< XQuery

Motivation

You want to create an index of pages in a Wikibook.

Method

Fetch the Category page for the book and re-format based on the initial letter of the page, hence skipping the category level.

Simple Index page

This index page is based on the names of pages within the book. Its starting point is the Category with the same name as the book, into which all pages need to be put.

declare option exist:serialize "method=xhtml media-type=text/html";

let $book:= request:get-parameter("book",())
let $base := "http://en.wikibooks.org"
let $url := concat($base,"/wiki/Category:",$book)
let $indexPage :=httpclient:get(xs:anyURI($url),false(),())/httpclient:body
let $pages := $indexPage//div[@class="mw-category"]//li

return 

<html>
  <h1>Index of {$book}  - <a href="{$url}">Wikibooks</a> </h1>
  {
  for $letter in distinct-values($pages/substring(substring-after(.,'/'),1,1))[string-length(.) = 1]
  order by $letter
  return
  <div>
    <h3>{$letter}</h3>
    <ul>
      {for $page in $pages[starts-with(substring-after(.,'/'),$letter)]
       let $url := concat($base,$page/a/@href)
       return
      <li> <a href="{$url}">{substring-after($page,'/')}</a> </li>
      }
    </ul>
  </div>
 }
</html>

XQuery Index

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XRX

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