Subject: RE: How do I output an ampersand? From: Chris Maden <crism@xxxxxxxxxxxxx> Date: Sat, 18 Mar 2000 16:09:45 -0800 (PST) |
On Sat, 18 Mar 2000, James Lynn wrote: > > From: Chris Knoll > > > > That's funny, I wasn't aware that HTML encoding was valid in a > > URL, i thought > > the proper URL encoding was to use the %### convension. > > Quite - I suspect IE5 is handling non-standard input rather than > giving an error, hence my desire to actually get a real ampersand. Not quite. Here we go again on levels of escaping: Some characters are meaningful in a URL. Sometimes you want them to really be there; sometimes you don't. When you don't, you hex-escape them. For example, let's say you want to run silly.cgi with the parameters "volt" equals "5", "amp" equals "7", and "company" equals "AT&T". The ampersand is meaningful to a URL, so you need to escape it as %26. Then you string together your URL. Some broken systems still use ampersands to join CGI parameters, even though a semicolon has been recommended practice since before HTML 2.0 was standardized. So then you have a URL of silly.cgi?volt=5&=7&company=AT%26T. Now you want to put this URL into an attribute in an HTML or XML file. The ampersand is a meaningful character there, and since you don't want & recognized as a (broken) entity reference, you must escape it, too: <a href="silly.cgi?volt=5&amp=7&company=AT%26T">. To make a long story short (too late!), the XSL implementation is correct when it turns your output ampersands into &. -Chris XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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