Fix sequence numbering in choice with sequences with complexTypes

[larshesel]

The sequence numbering was reset within the complexType handling and this change attempts to preserve the sequence numbering across the elements in the choice alternative handling.

Hi @willemdj this PR fixes #96 and all tests passes, including the new one I added.

First I fixed it by reverting this change 42dc8c9#diff-9669fbc4324a63d6d211486aeef2f42b2fb749159b449a5f2aae44ab5c9f0930R520 so translateLocalComplexType/2 wouldn't reset the seqCnt - @devinus do you know why this change was introduced? With the seqCnt reset removed all tests still pass.

In any case I came across the TODO (removed in the commit) and it made sense to me and I changed the code to preserve the count across elements and reset it when recursing.

What do you think?

Kind regards,
Lars

[willemdj]

You are probably on the right track...
But, I have a fairly large set of tests (outside of the repo), and this breaks at least 2 of them. (Possibly a third, but that one is quite large and I didn't look into it in detail.) Could you have a look at that?

XSD:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <xsd:element name="root">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element name="element1" type="xsd:string"/>
                <xsd:element name="element3" type="xsd:string"/>
                <xsd:sequence>
                    <xsd:element name="element4" type="xsd:string"/>
                    <xsd:element name="element5" type="xsd:string"/>
                </xsd:sequence>
                <xsd:sequence minOccurs="0">
                    <xsd:element name="element6" type="xsd:string"/>
                    <xsd:element name="element7" type="xsd:string"/>
                </xsd:sequence>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
</xsd:schema>

XML:

<?xml version="1.0"?>
<root>
    <element1>Value 1</element1>
    <element3>Value 3</element3>
    <element4>Value 4</element4>
    <element5>Value 5</element5>
</root>

XSD:

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <xsd:element name="root">
        <xsd:complexType>
            <xsd:sequence>
                <xsd:element name="element1.1" type="xsd:string"/>
                <xsd:element name="element1.2" type="xsd:string"/>
                <xsd:sequence>
                    <xsd:element name="element1.3.1" type="xsd:string"/>
                    <xsd:element name="element1.3.2" type="xsd:string"/>
                </xsd:sequence>
                <xsd:sequence>
                    <xsd:sequence minOccurs = "2" maxOccurs="5">
                           <xsd:element name="element1.4.1.1" type="xsd:string"/>
                           <xsd:element name="element1.4.1.2" type="xsd:string"/>
                    </xsd:sequence>
                    <xsd:element name="element1.4.2" type="xsd:string"/>
                    <xsd:element name="element1.4.3" type="xsd:string"/>
                </xsd:sequence>
            </xsd:sequence>
        </xsd:complexType>
    </xsd:element>
</xsd:schema>

XML:

<?xml version="1.0"?>
<root>
    <element1.1>Value 1</element1.1>
    <element1.2>Value 3</element1.2>
    <element1.3.1>Value 4</element1.3.1>
    <element1.3.2>Value 4</element1.3.2>
    <element1.4.1.1>Value 4</element1.4.1.1>
    <element1.4.1.2>Value 4</element1.4.1.2>
    <element1.4.1.1>Value 4</element1.4.1.1>
    <element1.4.1.2>Value 4</element1.4.1.2>
    <element1.4.2>Value 5</element1.4.2>
    <element1.4.3>Value 5</element1.4.3>
</root>