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@elmimmo
Created June 1, 2012 11:49
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XSLT: from intermediate XML format to JSON
<?xml version="1.0" encoding="utf-8"?>
<!-- Stylesheet for converting between an intermediate format and JSON -->
<!-- Copyright 2006 Theo Hultberg, all rights reserved -->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:output method="text"
encoding="UTF-8"
/>
<xsl:variable name="nl"><xsl:text>&#xa;</xsl:text></xsl:variable>
<xsl:variable name="tab"><xsl:text>&#9;</xsl:text></xsl:variable>
<xsl:variable name="quote"><xsl:text>"</xsl:text></xsl:variable>
<xsl:template match="/">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="object">
<xsl:if test="./@name">
<xsl:text>"</xsl:text>
<xsl:value-of select="@name"/>
<xsl:text>": </xsl:text>
</xsl:if>
<xsl:text>{</xsl:text>
<xsl:apply-templates/>
<xsl:text>}</xsl:text>
<xsl:if test="position() &lt; last() - 1">
<!-- TODO: find out why is the -1 necessary? -->
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:template>
<xsl:template match="array">
<xsl:if test="@name">
<xsl:text>"</xsl:text>
<xsl:value-of select="@name"/>
<xsl:text>": </xsl:text>
</xsl:if>
<xsl:text>[</xsl:text>
<xsl:apply-templates/>
<xsl:text>]</xsl:text>
<xsl:if test="position() &lt; last() - 1">
<!-- TODO: find out why is the -1 necessary? -->
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:template>
<xsl:template match="string|date">
<xsl:variable name="text">
<xsl:call-template name="escape-linebreaks">
<xsl:with-param name="string">
<xsl:call-template name="escape-quotes">
<xsl:with-param name="string">
<xsl:value-of select="."/>
</xsl:with-param>
</xsl:call-template>
</xsl:with-param>
</xsl:call-template>
</xsl:variable>
<xsl:if test="@name">
<xsl:text>"</xsl:text>
<xsl:value-of select="@name"/>
<xsl:text>": </xsl:text>
</xsl:if>
<xsl:text>"</xsl:text>
<xsl:value-of select="$text"/>
<xsl:text>"</xsl:text>
<xsl:if test="position() &lt; last() - 1">
<!-- TODO: find out why is the -1 necessary? -->
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:template>
<xsl:template match="integer|real">
<xsl:if test="@name">
<xsl:text>"</xsl:text>
<xsl:value-of select="@name"/>
<xsl:text>": </xsl:text>
</xsl:if>
<xsl:value-of select="."/>
<xsl:if test="position() &lt; last() - 1">
<!-- TODO: find out why is the -1 necessary? -->
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:template>
<xsl:template match="property[@type='bool']">
<xsl:if test="@name">
<xsl:text>"</xsl:text>
<xsl:value-of select="@name"/>
<xsl:text>": </xsl:text>
</xsl:if>
<xsl:value-of select="."/>
<xsl:if test="position() &lt; last() - 1">
<!-- TODO: find out why is the -1 necessary? -->
<xsl:text>,</xsl:text>
</xsl:if>
</xsl:template>
<xsl:template name="escape-linebreaks">
<xsl:param name="string"/>
<xsl:call-template name="replace-all">
<xsl:with-param name="string">
<xsl:value-of select="$string"/>
</xsl:with-param>
<xsl:with-param name="old">
<xsl:value-of select="$nl"/>
</xsl:with-param>
<xsl:with-param name="new">
<xsl:text>\n</xsl:text>
</xsl:with-param>
</xsl:call-template>
</xsl:template>
<xsl:template name="escape-quotes">
<xsl:param name="string"/>
<xsl:call-template name="replace-all">
<xsl:with-param name="string">
<xsl:value-of select="$string"/>
</xsl:with-param>
<xsl:with-param name="old">
<xsl:value-of select="$quote"/>
</xsl:with-param>
<xsl:with-param name="new">
<xsl:text>\</xsl:text>
<xsl:value-of select="$quote"/>
</xsl:with-param>
</xsl:call-template>
</xsl:template>
<xsl:template name="replace-all">
<xsl:param name="string"/>
<xsl:param name="old"/>
<xsl:param name="new"/>
<xsl:choose>
<xsl:when test='contains($string, $old)'>
<xsl:value-of select="substring-before($string, $old)" />
<xsl:value-of select="$new"/>
<xsl:call-template name="replace-all">
<xsl:with-param name="string" select="substring-after($string, $old)" />
<xsl:with-param name="old" select="$old" />
<xsl:with-param name="new" select="$new" />
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$string" />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
@elmimmo
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elmimmo commented Jun 1, 2012

Original was from XSL, plists and a bit of JSON

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