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<?xml version='1.0' encoding='UTF-8'?><!-- -*- indent-tabs-mode: nil -*- -->
<!--
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
details.
You should have received a copy of the GNU Lesser General Public License
along with this program; see the file COPYING.LGPL. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
-->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<!--!!==========================================================================
Common XSLT Utilities
REMARK: Describe this module
-->
<!--**==========================================================================
utils.strip_newlines
Strips leading or trailing newlines from a string
$string: The string to strip newlines from
$leading: Whether to strip leading newlines
$trailing: Whether to strip trailing newlines
This template strips at most one leading and one trailing newline from
${string}. This is useful for preformatted block elements where leading and
trailing newlines are ignored to make source formatting easier for authors.
-->
<xsl:template name="utils.strip_newlines">
<xsl:param name="string"/>
<xsl:param name="leading" select="false()"/>
<xsl:param name="trailing" select="false()"/>
<xsl:choose>
<xsl:when test="$leading">
<xsl:variable name="new">
<xsl:choose>
<xsl:when test="starts-with($string, '
')">
<xsl:value-of select="substring($string, 2)"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$string"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:choose>
<xsl:when test="$trailing">
<xsl:call-template name="utils.strip_newlines">
<xsl:with-param name="string" select="$new"/>
<xsl:with-param name="leading" select="false()"/>
<xsl:with-param name="trailing" select="true()"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$new"/>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:when test="$trailing">
<xsl:choose>
<xsl:when test="substring($string, string-length($string)) = '
'">
<xsl:value-of select="substring($string, 1, string-length($string) - 1 )"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$string"/>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
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