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 ExprResolveInteger(ExprDef * /* expr */ ,
 109                               ExprResult * /* val_rtrn */ ,
 110                               IdentLookupFunc /* lookup */ ,
 111                               char *  /* lookupPriv */
 112     );
 113
 114 extern int ExprResolveFloat(ExprDef * /* expr */ ,
 115                             ExprResult * /* val_rtrn */ ,
 116                             IdentLookupFunc /* lookup */ ,
 117                             char *    /* lookupPriv */
 118     );
 119
 120 extern int ExprResolveString(ExprDef * /* expr */ ,
 121                              ExprResult * /* val_rtrn */ ,
 122                              IdentLookupFunc /* lookup */ ,
 123                              char *   /* lookupPriv */
 124     );
 125
 126 extern int ExprResolveKeyName(ExprDef * /* expr */ ,
 127                               ExprResult * /* val_rtrn */ ,
 128                               IdentLookupFunc /* lookup */ ,
 129                               char *  /* lookupPriv */
 130     );
 131
 132 extern int ExprResolveEnum(ExprDef * /* expr */ ,
 133                            ExprResult * /* val_rtrn */ ,
 134                            LookupEntry *        /* values */
 135     );
 136
 137 extern int ExprResolveMask(ExprDef * /* expr */ ,
 138                            ExprResult * /* val_rtrn */ ,
 139                            IdentLookupFunc /* lookup */ ,
 140                            char *     /* lookupPriv */
 141     );
 142
 143 extern int ExprResolveKeySym(ExprDef * /* expr */ ,
 144                              ExprResult * /* val_rtrn */ ,
 145                              IdentLookupFunc /* lookup */ ,
 146                              char *   /* lookupPriv */
 147     );
 148
 149 #endif /* EXPR_H */