javascript'll preserve line feeds. functions below. to replace newlines
with <br/> tags when submitting, do this:
<html:form action="*.do" onSubmit="newlinesToHtml( this );">
then to convert the other way, say when editing the same content, put
this or something like it at the bottom of the page:
<script language="JavaScript">
<!--
htmlToNewlines( document.forms[0] );
//-->
</script>
function htmlToNewlines( theForm ) {
for( var i=0; i<theForm.length; i++ ) {
if( theForm.elements[i].type == "textarea" ) {
theForm.elements[i-1].value =
theForm.elements[i-1].value.replace(/<br \/>/g,'\n');
}
}
}
function newlinesToHtml( theForm ) {
for( var i=0; i<theForm.length; i++ ) {
if( theForm.elements[i].type == "textarea" ) {
theForm.elements[i-1].value =
theForm.elements[i-1].value.replace(/\n/g, '<br/>');
}
}
}
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Monday, August 02, 2004 9:24 PM
To: Struts Users Mailing List
Subject: Re: How to render html embedded in a text-area?
Looks like I went a bit over the top with the embedded html proposal.
It seems the users would be content if whatever they'd keyed into a
text-area looked the same when subsequently re-displayed as text in a
document.
ie just preserve the line-feeds, no need for bolding etc.
Any ideas?
>If you want someone to see the visualized text as they are typing,
>you're going to need something like a "rich text" component that does
>that sort of thing in JavaScript. The standard HTML <textarea> element
>that Struts uses doesn't help you, even if the HTML elements are
>literally embedded.
>
>If you are taking content and then literally embedding it in your page
>with something like <bean:write>, you can turn off the filtering by
>saying filter="false" in the attributes of this tag. Be aware,
>however, that in doing so *you* are taking responsibility for avoiding
>cross site scripting attacks from potentially malicious users that try
>to embed JavaScript markup. Most likely, you'll need to scan the text
>and only allow HTML elements that are reasonably harmless (like <b>).
>
>
>Craig
>>
>>
>> Hi All,
>>
>> I have a struts app that lets users input into text-areas. Whatever
>> the user entered will later be displayed as text. To give users some
>> control over presentation, I'd like to allow them to enter html
>> directly into a text-area. Struts appears to convert all html to
>> harmless displayable text, so that <hr> appears quite literally as
>> '<hr>' rather than as a horizontal line.
>>
>> How can I allow users to input effective html? And is there any way
>> I
can
>> ring-fence what they enter, so that any html errors they make don't
bring
>> the whole page down?
>>
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