base/config/kconfig/expr.h
Go to the documentation of this file.00001
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#ifndef EXPR_H
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#define EXPR_H
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00009
#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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00018 struct file {
00019 struct file *
next;
00020 struct file *
parent;
00021 char *
name;
00022 int lineno;
00023 int flags;
00024 };
00025
00026 #define FILE_BUSY 0x0001
00027 #define FILE_SCANNED 0x0002
00028 #define FILE_PRINTED 0x0004
00029
00030 typedef enum tristate {
00031
no,
mod,
yes
00032 }
tristate;
00033
00034 enum expr_type {
00035
E_NONE,
E_OR,
E_AND,
E_NOT,
E_EQUAL,
E_UNEQUAL,
E_CHOICE,
E_SYMBOL,
E_RANGE
00036 };
00037
00038 union expr_data {
00039 struct expr *
expr;
00040 struct symbol *
sym;
00041 };
00042
00043 struct expr {
00044 enum expr_type type;
00045 union expr_data left, right;
00046 };
00047
00048 #define E_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2))
00049 #define E_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2))
00050 #define E_NOT(dep) (2-(dep))
00051
00052 struct expr_value {
00053 struct expr *
expr;
00054 tristate tri;
00055 };
00056
00057 struct symbol_value {
00058 void *
val;
00059 tristate tri;
00060 };
00061
00062 enum symbol_type {
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S_UNKNOWN,
S_BOOLEAN,
S_TRISTATE,
S_INT,
S_HEX,
S_STRING,
S_OTHER
00064 };
00065
00066 struct symbol {
00067 struct symbol *
next;
00068 char *
name;
00069 char *
help;
00070 enum symbol_type type;
00071 struct symbol_value curr, user;
00072 tristate visible;
00073 int flags;
00074 struct property *
prop;
00075 struct expr *
dep, *
dep2;
00076 struct expr_value rev_dep;
00077 };
00078
00079 #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)
00080
00081 #define SYMBOL_YES 0x0001
00082 #define SYMBOL_MOD 0x0002
00083 #define SYMBOL_NO 0x0004
00084 #define SYMBOL_CONST 0x0007
00085 #define SYMBOL_CHECK 0x0008
00086 #define SYMBOL_CHOICE 0x0010
00087 #define SYMBOL_CHOICEVAL 0x0020
00088 #define SYMBOL_PRINTED 0x0040
00089 #define SYMBOL_VALID 0x0080
00090 #define SYMBOL_OPTIONAL 0x0100
00091 #define SYMBOL_WRITE 0x0200
00092 #define SYMBOL_CHANGED 0x0400
00093 #define SYMBOL_NEW 0x0800
00094 #define SYMBOL_AUTO 0x1000
00095 #define SYMBOL_CHECKED 0x2000
00096 #define SYMBOL_CHECK_DONE 0x4000
00097 #define SYMBOL_WARNED 0x8000
00098
00099 #define SYMBOL_MAXLENGTH 256
00100 #define SYMBOL_HASHSIZE 257
00101 #define SYMBOL_HASHMASK 0xff
00102
00103 enum prop_type {
00104
P_UNKNOWN,
P_PROMPT,
P_COMMENT,
P_MENU,
P_DEFAULT,
P_CHOICE,
P_SELECT,
P_RANGE
00105 };
00106
00107 struct property {
00108 struct property *
next;
00109 struct symbol *
sym;
00110 enum prop_type type;
00111 const char *
text;
00112 struct expr_value visible;
00113 struct expr *
expr;
00114 struct menu *
menu;
00115 struct file *
file;
00116 int lineno;
00117 };
00118
00119 #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))
00122 #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
00123 #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
00124 #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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00128 struct menu {
00129 struct menu *
next;
00130 struct menu *
parent;
00131 struct menu *
list;
00132 struct symbol *
sym;
00133 struct property *
prompt;
00134 struct expr *
dep;
00135 unsigned int flags;
00136
00137 struct file *
file;
00138 int lineno;
00139 void *
data;
00140 };
00141
00142 #define MENU_CHANGED 0x0001
00143 #define MENU_ROOT 0x0002
00144
00145
#ifndef SWIG
00146
00147
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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00151
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);
00175
00176
void expr_fprint(
struct expr *e, FILE *out);
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void print_expr(
int mask,
struct expr *e,
int prevtoken);
00178
00179 static inline int expr_is_yes(
struct expr *e)
00180 {
00181
return !e || (e->
type ==
E_SYMBOL && e->left.sym == &
symbol_yes);
00182 }
00183
00184 static inline int expr_is_no(
struct expr *e)
00185 {
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return e && (e->
type ==
E_SYMBOL && e->left.sym == &symbol_no);
00187 }
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#endif
00189
00190
#ifdef __cplusplus
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}
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#endif
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#endif
Generated on Thu Nov 20 11:49:47 2008 for RTAI API by
1.3.8