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RE: XPath expression which checks that all commas areescaped

• From: "Costello, Roger L." <costello@mitre.org>
• To: "xml-dev@lists.xml.org" <xml-dev@lists.xml.org>
• Date: Fri, 3 Nov 2017 21:10:40 +0000

Michael Kay wrote:

> I suspect that there must only be one
> backslash before the comma: if there
> are two ("\\,") then the comma is not
> escaped because the "\\" represents
> a real backslash.

Wow! 

I had not thought about that. 

> not(matches(replace(., '\\\\', ''), '^,|[^\\],'))

Awesome!

/Roger

• References:
  • XPath expression which checks that all commas are escaped
    • From: "Costello, Roger L." <costello@mitre.org>
  • Re: XPath expression which checks that all commas are escaped
    • From: Dimitre Novatchev <dnovatchev@gmail.com>
  • Re: XPath expression which checks that all commas are escaped
    • From: Dimitre Novatchev <dnovatchev@gmail.com>
  • Re: XPath expression which checks that all commas are escaped
    • From: Michael Kay <mike@saxonica.com>