Initial copy of Scintilla 3.21 code

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72331 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/stc/scintilla/lexlib/LexerNoExceptions.cxx

@@ -0,0 +1,68 @@
+// Scintilla source code edit control
+/** @file LexerNoExceptions.cxx
+ ** A simple lexer with no state which does not throw exceptions so can be used in an external lexer.
+ **/
+// Copyright 1998-2010 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 "PropSetSimple.h"
+#include "WordList.h"
+#include "LexAccessor.h"
+#include "Accessor.h"
+#include "LexerModule.h"
+#include "LexerBase.h"
+#include "LexerNoExceptions.h"
+
+#ifdef SCI_NAMESPACE
+using namespace Scintilla;
+#endif
+
+int SCI_METHOD LexerNoExceptions::PropertySet(const char *key, const char *val) {
+	try {
+		return LexerBase::PropertySet(key, val);
+	} catch (...) {
+		// Should not throw into caller as may be compiled with different compiler or options
+	}
+	return -1;
+}
+
+int SCI_METHOD LexerNoExceptions::WordListSet(int n, const char *wl) {
+	try {
+		return LexerBase::WordListSet(n, wl);
+	} catch (...) {
+		// Should not throw into caller as may be compiled with different compiler or options
+	}
+	return -1;
+}
+
+void SCI_METHOD LexerNoExceptions::Lex(unsigned int startPos, int length, int initStyle, IDocument *pAccess) {
+	try {
+		Accessor astyler(pAccess, &props);
+		Lexer(startPos, length, initStyle, pAccess, astyler);
+		astyler.Flush();
+	} catch (...) {
+		// Should not throw into caller as may be compiled with different compiler or options
+		pAccess->SetErrorStatus(SC_STATUS_FAILURE);
+	}
+}
+void SCI_METHOD LexerNoExceptions::Fold(unsigned int startPos, int length, int initStyle, IDocument *pAccess) {
+	try {
+		Accessor astyler(pAccess, &props);
+		Folder(startPos, length, initStyle, pAccess, astyler);
+		astyler.Flush();
+	} catch (...) {
+		// Should not throw into caller as may be compiled with different compiler or options
+		pAccess->SetErrorStatus(SC_STATUS_FAILURE);
+	}
+}