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X3dToJson.xslt
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X3dToJson.xslt
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<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (c) 2001-2023 held by the author(s). All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the names of the Naval Postgraduate School (NPS)
Modeling Virtual Environments and Simulation (MOVES) Institute
(https://www.nps.edu and https://www.MovesInstitute.org)
nor the names of its contributors may be used to endorse or
promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
-->
<!--
<head>
<meta name="title" content="X3dToJson.xslt"/>
<meta name="author" content="Don Brutzman"/>
<meta name="contributor" content="John Carlson provided lots of design guidance and co-development support"/>
<meta name="contributor" content="Roy Walmsley fixed recursive array overflows through tokenization and also helped with encoding development"/>
<meta name="created" content="8 October 2014"/>
<meta name="description" content="XSLT stylesheet to convert X3D source into JSON syntax."/>
<meta name="reference" content="https://www.web3d.org/x3d/stylesheets/X3dToJson.html"/>
<meta name="reference" content="https://www.web3d.org/wiki/index.php/X3D_JSON_Encoding"/>
<meta name="reference" content="https://www.freeformatter.com/xml-to-json-converter.html"/>
<meta name="reference" content="https://json.org"/>
<meta name="reference" content="https://www.ecma-international.org/publications/files/ECMA-ST/ECMA-404.pdf"/>
<meta name="reference" content="https://www.w3.org/TR/xslt"/>
<meta name="reference" content="XML Spy, https://www.xmlspy.com"/>
<meta name="reference" content="SAXON XML Toolkit, https://saxon.sourceforge.net"/>
<meta name="generator" content="X3D-Edit 4.0, https://savage.nps.edu/X3D-Edit"/>
<meta name="identifier" content="https://www.web3d.org/x3d/stylesheets/X3dToJson.xslt"/>
<meta name="reference" content="https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/stylesheets/X3dToJson.xslt"/>
<meta name="license" content="license.html"/>
</head>
-->
<!--
=======================================================================
X3D JSON Design Considerations and X3dToJson.xslt Converter Status
https://www.web3d.org/x3d/stylesheets/X3dToJson.html
=======================================================================
-->
<xsl:stylesheet version="2.0" exclude-result-prefixes="ds saxon"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
xmlns:saxon="http://saxon.sf.net/">
<!--
xmlns="http://www.w3.org/TR/xhtml1/strict"
xmlns:fn="http://www.w3.org/2005/xpath-functions" -->
<xsl:param name="stripComments"><xsl:text>false</xsl:text></xsl:param>
<xsl:param name="stripDefaultAttributes"><xsl:text>true</xsl:text></xsl:param>
<xsl:param name="indentEnabled"><xsl:text>true</xsl:text></xsl:param>
<xsl:param name="normalizeCommentWhitespace"><xsl:text>true</xsl:text></xsl:param>
<xsl:param name="sourceTextMode"><xsl:text>strings</xsl:text></xsl:param> <!-- escaped | strings | plaintext -->
<xsl:param name="traceEnabled" ><xsl:text>false</xsl:text></xsl:param>
<xsl:param name="traceScripts" ><xsl:text>false</xsl:text></xsl:param>
<!-- TODO future feature: whether to apply changes to meta references, url file extensions, etc. -->
<xsl:param name="updateContent" ><xsl:text>false</xsl:text></xsl:param>
<xsl:variable name="x3dVersion" select="normalize-space(//X3D/@version)"/>
<xsl:variable name="isX3D3" select="starts-with($x3dVersion,'3')"/>
<xsl:variable name="isX3D4" select="starts-with($x3dVersion,'4')"/>
<!-- saxon9he problem: fails due to line length, licensing issue: saxon:line-length="10000" -->
<!-- https://stackoverflow.com/questions/23084785/xslt-avoid-new-line-added-between-element-attributes/43301327#43301327 -->
<xsl:output method="text" encoding="UTF-8"/> <!-- output methods: xml html text -->
<!-- encodings references -->
<!-- https://www.sagehill.net/docbookxsl/SpecialChars.html -->
<!-- https://stackoverflow.com/questions/9328882/encoding-special-chars-in-xslt-output -->
<!-- https://stackoverflow.com/questions/4901133/json-and-escaping-characters -->
<!-- global variables -->
<!-- Identification of unit-test scenes rule is used in X3D Schematron and X3dToJson.xslt -->
<xsl:variable name="isTestScene"
select="(//meta[(@name='error') or (@name='warning') or (@name='hint') or (@name='info') or (@name='TODO')][starts-with(lower-case(@content),'test')]) or
(//meta[(@name='title')][starts-with(lower-case(@content),'test') or ends-with(lower-case(@content),'test.x3d')])"/>
<xsl:template match="/"> <!-- process root of input document -->
<xsl:apply-templates select="X3D | AllX3dElementsAttributes"> <!-- process top-level X3D element. DOCTYPE dropped, external comments handled next. -->
<xsl:with-param name="indent"><xsl:text>0</xsl:text></xsl:with-param>
</xsl:apply-templates>
<!-- report if comments encountered outside of the X3D document, do not convert/move them into the JSON object -->
<!-- note preceding:: and following:: constraints refer to the position of the X3D element with respect to the comment, hence logic appears reversed -->
<xsl:if test="comment()[following::X3D]">
<xsl:message>
<xsl:text>Warning: comments preceding the top-level X3D element are not translated as part of the X3D JSON object file.</xsl:text>
<xsl:text> </xsl:text>
