<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns="http://www.w3.org/1999/xhtml" xmlns:tbx="http://www.lisa.org/TBX-Specification.33.0.html" xmlns:iso="http://www.iso.org/ns/1.0" xmlns:cals="http://www.oasis-open.org/specs/tm9901" xmlns:html="http://www.w3.org/1999/xhtml" xmlns:teix="http://www.tei-c.org/ns/Examples" xmlns:s="http://www.ascc.net/xml/schematron" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:tei="http://www.tei-c.org/ns/1.0" xmlns:t="http://www.thaiopensource.com/ns/annotations" xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0" xmlns:rng="http://relaxng.org/ns/structure/1.0" exclude-result-prefixes="tei html t a rng s iso tbx cals teix" version="2.0">
  <doc xmlns="http://www.oxygenxml.com/ns/doc/xsl" scope="stylesheet" type="stylesheet">
      <desc>

         <p>This software is dual-licensed:

1. Distributed under a Creative Commons Attribution-ShareAlike 3.0
Unported License http://creativecommons.org/licenses/by-sa/3.0/ 

2. http://www.opensource.org/licenses/BSD-2-Clause
		
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.

This software is provided by the copyright holders and contributors
"as is" and any express or implied warranties, including, but not
limited to, the implied warranties of merchantability and fitness for
a particular purpose are disclaimed. In no event shall the copyright
holder or contributors be liable for any direct, indirect, incidental,
special, exemplary, or consequential damages (including, but not
limited to, procurement of substitute goods or services; loss of use,
data, or profits; or business interruption) however caused and on any
theory of liability, whether in contract, strict liability, or tort
(including negligence or otherwise) arising in any way out of the use
of this software, even if advised of the possibility of such damage.
</p>
         <p>Author: See AUTHORS</p>
         <p>Id: $Id$</p>
         <p>Copyright: 2013, TEI Consortium</p>
      </desc>
   </doc>

  <doc xmlns="http://www.oxygenxml.com/ns/doc/xsl" type="stylesheet">
    <desc> Process CALS tables, using code borrowed from Andrew Welch
      http://www.biglist.com/lists/xsl-list/archives/200202/msg00666.html</desc>
  </doc>
  <xsl:template match="cals:tgroup">
    <table>
      <xsl:if test="@align">
        <xsl:attribute name="align">
          <xsl:value-of select="@align"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:choose>
        <xsl:when test="../@frame='topbot'">
          <xsl:attribute name="style">border-top:thin solid
	black;border-bottom:thin solid black</xsl:attribute>
        </xsl:when>
        <xsl:otherwise>
          <xsl:attribute name="border">0</xsl:attribute>
        </xsl:otherwise>
      </xsl:choose>
      <xsl:variable name="colgroup">
        <colgroup>
          <xsl:call-template name="generate.colgroup">
            <xsl:with-param name="cols" select="count(cals:colspec)"/>
          </xsl:call-template>
        </colgroup>
      </xsl:variable>
      <xsl:copy-of select="$colgroup"/>
      <xsl:apply-templates/>
    </table>
  </xsl:template>
  <xsl:template match="cals:colspec"/>
  <xsl:template match="cals:spanspec"/>
  <xsl:template match="cals:thead|cals:tfoot">
    <xsl:element name="{name(.)}">
      <xsl:if test="@align">
        <xsl:attribute name="align">
          <xsl:value-of select="@align"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@char">
        <xsl:attribute name="char">
          <xsl:value-of select="@char"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@charoff">
        <xsl:attribute name="charoff">
          <xsl:value-of select="@charoff"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@valign">
        <xsl:attribute name="valign">
          <xsl:value-of select="@valign"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:apply-templates/>
    </xsl:element>
  </xsl:template>
  <xsl:template match="cals:tbody">
    <tbody>
      <xsl:if test="@align">
        <xsl:attribute name="align">
          <xsl:value-of select="@align"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@char">
        <xsl:attribute name="char">
          <xsl:value-of select="@char"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@charoff">
        <xsl:attribute name="charoff">
          <xsl:value-of select="@charoff"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@valign">
