XSLT to transform JDiveLog to Subsurface format

XSLT file to transfer dive logs from JDiveLog format to Subsurface
format. It can be used on command line with the following syntax:
	xsltproc <divelog.jlb> > <divelog.xml>

Basic functionality such as depth readings and dive information is
currently supported. However, this is only tested in metric units.

What is currently missing is at least tank changes and tank pressure (as
no sample data was available).

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/xslt/jdivelog2subsurface.xslt b/xslt/jdivelog2subsurface.xslt
new file mode 100644 (file)
index 0000000..73b4590
--- /dev/null
+++ b/xslt/jdivelog2subsurface.xslt
@@ -0,0 +1,232 @@
+<?xml version="1.0"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
+  <xsl:strip-space elements="*"/>
+  <xsl:output method="xml" indent="yes"/>
+
+  <xsl:template match="/">
+    <dives>
+      <program name="subsurface" version="1"/>
+      <xsl:apply-templates select="/JDiveLog/JDive"/>
+    </dives>
+  </xsl:template>
+
+  <xsl:template match="JDive">
+    <xsl:variable name="units" select="UNITS"/>
+
+    <dive number="{DiveNum}">
+      <xsl:attribute name="date">
+        <xsl:value-of select="concat(DATE/YEAR,'-',format-number(DATE/MONTH,
+           '00'), '-', format-number(DATE/DAY, '00'))"/>
+      </xsl:attribute>
+
+      <xsl:attribute name="time">
+        <xsl:value-of select="concat(format-number(TIME/HOUR, '00'), ':',
+           format-number(TIME/MINUTE, '00'))"/>
+      </xsl:attribute>
+
+      <xsl:attribute name="duration">
+        <xsl:call-template name="timeConvert">
+          <xsl:with-param name="timeSec" select="Duration"/>
+          <xsl:with-param name="units" select="$units"/>
+        </xsl:call-template>
+      </xsl:attribute>
+
+      <xsl:choose>
+        <xsl:when test="Average_Depth != ''">
+          <depth max="{concat(Depth,' m')}" mean="{concat(Average_Depth, ' m')}"/>
+        </xsl:when>
+        <xsl:otherwise>
+          <depth max="{concat(Depth,' m')}"/>
+        </xsl:otherwise>
+      </xsl:choose>
+
+      <xsl:if test="TEMPERATURE != ''">
+        <xsl:choose>
+          <xsl:when test="$units = 'si'">
+            <temperature water="{concat(format-number(TEMPERATURE - 273.15, '00.0'), ' C')}"/>
+          </xsl:when>
+          <xsl:otherwise>
+            <temperature water="{concat(TEMPERATURE, ' C')}"/>
+          </xsl:otherwise>
+        </xsl:choose>
+      </xsl:if>
+
+      <xsl:if test="diveSiteId != ''">
+        <xsl:variable name="diveSite" select="diveSiteId"/>
+        <location>
+          <xsl:value-of select="concat(/JDiveLog/Masterdata/DiveSites/DiveSite[privateId=$diveSite]/country, ' ', /JDiveLog/Masterdata/DiveSites/DiveSite[privateId=$diveSite]/state, ' ', /JDiveLog/Masterdata/DiveSites/DiveSite[privateId=$diveSite]/city, ' ', /JDiveLog/Masterdata/DiveSites/DiveSite[privateId=$diveSite]/spot)"/>
+        </location>
+      </xsl:if>
+
+      <xsl:if test="Buddy">
+        <buddy>
+          <xsl:value-of select="Buddy"/>
+        </buddy>
+      </xsl:if>
+
+      <notes>
+        <xsl:if test="DiveActivity != ''">
+          <xsl:value-of select="DiveActivity"/>
+        </xsl:if>
+        <xsl:if test="Comment != ''">
+          <xsl:if test="DiveActivity != ''">
+            <xsl:value-of select="': '"/>
+          </xsl:if>
+          <xsl:value-of select="Comment"/>
+        </xsl:if>
+        <xsl:if test="Equipment/Visibility != ''">
+Visibility: <xsl:value-of select="Equipment/Visibility"/>
+        </xsl:if>
+        <xsl:if test="Equipment/Suit != ''">
+Suit: <xsl:value-of select="Equipment/Suit"/>
+        </xsl:if>
+        <xsl:if test="Equipment/Gloves != ''">
+Gloves: <xsl:value-of select="Equipment/Gloves"/>
+        </xsl:if>
+        <xsl:if test="Equipment/Weight != ''">
+Weight: <xsl:value-of select="Equipment/Weight"/>
+        </xsl:if>
+      </notes>
+
+      <!-- cylinder -->
+      <xsl:variable name="o2">
+        <xsl:choose>
+          <xsl:when test="DIVE/GASES/MIX/O2 != ''">
+            <xsl:value-of select="concat(DIVE/GASES/MIX/O2*100, '%')"/>
+          </xsl:when>
+          <xsl:otherwise>21.0%</xsl:otherwise>
+        </xsl:choose>
+      </xsl:variable>
+      <xsl:variable name="size">
+        <xsl:choose>
+          <xsl:when test="Equipment/Tanks/Tank/MIX/TANK/TANKVOLUME != ''">
+            <xsl:value-of select="concat(Equipment/Tanks/Tank/MIX/TANK/TANKVOLUME * 1000, ' l')"/>
+          </xsl:when>
+          <xsl:otherwise>0 l</xsl:otherwise>