<xsl:for-each select="comment()[following::X3D]">
<xsl:text><!--</xsl:text>
<xsl:value-of select="."/>
<xsl:text>--></xsl:text>
<xsl:text> </xsl:text>
</xsl:for-each>
</xsl:message>
</xsl:if>
<xsl:if test="comment()[preceding::X3D]">
<xsl:message>
<xsl:text>Warning: comments following the X3D element are not translated as part of the X3D JSON object file.</xsl:text>
<xsl:text> </xsl:text>
<xsl:for-each select="comment()[preceding::X3D]">
<xsl:text><!--</xsl:text>
<xsl:value-of select="."/>
<xsl:text>--></xsl:text>
<xsl:text> </xsl:text>
</xsl:for-each>
</xsl:message>
</xsl:if>
</xsl:template>
<xsl:template name="comments-elements-ROUTEs"> <!-- rule to process all child comments, elements and ROUTEs (X3D nodes and scene-graph structure statements) -->
<xsl:param name="indent"><xsl:text>0</xsl:text></xsl:param>
<!-- debug: fieldValue trace
<xsl:if test="(local-name() = 'fieldValue')">
<xsl:text> with contained nodes found: </xsl:text>
<xsl:text>@name=</xsl:text>
<xsl:value-of select="@name"/>
<xsl:text>, $parentName=</xsl:text>
<xsl:value-of select="local-name(..)"/>
<xsl:text> @name=</xsl:text>
<xsl:value-of select="../@name"/>
</xsl:if>
-->
<xsl:variable name="debugTrace" select="false()"/><!-- true() false() -->
<xsl:if test="$debugTrace">
<xsl:message>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>* comments-elements-ROUTEs: </xsl:text>
<xsl:value-of select="local-name()"/>
<xsl:text> with </xsl:text>
<xsl:value-of select="count(*)"/>
<xsl:text> child nodes found:</xsl:text>
<xsl:for-each select="*">
<xsl:text> </xsl:text>
<xsl:value-of select="local-name()"/>
</xsl:for-each>
</xsl:message>
</xsl:if>
<!-- No commenting mechanism proved in JSON specification. Nevertheless comments are included in X3D JSON encoding
in order to support round-trip interoperability among X3D encodings. -->
<!-- each child element is represented in a JSON array of JSON objects -->
<!-- process entire set of immediate-child peers in an ordered fashion: comments first, field/fieldValue next, IS next, elements next, ROUTEs last -->
<xsl:variable name="allContainedCommentsElements">
<!-- order gets shuffled a bit due to JSON unique-key requirements
<xsl:apply-templates select="comment()">
<xsl:with-param name="indent" select="$indent"/>
</xsl:apply-templates> -->
<xsl:apply-templates select="* | comment()">
<!-- listed in reverse order -->
<!-- sorting does not appear to be necessary (and makes comment sorting problematic), so skip it
<xsl:sort select="not((local-name() = 'IS') or (local-name() = 'field') or (local-name() = 'fieldValue'))"/>
<xsl:sort select=" (local-name() = 'IS')"/>
<xsl:sort select=" (local-name() = 'field')"/>
<xsl:sort select=" (local-name() = 'fieldValue')"/> -->
<xsl:with-param name="indent" select="$indent"/>
</xsl:apply-templates>
</xsl:variable>
<!-- string results provides source output for the converted nodes -->
<!-- remove final comma from preceding construct to match JSON syntax: no comma at end of an array -->
<xsl:value-of select="substring($allContainedCommentsElements,1,string-length($allContainedCommentsElements)-1)"/>
</xsl:template>
<xsl:template match="* | comment()"> <!-- rule to process each element (X3D nodes and scene-graph structure statements) -->
<xsl:param name="indent"><xsl:text>0</xsl:text></xsl:param>
<xsl:call-template name="trace">
<xsl:with-param name="message"><xsl:text></xsl:text></xsl:with-param>
<xsl:with-param name="element" select="local-name()"/>
<xsl:with-param name="name" select="@name"/>
<xsl:with-param name="DEF" select="@DEF"/>
<xsl:with-param name="USE" select="@USE"/>
<xsl:with-param name="indent" select="$indent"/>
</xsl:call-template>
<xsl:variable name="elementName" select="local-name()"/>
<xsl:variable name= "parentName" select="local-name(..)"/>
<xsl:variable name="debugTrace" select="false()"/><!-- true() false() -->
<xsl:if test="$debugTrace">
<xsl:message>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>** xsl:template match="* | comment()" #</xsl:text>
<xsl:value-of select="position()"/>
<xsl:text> </xsl:text>
<xsl:value-of select="local-name()"/>
<xsl:if test="(string-length(@DEF) > 0)">
<xsl:text>, DEF=</xsl:text>
<xsl:value-of select="@DEF"/>
</xsl:if>
<xsl:if test="(string-length(@USE) > 0)">
<xsl:text>, USE=</xsl:text>
<xsl:value-of select="@USE"/>
</xsl:if>
<xsl:if test="(string-length(@name) > 0)">
<xsl:text>, name=</xsl:text>
<xsl:value-of select="@name"/>
</xsl:if>
</xsl:message>
</xsl:if>
<xsl:choose>
<xsl:when test="($elementName = 'div') or ($elementName = 'span') or ($elementName = 'ui') or ($elementName = 'li') or ($elementName = 'canvas')">
<xsl:if test="$debugTrace">
<!-- Drop the X3DOM elements (thanks to John Carlson) -->
<xsl:message>
<xsl:text>*** (drop)</xsl:text>
</xsl:message>
</xsl:if>
</xsl:when>
<!-- ============================================================================================ -->
<!-- scene-graph structure statements -->
<xsl:when test="($elementName = 'X3D') or ($elementName = 'head') or ($elementName = 'Scene') or
($elementName = 'component') or ($elementName = 'meta') or ($elementName = 'unit') or
($elementName = 'IS') or ($elementName = 'connect') or
($elementName = 'field') or ($elementName = 'fieldValue') or ($elementName = 'ProtoInterface') or
($elementName = 'ProtoBody') or
($elementName = 'AllX3dElementsAttributes')"> <!-- for scene graph code-coverage testing -->