        <xsl:attribute name="valign">
          <xsl:value-of select="@valign"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:apply-templates/>
    </tbody>
  </xsl:template>
  <xsl:template match="cals:row">
    <tr>
      <xsl:if test="@align">
        <xsl:attribute name="align">
          <xsl:value-of select="@align"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@char">
        <xsl:attribute name="char">
          <xsl:value-of select="@char"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@charoff">
        <xsl:attribute name="charoff">
          <xsl:value-of select="@charoff"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@valign">
        <xsl:attribute name="valign">
          <xsl:value-of select="@valign"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:apply-templates/>
    </tr>
  </xsl:template>
  <xsl:template match="cals:thead/cals:row/cals:entry">
    <xsl:call-template name="process.cell">
      <xsl:with-param name="cellgi">th</xsl:with-param>
    </xsl:call-template>
  </xsl:template>
  <xsl:template match="cals:tbody/cals:row/cals:entry">
    <xsl:call-template name="process.cell">
      <xsl:with-param name="cellgi">td</xsl:with-param>
    </xsl:call-template>
  </xsl:template>
  <xsl:template match="cals:tfoot/cals:row/cals:entry">
    <xsl:call-template name="process.cell">
      <xsl:with-param name="cellgi">th</xsl:with-param>
    </xsl:call-template>
  </xsl:template>
  <xsl:template name="process.cell">
    <xsl:param name="cellgi">td</xsl:param>
    <xsl:variable name="empty.cell" select="count(node()) = 0"/>
    <xsl:variable name="entry.colnum">
      <xsl:call-template name="entry.colnum"/>
    </xsl:variable>
    <xsl:if test="$entry.colnum != ''">
      <xsl:variable name="prev.entry" select="preceding-sibling::*[1]"/>
      <xsl:variable name="prev.ending.colnum">
        <xsl:choose>
          <xsl:when test="$prev.entry">
            <xsl:call-template name="entry.ending.colnum">
              <xsl:with-param name="entry" select="$prev.entry"/>
            </xsl:call-template>
          </xsl:when>
          <xsl:otherwise>0</xsl:otherwise>
        </xsl:choose>
      </xsl:variable>
      <xsl:call-template name="add-empty-entries">
        <xsl:with-param name="number">
          <xsl:choose>
            <xsl:when test="$prev.ending.colnum = ''">0</xsl:when>
            <xsl:otherwise>
              <xsl:value-of select="$entry.colnum - $prev.ending.colnum - 1"/>
            </xsl:otherwise>
          </xsl:choose>
        </xsl:with-param>
      </xsl:call-template>
    </xsl:if>
    <xsl:element name="{$cellgi}">
      <xsl:if test="@spanname">
        <xsl:variable name="namest" select="ancestor::cals:tgroup/cals:spanspec[@spanname=./@spanname]/@namest"/>
        <xsl:variable name="nameend" select="ancestor::cals:tgroup/cals:spanspec[@spanname=./@spanname]/@nameend"/>
        <xsl:variable name="colst" select="ancestor::*[cals:colspec/@colname=$namest]/cals:colspec[@colname=$namest]/@colnum"/>
        <xsl:variable name="colend" select="ancestor::*[cals:colspec/@colname=$nameend]/cals:colspec[@colname=$nameend]/@colnum"/>
        <xsl:attribute name="colspan">
          <xsl:value-of select="number($colend) - number($colst) + 1"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@morerows">
        <xsl:attribute name="rowspan">
          <xsl:value-of select="@morerows+1"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@namest">
        <xsl:attribute name="colspan">
          <xsl:call-template name="calculate.colspan"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@align">
        <xsl:attribute name="align">
          <xsl:value-of select="@align"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@char">
        <xsl:attribute name="char">
          <xsl:value-of select="@char"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@charoff">
        <xsl:attribute name="charoff">
          <xsl:value-of select="@charoff"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@valign">
        <xsl:attribute name="valign">
          <xsl:value-of select="@valign"/>
        </xsl:attribute>
      </xsl:if>
      <xsl:if test="@rowsep='1'">
        <xsl:attribute name="style">border-bottom:thin solid black</xsl:attribute>
      </xsl:if>
      <xsl:if test="not(preceding-sibling::*)                   and ancestor::cals:row/@id">
