From 78d3873061f1a974da4d0ccdcc1778c6a11139e8 Mon Sep 17 00:00:00 2001
From: Adrian Kummerländer
Date: Thu, 24 Apr 2014 22:18:45 +0200
Subject: Added XercesStringGuard scope-guard to manage XMLCh * xercesc
 requires XMLCh* strings to be hand-allocated and released using the XMLString
 class * XercesStringGuard works as a scope-guard for XMLCh* string lifetime
 and greatly simplifies xerces DOM construction

---
 src/support/xerces_string_guard.cc | 18 ++++++++++++++++++
 src/support/xerces_string_guard.h  | 24 ++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 src/support/xerces_string_guard.cc
 create mode 100644 src/support/xerces_string_guard.h

(limited to 'src/support')

diff --git a/src/support/xerces_string_guard.cc b/src/support/xerces_string_guard.cc
new file mode 100644
index 0000000..14ad29b
--- /dev/null
+++ b/src/support/xerces_string_guard.cc
@@ -0,0 +1,18 @@
+#include "xerces_string_guard.h"
+
+namespace InputXSLT {
+
+XercesStringGuard::XercesStringGuard(const std::string& src):
+	string_(xercesc::XMLString::transcode(src.data())) { }
+
+XercesStringGuard::~XercesStringGuard() {
+	xercesc::XMLString::release(
+		const_cast<XMLCh**>(&this->string_)
+	);
+}
+
+XMLCh* XercesStringGuard::operator*() {
+	return this->string_;
+}
+
+}
diff --git a/src/support/xerces_string_guard.h b/src/support/xerces_string_guard.h
new file mode 100644
index 0000000..f64a53e
--- /dev/null
+++ b/src/support/xerces_string_guard.h
@@ -0,0 +1,24 @@
+#ifndef INPUTXSLT_SRC_SUPPORT_XERCES_STRING_GUARD_H_
+#define INPUTXSLT_SRC_SUPPORT_XERCES_STRING_GUARD_H_
+
+#include <xercesc/util/XMLString.hpp>
+
+#include <string>
+
+namespace InputXSLT {
+
+class XercesStringGuard {
+	public:
+		XercesStringGuard(const std::string&);
+		~XercesStringGuard();
+
+		XMLCh* operator*();
+
+	private:
+		XMLCh* const string_;
+
+};
+
+}
+
+#endif  // INPUTXSLT_SRC_SUPPORT_XERCES_STRING_GUARD_H_
-- 
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