<?xml version='1.0'?>

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Copyright (C) 2014-2026  Robert A. Beezer

This file is part of PreTeXt.

PreTeXt is free software: you can redistribute it and/or modify
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License (at your option).

PreTeXt is distributed in the hope that it will be useful,
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You should have received a copy of the GNU General Public License
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*********************************************************************-->

<!-- This stylesheet locates all  exercise/stack  elements and     -->
<!-- writes out a single file listing the @source attribute value  -->
<!-- for eaCh one (the files with these names will be sent to a    -->
<!-- server for conversion to static forms)                        -->

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
    xmlns:xml="http://www.w3.org/XML/1998/namespace"
    xmlns:exsl="http://exslt.org/common"
    extension-element-prefixes="exsl"
>

<!-- Get internal ID's for filenames, etc -->
<!-- Standard conversion groundwork       -->
<xsl:import href="./publisher-variables.xsl"/>
<xsl:import href="./pretext-assembly.xsl"/>
<xsl:import href="./pretext-common.xsl"/>

<!-- Get a "subtree" xml:id value   -->
<!-- Then walk the XML source tree  -->
<!-- applying specializations below -->
<xsl:import href="./extract-identity.xsl" />

<xsl:output method="text" encoding="UTF-8"/>

<!-- Flag an extraction pass, so pretext-assembly does not get confused -->
<xsl:variable name="b-extracting-stack" select="true()"/>

<xsl:template match="exercise/stack" mode="extraction">
    <xsl:value-of select="@source"/>
    <xsl:text> </xsl:text>
    <xsl:apply-templates select="." mode="assembly-id"/>
    <xsl:text>&#xa;</xsl:text>
</xsl:template>

</xsl:stylesheet>
