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/*
* 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;
#ifdef CML1
struct statement *stmt;
struct statement *last_stmt;
#endif
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
};
union expr_data {
struct expr *expr;
struct symbol *sym;
};
struct expr {
#ifdef CML1
int token;
#else
enum expr_type type;
#endif
union expr_data left, right;
};
#define E_TRI(ev) ((ev).tri)
#define E_EXPR(ev) ((ev).expr)
#define E_CALC(ev) (E_TRI(ev) = expr_calc_value(E_EXPR(ev)))
#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;
};
#define S_VAL(sv) ((sv).value)
#define S_TRI(sv) ((sv).tri)
#define S_EQ(sv1, sv2) (S_VAL(sv1) == S_VAL(sv2) || !strcmp(S_VAL(sv1), S_VAL(sv2)))
struct symbol_value {
void *value;
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;
#ifdef CML1
int type;
#else
enum symbol_type type;
#endif
struct symbol_value curr, def;
tristate visible;
int flags;
struct property *prop;
struct expr *dep, *dep2;
struct menu *menu;
};
#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)
#ifdef CML1
#define SYMBOL_UNKNOWN S_UNKNOWN
#define SYMBOL_BOOLEAN S_BOOLEAN
#define SYMBOL_TRISTATE S_TRISTATE
#define SYMBOL_INT S_INT
#define SYMBOL_HEX S_HEX
#define SYMBOL_STRING S_STRING
#define SYMBOL_OTHER S_OTHER
#endif
#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_MAXLENGTH 256
#define SYMBOL_HASHSIZE 257
#define SYMBOL_HASHMASK 0xff
enum prop_type {
P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_ROOTMENU, P_DEFAULT, P_CHOICE
};
struct property {
struct property *next;
struct symbol *sym;
#ifdef CML1
int token;
#else
enum prop_type type;
#endif
const char *text;
struct symbol *def;
struct expr_value visible;
struct expr *dep;
struct expr *dep2;
struct menu *menu;
struct file *file;
int lineno;
#ifdef CML1
struct property *next_pos;
#endif
};
#define for_all_properties(sym, st, tok) \
for (st = sym->prop; st; st = st->next) \
if (st->type == (tok))
#define for_all_prompts(sym, st) for_all_properties(sym, st, P_PROMPT)
#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)
struct menu {
struct menu *next;
struct menu *parent;
struct menu *list;
struct symbol *sym;
struct property *prompt;
struct expr *dep;
//char *help;
struct file *file;
int lineno;
void *data;
};
#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;
extern int print_type;
struct expr *expr_alloc_symbol(struct symbol *sym);
#ifdef CML1
struct expr *expr_alloc_one(int token, struct expr *ce);
struct expr *expr_alloc_two(int token, struct expr *e1, struct expr *e2);
struct expr *expr_alloc_comp(int token, struct symbol *s1, struct symbol *s2);
#else
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);
#endif
struct expr *expr_alloc_and(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);
void print_expr(int mask, struct expr *e, int prevtoken);
#ifdef CML1
static inline int expr_is_yes(struct expr *e)
{
return !e || (e->token == WORD && e->left.sym == &symbol_yes);
}
static inline int expr_is_no(struct expr *e)
{
return e && (e->token == WORD && e->left.sym == &symbol_no);
}
#else
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
#endif
#ifdef __cplusplus
}
#endif
#endif /* EXPR_H */
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