = results.group(2).split(':')
+                    tzoff = int(tzoff_parts[0]) * 60 + int(tzoff_parts[1])
+                    if results.group(1) == '-':
+                        tzoff *= -1
+                    tz = GeneratedsSuper._FixedOffsetTZ(
+                        tzoff, results.group(0))
+                    input_data = input_data[:-6]
+            dt = datetime_.datetime.strptime(input_data, '%Y-%m-%d')
+            dt = dt.replace(tzinfo=tz)
+            return dt.date()
+        def gds_validate_time(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_time(self, input_data, input_name=''):
+            if input_data.microsecond == 0:
+                _svalue = '%02d:%02d:%02d' % (
+                    input_data.hour,
+                    input_data.minute,
+                    input_data.second,
+                )
+            else:
+                _svalue = '%02d:%02d:%02d.%s' % (
+                    input_data.hour,
+                    input_data.minute,
+                    input_data.second,
+                    ('%f' % (float(input_data.microsecond) / 1000000))[2:],
+                )
+            if input_data.tzinfo is not None:
+                tzoff = input_data.tzinfo.utcoffset(input_data)
+                if tzoff is not None:
+                    total_seconds = tzoff.seconds + (86400 * tzoff.days)
+                    if total_seconds == 0:
+                        _svalue += 'Z'
+                    else:
+                        if total_seconds < 0:
+                            _svalue += '-'
+                            total_seconds *= -1
+                        else:
+                            _svalue += '+'
+                        hours = total_seconds // 3600
+                        minutes = (total_seconds - (hours * 3600)) // 60
+                        _svalue += '{0:02d}:{1:02d}'.format(hours, minutes)
+            return _svalue
+        def gds_validate_simple_patterns(self, patterns, target):
+            # pat is a list of lists of strings/patterns.
+            # The target value must match at least one of the patterns
+            # in order for the test to succeed.
+            found1 = True
+            for patterns1 in patterns:
+                found2 = False
+                for patterns2 in patterns1:
+                    mo = re_.search(patterns2, target)
+                    if mo is not None and len(mo.group(0)) == len(target):
+                        found2 = True
+                        break
+                if not found2:
+                    found1 = False
+                    break
+            return found1
+        @classmethod
+        def gds_parse_time(cls, input_data):
+            tz = None
+            if input_data[-1] == 'Z':
+                tz = GeneratedsSuper._FixedOffsetTZ(0, 'UTC')
+                input_data = input_data[:-1]
+            else:
+                results = GeneratedsSuper.tzoff_pattern.search(input_data)
+                if results is not None:
+                    tzoff_parts = results.group(2).split(':')
+                    tzoff = int(tzoff_parts[0]) * 60 + int(tzoff_parts[1])
+                    if results.group(1) == '-':
+                        tzoff *= -1
+                    tz = GeneratedsSuper._FixedOffsetTZ(
+                        tzoff, results.group(0))
+                    input_data = input_data[:-6]
+            if len(input_data.split('.')) > 1:
+                dt = datetime_.datetime.strptime(input_data, '%H:%M:%S.%f')
+            else:
+                dt = datetime_.datetime.strptime(input_data, '%H:%M:%S')
+            dt = dt.replace(tzinfo=tz)
+            return dt.time()
+        def gds_str_lower(self, instring):
+            return instring.lower()
+        def get_path_(self, node):
+            path_list = []
+            self.get_path_list_(node, path_list)
+            path_list.reverse()
+            path = '/'.join(path_list)
+            return path
+        Tag_strip_pattern_ = re_.compile(r'\{.*\}')
+        def get_path_list_(self, node, path_list):
+            if node is None:
+                return
+            tag = GeneratedsSuper.Tag_strip_pattern_.sub('', node.tag)
+            if tag:
+                path_list.append(tag)
+            self.get_path_list_(node.getparent(), path_list)
+        def get_class_obj_(self, node, default_class=None):
+            class_obj1 = default_class
+            if 'xsi' in node.nsmap:
+                classname = node.get('{%s}type' % node.nsmap['xsi'])
+                if classname is not None:
+                    names = classname.split(':')
+                    if len(names) == 2:
+                        classname = names[1]
+                    class_obj2 = globals().get(classname)
+                    if class_obj2 is not None:
+                        class_obj1 = class_obj2
+            return class_obj1
+        def gds_build_any(self, node, type_name=None):
+            return None
+        @classmethod
+        def gds_reverse_node_mapping(cls, mapping):
+            return dict(((v, k) for k, v in mapping.items()))
+        @staticmethod
+        def gds_encode(instring):
+            if sys.version_info.major == 2:
+                if ExternalEncoding:
+                    encoding = ExternalEncoding
+                else:
+                    encoding = 'utf-8'
+                return instring.encode(encoding)
+            else:
+                return instring
+        @staticmethod
+        def convert_unicode(instring):
+            if isinstance(instring, str):
+                result = quote_xml(instring)
+            elif sys.version_info.major == 2 and isinstance(instring, unicode):
+                result = quote_xml(instring).encode('utf8')
+            else:
+                result = GeneratedsSuper.gds_encode(str(instring))
+            return result
+        def __eq__(self, other):
+            if type(self) != type(other):
+                return False
+            return self.__dict__ == other.__dict__
+        def __ne__(self, other):
+            return not self.__eq__(other)
+    
+    def getSubclassFromModule_(module, class_):
+        '''Get the subclass of a class from a specific module.'''
+        name = class_.__name__ + 'Sub'
+        if hasattr(module, name):
+            return getattr(module, name)
+        else:
+            return None
+
+
+#
+# If you have installed IPython you can uncomment and use the following.
+# IPython is available from http://ipython.scipy.org/.
+#
+
+## from IPython.Shell import IPShellEmbed
+## args = ''
+## ipshell = IPShellEmbed(args,
+##     banner = 'Dropping into IPython',
+##     exit_msg = 'Leaving Interpreter, back to program.')
+
+# Then use the following line where and when you want to drop into the
+# IPython shell:
+#    ipshell('<some message> -- Entering ipshell.\nHit Ctrl-D to exit')
+
+#
+# Globals
+#
+
+ExternalEncoding = ''
+Tag_pattern_ = re_.compile(r'({.*})?(.*)')
+String_cleanup_pat_ = re_.compile(r"[\n\r\s]+")
+Namespace_extract_pat_ = re_.compile(r'{(.*)}(.*)')
+CDATA_pattern_ = re_.compile(r"<!\[CDATA\[.*?\]\]>", re_.DOTALL)
+
+# Change this to redirect the generated superclass module to use a
+# specific subclass module.
+CurrentSubclassModule_ = None
+
+#
+# Support/utility functions.
+#
+
+
+def showIndent(outfile, level, pretty_print=True):
+    if pretty_print:
+        for idx in range(level):
+            outfile.write('    ')
+
+
+def quote_xml(inStr):
+    "Escape markup chars, but do not modify CDATA sections."
+    if not inStr:
+        return ''
+    s1 = (isinstance(inStr, BaseStrType_) and inStr or '%s' % inStr)
+    s2 = ''
+    pos = 0
+    matchobjects = CDATA_pattern_.finditer(s1)
+    for mo in matchobjects:
+        s3 = s1[pos:mo.start()]
+        s2 += quote_xml_aux(s3)
+        s2 += s1[mo.start():mo.end()]
+        pos = mo.end()
+    s3 = s1[pos:]
+    s2 += quote_xml_aux(s3)
+    return s2
+
+
+def quote_xml_aux(inStr):
+    s1 = inStr.replace('&', '&amp;')
+    s1 = s1.replace('<', '&lt;')
+    s1 = s1.replace('>', '&gt;')
+    return s1
+
+
+def quote_attrib(inStr):
+    s1 = (isinstance(inStr, BaseStrType_) and inStr or '%s' % inStr)
+    s1 = s1.replace('&', '&amp;')
+    s1 = s1.replace('<', '&lt;')
+    s1 = s1.replace('>', '&gt;')
+    if '"' in s1:
+        if "'" in s1:
+            s1 = '"%s"' % s1.replace('"', "&quot;")
+        else:
+            s1 = "'%s'" % s1
+    else:
+        s1 = '"%s"' % s1
+    return s1
+
+
+def quote_python(inStr):
+    s1 = inStr
+    if s1.find("'") == -1:
+        if s1.find('\n') == -1:
+            return "'%s'" % s1
+        else:
+            return "'''%s'''" % s1
+    else:
+        if s1.find('"') != -1:
+            s1 = s1.replace('"', '\\"')
+        if s1.find('\n') == -1:
+            return '"%s"' % s1
+        else:
+            return '"""%s"""' % s1
+
+
+def get_all_text_(node):
+    if node.text is not None:
+        text = node.text
+    else:
+        text = ''
+    for child in node:
+        if child.tail is not None:
+            text += child.tail
+    return text
+
+
+def find_attr_value_(attr_name, node):
+    attrs = node.attrib
+    attr_parts = attr_name.split(':')
+    value = None
+    if len(attr_parts) == 1:
+        value = attrs.get(attr_name)
+    elif len(attr_parts) == 2:
+        prefix, name = attr_parts
+        namespace = node.nsmap.get(prefix)
+        if namespace is not None:
+            value = attrs.get('{%s}%s' % (namespace, name, ))
+    return value
+
+
+class GDSParseError(Exception):
+    pass
+
+
+def raise_parse_error(node, msg):
+    msg = '%s (element %s/line %d)' % (msg, node.tag, node.sourceline, )
+    raise GDSParseError(msg)
+
+
+class MixedContainer:
+    # Constants for category:
+    CategoryNone = 0
+    CategoryText = 1
+    CategorySimple = 2
+    CategoryComplex = 3
+    # Constants for content_type:
+    TypeNone = 0
+    TypeText = 1
+    TypeString = 2
+    TypeInteger = 3
+    TypeFloat = 4
+    TypeDecimal = 5
+    TypeDouble = 6
+    TypeBoolean = 7
+    TypeBase64 = 8
+    def __init__(self, category, content_type, name, value):
+        self.category = category
+        self.content_type = content_type
+        self.name = name
+        self.value = value
+    def getCategory(self):
+        return self.category
+    def getContenttype(self, content_type):
+        return self.content_type
+    def getValue(self):
+        return self.value
+    def getName(self):
+        return self.name
+    def export(self, outfile, level, name, namespace,
+               pretty_print=True):
+        if self.category == MixedContainer.CategoryText:
+            # Prevent exporting empty content as empty lines.
