Subject: Re: [xsl] Need an XPath expression which checks that all commas are escaped From: "Dimitre Novatchev dnovatchev@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Sat, 4 Nov 2017 15:35:09 -0000 |
>> 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 Yes, and it would become: not(contains(replace(replace(., '\\\\', ''), '\\,', ''), ',')) but after Michael Kay's solution on xml-dev yesterday, this is old news. Cheers, Dimitre On Sat, Nov 4, 2017 at 5:51 AM, Liam R. E. Quin liam@xxxxxx <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > 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/ > -- Cheers, Dimitre Novatchev --------------------------------------- Truly great madness cannot be achieved without significant intelligence. --------------------------------------- To invent, you need a good imagination and a pile of junk ------------------------------------- Never fight an inanimate object ------------------------------------- To avoid situations in which you might make mistakes may be the biggest mistake of all ------------------------------------ Quality means doing it right when no one is looking. ------------------------------------- You've achieved success in your field when you don't know whether what you're doing is work or play ------------------------------------- To achieve the impossible dream, try going to sleep. ------------------------------------- Facts do not cease to exist because they are ignored. ------------------------------------- Typing monkeys will write all Shakespeare's works in 200yrs.Will they write all patents, too? :) ------------------------------------- Sanity is madness put to good use. ------------------------------------- I finally figured out the only reason to be alive is to enjoy it.
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