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                               IdentLookupFunc /* lookup */ ,
  99                               char *  /* priv */
 100     );
 101
 102 extern int ExprResolveVModMask(ExprDef * /* expr */ ,
 103                                ExprResult * /* val_rtrn */ ,
 104                                struct xkb_desc * /* xkb */
 105     );
 106
 107 extern int ExprResolveBoolean(ExprDef * /* expr */ ,
 108                               ExprResult * /* val_rtrn */ ,
 109                               IdentLookupFunc /* lookup */ ,
 110                               char *  /* lookupPriv */
 111     );
 112
 113 extern int ExprResolveKeyCode(ExprDef * /* expr */ ,
 114                               ExprResult * /* val_rtrn */
 115     );
 116
 117 extern int ExprResolveInteger(ExprDef * /* expr */ ,
 118                               ExprResult * /* val_rtrn */ ,
 119                               IdentLookupFunc /* lookup */ ,
 120                               char *  /* lookupPriv */
 121     );
 122
 123 extern int ExprResolveFloat(ExprDef * /* expr */ ,
 124                             ExprResult * /* val_rtrn */ ,
 125                             IdentLookupFunc /* lookup */ ,
 126                             char *    /* lookupPriv */
 127     );
 128
 129 extern int ExprResolveString(ExprDef * /* expr */ ,
 130                              ExprResult * /* val_rtrn */ ,
 131                              IdentLookupFunc /* lookup */ ,
 132                              char *   /* lookupPriv */
 133     );
 134
 135 extern int ExprResolveKeyName(ExprDef * /* expr */ ,
 136                               ExprResult * /* val_rtrn */ ,
 137                               IdentLookupFunc /* lookup */ ,
 138                               char *  /* lookupPriv */
 139     );
 140
 141 extern int ExprResolveEnum(ExprDef * /* expr */ ,
 142                            ExprResult * /* val_rtrn */ ,
 143                            LookupEntry *        /* values */
 144     );
 145
 146 extern int ExprResolveMask(ExprDef * /* expr */ ,
 147                            ExprResult * /* val_rtrn */ ,
 148                            IdentLookupFunc /* lookup */ ,
 149                            char *     /* lookupPriv */
 150     );
 151
 152 extern int ExprResolveKeySym(ExprDef * /* expr */ ,
 153                              ExprResult * /* val_rtrn */ ,
 154                              IdentLookupFunc /* lookup */ ,
 155                              char *   /* lookupPriv */
 156     );
 157
 158 #endif /* EXPR_H */