        <xsl:attribute name="id" select="ancestor::cals:row/@id"/>
      </xsl:if>
      <xsl:if test="@id">
        <xsl:attribute name="id" select="@id"/>
      </xsl:if>
      <xsl:choose>
        <xsl:when test="$empty.cell">
          <xsl:text>&#160;</xsl:text>
        </xsl:when>
        <xsl:otherwise>
          <xsl:apply-templates/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:element>
  </xsl:template>
  <xsl:template name="add-empty-entries">
    <xsl:param name="number" select="'0'"/>
    <xsl:choose>
      <xsl:when test="$number &lt;= 0"/>
      <xsl:otherwise>
        <td>&#160;</td>
        <xsl:call-template name="add-empty-entries">
          <xsl:with-param name="number" select="$number - 1"/>
        </xsl:call-template>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>
  <xsl:template name="entry.colnum">
    <xsl:param name="entry" select="."/>
    <xsl:choose>
      <xsl:when test="$entry/@colname">
        <xsl:variable name="colname" select="$entry/@colname"/>
        <xsl:variable name="colspec" select="$entry/ancestor::cals:tgroup/cals:colspec[@colname=$colname]"/>
        <xsl:call-template name="colspec.colnum">
          <xsl:with-param name="colspec" select="$colspec"/>
        </xsl:call-template>
      </xsl:when>
      <xsl:when test="$entry/@namest">
        <xsl:variable name="namest" select="$entry/@namest"/>
        <xsl:variable name="colspec" select="$entry/ancestor::cals:tgroup/cals:colspec[@colname=$namest]"/>
        <xsl:call-template name="colspec.colnum">
          <xsl:with-param name="colspec" select="$colspec"/>
        </xsl:call-template>
      </xsl:when>
      <xsl:when test="count($entry/preceding-sibling::*) = 0">1</xsl:when>
      <xsl:otherwise>
        <xsl:variable name="pcol">
          <xsl:call-template name="entry.ending.colnum">
            <xsl:with-param name="entry" select="$entry/preceding-sibling::*[1]"/>
          </xsl:call-template>
        </xsl:variable>
        <xsl:value-of select="$pcol + 1"/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>
  <xsl:template name="entry.ending.colnum">
    <xsl:param name="entry" select="."/>
    <xsl:choose>
      <xsl:when test="$entry/@colname">
        <xsl:variable name="colname" select="$entry/@colname"/>
        <xsl:variable name="colspec" select="$entry/ancestor::cals:tgroup/cals:colspec[@colname=$colname]"/>
        <xsl:call-template name="colspec.colnum">
          <xsl:with-param name="colspec" select="$colspec"/>
        </xsl:call-template>
      </xsl:when>
      <xsl:when test="$entry/@nameend">
        <xsl:variable name="nameend" select="$entry/@nameend"/>
        <xsl:variable name="colspec" select="$entry/ancestor::cals:tgroup/cals:colspec[@colname=$nameend]"/>
        <xsl:call-template name="colspec.colnum">
          <xsl:with-param name="colspec" select="$colspec"/>
        </xsl:call-template>
      </xsl:when>
      <xsl:when test="count($entry/preceding-sibling::*) = 0">1</xsl:when>
      <xsl:otherwise>
        <xsl:variable name="pcol">
          <xsl:call-template name="entry.ending.colnum">
            <xsl:with-param name="entry" select="$entry/preceding-sibling::*[1]"/>
          </xsl:call-template>
        </xsl:variable>
        <xsl:value-of select="$pcol + 1"/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>
  <xsl:template name="colspec.colnum">
    <xsl:param name="colspec" select="."/>
    <xsl:choose>
      <xsl:when test="$colspec/@colnum">
        <xsl:value-of select="$colspec/@colnum"/>
      </xsl:when>
      <xsl:when test="$colspec/preceding-sibling::cals:colspec">
        <xsl:variable name="prec.colspec.colnum">
          <xsl:call-template name="colspec.colnum">
            <xsl:with-param name="colspec" select="$colspec/preceding-sibling::cals:colspec[1]"/>
          </xsl:call-template>
        </xsl:variable>
        <xsl:value-of select="$prec.colspec.colnum + 1"/>
      </xsl:when>
      <xsl:otherwise>1</xsl:otherwise>
    </xsl:choose>
  </xsl:template>
  <xsl:template name="generate.colgroup">
    <xsl:param name="cols" select="1"/>
    <xsl:param name="count" select="1"/>
    <xsl:choose>
      <xsl:when test="$count&gt;$cols"/>
      <xsl:otherwise>
        <xsl:call-template name="generate.col">
          <xsl:with-param name="countcol" select="$count"/>
        </xsl:call-template>
        <xsl:call-template name="generate.colgroup">
