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Delphi ActiveX Examples


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(Delphi ActiveX) Convert an HTML Table to Plain-Text

Converts an HTML table to plain-text.

Chilkat for Delphi Downloads

Chilkat ActiveX DLL for Delphi

Chilkat non-ActiveX DLL for Delphi

* The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_v9_5_0_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
h2x: THtmlToXml;
success: Integer;
xml: TChilkatXml;
sbPlainText: TChilkatStringBuilder;
numRows: Integer;
i: Integer;

begin
//  This example assumes the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  This example converts the following HTML fragment to plain-text showing just
//  the information desired.
//  This is the raw HTML to be converted:
// 
//  <table><tr><th>
//  <p>Property</p></th><th scope="col"><p>Type</p></th><th
//  scope="col"><p>R/W</p></th><th scope="col"><p><a
//  href="https://msdn.microsoft.com/en-us/library/office/jj164022.aspx#NavigationProperties">
//  Returned with resource</a></p></th><th
//  scope="col"><p>Description</p></th></tr><tr><td
//  data-th="Property"><p>Author</p></td><td data-th="Type"><p><a
//  href="https://msdn.microsoft.com/en-us/library/office/dn531432.aspx#bk_User">
//  SP.User</a></p></td><td data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>No</p></td><td data-th="Description"><p>Gets a value that 
// specifies the user who added the file.</p></td></tr><tr><td
//  data-th="Property"><p>CheckedOutByUser</p></td><td data-th="Type"><p><a
//  href="https://msdn.microsoft.com/en-us/library/office/dn531432.aspx#bk_User">
//  SP.User</a></p></td><td data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>No</p></td><td data-th="Description"><p>Gets a value that returns 
// the user who has checked out the file.</p></td></tr><tr><td
//  data-th="Property"><p>CheckInComment</p></td><td data-th="Type"><p><span
//  class="input">String</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that returns the comment used when a
//  document is checked in to a document library.</p></td></tr><tr><td
//  data-th="Property"><p>CheckOutType</p></td><td data-th="Type"><p><span
//  class="input">Int32</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that indicates how the file is checked
//  out of a document library. Represents an <span
//  class="input">SP.CheckOutType</span> value: Online = 0; Offline = 1; None =
//  2.</p><p>The checkout state of a file is independent of its locked
//  state.</p></td></tr><tr><td data-th="Property"><p>ContentTag</p></td><td
//  data-th="Type"><p><span class="input">String</span></p></td><td
//  data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>Yes</p></td><td data-th="Description"><p>Returns internal version 
// of content, used to validate document equality for read
//  purposes.</p></td></tr><tr><td
//  data-th="Property"><p>CustomizedPageStatus</p></td><td data-th="Type"><p><span
//  class="input">Int32</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that specifies the customization status
//  of the file. Represents an <span class="input">SP.CustomizedPageStatus</span>
//  value: None = 0; Uncustomized = 1; Customized = 2.</p></td></tr><tr><td
//  data-th="Property"><p>ETag</p></td><td data-th="Type"><p><span
//  class="input">String</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that specifies the ETag
//  value.</p></td></tr><tr><td data-th="Property"><p>Exists</p></td><td
//  data-th="Type"><p><span class="input">Boolean</span></p></td><td
//  data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>Yes</p></td><td data-th="Description"><p>Gets a value that 
// specifies whether the file exists.</p></td></tr><tr><td
//  data-th="Property"><p>Length</p></td><td data-th="Type"><p><span
//  class="input">Int64</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets the size of the file in bytes, excluding the size
//  of any Web Parts that are used in the file.</p></td></tr><tr><td
//  data-th="Property"><p>Level</p></td><td data-th="Type"><p><span
//  class="input">Byte</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that specifies the publishing level of
//  the file. Represents an <span class="input">SP.FileLevel</span> value:
//  Published = 1; Draft = 2; Checkout = 255.</p></td></tr><tr><td
