Subject: html stylesheet to xhtml stylesheet converter... From: David Carlisle <davidc@xxxxxxxxx> Date: Thu, 2 Dec 1999 11:32:39 GMT |
The following transformation takes as input an XSL stylesheet that writes HTML and produces one that writes something that with a bit of luck is XHTML. I want to use this for real on the MathML specification (a draft of which we released yesterday: http://www.w3.org/TR/MathML2/ ) so if anybody has any suggestions for improvements I'd be most grateful. It's not well tested, as I wrote most of it this morning. David <!-- html2xhtml.xsl: HTML to XHTML XSL stylesheet converter ======================================================== Copyright 1999 David Carlisle NAG Ltd The following stylesheet takes as input an XSL stylesheet that writes HTML, and produces a stylesheet that writes XML that hopefully matches the XHTML specification. (It does not check that the output matches the DTD.) It does the following things: * Adds a DOCTYPE giving FPI and URL for one of the three flavours of XHTML1. (Transitional unless the original stylesheet asked for Frameset or Strict HTML.) * Writes all HTML elements and attributes as lowercase, with elements being written in the XHTML namespace. * Writes <BR> as <br class="html-compat"/> . (Appendix C recommends <br /> rather than <br/> but an XSL stylesheet has no control over the concrete syntax of the linearisation, so adding an attribute is probably the best that can be done. (No attribute is added if the element already has attributes.) * Changes the output method from html to xml in xsl:output (and also in the xt:document extension element). * Forces a line break after opening tags of non empty elements to ensure that they are never written with XML empty syntax, so <p> </p> not <p/> * Copies any elements from XSL or XT namespaces through to the new stylesheet. --> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:axsl="/dev/null" xmlns:xt="http://www.jclark.com/xt" xmlns:xhtml="http://www.w3.org/1999/xhtml" version="1.0" > <xsl:namespace-alias stylesheet-prefix="axsl" result-prefix="xsl"/> <xsl:output method="xml" indent="yes"/> <xsl:template match="xsl:*|xt:*"> <xsl:copy> <xsl:copy-of select="@*"/> <xsl:apply-templates/> </xsl:copy> </xsl:template> <xsl:template match="xsl:output|xt:document"> <xsl:copy> <xsl:attribute name="method">xml</xsl:attribute> <xsl:choose> <xsl:when test="contains(@doctype-public,'Frameset')"> <xsl:attribute name="doctype-public"> <xsl:text>-//W3C//DTD XHTML 1.0 Frameset//EN</xsl:text> </xsl:attribute> <xsl:attribute name="doctype-system"> <xsl:text>http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd</xsl:text> </xsl:attribute> </xsl:when> <xsl:when test="contains(@doctype-public,'Strict')"> <xsl:attribute name="doctype-public"> <xsl:text>-//W3C//DTD XHTML 1.0 Strict//EN</xsl:text> </xsl:attribute> <xsl:attribute name="doctype-system"> <xsl:text>http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd</xsl:text> </xsl:attribute> </xsl:when> <xsl:otherwise> <xsl:attribute name="doctype-public"> <xsl:text>-//W3C//DTD XHTML 1.0 Transitional//EN</xsl:text> </xsl:attribute> <xsl:attribute name="doctype-system"> <xsl:text>http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd</xsl:text> </xsl:attribute> </xsl:otherwise> </xsl:choose> <xsl:attribute name="indent">yes</xsl:attribute> <xsl:copy-of select="@*[not( name(.)='method' or name(.)='doctype-public' or name(.)='doctype-system' or name(.)='indent' ) ]"/> <xsl:apply-templates/> </xsl:copy> </xsl:template> <xsl:template match="*|xsl:element"> <xsl:variable name="n"> <xsl:choose> <xsl:when test="self::xsl:element"> <xsl:value-of select="translate(@name, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz')"/> </xsl:when> <xsl:otherwise> <xsl:value-of select="translate(local-name(.), 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz')"/> </xsl:otherwise> </xsl:choose> </xsl:variable> <xsl:element name="{$n}" namespace="http://www.w3.org/1999/xhtml"> <xsl:for-each select="self::*[not(self::xsl:element)]/@* | self::xsl:element/@use-attribute-sets"> <xsl:attribute name="{translate(local-name(.), 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz')}"> <xsl:value-of select="."/> </xsl:attribute> </xsl:for-each> <xsl:choose> <xsl:when test="not(@*) and ($n='br' or $n='hr')"> <xsl:attribute name="class">html-compat</xsl:attribute> </xsl:when> <xsl:otherwise> <xsl:text>
</xsl:text> <xsl:apply-templates/> </xsl:otherwise> </xsl:choose> </xsl:element> </xsl:template> </xsl:stylesheet> XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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