| -rw-r--r-- | scripts/kconfig/expr.h | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h new file mode 100644 index 0000000..fd9c32a --- a/dev/null +++ b/scripts/kconfig/expr.h @@ -0,0 +1,242 @@ +/* + * 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 */ |