LXR linux-old/scripts/tkparse.h

   1/*
   2 * tkparse.h
   3 */
   4
   5/*
   6 * Token types (mostly statement types).
   7 */
   8
   9enum e_token
  10{
  11    token_UNKNOWN,
  12    token_bool, 
  13    token_choice_header,
  14    token_choice_item,
  15    token_comment, 
  16    token_define_bool,
  17    token_define_hex,
  18    token_define_int,
  19    token_define_string,
  20    token_define_tristate,
  21    token_dep_bool,
  22    token_dep_mbool,
  23    token_dep_tristate,
  24    token_else, 
  25    token_endmenu,
  26    token_fi, 
  27    token_hex,
  28    token_if, 
  29    token_int,
  30    token_mainmenu_name, 
  31    token_mainmenu_option, 
  32    token_source,
  33    token_string,
  34    token_then,
  35    token_tristate, 
  36    token_unset,
  37};
  38
  39/*
  40 * Operator types for conditionals.
  41 */
  42
  43enum operator
  44{
  45    op_eq,
  46    op_neq,
  47    op_and,
  48    op_and1,
  49    op_or,
  50    op_bang,
  51    op_lparen,
  52    op_rparen,
  53    op_constant,
  54    op_variable,
  55    op_true,
  56    op_false,
  57    op_nuked
  58};
  59
  60/*
  61 * Conditions come in linked lists.
  62 * Some operators take strings:
  63 *
  64 *   op_constant   "foo"
  65 *   op_variable   "$ARCH", "$CONFIG_PMAC", "$CONFIG_EXPERIMENTAL"
  66 *
  67 * Most "$..." constructs refer to a variable which is defined somewhere
  68 * in the script.  Note that it is legal to test variables which are never
  69 * defined, such as variables that are meaningful only on other architectures.
  70 */
  71
  72struct condition
  73{
  74    struct condition *  next;
  75    enum operator       op;
  76    const char *        str;            /* op_constant */
  77    int                 nameindex;      /* op_variable */
  78};
  79
  80/*
  81 * Dependency list for dep_bool, dep_mbool, dep_tristate
  82 */
  83
  84struct dependency
  85{
  86    char *              name;
  87    struct dependency * next;
  88};
  89
  90/*
  91 * A statement from a config.in file
  92 */
  93
  94struct kconfig
  95{
  96    struct kconfig *    next;
  97    enum e_token        token;
  98    int                 nameindex;
  99    char *              label;
 100    char *              value;
 101    struct condition *  cond;
 102    struct dependency * depend;         /* token_dep_tristate */
 103    struct kconfig *    cfg_parent;     /* token_choice_item */
 104
 105    /* used only in tkgen.c */
 106    int                 menu_number;
 107    int                 menu_line;
 108    struct kconfig *    menu_next;
 109};
 110
 111struct variable
 112{
 113    char *      name;
 114    char        defined;
 115    char        global_written;
 116};
 117
 118extern struct variable *vartable;
 119extern int max_varnum;
 120
 121/*
 122 * Prototypes
 123 */
 124
 125extern void fix_conditionals ( struct kconfig * scfg );         /* tkcond.c */
 126extern void dump_tk_script   ( struct kconfig * scfg );         /* tkgen.c  */
 127extern int get_varnum        ( char * name );                   /* tkparse.c */
 128