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diff --git a/src/libfsm/ragel.h b/src/libfsm/ragel.h
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+/*
+ * Copyright 2001-2018 Adrian Thurston <thurston@colm.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _RAGEL_H
+#define _RAGEL_H
+
+#include <stdio.h>
+#include <iostream>
+#include <fstream>
+#include <string>
+#include "vector.h"
+#include "config.h"
+#include "common.h"
+
+#define PROGNAME "ragel"
+
+#define MAIN_MACHINE "main"
+
+/* Target output style. */
+enum CodeStyle
+{
+	GenBinaryLoop,
+	GenBinaryExp,
+	GenFlatLoop,
+	GenFlatExp,
+	GenGotoLoop,
+	GenGotoExp,
+	GenSwitchLoop,
+	GenSwitchExp,
+	GenIpGoto
+};
+
+/* To what degree are machine minimized. */
+enum MinimizeLevel {
+	#ifdef TO_UPGRADE_CONDS
+	MinimizeApprox,
+	#endif
+	#ifdef TO_UPGRADE_CONDS
+	MinimizeStable,
+	#endif
+	MinimizePartition1,
+	MinimizePartition2
+};
+
+enum MinimizeOpt {
+	MinimizeNone,
+	MinimizeEnd,
+	MinimizeMostOps,
+	MinimizeEveryOp
+};
+
+/* Target implementation */
+enum RubyImplEnum
+{
+	MRI,
+	Rubinius
+};
+
+/* Error reporting format. */
+enum ErrorFormat {
+	ErrorFormatGNU,
+	ErrorFormatMSVC,
+};
+
+extern ErrorFormat errorFormat;
+
+
+struct colm_location;
+
+InputLoc makeInputLoc( const char *fileName, int line = 0, int col = 0 );
+InputLoc makeInputLoc( const struct colm_location *loc );
+std::ostream &operator<<( std::ostream &out, const InputLoc &loc );
+
+void xmlEscapeHost( std::ostream &out, const char *data, long len );
+
+
+using std::endl;
+
+extern const char mainMachine[];
+
+struct AbortCompile
+{
+	AbortCompile( int code )
+		: code(code) {}
+
+	int code;
+};
+
+#endif