<!-- special statements: scene-graph structure element may have attributes, contains arrays, but NOT surrounded by {squiggly brackets} -->
<xsl:if test="$debugTrace">
<xsl:message>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>*** (scene-graph structure statements)</xsl:text>
</xsl:message>
</xsl:if>
<!-- if first of multiple siblings, process all at once -->
<xsl:if test="not(preceding-sibling::*[local-name() = $elementName])">
<!-- first peer of its kind, found no preceding siblings with same name. process all similar-sibling elements of this type at once. -->
<xsl:if test="$debugTrace">
<xsl:message>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>*** first peer of its kind: #</xsl:text>
<xsl:value-of select="position()"/>
<xsl:text> </xsl:text>
<xsl:value-of select="local-name()"/>
<xsl:if test="(string-length(@DEF) > 0)">
<xsl:text>, DEF=</xsl:text>
<xsl:value-of select="@DEF"/>
</xsl:if>
<xsl:if test="(string-length(@USE) > 0)">
<xsl:text>, USE=</xsl:text>
<xsl:value-of select="@USE"/>
</xsl:if>
<xsl:if test="(string-length(@name) > 0)">
<xsl:text>, name=</xsl:text>
<xsl:value-of select="@name"/>
</xsl:if>
</xsl:message>
</xsl:if>
<!-- special case: scene-graph top-level structure elements, pre-fix -->
<xsl:choose>
<xsl:when test="(($elementName='X3D') and not($parentName='AllX3dElementsAttributes')) or ($elementName='AllX3dElementsAttributes')">
<xsl:text>{ </xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
</xsl:otherwise>
</xsl:choose>
<xsl:text>"</xsl:text>
<xsl:value-of select="$elementName"/>
<xsl:text>"</xsl:text>
<xsl:text>:</xsl:text><!-- [scene-graph structure element contains keys -->
<!-- special case: scene-graph structure elements, pre-fix -->
<xsl:choose>
<xsl:when test="($elementName='X3D')">
<xsl:text> {</xsl:text><!-- attributes + follow-on nodes in scene-graph structure array -->
<xsl:if test="not($parentName='AllX3dElementsAttributes')">
<xsl:text> </xsl:text>
<xsl:text> </xsl:text><!-- indent -->
<xsl:text>"encoding":"UTF-8",</xsl:text> <!-- also allowed UTF-16 UTF-32 -->
</xsl:if>
</xsl:when>
<xsl:when test="($elementName='head') or ($elementName='Scene') or ($elementName='ProtoInterface') or ($elementName='ProtoBody') or ($elementName='IS') or ($elementName='AllX3dElementsAttributes')">
<xsl:if test="(count(@*) = 0)">
<xsl:text> {</xsl:text>
</xsl:if>
</xsl:when>
<xsl:otherwise>
<xsl:text> [</xsl:text>
</xsl:otherwise>
</xsl:choose>
<xsl:for-each select="(self::* | following-sibling::*[local-name() = $elementName])">
<!-- process all sibling elements of this type at once -->
<xsl:if test="$debugTrace">
<xsl:message>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>**** process all sibling elements of this type at once: #</xsl:text>
<xsl:value-of select="position()"/>
<xsl:text> </xsl:text>
<xsl:value-of select="local-name()"/>
<xsl:if test="(string-length(@DEF) > 0)">
<xsl:text>, DEF=</xsl:text>
<xsl:value-of select="@DEF"/>
</xsl:if>
<xsl:if test="(string-length(@USE) > 0)">
<xsl:text>, USE=</xsl:text>
<xsl:value-of select="@USE"/>
</xsl:if>
<xsl:if test="(string-length(@name) > 0)">
<xsl:text>, name=</xsl:text>
<xsl:value-of select="@name"/>
</xsl:if>
</xsl:message>
</xsl:if>
<!-- process attributes for this element, if any -->
<xsl:if test="@* and not($elementName='X3D') and not($elementName='AllX3dElementsAttributes')">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>{</xsl:text><!-- attributes + follow-on nodes in scene-graph structure array -->
</xsl:if>
<xsl:if test="@*">
<xsl:call-template name="attributes">
<xsl:with-param name="indent"><xsl:value-of select="$indent+2"/></xsl:with-param>
</xsl:call-template>
</xsl:if>
<xsl:if test="($elementName='X3D') and not($parentName='AllX3dElementsAttributes')">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<!-- TODO no guidance yet on how to properly mark the governing schema within a JSON file at https://json-schema.org -->
<xsl:text>"JSON schema":"https://www.web3d.org/specifications/x3d-4.0-JSONSchema.autogenerated.json"</xsl:text>
<xsl:text>,</xsl:text>
</xsl:if>
<xsl:call-template name="comments-elements-ROUTEs"> <!-- contained content -->
<xsl:with-param name="indent"><xsl:value-of select="$indent+4"/></xsl:with-param>
</xsl:call-template>
<!-- process attributes for this element, post-fix -->
<xsl:if test="@* or ($elementName='X3D')">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>}</xsl:text><!-- attributes + follow-on nodes in scene-graph structure array -->
</xsl:if>
<!-- special case: add meta tags for conversion, if others exist. TODO handle if no head element provided. -->
<xsl:if test="(local-name() = 'meta') and (last() = position()) and not($parentName='AllX3dElementsAttributes')">
<xsl:text>,</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>{</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>"@name":"translated",</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>"@content":"</xsl:text>
<xsl:value-of select="format-date(current-date(), '[D01] [MNn] [Y0001]')"/><xsl:text>"</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>},</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>{</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>"@name":"generator",</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>"@content":"X3dToJson.xslt, https://www.web3d.org/x3d/stylesheets/X3dToJson.html"</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<!-- TODO omit warning when encoding is finished and stable -->
