subsurface/xslt/uddf-export.xslt

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:include href="commonTemplates.xsl"/>
  <xsl:strip-space elements="*"/>
  <xsl:output method="xml" encoding="utf-8" indent="yes"/>

  <xsl:key name="gases" match="cylinder" use="concat(substring-before(@o2, '.'), '/', substring-before(@he, '.'))" />

  <xsl:template match="/divelog/dives">
    <uddf version="3.2.0">
      <generator>
        <manufacturer id="subsurface">
          <name>Subsurface Team</name>
          <contact>http://subsurface.hohndel.org/</contact>
        </manufacturer>
        <version>
          <xsl:value-of select="/divelog/@version"/>
        </version>
        <xsl:if test="/divelog/generator/@date != ''">
          <datetime>
            <xsl:value-of select="concat(/divelog/generator/@date, 'T', /divelog/generator/@time)"/>
          </datetime>
        </xsl:if>
      </generator>

      <diver>
        <owner id="1">
          <equipment>
            <xsl:for-each select="/divelog/settings/divecomputerid">
              <divecomputer id="{./@deviceid}">
                <name>
                  <xsl:choose>
                    <xsl:when test="./@nickname != ''">
                      <xsl:value-of select="./@nickname"/>
                    </xsl:when>
                    <xsl:otherwise>
                      <xsl:value-of select="./@model"/>
                    </xsl:otherwise>
                  </xsl:choose>
                </name>
                <model>
                  <xsl:value-of select="./@model"/>
                </model>
              </divecomputer>
            </xsl:for-each>
          </equipment>
        </owner>

        <xsl:apply-templates select="//buddy"/>
      </diver>

      <xsl:apply-templates select="//location"/>

      <!-- Define all the unique gases found in the dive log -->
      <gasdefinitions>
        <!-- Get unique gas mixes from all the recorded dives -->
        <xsl:for-each select="dive/cylinder[generate-id() = generate-id(key('gases', concat(substring-before(@o2, '.'), '/', substring-before(@he, '.')))[1])]">

          <xsl:variable name="o2">
            <xsl:choose>
              <xsl:when test="@o2 != ''">
                <xsl:value-of select="substring-before(@o2, '.')"/>
              </xsl:when>
              <xsl:otherwise>
                <xsl:value-of select="'21'"/>
              </xsl:otherwise>
            </xsl:choose>
          </xsl:variable>

          <xsl:variable name="he">
            <xsl:choose>
              <xsl:when test="@he != ''">
                <xsl:value-of select="substring-before(@he, '.')"/>
              </xsl:when>
              <xsl:otherwise>
                <xsl:value-of select="'0'"/>
              </xsl:otherwise>
            </xsl:choose>
          </xsl:variable>

          <!-- The gas definitions will have the o2 percentage as mix ID
               to ease up the reference on switchmix events. Thus we can
               just use the same references used internally on
               Subsurface.
          -->
          <mix id="{$o2}">
            <name>
              <xsl:value-of select="concat($o2, '/', $he)"/>
            </name>
            <o2>
              <xsl:value-of select="$o2"/>
            </o2>
            <he>
              <xsl:value-of select="$he"/>
            </he>
          </mix>
        </xsl:for-each>
      </gasdefinitions>

      <profiledata>
        <xsl:for-each select="trip">
          <repetitiongroup id="{generate-id(.)}">
            <xsl:apply-templates select="dive"/>
          </repetitiongroup>
        </xsl:for-each>
        <xsl:for-each select="dive">
          <repetitiongroup id="{generate-id(.)}">
            <xsl:apply-templates select="."/>
          </repetitiongroup>
        </xsl:for-each>
      </profiledata>
    </uddf>
  </xsl:template>

  <xsl:key name="buddy" match="buddy" use="."/>
  <xsl:template match="buddy">
    <xsl:if test="generate-id() = generate-id(key('buddy', normalize-space(.)))">
      <buddy>
        <xsl:attribute name="id">
          <xsl:value-of select="."/>
        </xsl:attribute>
        <personal>
          <first_name>
            <xsl:value-of select="."/>
          </first_name>
        </personal>
      </buddy>
      </xsl:if>
  </xsl:template>

