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
28 #define FILE_PRINTED 0x0004
30 typedef enum tristate {
35 E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_CHOICE, E_SYMBOL, E_RANGE
45 union expr_data left, right;
48 #define E_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
49 #define E_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
50 #define E_NOT(dep) (2-(dep))
63 S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
67 S_DEF_USER, /* main user value */
74 enum symbol_type type;
75 struct symbol_value curr;
76 struct symbol_value def[4];
79 struct property *prop;
80 struct expr *dep, *dep2;
81 struct expr_value rev_dep;
84 #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)
86 #define SYMBOL_CONST 0x0001
87 #define SYMBOL_CHECK 0x0008
88 #define SYMBOL_CHOICE 0x0010
89 #define SYMBOL_CHOICEVAL 0x0020
90 #define SYMBOL_PRINTED 0x0040
91 #define SYMBOL_VALID 0x0080
92 #define SYMBOL_OPTIONAL 0x0100
93 #define SYMBOL_WRITE 0x0200
94 #define SYMBOL_CHANGED 0x0400
95 #define SYMBOL_AUTO 0x1000
96 #define SYMBOL_CHECKED 0x2000
97 #define SYMBOL_WARNED 0x8000
98 #define SYMBOL_DEF 0x10000
99 #define SYMBOL_DEF_USER 0x10000
100 #define SYMBOL_DEF_AUTO 0x20000
101 #define SYMBOL_DEF3 0x40000
102 #define SYMBOL_DEF4 0x80000
104 #define SYMBOL_MAXLENGTH 256
105 #define SYMBOL_HASHSIZE 257
106 #define SYMBOL_HASHMASK 0xff
109 P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE, P_SELECT, P_RANGE
113 struct property *next;
117 struct expr_value visible;
124 #define for_all_properties(sym, st, tok) \
125 for (st = sym->prop; st; st = st->next) \
126 if (st->type == (tok))
127 #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
128 #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
129 #define for_all_prompts(sym, st) \
130 for (st = sym->prop; st; st = st->next) \
138 struct property *prompt;
147 #define MENU_CHANGED 0x0001
148 #define MENU_ROOT 0x0002
152 extern struct file *file_list;
153 extern struct file *current_file;
154 struct file *lookup_file(const char *name);
156 extern struct symbol symbol_yes, symbol_no, symbol_mod;
157 extern struct symbol *modules_sym;
158 extern struct symbol *sym_defconfig_list;
160 struct expr *expr_alloc_symbol(struct symbol *sym);
161 struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
162 struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
163 struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
164 struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
165 struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
166 struct expr *expr_copy(struct expr *org);
167 void expr_free(struct expr *e);
168 int expr_eq(struct expr *e1, struct expr *e2);
169 void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
170 tristate expr_calc_value(struct expr *e);
171 struct expr *expr_eliminate_yn(struct expr *e);
172 struct expr *expr_trans_bool(struct expr *e);
173 struct expr *expr_eliminate_dups(struct expr *e);
174 struct expr *expr_transform(struct expr *e);
175 int expr_contains_symbol(struct expr *dep, struct symbol *sym);
176 bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
177 struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
178 struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
179 void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
180 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
182 void expr_fprint(struct expr *e, FILE *out);
183 struct gstr; /* forward */
184 void expr_gstr_print(struct expr *e, struct gstr *gs);
186 static inline int expr_is_yes(struct expr *e)
188 return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
191 static inline int expr_is_no(struct expr *e)
193 return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);