<xsl:text>},</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>{</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>"@name":"reference",</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>"@content":"X3D JSON encoding: https://www.web3d.org/wiki/index.php/X3D_JSON_Encoding"</xsl:text><xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>}</xsl:text>
</xsl:if>
<!-- commas separate objects in this array. do not terminate with comma. -->
<xsl:if test="(last() > position())">
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:for-each>
<!-- special case: scene-graph structure elements, post-fix -->
<xsl:choose>
<xsl:when test="(($elementName='X3D') and not($parentName='AllX3dElementsAttributes'))">
<xsl:text> </xsl:text>
<xsl:text>}</xsl:text>
</xsl:when>
<xsl:when test="($elementName='AllX3dElementsAttributes')"> <!-- testing complete -->
<xsl:text>}</xsl:text>
<xsl:text> </xsl:text>
<xsl:text>}</xsl:text>
</xsl:when>
<xsl:when test="($elementName='head') or ($elementName='Scene') or ($elementName = 'ProtoInterface') or ($elementName='ProtoBody') or ($elementName='IS')">
<xsl:if test="(count(@*) = 0)">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>}</xsl:text>
</xsl:if>
</xsl:when>
<xsl:otherwise>
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>]</xsl:text>
</xsl:otherwise>
</xsl:choose>
<!-- add comma after array elements, lingering final comma is stripped later -->
<xsl:if test="not($elementName='X3D') and not($elementName='AllX3dElementsAttributes')">
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:if> <!-- initial sibling -->
</xsl:when>
<xsl:when test="($elementName = 'Signature')"><!-- ds:Signature -->
<xsl:message>
<xsl:text>Warning: XML Digital Signature not supported in X3D JSON encoding, <ds:Signature/> authentication block ignored. </xsl:text>
</xsl:message>
</xsl:when>
<!-- ============================================================================================ -->
<xsl:otherwise>
<!-- base case: simple element, optional attributes, accessed by containerField (or overriding fieldName) -->
<!-- includes ROUTE and ProtoInstance -->
<xsl:variable name="fieldName">
<xsl:choose>
<!-- special test case for full coverage of scene-graph elements, attributes and default values -->
<xsl:when test="($parentName = 'AllX3dElementsAttributes') and ($elementName = 'X3D')">
<xsl:text>children</xsl:text>
</xsl:when>
<!-- ProtoDeclare and ExternProtoDeclare names are encoded with children nodes -->
<xsl:when test="($elementName = 'ProtoDeclare') or ($elementName = 'ExternProtoDeclare')">
<!-- <xsl:value-of select="$elementName"/> similarly to containerField names, each contains an array-->
<xsl:text>children</xsl:text>
</xsl:when>
<!-- comments and ROUTE elements are treated as objects under -children field, regardless of parent node -->
<xsl:when test="self::comment()">
<xsl:text>children</xsl:text>
</xsl:when>
<xsl:when test="($elementName = 'ROUTE')">
<xsl:text>children</xsl:text>
</xsl:when>
<xsl:when test="($elementName = 'IMPORT') or ($elementName = 'EXPORT')">
<!-- IMPORT and EXPORT names are encoded with children nodes -->
<xsl:text>children</xsl:text>
</xsl:when>
<xsl:when test="($parentName = 'Scene')">
<!-- Metadata* nodes are allowed as children -->
<xsl:text>children</xsl:text>
</xsl:when>
<xsl:when test="($parentName = 'ProtoBody')">
<!-- note that all children of ProtoBody go into "-children" field; first node is node type for that prototype declaration -->
<xsl:text>children</xsl:text>
</xsl:when>
<xsl:when test="($parentName = 'field') or ($parentName = 'fieldValue')">
<!-- parent ProtoInterface handled separately -->
<xsl:text>children</xsl:text>
</xsl:when>
<xsl:when test="($parentName = 'Scene') and starts-with($elementName, 'Metadata')">
<!-- Metadata* nodes as root nodes at top level of Scene are special case, treated as children. TODO confirm mantis spec tooltips and webpage are reviewed/approved/updated. -->
<xsl:text>children</xsl:text>
</xsl:when>
<xsl:when test="string-length(@containerField) > 0">
<!-- following depends on schema being properly read and providing containerField values -->
<xsl:value-of select="@containerField"/>
</xsl:when>
<xsl:otherwise>
<!-- Note that this error condition occurs if DTD default attribute values are suppressed before invocation -->
<xsl:text>IllegalChildNodeFieldNameNotFound</xsl:text>
<xsl:message>
<xsl:text>Error: IllegalChildNodeFieldNameNotFound no containerField or field name found for the X3D JSON object. Check spelling of node.</xsl:text>
<xsl:text> </xsl:text>
<xsl:text> $elementName=</xsl:text>
<xsl:value-of select="$elementName"/>
<xsl:if test="(string-length(@DEF) > 0)">
<xsl:text>, DEF=</xsl:text>
<xsl:value-of select="@DEF"/>
</xsl:if>
<xsl:if test="(string-length(@USE) > 0)">
<xsl:text>, USE=</xsl:text>
<xsl:value-of select="@USE"/>
</xsl:if>
<xsl:text>, $parentName=</xsl:text>
<xsl:value-of select="$parentName"/>
<xsl:text> </xsl:text>
<xsl:choose>
<xsl:when test="not($isTestScene)">
<xsl:text> Please report this error to x3d-public@web3d.org - thanks for your help improving X3D Quality Assurance (QA).</xsl:text>
</xsl:when>
<xsl:when test="(string-length(//meta[(@name='title')]/@content) > 0)">
<xsl:text> </xsl:text>
<xsl:value-of select="//meta[(@name='title')]/@content"/>
<xsl:text> is a test scene supporting X3D Quality Assurance (QA).</xsl:text>