+            if self.value.strip():
+                outfile.write(self.value)
+        elif self.category == MixedContainer.CategorySimple:
+            self.exportSimple(outfile, level, name)
+        else:    # category == MixedContainer.CategoryComplex
+            self.value.export(
+                outfile, level, namespace, name_=name,
+                pretty_print=pretty_print)
+    def exportSimple(self, outfile, level, name):
+        if self.content_type == MixedContainer.TypeString:
+            outfile.write('<%s>%s</%s>' % (
+                self.name, self.value, self.name))
+        elif self.content_type == MixedContainer.TypeInteger or \
+                self.content_type == MixedContainer.TypeBoolean:
+            outfile.write('<%s>%d</%s>' % (
+                self.name, self.value, self.name))
+        elif self.content_type == MixedContainer.TypeFloat or \
+                self.content_type == MixedContainer.TypeDecimal:
+            outfile.write('<%s>%f</%s>' % (
+                self.name, self.value, self.name))
+        elif self.content_type == MixedContainer.TypeDouble:
+            outfile.write('<%s>%g</%s>' % (
+                self.name, self.value, self.name))
+        elif self.content_type == MixedContainer.TypeBase64:
+            outfile.write('<%s>%s</%s>' % (
+                self.name,
+                base64.b64encode(self.value),
+                self.name))
+    def to_etree(self, element):
+        if self.category == MixedContainer.CategoryText:
+            # Prevent exporting empty content as empty lines.
+            if self.value.strip():
+                if len(element) > 0:
+                    if element[-1].tail is None:
+                        element[-1].tail = self.value
+                    else:
+                        element[-1].tail += self.value
+                else:
+                    if element.text is None:
+                        element.text = self.value
+                    else:
+                        element.text += self.value
+        elif self.category == MixedContainer.CategorySimple:
+            subelement = etree_.SubElement(
+                element, '%s' % self.name)
+            subelement.text = self.to_etree_simple()
+        else:    # category == MixedContainer.CategoryComplex
+            self.value.to_etree(element)
+    def to_etree_simple(self):
+        if self.content_type == MixedContainer.TypeString:
+            text = self.value
+        elif (self.content_type == MixedContainer.TypeInteger or
+                self.content_type == MixedContainer.TypeBoolean):
+            text = '%d' % self.value
+        elif (self.content_type == MixedContainer.TypeFloat or
+                self.content_type == MixedContainer.TypeDecimal):
+            text = '%f' % self.value
+        elif self.content_type == MixedContainer.TypeDouble:
+            text = '%g' % self.value
+        elif self.content_type == MixedContainer.TypeBase64:
+            text = '%s' % base64.b64encode(self.value)
+        return text
+    def exportLiteral(self, outfile, level, name):
+        if self.category == MixedContainer.CategoryText:
+            showIndent(outfile, level)
+            outfile.write(
+                'model_.MixedContainer(%d, %d, "%s", "%s"),\n' % (
+                    self.category, self.content_type,
+                    self.name, self.value))
+        elif self.category == MixedContainer.CategorySimple:
+            showIndent(outfile, level)
+            outfile.write(
+                'model_.MixedContainer(%d, %d, "%s", "%s"),\n' % (
+                    self.category, self.content_type,
+                    self.name, self.value))
+        else:    # category == MixedContainer.CategoryComplex
+            showIndent(outfile, level)
+            outfile.write(
+                'model_.MixedContainer(%d, %d, "%s",\n' % (
+                    self.category, self.content_type, self.name,))
+            self.value.exportLiteral(outfile, level + 1)
+            showIndent(outfile, level)
+            outfile.write(')\n')
+
+
+class MemberSpec_(object):
+    def __init__(self, name='', data_type='', container=0,
+            optional=0, child_attrs=None, choice=None):
+        self.name = name
+        self.data_type = data_type
+        self.container = container
+        self.child_attrs = child_attrs
+        self.choice = choice
+        self.optional = optional
+    def set_name(self, name): self.name = name
+    def get_name(self): return self.name
+    def set_data_type(self, data_type): self.data_type = data_type
+    def get_data_type_chain(self): return self.data_type
+    def get_data_type(self):
+        if isinstance(self.data_type, list):
+            if len(self.data_type) > 0:
+                return self.data_type[-1]
+            else:
+                return 'xs:string'
+        else:
+            return self.data_type
+    def set_container(self, container): self.container = container
+    def get_container(self): return self.container
+    def set_child_attrs(self, child_attrs): self.child_attrs = child_attrs
+    def get_child_attrs(self): return self.child_attrs
+    def set_choice(self, choice): self.choice = choice
+    def get_choice(self): return self.choice
+    def set_optional(self, optional): self.optional = optional
+    def get_optional(self): return self.optional
+
+
+def _cast(typ, value):
+    if typ is None or value is None:
+        return value
+    return typ(value)
+
+#
+# Data representation classes.
+#
+
+
+class BomFile(GeneratedsSuper):
+    subclass = None
+    superclass = None
+    def __init__(self, parts=None, **kwargs_):
+        self.original_tagname_ = None
+        self.parent_object_ = kwargs_.get('parent_object_')
+        self.parts = parts
+    def factory(*args_, **kwargs_):
+        if CurrentSubclassModule_ is not None:
+            subclass = getSubclassFromModule_(
+                CurrentSubclassModule_, BomFile)
+            if subclass is not None:
+                return subclass(*args_, **kwargs_)
+        if BomFile.subclass:
+            return BomFile.subclass(*args_, **kwargs_)
+        else:
+            return BomFile(*args_, **kwargs_)
+    factory = staticmethod(factory)
+    def get_parts(self):
+        return self.parts
+    def set_parts(self, parts):
+        self.parts = parts
+    partsProp = property(get_parts, set_parts)
+    def hasContent_(self):
+        if (
+            self.parts is not None
+        ):
+            return True
+        else:
+            return False
+    def export(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='BomFile', pretty_print=True):
+        imported_ns_def_ = GenerateDSNamespaceDefs_.get('BomFile')
+        if imported_ns_def_ is not None:
+            namespacedef_ = imported_ns_def_
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.original_tagname_ is not None:
+            name_ = self.original_tagname_
+        showIndent(outfile, level, pretty_print)
+        outfile.write('<%s%s%s' % (namespaceprefix_, name_, namespacedef_ and ' ' + namespacedef_ or '', ))
+        already_processed = set()
+        self.exportAttributes(outfile, level, already_processed, namespaceprefix_, name_='BomFile')
+        if self.hasContent_():
+            outfile.write('>%s' % (eol_, ))
+            self.exportChildren(outfile, level + 1, namespaceprefix_, namespacedef_, name_='BomFile', pretty_print=pretty_print)
+            showIndent(outfile, level, pretty_print)
+            outfile.write('</%s%s>%s' % (namespaceprefix_, name_, eol_))
+        else:
+            outfile.write('/>%s' % (eol_, ))
+    def exportAttributes(self, outfile, level, already_processed, namespaceprefix_='', name_='BomFile'):
+        pass
+    def exportChildren(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='BomFile', fromsubclass_=False, pretty_print=True):
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.parts is not None:
+            self.parts.export(outfile, level, namespaceprefix_, namespacedef_='', name_='parts', pretty_print=pretty_print)
+    def build(self, node):
+        already_processed = set()
+        self.buildAttributes(node, node.attrib, already_processed)
+        for child in node:
+            nodeName_ = Tag_pattern_.match(child.tag).groups()[-1]
+            self.buildChildren(child, node, nodeName_)
+        return self
+    def buildAttributes(self, node, attrs, already_processed):
+        pass
+    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
+        if nodeName_ == 'parts':
+            obj_ = PartList.factory(parent_object_=self)
+            obj_.build(child_)
+            self.parts = obj_
+            obj_.original_tagname_ = 'parts'
+# end class BomFile
+
+
+class Part(GeneratedsSuper):
+    subclass = None
+    superclass = None
+    def __init__(self, id=None, schema_reference=None, part_type=None, part_numbers=None, **kwargs_):
+        self.original_tagname_ = None
+        self.parent_object_ = kwargs_.get('parent_object_')
+        self.id = _cast(None, id)
+        self.schema_reference = schema_reference
+        self.part_type = part_type
+        self.part_numbers = part_numbers
+    def factory(*args_, **kwargs_):
+        if CurrentSubclassModule_ is not None:
+            subclass = getSubclassFromModule_(
+                CurrentSubclassModule_, Part)
+            if subclass is not None:
+                return subclass(*args_, **kwargs_)
+        if Part.subclass:
+            return Part.subclass(*args_, **kwargs_)
+        else:
+            return Part(*args_, **kwargs_)
+    factory = staticmethod(factory)
+    def get_schema_reference(self):
+        return self.schema_reference
+    def set_schema_reference(self, schema_reference):
+        self.schema_reference = schema_reference
+    schema_referenceProp = property(get_schema_reference, set_schema_reference)
+    def get_part_type(self):
+        return self.part_type
+    def set_part_type(self, part_type):
+        self.part_type = part_type
+    part_typeProp = property(get_part_type, set_part_type)
+    def get_part_numbers(self):
+        return self.part_numbers
+    def set_part_numbers(self, part_numbers):
+        self.part_numbers = part_numbers
+    part_numbersProp = property(get_part_numbers, set_part_numbers)
+    def get_id(self):
+        return self.id
+    def set_id(self, id):
+        self.id = id
+    idProp = property(get_id, set_id)
+    def hasContent_(self):
+        if (
+            self.schema_reference is not None or
+            self.part_type is not None or
+            self.part_numbers is not None
+        ):
+            return True
+        else:
+            return False
+    def export(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='Part', pretty_print=True):
