Thanks. Close. Tried it and the SPAN tags remain...
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Question
Need regex to strip all HTML tags, except these
Hi all,
I need a javascript function that will accept a string of up to 8000 characters, and remove all HTML tags except the following:
<EM></EM>
<STRONG></STRONG>
<U></U>
<em></em>
<strong></strong>
<u></u>
Optionally, the function should also strip attributes from any <P></P> tags, leaving behind the <P> tags without attributes. Example:
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 20pt"><U>Test</U></SPAN><F
Becomes:
<P><U>Test</U> Hello. This is the <STRONG>example.</STRONG><
I'll increase points for a working solution that includes the <p> attributes portion.
Thanks,
SquareHead
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Answers
Yes, my second regexp was errorous.
/..|p|../i also matches span. Should have been /^..|p|..$/i
<html>
<head>
<script type="text/javascript">
function stripHtml(str) {
var newstr = str;
var regExp = /<\/?(\w+)(.*?)>/ig;
i = 0;
while(i++ < 10 && (mt = regExp.exec(str))) {
oldstr = mt[0];
tag = mt[1];
pars = mt[2];
if(tag.match(/^(em|strong|
repl = oldstr.replace(pars,'');
} else {
repl = '';
}
newstr = newstr.replace(oldstr, repl, "g");
}
regexp = null;
return newstr;
}
</script>
</head>
<body>
<form>
<p>
<b>In</b>
<textarea name="myIn" rows="10" cols="60"><P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 20pt"><U>Test</U></SPAN><F
<br/><input type="button" value="go" onclick="this.form.myText.
</p>
<p>
<b>Out</b>
<textarea name="myText" rows="10" cols="60"></textarea>
</p>
</form>
</html>
-r-
Example:
<P class=MsoNormal style="MARGIN: 0in 0in 0pt" bla="sdjhhs f dhjfs j sdfhksj"><SPAN style="FONT-SIZE: 20pt"><U>Test</U></SPAN><F
Result:
<P><U>Test</U> Hello. This is the <STRONG>example.</STRONG><
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by: RoonaanPosted on 2006-04-17 at 10:43:58ID: 16470879
Here you go:
<html>
<head>
<script type="text/javascript">
function stripHtml(str) {
var newstr = str;
var regExp = /<\/?(\w+)(.*?)>/ig;
i = 0;
while(i++ < 10 && (mt = regExp.exec(str))) {
oldstr = mt[0];
tag = mt[1];
pars = mt[2];
if(tag.match(/em|strong|u|
repl = oldstr.replace(pars,'');
} else {
repl = '';
}
newstr = newstr.replace(oldstr, repl);
}
return newstr;
}
</script>
</head>
<body>
<form>
<p>
<b>In</b>
<textarea name="myIn" rows="10" cols="60"><P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 20pt"><U>Test</U></SPAN><F
<br/><input type="button" value="go" onclick="this.form.myText.
</p>
<p>
<b>Out</b>
<textarea name="myText" rows="10" cols="60"></textarea>
</p>
</form>
</html>
-r-