xsd2xml

This is a simple python script to help you generate some xmls if you have a xsd. It uses the xmlschema library to parse the given schema document and then populate some hardcoded values. check the following example.

XSD

<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="root" type="root"/>
  <xs:complexType name="root">
    <xs:choice>
      <xs:sequence>
        <xs:element name="empno" type="xs:string"/>
        <xs:element name="designation" type="xs:string"/>
      </xs:sequence>
      <xs:sequence>
        <xs:element name="name" type="xs:string"/>
        <xs:element name="age" type="xs:unsignedByte"/>
      </xs:sequence>
      <xs:element name="sku" type="SKU"/>
      <xs:element name="ppk" type="xs:integer"/>
      <xs:element name="alo" type="xs:date"/>
      <xs:any minOccurs="0"/>
      <xs:element name="shoesize">
        <xs:complexType>
          <xs:simpleContent>
            <xs:extension base="xs:integer">
              <xs:attribute name="country" type="xs:string"/>
            </xs:extension>
          </xs:simpleContent>
        </xs:complexType>
      </xs:element>
      <xs:element name="jeans_size">
        <xs:simpleType>
          <xs:union memberTypes="sizebyno sizebystring"/>
        </xs:simpleType>
      </xs:element>
      <xs:element name="intvalues" type="valuelist"/>
    </xs:choice>
  </xs:complexType>
  <xs:simpleType name="SKU">
    <xs:restriction base="xs:string">
      <xs:pattern value="\d{3}\w{3}"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="sizebyno">
    <xs:restriction base="xs:positiveInteger">
      <xs:maxInclusive value="42"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="sizebystring">
    <xs:restriction base="xs:string">
      <xs:enumeration value="small"/>
      <xs:enumeration value="medium"/>
      <xs:enumeration value="large"/>
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="valuelist">
    <xs:list itemType="xs:integer"/>
  </xs:simpleType>
</xs:schema>

XML

<?xml version="1.0" encoding="UTF-8"?>
<!--complex content-->
<root xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <!--START:[choice]-->
  <!--next 9 items are in a [choice] group-->
  <!--START:[sequence]-->
  <!--next 2 items are in a [sequence] group-->
  <empno>lol</empno>
  <designation>lol</designation>
  <!--END:[sequence]-->
  <!--START:[sequence]-->
  <!--next 2 items are in a [sequence] group-->
  <name>lol</name>
  <age>17</age>
  <!--END:[sequence]-->
  <sku>lol</sku>
  <ppk>-176</ppk>
  <alo>2004-04-12</alo>
  <!--next 1 item is optional (minOcuurs = 0)-->
  <_ANY_/>
  <!--simple content-->
  <shoesize>-176</shoesize>
  <!--simpletype: union.-->
  <!--default: using the 1st type-->
  <jeans_size>+3</jeans_size>
  <!--simpletype: list-->
  <intvalues>-176</intvalues>
  <!--END:[choice]-->
</root>

The command to get the above xml:

$ python xsd2xml.py -s 1.xsd -e root | xmllint --format -

Usage

$ ./xsd2xml.py -h
usage: adv.xsd2xml.py [-h] -s XSDFILE -e ELEMENT [-c]

optional arguments:
  -h, --help            show this help message and exit
  -s XSDFILE, --schema XSDFILE
                        select the xsd used to generate xml
  -e ELEMENT, --element ELEMENT
                        select an element to dump xml
  -c, --choice          enable the <choice> mode

Handle `<choice>`

You can generate all in a choice group (as the above example shows) or you can generate the 1st element in the choice group by the "-c" option.

command

$ python xsd2xml.py -s 1.xsd -e root -c | xmllint --format -

xml

<?xml version="1.0" encoding="UTF-8"?>
<!--complex content-->
<root xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <!--START:[choice]-->
  <!--next item is from a [choice] group with size=9-->
  <!--START:[sequence]-->
  <!--next 2 items are in a [sequence] group-->
  <empno>lol</empno>
  <designation>lol</designation>
  <!--END:[sequence]-->
  <!--END:[choice]-->
</root>

Attributes from main XSD not saved to XML and minor issue with remove_ns()

Hello, I have started using your xsd2xml tool (special thanks for your work), more specifically the updated branch from @seregagl, and I have encountered two main issues (being the second the one the most important, for which I have yet to find a fix). Since I am completely new to XSD syntax, they may sound simple and banal, for which I apologize.

Function remove_ns() being passed "None" as "name". This causes the function to crash, trying to index None[0]. The following XSD attribute was the one causing the issue, although I am unsure why, since it was correctly validated by other XSD-checkers.

<xs:attribute name="match_edge">
      <xs:simpleType>
          <xs:restriction base="xs:string">
              <xs:enumeration value="full">
              </xs:enumeration>
              <xs:enumeration value="start">
              </xs:enumeration>
              <xs:enumeration value="end">
              </xs:enumeration>
          </xs:restriction>
      </xs:simpleType>
 </xs:attribute>

Attributes that are defined within the main XSD are not saved to the output XML file. In this case some of the attributes from the XSD (first code block) were completely omitted in the output XML (second code block). Once again I am unsure why, and it was previously validated.

<xs:element name="FILES">
    <xs:complexType>
        <xs:sequence maxOccurs="1" minOccurs="1">
            <xs:element name="FILE" maxOccurs="unbounded">
              <xs:complexType>
                  <xs:attribute name="filename" type="xs:string" use="required">
                  </xs:attribute>
      </xs:complexType>
</xs:element>

<FILES>
      <FILE>
</FILE>
</FILES>

Other attributes from were correctly saved to the output XML, although in this case they were defined in a common space, instead of being directly specified within the said main XSD.

<xs:complexType name="NameType">
    <xs:simpleContent>
        <xs:extension base="xs:string">
            <xs:attribute name="label" use="optional" type="xs:string"/>
        </xs:extension>
    </xs:simpleContent>
</xs:complexType>

<TAG label="String">String</PRIMARY_ID>

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