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How do I escape this ampersand in the source XML? I tried &, but this is decoded as the actual ampersand character (&), which is invalid in HTML. So I want to escape it in such a way that it will be rendered as & in the web page that uses the XML output.
So when automated escapers and descapers do their thing with inputs and outputs, they sometimes screw up and will escape **&**amp; as **&**amp; which causes the next iteration to render as &.
An explanation of when to use encoded ampersands (&) in HTML and Javascript and when not to encode them.
The ampersand is no exception. Here's an example of what is required in order to display the code required to output an ampersand symbol. Note that the amp; bit needs to be included twice. Without including it twice, a single ampersand symbol would rendered and that's all.
Guide to XML ampersand. Here we discuss the Definition, How does ampersand work in XML?, and examples with code implementation.
What characters should be escaped with their HTML entities. For example, & is escaped with &. Should ' be escaped with '?
The HTTP protocol uses the MIME standard (RFC 1341) to specify the document type and character set. ISO SGML entity definitions are used to include characters which are missing from the character set or which would otherwise be confused with markup elements, e.g: & ampersand & < less than sign < > greater than sign > " the double ...
I understand the rationale behind why most of the HTML character Entities were created, but I don't understand the purpose behind the ampersand HTML entity. & contains more bits than a &
What is & is the first place? Because one symbol can mean different things in coding (in general), so there needs to be a way to differentiate one kind from another.
From w3c: Authors should use & (ASCII decimal 38) instead of "&" to avoid confusion with the beginning of a character reference (entity reference open delimiter).