update

code/graphviz.xqm

@@ -8,9 +8,10 @@ declare default function namespace 'apb.graphviz';
 import module namespace proc="http://basex.org/modules/proc";
 import module namespace file="http://expath.org/ns/file";
 import module namespace xslt="http://basex.org/modules/xslt";
+import module namespace random="http://basex.org/modules/random";
 
 declare namespace svg= "http://www.w3.org/2000/svg";
-declare namespace  xlink="http://www.w3.org/1999/xlink";
+declare namespace xlink="http://www.w3.org/1999/xlink";
 
 declare %private variable $gr:dotpath:=if(fn:environment-variable("DOTPATH"))
                                       then fn:environment-variable("DOTPATH")

xml/dotpatch.xsl

@@ -2,10 +2,11 @@
 <!--
   tidy up graphviz svg o/p  
 -->
-<xsl:stylesheet version="1.0" xmlns="http://www.w3.org/2000/svg" 
-xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
-xmlns:svg="http://www.w3.org/2000/svg" 
-xmlns:xlink="http://www.w3.org/1999/xlink" >
+<xsl:stylesheet version="3.0" 
+	xmlns="http://www.w3.org/2000/svg" 
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
+	xmlns:svg="http://www.w3.org/2000/svg" 
+	xmlns:xlink="http://www.w3.org/1999/xlink">
 	<xsl:param name="filter">MyFilter</xsl:param>
 	<xsl:param name="rotate" select="false()"/>
 	<xsl:output method="xml" encoding="UTF-8" indent="yes" omit-xml-declaration="yes"/>
@@ -81,11 +82,10 @@ xmlns:xlink="http://www.w3.org/1999/xlink" >
 				</filter>
 			</defs>
 		</xsl:variable>
-		<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" aa="{$aa}"
-		preserveAspectRatio="xMidYMid meet" viewBox="0 0 {$w} {$h}" text-rendering="optimizeLegibility">
-			 
+		<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" aa="{$aa}" preserveAspectRatio="xMidYMid meet" viewBox="0 0 {$w} {$h}" text-rendering="optimizeLegibility">
+
 			<xsl:copy-of select="$filters"/>
-			 
+
 			<xsl:choose>
 				<xsl:when test="rotate">
 					<g transform="rotate(90 {$w div 2} {$h div 2} )">
@@ -93,7 +93,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" >
 					</g>
 				</xsl:when>
 				<xsl:otherwise>
-				 <xsl:apply-templates select="*"/>					
+					<xsl:apply-templates select="*"/>
 				</xsl:otherwise>
 			</xsl:choose>
 		</svg>