+        imported_ns_def_ = GenerateDSNamespaceDefs_.get('Part')
+        if imported_ns_def_ is not None:
+            namespacedef_ = imported_ns_def_
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.original_tagname_ is not None:
+            name_ = self.original_tagname_
+        showIndent(outfile, level, pretty_print)
+        outfile.write('<%s%s%s' % (namespaceprefix_, name_, namespacedef_ and ' ' + namespacedef_ or '', ))
+        already_processed = set()
+        self.exportAttributes(outfile, level, already_processed, namespaceprefix_, name_='Part')
+        if self.hasContent_():
+            outfile.write('>%s' % (eol_, ))
+            self.exportChildren(outfile, level + 1, namespaceprefix_, namespacedef_, name_='Part', pretty_print=pretty_print)
+            showIndent(outfile, level, pretty_print)
+            outfile.write('</%s%s>%s' % (namespaceprefix_, name_, eol_))
+        else:
+            outfile.write('/>%s' % (eol_, ))
+    def exportAttributes(self, outfile, level, already_processed, namespaceprefix_='', name_='Part'):
+        if self.id is not None and 'id' not in already_processed:
+            already_processed.add('id')
+            outfile.write(' id=%s' % (self.gds_encode(self.gds_format_string(quote_attrib(self.id), input_name='id')), ))
+    def exportChildren(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='Part', fromsubclass_=False, pretty_print=True):
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.schema_reference is not None:
+            showIndent(outfile, level, pretty_print)
+            outfile.write('<%sschema-reference>%s</%sschema-reference>%s' % (namespaceprefix_ , self.gds_encode(self.gds_format_string(quote_xml(self.schema_reference), input_name='schema-reference')), namespaceprefix_ , eol_))
+        if self.part_type is not None:
+            showIndent(outfile, level, pretty_print)
+            outfile.write('<%spart-type>%s</%spart-type>%s' % (namespaceprefix_ , self.gds_encode(self.gds_format_string(quote_xml(self.part_type), input_name='part-type')), namespaceprefix_ , eol_))
+        if self.part_numbers is not None:
+            self.part_numbers.export(outfile, level, namespaceprefix_, namespacedef_='', name_='part-numbers', pretty_print=pretty_print)
+    def build(self, node):
+        already_processed = set()
+        self.buildAttributes(node, node.attrib, already_processed)
+        for child in node:
+            nodeName_ = Tag_pattern_.match(child.tag).groups()[-1]
+            self.buildChildren(child, node, nodeName_)
+        return self
+    def buildAttributes(self, node, attrs, already_processed):
+        value = find_attr_value_('id', node)
+        if value is not None and 'id' not in already_processed:
+            already_processed.add('id')
+            self.id = value
+    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
+        if nodeName_ == 'schema-reference':
+            schema_reference_ = child_.text
+            schema_reference_ = self.gds_validate_string(schema_reference_, node, 'schema_reference')
+            self.schema_reference = schema_reference_
+        elif nodeName_ == 'part-type':
+            part_type_ = child_.text
+            part_type_ = self.gds_validate_string(part_type_, node, 'part_type')
+            self.part_type = part_type_
+        elif nodeName_ == 'part-numbers':
+            obj_ = PartNumberList.factory(parent_object_=self)
+            obj_.build(child_)
+            self.part_numbers = obj_
+            obj_.original_tagname_ = 'part-numbers'
+# end class Part
+
+
+class PartList(GeneratedsSuper):
+    subclass = None
+    superclass = None
+    def __init__(self, part=None, **kwargs_):
+        self.original_tagname_ = None
+        self.parent_object_ = kwargs_.get('parent_object_')
+        if part is None:
+            self.part = []
+        else:
+            self.part = part
+    def factory(*args_, **kwargs_):
+        if CurrentSubclassModule_ is not None:
+            subclass = getSubclassFromModule_(
+                CurrentSubclassModule_, PartList)
+            if subclass is not None:
+                return subclass(*args_, **kwargs_)
+        if PartList.subclass:
+            return PartList.subclass(*args_, **kwargs_)
+        else:
+            return PartList(*args_, **kwargs_)
+    factory = staticmethod(factory)
+    def get_part(self):
+        return self.part
+    def set_part(self, part):
+        self.part = part
+    def add_part(self, value):
+        self.part.append(value)
+    def add_part(self, value):
+        self.part.append(value)
+    def insert_part_at(self, index, value):
+        self.part.insert(index, value)
+    def replace_part_at(self, index, value):
+        self.part[index] = value
+    partProp = property(get_part, set_part)
+    def hasContent_(self):
+        if (
+            self.part
+        ):
+            return True
+        else:
+            return False
+    def export(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='PartList', pretty_print=True):
+        imported_ns_def_ = GenerateDSNamespaceDefs_.get('PartList')
+        if imported_ns_def_ is not None:
+            namespacedef_ = imported_ns_def_
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.original_tagname_ is not None:
+            name_ = self.original_tagname_
+        showIndent(outfile, level, pretty_print)
+        outfile.write('<%s%s%s' % (namespaceprefix_, name_, namespacedef_ and ' ' + namespacedef_ or '', ))
+        already_processed = set()
+        self.exportAttributes(outfile, level, already_processed, namespaceprefix_, name_='PartList')
+        if self.hasContent_():
+            outfile.write('>%s' % (eol_, ))
+            self.exportChildren(outfile, level + 1, namespaceprefix_, namespacedef_, name_='PartList', pretty_print=pretty_print)
+            showIndent(outfile, level, pretty_print)
+            outfile.write('</%s%s>%s' % (namespaceprefix_, name_, eol_))
+        else:
+            outfile.write('/>%s' % (eol_, ))
+    def exportAttributes(self, outfile, level, already_processed, namespaceprefix_='', name_='PartList'):
+        pass
+    def exportChildren(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='PartList', fromsubclass_=False, pretty_print=True):
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        for part_ in self.part:
+            part_.export(outfile, level, namespaceprefix_, namespacedef_='', name_='part', pretty_print=pretty_print)
+    def build(self, node):
+        already_processed = set()
+        self.buildAttributes(node, node.attrib, already_processed)
+        for child in node:
+            nodeName_ = Tag_pattern_.match(child.tag).groups()[-1]
+            self.buildChildren(child, node, nodeName_)
+        return self
+    def buildAttributes(self, node, attrs, already_processed):
+        pass
+    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
+        if nodeName_ == 'part':
+            obj_ = Part.factory(parent_object_=self)
+            obj_.build(child_)
+            self.part.append(obj_)
+            obj_.original_tagname_ = 'part'
+# end class PartList
+
+
+class PartNumber(GeneratedsSuper):
+    subclass = None
+    superclass = None
+    def __init__(self, value=None, distributor=None, **kwargs_):
+        self.original_tagname_ = None
+        self.parent_object_ = kwargs_.get('parent_object_')
+        self.value = value
+        self.distributor = distributor
+    def factory(*args_, **kwargs_):
+        if CurrentSubclassModule_ is not None:
+            subclass = getSubclassFromModule_(
+                CurrentSubclassModule_, PartNumber)
+            if subclass is not None:
+                return subclass(*args_, **kwargs_)
+        if PartNumber.subclass:
+            return PartNumber.subclass(*args_, **kwargs_)
+        else:
+            return PartNumber(*args_, **kwargs_)
+    factory = staticmethod(factory)
+    def get_value(self):
+        return self.value
+    def set_value(self, value):
+        self.value = value
+    valueProp = property(get_value, set_value)
+    def get_distributor(self):
+        return self.distributor
+    def set_distributor(self, distributor):
+        self.distributor = distributor
+    distributorProp = property(get_distributor, set_distributor)
+    def hasContent_(self):
+        if (
+            self.value is not None or
+            self.distributor is not None
+        ):
+            return True
+        else:
+            return False
+    def export(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='PartNumber', pretty_print=True):
+        imported_ns_def_ = GenerateDSNamespaceDefs_.get('PartNumber')
+        if imported_ns_def_ is not None:
+            namespacedef_ = imported_ns_def_
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.original_tagname_ is not None:
+            name_ = self.original_tagname_
+        showIndent(outfile, level, pretty_print)
+        outfile.write('<%s%s%s' % (namespaceprefix_, name_, namespacedef_ and ' ' + namespacedef_ or '', ))
+        already_processed = set()
+        self.exportAttributes(outfile, level, already_processed, namespaceprefix_, name_='PartNumber')
+        if self.hasContent_():
+            outfile.write('>%s' % (eol_, ))
+            self.exportChildren(outfile, level + 1, namespaceprefix_, namespacedef_, name_='PartNumber', pretty_print=pretty_print)
+            showIndent(outfile, level, pretty_print)
+            outfile.write('</%s%s>%s' % (namespaceprefix_, name_, eol_))
+        else:
+            outfile.write('/>%s' % (eol_, ))
+    def exportAttributes(self, outfile, level, already_processed, namespaceprefix_='', name_='PartNumber'):
+        pass
+    def exportChildren(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='PartNumber', fromsubclass_=False, pretty_print=True):
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.value is not None:
+            showIndent(outfile, level, pretty_print)
+            outfile.write('<%svalue>%s</%svalue>%s' % (namespaceprefix_ , self.gds_encode(self.gds_format_string(quote_xml(self.value), input_name='value')), namespaceprefix_ , eol_))
+        if self.distributor is not None:
+            showIndent(outfile, level, pretty_print)
+            outfile.write('<%sdistributor>%s</%sdistributor>%s' % (namespaceprefix_ , self.gds_encode(self.gds_format_string(quote_xml(self.distributor), input_name='distributor')), namespaceprefix_ , eol_))
+    def build(self, node):
+        already_processed = set()
+        self.buildAttributes(node, node.attrib, already_processed)
+        for child in node:
+            nodeName_ = Tag_pattern_.match(child.tag).groups()[-1]
+            self.buildChildren(child, node, nodeName_)
