Biblioteca de Clases,Funciones y Sub-rutinas.

[snomar]

no recuerdo donde la encontre, pero en un proceso de migracion me salvo de un monton de trabajo, limpia los tags de html insertados en campos de texto (tipico form html), quitando o añadiendo quita los tags que nos interese.

Código:

Function RemoveHTML( strText )
    Dim TAGLIST
    TAGLIST = ";!--;!DOCTYPE;A;ACRONYM;ADDRESS;APPLET;AREA;B;BASE;BASEFONT;" &_
              "BGSOUND;BIG;BLOCKQUOTE;BODY;BR;BUTTON;CAPTION;CENTER;CITE;CODE;" &_
              "COL;COLGROUP;COMMENT;DD;DEL;DFN;DIR;DIV;DL;DT;EM;EMBED;FIELDSET;" &_
              "FONT;FORM;FRAME;FRAMESET;HEAD;H1;H2;H3;H4;H5;H6;HR;HTML;I;IFRAME;" &_
              "INPUT;INS;ISINDEX;KBD;LABEL;LAYER;LAGEND;LI;LINK;LISTING;MAP;MARQUEE;" &_
              "MENU;META;NOBR;NOFRAMES;NOSCRIPT;OBJECT;OL;OPTION;PARAM;PLAINTEXT;" &_
              "PRE;Q;S;SAMP;SCRIPT;SELECT;SMALL;SPAN;STRIKE;STRONG;STYLE;SUB;SUP;" &_
              "TABLE;TBODY;TD;TEXTAREA;TFOOT;TH;THEAD;TITLE;TR;TT;U;UL;VAR;WBR;XMP;"

    Const BLOCKTAGLIST = ";APPLET;EMBED;FRAMESET;HEAD;NOFRAMES;NOSCRIPT;OBJECT;SCRIPT;STYLE;"
    
    Dim nPos1
    Dim nPos2
    Dim nPos3
    Dim strResult
    Dim strTagName
    Dim bRemove
    Dim bSearchForBlock
    
    nPos1 = InStr(strText, "<")
    Do While nPos1 > 0
        nPos2 = InStr(nPos1 + 1, strText, ">")
        If nPos2 > 0 Then
            strTagName = Mid(strText, nPos1 + 1, nPos2 - nPos1 - 1)
	    strTagName = Replace(Replace(strTagName, vbCr, " "), vbLf, " ")

            nPos3 = InStr(strTagName, " ")
            If nPos3 > 0 Then
                strTagName = Left(strTagName, nPos3 - 1)
            End If
            
            If Left(strTagName, 1) = "/" Then
                strTagName = Mid(strTagName, 2)
                bSearchForBlock = False
            Else
                bSearchForBlock = True
            End If
            
            If InStr(1, TAGLIST, ";" & strTagName & ";", vbTextCompare) > 0 Then
                bRemove = True
                If bSearchForBlock Then
                    If InStr(1, BLOCKTAGLIST, ";" & strTagName & ";", vbTextCompare) > 0 Then
                        nPos2 = Len(strText)
                        nPos3 = InStr(nPos1 + 1, strText, "</" & strTagName, vbTextCompare)
                        If nPos3 > 0 Then
                            nPos3 = InStr(nPos3 + 1, strText, ">")
                        End If
                        
                        If nPos3 > 0 Then
                            nPos2 = nPos3
                        End If
                    End If
                End If
            Else
                bRemove = False
            End If
            
            If bRemove Then
                strResult = strResult & Left(strText, nPos1 - 1)
                strText = Mid(strText, nPos2 + 1)
            Else
                strResult = strResult & Left(strText, nPos1)
                strText = Mid(strText, nPos1 + 1)
            End If
        Else
            strResult = strResult & strText
            strText = ""
        End If
        
        nPos1 = InStr(strText, "<")
    Loop
    strResult = strResult & strText
    
    RemoveHTML = strResult
End Function