html.xsl revision a2652f3451528565db1f85db6953fc30799d7ead
<?xml version="1.0"?>
<!--
Copyright 2003-2006 The Apache Software Foundation or its licensors, as
applicable.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml">
<!-- ==================================================================== -->
<!-- Ordinary HTML that must be converted to latex -->
<!-- ==================================================================== -->
<xsl:template match="ul">
<xsl:text>\begin{itemize}
</xsl:text>
<xsl:apply-templates/>
<xsl:text>\end{itemize}
</xsl:text>
</xsl:template>
<xsl:template match="ol">
<xsl:text>\begin{enumerate}
</xsl:text>
<xsl:apply-templates/>
<xsl:text>\end{enumerate}
</xsl:text>
</xsl:template>
<xsl:template match="li">
<xsl:text>\item </xsl:text>
<xsl:apply-templates/>
<xsl:text>
</xsl:text>
</xsl:template>
<xsl:template match="dl">
<xsl:text>\begin{description}
</xsl:text>
<xsl:apply-templates/>
<xsl:text>\end{description}
</xsl:text>
</xsl:template>
<xsl:template match="dt">
<xsl:text>\item[</xsl:text><xsl:apply-templates/>
<xsl:text>] </xsl:text>
</xsl:template>
<xsl:template match="dd">
<xsl:apply-templates/>
</xsl:template>
<!-- Latex doesn't like successive line breaks, so replace any
sequence of two or more br separated only by white-space with
one line break followed by smallskips. -->
<xsl:template match="br">
<xsl:choose>
<xsl:when test="name(preceding-sibling::node()[1])='br' or name(preceding-sibling::node()[1])='indent'">
<xsl:text>\smallskip </xsl:text>
</xsl:when>
<xsl:when test="name(preceding-sibling::node()[2])='br' or name(preceding-sibling::node()[2])='indent'">
<xsl:choose>
<xsl:when test="normalize-space(preceding-sibling::node()[1])=''">
<xsl:text>\smallskip </xsl:text>
</xsl:when>
<xsl:otherwise>
<!-- Don't put a line break if we are the last thing -->
<xsl:if test="not(position()=last()) and not(position()=last()-1 and normalize-space(following-sibling::node()[1])='')">
<xsl:text>\\ </xsl:text>
</xsl:if>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:otherwise>
<!-- Don't put a line break if we are the last thing -->
<xsl:if test="not(position()=last()) and not(position()=last()-1 and normalize-space(following-sibling::node()[1])='')">
<xsl:text>\\ </xsl:text>
</xsl:if>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match="p">
<xsl:apply-templates/>
<xsl:text>\par
</xsl:text>
</xsl:template>
<xsl:template match="code">
<xsl:text>\texttt{</xsl:text>
<xsl:apply-templates/>
<xsl:text>}</xsl:text>
</xsl:template>
<xsl:template match="strong">
<xsl:text>\textbf{</xsl:text>
<xsl:apply-templates/>
<xsl:text>}</xsl:text>
</xsl:template>
<xsl:template match="em">
<xsl:text>\textit{</xsl:text>
<xsl:apply-templates/>
<xsl:text>}</xsl:text>
</xsl:template>
<!-- Value-of used here explicitly because we don't wan't latex-escaping
performed. Of course, this will conflict with html where some tags are
interpreted in pre -->
<xsl:template match="pre">
<xsl:text>\begin{verbatim}
</xsl:text>
<xsl:value-of select="."/>
<xsl:text>\end{verbatim}
</xsl:text>
</xsl:template>
<xsl:template match="blockquote">
<xsl:text>\begin{quotation}
</xsl:text>
<xsl:apply-templates/>
<xsl:text>\end{quotation}
</xsl:text>
</xsl:template>
<!-- XXX: We need to deal with table headers -->
<xsl:template match="table">
<xsl:variable name="table-type">
<xsl:choose>
<xsl:when test="count(tr) > 15">longtable</xsl:when>
<xsl:otherwise>tabular</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:text>\begin{</xsl:text><xsl:value-of select="$table-type"/>
<xsl:text>}{|</xsl:text>
<xsl:choose>
<xsl:when test="columnspec">
<xsl:text>l</xsl:text>
<xsl:if test="../../@border and not(position()=last())">
<xsl:text>|</xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:when>
<xsl:otherwise>
<xsl:for-each select="tr[1]/*">
<xsl:text>l</xsl:text>
<xsl:if test="../../@border and not(position()=last())">
<xsl:text>|</xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:otherwise>
</xsl:choose>
