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[/] [or1k/] [trunk/] [linux/] [uClibc/] [extra/] [config/] [expr.h] - Blame information for rev 1771

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Line No. Rev Author Line
1 1325 phoenix
/*
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 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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 * Released under the terms of the GNU GPL v2.0.
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 */
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#ifndef EXPR_H
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#define EXPR_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdio.h>
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#ifndef __cplusplus
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#include <stdbool.h>
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#endif
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struct file {
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        struct file *next;
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        struct file *parent;
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        char *name;
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        int lineno;
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        int flags;
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};
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#define FILE_BUSY               0x0001
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#define FILE_SCANNED            0x0002
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#define FILE_PRINTED            0x0004
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typedef enum tristate {
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        no, mod, yes
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} tristate;
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enum expr_type {
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        E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_CHOICE, E_SYMBOL, E_RANGE
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};
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union expr_data {
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        struct expr *expr;
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        struct symbol *sym;
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};
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struct expr {
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        enum expr_type type;
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        union expr_data left, right;
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};
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#define E_OR(dep1, dep2)        (((dep1)>(dep2))?(dep1):(dep2))
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#define E_AND(dep1, dep2)       (((dep1)<(dep2))?(dep1):(dep2))
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#define E_NOT(dep)              (2-(dep))
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struct expr_value {
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        struct expr *expr;
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        tristate tri;
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};
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struct symbol_value {
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        void *val;
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        tristate tri;
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};
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enum symbol_type {
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        S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
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};
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struct symbol {
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        struct symbol *next;
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        char *name;
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        char *help;
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        enum symbol_type type;
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        struct symbol_value curr, user;
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        tristate visible;
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        int flags;
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        struct property *prop;
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        struct expr *dep, *dep2;
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        struct expr_value rev_dep;
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};
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#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)
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#define SYMBOL_YES              0x0001
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#define SYMBOL_MOD              0x0002
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#define SYMBOL_NO               0x0004
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#define SYMBOL_CONST            0x0007
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#define SYMBOL_CHECK            0x0008
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#define SYMBOL_CHOICE           0x0010
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#define SYMBOL_CHOICEVAL        0x0020
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#define SYMBOL_PRINTED          0x0040
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#define SYMBOL_VALID            0x0080
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#define SYMBOL_OPTIONAL         0x0100
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#define SYMBOL_WRITE            0x0200
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#define SYMBOL_CHANGED          0x0400
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#define SYMBOL_NEW              0x0800
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#define SYMBOL_AUTO             0x1000
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#define SYMBOL_CHECKED          0x2000
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#define SYMBOL_CHECK_DONE       0x4000
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#define SYMBOL_WARNED           0x8000
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#define SYMBOL_MAXLENGTH        256
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#define SYMBOL_HASHSIZE         257
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#define SYMBOL_HASHMASK         0xff
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enum prop_type {
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        P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE, P_SELECT, P_RANGE
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};
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struct property {
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        struct property *next;
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        struct symbol *sym;
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        enum prop_type type;
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        const char *text;
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        struct expr_value visible;
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        struct expr *expr;
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        struct menu *menu;
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        struct file *file;
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        int lineno;
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};
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#define for_all_properties(sym, st, tok) \
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        for (st = sym->prop; st; st = st->next) \
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                if (st->type == (tok))
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#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
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#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
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#define for_all_prompts(sym, st) \
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        for (st = sym->prop; st; st = st->next) \
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                if (st->text)
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struct menu {
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        struct menu *next;
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        struct menu *parent;
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        struct menu *list;
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        struct symbol *sym;
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        struct property *prompt;
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        struct expr *dep;
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        unsigned int flags;
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        //char *help;
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        struct file *file;
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        int lineno;
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        void *data;
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};
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#define MENU_CHANGED            0x0001
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#define MENU_ROOT               0x0002
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#ifndef SWIG
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extern struct file *file_list;
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extern struct file *current_file;
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struct file *lookup_file(const char *name);
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extern struct symbol symbol_yes, symbol_no, symbol_mod;
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extern struct symbol *modules_sym;
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extern int cdebug;
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struct expr *expr_alloc_symbol(struct symbol *sym);
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struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
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struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
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struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
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struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
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struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
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struct expr *expr_copy(struct expr *org);
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void expr_free(struct expr *e);
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int expr_eq(struct expr *e1, struct expr *e2);
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void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
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tristate expr_calc_value(struct expr *e);
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struct expr *expr_eliminate_yn(struct expr *e);
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struct expr *expr_trans_bool(struct expr *e);
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struct expr *expr_eliminate_dups(struct expr *e);
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struct expr *expr_transform(struct expr *e);
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int expr_contains_symbol(struct expr *dep, struct symbol *sym);
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bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
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struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
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struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
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void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
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struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
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void expr_fprint(struct expr *e, FILE *out);
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void print_expr(int mask, struct expr *e, int prevtoken);
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static inline int expr_is_yes(struct expr *e)
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{
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        return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
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}
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static inline int expr_is_no(struct expr *e)
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{
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        return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
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}
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* EXPR_H */

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