맞춤 태그를 <a href> tags

Question

In my ASP.NET application I have a plain text field. I want to allow the user to be able to enter URL's in the following format:

[url="http://www.google.com"]Google[/url] 

These would be saved to a database directly as they were entered. On retrieveal however, I'd like to convert the above into the following HTML format to make it active on-screen:

<a href="http://www.google.com">Google</a> 

The reason for this approach is to avoid tampering with the built-in ASP.NET validation routines, which trigger an error when it sees <a in a form input string.

I've seen other examples on StackOverflow where RegEx is used to parse the string, however, I cannot find anything that I can follow where multiple occurrences of [url...] may exist in a single string.

Can anyone please offer me an example of how to parse such a string, say...

Try this funky new search engine: [url="http://www.google.com"]Google[/url] Or this older one from back in the day: [url="http://uk.altavista.com"]AltaVista[/url]

...to convert each occurrence into the desired format? RegEx isn't my strong-point sadly.

Thanks.

Answer 1

As I understood, you need a BBCode converter for ASP.NET, which you can find here으로 바꿉니다. 주어진 링크에서

예 :

string BBCodeSyntax = "[url={webaddress}]{display}[/url]"; 
string HtmlSyntax = "<a href=\"{webaddress}\">{display}</a>"; 
string Fields = "{webaddress};{display}"; 

string input = "For those who code - [url=http://www.codeproject.com]The CodeProject[/url]. This website contains lots of articles about programming. For open source project hosting from Microsoft, you may have a look at [url=http://www.codeplex.com]Codeplex.com[/url]."; 

string output = BBCode.ConvertToHtml(input, BBCodeSyntax, HtmlSyntax, Fields); 
return output; 

Answer 2

함자 DzCyberDeV의 의견에 따라 나는 RegexHero 내에서 정규식 패턴을 사용 RegExHero 심지어 ASP.NET을 생성 발견했다. 따라서 정확히 아래의 간단한 코드는 내가 필요로하는 결과를 달성 : 나는 [정규식 대화방에서] 대답

Dim s As String = txt_input.Text.Trim 
Dim strRegex As String = "\[url\s?=\s?""?(.*?)""?\](.*?)\[\/url\]" 
Dim myRegex As New Regex(strRegex) 
Dim strReplace As String = "<a href=""$1"">$2</a>" 
ltl_output.Text = myRegex.Replace(s, strReplace)