Activated namespace comprehension for all `XercesDOMParser` instances

* this is possibly a breaking change for all applications built on either `FunctionExternalCommand` or `FunctionReadFile`
** e.g. meta datasource XPath queries in _StaticXSLT_ will have to be changed to accomodate this
* the reason for doing this was to fix the behaviour when reading namespaced XML files
** e.g. XSL stylesheets could only be queried with a clunky XPath expression such as `$transformation/self::*[name() = 'xsl:stylesheet']` instead of simply `$transformation/self::xsl:stylesheet`
*** this was caused by the now activated namespace comprehension in `xercesc::XercesDOMParser` which is disabled by default
*** it caused all local node names to be converted into their namespace prefixed version, e.g. `local-name()` returned `xsl:stylesheet` instead of `stylesheet`

1 files changed, 1 insertions, 0 deletions

diff --git a/src/function/read_file.cc b/src/function/read_file.cc
index fe9eea5..bbc8315 100644
--- a/src/function/read_file.cc
+++ b/src/function/read_file.cc
@@ -25,6 +25,7 @@ boost::optional<xercesc::DOMNode*> readXmlFile(
 	);
 
 	xercesc::XercesDOMParser parser;
+	parser.setDoNamespaces(true);
 	parser.parse(file);
 
 	if ( parser.getErrorCount() == 0 ) {