From 6dd832dd0adb35f63148a0e7bd5bdcfb28516c3b Mon Sep 17 00:00:00 2001
From: Adrian Kummerländer
Date: Fri, 18 Apr 2014 19:51:24 +0200
Subject: Implemented basic XML reading capabilities * command "read-xml-file"
 reads a XML file and allows it to be transformed by the calling XSLT * this
 will allow workflows like the following: ** a tranformation reads all the
 markdown files in a directory ** these markdown files are converted to a xml
 representation by a external function calling a appropriate C++ markdown
 parser ** the XML representation of each markdown file is converted to XHTML
 inside the XSL transformation ** ... and embedded into the output XHTML
 document ** => all inside a single XSL tranformation *** i.e. it is provided
 with only a empty dummy XML input file and fetches the actual input by itself
 * as all current code contained within this repository this is just a quick
 and dirty proof-of-concept and not in any way good code

---
 src/read_xml_file_command.h | 57 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 src/read_xml_file_command.h

(limited to 'src/read_xml_file_command.h')

diff --git a/src/read_xml_file_command.h b/src/read_xml_file_command.h
new file mode 100644
index 0000000..96b6c5d
--- /dev/null
+++ b/src/read_xml_file_command.h
@@ -0,0 +1,57 @@
+#include <xalanc/Include/PlatformDefinitions.hpp>
+#include <xercesc/util/PlatformUtils.hpp>
+#include <xalanc/XalanTransformer/XalanTransformer.hpp>
+#include <xalanc/XPath/XObjectFactory.hpp>
+#include <xalanc/XPath/Function.hpp>
+#include <xalanc/XPath/XObject.hpp>
+#include <xalanc/XercesParserLiaison/XercesParserLiaison.hpp>
+
+#include "utility.h"
+
+namespace xalan = xalanc_1_11;
+
+class FunctionReadXmlFile : public xalan::Function {
+	public:
+		virtual xalan::XObjectPtr execute(
+			xalan::XPathExecutionContext&      executionContext,
+			xalan::XalanNode*                  context,
+			const xalan::Function::XObjectArgVectorType& args,
+			const xalan::Locator*              locator
+		) const {
+			if ( args.size() != 1 ) {
+				xalan::XPathExecutionContext::GetAndReleaseCachedString guard(
+					executionContext
+				);
+
+				generalError(executionContext, context, locator);
+			}
+
+			if ( this->liaison == nullptr ) {
+				const_cast<FunctionReadXmlFile*>(this)->liaison = new xalan::XercesParserLiaison();
+			}
+
+			xalan::XSLTInputSource file(args[0]->str());
+
+			return executionContext.getXObjectFactory().createNodeSet(
+				liaison->parseXMLStream(file)
+			);
+		}
+
+		virtual FunctionReadXmlFile* clone(xalan::MemoryManager& manager) const {
+			return xalan::XalanCopyConstruct(manager, *this);
+		}
+
+	protected:
+		xalan::XercesParserLiaison* liaison = nullptr;
+
+		const xalan::XalanDOMString& getError(xalan::XalanDOMString& result) const {
+			result.assign("The read-file() function expects one argument.");
+
+			return result;
+		}
+
+	private:
+		FunctionReadXmlFile& operator=(const FunctionReadXmlFile&);
+		bool operator==(const FunctionReadXmlFile&) const;
+
+};
-- 
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