  <xsl:key name="location" match="location" use="."/>
  <xsl:template match="location">
    <xsl:if test="generate-id() = generate-id(key('location', normalize-space(.)))">
      <dive_site>
        <xsl:attribute name="id">
          <xsl:value-of select="."/>
        </xsl:attribute>
        <name>
          <xsl:value-of select="."/>
        </name>
        <geography>
          <location>
            <xsl:value-of select="."/>
          </location>
          <gps>
            <latitude>
              <xsl:value-of select="substring-before(@gps, ' ')"/>
            </latitude>
            <longitude>
              <xsl:value-of select="substring-after(@gps, ' ')"/>
            </longitude>
          </gps>
        </geography>
      </dive_site>
      </xsl:if>
  </xsl:template>

  <xsl:template match="dive">
    <dive id="{generate-id(.)}">

      <informationbeforedive>
        <xsl:if test="temperature/@air|divetemperature/@air != ''">
          <airtemperature>
            <xsl:value-of select="format-number(substring-before(temperature/@air|divetemperature/@air, ' ') + 273.15, '0.00')"/>
          </airtemperature>
        </xsl:if>
        <datetime>
          <xsl:value-of select="concat(./@date, 'T', ./@time)"/>
        </datetime>
        <divenumber>
          <xsl:value-of select="./@number"/>
        </divenumber>
        <xsl:if test="buddy != ''">
          <buddy_ref>
            <xsl:attribute name="ref">
              <xsl:value-of select="buddy"/>
            </xsl:attribute>
          </buddy_ref>
        </xsl:if>
        <xsl:if test="location != ''">
          <dive_site_ref>
            <xsl:attribute name="ref">
              <xsl:value-of select="location"/>
            </xsl:attribute>
          </dive_site_ref>
        </xsl:if>
      </informationbeforedive>

      <samples>
        <xsl:for-each select="./divecomputer[1]/sample">

          <!-- Position of previous waypoint -->
          <xsl:variable name="position">
            <xsl:value-of select="position() - 1"/>
          </xsl:variable>

          <!-- Times of surrounding waypoints -->
          <xsl:variable name="timefirst">
            <xsl:call-template name="time2sec">
              <xsl:with-param name="time">
                <xsl:value-of select="//sample[position() = $position]/@time"/>
              </xsl:with-param>
            </xsl:call-template>
          </xsl:variable>
          <xsl:variable name="timesecond">
            <xsl:call-template name="time2sec">
              <xsl:with-param name="time">
                <xsl:value-of select="./@time"/>
              </xsl:with-param>
            </xsl:call-template>
          </xsl:variable>

          <!-- Time difference between surrounding waypoints -->
          <xsl:variable name="delta">
            <xsl:choose>
              <xsl:when test="$timefirst &gt;= 0">
                <xsl:value-of select="$timesecond - $timefirst"/>
              </xsl:when>
              <xsl:otherwise>
                <xsl:value-of select="0"/>
              </xsl:otherwise>
            </xsl:choose>
          </xsl:variable>

          <!-- Depths of surrounding waypoints -->
          <xsl:variable name="depthfirst">
            <xsl:call-template name="depth2mm">
              <xsl:with-param name="depth">
                <xsl:value-of select="//sample[position() = $position]/@depth"/>
              </xsl:with-param>
            </xsl:call-template>
          </xsl:variable>
          <xsl:variable name="depthsecond">
            <xsl:call-template name="depth2mm">
              <xsl:with-param name="depth">
                <xsl:value-of select="./@depth"/>
              </xsl:with-param>
            </xsl:call-template>
          </xsl:variable>

          <!-- Approximated waypoints -->
          <xsl:variable name="timesec">
            <xsl:call-template name="time2sec">
              <xsl:with-param name="time">
                <xsl:value-of select="./@time"/>
              </xsl:with-param>
            </xsl:call-template>
          </xsl:variable>

