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karnov / htmltoword

Ruby html to word gem
MIT License
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Does not work on JRuby: could not parse xslt stylesheet #33

Open sanelson2000 opened 9 years ago

sanelson2000 commented 9 years ago

Trying to use the htmltoword gem, v. 0.4.4, to generate a Word document from an HTML string on JRuby 1.7.21, Oracle JDK 1.8.0_45, and Nokogiri gem 1.6.6.2.

module Integrator
  module Export
    class Docx
      require 'htmltoword'

      def export
        Htmltoword::Document.create('<html><head></head><body><p>Hello</p></body></html>')
      end

    end
  end
end

It fails when trying to parse the XSLT stylesheet numbering.xslt, with the unhelpful error message

RuntimeError (could not parse xslt stylesheet):
  lib/integrator/export/docx.rb:7:in `export'

It is actually failing on the first line of Htmltoword::Document::transform_and_replace when trying to open the file with Nokogiri. When running on JRuby, Nokogiri uses Apache Xerces to parse XSL files rather than libxslt, and from what I understand, libxslt is more forgiving about bad stylesheets.

I'm lacking any good XSLT editors. I did try to run this in Eclipse and received the following error there:

Cannot convert data-type 'void' to 'reference'.
    at com.sun.org.apache.xalan.internal.xsltc.compiler.CastExpr.typeCheck(CastExpr.java:188)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.CastExpr.<init>(CastExpr.java:143)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.WithParam.typeCheck(WithParam.java:146)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.SyntaxTreeNode.typeCheckContents(SyntaxTreeNode.java:493)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.CallTemplate.typeCheck(CallTemplate.java:98)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.SyntaxTreeNode.typeCheckContents(SyntaxTreeNode.java:493)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.LiteralElement.typeCheck(LiteralElement.java:201)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.SyntaxTreeNode.typeCheckContents(SyntaxTreeNode.java:493)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.When.typeCheck(When.java:93)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.SyntaxTreeNode.typeCheckContents(SyntaxTreeNode.java:493)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.Instruction.typeCheck(Instruction.java:41)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.SyntaxTreeNode.typeCheckContents(SyntaxTreeNode.java:493)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.Template.typeCheck(Template.java:295)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.SyntaxTreeNode.typeCheckContents(SyntaxTreeNode.java:493)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.Stylesheet.typeCheck(Stylesheet.java:657)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.Parser.createAST(Parser.java:411)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.XSLTC.compile(XSLTC.java:486)
    at com.sun.org.apache.xalan.internal.xsltc.compiler.XSLTC.compile(XSLTC.java:571)
    at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:977)
    at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTransformer(TransformerFactoryImpl.java:791)
    at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTransformerHandler(TransformerFactoryImpl.java:1099)
    at org.eclipse.wst.xsl.jaxp.debug.invoker.internal.JAXPSAXProcessorInvoker.addStylesheet(JAXPSAXProcessorInvoker.java:137)
    at org.eclipse.wst.xsl.jaxp.debug.invoker.internal.JAXPSAXProcessorInvoker.addStylesheet(JAXPSAXProcessorInvoker.java:128)
    at org.eclipse.wst.xsl.jaxp.debug.invoker.PipelineDefinition.addStyleSheet(PipelineDefinition.java:161)
    at org.eclipse.wst.xsl.jaxp.debug.invoker.PipelineDefinition.configure(PipelineDefinition.java:152)
    at org.eclipse.wst.xsl.jaxp.debug.invoker.internal.Main.main(Main.java:72)
14:46:58,596 FATAL [main] Main  - Error with stylesheet: file:/Users/snelson/workspaces/xslt/numbering.xslt
org.eclipse.wst.xsl.jaxp.debug.invoker.internal.ConfigurationException: Error with stylesheet: file:/Users/snelson/workspaces/xslt/numbering.xslt
    at org.eclipse.wst.xsl.jaxp.debug.invoker.PipelineDefinition.addStyleSheet(PipelineDefinition.java:163)
    at org.eclipse.wst.xsl.jaxp.debug.invoker.PipelineDefinition.configure(PipelineDefinition.java:152)
    at org.eclipse.wst.xsl.jaxp.debug.invoker.internal.Main.main(Main.java:72)

But I'm still not sure exactly where the problem lies.

rafez commented 5 years ago

I do know it works with JRuby, as the project I used it on required Encrypted documents and password protection, something only possible with JRuby and POI, with this GEM doing the initial grunt work.