CODEWITHSUNDEEP
c#regex
AlphaWu
AlphaWu

Reputation: 181

How to replace   to space?

Content is

    Hello World.

<a&nbsp;href="#"&nbsp;target=_blank>hello&nbsp;World</a>

How to replace the &nbsp; in html code and keep the other &nbsp; in the text.

Upvotes: 18

Views: 87389

Answers (7)

Omar Vandio
Omar Vandio

Reputation: 1

//Funciona!!!!!!!!!!!!!!!

string a =UnHtml(text);

//---------------------------------------------------

 private static readonly Regex _tags_ = new Regex(@"<[^>]+?>", RegexOptions.Multiline | RegexOptions.Compiled);

    //add characters that are should not be removed to this regex
    private static readonly Regex _notOkCharacter_ = new Regex(@"[^\w;&#@.:/\\?=|%!() -]", RegexOptions.Compiled);

    public static String UnHtml(String html)
    {
        html = HttpUtility.UrlDecode(html);
        html = HttpUtility.HtmlDecode(html);

        html = RemoveTag(html, "<!--", "-->");
        html = RemoveTag(html, "<script", "</script>");
        html = RemoveTag(html, "<style", "</style>");

        //replace matches of these regexes with space
        html = _tags_.Replace(html, " ");
        html = _notOkCharacter_.Replace(html, " ");
        html = SingleSpacedTrim(html);

        return html;
    }

    private static String RemoveTag(String html, String startTag, String endTag)
    {
        Boolean bAgain;
        do
        {
            bAgain = false;
            Int32 startTagPos = html.IndexOf(startTag, 0, StringComparison.CurrentCultureIgnoreCase);
            if (startTagPos < 0)
                continue;
            Int32 endTagPos = html.IndexOf(endTag, startTagPos + 1, StringComparison.CurrentCultureIgnoreCase);
            if (endTagPos <= startTagPos)
                continue;
            html = html.Remove(startTagPos, endTagPos - startTagPos + endTag.Length);
            bAgain = true;
        } while (bAgain);
        return html;
    }

    private static String SingleSpacedTrim(String inString)
    {
        StringBuilder sb = new StringBuilder();
        Boolean inBlanks = false;
        foreach (Char c in inString)
        {
            switch (c)
            {
                case '\r':
                case '\n':
                case '\t':
                case ' ':
                    if (!inBlanks)
                    {
                        inBlanks = true;
                        sb.Append(' ');
                    }   
                    continue;
                default:
                    inBlanks = false;
                    sb.Append(c);
                    break;
            }
        }
        return sb.ToString().Trim();
    }

https://newbedev.com/remove-html-tags-from-string-including-nbsp-in-c

Upvotes: -2

seong-hwan kim
seong-hwan kim

Reputation: 31

string A = HttpContext.Current.Server.HtmlDecode(Text);

string A = Text.Replace("&nbsp"," ");

string A = Text.Replace("&amp;nbsp;", " ");

                           ↑ &amp;nbsp;

Upvotes: 3

Vijay Mungara
Vijay Mungara

Reputation: 83

just Replace &nbsp to string.Empty after Text Like Below..

xyz.Text.Replace("&nbsp;", string.Empty);

Upvotes: 1

jakdaniel
jakdaniel

Reputation: 231

For me the best is : 

Imports System.Web
HttpUtility.HtmlDecode(codeHtml)

Upvotes: 21

Aliostad
Aliostad

Reputation: 81680

This will find you all those strips of the text containing &nbsp:

<[^>]+?&nbsp;[^<]+?>

Fropm here you can just do a simple string replaces with the space since Regex will give you the lcoation ofthe match in your text.

Upvotes: 1

Andrey
Andrey

Reputation: 777

It's simple

youString.Replace("&nbsp;", " ");

String class http://msdn.microsoft.com/en-us/library/system.string.aspx

Replace method http://msdn.microsoft.com/en-us/library/fk49wtc1.aspx

Upvotes: 5

Tim Pietzcker
Tim Pietzcker

Reputation: 336368

Can you try searching for

(?<=<[^>]*)&nbsp;

and replacing it with a single space?

This looks for &nbsp; inside tags (preceded by a < and possibly other characters except >).

This is extremely brittle, though. For example, it will fail if you have </> symbols in strings/attributes. Better avoid getting those &nbsp; into the wrong locations in the first place.

Upvotes: 4

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