2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
26 #define FILE_BUSY 0x0001
27 #define FILE_SCANNED 0x0002
29 typedef enum tristate {
34 E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_CHOICE, E_SYMBOL, E_RANGE
44 union expr_data left, right;
47 #define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
48 #define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
49 #define EXPR_NOT(dep) (2-(dep))
62 S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
66 S_DEF_USER, /* main user value */
73 enum symbol_type type;
74 struct symbol_value curr;
75 struct symbol_value def[4];
78 struct property *prop;
79 struct expr_value rev_dep;
82 #define for_all_symbols(i, sym) for (i = 0; i < 257; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)
84 #define SYMBOL_CONST 0x0001
85 #define SYMBOL_CHECK 0x0008
86 #define SYMBOL_CHOICE 0x0010
87 #define SYMBOL_CHOICEVAL 0x0020
88 #define SYMBOL_VALID 0x0080
89 #define SYMBOL_OPTIONAL 0x0100
90 #define SYMBOL_WRITE 0x0200
91 #define SYMBOL_CHANGED 0x0400
92 #define SYMBOL_AUTO 0x1000
93 #define SYMBOL_CHECKED 0x2000
94 #define SYMBOL_WARNED 0x8000
95 #define SYMBOL_DEF 0x10000
96 #define SYMBOL_DEF_USER 0x10000
97 #define SYMBOL_DEF_AUTO 0x20000
98 #define SYMBOL_DEF3 0x40000
99 #define SYMBOL_DEF4 0x80000
101 #define SYMBOL_MAXLENGTH 256
102 #define SYMBOL_HASHSIZE 257
103 #define SYMBOL_HASHMASK 0xff
106 P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE, P_SELECT, P_RANGE
110 struct property *next;
114 struct expr_value visible;
121 #define for_all_properties(sym, st, tok) \
122 for (st = sym->prop; st; st = st->next) \
123 if (st->type == (tok))
124 #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
125 #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
126 #define for_all_prompts(sym, st) \
127 for (st = sym->prop; st; st = st->next) \
135 struct property *prompt;
144 #define MENU_CHANGED 0x0001
145 #define MENU_ROOT 0x0002
149 extern struct file *file_list;
150 extern struct file *current_file;
151 struct file *lookup_file(const char *name);
153 extern struct symbol symbol_yes, symbol_no, symbol_mod;
154 extern struct symbol *modules_sym;
155 extern struct symbol *sym_defconfig_list;
157 struct expr *expr_alloc_symbol(struct symbol *sym);
158 struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
159 struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
160 struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
161 struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
162 struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
163 struct expr *expr_copy(struct expr *org);
164 void expr_free(struct expr *e);
165 int expr_eq(struct expr *e1, struct expr *e2);
166 void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
167 tristate expr_calc_value(struct expr *e);
168 struct expr *expr_eliminate_yn(struct expr *e);
169 struct expr *expr_trans_bool(struct expr *e);
170 struct expr *expr_eliminate_dups(struct expr *e);
171 struct expr *expr_transform(struct expr *e);
172 int expr_contains_symbol(struct expr *dep, struct symbol *sym);
173 bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
174 struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
175 struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
176 void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
177 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
179 void expr_fprint(struct expr *e, FILE *out);
180 struct gstr; /* forward */
181 void expr_gstr_print(struct expr *e, struct gstr *gs);
183 static inline int expr_is_yes(struct expr *e)
185 return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
188 static inline int expr_is_no(struct expr *e)
190 return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);