+        </xsl:choose>
+      </xsl:variable>
+      <xsl:variable name="start">
+        <xsl:variable name="number" select="Equipment/Tanks/Tank/MIX/TANK/PSTART"/>
+        <xsl:call-template name="pressure">
+          <xsl:with-param name="number" select="$number"/>
+          <xsl:with-param name="units" select="$units"/>
+        </xsl:call-template>
+      </xsl:variable>
+      <xsl:variable name="end">
+        <xsl:variable name="number" select="Equipment/Tanks/Tank/MIX/TANK/PEND"/>
+        <xsl:call-template name="pressure">
+          <xsl:with-param name="number" select="$number"/>
+          <xsl:with-param name="units" select="$units"/>
+        </xsl:call-template>
+      </xsl:variable>
+
+      <cylinder o2="{$o2}" size="{$size}" start="{$start}" end="{$end}"/>
+      <!-- end cylinder -->
+
+      <!-- DELTA is the sample interval -->
+      <xsl:variable name="delta">
+        <xsl:choose>
+          <xsl:when test="DIVE/SAMPLES/DELTA != ''">
+            <xsl:choose>
+              <xsl:when test="$units = 'si'">
+                <xsl:value-of select="DIVE/SAMPLES/DELTA"/>
+              </xsl:when>
+              <xsl:otherwise>
+                <xsl:value-of select="round(60 * DIVE/SAMPLES/DELTA)"/>
+              </xsl:otherwise>
+            </xsl:choose>
+          </xsl:when>
+          <xsl:otherwise>0</xsl:otherwise>
+        </xsl:choose>
+      </xsl:variable>
+      <!-- end delta -->
+
+      <!-- events -->
+      <xsl:for-each select="DIVE/SAMPLES/ALARM">
+        <xsl:if test=". != 'SURFACE'">
+          <event type="" name="{.}">
+            <xsl:attribute name="time">
+              <xsl:call-template name="timeConvert">
+                <xsl:with-param name="timeSec" select="count(preceding-sibling::D) * $delta"/>
+                <xsl:with-param name="units" select="'si'"/>
+              </xsl:call-template>
+            </xsl:attribute>
+          </event>
+        </xsl:if>
+      </xsl:for-each>
+      <!-- end events -->
+
+      <!-- dive sample - all the depth and temp readings -->
+      <xsl:for-each select="DIVE/SAMPLES/D">
+        <xsl:variable name="timeSec" select="(position() - 1) * $delta"/>
+       <xsl:variable name="time" select="concat(floor($timeSec div 60), ':',
+          format-number(floor($timeSec mod 60), '00'), ' min')"/>
+        <xsl:choose>
+          <xsl:when test="name(following-sibling::*[1]) = 'TEMPERATURE'">
+           <sample time="{$time}" depth="{concat(., ' m')}"
+              temp="{following-sibling::TEMPERATURE}"/>
+          </xsl:when>
+          <xsl:otherwise>
+            <sample time="{$time}" depth="{concat(., ' m')}"/>
+          </xsl:otherwise>
+        </xsl:choose>
+      </xsl:for-each>
+      <!-- dive sample -->
+
+    </dive>
+  </xsl:template>
+  <!-- end JDive -->
+
+  <!-- convert pressure to bars -->
+  <xsl:template name="pressure">
+    <xsl:param name="number"/>
+    <xsl:param name="units"/>
+
+    <xsl:variable name="pressure">
+      <xsl:choose>
+        <xsl:when test="$number != ''">
+          <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, $Exp + 1)"/>
+          <xsl:choose>
+            <xsl:when test="$Exp != ''">
+              <xsl:value-of select="(number($Man) * number($Fac))"/>
+            </xsl:when>
+            <xsl:otherwise>
+              <xsl:value-of select="$number"/>
+            </xsl:otherwise>
+          </xsl:choose>
+        </xsl:when>
+        <xsl:otherwise>0</xsl:otherwise>
+      </xsl:choose>
+    </xsl:variable>
+
+    <xsl:choose>
+      <xsl:when test="$units = 'si'">
+        <xsl:value-of select="concat(($pressure div 100000), ' bar')"/>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:value-of select="concat($pressure, ' bar')"/>
+      </xsl:otherwise>
+    </xsl:choose>
+
+  </xsl:template>
+  <!-- end convert pressure -->
+
+  <!-- convert time in seconds to minutes:seconds -->
+  <xsl:template name="timeConvert">
+    <xsl:param name="timeSec"/>
+    <xsl:param name="units"/>
+
+    <xsl:choose>
+      <xsl:when test="$units = 'si'">
+        <xsl:value-of select="concat(floor(number($timeSec) div 60), ':',    format-number(floor(number($timeSec) mod 60), '00'), ' min')"/>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:value-of select="concat(substring-before($timeSec, '.'), ':',           format-number(substring-after($timeSec, '.'), '00'), ' min')"/>
+      </xsl:otherwise>
+    </xsl:choose>
+  </xsl:template>
+  <!-- end convert time -->
+
+</xsl:stylesheet>