Regular expression gor parsing the html

Regular expression gor parsing the html

• Amde

  There are many article out on the net on parsing HTML/Xml Tags. There are problems such as the nesting between of the tags, which leads to getting the value or inner text which is more tags. I will present to you a means to extract data from an individual tag, whether it has attributes or not. If you run this on a file, you will need to drill down for each match with the expression until you cannot match ... at that point you will have text.
  
  The regex uses named capture groups so one can easily extract what you want...Tag | Attribute | Text. You are insterested in Text so access it via a match
  
  match.Groups("Text").Value
  
  
  

  RegEx for HTML Tags

  Imports System.Text.RegularExpressions
  
  ' Regular expression built for Visual Basic on: Thu, Sep 28, 2006, 01:42:30 PM
  ' Using Expresso Version: 2.1.2150, http://www.ultrapico.com
  '
  ' A description of the regular expression:
  '
  ' <
  ' [tag]: A named capture group. [\w*]
  ' Alphanumeric, any number of repetitions
  ' [attributes]: A named capture group. [[\w"'=%\s]*], zero or one repetitions
  ' Any character in this class: [\w"'=%\s], any number of repetitions
  ' >
  ' [text]: A named capture group. [.*]
  ' Any character, any number of repetitions
  ' </\k<tag>>
  ' </
  ' Backreference to capture named: tag
  '
  '
  
  Public Dim MyRegex as Regex = New Regex( _
  "<( <tag>\w*)( <attributes>[\w""'=%\s]*) >( <text>.*)</\k<tag>>", _
  RegexOptions.IgnoreCase _
  Or RegexOptions.Singleline _
  Or RegexOptions.CultureInvariant _
  Or RegexOptions.IgnorePatternWhitespace _
  Or RegexOptions.Compiled _
  )
  

  
  
  
• Regular expression gor parsing the html