Re: Need an XPath expression which checks that all com

Roger,


The first solution I came up with is essentially what you had to begin with.


(
    <value>A\, B</value>,
    <value>A, B</value>,
    <value>A\, B, C</value>
) !
not(tokenize(text(),',')[position() ne last()][not(ends-with(.,'\'))])


Produces:


true false false


This regex is more concise and produces the same result:


not(matches(text(),'(?:[^\\]),'))


Cheers,

Vincent

________________________________
From: Dimitre Novatchev dnovatchev@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Friday, November 3, 2017 3:11:27 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re:  Need an XPath expression which checks that all commas are
escaped

not(contains(replace(., '\\,', ''), ','))



On Fri, Nov 3, 2017 at 11:02 AM, Costello, Roger L. costello@xxxxxxxxx
<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
>



--
Cheers,
Dimitre Novatchev
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