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<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<!-- Convert ISO 8601 time format to "standard" date and time format
-->
<xsl:template name="datetime">
<xsl:param name="value"/>
<xsl:variable name="date">
<xsl:choose>
<xsl:when test="contains($value, 'T')">
<xsl:value-of select="substring-before($value, 'T')"/>
</xsl:when>
<xsl:when test="contains($value, ' ')">
<xsl:value-of select="substring-before($value, ' ')"/>
</xsl:when>
</xsl:choose>
</xsl:variable>
<xsl:variable name="time">
<xsl:choose>
<xsl:when test="contains($value, 'T')">
<xsl:value-of select="substring-after($value, 'T')"/>
</xsl:when>
<xsl:when test="contains($value, ' ')">
<xsl:value-of select="substring-after($value, ' ')"/>
</xsl:when>
</xsl:choose>
</xsl:variable>
<xsl:if test="$date != ''">
<xsl:attribute name="date">
<xsl:choose>
<xsl:when test="contains($date, '-')">
<xsl:value-of select="$date"/>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="year" select="substring($date, 1, 4)"/>
<xsl:variable name="month" select="substring($date, 5, 2)"/>
<xsl:variable name="day" select="substring($date, 7,2)"/>
<xsl:value-of select="concat($year,'-',$month,'-',$day)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:attribute>
</xsl:if>
<xsl:if test="$time != ''">
<xsl:attribute name="time">
<xsl:choose>
<xsl:when test="contains($time, ':')">
<xsl:value-of select="$time"/>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="hour" select="substring($time, 1, 2)"/>
<xsl:variable name="minute" select="substring($time, 3, 2)"/>
<xsl:variable name="second" select="substring($time, 5,2)"/>
<xsl:value-of select="concat($hour,':',$minute,':',$second)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:attribute>
</xsl:if>
</xsl:template>
<!-- Convert units in Pascal given in scientific notation to normal
decimal notation -->
<xsl:template name="convertPascal">
<xsl:param name="value"/>
<xsl:variable name="number">
<xsl:value-of select="translate($value, 'e', 'E')"/>
</xsl:variable>
<xsl:choose>
<xsl:when test="contains($number, 'E')">
<xsl:variable name="pressure">
<xsl:choose>
<xsl:when test="$value != ''">
<xsl:variable name="Exp" select="substring-after($number, 'E')"/>
<xsl:variable name="Man" select="substring-before($number, 'E')"/>
<xsl:variable name="Fac" select="substring('100000000000000000000', 1, substring($Exp,2) + 1)"/>
<xsl:choose>
<xsl:when test="$Exp != ''">
<xsl:value-of select="(number($Man) * number($Fac))"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$number"/>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:otherwise>0</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:value-of select="$pressure div 100000"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$value"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="time2sec">
<xsl:param name="time"/>
<xsl:value-of select="substring-before($time, ':') * 60 + substring-before(substring-after($time, ':'), ' ')"/>
</xsl:template>
<!-- Calculate sum of all parameters, and strip any unit following the
value -->
<xsl:template name="sum">
<xsl:param name="values"/>
<xsl:param name="sum" select="'0'"/>
<xsl:variable name="value" select="substring-before($values[1], ' ')"/>
<xsl:choose>
<!-- No input -->
<xsl:when test="count($values) = 0"/>
<!-- Handling last value -->
<xsl:when test="count($values) = 1">
<xsl:value-of select="format-number($value + $sum, '#.#')"/>
</xsl:when>
<!-- More than one value to sum -->
<xsl:otherwise>
<xsl:call-template name="sum">
<xsl:with-param name="values" select="$values[position() > 1]"/>
<xsl:with-param name="sum" select="$sum + $value"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- Trying to see if we have temperature readings -->
<xsl:template name="temperatureSamples">
<xsl:param name="units"/>
<xsl:choose>
<xsl:when test="$units = 'Imperial'">
<xsl:value-of select="count(descendant::temperature[. != 32])"/>
</xsl:when>
<xsl:when test="$units = 'Kelvin'">
<xsl:value-of select="count(descendant::temperature[. != 273.15])"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="count(descendant::temperature[. != 0])"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
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