Package: libsaxon-java Version: 1:6.5.5-6 Severity: important File: /usr/share/java/saxon.jar
If, in a stylesheet, the same namespace is declared both as the default namespace and with a prefix, and the prefix is present in the exclude-result-prefixes attribute, Saxon will emit a namespace declaration for the prefixed form as well. For example, in the attached testcase, the XHTML namespace is both the default namespace (xmlns) and a prefixed namespace (xmlns:xhtml). Since the "xhtml" prefix is listed in exclude-result-prefixes, it should not be emitted by Saxon, but it is anyway. This causes problems for stylesheets that process XHTML input and produces XHTML output. In XSLT 1.0, unprefixed element names in xsl:template match statements are not interpreted as being in the default namespace, but rather in no namespace. Therefore, to be able to match elements in the XHTML namespace, some prefix must be defined for the purpose of matching these elements. However, on output, the only namespace declaration that can be present is the default one, since DTDs do not understand namespace declarations. As a consequence, Saxon is not particularly well-suited to processing XHTML, which is a significant (and possibly the most common) use case. There is a workaround: if inline elements are not used, but instead replaced with xsl:element and xsl:attribute code, the spurious declaration is not emitted. This significantly bloats the stylesheet, however, and makes it hard to read. Transcript follows: lakeview ok % xsltproc foo.xsl dummy.dbx <?xml version="1.0"?> <db:book xmlns:db="http://docbook.org/ns/docbook"; xmlns="http://www.w3.org/1999/xhtml";><a href="http://validator.w3.org/check/referer";>XHTML+RDFa 1.0</a><a href="http://validator.w3.org/check/referer";>XHTML+RDFa 1.0</a></db:book> lakeview ok % java -jar /usr/share/java/xalan2.jar -in dummy.dbx -xsl foo.xsl <?xml version="1.0" encoding="UTF-8"?><db:book xmlns:db="http://docbook.org/ns/docbook"; xmlns="http://www.w3.org/1999/xhtml";><a href="http://validator.w3.org/check/referer";>XHTML+RDFa 1.0</a><a href="http://validator.w3.org/check/referer";>XHTML+RDFa 1.0</a></db:book> lakeview ok % java -jar /usr/share/java/saxon.jar dummy.dbx foo.xsl <?xml version="1.0" encoding="utf-8"?><db:book xmlns:db="http://docbook.org/ns/docbook"; xmlns="http://www.w3.org/1999/xhtml";><a xmlns:xhtml="http://www.w3.org/1999/xhtml"; href="http://validator.w3.org/check/referer";>XHTML+RDFa 1.0</a><a xmlns:xhtml="http://www.w3.org/1999/xhtml"; href="http://validator.w3.org/check/referer";>XHTML+RDFa 1.0</a></db:book>% Notice that the Saxon output contains an xmlns:xhtml declaration that is undesired and also useless. -- System Information: Debian Release: squeeze/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-trunk-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages libsaxon-java depends on: ii default-jre [java2-runtime] 1.6-34 Standard Java or Java compatible R ii gcj-4.4-jre [java2-runtime] 4.4.3-1 Java runtime environment using GIJ ii gcj-jre [java2-runtime] 4:4.4.2-3 Java runtime environment using GIJ ii openjdk-6-jre [java2-runtime] 6b17-1.7-1 OpenJDK Java runtime, using Hotspo libsaxon-java recommends no packages. Versions of packages libsaxon-java suggests: ii libjdom1-java 1.1.1+dfsg-1 lightweight and fast library using pn libsaxon-java-doc <none> (no description available) -- no debconf information -- brian m. carlson / brian with sandals: Houston, Texas, US +1 713 440 7475 | http://crustytoothpaste.ath.cx/~bmc | My opinion only OpenPGP: RSA v4 4096b 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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