          <!-- Crafting waypoints for events in-between samples -->
          <xsl:for-each select="preceding-sibling::event[substring-before(@time, ':') * 60 + substring-before(substring-after(@time, ':'), ' ')&lt;$timesec and substring-before(@time, ':') * 60 + substring-before(substring-after(@time, ':'), ' ')&gt;($timesec - $delta)]">
            <waypoint>
              <depth>
                <xsl:call-template name="approximatedepth">
                  <xsl:with-param name="timefirst">
                    <xsl:value-of select="$timefirst"/>
                  </xsl:with-param>
                  <xsl:with-param name="timesecond">
                    <xsl:value-of select="$timesecond"/>
                  </xsl:with-param>
                  <xsl:with-param name="depthfirst">
                    <xsl:value-of select="$depthfirst"/>
                  </xsl:with-param>
                  <xsl:with-param name="depthsecond">
                    <xsl:value-of select="$depthsecond"/>
                  </xsl:with-param>
                  <xsl:with-param name="timeevent">
                    <xsl:call-template name="time2sec">
                      <xsl:with-param name="time">
                        <xsl:value-of select="@time"/>
                      </xsl:with-param>
                    </xsl:call-template>
                  </xsl:with-param>
                </xsl:call-template>
              </depth>

              <divetime>
                <xsl:call-template name="time2sec">
                  <xsl:with-param name="time">
                    <xsl:value-of select="@time"/>
                  </xsl:with-param>
                </xsl:call-template>
              </divetime>

              <xsl:if test="@name = 'gaschange'">
                <switchmix>
                  <xsl:attribute name="ref">
                    <xsl:value-of select="@value"/>
                  </xsl:attribute>
                </switchmix>
              </xsl:if>

              <xsl:if test="@name = 'heading'">
                <heading>
                  <xsl:value-of select="@value"/>
                </heading>
              </xsl:if>

              <xsl:if test="not(@name = 'heading') and not(@name = 'gaschange')">
                <alarm>
                  <xsl:value-of select="@name"/>
                </alarm>
              </xsl:if>

            </waypoint>
          </xsl:for-each>
          <!-- Approximated waypoints -->

          <!-- Recorded waypoints and events occurring at the exact same time -->
          <waypoint>
            <depth>
              <xsl:value-of select="substring-before(./@depth, ' ')"/>
            </depth>

            <divetime>
              <xsl:call-template name="time2sec">
                <xsl:with-param name="time">
                  <xsl:value-of select="./@time"/>
                </xsl:with-param>
              </xsl:call-template>
            </divetime>

            <xsl:if test="./@pressure != ''">
              <tankpressure>
                <xsl:value-of select="substring-before(./@pressure, ' ') * 100000"/>
              </tankpressure>
            </xsl:if>

            <xsl:if test="./@temp != ''">
              <temperature>
                <xsl:value-of select="format-number(substring-before(./@temp, ' ') + 273.15, '0.00')"/>
              </temperature>
            </xsl:if>

            <xsl:variable name="time">
              <xsl:value-of select="@time"/>
            </xsl:variable>

            <xsl:for-each select="preceding-sibling::event[@time = $time and @name='gaschange']/@value">
              <switchmix>
                <xsl:attribute name="ref">
                  <xsl:value-of select="."/>
                </xsl:attribute>
              </switchmix>
            </xsl:for-each>

            <xsl:for-each select="preceding-sibling::event[@time = $time and @name='heading']/@value">
              <heading>
                <xsl:value-of select="."/>
              </heading>
            </xsl:for-each>

            <xsl:for-each select="preceding-sibling::event[@time = $time and not(@name='heading' or @name='gaschange')]/@name">
              <alarm>
                <xsl:value-of select="."/>
              </alarm>
            </xsl:for-each>
            <!-- Recorded waypoints -->
          </waypoint>
        </xsl:for-each>
      </samples>

      <xsl:for-each select="cylinder">
        <tankdata>
          <link>
            <xsl:attribute name="ref">
              <xsl:choose>
                <xsl:when test="@o2 != ''">
                  <xsl:value-of select="substring-before(@o2, '.')"/>
                </xsl:when>
                <xsl:otherwise>
                  <xsl:value-of select="'21'"/>
                </xsl:otherwise>
              </xsl:choose>
            </xsl:attribute>
          </link>

