1 files changed, 48 insertions, 0 deletions
diff --git a/src/io.h b/src/io.h
new file mode 100644
index 0000000..b03315a
--- /dev/null
+++ b/src/io.h
@@ -0,0 +1,48 @@
+/* geml - General extendable macro language
+ *   io.h Hadndles input and output for parser
+ *
+ * Copyright (C) 2016 Karel Kočí
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <string.h>
+
+#ifndef _IO_H_
+#define _IO_H_
+#include "utils.h"
+
+// Call this function as soon as possible after program start before outf  or inf
+// are used.
+void io_init(void);
+
+// Current output file is closed and opens specified file. When NULL is passed,
+// current file is closed and stdout is used.
+bool set_output(const char *file) __attribute__ ((nonnull));
+
+extern FILE *outf;
+extern const char *outf_name;
+
+// Curent input file is closed and opens specified file. When NULL is passed,
+// current file is closed and stdin is used.
+bool set_input(const char *file) __attribute__ ((nonnull));
+
+extern FILE *inf;
+extern const char *inf_name;
+
+#endif /* _IO_H_ */