X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/c38e3ce98599a410a47dc10253faa4d5830f13b2..427c49bcad63d042b29ada2ac27e3dfc4845c779:/libsecurity_codesigning/antlr2/antlr/CharInputBuffer.hpp

diff --git a/libsecurity_codesigning/antlr2/antlr/CharInputBuffer.hpp b/libsecurity_codesigning/antlr2/antlr/CharInputBuffer.hpp
new file mode 100644
index 00000000..ac2da0cb
--- /dev/null
+++ b/libsecurity_codesigning/antlr2/antlr/CharInputBuffer.hpp
@@ -0,0 +1,77 @@
+#ifndef INC_CharInputBuffer_hpp__
+# define INC_CharInputBuffer_hpp__
+
+/* ANTLR Translator Generator
+ * Project led by Terence Parr at http://www.jGuru.com
+ * Software rights: http://www.antlr.org/license.html
+ *
+ * $Id:$
+ */
+
+# include <antlr/config.hpp>
+# include <antlr/InputBuffer.hpp>
+
+# ifdef HAS_NOT_CCTYPE_H
+#	include <ctype.h>
+# else
+#	include <cctype>
+# endif
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+namespace antlr {
+#endif
+
+/** CharInputBuffer.hpp provides an InputBuffer for plain character arrays (buffers).
+ */
+class CharInputBuffer : public InputBuffer
+{
+public:
+	/** Construct a CharInputBuffer.hpp object with a char* buffer of 'size'
+	 * if 'owner' is true, then the buffer will be delete[]-ed on destruction.
+	 * @note it is assumed the buffer was allocated with new[]!
+	 */
+	CharInputBuffer( unsigned char* buf, size_t size, bool owner = false )
+	: buffer(buf)
+	, ptr(buf)
+	, end(buf + size)
+	, delete_buffer(owner)
+	{
+	}
+
+	/** Destructor
+	 * @note If you're using malloced data, then you probably need to change
+	 * this destructor. Or better use this class as template for your own.
+	 */
+	~CharInputBuffer( void )
+	{
+		if( delete_buffer && buffer )
+			delete [] buffer;
+	}
+
+	/** Reset the CharInputBuffer to initial state
+	 * Called from LexerInputState::reset.
+	 * @see LexerInputState
+	 */
+	virtual inline void reset( void )
+	{
+		InputBuffer::reset();
+		ptr = buffer;
+	}
+
+	virtual int getChar( void )
+	{
+		return (ptr < end) ? *ptr++ : EOF;
+	}
+
+protected:
+	unsigned char* buffer;	///< the buffer with data
+	unsigned char* ptr;		///< position ptr into the buffer
+	unsigned char* end;		///< end sentry for buffer
+	bool delete_buffer;		///< flag signifying if we have to delete the buffer
+};
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+}
+#endif
+
+#endif