</xsl:when>
</xsl:choose>
</xsl:message>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<!-- check some special cases that are unambiguously fixable -->
<xsl:variable name="expectedContainerField">
<xsl:choose>
<xsl:when test="(local-name(..) = 'GeoLOD') and not(local-name() = 'GeoOrigin') and not(starts-with(local-name(), 'Metadata'))">
<xsl:text>rootNode</xsl:text>
</xsl:when>
<xsl:when test="(local-name(..) = 'HAnimHumanoid') and (local-name() = 'HAnimSegment')">
<xsl:text>segments</xsl:text>
</xsl:when>
<!-- HAnimHumanoid can contain HAnimJoint with containerField = joints or skeleton -->
<!-- HAnimHumanoid can contain HAnimSite with containerField = sites, skeleton or viewpoints -->
<!-- HAnimHumanoid can contain X3DCoordinateNode with containerField = skinCoord or skinBindingCoords -->
<!-- HAnimHumanoid can contain X3DNormalNode with containerField = skinNormal or skinBindingNormals -->
</xsl:choose>
</xsl:variable>
<xsl:if test="(string-length($expectedContainerField) > 0) and not(@containerField = $expectedContainerField)">
<xsl:message>
<xsl:text>... containerField mismatch for </xsl:text>
<xsl:value-of select="local-name()"/>
<xsl:text> DEF='</xsl:text>
<xsl:value-of select="@DEF"/>
<xsl:text>', found containerField='</xsl:text>
<xsl:value-of select="@containerField"/>
<xsl:text>' but expected containerField='</xsl:text>
<xsl:value-of select="$expectedContainerField"/>
<xsl:text>'</xsl:text>
</xsl:message>
</xsl:if>
<!-- Metadata nodes are allowed at top level of scene, but have different default containerField and thus require special attention -->
<xsl:variable name="isSceneMetadata"
select="($parentName = 'Scene') and starts-with($elementName,'Metadata')"/>
<xsl:variable name="hasPriorSibling"
select="preceding-sibling::*[@containerField = $fieldName] or
(($fieldName = 'children') and
(preceding-sibling::*[$parentName = 'field'] or
preceding-sibling::*[$parentName = 'fieldValue'] or
preceding-sibling::*[$parentName = 'ProtoBody'] or
preceding-sibling::ProtoDeclare or
preceding-sibling::ExternProtoDeclare or
preceding-sibling::ROUTE or
preceding-sibling::IMPORT or
preceding-sibling::EXPORT or
preceding-sibling::comment() or
preceding-sibling::*[$parentName = 'Scene'][starts-with($elementName,'Metadata')]))"/>
<xsl:choose>
<!-- if first of multiple siblings, process all at once -->
<xsl:when test="not($hasPriorSibling)">
<!-- first peer of its kind, found no preceding siblings with same name -->
<xsl:if test="$debugTrace">
<xsl:message>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>*** (base case, first of multiple siblings)</xsl:text>
</xsl:message>
</xsl:if>
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:variable name="SFNodeType" select="
($fieldName = 'back') or ($fieldName = 'bottom') or ($fieldName = 'front') or
($fieldName = 'left') or ($fieldName = 'right') or ($fieldName = 'top') or
($fieldName = 'backTexture') or ($fieldName = 'bottomTexture') or ($fieldName = 'frontTexture') or
($fieldName = 'leftTexture') or ($fieldName = 'rightTexture') or ($fieldName = 'topTexture') or
($fieldName = 'appearance') or ($fieldName = 'body1') or ($fieldName = 'body2') or
($fieldName = 'collidable') or ($fieldName = 'collider') or
($fieldName = 'color') or ($fieldName = 'colorRamp') or ($fieldName = 'coord') or
($fieldName = 'controlPoint') or ($fieldName = 'controlPoints') or ($fieldName = 'crossSectionCurve') or
($fieldName = 'emitter') or ($fieldName = 'fillProperties') or
($fieldName = 'fogCoord') or ($fieldName = 'fontStyle') or ($fieldName = 'geoOrigin') or
($fieldName = 'geometry') or ($fieldName = 'geometry1') or ($fieldName = 'geometry2') or
($fieldName = 'gradients') or ($fieldName = 'layout') or ($fieldName = 'lineProperties') or
($fieldName = 'massDensityModel') or ($fieldName = 'material') or
($fieldName = 'metadata') or ($fieldName = 'normal') or ($fieldName = 'pickingGeometry') or
($fieldName = 'profileCurve') or ($fieldName = 'proxy') or
($fieldName = 'segmentIdentifiers') or ($fieldName = 'skinCoord') or ($fieldName = 'skinNormal') or
($fieldName = 'surface') or ($fieldName = 'surfaceNormals') or
($fieldName = 'targetObject') or ($fieldName = 'texCoordRamp') or ($fieldName = 'textureProperties') or
($fieldName = 'trajectoryCurve') or ($fieldName = 'transferFunction') or
($fieldName = 'viewpoint') or ($fieldName = 'voxels') or
($fieldName = 'weightTransferFunction1') or
($fieldName = 'weightTransferFunction2') or
(($fieldName = 'renderStyle') and (($parentName='BlendedVolumeStyle') or ($parentName='VolumeData'))) or
(($fieldName = 'source') and ($parentName='Sound')) or
(($fieldName = 'texCoord') and not($parentName='MultiTextureCoordinate')) or
(($fieldName = 'texture') and not(($parentName='ComposedTexture3D') or ($parentName='MultiTexture'))) or
(($fieldName = 'textureTransform') and not($parentName='MultiTextureTransform')) or
(($fieldName = 'shape') and (($parentName='CADFace') or ($parentName='CollidableShape')))" />
<!-- contained node containerField -->
<xsl:if test="not(local-name() = 'ProtoInterface') and not(local-name() = 'ProtoBody')">
<xsl:text>"</xsl:text>
<xsl:text>-</xsl:text><!-- visual assist, TODO determine if part of final pattern -->
<xsl:value-of select="$fieldName"/>
<xsl:text>"</xsl:text>
<xsl:text>:</xsl:text>
<!-- SFNode tests -->
<xsl:if test="not($SFNodeType) or //AllX3dElementsAttributes">
<xsl:text>[</xsl:text>
</xsl:if>
