2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
19 enum { true=1, false=0};
31 #define FILE_BUSY 0x0001
32 #define FILE_SCANNED 0x0002
34 typedef enum tristate {
39 E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE
49 union expr_data left, right;
52 #define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
53 #define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
54 #define EXPR_NOT(dep) (2-(dep))
56 #define expr_list_for_each_sym(l, e, s) \
57 for (e = (l); e && (s = e->right.sym); e = e->left.expr)
70 S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
74 S_DEF_USER, /* main user value */
81 enum symbol_type type;
82 struct symbol_value curr;
83 struct symbol_value def[4];
86 struct property *prop;
87 struct expr_value rev_dep;
90 #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)
92 #define SYMBOL_CONST 0x0001
93 #define SYMBOL_CHECK 0x0008
94 #define SYMBOL_CHOICE 0x0010
95 #define SYMBOL_CHOICEVAL 0x0020
96 #define SYMBOL_VALID 0x0080
97 #define SYMBOL_OPTIONAL 0x0100
98 #define SYMBOL_WRITE 0x0200
99 #define SYMBOL_CHANGED 0x0400
100 #define SYMBOL_AUTO 0x1000
101 #define SYMBOL_CHECKED 0x2000
102 #define SYMBOL_WARNED 0x8000
103 #define SYMBOL_DEF 0x10000
104 #define SYMBOL_DEF_USER 0x10000
105 #define SYMBOL_DEF_AUTO 0x20000
106 #define SYMBOL_DEF3 0x40000
107 #define SYMBOL_DEF4 0x80000
109 #define SYMBOL_MAXLENGTH 256
110 #define SYMBOL_HASHSIZE 257
111 #define SYMBOL_HASHMASK 0xff
114 P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE,
115 P_SELECT, P_RANGE, P_ENV
119 struct property *next;
123 struct expr_value visible;
130 #define for_all_properties(sym, st, tok) \
131 for (st = sym->prop; st; st = st->next) \
132 if (st->type == (tok))
133 #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
134 #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
135 #define for_all_prompts(sym, st) \
136 for (st = sym->prop; st; st = st->next) \
144 struct property *prompt;
153 #define MENU_CHANGED 0x0001
154 #define MENU_ROOT 0x0002
158 extern struct file *file_list;
159 extern struct file *current_file;
160 struct file *lookup_file(const char *name);
162 extern struct symbol symbol_yes, symbol_no, symbol_mod;
163 extern struct symbol *modules_sym;
164 extern struct symbol *sym_defconfig_list;
166 struct expr *expr_alloc_symbol(struct symbol *sym);
167 struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
168 struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
169 struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
170 struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
171 struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
172 struct expr *expr_copy(struct expr *org);
173 void expr_free(struct expr *e);
174 int expr_eq(struct expr *e1, struct expr *e2);
175 void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
176 tristate expr_calc_value(struct expr *e);
177 struct expr *expr_eliminate_yn(struct expr *e);
178 struct expr *expr_trans_bool(struct expr *e);
179 struct expr *expr_eliminate_dups(struct expr *e);
180 struct expr *expr_transform(struct expr *e);
181 int expr_contains_symbol(struct expr *dep, struct symbol *sym);
182 bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
183 struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
184 struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
185 void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
186 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
188 void expr_fprint(struct expr *e, FILE *out);
189 struct gstr; /* forward */
190 void expr_gstr_print(struct expr *e, struct gstr *gs);
192 static inline int expr_is_yes(struct expr *e)
194 return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
197 static inline int expr_is_no(struct expr *e)
199 return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);