August 2018 - BaseX-Talk - mailman.uni-konstanz.de

Transaction management in BaseX 8.6.4
by Marc Coenegracht 08 Aug '18

08 Aug '18

Hi, A CMS occasionally recreates some existing databases of a production site. The databases are deleted and again created with the new content within a few seconds. What happens if a read operation is taking place during this process? Can it cause problems with the recreation of the DB or with the BaseX server instance? Of course it is possible to update the databases instead, but this process is a lot simpler and probably faster too. All operations are executed running xquery scripts with REST using the BaseX http server. Marc

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CSV underscore
by Giuseppe Celano 07 Aug '18

07 Aug '18

I am importing a csv file having column names with single underscores which are transformed by BaseX into double underscores. Why? Is it possible to keep the original name? Thanks. Giuseppe

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BaseX and oXygen
by Andreas Mixich 02 Aug '18

02 Aug '18

Hi, I remember, that I was able to run BaseX as execution engine for the oXygenXML XQuery editor. This seems to be impossible since a few oXygen versions. All that's left is the WebDAV part. I did not manage to run my old config, creating new ones did not help either. I remember having read a post by Michael Kay, who seemed to have some problems with XQJ not being up-to-date and some licensing issues making it impossible to fork/update or something like that. The bug-tracker and mailing-list links on the XQJ site are dead as well. -- Goody Bye, Minden jót, Mit freundlichen Grüßen, Andreas Mixich

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Can't get `cdata-section-elements` to work at all for XSLT output
by Hugh Guiney 02 Aug '18

02 Aug '18

Hello, First off, loving BaseX so far! Using it as the backend for an API I’m building. However, I’m running into an issue. I’m trying to transform my database XML into an RSS 2.0 feed. It’s mostly working fine, but I can’t output CDATA content at all, which I need to do for `content:encoded` elements. Specs: - BaseX 9.0.2 (started via basexserver script) - Saxon-HE 9.8.0.12J from Saxonica - java version "1.8.0_112" - basex 0.9.0 (NodeJS) - macOS Sierra 10.12.6 ### First Attempt I set `cdata-section-elements` in the XSLT. rss.xq: ``` xquery version "3.0"; declare option output:omit-xml-declaration "no"; let $in := <root> <child>hello</child> </root> let $style := doc( 'rss.xslt' ) return xslt:transform( $in, $style ) ``` rss.xslt: ``` <?xml version="1.0" encoding="UTF-8"?> <xsl:transform version="3.0" xmlns="http://backend.userland.com/rss2" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:content="http://purl.org/rss/1.0/modules/content/" > <xsl:output omit-xml-declaration="no" cdata-section-elements="content:encoded" /> <xsl:template match="/"> <rss version="2.0"> <content:encoded>hi</content:encoded> <content:encoded><xsl:text>howdy</xsl:text></content:encoded> <content:encoded><xsl:value-of select="//child" /></content:encoded> </rss> </xsl:template> </xsl:transform> ``` Result: ``` <?xml version="1.0" encoding="UTF-8"?> <rss xmlns="http://backend.userland.com/rss2" xmlns:content="http://purl.org/rss/1.0/modules/content/" version="2.0"> <content:encoded>hi</content:encoded> <content:encoded>howdy</content:encoded> <content:encoded>hello</content:encoded> </rss> ``` No CDATA sections. ### Second Attempt I set `cdata-section-elements` in the XQuery. rss.xq: ``` xquery version "3.0"; declare namespace content = "http://purl.org/rss/1.0/modules/content/"; declare option output:omit-xml-declaration "no"; declare option output:cdata-section-elements "content:encoded"; let $in := <root> <child>hello</child> </root> let $style := doc( 'rss.xslt' ) return xslt:transform( $in, $style ) ``` rss.xslt: [Unchanged] Result: [XPST0081] No namespace declared for 'content:encoded'. Clearly I declared the namespace two lines up. This looks like a bug to me, but any help appreciated if I’ve missed a step here. Thanks, Hugh

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Mailing list configuration or my MUA?
by Andreas Mixich 02 Aug '18

02 Aug '18

Hi, may it be some configuration issue, I have on my side, or is the mailing list set up in a way, that each reply goes to the user's personal email-address, rather than to the list's posting address? Whenever I hit "Reply" the user's email address is put into the "To" field, whereas I would assume, the list's address to go there. I just, again, sent a reply, that should go to the list to Christian, in person (sorry about that). When I hit "Reply All" I get the list's address as a "CC". -- Goody Bye, Minden jót, Mit freundlichen Grüßen, Andreas Mixich

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Re: [basex-talk] Failure with comment in editor when commenting out a regex
by Christian Grün 02 Aug '18

02 Aug '18

> > Aehm, no, that is still part of the regular expression. This does not apply anymore if you insert (: before the quotes. As Liam wrote, the regex won’t be parsed anymore in that case.

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Failure with comment in editor when commenting out a regex
by Andreas Mixich 01 Aug '18

01 Aug '18

Hi, it may be already known, that the editor seems to hick up with the parsing, when it comes around some strange combinations of chars within the comment. I just came around this: (: let $str := "http://foo.bar/barz/index.html?bla=2" let $str2 := "http://www.ics.uci.edu/pub/ietf/uri/#Related" let $str3 := "http://192.168.2.1/index.html?bla=2" let $scheme := substring-before($str, ':') let $host := analyze-string($str3,"^(([^:/?#]+):)(//([^/?#]*))([^?#]*)(\?([^#]*))(#(.*))?") return $host :) Editor/GUI warns, that: "no expression allowed in library module" and places error marker at the two slashes // after the :)( in the regex. -- Goody Bye, Minden jót, Mit freundlichen Grüßen, Andreas Mixich

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Editor: save file before running tests
by Andreas Mixich 01 Aug '18

01 Aug '18

Hi, it seems, the editor runs unit tests from the file as it is on disk. Could the user be notified of unsaved changes before running tests? I just spent some quality time trying to understand, why my assertions failed when I realized, that... ;-) -- Goody Bye, Minden jót, Mit freundlichen Grüßen, Andreas Mixich

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Wasn't there a function, that would walk a website?
by Andreas Mixich 01 Aug '18

01 Aug '18

Hi, somehow it deems to me, that I once saw a function in BaseX extensive module library, that would recursively read a web-page from remote, following all the links in it. But now I can't find it. Am I dreaming? -- Goody Bye, Minden jót, Mit freundlichen Grüßen, Andreas Mixich

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