<xsl:text>|}\hline
</xsl:text>
<xsl:apply-templates select="tr"/>
<xsl:text>\hline\end{</xsl:text>
<xsl:value-of select="$table-type"/>
<xsl:text>}
</xsl:text>
</xsl:template>
<xsl:template match="tr">
<xsl:apply-templates select="td|th"/>
<xsl:text>\\</xsl:text>
<xsl:if test="../@border and not(position()=last())">
<xsl:text>\hline</xsl:text>
</xsl:if>
<xsl:text>
</xsl:text>
</xsl:template>
<xsl:template match="td">
<xsl:variable name="pos" select="position()"/>
<xsl:text>\begin{minipage}[t]{</xsl:text>
<xsl:choose>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select=".95 div last()"/>
</xsl:otherwise>
</xsl:choose>
<xsl:text>\textwidth}\small </xsl:text>
<xsl:apply-templates/>
<xsl:text>\end{minipage}</xsl:text>
<xsl:if test="not(position()=last())">
<xsl:text> & </xsl:text>
</xsl:if>
</xsl:template>
<xsl:template match="th">
<xsl:variable name="pos" select="position()"/>
<xsl:text>\begin{minipage}[t]{</xsl:text>
<xsl:choose>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select=".95 div last()"/>
</xsl:otherwise>
</xsl:choose>
<xsl:text>\textwidth}\bfseries </xsl:text>
<xsl:apply-templates/>
<xsl:text>\end{minipage}</xsl:text>
<xsl:if test="not(position()=last())">
<xsl:text> & </xsl:text>
</xsl:if>
</xsl:template>
<!--
This is a horrible hack, but it seems to mostly work. It does a
few things:
1. Transforms references starting in http:// to footnotes with the
appropriate hyperref macro to make them clickable. (This needs
to be expanded to deal with news: and needs to be adjusted to
deal with "#", which is creating bad links at the moment.)
2. For intra-document references, constructs the appropriate absolute
reference using a latex \pageref.
This involves applying a simplified version of the
general URL resolution rules to deal with ../. It only works for
one level of subdirectory.
3. It is also necessary to deal with the fact that index pages
get references as "/".
-->
<xsl:template match="a">
<xsl:apply-templates/>
<xsl:if test="@href">
<xsl:variable name="fileref">
<xsl:choose>
<xsl:when test="contains(@href, '.html')">
<xsl:value-of select="substring-before(@href, '.html')"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="concat(@href, 'index')"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:choose>
<xsl:when test="starts-with(@href, 'http:') or starts-with(@href, 'news:') or starts-with(@href, 'mailto:')">
<xsl:if test="not(.=@href)">
<xsl:text>\footnote{</xsl:text>
<xsl:text>\href{</xsl:text>
<xsl:call-template name="replace-string">
<xsl:with-param name="text" select="@href"/>
<xsl:with-param name="replace" select="'#'"/>
<xsl:with-param name="with" select="'\#'"/>
</xsl:call-template>
<xsl:text>}{</xsl:text>
<xsl:call-template name="ltescape">
<xsl:with-param name="string" select="@href"/>
</xsl:call-template>
<xsl:text>}}</xsl:text>
</xsl:if>
</xsl:when>
<xsl:when test="starts-with(@href, '#')">
<!-- Don't do inter-section references -->
</xsl:when>
<xsl:otherwise>
<xsl:text> (p.\ \pageref{</xsl:text>
<xsl:call-template name="replace-string">
<xsl:with-param name="replace" select="'#'"/>
<xsl:with-param name="with" select="':'"/>
<xsl:with-param name="text">
<xsl:choose>
<xsl:when test="$relpath='.'">
<xsl:value-of select="concat('/',$fileref)"/>
</xsl:when>
<xsl:otherwise>
<xsl:choose>
<xsl:when test="starts-with($fileref,'..')">
<xsl:value-of select="substring-after($fileref,'..')"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="concat($path,$fileref)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>
</xsl:choose>
</xsl:with-param>
</xsl:call-template>
<xsl:text>}) </xsl:text>
</xsl:otherwise>
</xsl:choose>
</xsl:if>
</xsl:template>
<xsl:template match="img">
<xsl:text>\includegraphics{</xsl:text>
<xsl:call-template name="replace-string">
<xsl:with-param name="text" select="concat('.',$path,@src)"/>
<xsl:with-param name="replace" select="'.gif'"/>
<xsl:with-param name="with" select="''"/>
</xsl:call-template>
<xsl:text>}</xsl:text>
</xsl:template>
</xsl:stylesheet>