| 0,0 → 1,84 |
|---|
| /* |
| * Copyright (c) 2009 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 kbdgen generic |
| * @brief Generic scancode parser. |
| * @ingroup kbd |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #ifndef KBD_GSP_H_ |
| #define KBD_GSP_H_ |
| |
| #include <libadt/hash_table.h> |
| |
| enum { |
| GSP_END = -1, /**< Terminates a sequence. */ |
| GSP_DEFAULT = -2 /**< Wildcard, catches unhandled cases. */ |
| }; |
| |
| /** Scancode parser description */ |
| typedef struct { |
| /** Transition table, (state, input) -> (state, output) */ |
| hash_table_t trans; |
| |
| /** Number of states */ |
| int states; |
| } gsp_t; |
| |
| /** Scancode parser transition. */ |
| typedef struct { |
| link_t link; /**< Link to hash table in @c gsp_t */ |
| |
| /* Preconditions */ |
| |
| int old_state; /**< State before transition */ |
| int input; /**< Input symbol (scancode) */ |
| |
| /* Effects */ |
| |
| int new_state; /**< State after transition */ |
| |
| /* Output emitted during transition */ |
| |
| unsigned out_mods; /**< Modifier to emit */ |
| unsigned out_key; /**< Keycode to emit */ |
| } gsp_trans_t; |
| |
| extern void gsp_init(gsp_t *); |
| extern int gsp_insert_defs(gsp_t *, const int *); |
| extern int gsp_insert_seq(gsp_t *, const int *, unsigned, unsigned); |
| extern int gsp_step(gsp_t *, int, int, unsigned *, unsigned *); |
| |
| #endif |
| |
| /** |
| * @} |
| */ |