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