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Replace new line with <br> tag


 

Most of the multi line text areas we are using the user can input text by using line breaks. If that text used for internal purpose saving it as a single string may not be a problem.


 

But what's if we have to show that on a web page (forums, user comments, etc). We have to replace the new line character with the <br> tag. The famous way is to replace chr(13) with the <br> tag by using the Java Script. But the problem is this method is not working fine with every platform. But I have found a way to come up with and thought to share it with you.


 

function escapeVal(textarea,replaceWith)

{

textarea.value =
escape(textarea.value)

        

for(i=0; i<textarea.value.length; i++)

{


if(textarea.value.indexOf("%0D%0A") >
-1)

{

    textarea.value=textarea.value.replace("%0D%0A",replaceWith)

}


else
if(textarea.value.indexOf("%0A") >
-1)

{

    textarea.value=textarea.value.replace("%0A",replaceWith)

}


else
if(textarea.value.indexOf("%0D") >
-1)

{

    textarea.value=textarea.value.replace("%0D",replaceWith)

    }

}

textarea.value = unescape(textarea.value)

}


 

I have tested this on the Linux and windows with both Firefox and IE 7; and it worked fine.

Then the next step, sometimes we may need to convert <br> tags back to new line characters (e.g.: user tries to edit the content). On that occasion we cannot show the <br> tags. But for this we do not have to use the javascript, we can do this on the server side.


 

Replace(Comment.CommentValue,"<br>",chr(13),"all")


 

I have done this by the ColdFusion and replacing it with chr(13) works fine.
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Comments

  1. AnonymousMay 19, 2008 at 4:07 PM

    I have got the code from the techfaq360 and it works for me.

    ReplyDelete

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