//  data-th="Property"><p>ListItemAllFields</p></td><td data-th="Type"><p><a
//  href="https://msdn.microsoft.com/en-us/library/office/dn531433.aspx#bk_ListItem">
//  SP.ListItem</a></p></td><td data-th="R/W"><p>R</p></td><td data-th="Returned 
// with resource"><p>No</p></td><td data-th="Description"><p>Gets a value that 
// specifies the list item field values for the list item corresponding to the
//  file.</p></td></tr><tr><td data-th="Property"><p>LockedByUser</p></td><td
//  data-th="Type"><p><a
//  href="https://msdn.microsoft.com/en-us/library/office/dn531432.aspx#bk_User">
//  SP.User</a></p></td><td data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>No</p></td><td data-th="Description"><p>Gets a value that returns 
// the user that owns the current lock on the file.</p></td></tr><tr><td
//  data-th="Property"><p>MajorVersion</p></td><td data-th="Type"><p><span
//  class="input">Int32</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that specifies the major version of the
//  file.</p></td></tr><tr><td data-th="Property"><p>MinorVersion</p></td><td
//  data-th="Type"><p><span class="input">Int32</span></p></td><td
//  data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>Yes</p></td><td data-th="Description"><p>Gets a value that 
// specifies the minor version of the file.</p></td></tr><tr><td
//  data-th="Property"><p>ModifiedBy</p></td><td data-th="Type"><p><a
//  href="https://msdn.microsoft.com/en-us/library/office/dn531432.aspx#bk_User">
//  SP.User</a></p></td><td data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>No</p></td><td data-th="Description"><p>Gets a value that returns 
// the user who last modified the file.</p></td></tr><tr><td
//  data-th="Property"><p>Name</p></td><td data-th="Type"><p><span
//  class="input">String</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets the name of the file including the
//  extension.</p></td></tr><tr><td
//  data-th="Property"><p>ServerRelativeUrl</p></td><td data-th="Type"><p><span
//  class="input">String</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets the relative URL of the file based on the URL for
//  the server.</p></td></tr><tr><td data-th="Property"><p>TimeCreated</p></td><td
//  data-th="Type"><p><span class="input">DateTime</span></p></td><td
//  data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>Yes</p></td><td data-th="Description"><p>Gets a value that 
// specifies when the file was created.</p></td></tr><tr><td
//  data-th="Property"><p>TimeLastModified</p></td><td data-th="Type"><p><span
//  class="input">DateTime</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that specifies when the file was last
//  modified.</p></td></tr><tr><td data-th="Property"><p>Title</p></td><td
//  data-th="Type"><p><span class="input">String</span></p></td><td
//  data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>Yes</p></td><td data-th="Description"><p>Gets a value that 
// specifies the display name of the file.</p></td></tr><tr><td
//  data-th="Property"><p>UiVersion</p></td><td data-th="Type"><p><span
//  class="input">Int32</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that specifies the
//  implementation-specific version identifier of the file.</p></td></tr><tr><td
//  data-th="Property"><p>UiVersionLabel</p></td><td data-th="Type"><p><span
//  class="input">String</span></p></td><td data-th="R/W"><p>R</p></td><td
//  data-th="Returned with resource"><p>Yes</p></td><td
//  data-th="Description"><p>Gets a value that specifies the
//  implementation-specific version identifier of the file.</p></td></tr><tr><td
//  data-th="Property"><p>Versions</p></td><td data-th="Type"><p><a
//  href="https://msdn.microsoft.com/en-us/library/office/dn450841.aspx#bk_FileVersionCollection">SP.FileVersionCollection</a>
//  </p></td><td data-th="R/W"><p>R</p></td><td data-th="Returned with 
// resource"><p>No</p></td><td data-th="Description"><p>Gets a value that returns 
// a collection of file version objects that represent the versions of the
//  file.</p></td></tr></table>
// 

h2x := THtmlToXml.Create(Self);
success := h2x.SetHtmlFromFile('qa_data/htmlToText/htmlTable.html');

//  First convert to well-formed XML that makes it easier to parse.
xml := TChilkatXml.Create(Self);
xml.LoadXml(h2x.ToXml());
Memo1.Lines.Add(xml.GetXml());

//  The XML looks like this:

