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 |
|
/** |
* @} |
*/ |