src/xkbcomp/expr.h

   1 /************************************************************
   2  Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
   3
   4  Permission to use, copy, modify, and distribute this
   5  software and its documentation for any purpose and without
   6  fee is hereby granted, provided that the above copyright
   7  notice appear in all copies and that both that copyright
   8  notice and this permission notice appear in supporting
   9  documentation, and that the name of Silicon Graphics not be
  10  used in advertising or publicity pertaining to distribution
  11  of the software without specific prior written permission.
  12  Silicon Graphics makes no representation about the suitability
  13  of this software for any purpose. It is provided "as is"
  14  without any express or implied warranty.
  15
  16  SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  17  SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  18  AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
  19  GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
  20  DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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  22  OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
  23  THE USE OR PERFORMANCE OF THIS SOFTWARE.
  24
  25  ********************************************************/
  26
  27 #ifndef EXPR_H
  28 #define EXPR_H 1
  29
  30 typedef union _ExprResult
  31 {
  32     char *str;
  33     int ival;
  34     unsigned uval;
  35     struct xkb_key_name keyName;
  36 } ExprResult;
  37
  38 typedef Bool(*IdentLookupFunc) (char * /* priv */ ,
  39                                 uint32_t /* elem */ ,
  40                                 uint32_t /* field */ ,
  41                                 unsigned /* type */ ,
  42                                 ExprResult *    /* val_rtrn */
  43     );
  44
  45 extern int ExprResolveLhs(ExprDef * /* expr */ ,
  46                           ExprResult * /* elem_rtrn */ ,
  47                           ExprResult * /* field_rtrn */ ,
  48                           ExprDef **    /* index_rtrn */
  49     );
  50
  51 typedef struct _LookupPriv
  52 {
  53     char * priv;
  54     IdentLookupFunc chain;
  55     char * chainPriv;
  56 } LookupPriv;
  57
  58 typedef struct _LookupEntry
  59 {
  60     const char *name;
  61     unsigned result;
  62 } LookupEntry;
  63
  64 typedef struct _LookupTable
  65 {
  66     char *element;
  67     LookupEntry *entries;
  68     struct _LookupTable *nextElement;
  69 } LookupTable;
  70
  71
  72 extern char *exprOpText(unsigned        /* type */
  73     );
  74
  75 extern int RadioLookup(char * /* priv */ ,
  76                        uint32_t /* elem */ ,
  77                        uint32_t /* field */ ,
  78                        unsigned /* type */ ,
  79                        ExprResult *     /* val_rtrn */
  80     );
  81
  82 extern int SimpleLookup(char * /* priv */ ,
  83                         uint32_t /* elem */ ,
  84                         uint32_t /* field */ ,
  85                         unsigned /* type */ ,
  86                         ExprResult *    /* val_rtrn */
  87     );
  88
  89 extern int LookupModIndex(char * /* priv */ ,
  90                           uint32_t /* elem */ ,
  91                           uint32_t /* field */ ,
  92                           unsigned /* type */ ,
  93                           ExprResult *  /* val_rtrn */
  94     );
  95
  96 extern int ExprResolveModMask(ExprDef * /* expr */ ,
  97                               ExprResult * /* val_rtrn */ ,
  98                               IdentLookupFunc /* lookup */ ,
  99                               char *  /* priv */
 100     );
 101
 102 extern int ExprResolveBoolean(ExprDef * /* expr */ ,
 103                               ExprResult * /* val_rtrn */ ,
 104                               IdentLookupFunc /* lookup */ ,
 105                               char *  /* lookupPriv */
 106     );
 107
 108 extern int ExprResolveKeyCode(ExprDef * /* expr */ ,
 109                               ExprResult * /* val_rtrn */
 110     );
 111
 112 extern int ExprResolveInteger(ExprDef * /* expr */ ,
 113                               ExprResult * /* val_rtrn */ ,
 114                               IdentLookupFunc /* lookup */ ,
 115                               char *  /* lookupPriv */
 116     );
 117
 118 extern int ExprResolveFloat(ExprDef * /* expr */ ,
 119                             ExprResult * /* val_rtrn */ ,
 120                             IdentLookupFunc /* lookup */ ,
 121                             char *    /* lookupPriv */
 122     );
 123
 124 extern int ExprResolveString(ExprDef * /* expr */ ,
 125                              ExprResult * /* val_rtrn */ ,
 126                              IdentLookupFunc /* lookup */ ,
 127                              char *   /* lookupPriv */
 128     );
 129
 130 extern int ExprResolveKeyName(ExprDef * /* expr */ ,
 131                               ExprResult * /* val_rtrn */ ,
 132                               IdentLookupFunc /* lookup */ ,
 133                               char *  /* lookupPriv */
 134     );
 135
 136 extern int ExprResolveEnum(ExprDef * /* expr */ ,
 137                            ExprResult * /* val_rtrn */ ,
 138                            LookupEntry *        /* values */
 139     );
 140
 141 extern int ExprResolveMask(ExprDef * /* expr */ ,
 142                            ExprResult * /* val_rtrn */ ,
 143                            IdentLookupFunc /* lookup */ ,
 144                            char *     /* lookupPriv */
 145     );
 146
 147 extern int ExprResolveKeySym(ExprDef * /* expr */ ,
 148                              ExprResult * /* val_rtrn */ ,
 149                              IdentLookupFunc /* lookup */ ,
 150                              char *   /* lookupPriv */
 151     );
 152
 153 #endif /* EXPR_H */