//  <?xml version="1.0" encoding="utf-8" ?>
//  <root>
//      <table>
//          <tr>
//              <th>
//                  <p>
//                      <text>Property</text>
//                  </p>
//              </th>
//              <th scope="col">
//                  <p>
//                      <text>Type</text>
//                  </p>
//              </th>
//              <th scope="col">
//                  <p>
//                      <text>R/W</text>
//                  </p>
//              </th>
//              <th scope="col">
//                  <p>
//                      <a href="https://msdn.microsoft.com/en-us/library/office/jj164022.aspx#NavigationProperties">
//                          <text>Returned with resource</text>
//                      </a>
//                  </p>
//              </th>
//              <th scope="col">
//                  <p>
//                      <text>Description</text>
//                  </p>
//              </th>
//          </tr>
//          <tr>
//              <td data-th="Property">
//                  <p>
//                      <text>Author</text>
//                  </p>
//              </td>
//              <td data-th="Type">
//                  <p>
//                      <a href="https://msdn.microsoft.com/en-us/library/office/dn531432.aspx#bk_User">
//                          <text>SP.User</text>
//                      </a>
//                  </p>
//              </td>
//              <td data-th="R/W">
//                  <p>
//                      <text>R</text>
//                  </p>
//              </td>
//              <td data-th="Returned with resource">
//                  <p>
//                      <text>No</text>
//                  </p>
//              </td>
//              <td data-th="Description">
//                  <p>
//                      <text>Gets a value that specifies the user who added the file.</text>
//                  </p>
//              </td>
//          </tr>
//  ...
// 

Memo1.Lines.Add('------------------------------------------------');

//  Iterate over the XML, skipping the 1st table row, and emit
//  the Property and Description for each row.

sbPlainText := TChilkatStringBuilder.Create(Self);

//  First move to the "table" node.
xml.FirstChild2();

//  Get the number of rows.
numRows := xml.NumChildren;

//  Indexing is 0-based, meaning the 1st row (i.e. the table headers) is at index 0.
//  Skip it by starting with index 1.
i := 1;
while i < numRows do
  begin
    xml.I := i;

    sbPlainText.Append(xml.GetChildContent('tr[i]|/A/td,data-th,Property|p|text'));
    sbPlainText.Append(': ');
    sbPlainText.AppendLine(xml.GetChildContent('tr[i]|/A/td,data-th,Description|p|text'),1);

    i := i + 1;
  end;

Memo1.Lines.Add(sbPlainText.GetAsString());

//  The output is:

//  Author: Gets a value that specifies the user who added the file.
//  CheckedOutByUser: Gets a value that returns the user who has checked out the file.
//  CheckInComment: Gets a value that returns the comment used when a document is checked in to a document library.
//  CheckOutType: Gets a value that indicates how the file is checked out of a document library. Represents an
//  ContentTag: Returns internal version of content, used to validate document equality for read purposes.
//  CustomizedPageStatus: Gets a value that specifies the customization status of the file. Represents an
//  ETag: Gets a value that specifies the ETag value.
//  Exists: Gets a value that specifies whether the file exists.
//  Length: Gets the size of the file in bytes, excluding the size of any Web Parts that are used in the file.
//  Level: Gets a value that specifies the publishing level of the file. Represents an
//  ListItemAllFields: Gets a value that specifies the list item field values for the list item corresponding to the file.
//  LockedByUser: Gets a value that returns the user that owns the current lock on the file.
//  MajorVersion: Gets a value that specifies the major version of the file.
//  MinorVersion: Gets a value that specifies the minor version of the file.
//  ModifiedBy: Gets a value that returns the user who last modified the file.
//  Name: Gets the name of the file including the extension.
//  ServerRelativeUrl: Gets the relative URL of the file based on the URL for the server.
//  TimeCreated: Gets a value that specifies when the file was created.
//  TimeLastModified: Gets a value that specifies when the file was last modified.
//  Title: Gets a value that specifies the display name of the file.
//  UiVersion: Gets a value that specifies the implementation-specific version identifier of the file.
//  UiVersionLabel: Gets a value that specifies the implementation-specific version identifier of the file.
//  Versions: Gets a value that returns a collection of file version objects that represent the versions of the file.
// 
end;

 

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