XSD2XMLParser

XSD to XML Parser v.23.0
XSD Schema to XML Parser / Converter for Delphi 2010-XE10.3

Reads XSD schema and outputs XML structure described by schema,
  contains only default or fixed values for nodes and attributes.

Author:
  (C) 2015-2025, Grzegorz Molenda; gmnevton@o2.pl

Documentation:
  http://www.w3schools.com/schema/default.asp
  http://www.w3.org/TR/xmlschema11-1/
  http://www.w3.org/XML/Schema --> generateDS.py -- generate bindings from XML Schema D. Kuhlman 2010-01-05

Version history:
  v.1  - 2015.02.6  - GM - beta version
  v.2  - 2015.04.10 - GM - fix ParseComplexType, ParseRestriction, ParseExtension, ParseTypeReference, ParseReference
  v.3  - 2015.09.2  - GM - added TNodeInfo.CheckIfNodeHaveParent
  v.4  - 2015.12.21 - GM - fix MakeXSDImport, fixed path determination for external imports, if schemaLocation had no path, get it from namespace
  v.5  - 2016.01.12 - GM - added handling of compressed stream for HTTP protocol
  v.6  - 2016.06.2  - GM - prepare for JPK (eng: SAFT)
  v.7  - 2016.06.27 - GM - more JPK changes, TXSD2XMLParser.IsBuiltinAttr, TXSD2XMLParser.Add
  v.8  - 2016.09.8  - GM - more JPK changes, TNodeInfo.GetMappingInfo
  v.9  - 2016.10.13 - GM - changed FindNodeRecursive to FindNode with parameter set to search recursively, due to Xml.VerySimple changes
  v.10 - 2016.10.24 - GM - more changes to FindNode in Xml.VerySimple
  v.11 - 2016.11.7  - GM - more changes to FindNode in Xml.VerySimple
  v.12 - 2017.09.22 - GM - changes to Xml.VerySimple, ScanNodes procedure is now a function, that returns False for break in loop
  v.13 - 2017.10.18 - GM - added extended attribute 'default' to TXSD2XMLParser.IsBuiltinAttr
  v.14 - 2018.11.23 - GM - added detection for > Circular Type Reference < to TXSD2XMLParser.ParseTypeReference, ParseSimpleType, ParseComplexType
  v.15 - 2018.12.19 - GM - fix, skip annotations from xml schema
  v.16 - 2019.01.17 - GM - do not skip 'annotation' for element nodes, just resolve them if xsdParseAnnotations is in Options; replace ChildNodes.First by FirstChild
  v.17 - 2019.02.15 - GM - speedup conversion; added custom THashedStringList to hold parsed types; some minor fixes with regard to speedup
       + 2019.02.27 - GM - fixed MakeXSDImport to properly load shemas from local hard drive
       + 2019.03.10 - GM - added SSL/TLS support for schema downloading rutine; forced HTTP request to retrun UTF-8 encoded data
  v.18 - 2019.05.13 - GM - added "attributeGroup" parsing; moved parsing procedures to protected section and virtualized them; changed ENodeException to EXSDParseException
       +            - GM - added EXSDImportException; added error description constant strings; changed GetPascalType return values to better matching Pascal language
       + 2019.06.07 - GM - added EXSD2XMLParserException parent class; added ParseAttributeTypeReference and ParseAttributeValue
       +            - GM - fixed THashedStringList.Delete to automatically free owned objects; fixed destructor TXSD2XMLParser.Destroy to free runtime created objects (patched memory leak)
       +            - GM - speedup by fixing function TXSD2XMLParser.HasReference to detect if type is declared; changed procedure TXSD2XMLParser.ParseAttribute
  v.19 - 2020.02.25 - GM - extend union parsing, refactoring to type recognition and parsing; added more checks for not resolved nodes
       + 2020.02.29 - GM - changed GetPascalType return values to match Pascal language; ParseTypeReference refactoring and speed up
       + 2020.03.2  - GM - changed parameter naming scheme from Node to xsdNode and Parent to xmlNode for better source readability
  v.20 - 2022.08.24 - GM - fixed type reference search,
       +            - GM - added function TXSDImportList.FindType
  v.21 - 2024.06.14 - GM - fix, skip comments from xml schema
  v.22 - 2024.11.28 - GM - changed GetPascalType return values to match shortened Pascal language types: string, boolean, integer, float, date, time, datetime
  v.23 - 2025.01.13 - GM - fixed infinite loop in TXSD2XMLParser.ParseTypeReference type searching