</xsl:if>
<!-- select node() list, note use of | operator rather than "or" -->
<xsl:for-each select="
(self::* |
self::comment() |
following-sibling::*[@containerField = $fieldName] |
following-sibling::*[$parentName = 'field'] [$fieldName = 'children'] |
following-sibling::*[$parentName = 'fieldValue'] [$fieldName = 'children'] |
following-sibling::*[$parentName = 'ProtoBody'] [$fieldName = 'children'] |
following-sibling::ProtoDeclare [$fieldName = 'children'] |
following-sibling::ExternProtoDeclare [$fieldName = 'children'] |
following-sibling::ROUTE [$fieldName = 'children'] |
following-sibling::IMPORT [$fieldName = 'children'] |
following-sibling::EXPORT [$fieldName = 'children'] |
following-sibling::comment() [$fieldName = 'children'] |
following-sibling::*[$parentName = 'Scene'][starts-with(local-name(),'Metadata')][$fieldName = 'children'])">
<!-- greedy algorithm to process all elements of this field type at once -->
<!-- base case: simple element, optional attributes, accessed by containerField -->
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>{</xsl:text><!-- base case: simple element inside containerField -->
<xsl:choose>
<xsl:when test="self::comment()">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>"</xsl:text>
<xsl:text>#comment</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:text> "</xsl:text>
<xsl:value-of select="local-name()"/> <!-- $elementName not working?? -->
</xsl:otherwise>
</xsl:choose>
<xsl:text>"</xsl:text>
<xsl:text>:</xsl:text>
<!-- process attributes for this element, if any -->
<xsl:if test="@*">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>{</xsl:text><!-- attributes array for otherwise case (followed by additional contained nodes, if any) -->
<xsl:call-template name="attributes">
<xsl:with-param name="indent" select="$indent+4"/>
</xsl:call-template>
</xsl:if>
<!-- comment prose -->
<xsl:if test="self::comment()">
<xsl:text>"</xsl:text>
<!-- escaped quote requires preceding backslash in JSON encoding -->
<xsl:call-template name="escape-comment-recurse">
<xsl:with-param name="inputValue">
<xsl:value-of select="normalize-space(string(.))" disable-output-escaping="yes"/>
</xsl:with-param>
</xsl:call-template>
<xsl:text>"</xsl:text>
</xsl:if>
<xsl:if test="* | comment()"> <!-- node() includes CDATA text -->
<!-- recurse; each child element is represented in a JSON array of JSON objects -->
<xsl:call-template name="comments-elements-ROUTEs"> <!-- contained content -->
<xsl:with-param name="indent"><xsl:value-of select="$indent+6"/></xsl:with-param>
</xsl:call-template>
</xsl:if>
<!-- process contained child text(), looking for source code -->
<xsl:if test="(string-length(normalize-space(string(.))) > 0) and not(normalize-space(string(.)) = ' ')">
<!-- add comma separator if field/IS/connect definitions are preceding and this is indeed the node containing source code (rather than a descendant) -->
<xsl:if test="((local-name() = 'Script') or (local-name() = 'ShaderPart') or (local-name() = 'ShaderProgram'))">
<xsl:call-template name="trace">
<xsl:with-param name="message">
<xsl:text>trace: count(*)=</xsl:text>
<xsl:value-of select="count(*)"/>
<xsl:text>, count(@*)=</xsl:text>
<xsl:value-of select="count(@*)"/>
<xsl:text>, attribute value(s)=</xsl:text>
<xsl:value-of select="@*[(string-length(normalize-space(string(.))) > 0) and not(local-name()='containerField')]"/>
</xsl:with-param>
<xsl:with-param name="element"><xsl:value-of select="local-name()"/></xsl:with-param>
<xsl:with-param name="traceEnabled"><xsl:text>false</xsl:text></xsl:with-param>
</xsl:call-template>
<!-- only output comma prior to #sourceTextMode if preceded by a child node or (non-containerField) attribute value. watch out for default values! -->
<xsl:if test="(count(*) > 0) or (count(@*[(string-length(normalize-space(string(.))) > 0) and not(local-name()='containerField')]) > 0)">
<xsl:if test="(count(*) > 0) or not((local-name() = 'Script') and (@directOutput = 'false') and (@mustEvaluate = 'false') and (string-length(normalize-space(@DEF)) = 0) and (string-length(normalize-space(@url)) = 0))">
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:if>
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+6"/></xsl:call-template>
<xsl:apply-templates select="text()"/> <!-- Script/ShaderPart/ShaderProgram #sourceCode -->
</xsl:if>
</xsl:if>
<xsl:if test="@*">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+4"/></xsl:call-template>
<xsl:text>}</xsl:text><!-- attributes array for otherwise case (followed by additional contained nodes, if any) -->
</xsl:if>
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>}</xsl:text><!-- base case: simple element inside containerField -->
<!-- commas separate objects in this array. do not terminate with comma. -->
<xsl:if test="(last() > position())">
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:for-each>
<!-- contained node containerField -->
<xsl:if test="not(local-name() = 'ProtoInterface') and not(local-name() = 'ProtoBody')">
<!-- SFNode tests -->
<xsl:if test="not($SFNodeType) or //AllX3dElementsAttributes">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>]</xsl:text>
</xsl:if>
</xsl:if>
<!-- <xsl:if test="parent::Scene or parent::ProtoBody or (not(../@*) and not(../preceding-sibling::comment()))">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>}</xsl:text>base case: brackets outside containerField
