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-/*
- * Copyright © 2013 Ran Benita <ran234@gmail.com>
- *
- * 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 (including the next
- * paragraph) 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 COMPOSE_COMPOSE_H
-#define COMPOSE_COMPOSE_H
-
-#include "xkbcommon/xkbcommon-compose.h"
-#include "utils.h"
-#include "context.h"
-
-/*
- * The compose table data structure is a simple trie. An example will
- * help. Given these sequences:
- *
- * <A> <B> : "first" dead_a
- * <A> <C> <D> : "second" dead_b
- * <E> <F> : "third" dead_c
- *
- * the trie would look like:
- *
- * [root] ---> [<A>] -----------------> [<E>] -#
- * | | |
- * # v v
- * [<B>] ---> [<C>] -# [<F>] -#
- * | | -
- * # v #
- * [<D>] -#
- * |
- * #
- * where:
- * - [root] is a special empty root node.
- * - [<X>] is a node for a sequence keysym <X>.
- * - right arrows are `next` pointers.
- * - down arrows are `successor` pointers.
- * - # is a nil pointer.
- *
- * The nodes are all kept in a contiguous array. Pointers are represented
- * as integer offsets into this array. A nil pointer is represented as 0
- * (which, helpfully, is the offset of the empty root node).
- *
- * Nodes without a successor are leaf nodes. Since a sequence cannot be a
- * prefix of another, these are exactly the nodes which terminate the
- * sequences (in a bijective manner).
- *
- * A leaf contains the result data of its sequence. The result keysym is
- * contained in the node struct itself; the result UTF-8 string is a byte
- * offset into an array of the form "\0first\0second\0third" (the initial
- * \0 is so offset 0 points to an empty string).
- */
-
-struct compose_node {
- xkb_keysym_t keysym;
- /* Offset into xkb_compose_table::nodes. */
- unsigned int next:31;
- bool is_leaf:1;
-
- union {
- /* Offset into xkb_compose_table::nodes. */
- uint32_t successor;
- struct {
- /* Offset into xkb_compose_table::utf8. */
- uint32_t utf8;
- xkb_keysym_t keysym;
- } leaf;
- } u;
-};
-
-struct xkb_compose_table {
- int refcnt;
- enum xkb_compose_format format;
- enum xkb_compose_compile_flags flags;
- struct xkb_context *ctx;
-
- char *locale;
-
- darray_char utf8;
- darray(struct compose_node) nodes;
-};
-
-#endif