1 files changed, 40 insertions, 0 deletions
diff --git a/lexers/LexNull.cxx b/lexers/LexNull.cxx
new file mode 100644
index 000000000..d5b3b3046
--- /dev/null
+++ b/lexers/LexNull.cxx
@@ -0,0 +1,40 @@
+// Scintilla source code edit control
+/** @file LexNull.cxx
+ ** Lexer for no language. Used for plain text and unrecognized files.
+ **/
+// Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include "ILexer.h"
+#include "Scintilla.h"
+#include "SciLexer.h"
+
+#include "WordList.h"
+#include "LexAccessor.h"
+#include "Accessor.h"
+#include "StyleContext.h"
+#include "CharacterSet.h"
+#include "LexerModule.h"
+
+#ifdef SCI_NAMESPACE
+using namespace Scintilla;
+#endif
+
+static void ColouriseNullDoc(unsigned int startPos, int length, int, WordList *[],
+                            Accessor &styler) {
+	// Null language means all style bytes are 0 so just mark the end - no need to fill in.
+	if (length > 0) {
+		styler.StartAt(startPos + length - 1);
+		styler.StartSegment(startPos + length - 1);
+		styler.ColourTo(startPos + length - 1, 0);
+	}
+}
+
+LexerModule lmNull(SCLEX_NULL, ColouriseNullDoc, "null");