</xsl:if> -->
<xsl:text>,</xsl:text>
</xsl:when> <!-- initial sibling -->
<xsl:otherwise>
<xsl:if test="$debugTrace or not($hasPriorSibling)">
<!-- no match on first of multiple siblings -->
<xsl:message>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>*** Warning: (base case element processing, no match on first of multiple siblings, was it handled?) </xsl:text>
<xsl:text> $hasPriorSibling=</xsl:text>
<xsl:value-of select="$hasPriorSibling"/>
<xsl:text>, $isSceneMetadata=</xsl:text>
<xsl:value-of select="$isSceneMetadata"/>
</xsl:message>
</xsl:if>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>
<!-- ============================================================================================ -->
</xsl:choose>
</xsl:template> <!-- end match="*" -->
<xsl:template match="hide/comment()">
<xsl:param name="indent"><xsl:text>0</xsl:text></xsl:param>
<xsl:param name="stripComments"><xsl:value-of select="$stripComments"/></xsl:param>
<xsl:call-template name="trace">
<xsl:with-param name="message">
<xsl:text>$stripComments=</xsl:text>
<xsl:value-of select="$stripComments"/>
<xsl:text>, </xsl:text>
<xsl:value-of select="normalize-space(string(.))"/>
</xsl:with-param>
<xsl:with-param name="element"><xsl:text>#comment</xsl:text></xsl:with-param>
<xsl:with-param name="indent" select="$indent"/>
<xsl:with-param name="traceEnabled"><xsl:text>false</xsl:text></xsl:with-param>
</xsl:call-template>
<xsl:if test="not($stripComments = 'true') and (count(preceding-sibling::comment()) = 0)">
<!-- "#comment" is used as key for this JSON object, similar to ROUTE or other containerField values, which collects an array of JSON strings -->
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<!-- <xsl:if test="parent::Scene or parent::ProtoBody or not(../@*)">
<xsl:text>{ </xsl:text>base case: brackets outside comment
</xsl:if> -->
<xsl:text>"</xsl:text>
<xsl:text>#comment</xsl:text> <!-- comment prefix -->
<xsl:value-of select="name()"/>
<xsl:text>"</xsl:text>
<xsl:text>:[</xsl:text>
<xsl:variable name="allCommentsStringArray">
<!-- greedily put all peer comments in this array of strings -->
<xsl:for-each select="self::comment() | following-sibling::comment()">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent+2"/></xsl:call-template>
<xsl:text>"</xsl:text>
<!-- escaped quote requires preceding backslash in JSON encoding -->
<xsl:call-template name="escape-comment-recurse">
<xsl:with-param name="inputValue" select="normalize-space(string(.))"/>
</xsl:call-template>
<xsl:text>"</xsl:text>
<xsl:text>,</xsl:text>
</xsl:for-each>
</xsl:variable>
<!-- strip trailing comma -->
<xsl:value-of select="substring($allCommentsStringArray,1,string-length($allCommentsStringArray)-1)"/>
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>]</xsl:text>
<!-- <xsl:if test="parent::Scene or parent::ProtoBody or not(../@*)">
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>}</xsl:text>base case: brackets outside comment
</xsl:if> -->
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:template> <!-- match="comment()" -->
<xsl:template name="attributes"> <!-- rule to process all attributes -->
<xsl:param name="indent"><xsl:text>0</xsl:text></xsl:param>
<xsl:variable name="allAttributesString">
<xsl:apply-templates select="@*">
<xsl:sort select="not(local-name() = 'name')"/>
<xsl:sort select=" (local-name() = 'name')"/>
<xsl:with-param name="indent" select="$indent+2"/>
</xsl:apply-templates>
</xsl:variable>
<!-- strip final comma, when follow-on element(s) or comment(s) are contained -->
<xsl:choose>
<xsl:when test="* | comment()"> <!-- node() includes CDATA text -->
<xsl:value-of select="$allAttributesString"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="substring($allAttributesString,1,string-length($allAttributesString)-1)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template> <!-- end match="attributes" -->
<xsl:template match="@*"> <!-- rule to process each @attribute -->
<xsl:param name="isComment"><xsl:text>false</xsl:text></xsl:param>
<xsl:param name="indent"><xsl:text>0</xsl:text></xsl:param>
<!-- an attribute is handled as a JSON "@name":_value_ pair with appropriate type matching -->
<xsl:variable name="normalizedValue" select="normalize-space(string(.))"/>
<!-- Detect and suppress default attribute values -->
<xsl:variable name="notDefaultAttributeValue">
<xsl:call-template name="not-default-attribute-value">
</xsl:call-template>
</xsl:variable>
<!-- eliminate default attribute values (based on parameter setting) otherwise they will all appear in output -->
<xsl:if test="((local-name()='DEF') or (local-name()='USE') or (local-name()='name') or
((string-length($notDefaultAttributeValue) > 0) and not(local-name() = 'containerField'))
and not(/AllX3dElementsAttributes))">
<xsl:variable name="attributeName" select="local-name()"/>
<xsl:variable name="fieldValueName" select="../@name"/>
<xsl:variable name="protoInstanceName" select="(../../@name)"/>
<xsl:variable name="fieldValueType1" select=" //ProtoDeclare[@name = $protoInstanceName][1]/ProtoInterface/field[@name=$fieldValueName][1]/@type"/>
<xsl:variable name="fieldValueType2" select="//ExternProtoDeclare[@name = $protoInstanceName][1] /field[@name=$fieldValueName][1]/@type"/>
<!-- only one of these should be available -->
<xsl:variable name="fieldValueType" select="concat($fieldValueType1[1],$fieldValueType2[1])"/>
<!-- debug ProtoInstance
