WARNING: Highly technical stuff ahead. Do not proceed without a pocket protector. Here's a good puzzle for you. How do you use a literal quotation mark in quoted XML text in a string wrapped by the same kind of quotation mark in an XPath query? If you say: comments[text()="There's a 48" door."] The quotation mark after the 48 ends the text quotation, and the final part of the string (" door.",) is unexpected, and causes a syntax error. Simple enough so far, right? A literal quotation mark in an XPath string is NOT automatically escaped to it's character entity to indicate a literal quotation mark. Instead, it's naturally used as part of the XPath code, to break the XPath string. Your first impulse might be to switch quotation mark types. I disdain the switching of quotation mark types. In my opinion, the double quotation mark should always be used to indicate a string quotation, and if it must be escaped, it should be escaped. Some people prefe...
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