Add private shared class ArgumentVector

The parser is based on the FS shell's ArgVector.

headers/private/shared/ArgumentVector.h

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2007-2012, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _ARGUMENT_VECTOR_H
+#define _ARGUMENT_VECTOR_H
+
+
+#include <SupportDefs.h>
+
+
+namespace BPrivate {
+
+
+class ArgumentVector {
+public:
+	enum ParseError {
+		NO_ERROR,
+		NO_MEMORY,
+		UNTERMINATED_QUOTED_STRING,
+		TRAILING_BACKSPACE
+	};
+
+public:
+								ArgumentVector();
+								~ArgumentVector();
+
+			int32				ArgumentCount() const	{ return fCount; }
+			const char* const*	Arguments() const		{ return fArguments; }
+
+			char**				DetachArguments();
+				// Caller must free() -- it's all one big allocation at the
+				// returned pointer.
+
+			ParseError			Parse(const char* commandLine,
+									const char** _errorLocation = NULL);
+
+private:
+			struct Parser;
+
+private:
+			char**				fArguments;
+			int32				fCount;
+};
+
+
+} // namespace BPrivate
+
+
+using BPrivate::ArgumentVector;
+
+
+#endif	// _ARGUMENT_VECTOR_H