<xsl:if test="(string-length($protoInstanceName) > 0) and ($attributeName = 'value')">
<xsl:message>
<xsl:text>$protoInstanceName=</xsl:text>
<xsl:value-of select="$protoInstanceName"/>
<xsl:text>, fieldValue $attributeName=</xsl:text>
<xsl:value-of select="$attributeName"/>
<xsl:text>, $fieldValueName=</xsl:text>
<xsl:value-of select="$fieldValueName"/>
<xsl:text>, $normalizedValue=</xsl:text>
<xsl:value-of select="$normalizedValue"/>
<xsl:text>, @name=</xsl:text>
<xsl:value-of select="local-name(//*[contains(local-name(),'ProtoDeclare')][@name = $protoInstanceName])"/>
<xsl:text>, @type=</xsl:text>
<xsl:value-of select="//*[contains(local-name(),'ProtoDeclare')][@name = $protoInstanceName]//field[@name=$fieldValueName]/@type"/>
<xsl:text>, $fieldValueType=</xsl:text>
<xsl:value-of select="$fieldValueType"/>
</xsl:message>
</xsl:if>
-->
<!-- debug field, fieldValue
<xsl:if test="starts-with(local-name(..),'field') and (local-name()='name')">
<xsl:message>
<xsl:text>></xsl:text>
<xsl:value-of select="local-name(..)"/>
<xsl:text> name='</xsl:text>
<xsl:value-of select="."/>
<xsl:if test="(string-length(normalize-space(../@type)) > 0)">
<xsl:text>' type='</xsl:text>
<xsl:value-of select="../@type"/>
</xsl:if>
<xsl:if test="(string-length(normalize-space(../@accessType)) > 0)">
<xsl:text>' accessType='</xsl:text>
<xsl:value-of select="../@accessType"/>
</xsl:if>
<xsl:text>' value='</xsl:text>
<xsl:value-of select="../@value"/>
<xsl:text>'/<</xsl:text>
</xsl:message>
</xsl:if>
-->
<!-- common processing for each attribute -->
<!-- escaped quote requires preceding backslash in JSON encoding
<xsl:variable name="normalizedSFStringEmbeddedQuotes">
<xsl:call-template name="escape-special-characters-quotes-recurse">
<xsl:with-param name="inputValue" select="normalize-space(string(.))"/>
<xsl:with-param name="inputType"><xsl:text>SFString</xsl:text></xsl:with-param>
</xsl:call-template>
</xsl:variable> -->
<xsl:variable name="containsQuote" select="contains($normalizedValue, '"')"/>
<xsl:variable name="containsEscapedQuote" select="contains($normalizedValue,'\"')"/>
<!-- now process attribute value. if this attribute is part of a USE node, then only output USE, containerField, class attributes. -->
<xsl:if test="((string-length(../@USE) = 0) or (local-name()='USE') or (local-name()='name') or
(local-name()='containerField') or (local-name()='class') or
(local-name(..)='X3D') and ((local-name()='profile') or (local-name()='version')))
and not(/AllX3dElementsAttributes)
and not((local-name(..) = 'X3D') and (local-name() = 'width' or local-name() = 'height' or local-name() = 'backend' or local-name() = 'showStat' or local-name() = 'showLog')) and not(local-name() = 'skyTransparency') and not(local-name() = 'groundTransparency') and not(local-name() = 'id') and not(local-name() = 'subdivision')"> <!-- This line are X3DOM attributes -->
<xsl:text> </xsl:text>
<xsl:call-template name="print-indent"><xsl:with-param name="indent" select="$indent"/></xsl:call-template>
<xsl:text>"</xsl:text>
<xsl:text>@</xsl:text> <!-- attribute prefix -->
<xsl:value-of select="name()"/>
<xsl:text>"</xsl:text>
<xsl:text>:</xsl:text>
<!-- output attribute values according to data type ========================================================================== -->
<xsl:variable name="attributeType">
<xsl:call-template name="attribute-type"/>
</xsl:variable>
<!-- debug -->
<xsl:variable name="debugTrace" select="false()"/><!-- true() false() -->
<xsl:if test="$debugTrace">
<xsl:message>
<xsl:text>[@* choose type handling] $attributeType=</xsl:text>
<xsl:value-of select="$attributeType"/>
<xsl:text>, $normalizedValue=</xsl:text>
<xsl:value-of select="$normalizedValue"/>
</xsl:message>
</xsl:if>
<xsl:choose>
<!-- TODO optimize duplication of type checking which is present due to integration of rule attribute-type with original rules -->
<!-- deterministic rules first: use type information for normalizing text or numbers or booleans ========================= -->
<!-- single boolean -->
<xsl:when test="not($attributeType = 'MFBool') and
(($attributeType = 'SFBool') or
($normalizedValue='true') or ($normalizedValue='false') or
((local-name()='value') and ((../@type='SFBool') or (contains(local-name(../..),'Proto') and ($fieldValueType='SFBool')))))">
<xsl:value-of select="$normalizedValue"/>
</xsl:when>
<!-- boolean array -->
<xsl:when test="($attributeType = 'MFBool') or
((local-name()='value') and ((../@type='MFBool') or (contains(local-name(../..),'Proto') and ($fieldValueType='MFBool')))) or
((local-name(..)='BooleanSequencer') and (local-name()='keyValue')) or
((local-name(..)='MetadataBoolean') and (local-name()='value')) or
((local-name(..)='CADLayer') and ($attributeName='visible') and starts-with(//X3D/@version,'3')) or
((local-name(..)='SegmentedVolumeData') and (local-name()='segmentEnabled'))">
<xsl:text>[</xsl:text>
<!-- array values require comma between values in JSON encoding -->
<xsl:call-template name="insert-commas-recurse">
<xsl:with-param name="inputValue" select="$normalizedValue"/>
<xsl:with-param name="inputType"><xsl:text>MFBool</xsl:text></xsl:with-param>
</xsl:call-template>
<xsl:text>]</xsl:text>
</xsl:when>
<!-- no xs:string type handling for X3D statements, rather SFString according to Object Model for X3D (OM4X3D) -->
<!-- comments handled separately -->
<xsl:when test="(local-name(..)='meta') or