XSLT + Замена двойных кавычек на escape-последовательность

У меня есть следующий xslt для преобразования данных в формат, принятый JQuery. Однако, поскольку JSON не принимает двойные кавычки в строке данных, мне нужно заменить " на управляющую последовательность \"

XML:

<?xml version="1.0" encoding="UTF-8"?>
<Rowsets>
    <Rowset>
        <Columns>
            <Column Description="Element_1" SQLDataType="12" />
            <Column Description="Element_2" SQLDataType="12" />
            <Column Description="Element_3" SQLDataType="93" />
        </Columns>
        <Row>
            <Element_1>test_data</Element_1>
            <Element_2>test_quo"te</Element_2>
            <Element_3>test_data</Element_3>
        </Row>
    </Rowset>
</Rowsets>

Текущий XSLT:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:java="http://xml.apache.org/xslt/java" exclude-result-prefixes="java">
    <xsl:output method="text" media-type="text/csv" encoding="UTF-8"/>
    <xsl:param name="RowDelim">],</xsl:param>
    <xsl:param name="RowLast">]</xsl:param>
    <xsl:param name="RowStart">[</xsl:param>
    <xsl:param name="startBracket">{ </xsl:param>
    <xsl:param name="JQTableData">"aaData": [</xsl:param>
    <xsl:param name="JQTableEnd">] }</xsl:param>
    <xsl:param name="FieldDelim">,</xsl:param>
    <xsl:param name="StringDelim">"</xsl:param>
    <xsl:param name="DateFormat">yyyy-MM-dd HH:mm:ss</xsl:param>


    <xsl:template match="/">





        <xsl:for-each select="Rowsets">

            <xsl:for-each select="Rowset">
            <xsl:value-of select="$startBracket"/>
            <xsl:value-of select="$JQTableData"/>
                <xsl:variable name="CurrentColumns" select="Columns"/>
                <xsl:for-each select="Columns">
                    <xsl:for-each select="Column">

                        <xsl:if test="not(position() = last())">

                        </xsl:if>
                    </xsl:for-each>

                </xsl:for-each>
                <xsl:for-each select="Row">
                <xsl:value-of select="$RowStart"/>
                    <xsl:for-each select="*">
                        <xsl:variable name="ColName">
                            <xsl:value-of select="name(.)"/>
                        </xsl:variable>
                        <xsl:variable name="ColType">
                            <xsl:value-of select="$CurrentColumns/Column[@Name=$ColName]/@SQLDataType"/>
                        </xsl:variable>
                        <xsl:choose>
                            <xsl:when test="$ColType= '2' or $ColType= '3' or $ColType= '4' or $ColType= '5' or 

$ColType= '6' or $ColType= '7' or $ColType= '8' or $ColType= '-7'">
                                <xsl:value-of select="."/>
                            </xsl:when>
                            <xsl:otherwise>
                                <xsl:value-of select="$StringDelim"/>
                                <xsl:choose>
                                    <xsl:when test="$ColType= '91' or $ColType= '92' or $ColType= '93'">
                                        <xsl:choose>
                                            <xsl:when test=". = 'TimeUnavailable'">
                                                <xsl:value-of select="."/>
                                            </xsl:when>
                                            <xsl:otherwise>
                                                                                        </xsl:otherwise>
                                        </xsl:choose>
                                    </xsl:when>
                                    <xsl:otherwise>
                                    <xsl:choose>
                                        <xsl:when test=". = 'true'">
                                            <xsl:text>Y</xsl:text>
                                        </xsl:when>
                                        <xsl:when test=". = 'false'">
                                            <xsl:text>N</xsl:text>
                                        </xsl:when>
                                        <xsl:otherwise>
                                            <xsl:value-of select="."/>
                                        </xsl:otherwise>
                                        </xsl:choose>
                                    </xsl:otherwise>
                                </xsl:choose>
                                <xsl:value-of select="$StringDelim"/>
                            </xsl:otherwise>
                        </xsl:choose>
                        <xsl:if test="not(position() = last())">
                            <xsl:value-of select="$FieldDelim"/>
                        </xsl:if>
                    </xsl:for-each>
                            <xsl:if test="not(position() = last())">
                            <xsl:value-of select="$RowDelim"/>
                        </xsl:if>
                            <xsl:if test="position() = last()">
                            <xsl:value-of select="$RowLast"/>
                        </xsl:if>

                </xsl:for-each>
                <xsl:value-of select="$JQTableEnd"/>
            </xsl:for-each>
        </xsl:for-each>
    </xsl:template>



</xsl:stylesheet>

Текущий вывод:

{ "aaData": [["test_data","test_quo"te","test_data"]] }

Желаемый вывод:

{ "aaData": [["test_data","test_quo\"te","test_data"]] }