+        return self
+    def buildAttributes(self, node, attrs, already_processed):
+        pass
+    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
+        if nodeName_ == 'value':
+            value_ = child_.text
+            value_ = self.gds_validate_string(value_, node, 'value')
+            self.value = value_
+        elif nodeName_ == 'distributor':
+            distributor_ = child_.text
+            distributor_ = self.gds_validate_string(distributor_, node, 'distributor')
+            self.distributor = distributor_
+# end class PartNumber
+
+
+class PartNumberList(GeneratedsSuper):
+    subclass = None
+    superclass = None
+    def __init__(self, part_number=None, **kwargs_):
+        self.original_tagname_ = None
+        self.parent_object_ = kwargs_.get('parent_object_')
+        if part_number is None:
+            self.part_number = []
+        else:
+            self.part_number = part_number
+    def factory(*args_, **kwargs_):
+        if CurrentSubclassModule_ is not None:
+            subclass = getSubclassFromModule_(
+                CurrentSubclassModule_, PartNumberList)
+            if subclass is not None:
+                return subclass(*args_, **kwargs_)
+        if PartNumberList.subclass:
+            return PartNumberList.subclass(*args_, **kwargs_)
+        else:
+            return PartNumberList(*args_, **kwargs_)
+    factory = staticmethod(factory)
+    def get_part_number(self):
+        return self.part_number
+    def set_part_number(self, part_number):
+        self.part_number = part_number
+    def add_part_number(self, value):
+        self.part_number.append(value)
+    def add_part_number(self, value):
+        self.part_number.append(value)
+    def insert_part_number_at(self, index, value):
+        self.part_number.insert(index, value)
+    def replace_part_number_at(self, index, value):
+        self.part_number[index] = value
+    part_numberProp = property(get_part_number, set_part_number)
+    def hasContent_(self):
+        if (
+            self.part_number
+        ):
+            return True
+        else:
+            return False
+    def export(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='PartNumberList', pretty_print=True):
+        imported_ns_def_ = GenerateDSNamespaceDefs_.get('PartNumberList')
+        if imported_ns_def_ is not None:
+            namespacedef_ = imported_ns_def_
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.original_tagname_ is not None:
+            name_ = self.original_tagname_
+        showIndent(outfile, level, pretty_print)
+        outfile.write('<%s%s%s' % (namespaceprefix_, name_, namespacedef_ and ' ' + namespacedef_ or '', ))
+        already_processed = set()
+        self.exportAttributes(outfile, level, already_processed, namespaceprefix_, name_='PartNumberList')
+        if self.hasContent_():
+            outfile.write('>%s' % (eol_, ))
+            self.exportChildren(outfile, level + 1, namespaceprefix_, namespacedef_, name_='PartNumberList', pretty_print=pretty_print)
+            showIndent(outfile, level, pretty_print)
+            outfile.write('</%s%s>%s' % (namespaceprefix_, name_, eol_))
+        else:
+            outfile.write('/>%s' % (eol_, ))
+    def exportAttributes(self, outfile, level, already_processed, namespaceprefix_='', name_='PartNumberList'):
+        pass
+    def exportChildren(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='PartNumberList', fromsubclass_=False, pretty_print=True):
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        for part_number_ in self.part_number:
+            part_number_.export(outfile, level, namespaceprefix_, namespacedef_='', name_='part-number', pretty_print=pretty_print)
+    def build(self, node):
+        already_processed = set()
+        self.buildAttributes(node, node.attrib, already_processed)
+        for child in node:
+            nodeName_ = Tag_pattern_.match(child.tag).groups()[-1]
+            self.buildChildren(child, node, nodeName_)
+        return self
+    def buildAttributes(self, node, attrs, already_processed):
+        pass
+    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
+        if nodeName_ == 'part-number':
+            obj_ = PartNumber.factory(parent_object_=self)
+            obj_.build(child_)
+            self.part_number.append(obj_)
+            obj_.original_tagname_ = 'part-number'
+# end class PartNumberList
+
+
+GDSClassesMapping = {
+    'bom-file': BomFile,
+}
+
+
+USAGE_TEXT = """
+Usage: python <Parser>.py [ -s ] <in_xml_file>
+"""
+
+
+def usage():
+    print(USAGE_TEXT)
+    sys.exit(1)
+
+
+def get_root_tag(node):
+    tag = Tag_pattern_.match(node.tag).groups()[-1]
+    rootClass = GDSClassesMapping.get(tag)
+    if rootClass is None:
+        rootClass = globals().get(tag)
+    return tag, rootClass
+
+
+def parse(inFileName, silence=False):
+    parser = None
+    doc = parsexml_(inFileName, parser)
+    rootNode = doc.getroot()
+    rootTag, rootClass = get_root_tag(rootNode)
+    if rootClass is None:
+        rootTag = 'BomFile'
+        rootClass = BomFile
+    rootObj = rootClass.factory()
+    rootObj.build(rootNode)
+    # Enable Python to collect the space used by the DOM.
+    doc = None
+    if not silence:
+        sys.stdout.write('<?xml version="1.0" ?>\n')
+        rootObj.export(
+            sys.stdout, 0, name_=rootTag,
+            namespacedef_='',
+            pretty_print=True)
+    return rootObj
+
+
+def parseEtree(inFileName, silence=False):
+    parser = None
+    doc = parsexml_(inFileName, parser)
+    rootNode = doc.getroot()
+    rootTag, rootClass = get_root_tag(rootNode)
+    if rootClass is None:
+        rootTag = 'BomFile'
+        rootClass = BomFile
+    rootObj = rootClass.factory()
+    rootObj.build(rootNode)
+    # Enable Python to collect the space used by the DOM.
+    doc = None
+    mapping = {}
+    rootElement = rootObj.to_etree(None, name_=rootTag, mapping_=mapping)
+    reverse_mapping = rootObj.gds_reverse_node_mapping(mapping)
+    if not silence:
+        content = etree_.tostring(
+            rootElement, pretty_print=True,
+            xml_declaration=True, encoding="utf-8")
+        sys.stdout.write(content)
+        sys.stdout.write('\n')
+    return rootObj, rootElement, mapping, reverse_mapping
+
+
+def parseString(inString, silence=False):
+    '''Parse a string, create the object tree, and export it.
+
+    Arguments:
+    - inString -- A string.  This XML fragment should not start
+      with an XML declaration containing an encoding.
+    - silence -- A boolean.  If False, export the object.
+    Returns -- The root object in the tree.
+    '''
+    parser = None
+    rootNode= parsexmlstring_(inString, parser)
+    rootTag, rootClass = get_root_tag(rootNode)
+    if rootClass is None:
+        rootTag = 'BomFile'
+        rootClass = BomFile
+    rootObj = rootClass.factory()
+    rootObj.build(rootNode)
+    # Enable Python to collect the space used by the DOM.
+    if not silence:
+        sys.stdout.write('<?xml version="1.0" ?>\n')
+        rootObj.export(
+            sys.stdout, 0, name_=rootTag,
+            namespacedef_='')
+    return rootObj
+
+
+def parseLiteral(inFileName, silence=False):
+    parser = None
+    doc = parsexml_(inFileName, parser)
+    rootNode = doc.getroot()
+    rootTag, rootClass = get_root_tag(rootNode)
+    if rootClass is None:
+        rootTag = 'BomFile'
+        rootClass = BomFile
+    rootObj = rootClass.factory()
+    rootObj.build(rootNode)
+    # Enable Python to collect the space used by the DOM.
+    doc = None
+    if not silence:
+        sys.stdout.write('#from bomFile import *\n\n')
+        sys.stdout.write('import bomFile as model_\n\n')
+        sys.stdout.write('rootObj = model_.rootClass(\n')
+        rootObj.exportLiteral(sys.stdout, 0, name_=rootTag)
+        sys.stdout.write(')\n')
+    return rootObj
+
+
+def main():
+    args = sys.argv[1:]
+    if len(args) == 1:
+        parse(args[0])
+    else:
+        usage()
+
+
+if __name__ == '__main__':
+    #import pdb; pdb.set_trace()
+    main()
+
+
+__all__ = [
+    "BomFile",
+    "Part",
+    "PartList",
+    "PartNumber",
+    "PartNumberList"
+]
diff --git a/src/ee/xml/catalogFile.py b/src/ee/xml/catalogFile.py
new file mode 100644
index 0000000..61085e7
--- /dev/null
+++ b/src/ee/xml/catalogFile.py
@@ -0,0 +1,1103 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+#
+# Generated Tue Feb 19 12:27:27 2019 by generateDS.py version 2.30.11.
+# Python 3.7.2+ (default, Feb  2 2019, 14:31:48)  [GCC 8.2.0]
+#
+# Command line options:
+#   ('-f', '')
+#   ('--one-file-per-xsd', '')
+#   ('--output-directory', 'src/ee/xml')
+#   ('-m', '')
+#
+# Command line arguments:
+#   xsd/ee-catalog.xsd
+#
+# Command line:
+#   env/bin/generateDS.py -f --one-file-per-xsd --output-directory="src/ee/xml" -m xsd/ee-catalog.xsd
+#
+# Current working directory (os.getcwd()):
+#   ee-python
+#
+
+import sys
+import re as re_
+import base64
+import datetime as datetime_
+import warnings as warnings_
+try:
+    from lxml import etree as etree_
+except ImportError:
+    from xml.etree import ElementTree as etree_
+
+
+Validate_simpletypes_ = True
+if sys.version_info.major == 2:
+    BaseStrType_ = basestring
+else:
+    BaseStrType_ = str
+
+
+def parsexml_(infile, parser=None, **kwargs):
+    if parser is None:
+        # Use the lxml ElementTree compatible parser so that, e.g.,
+        #   we ignore comments.
+        try:
+            parser = etree_.ETCompatXMLParser()
+        except AttributeError:
+            # fallback to xml.etree
+            parser = etree_.XMLParser()
+    doc = etree_.parse(infile, parser=parser, **kwargs)
+    return doc
+
+def parsexmlstring_(instring, parser=None, **kwargs):
+    if parser is None:
+        # Use the lxml ElementTree compatible parser so that, e.g.,
+        #   we ignore comments.
+        try:
+            parser = etree_.ETCompatXMLParser()
+        except AttributeError:
+            # fallback to xml.etree
+            parser = etree_.XMLParser()
+    element = etree_.fromstring(instring, parser=parser, **kwargs)
+    return element
+
+#
+# Namespace prefix definition table (and other attributes, too)
+#
+# The module generatedsnamespaces, if it is importable, must contain
+# a dictionary named GeneratedsNamespaceDefs.  This Python dictionary
+# should map element type names (strings) to XML schema namespace prefix
+# definitions.  The export method for any class for which there is
+# a namespace prefix definition, will export that definition in the
+# XML representation of that element.  See the export method of
+# any generated element type class for a example of the use of this
+# table.
