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-rw-r--r--src/function/read_directory.cc38
-rw-r--r--src/support/xerces_string_guard.cc18
-rw-r--r--src/support/xerces_string_guard.h24
3 files changed, 60 insertions, 20 deletions
diff --git a/src/function/read_directory.cc b/src/function/read_directory.cc
index 22653b6..245f311 100644
--- a/src/function/read_directory.cc
+++ b/src/function/read_directory.cc
@@ -6,6 +6,8 @@
#include <xercesc/dom/DOMText.hpp>
#include <xercesc/util/XMLString.hpp>
+#include "support/xerces_string_guard.h"
+
namespace InputXSLT {
FunctionReadDirectory::FunctionReadDirectory(const FilesystemContext& context):
@@ -34,31 +36,27 @@ xalan::XObjectPtr FunctionReadDirectory::execute(
this->fs_context_.iterate(
arguments[0]->str(),
[&domDocument, &rootNode](const boost::filesystem::path& p) {
- XMLCh* buffer = xercesc::XMLString::transcode("item");
- xercesc::DOMElement* const itemNode = domDocument->createElement(buffer);
- xercesc::XMLString::release(&buffer);
-
- buffer = xercesc::XMLString::transcode("type");
+ xercesc::DOMElement* const itemNode(
+ domDocument->createElement(*XercesStringGuard("item"))
+ );
if ( boost::filesystem::is_regular_file(p) ) {
- XMLCh* valueBuffer = xercesc::XMLString::transcode("file");
-
- itemNode->setAttribute(buffer, valueBuffer);
-
- xercesc::XMLString::release(&valueBuffer);
+ itemNode->setAttribute(
+ *XercesStringGuard("type"),
+ *XercesStringGuard("file")
+ );
} else if ( boost::filesystem::is_directory(p) ) {
- XMLCh* valueBuffer = xercesc::XMLString::transcode("directory");
-
- itemNode->setAttribute(buffer, valueBuffer);
-
- xercesc::XMLString::release(&valueBuffer);
+ itemNode->setAttribute(
+ *XercesStringGuard("type"),
+ *XercesStringGuard("directory")
+ );
}
- xercesc::XMLString::release(&buffer);
-
- buffer = xercesc::XMLString::transcode(p.filename().string().data());
- xercesc::DOMText* const textNode = domDocument->createTextNode(buffer);
- xercesc::XMLString::release(&buffer);
+ xercesc::DOMText* const textNode(
+ domDocument->createTextNode(
+ *XercesStringGuard(p.filename().string())
+ )
+ );
itemNode->appendChild(textNode);
rootNode->appendChild(itemNode);
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_