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l-systems/tortue.xsl
2024-04-27 01:44:42 +02:00

117 lines
3.5 KiB
XML

<?xml version="1.0" encoding="UTF-8"?>
<xsl:transform version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output indent="yes" />
<xsl:param name="nom" />
<xsl:param name="n" />
<!-- Pour le Lsystem -->
<xsl:template match="lsystem">
<tortue>
<xsl:call-template name="substitution">
<xsl:with-param name="actuel" select="axiom" />
<xsl:with-param name="n" select="$n" />
</xsl:call-template>
</tortue>
</xsl:template>
<!-- Substitution -->
<xsl:template name="substitution">
<xsl:param name="actuel" />
<xsl:param name="n" />
<!-- Si on doit encore substituer -->
<xsl:choose>
<xsl:when test="$n > 0">
<!-- Applique la substitution -->
<xsl:variable name="data">
<xsl:call-template name="Application">
<xsl:with-param name="data" select="$actuel" />
</xsl:call-template>
</xsl:variable>
<!-- Appel récursif -->
<xsl:call-template
name="substitution">
<xsl:with-param name="actuel" select="$data" />
<xsl:with-param name="n" select="$n - 1" />
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<!-- Interprétation -->
<xsl:call-template name="Interpretation">
<xsl:with-param name="data" select="$actuel" />
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- Applique la substitution -->
<xsl:template name="Application">
<xsl:param name="data" />
<xsl:variable name="substitution" select="substitutions/substitution" />
<xsl:analyze-string
select="$data" regex=".">
<xsl:matching-substring>
<xsl:value-of select="$substitution[@member = current()]" />
</xsl:matching-substring>
</xsl:analyze-string>
</xsl:template>
<!-- Interprète la séquence -->
<xsl:template name="Interpretation">
<xsl:param name="data" />
<xsl:variable name="interpretation"
select="interpretations/interpretation" />
<xsl:analyze-string
select="$data" regex=".">
<xsl:matching-substring>
<xsl:variable name="action"
select="$interpretation[@member = current()]" />
<xsl:choose>
<!-- Déplacer -->
<xsl:when test="matches($action, '^LINE \d+$')">
<move>
<xsl:value-of select="substring-after($action, 'LINE ')" />
</move>
</xsl:when>
<!-- Tourner -->
<xsl:when test="matches($action, '^TURN -?\d+$')">
<turn>
<xsl:value-of select="substring-after($action, 'TURN ')" />
</turn>
</xsl:when>
<!-- Store -->
<xsl:when test="$action = 'STORE'">
<store />
</xsl:when>
<!-- Restore -->
<xsl:when test="$action = 'RESTORE'">
<restore />
</xsl:when>
<!-- Debug -->
<!-- <xsl:otherwise>
<action>
<xsl:value-of select="$interpretation[@member = current()]" />
</action>
</xsl:otherwise> -->
</xsl:choose>
</xsl:matching-substring>
</xsl:analyze-string>
</xsl:template>
<!-- On récupère le Lsystem qui nous intéresse -->
<xsl:template match="/">
<xsl:processing-instruction name="xml-model">
href="tortue.xsd"
</xsl:processing-instruction>
<xsl:apply-templates
select="lsystems/lsystem[name=$nom]" />
</xsl:template>
</xsl:transform>