Revamped implementation to support FunctionTransform XalanNode input

* FunctionTransform now accepts xalan::XalanNode base xalan::XSLTInputSource instances as input parameter
** such xalan::XSLTInputSource instances were already supported for the stylesheet parameter but not for the input parameter
** e.g. it is now possible to generate a DOM inside a transformation, pass the DOM into a embedded transformation as input, modifiy the output of that transformation, pass this modified DOM into another transformation and so on... you get the point
* this required a revamp of TransformationFacade
** it is now a transformation independent wrapper for xalan::XalanTransformer
*** as such is was renamed to TransformerFacade
** removed error catching template factory method "try_create" as it is not needed anymore
** "std::basic_ostream<char>&" taking "generate" member method overloads were removed
** the set of "generate" member overloads was reduced to two methods accepting xalan::XSLTInputSource and xalan::FormatterListener as parameters
* the core problem first documented in 299d0f6 was solved by transforming the input parameter into a xerces DOM and wrapping this DOM inside a xalan::XercesDOMWrapperParsedSource instance
* serialization of the transformation result for file / std::cout output is now performed directly by the ixslt frontend
* removed 'stylesheet parameter' parameter from FunctionTransform
** the functionality provided by this is easily replicated using the now possible DOM input parameter
** this was done to simplify the interface and reduce unnecessary feature duplication
* updated FunctionTransform test case accordingly
* added "generate" template function to ixslt frontend
** wraps TransformerFacade and manages ist input arguments
** handles serialization to stream
* this commit marks a important milestone towards the goals defined in 741a70f

3 files changed, 21 insertions, 18 deletions

diff --git a/test/transform/reference.xml b/test/transform/reference.xml
index e537bbc..1c702e8 100644
--- a/test/transform/reference.xml
+++ b/test/transform/reference.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <test_case>
-<input_tree>
+<input_entries>
 <entry>Hello 1</entry>
 <entry>Hello 2</entry>
 <entry>Hello 3</entry>
 <entry>Hello 4</entry>
-</input_tree>
+</input_entries>
 <parameter_value>42</parameter_value>
 </test_case>
diff --git a/test/transform/test.xsl b/test/transform/test.xsl
index 7469f92..a9f04a5 100644
--- a/test/transform/test.xsl
+++ b/test/transform/test.xsl
@@ -14,16 +14,14 @@
 	indent="yes"
 />
 
-<xsl:param name="parameters"/>
-
 <xsl:template match="test">
 <test_case>
 	<transform_test>
-		<input_tree>
-			<xsl:copy-of select="./entry"/>
-		</input_tree>
+		<input_entries>
+			<xsl:copy-of select="./entries/entry"/>
+		</input_entries>
 		<parameter_value>
-			<xsl:copy-of select="$parameters/test * 2"/>
+			<xsl:value-of select="./parameter/test * 2"/>
 		</parameter_value>
 	</transform_test>
 </test_case>
diff --git a/test/transform/transformation.xsl b/test/transform/transformation.xsl
index 686bbf5..1002540 100644
--- a/test/transform/transformation.xsl
+++ b/test/transform/transformation.xsl
@@ -23,12 +23,10 @@
 <xsl:template name="transformer">
 	<xsl:param name="input"/>
 	<xsl:param name="transformation"/>
-	<xsl:param name="parameters"/>
 
 	<xsl:copy-of select="InputXSLT:transform(
 		$input,
-		$transformation,
-		$parameters
+		$transformation
 	)"/>
 </xsl:template>
 
@@ -36,13 +34,11 @@
 	<xsl:param name="input"/>
 	<xsl:param name="transformation"/>
 	<xsl:param name="target"/>
-	<xsl:param name="parameters"/>
 
 	<xsl:variable name="transformerResult">
 		<xsl:call-template name="transformer">
-			<xsl:with-param name="input" select="string($input)"/>
+			<xsl:with-param name="input" select="$input"/>
 			<xsl:with-param name="transformation" select="string($transformation)"/>
-			<xsl:with-param name="parameters" select="xalan:nodeset($parameters)"/>
 		</xsl:call-template>
 	</xsl:variable>
 
@@ -62,12 +58,21 @@
 <xsl:template name="implementation">
 	<xsl:variable name="result">
 		<xsl:call-template name="generator">
-			<xsl:with-param name="input">[test.xml]</xsl:with-param>
+			<xsl:with-param name="input">
+				<test>
+					<entries>
+						<entry>Hello 1</entry>
+						<entry>Hello 2</entry>
+						<entry>Hello 3</entry>
+						<entry>Hello 4</entry>
+					</entries>
+					<parameter>
+						<test>21</test>
+					</parameter>
+				</test>
+			</xsl:with-param>
 			<xsl:with-param name="transformation">test.xsl</xsl:with-param>
 			<xsl:with-param name="target">test_actual.xml</xsl:with-param>
-			<xsl:with-param name="parameters">
-				<test>21</test>
-			</xsl:with-param>
 		</xsl:call-template>
 	</xsl:variable>