          <xsl:if test="@size">
            <tankvolume>
              <xsl:value-of select="substring-before(@size, ' ')"/>
            </tankvolume>
          </xsl:if>
          <xsl:choose>
            <xsl:when test="divecomputer[1]/sample/@pressure != ''">
              <tankpressurebegin>
                <xsl:value-of select="substring-before(divecomputer[1]/sample/@pressure[1], ' ') * 100000"/>
              </tankpressurebegin>
            </xsl:when>
            <xsl:otherwise>
              <xsl:if test="@start">
                <tankpressurebegin>
                  <xsl:value-of select="substring-before(@start, ' ') * 100000"/>
                </tankpressurebegin>
              </xsl:if>
            </xsl:otherwise>
          </xsl:choose>

          <xsl:choose>
            <xsl:when test="count(divecomputer[1]/sample[@pressure]) &gt; 0">
              <tankpressureend>
                <xsl:value-of select="substring-before(divecomputer[1]/sample[@pressure][last()]/@pressure, ' ') * 100000"/>
              </tankpressureend>
            </xsl:when>
            <xsl:otherwise>
              <xsl:if test="@end">
                <tankpressureend>
                  <xsl:value-of select="substring-before(@end, ' ') * 100000"/>
                </tankpressureend>
              </xsl:if>
            </xsl:otherwise>
          </xsl:choose>

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

      <informationafterdive>
        <xsl:if test="node()/depth/@max != ''">
          <greatestdepth>
            <xsl:value-of select="substring-before(node()/depth/@max, ' ')"/>
          </greatestdepth>
        </xsl:if>
        <xsl:if test="node()/depth/@mean != ''">
          <averagedepth>
            <xsl:value-of select="substring-before(node()/depth/@mean, ' ')"/>
          </averagedepth>
        </xsl:if>
        <xsl:if test="./@duration != ''">
          <diveduration>
            <xsl:call-template name="time2sec">
              <xsl:with-param name="time">
                <xsl:value-of select="./@duration"/>
              </xsl:with-param>
            </xsl:call-template>
          </diveduration>
        </xsl:if>
        <xsl:if test="temperature/@water|divetemperature/@water != ''">
          <lowesttemperature>
            <xsl:value-of select="format-number(substring-before(temperature/@water|divetemperature/@water, ' ') + 273.15, '0.00')"/>
          </lowesttemperature>
        </xsl:if>
        <notes>
          <para>
            <xsl:value-of select="notes"/>
          </para>
        </notes>
        <rating>
          <ratingvalue>
            <xsl:choose>
              <xsl:when test="./@rating = 0">
                <xsl:value-of select="'1'"/>
              </xsl:when>
              <xsl:when test="./@rating != ''">
                <xsl:value-of select="./@rating * 2"/>
              </xsl:when>
            </xsl:choose>
          </ratingvalue>
        </rating>
        <visibility>
            <xsl:choose>
              <xsl:when test="./@visibility = 1">
                <xsl:value-of select="1"/>
              </xsl:when>
              <xsl:when test="./@visibility = 2">
                <xsl:value-of select="3"/>
              </xsl:when>
              <xsl:when test="./@visibility = 3">
                <xsl:value-of select="5"/>
              </xsl:when>
              <xsl:when test="./@visibility = 4">
                <xsl:value-of select="10"/>
              </xsl:when>
              <xsl:when test="./@visibility = 5">
                <xsl:value-of select="15"/>
              </xsl:when>
            </xsl:choose>
        </visibility>
      </informationafterdive>

    </dive>
  </xsl:template>


<!-- Approximate waypoint depth.
     Parameters:
     timefirst    Time of the previous waypoint in seconds
     timesecond   Time of the current waypoint in seconds
     depthfirst   Depth of the first waypoint in mm
     depthsecond  Depth of the second waypoint in mm
     timeevent    Time of the event

     Returns:     Depth approximation of event in m
     -->

<xsl:template name="approximatedepth">
  <xsl:param name="timefirst"/>
  <xsl:param name="timesecond"/>
  <xsl:param name="depthfirst"/>
  <xsl:param name="depthsecond"/>
  <xsl:param name="timeevent"/>

  <xsl:value-of select="format-number((($timeevent - $timefirst) div ($timesecond - $timefirst) * ($depthsecond - $depthfirst) + $depthfirst) div 1000, '#.##')"/>

</xsl:template>

</xsl:stylesheet>