+++ /dev/null
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- * Released under the terms of the GNU GPL v2.0.
- */
-
-#ifndef EXPR_H
-#define EXPR_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdio.h>
-#ifndef __cplusplus
-#include <stdbool.h>
-#endif
-
-struct file {
- struct file *next;
- struct file *parent;
- char *name;
- int lineno;
- int flags;
-};
-
-#define FILE_BUSY 0x0001
-#define FILE_SCANNED 0x0002
-#define FILE_PRINTED 0x0004
-
-typedef enum tristate {
- no, mod, yes
-} tristate;
-
-enum expr_type {
- E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_CHOICE, E_SYMBOL, E_RANGE
-};
-
-union expr_data {
- struct expr *expr;
- struct symbol *sym;
-};
-
-struct expr {
- enum expr_type type;
- union expr_data left, right;
-};
-
-#define E_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
-#define E_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
-#define E_NOT(dep) (2-(dep))
-
-struct expr_value {
- struct expr *expr;
- tristate tri;
-};
-
-struct symbol_value {
- void *val;
- tristate tri;
-};
-
-enum symbol_type {
- S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
-};
-
-struct symbol {
- struct symbol *next;
- char *name;
- char *help;
- enum symbol_type type;
- struct symbol_value curr, user;
- tristate visible;
- int flags;
- struct property *prop;
- struct expr *dep, *dep2;
- struct expr_value rev_dep;
-};
-
-#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)
-
-#define SYMBOL_YES 0x0001
-#define SYMBOL_MOD 0x0002
-#define SYMBOL_NO 0x0004
-#define SYMBOL_CONST 0x0007
-#define SYMBOL_CHECK 0x0008
-#define SYMBOL_CHOICE 0x0010
-#define SYMBOL_CHOICEVAL 0x0020
-#define SYMBOL_PRINTED 0x0040
-#define SYMBOL_VALID 0x0080
-#define SYMBOL_OPTIONAL 0x0100
-#define SYMBOL_WRITE 0x0200
-#define SYMBOL_CHANGED 0x0400
-#define SYMBOL_NEW 0x0800
-#define SYMBOL_AUTO 0x1000
-#define SYMBOL_CHECKED 0x2000
-#define SYMBOL_CHECK_DONE 0x4000
-#define SYMBOL_WARNED 0x8000
-
-#define SYMBOL_MAXLENGTH 256
-#define SYMBOL_HASHSIZE 257
-#define SYMBOL_HASHMASK 0xff
-
-enum prop_type {
- P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE, P_SELECT, P_RANGE
-};
-
-struct property {
- struct property *next;
- struct symbol *sym;
- enum prop_type type;
- const char *text;
- struct expr_value visible;
- struct expr *expr;
- struct menu *menu;
- struct file *file;
- int lineno;
-};
-
-#define for_all_properties(sym, st, tok) \
- for (st = sym->prop; st; st = st->next) \
- if (st->type == (tok))
-#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
-#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
-#define for_all_prompts(sym, st) \
- for (st = sym->prop; st; st = st->next) \
- if (st->text)
-
-struct menu {
- struct menu *next;
- struct menu *parent;
- struct menu *list;
- struct symbol *sym;
- struct property *prompt;
- struct expr *dep;
- unsigned int flags;
- //char *help;
- struct file *file;
- int lineno;
- void *data;
-};
-
-#define MENU_CHANGED 0x0001
-#define MENU_ROOT 0x0002
-
-#ifndef SWIG
-
-extern struct file *file_list;
-extern struct file *current_file;
-struct file *lookup_file(const char *name);
-
-extern struct symbol symbol_yes, symbol_no, symbol_mod;
-extern struct symbol *modules_sym;
-extern int cdebug;
-struct expr *expr_alloc_symbol(struct symbol *sym);
-struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
-struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
-struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
-struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
-struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
-struct expr *expr_copy(struct expr *org);
-void expr_free(struct expr *e);
-int expr_eq(struct expr *e1, struct expr *e2);
-void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
-tristate expr_calc_value(struct expr *e);
-struct expr *expr_eliminate_yn(struct expr *e);
-struct expr *expr_trans_bool(struct expr *e);
-struct expr *expr_eliminate_dups(struct expr *e);
-struct expr *expr_transform(struct expr *e);
-int expr_contains_symbol(struct expr *dep, struct symbol *sym);
-bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
-struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
-struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
-void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
-struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
-
-void expr_fprint(struct expr *e, FILE *out);
-
-static inline int expr_is_yes(struct expr *e)
-{
- return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
-}
-
-static inline int expr_is_no(struct expr *e)
-{
- return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
-}
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* EXPR_H */
projects / openwrt / staging / dedeckeh.git / blobdiff