Subject: Re: [xsl] Need an XPath expression which checks that all commas are escaped From: "Liam R. E. Quin liam@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Sat, 4 Nov 2017 12:50:56 -0000 |
On Fri, 2017-11-03 at 19:05 +0000, Dimitre Novatchev dnovatchev@xxxxxxxxx wrote: > not(contains(replace(., '\\,', ''), ',')) If \ is escaped with \\ then "\\," should be "\\\," so you might need to remove all \\ occurrences first i think (although this wasn't mentioned in the problem statement) Liam > > > > On Fri, Nov 3, 2017 at 11:02 AM, Costello, Roger L. costello@xxxxxxxx > g > <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hi Folks, > > > > I need an XPath 2.0 expression for this: > > > > Check that each comma in the <value> > > element is escaped with a backslash. > > > > Examples: > > > > This is good: > > > > <value>A\, B</value> > > > > This is bad: > > > > <value>A, B</value> > > > > This is also bad, because one comma is escaped but the other is > > not: > > > > <value>A\, B, C</value> > > > > I created an XPath expression to see if the text is good: > > > > tokenize(text(), ',')[position() lt last()][ends-with(., '\')] > > > > I think that is correct. Is there a simpler XPath expression to > > solve this? > > > > /Roger > > > > > -- Liam Quin, W3C, http://www.w3.org/People/Quin/ Staff contact for Verifiable Claims WG, SVG WG, XQuery WG Web slave for http://www.fromoldbooks.org/
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