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,
  21  DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  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     );
  99
 100 extern int ExprResolveVModMask(ExprDef * /* expr */ ,
 101                                ExprResult * /* val_rtrn */ ,
 102                                struct xkb_desc * /* xkb */
 103     );
 104
 105 extern int ExprResolveBoolean(ExprDef * /* expr */ ,
 106                               ExprResult * /* val_rtrn */
 107     );
 108
 109 extern int ExprResolveKeyCode(ExprDef * /* expr */ ,
 110                               ExprResult * /* val_rtrn */
 111     );
 112
 113 extern int ExprResolveInteger(ExprDef * /* expr */ ,
 114                               ExprResult * /* val_rtrn */ ,
 115                               IdentLookupFunc /* lookup */ ,
 116                               char *  /* lookupPriv */
 117     );
 118
 119 extern int ExprResolveFloat(ExprDef * /* expr */ ,
 120                             ExprResult * /* val_rtrn */
 121     );
 122
 123 extern int ExprResolveString(ExprDef * /* expr */ ,
 124                              ExprResult * /* val_rtrn */
 125     );
 126
 127 extern int ExprResolveKeyName(ExprDef * /* expr */ ,
 128                               ExprResult * /* val_rtrn */
 129     );
 130
 131 extern int ExprResolveEnum(ExprDef * /* expr */ ,
 132                            ExprResult * /* val_rtrn */ ,
 133                            LookupEntry *        /* values */
 134     );
 135
 136 extern int ExprResolveMask(ExprDef * /* expr */ ,
 137                            ExprResult * /* val_rtrn */ ,
 138                            IdentLookupFunc /* lookup */ ,
 139                            char *     /* lookupPriv */
 140     );
 141
 142 extern int ExprResolveKeySym(ExprDef * /* expr */ ,
 143                              ExprResult * /* val_rtrn */
 144     );
 145
 146 #endif /* EXPR_H */