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HTML Viewer Components for Delphi, Lazarus and C++Builder
The HtmlViewer component set consists of the THtmlViewer, TFrameViewer,
and TFrameBrowser components. All three are HTML document display components:
THtmlViewer
* The basic component.
* THtmlViewer displays single (non-frame) documents.
* It also forms the basis for the other two components.
A Delphi class with functions to read and dissect a HTML file
THTMLdom is a (Delphi) class with functions to read a HTML source file and dissect it into a tree of THTMLelement. The attributes of the HTML tags are stored in the elements. Functions are provided to select elements on the basis of the attribute values or tag names. The structure of the tree can be shown and it can be rendered as plain text.
The source is plain Delphi pascal, requiring a version that supports Tdictionary. There is no dependency on 3rd party units.
The file to be parsed...
Delphi HTMLParser
This module lets you work with HTML documents as DOM tree and use XPath for searching tags.
It is very simple way to parse HTML.
This tested with version Delphi XE5,6
Usage
Add in Uses parser.pas;
begin
HtmlTxt:= ''; //here your html
NodeList:= TNodeList.Create;
ValueList:= TStringList.Create;
DomTree:= TDomTree.Create;
DomTreeNode:= DomTree.RootNode;
If DomTreeNode.RunParse(HtmlTxt) then
begin
{your code
example:
DomTreeNode.FindXPath('//*[@id="TopBox"]/div[1]/div[@class="draw default"]'),NodeList,ValueList)}
end;
end;
Xpath support:
attributes - //*[@id="TopBox"]/div/@class
comment - //*[@id="TopBox"]/div/comment()[3]
text - //*[@id="TopBox"]/div/text()[2]
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