+# A sample table is:
+#
+#     # File: generatedsnamespaces.py
+#
+#     GenerateDSNamespaceDefs = {
+#         "ElementtypeA": "http://www.xxx.com/namespaceA",
+#         "ElementtypeB": "http://www.xxx.com/namespaceB",
+#     }
+#
+
+try:
+    from generatedsnamespaces import GenerateDSNamespaceDefs as GenerateDSNamespaceDefs_
+except ImportError:
+    GenerateDSNamespaceDefs_ = {}
+
+#
+# The root super-class for element type classes
+#
+# Calls to the methods in these classes are generated by generateDS.py.
+# You can replace these methods by re-implementing the following class
+#   in a module named generatedssuper.py.
+
+try:
+    from generatedssuper import GeneratedsSuper
+except ImportError as exp:
+    
+    class GeneratedsSuper(object):
+        tzoff_pattern = re_.compile(r'(\+|-)((0\d|1[0-3]):[0-5]\d|14:00)$')
+        class _FixedOffsetTZ(datetime_.tzinfo):
+            def __init__(self, offset, name):
+                self.__offset = datetime_.timedelta(minutes=offset)
+                self.__name = name
+            def utcoffset(self, dt):
+                return self.__offset
+            def tzname(self, dt):
+                return self.__name
+            def dst(self, dt):
+                return None
+        def gds_format_string(self, input_data, input_name=''):
+            return input_data
+        def gds_validate_string(self, input_data, node=None, input_name=''):
+            if not input_data:
+                return ''
+            else:
+                return input_data
+        def gds_format_base64(self, input_data, input_name=''):
+            return base64.b64encode(input_data)
+        def gds_validate_base64(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_integer(self, input_data, input_name=''):
+            return '%d' % input_data
+        def gds_validate_integer(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_integer_list(self, input_data, input_name=''):
+            return '%s' % ' '.join(input_data)
+        def gds_validate_integer_list(
+                self, input_data, node=None, input_name=''):
+            values = input_data.split()
+            for value in values:
+                try:
+                    int(value)
+                except (TypeError, ValueError):
+                    raise_parse_error(node, 'Requires sequence of integers')
+            return values
+        def gds_format_float(self, input_data, input_name=''):
+            return ('%.15f' % input_data).rstrip('0')
+        def gds_validate_float(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_float_list(self, input_data, input_name=''):
+            return '%s' % ' '.join(input_data)
+        def gds_validate_float_list(
+                self, input_data, node=None, input_name=''):
+            values = input_data.split()
+            for value in values:
+                try:
+                    float(value)
+                except (TypeError, ValueError):
+                    raise_parse_error(node, 'Requires sequence of floats')
+            return values
+        def gds_format_double(self, input_data, input_name=''):
+            return '%e' % input_data
+        def gds_validate_double(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_double_list(self, input_data, input_name=''):
+            return '%s' % ' '.join(input_data)
+        def gds_validate_double_list(
+                self, input_data, node=None, input_name=''):
+            values = input_data.split()
+            for value in values:
+                try:
+                    float(value)
+                except (TypeError, ValueError):
+                    raise_parse_error(node, 'Requires sequence of doubles')
+            return values
+        def gds_format_boolean(self, input_data, input_name=''):
+            return ('%s' % input_data).lower()
+        def gds_validate_boolean(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_boolean_list(self, input_data, input_name=''):
+            return '%s' % ' '.join(input_data)
+        def gds_validate_boolean_list(
+                self, input_data, node=None, input_name=''):
+            values = input_data.split()
+            for value in values:
+                if value not in ('true', '1', 'false', '0', ):
+                    raise_parse_error(
+                        node,
+                        'Requires sequence of booleans '
+                        '("true", "1", "false", "0")')
+            return values
+        def gds_validate_datetime(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_datetime(self, input_data, input_name=''):
+            if input_data.microsecond == 0:
+                _svalue = '%04d-%02d-%02dT%02d:%02d:%02d' % (
+                    input_data.year,
+                    input_data.month,
+                    input_data.day,
+                    input_data.hour,
+                    input_data.minute,
+                    input_data.second,
+                )
+            else:
+                _svalue = '%04d-%02d-%02dT%02d:%02d:%02d.%s' % (
+                    input_data.year,
+                    input_data.month,
+                    input_data.day,
+                    input_data.hour,
+                    input_data.minute,
+                    input_data.second,
+                    ('%f' % (float(input_data.microsecond) / 1000000))[2:],
+                )
+            if input_data.tzinfo is not None:
+                tzoff = input_data.tzinfo.utcoffset(input_data)
+                if tzoff is not None:
+                    total_seconds = tzoff.seconds + (86400 * tzoff.days)
+                    if total_seconds == 0:
+                        _svalue += 'Z'
+                    else:
+                        if total_seconds < 0:
+                            _svalue += '-'
+                            total_seconds *= -1
+                        else:
+                            _svalue += '+'
+                        hours = total_seconds // 3600
+                        minutes = (total_seconds - (hours * 3600)) // 60
+                        _svalue += '{0:02d}:{1:02d}'.format(hours, minutes)
+            return _svalue
+        @classmethod
+        def gds_parse_datetime(cls, input_data):
+            tz = None
+            if input_data[-1] == 'Z':
+                tz = GeneratedsSuper._FixedOffsetTZ(0, 'UTC')
+                input_data = input_data[:-1]
+            else:
+                results = GeneratedsSuper.tzoff_pattern.search(input_data)
+                if results is not None:
+                    tzoff_parts = results.group(2).split(':')
+                    tzoff = int(tzoff_parts[0]) * 60 + int(tzoff_parts[1])
+                    if results.group(1) == '-':
+                        tzoff *= -1
+                    tz = GeneratedsSuper._FixedOffsetTZ(
+                        tzoff, results.group(0))
+                    input_data = input_data[:-6]
+            time_parts = input_data.split('.')
+            if len(time_parts) > 1:
+                micro_seconds = int(float('0.' + time_parts[1]) * 1000000)
+                input_data = '%s.%s' % (
+                    time_parts[0], "{}".format(micro_seconds).rjust(6, "0"), )
+                dt = datetime_.datetime.strptime(
+                    input_data, '%Y-%m-%dT%H:%M:%S.%f')
+            else:
+                dt = datetime_.datetime.strptime(
+                    input_data, '%Y-%m-%dT%H:%M:%S')
+            dt = dt.replace(tzinfo=tz)
+            return dt
+        def gds_validate_date(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_date(self, input_data, input_name=''):
+            _svalue = '%04d-%02d-%02d' % (
+                input_data.year,
+                input_data.month,
+                input_data.day,
+            )
+            try:
+                if input_data.tzinfo is not None:
+                    tzoff = input_data.tzinfo.utcoffset(input_data)
+                    if tzoff is not None:
+                        total_seconds = tzoff.seconds + (86400 * tzoff.days)
+                        if total_seconds == 0:
+                            _svalue += 'Z'
+                        else:
+                            if total_seconds < 0:
+                                _svalue += '-'
+                                total_seconds *= -1
+                            else:
+                                _svalue += '+'
+                            hours = total_seconds // 3600
+                            minutes = (total_seconds - (hours * 3600)) // 60
+                            _svalue += '{0:02d}:{1:02d}'.format(
+                                hours, minutes)
+            except AttributeError:
+                pass
+            return _svalue
+        @classmethod
+        def gds_parse_date(cls, input_data):
+            tz = None
+            if input_data[-1] == 'Z':
+                tz = GeneratedsSuper._FixedOffsetTZ(0, 'UTC')
+                input_data = input_data[:-1]
+            else:
+                results = GeneratedsSuper.tzoff_pattern.search(input_data)
+                if results is not None:
+                    tzoff_parts = results.group(2).split(':')
+                    tzoff = int(tzoff_parts[0]) * 60 + int(tzoff_parts[1])
+                    if results.group(1) == '-':
+                        tzoff *= -1
+                    tz = GeneratedsSuper._FixedOffsetTZ(
+                        tzoff, results.group(0))
+                    input_data = input_data[:-6]
+            dt = datetime_.datetime.strptime(input_data, '%Y-%m-%d')
+            dt = dt.replace(tzinfo=tz)
+            return dt.date()
+        def gds_validate_time(self, input_data, node=None, input_name=''):
+            return input_data
+        def gds_format_time(self, input_data, input_name=''):
+            if input_data.microsecond == 0:
+                _svalue = '%02d:%02d:%02d' % (
+                    input_data.hour,
+                    input_data.minute,
+                    input_data.second,
+                )
+            else:
+                _svalue = '%02d:%02d:%02d.%s' % (
+                    input_data.hour,
+                    input_data.minute,
+                    input_data.second,
+                    ('%f' % (float(input_data.microsecond) / 1000000))[2:],
+                )
+            if input_data.tzinfo is not None:
+                tzoff = input_data.tzinfo.utcoffset(input_data)
+                if tzoff is not None:
+                    total_seconds = tzoff.seconds + (86400 * tzoff.days)
+                    if total_seconds == 0:
+                        _svalue += 'Z'
+                    else:
+                        if total_seconds < 0:
+                            _svalue += '-'
+                            total_seconds *= -1
+                        else:
+                            _svalue += '+'
+                        hours = total_seconds // 3600
+                        minutes = (total_seconds - (hours * 3600)) // 60
+                        _svalue += '{0:02d}:{1:02d}'.format(hours, minutes)
+            return _svalue
+        def gds_validate_simple_patterns(self, patterns, target):
+            # pat is a list of lists of strings/patterns.
+            # The target value must match at least one of the patterns
+            # in order for the test to succeed.
