Index: uspace/lib/c/include/io/table.h
===================================================================
--- uspace/lib/c/include/io/table.h	(revision 75c383031764d7fca6456989fdd52eef0dc4ecb1)
+++ uspace/lib/c/include/io/table.h	(revision 75c383031764d7fca6456989fdd52eef0dc4ecb1)
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2017 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - 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.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/** @addtogroup libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef LIBC_IO_TABLE_H_
+#define LIBC_IO_TABLE_H_
+
+#include <adt/list.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+
+/** Table metrics */
+typedef struct {
+	/** Space to the left of the table */
+	size_t margin_left;
+} table_metrics_t;
+
+/** Table cell */
+typedef struct {
+	/** Containing row */
+	struct table_row *row;
+	/** Link to table_row_t.cells */
+	link_t lrow;
+	/** Cell text */
+	char *text;
+} table_cell_t;
+
+/** Table row */
+typedef struct table_row {
+	/** Containing table */
+	struct table *table;
+	/** Link to table_t.rows */
+	link_t ltable;
+	/** Cells of this row */
+	list_t cells;
+} table_row_t;
+
+/** Table column */
+typedef struct {
+	/** Containing table */
+	struct table *table;
+	/** Link to table_t.columns */
+	link_t ltable;
+	/** Column width */
+	size_t width;
+} table_column_t;
+
+/** Table */
+typedef struct table {
+	/** @c true if the first row is a header row */
+	bool header_row;
+	/** Encountered error while writing to table */
+	int error;
+	/** Table rows */
+	list_t rows; /* of table_row_t */
+	/** Table columns */
+	list_t columns; /* of table_column_t */
+	/** Current row */
+	table_row_t *wrow;
+	/** Current cell */
+	table_cell_t *wcell;
+	/** Current column */
+	table_column_t *wcolumn;
+	/** Table metrics */
+	table_metrics_t metrics;
+} table_t;
+
+extern int table_create(table_t **);
+extern void table_destroy(table_t *);
+extern int table_print_out(table_t *, FILE *);
+extern void table_header_row(table_t *);
+extern int table_printf(table_t *, const char *, ...);
+extern int table_get_error(table_t *);
+extern void table_set_margin_left(table_t *, size_t);
+
+#endif
+
+/** @}
+ */