![]() |
Chilkat • HOME • Android™ • AutoIt • C • C# • C++ • Chilkat2-Python • CkPython • Classic ASP • DataFlex • Delphi DLL • Go • Java • Node.js • Objective-C • PHP Extension • Perl • PowerBuilder • PowerShell • PureBasic • Ruby • SQL Server • Swift • Tcl • Unicode C • Unicode C++ • VB.NET • VBScript • Visual Basic 6.0 • Visual FoxPro • Xojo Plugin
(Delphi DLL) Compress XML TreeDemonstrates how to compress and restore the entire subtree rooted at an XML node. The input XML, available at http://www.chilkatsoft.com/data/compress2.xml, is this: <root> <lazydog> <fox>The quick brown fox jumps over the lazy dog</fox> </lazydog> <fox>The quick brown fox jumps over the lazy dog</fox> <child> <grandchild>The quick brown fox jumps over the lazy dog</grandchild> </child> <child> <grandchild>The quick brown fox jumps over the lazy dog</grandchild> </child> </root>
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Xml; ... procedure TForm1.Button1Click(Sender: TObject); var xml: HCkXml; success: Boolean; begin xml := CkXml_Create(); // The sample input XML is available at http://www.chilkatsoft.com/data/compress2.xml success := CkXml_LoadXmlFile(xml,'compress2.xml'); if (success <> True) then begin Memo1.Lines.Add(CkXml__lastErrorText(xml)); Exit; end; // Zip compress the root node's entire subtree: success := CkXml_ZipTree(xml); // Examine the new XML document: Memo1.Lines.Add(CkXml__getXml(xml)); // This is the XML w/ the compressed subtree in Base64 encoded format: // <root><![CDATA[4+WyKcrPL7Hj5VIAApucxKrKlPx0KBcslJZfYReSkapQWJqZnK2QVJRfnqcAFFPIKs0tKFbIL0st // UigBSoN0KgC12uiDNECN00c1jyKzkjMyc1KQHZZelJiXAhElyUwkfTBnovDoYZGNPjTUAQ== // ]]></root> // Now uncompress and show that the original subtree was restored: success := CkXml_UnzipTree(xml); Memo1.Lines.Add(CkXml__getXml(xml)); CkXml_Dispose(xml); end; |
© 2000-2025 Chilkat Software, Inc. All Rights Reserved.