THtmlNode() > Overloaded operators

oTHtmlNode + <cTagName>

Opens a new HTML node

Syntax

+ <cTagName>

Arguments

<cTagName>: This is a character string holding a valid HTML tag name.

Description

The overloaded plus operator accepts a THtmlNode object as left operand, and a character string beginning with a valid HTML tag name as right operand. If the right operand does not start with a valid HTML tag name, or if the left operand is an HTML node that cannot have child nodes, a runtime error occurs. Otherwise, a new THtmlNode object is added as child node to the self object and returned. For example:

   oDoc  := THtmlDocument():new()
   oNode := oDoc:body + "h1"      // opening tag

   ? oNode:htmlTagName            // result: h1
   oNode:text := "Heading"

   oNode := oNode - "h1"          // closing tag
   ? oNode:htmlTagName            // result: body

   ? oDoc:body:toString()
   ** output
   // <body>
   // <h1>Heading</h1>
   // </body>

The right operand may include HTML attributes valid for the HTML tag. In this case, a new HTML node with attributes is created and returned. For example:

   oDoc  := THtmlDocument():new()

   oNode := oDoc:body + "table border=0 cellspacing=0"
   oNode := oNode     + "tr"
   oNode := oNode     + "td nowrap"

   oNode:text         := "Table cell content"

   ? oDoc:body:toString()
   ** output
   // <body>
   // <table border=0 cellspacing=0>
   //  <tr>
   //   <td nowrap>Table cell content
   // </table>
   // </body>