          <xsl:with-param name="cols" select="$cols"/>
          <xsl:with-param name="count" select="$count+1"/>
        </xsl:call-template>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>
  <xsl:template name="generate.col">
    <xsl:param name="countcol">1</xsl:param>
    <xsl:param name="colspecs" select="./cals:colspec"/>
    <xsl:param name="count">1</xsl:param>
    <xsl:param name="colnum">1</xsl:param>
    <xsl:choose>
      <xsl:when test="$count&gt;count($colspecs)">
        <col/>
      </xsl:when>
      <xsl:otherwise>
        <xsl:variable name="colspec" select="$colspecs[$count=position()]"/>
        <xsl:variable name="colspec.colnum">
          <xsl:choose>
            <xsl:when test="$colspec/@colnum">
              <xsl:value-of select="$colspec/@colnum"/>
            </xsl:when>
            <xsl:otherwise>
              <xsl:value-of select="$colnum"/>
            </xsl:otherwise>
          </xsl:choose>
        </xsl:variable>
        <xsl:choose>
          <xsl:when test="$colspec.colnum=$countcol">
            <col>
              <xsl:if test="$colspec/@align">
                <xsl:attribute name="align">
                  <xsl:value-of select="$colspec/@align"/>
                </xsl:attribute>
              </xsl:if>
              <xsl:if test="$colspec/@char">
                <xsl:attribute name="char">
                  <xsl:value-of select="$colspec/@char"/>
                </xsl:attribute>
              </xsl:if>
              <xsl:if test="$colspec/@charoff">
                <xsl:attribute name="charoff">
                  <xsl:value-of select="$colspec/@charoff"/>
                </xsl:attribute>
              </xsl:if>
            </col>
          </xsl:when>
          <xsl:otherwise>
            <xsl:call-template name="generate.col">
              <xsl:with-param name="countcol" select="$countcol"/>
              <xsl:with-param name="colspecs" select="$colspecs"/>
              <xsl:with-param name="count" select="$count+1"/>
              <xsl:with-param name="colnum">
                <xsl:choose>
                  <xsl:when test="$colspec/@colnum">
                    <xsl:value-of select="$colspec/@colnum + 1"/>
                  </xsl:when>
                  <xsl:otherwise>
                    <xsl:value-of select="$colnum + 1"/>
                  </xsl:otherwise>
                </xsl:choose>
              </xsl:with-param>
            </xsl:call-template>
          </xsl:otherwise>
        </xsl:choose>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>
  <xsl:template name="colspec.colwidth">
    <!-- when this macro is called, the current context must be an entry -->
    <xsl:param name="colname"/>
    <!-- .. = row, ../.. = thead|tbody, ../../.. = cals:tgroup -->
    <xsl:param name="colspecs" select="../../../../cals:tgroup/cals:colspec"/>
    <xsl:param name="count">1</xsl:param>
    <xsl:choose>
      <xsl:when test="$count&gt;count($colspecs)"/>
      <xsl:otherwise>
        <xsl:variable name="colspec" select="$colspecs[$count=position()]"/>
        <xsl:choose>
          <xsl:when test="$colspec/@colname=$colname">
            <xsl:value-of select="$colspec/@colwidth"/>
          </xsl:when>
          <xsl:otherwise>
            <xsl:call-template name="colspec.colwidth">
              <xsl:with-param name="colname" select="$colname"/>
              <xsl:with-param name="colspecs" select="$colspecs"/>
              <xsl:with-param name="count" select="$count+1"/>
            </xsl:call-template>
          </xsl:otherwise>
        </xsl:choose>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>
  <xsl:template name="calculate.colspan">
    <xsl:param name="entry" select="."/>
    <xsl:variable name="namest" select="$entry/@namest"/>
    <xsl:variable name="nameend" select="$entry/@nameend"/>
    <xsl:variable name="scol">
      <xsl:call-template name="colspec.colnum">
        <xsl:with-param name="colspec" select="$entry/ancestor::cals:tgroup/cals:colspec[@colname=$namest]"/>
      </xsl:call-template>
    </xsl:variable>
    <xsl:variable name="ecol">
      <xsl:call-template name="colspec.colnum">
        <xsl:with-param name="colspec" select="$entry/ancestor::cals:tgroup/cals:colspec[@colname=$nameend]"/>
      </xsl:call-template>
    </xsl:variable>
    <xsl:value-of select="$ecol - $scol + 1"/>
  </xsl:template>
</xsl:stylesheet>