+            found1 = True
+            for patterns1 in patterns:
+                found2 = False
+                for patterns2 in patterns1:
+                    mo = re_.search(patterns2, target)
+                    if mo is not None and len(mo.group(0)) == len(target):
+                        found2 = True
+                        break
+                if not found2:
+                    found1 = False
+                    break
+            return found1
+        @classmethod
+        def gds_parse_time(cls, input_data):
+            tz = None
+            if input_data[-1] == 'Z':
+                tz = GeneratedsSuper._FixedOffsetTZ(0, 'UTC')
+                input_data = input_data[:-1]
+            else:
+                results = GeneratedsSuper.tzoff_pattern.search(input_data)
+                if results is not None:
+                    tzoff_parts = results.group(2).split(':')
+                    tzoff = int(tzoff_parts[0]) * 60 + int(tzoff_parts[1])
+                    if results.group(1) == '-':
+                        tzoff *= -1
+                    tz = GeneratedsSuper._FixedOffsetTZ(
+                        tzoff, results.group(0))
+                    input_data = input_data[:-6]
+            if len(input_data.split('.')) > 1:
+                dt = datetime_.datetime.strptime(input_data, '%H:%M:%S.%f')
+            else:
+                dt = datetime_.datetime.strptime(input_data, '%H:%M:%S')
+            dt = dt.replace(tzinfo=tz)
+            return dt.time()
+        def gds_str_lower(self, instring):
+            return instring.lower()
+        def get_path_(self, node):
+            path_list = []
+            self.get_path_list_(node, path_list)
+            path_list.reverse()
+            path = '/'.join(path_list)
+            return path
+        Tag_strip_pattern_ = re_.compile(r'\{.*\}')
+        def get_path_list_(self, node, path_list):
+            if node is None:
+                return
+            tag = GeneratedsSuper.Tag_strip_pattern_.sub('', node.tag)
+            if tag:
+                path_list.append(tag)
+            self.get_path_list_(node.getparent(), path_list)
+        def get_class_obj_(self, node, default_class=None):
+            class_obj1 = default_class
+            if 'xsi' in node.nsmap:
+                classname = node.get('{%s}type' % node.nsmap['xsi'])
+                if classname is not None:
+                    names = classname.split(':')
+                    if len(names) == 2:
+                        classname = names[1]
+                    class_obj2 = globals().get(classname)
+                    if class_obj2 is not None:
+                        class_obj1 = class_obj2
+            return class_obj1
+        def gds_build_any(self, node, type_name=None):
+            return None
+        @classmethod
+        def gds_reverse_node_mapping(cls, mapping):
+            return dict(((v, k) for k, v in mapping.items()))
+        @staticmethod
+        def gds_encode(instring):
+            if sys.version_info.major == 2:
+                if ExternalEncoding:
+                    encoding = ExternalEncoding
+                else:
+                    encoding = 'utf-8'
+                return instring.encode(encoding)
+            else:
+                return instring
+        @staticmethod
+        def convert_unicode(instring):
+            if isinstance(instring, str):
+                result = quote_xml(instring)
+            elif sys.version_info.major == 2 and isinstance(instring, unicode):
+                result = quote_xml(instring).encode('utf8')
+            else:
+                result = GeneratedsSuper.gds_encode(str(instring))
+            return result
+        def __eq__(self, other):
+            if type(self) != type(other):
+                return False
+            return self.__dict__ == other.__dict__
+        def __ne__(self, other):
+            return not self.__eq__(other)
+    
+    def getSubclassFromModule_(module, class_):
+        '''Get the subclass of a class from a specific module.'''
+        name = class_.__name__ + 'Sub'
+        if hasattr(module, name):
+            return getattr(module, name)
+        else:
+            return None
+
+
+#
+# If you have installed IPython you can uncomment and use the following.
+# IPython is available from http://ipython.scipy.org/.
+#
+
+## from IPython.Shell import IPShellEmbed
+## args = ''
+## ipshell = IPShellEmbed(args,
+##     banner = 'Dropping into IPython',
+##     exit_msg = 'Leaving Interpreter, back to program.')
+
+# Then use the following line where and when you want to drop into the
+# IPython shell:
+#    ipshell('<some message> -- Entering ipshell.\nHit Ctrl-D to exit')
+
+#
+# Globals
+#
+
+ExternalEncoding = ''
+Tag_pattern_ = re_.compile(r'({.*})?(.*)')
+String_cleanup_pat_ = re_.compile(r"[\n\r\s]+")
+Namespace_extract_pat_ = re_.compile(r'{(.*)}(.*)')
+CDATA_pattern_ = re_.compile(r"<!\[CDATA\[.*?\]\]>", re_.DOTALL)
+
+# Change this to redirect the generated superclass module to use a
+# specific subclass module.
+CurrentSubclassModule_ = None
+
+#
+# Support/utility functions.
+#
+
+
+def showIndent(outfile, level, pretty_print=True):
+    if pretty_print:
+        for idx in range(level):
+            outfile.write('    ')
+
+
+def quote_xml(inStr):
+    "Escape markup chars, but do not modify CDATA sections."
+    if not inStr:
+        return ''
+    s1 = (isinstance(inStr, BaseStrType_) and inStr or '%s' % inStr)
+    s2 = ''
+    pos = 0
+    matchobjects = CDATA_pattern_.finditer(s1)
+    for mo in matchobjects:
+        s3 = s1[pos:mo.start()]
+        s2 += quote_xml_aux(s3)
+        s2 += s1[mo.start():mo.end()]
+        pos = mo.end()
+    s3 = s1[pos:]
+    s2 += quote_xml_aux(s3)
+    return s2
+
+
+def quote_xml_aux(inStr):
+    s1 = inStr.replace('&', '&amp;')
+    s1 = s1.replace('<', '&lt;')
+    s1 = s1.replace('>', '&gt;')
+    return s1
+
+
+def quote_attrib(inStr):
+    s1 = (isinstance(inStr, BaseStrType_) and inStr or '%s' % inStr)
+    s1 = s1.replace('&', '&amp;')
+    s1 = s1.replace('<', '&lt;')
+    s1 = s1.replace('>', '&gt;')
+    if '"' in s1:
+        if "'" in s1:
+            s1 = '"%s"' % s1.replace('"', "&quot;")
+        else:
+            s1 = "'%s'" % s1
+    else:
+        s1 = '"%s"' % s1
+    return s1
+
+
+def quote_python(inStr):
+    s1 = inStr
+    if s1.find("'") == -1:
+        if s1.find('\n') == -1:
+            return "'%s'" % s1
+        else:
+            return "'''%s'''" % s1
+    else:
+        if s1.find('"') != -1:
+            s1 = s1.replace('"', '\\"')
+        if s1.find('\n') == -1:
+            return '"%s"' % s1
+        else:
+            return '"""%s"""' % s1
+
+
+def get_all_text_(node):
+    if node.text is not None:
+        text = node.text
+    else:
+        text = ''
+    for child in node:
+        if child.tail is not None:
+            text += child.tail
+    return text
+
+
+def find_attr_value_(attr_name, node):
+    attrs = node.attrib
+    attr_parts = attr_name.split(':')
+    value = None
+    if len(attr_parts) == 1:
+        value = attrs.get(attr_name)
+    elif len(attr_parts) == 2:
+        prefix, name = attr_parts
+        namespace = node.nsmap.get(prefix)
+        if namespace is not None:
+            value = attrs.get('{%s}%s' % (namespace, name, ))
+    return value
+
+
+class GDSParseError(Exception):
+    pass
+
+
+def raise_parse_error(node, msg):
+    msg = '%s (element %s/line %d)' % (msg, node.tag, node.sourceline, )
+    raise GDSParseError(msg)
+
+
+class MixedContainer:
+    # Constants for category:
+    CategoryNone = 0
+    CategoryText = 1
+    CategorySimple = 2
+    CategoryComplex = 3
+    # Constants for content_type:
+    TypeNone = 0
+    TypeText = 1
+    TypeString = 2
+    TypeInteger = 3
+    TypeFloat = 4
+    TypeDecimal = 5
+    TypeDouble = 6
+    TypeBoolean = 7
+    TypeBase64 = 8
+    def __init__(self, category, content_type, name, value):
+        self.category = category
+        self.content_type = content_type
+        self.name = name
+        self.value = value
+    def getCategory(self):
+        return self.category
+    def getContenttype(self, content_type):
+        return self.content_type
+    def getValue(self):
+        return self.value
+    def getName(self):
+        return self.name
+    def export(self, outfile, level, name, namespace,
+               pretty_print=True):
+        if self.category == MixedContainer.CategoryText:
+            # Prevent exporting empty content as empty lines.
+            if self.value.strip():
+                outfile.write(self.value)
+        elif self.category == MixedContainer.CategorySimple:
+            self.exportSimple(outfile, level, name)
+        else:    # category == MixedContainer.CategoryComplex
+            self.value.export(
+                outfile, level, namespace, name_=name,
+                pretty_print=pretty_print)
+    def exportSimple(self, outfile, level, name):
+        if self.content_type == MixedContainer.TypeString:
+            outfile.write('<%s>%s</%s>' % (
+                self.name, self.value, self.name))
+        elif self.content_type == MixedContainer.TypeInteger or \
+                self.content_type == MixedContainer.TypeBoolean:
+            outfile.write('<%s>%d</%s>' % (
+                self.name, self.value, self.name))
+        elif self.content_type == MixedContainer.TypeFloat or \
+                self.content_type == MixedContainer.TypeDecimal:
+            outfile.write('<%s>%f</%s>' % (
+                self.name, self.value, self.name))
+        elif self.content_type == MixedContainer.TypeDouble:
+            outfile.write('<%s>%g</%s>' % (
+                self.name, self.value, self.name))
+        elif self.content_type == MixedContainer.TypeBase64:
+            outfile.write('<%s>%s</%s>' % (
+                self.name,
+                base64.b64encode(self.value),
+                self.name))
+    def to_etree(self, element):
+        if self.category == MixedContainer.CategoryText:
+            # Prevent exporting empty content as empty lines.
