Hi! I tried investigate this bug and as far I can see problem in a different behavior of the function xmlNodeGetSpacePreserve from libxml2.
We can simplify the existing template to reproduce bug: <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform'> <xsl:template match="/root"> <test xml:space="preserve"><!-- !!! EXTRA WHITESPACES HERE !!! --> <xsl:attribute name="aaa">bbb</xsl:attribute> </test> </xsl:template> </xsl:stylesheet> With libxml2 >= 2.8.0 it's OK, but with version < 2.8.0 whitespaces are not removed and remains empty text element after which we can no longer use "xsl:attribute". Here is function from libxml2 2.9.0: int xmlNodeGetSpacePreserve(xmlNodePtr cur) { xmlChar *space; if ((cur == NULL) || (cur->type != XML_ELEMENT_NODE)) return(-1); while (cur != NULL) { space = xmlGetNsProp(cur, BAD_CAST "space", XML_XML_NAMESPACE); if (space != NULL) { if (xmlStrEqual(space, BAD_CAST "preserve")) { xmlFree(space); return(1); } if (xmlStrEqual(space, BAD_CAST "default")) { xmlFree(space); return(0); } xmlFree(space); } cur = cur->parent; } return(-1); } Here is function from libxml2 2.7.8: int xmlNodeGetSpacePreserve(xmlNodePtr cur) { xmlChar *space; while (cur != NULL) { space = xmlGetNsProp(cur, BAD_CAST "space", XML_XML_NAMESPACE); if (space != NULL) { if (xmlStrEqual(space, BAD_CAST "preserve")) { xmlFree(space); return(1); } if (xmlStrEqual(space, BAD_CAST "default")) { xmlFree(space); return(0); } xmlFree(space); } cur = cur->parent; } return(-1); } In this case, two lines play a crucial role here: if ((cur == NULL) || (cur->type != XML_ELEMENT_NODE)) return(-1); You can also try to change template and move 'xml:xpace="preserve"' after 'xsl:attribute' to resolve problem. -- Yuriy Ustushenko (YOREEK) Shlomi Fish < shlo...@shlomifish.org >: >Hi all, > >[I am posting this message in separate copies to both xml@gnome.org and > perl-...@listserv.activestate.com ]. > >after I added a test to the XML::LibXSLT test suite to check for the successful >run of a Perl XSLT stylesheet I wrote, I've been getting many CPAN Testers >Failures: > > http://matrix.cpantesters.org/?dist=XML-LibXSLT+1.87 > >While most Linux systems work fine, I've been getting many failures from BSD >systems. The longer story is that this test script was a port of part of a test >of a dependent CPAN package that's been getting testing failures after it was >attempted to be installed after a successful testing and installation of >XML::LibXSLT (whose test coverage was and probably still is incomplete). > >You can find the offending test here: > > https://bitbucket.org/shlomif/perl-xml-libxslt/src/8d9cfd4ce6381853c2c3c185842daa2f81107c79/t/xml-grammar-failures.t?at=default > >(just note it uses some external files specified in the $input_fn and $xslt_fn >variables). > >Now someone I talked with said that libxslt and/or libxml2 were incompatible >with clang/LLVM (and possibly other non-GCC compilers). If that's true, is it >a known issue? Is it ultimately a bug of clang/LLVM? Or alternatively, is it a >dependency on a non-standard GCCist behaviour in libxslt and libxml2? Is the >problem with the Perl bindings? > >Please enlighten me. > >Regards, > >Shlomi Fish > >-- >----------------------------------------------------------------- >Shlomi Fish http://www.shlomifish.org/ >Buffy Factoids - http://www.shlomifish.org/humour/bits/facts/Buffy/ > >I hope that if it had not been clear before, it isn’t less clear now. > — One of Shlomi Fish’s Technion Lecturers > >Please reply to list if it's a mailing list post - http://shlom.in/reply . >_______________________________________________ >xml mailing list, project page http://xmlsoft.org/ > xml@gnome.org > https://mail.gnome.org/mailman/listinfo/xml _______________________________________________ xml mailing list, project page http://xmlsoft.org/ xml@gnome.org https://mail.gnome.org/mailman/listinfo/xml
