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[fix] if else #3 and java ns

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This commit is contained in:
Andy Bunce 2025-10-06 17:33:53 +01:00
parent f96c64286d
commit 3cafc6af04
1 changed files with 29 additions and 14 deletions
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43
src/Pdfbox3.xqm
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@ -1,9 +1,21 @@
xquery version '3.1';
(:~
A BaseX 10.7+ interface to pdfbox3 https://pdfbox.apache.org/ ,
requires pdfbox jars on classpath, in lib/custom or xar
@note following the java source the terms outline and bookmark
refer to the same concept. Also label and (page)range are used interchangably
A BaseX 10.7+ interface for <a href="https://pdfbox.apache.org/" target="_blank">Apache PDFBox®</a> - A Java PDF Library,
It requires the Pdfbox jars to be on the classpath, or a EXPath package (xar) installation.
<h3>Terms</h3>
The following terms are used:
<dl>
<dt>bookmark</dt>
<dd>A bookmark has a title and a pageindex. It may contain nested bookmarks.</dd>
<dt>outline</dt>
<dd>The outline is the tree of bookmarks defined in the PDF. It may be empty.</dd>
<dt>page range</dt>
<dd>A page range defines the page numbering schema in operation from a certain pageIndex until a subsequent range is set. </dd>
<dt>page label</dt>
<dd>A page label defines <code>style</code>: Roman, Decimal etc, <code>start</code>: the index to start from (default 1) and <code>prefix</code>: an optional string to prefix to the page label e.g "Vol1:"</dd>
</dl>
@note tested with pdfbox-app-3.0.5.jar
@see https://pdfbox.apache.org/download.cgi
@javadoc https://javadoc.io/static/org.apache.pdfbox/pdfbox/3.0.5/
@ -29,19 +41,16 @@ declare namespace PDFRenderer="java:org.apache.pdfbox.rendering.PDFRenderer";
declare namespace PDMetadata="java:org.apache.pdfbox.pdmodel.common.PDMetadata";
declare namespace COSInputStream="java:org.apache.pdfbox.cos.COSInputStream";
declare namespace rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
declare namespace RandomAccessReadBuffer="java:org.apache.pdfbox.io.RandomAccessReadBuffer";
declare namespace RandomAccessReadBufferedFile = "java:org.apache.pdfbox.io.RandomAccessReadBufferedFile";
declare namespace PDRectangle="java:org.apache.pdfbox.pdmodel.common.PDRectangle";
declare namespace File ="java:java.io.File";
declare namespace rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
(:~ "With-document" pattern: open pdf,apply $fn function, close pdf
(:~ open $pdf,apply $fn function, close pdf ("With-document" pattern)
creates a local pdfobject and ensures it is closed after use
e.g pdfbox:with-pdf("path...",pdfbox:page-text(?,5))
:)
@ -103,7 +112,11 @@ as xs:string{
PDDocument:save($pdf, File:new($savepath)),$savepath
};
(:~ Create binary representation (xs:base64Binary) of <code>$pdf</code> object :)
(:~ Create binary representation (<code>xs:base64Binary</code>) of <code>$pdf</code> object
@param $pdf pdf object, created by pdfbox:open
@see #pdfbox:open
@see #pdfbox:with-pdf
:)
declare function pdfbox:binary($pdf as item())
as xs:base64Binary{
let $bytes:=Q{java:java.io.ByteArrayOutputStream}new()
@ -290,7 +303,8 @@ as map(*)*{
=>PDDocumentCatalog:getDocumentOutline()
return if(exists($outline))
then pdfbox:outline($pdf,PDOutlineItem:getFirstChild($outline))
then pdfbox:outline($pdf,PDOutlineItem:getFirstChild($outline))
else ()
}
};
@ -357,6 +371,7 @@ as item()?
then PDDocument:getDocumentCatalog($pdf)
=>PDDocumentCatalog:getPages()
=>PDPageTree:indexOf($page)
else ()
};
(:~ Return new PDF doc with pages from $start to $end as xs:base64Binary, (1 based)
@ -428,7 +443,7 @@ as xs:string?{
return string-join(($page,
if(empty($style)) then "-" else $style,
if(($start eq 1)) then "" else $start,
if(exists($prefix)) then '*' || $prefix (:TODO double " :)
if(exists($prefix)) then '*' || $prefix else "" (:TODO double " :)
))
};
@ -509,7 +524,7 @@ declare %private function pdfbox:do-until(
then $fn($input,$action,$predicate)
else let $hof:=function-lookup(QName('http://basex.org/modules/hof','until'), 3)
return if(exists($hof))
then $hof($predicate(?,0),$action(?,0),$input)
else error(xs:QName('pdfbox:do-until'),"No implementation do-until found")
then $hof($predicate(?,0),$action(?,0),$input)
else error(xs:QName('pdfbox:do-until'),"No implementation do-until found")
};