+            if self.value.strip():
+                if len(element) > 0:
+                    if element[-1].tail is None:
+                        element[-1].tail = self.value
+                    else:
+                        element[-1].tail += self.value
+                else:
+                    if element.text is None:
+                        element.text = self.value
+                    else:
+                        element.text += self.value
+        elif self.category == MixedContainer.CategorySimple:
+            subelement = etree_.SubElement(
+                element, '%s' % self.name)
+            subelement.text = self.to_etree_simple()
+        else:    # category == MixedContainer.CategoryComplex
+            self.value.to_etree(element)
+    def to_etree_simple(self):
+        if self.content_type == MixedContainer.TypeString:
+            text = self.value
+        elif (self.content_type == MixedContainer.TypeInteger or
+                self.content_type == MixedContainer.TypeBoolean):
+            text = '%d' % self.value
+        elif (self.content_type == MixedContainer.TypeFloat or
+                self.content_type == MixedContainer.TypeDecimal):
+            text = '%f' % self.value
+        elif self.content_type == MixedContainer.TypeDouble:
+            text = '%g' % self.value
+        elif self.content_type == MixedContainer.TypeBase64:
+            text = '%s' % base64.b64encode(self.value)
+        return text
+    def exportLiteral(self, outfile, level, name):
+        if self.category == MixedContainer.CategoryText:
+            showIndent(outfile, level)
+            outfile.write(
+                'model_.MixedContainer(%d, %d, "%s", "%s"),\n' % (
+                    self.category, self.content_type,
+                    self.name, self.value))
+        elif self.category == MixedContainer.CategorySimple:
+            showIndent(outfile, level)
+            outfile.write(
+                'model_.MixedContainer(%d, %d, "%s", "%s"),\n' % (
+                    self.category, self.content_type,
+                    self.name, self.value))
+        else:    # category == MixedContainer.CategoryComplex
+            showIndent(outfile, level)
+            outfile.write(
+                'model_.MixedContainer(%d, %d, "%s",\n' % (
+                    self.category, self.content_type, self.name,))
+            self.value.exportLiteral(outfile, level + 1)
+            showIndent(outfile, level)
+            outfile.write(')\n')
+
+
+class MemberSpec_(object):
+    def __init__(self, name='', data_type='', container=0,
+            optional=0, child_attrs=None, choice=None):
+        self.name = name
+        self.data_type = data_type
+        self.container = container
+        self.child_attrs = child_attrs
+        self.choice = choice
+        self.optional = optional
+    def set_name(self, name): self.name = name
+    def get_name(self): return self.name
+    def set_data_type(self, data_type): self.data_type = data_type
+    def get_data_type_chain(self): return self.data_type
+    def get_data_type(self):
+        if isinstance(self.data_type, list):
+            if len(self.data_type) > 0:
+                return self.data_type[-1]
+            else:
+                return 'xs:string'
+        else:
+            return self.data_type
+    def set_container(self, container): self.container = container
+    def get_container(self): return self.container
+    def set_child_attrs(self, child_attrs): self.child_attrs = child_attrs
+    def get_child_attrs(self): return self.child_attrs
+    def set_choice(self, choice): self.choice = choice
+    def get_choice(self): return self.choice
+    def set_optional(self, optional): self.optional = optional
+    def get_optional(self): return self.optional
+
+
+def _cast(typ, value):
+    if typ is None or value is None:
+        return value
+    return typ(value)
+
+#
+# Data representation classes.
+#
+
+
+class CatalogFile(GeneratedsSuper):
+    subclass = None
+    superclass = None
+    def __init__(self, products=None, **kwargs_):
+        self.original_tagname_ = None
+        self.parent_object_ = kwargs_.get('parent_object_')
+        self.products = products
+    def factory(*args_, **kwargs_):
+        if CurrentSubclassModule_ is not None:
+            subclass = getSubclassFromModule_(
+                CurrentSubclassModule_, CatalogFile)
+            if subclass is not None:
+                return subclass(*args_, **kwargs_)
+        if CatalogFile.subclass:
+            return CatalogFile.subclass(*args_, **kwargs_)
+        else:
+            return CatalogFile(*args_, **kwargs_)
+    factory = staticmethod(factory)
+    def get_products(self):
+        return self.products
+    def set_products(self, products):
+        self.products = products
+    productsProp = property(get_products, set_products)
+    def hasContent_(self):
+        if (
+            self.products is not None
+        ):
+            return True
+        else:
+            return False
+    def export(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='CatalogFile', pretty_print=True):
+        imported_ns_def_ = GenerateDSNamespaceDefs_.get('CatalogFile')
+        if imported_ns_def_ is not None:
+            namespacedef_ = imported_ns_def_
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.original_tagname_ is not None:
+            name_ = self.original_tagname_
+        showIndent(outfile, level, pretty_print)
+        outfile.write('<%s%s%s' % (namespaceprefix_, name_, namespacedef_ and ' ' + namespacedef_ or '', ))
+        already_processed = set()
+        self.exportAttributes(outfile, level, already_processed, namespaceprefix_, name_='CatalogFile')
+        if self.hasContent_():
+            outfile.write('>%s' % (eol_, ))
+            self.exportChildren(outfile, level + 1, namespaceprefix_, namespacedef_, name_='CatalogFile', pretty_print=pretty_print)
+            showIndent(outfile, level, pretty_print)
+            outfile.write('</%s%s>%s' % (namespaceprefix_, name_, eol_))
+        else:
+            outfile.write('/>%s' % (eol_, ))
+    def exportAttributes(self, outfile, level, already_processed, namespaceprefix_='', name_='CatalogFile'):
+        pass
+    def exportChildren(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='CatalogFile', fromsubclass_=False, pretty_print=True):
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.products is not None:
+            self.products.export(outfile, level, namespaceprefix_, namespacedef_='', name_='products', pretty_print=pretty_print)
+    def build(self, node):
+        already_processed = set()
+        self.buildAttributes(node, node.attrib, already_processed)
+        for child in node:
+            nodeName_ = Tag_pattern_.match(child.tag).groups()[-1]
+            self.buildChildren(child, node, nodeName_)
+        return self
+    def buildAttributes(self, node, attrs, already_processed):
+        pass
+    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
+        if nodeName_ == 'products':
+            obj_ = ProductList.factory(parent_object_=self)
+            obj_.build(child_)
+            self.products = obj_
+            obj_.original_tagname_ = 'products'
+# end class CatalogFile
+
+
+class Product(GeneratedsSuper):
+    subclass = None
+    superclass = None
+    def __init__(self, ref=None, **kwargs_):
+        self.original_tagname_ = None
+        self.parent_object_ = kwargs_.get('parent_object_')
+        self.ref = ref
+    def factory(*args_, **kwargs_):
+        if CurrentSubclassModule_ is not None:
+            subclass = getSubclassFromModule_(
+                CurrentSubclassModule_, Product)
+            if subclass is not None:
+                return subclass(*args_, **kwargs_)
+        if Product.subclass:
+            return Product.subclass(*args_, **kwargs_)
+        else:
+            return Product(*args_, **kwargs_)
+    factory = staticmethod(factory)
+    def get_ref(self):
+        return self.ref
+    def set_ref(self, ref):
+        self.ref = ref
+    refProp = property(get_ref, set_ref)
+    def hasContent_(self):
+        if (
+            self.ref is not None
+        ):
+            return True
+        else:
+            return False
+    def export(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='Product', pretty_print=True):
+        imported_ns_def_ = GenerateDSNamespaceDefs_.get('Product')
+        if imported_ns_def_ is not None:
+            namespacedef_ = imported_ns_def_
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.original_tagname_ is not None:
+            name_ = self.original_tagname_
+        showIndent(outfile, level, pretty_print)
+        outfile.write('<%s%s%s' % (namespaceprefix_, name_, namespacedef_ and ' ' + namespacedef_ or '', ))
+        already_processed = set()
+        self.exportAttributes(outfile, level, already_processed, namespaceprefix_, name_='Product')
+        if self.hasContent_():
+            outfile.write('>%s' % (eol_, ))
+            self.exportChildren(outfile, level + 1, namespaceprefix_, namespacedef_, name_='Product', pretty_print=pretty_print)
+            showIndent(outfile, level, pretty_print)
+            outfile.write('</%s%s>%s' % (namespaceprefix_, name_, eol_))
+        else:
+            outfile.write('/>%s' % (eol_, ))
+    def exportAttributes(self, outfile, level, already_processed, namespaceprefix_='', name_='Product'):
+        pass
+    def exportChildren(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='Product', fromsubclass_=False, pretty_print=True):
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.ref is not None:
+            showIndent(outfile, level, pretty_print)
+            outfile.write('<%sref>%s</%sref>%s' % (namespaceprefix_ , self.gds_encode(self.gds_format_string(quote_xml(self.ref), input_name='ref')), namespaceprefix_ , eol_))
+    def build(self, node):
+        already_processed = set()
+        self.buildAttributes(node, node.attrib, already_processed)
+        for child in node:
+            nodeName_ = Tag_pattern_.match(child.tag).groups()[-1]
+            self.buildChildren(child, node, nodeName_)
+        return self
+    def buildAttributes(self, node, attrs, already_processed):
+        pass
+    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
+        if nodeName_ == 'ref':
+            ref_ = child_.text
+            ref_ = self.gds_validate_string(ref_, node, 'ref')
+            self.ref = ref_
+# end class Product
+
+
+class ProductList(GeneratedsSuper):
+    subclass = None
+    superclass = None
+    def __init__(self, product=None, **kwargs_):
