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diff --git a/src/output.hpp b/src/output.hpp
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+/*
+  Copyright (c) 2015, Matthias Schiffer <mschiffer@universe-factory.net>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#pragma once
+
+#include "generator.hpp"
+
+#include <cstdio>
+
+
+namespace solar {
+
+class output_t {
+private:
+	std::string prefix_str;
+	std::string token_prefix_str;
+	unsigned stack_size;
+
+	const generator_t *generator;
+
+	std::FILE *header_file;
+	std::FILE *source_file;
+
+	std::map<std::string, unsigned> tokens;
+	std::map<std::string, unsigned> nonterms;
+
+	const char * prefix() const {
+		return prefix_str.c_str();
+	}
+
+	const char * token_prefix() const {
+		return token_prefix_str.c_str();
+	}
+
+	void emit_tokens();
+	void emit_token_value();
+	void emit_header();
+
+	void emit_state_shift(unsigned i);
+	void emit_state_reduce(const item_t &item);
+	void emit_state(unsigned i);
+	void emit_states();
+	void emit_source();
+
+public:
+	output_t(const generator_t *generator0, const char *header, const char *source);
+
+	void write();
+};
+
+}