<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Adding capability to XQuery 3.1 at this stage will require a more convincing justification than “I felt the need for this in some edge cases”.</div><div class=""><br class=""></div><div class="">Are there other functional languages that offer such a feature?</div><div class=""><br class=""></div><div class="">Michael Kay</div><div class="">Saxonica</div><br class=""><div><blockquote type="cite" class=""><div class="">On 6 Jul 2015, at 08:30, Christophe Geiser <<a href="mailto:christophe.geiser@e-smile.org" class="">christophe.geiser@e-smile.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="markdown-here-wrapper" style=""><div style="margin: 0.8em 0px !important;" class="">Dear all,<br class="">Thanks Wouter for initiating this discussion. </div><div style="margin: 0.8em 0px !important;" class="">I’d like to add another feature request to the current implementation of the language : the ability to retrieve the current function being executed. I could not find a work-around for implementing this, and - now with functions being first-class citizens of the language - felt the need for this capability in some edge cases.</div><div style="margin: 0.8em 0px !important;" class="">Something like :</div>
<pre style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;font-size:1em;line-height:1.2em;margin:1.2em 0px" class=""><code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);border-radius:3px;display:inline;background-color:rgb(248,248,248);white-space:pre;overflow:auto;border-radius:3px;border:1px solid rgb(204,204,204);padding:0.5em 0.7em;display:block;padding:0.5em;color:rgb(51,51,51);background:rgb(248,248,255)" class="">
declare function local:test($arg) {
let $function := function-item() (: would return local:test#1 as function item :)
return ()
};
</code></pre><div style="margin: 0.8em 0px !important;" class="">Thanks and best regards,<br class="">Christophe Geiser</div><div style="margin: 0.8em 0px !important;" class=""><br class=""></div>
<hr class=""><div style="margin: 0.8em 0px !important;" class="">Hello,<br class=""> I’ve been working with the recent xquery 3.1 implementation in the develop branch eXist-db. I encountered some cases that were quite hard to work around: </div>
<ul style="margin:1.2em 0px;padding-left:2em" class="">
<li style="margin:0.5em 0px" class="">the lack of array:index-of() - the lack of the iterator index in arrayfor-each and related higher-order functions<br class="">Perhaps someone of the workgroup is available to discuss those cases. <h2 id="thanks-wouter-" style="margin:1.3em 0px 0.3em;padding:0px;font-weight:bold;font-size:1.4em;border-bottom-width:1px;border-bottom-style:solid;border-bottom-color:rgb(204,204,204)" class="">Thanks, Wouter </h2>
</li>
</ul><div style="margin: 0.8em 0px !important;" class="">W.S. Hager Lagua Web Solutions <a href="http://lagua.nl/" class="">http://lagua.nl</a> </div>
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