+        self.original_tagname_ = None
+        self.parent_object_ = kwargs_.get('parent_object_')
+        if product is None:
+            self.product = []
+        else:
+            self.product = product
+    def factory(*args_, **kwargs_):
+        if CurrentSubclassModule_ is not None:
+            subclass = getSubclassFromModule_(
+                CurrentSubclassModule_, ProductList)
+            if subclass is not None:
+                return subclass(*args_, **kwargs_)
+        if ProductList.subclass:
+            return ProductList.subclass(*args_, **kwargs_)
+        else:
+            return ProductList(*args_, **kwargs_)
+    factory = staticmethod(factory)
+    def get_product(self):
+        return self.product
+    def set_product(self, product):
+        self.product = product
+    def add_product(self, value):
+        self.product.append(value)
+    def add_product(self, value):
+        self.product.append(value)
+    def insert_product_at(self, index, value):
+        self.product.insert(index, value)
+    def replace_product_at(self, index, value):
+        self.product[index] = value
+    productProp = property(get_product, set_product)
+    def hasContent_(self):
+        if (
+            self.product
+        ):
+            return True
+        else:
+            return False
+    def export(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='ProductList', pretty_print=True):
+        imported_ns_def_ = GenerateDSNamespaceDefs_.get('ProductList')
+        if imported_ns_def_ is not None:
+            namespacedef_ = imported_ns_def_
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        if self.original_tagname_ is not None:
+            name_ = self.original_tagname_
+        showIndent(outfile, level, pretty_print)
+        outfile.write('<%s%s%s' % (namespaceprefix_, name_, namespacedef_ and ' ' + namespacedef_ or '', ))
+        already_processed = set()
+        self.exportAttributes(outfile, level, already_processed, namespaceprefix_, name_='ProductList')
+        if self.hasContent_():
+            outfile.write('>%s' % (eol_, ))
+            self.exportChildren(outfile, level + 1, namespaceprefix_, namespacedef_, name_='ProductList', pretty_print=pretty_print)
+            showIndent(outfile, level, pretty_print)
+            outfile.write('</%s%s>%s' % (namespaceprefix_, name_, eol_))
+        else:
+            outfile.write('/>%s' % (eol_, ))
+    def exportAttributes(self, outfile, level, already_processed, namespaceprefix_='', name_='ProductList'):
+        pass
+    def exportChildren(self, outfile, level, namespaceprefix_='', namespacedef_='', name_='ProductList', fromsubclass_=False, pretty_print=True):
+        if pretty_print:
+            eol_ = '\n'
+        else:
+            eol_ = ''
+        for product_ in self.product:
+            product_.export(outfile, level, namespaceprefix_, namespacedef_='', name_='product', pretty_print=pretty_print)
+    def build(self, node):
+        already_processed = set()
+        self.buildAttributes(node, node.attrib, already_processed)
+        for child in node:
+            nodeName_ = Tag_pattern_.match(child.tag).groups()[-1]
+            self.buildChildren(child, node, nodeName_)
+        return self
+    def buildAttributes(self, node, attrs, already_processed):
+        pass
+    def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
+        if nodeName_ == 'product':
+            obj_ = Product.factory(parent_object_=self)
+            obj_.build(child_)
+            self.product.append(obj_)
+            obj_.original_tagname_ = 'product'
+# end class ProductList
+
+
+GDSClassesMapping = {
+}
+
+
+USAGE_TEXT = """
+Usage: python <Parser>.py [ -s ] <in_xml_file>
+"""
+
+
+def usage():
+    print(USAGE_TEXT)
+    sys.exit(1)
+
+
+def get_root_tag(node):
+    tag = Tag_pattern_.match(node.tag).groups()[-1]
+    rootClass = GDSClassesMapping.get(tag)
+    if rootClass is None:
+        rootClass = globals().get(tag)
+    return tag, rootClass
+
+
+def parse(inFileName, silence=False):
+    parser = None
+    doc = parsexml_(inFileName, parser)
+    rootNode = doc.getroot()
+    rootTag, rootClass = get_root_tag(rootNode)
+    if rootClass is None:
+        rootTag = 'CatalogFile'
+        rootClass = CatalogFile
+    rootObj = rootClass.factory()
+    rootObj.build(rootNode)
+    # Enable Python to collect the space used by the DOM.
+    doc = None
+    if not silence:
+        sys.stdout.write('<?xml version="1.0" ?>\n')
+        rootObj.export(
+            sys.stdout, 0, name_=rootTag,
+            namespacedef_='',
+            pretty_print=True)
+    return rootObj
+
+
+def parseEtree(inFileName, silence=False):
+    parser = None
+    doc = parsexml_(inFileName, parser)
+    rootNode = doc.getroot()
+    rootTag, rootClass = get_root_tag(rootNode)
+    if rootClass is None:
+        rootTag = 'CatalogFile'
+        rootClass = CatalogFile
+    rootObj = rootClass.factory()
+    rootObj.build(rootNode)
+    # Enable Python to collect the space used by the DOM.
+    doc = None
+    mapping = {}
+    rootElement = rootObj.to_etree(None, name_=rootTag, mapping_=mapping)
+    reverse_mapping = rootObj.gds_reverse_node_mapping(mapping)
+    if not silence:
+        content = etree_.tostring(
+            rootElement, pretty_print=True,
+            xml_declaration=True, encoding="utf-8")
+        sys.stdout.write(content)
+        sys.stdout.write('\n')
+    return rootObj, rootElement, mapping, reverse_mapping
+
+
+def parseString(inString, silence=False):
+    '''Parse a string, create the object tree, and export it.
+
+    Arguments:
+    - inString -- A string.  This XML fragment should not start
+      with an XML declaration containing an encoding.
+    - silence -- A boolean.  If False, export the object.
+    Returns -- The root object in the tree.
+    '''
+    parser = None
+    rootNode= parsexmlstring_(inString, parser)
+    rootTag, rootClass = get_root_tag(rootNode)
+    if rootClass is None:
+        rootTag = 'CatalogFile'
+        rootClass = CatalogFile
+    rootObj = rootClass.factory()
+    rootObj.build(rootNode)
+    # Enable Python to collect the space used by the DOM.
+    if not silence:
+        sys.stdout.write('<?xml version="1.0" ?>\n')
+        rootObj.export(
+            sys.stdout, 0, name_=rootTag,
+            namespacedef_='')
+    return rootObj
+
+
+def parseLiteral(inFileName, silence=False):
+    parser = None
+    doc = parsexml_(inFileName, parser)
+    rootNode = doc.getroot()
+    rootTag, rootClass = get_root_tag(rootNode)
+    if rootClass is None:
+        rootTag = 'CatalogFile'
+        rootClass = CatalogFile
+    rootObj = rootClass.factory()
+    rootObj.build(rootNode)
+    # Enable Python to collect the space used by the DOM.
+    doc = None
+    if not silence:
+        sys.stdout.write('#from catalogFile import *\n\n')
+        sys.stdout.write('import catalogFile as model_\n\n')
+        sys.stdout.write('rootObj = model_.rootClass(\n')
+        rootObj.exportLiteral(sys.stdout, 0, name_=rootTag)
+        sys.stdout.write(')\n')
+    return rootObj
+
+
+def main():
+    args = sys.argv[1:]
+    if len(args) == 1:
+        parse(args[0])
+    else:
+        usage()
+
+
+if __name__ == '__main__':
+    #import pdb; pdb.set_trace()
+    main()
+
+
+__all__ = [
+    "CatalogFile",
+    "Product",
+    "ProductList"
+]
diff --git a/xsd/ee-bom.xsd b/xsd/ee-bom.xsd
new file mode 100644
index 0000000..a9a2cc1
--- /dev/null
+++ b/xsd/ee-bom.xsd
@@ -0,0 +1,63 @@
+<xs:schema
+        xmlns:xs="http://www.w3.org/2001/XMLSchema"
+        targetNamespace="http://purl.org/ee/bom-file"
+        xmlns="http://purl.org/ee/bom-file">
+
+    <xs:attribute name="id" type="xs:string"/>
+
+    <xs:element name="bom-file" type="BomFile"/>
+
+    <xs:complexType name="BomFile">
+        <xs:sequence>
+            <xs:element name="parts" type="PartList" minOccurs="0" maxOccurs="1"/>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:complexType name="Part">
+        <xs:sequence>
+            <xs:element name="schema-reference" type="xs:string"/>
+            <xs:element name="part-type" type="xs:anyURI"/>
+            <!--
+            <xs:element name="manufacturer-part-number" type="xs:string"/>
+            <xs:element name="distributor-part-numbers" type="DistributorPartNumberList"/>
+            -->
+            <xs:element name="part-numbers" type="PartNumberList"/>
+        </xs:sequence>
+        <xs:attribute ref="id" use="required"/>
+    </xs:complexType>
+
+    <xs:complexType name="PartList">
+        <xs:sequence>
+            <xs:element name="part" type="Part" maxOccurs="unbounded"/>
+        </xs:sequence>
+    </xs:complexType>
+
+    <!--
+    <xs:complexType name="DistributorPartNumber">
+        <xs:sequence>
+            <xs:element name="distributor" type="xs:anyURI"/>
+            <xs:element name="number" type="xs:string"/>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:complexType name="DistributorPartNumberList">
+        <xs:sequence>
+            <xs:element name="distributor-part-number" type="DistributorPartNumber" maxOccurs="unbounded"/>
+        </xs:sequence>
+    </xs:complexType>
+    -->
+
+    <xs:complexType name="PartNumber">
+        <xs:sequence>
+            <xs:element name="value" type="xs:string"/>
+            <xs:element name="distributor" type="xs:anyURI"/>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:complexType name="PartNumberList">
+        <xs:sequence>
+            <xs:element name="part-number" type="PartNumber" maxOccurs="unbounded"/>
+        </xs:sequence>
+    </xs:complexType>
+
+</xs:schema>
diff --git a/xsd/ee-catalog.xsd b/xsd/ee-catalog.xsd
new file mode 100644
index 0000000..6da3558
--- /dev/null
+++ b/xsd/ee-catalog.xsd
@@ -0,0 +1,26 @@
+<xsd:schema
+        xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+        targetNamespace="http://purl.org/ee/bom-file"
+        xmlns="http://purl.org/ee/bom-file">
+
+    <xsd:element name="catalog-file" type="CatalogFile"/>
+
+    <xsd:complexType name="CatalogFile">
+        <xsd:sequence>
+            <xsd:element name="products" type="ProductList" minOccurs="0" maxOccurs="1"/>
+        </xsd:sequence>
+    </xsd:complexType>
+
+    <xsd:complexType name="Product">
+        <xsd:sequence>
+            <xsd:element name="ref" type="xsd:string"/>
+        </xsd:sequence>
+    </xsd:complexType>
+
+    <xsd:complexType name="ProductList">
+        <xsd:sequence>
+            <xsd:element name="product" type="Product" maxOccurs="unbounded"/>
+        </xsd:sequence>
+    </xsd:complexType>
+
+</xsd:schema>