diff options
Diffstat (limited to 'package/config/expr.h')
| -rw-r--r-- | package/config/expr.h | 94 |
1 files changed, 61 insertions, 33 deletions
diff --git a/package/config/expr.h b/package/config/expr.h index 807e6f044..6408fefae 100644 --- a/package/config/expr.h +++ b/package/config/expr.h @@ -25,14 +25,13 @@ struct file { #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 + E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE }; union expr_data { @@ -45,9 +44,12 @@ struct expr { 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)) +#define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2)) +#define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2)) +#define EXPR_NOT(dep) (2-(dep)) + +#define expr_list_for_each_sym(l, e, s) \ + for (e = (l); e && (s = e->right.sym); e = e->left.expr) struct expr_value { struct expr *expr; @@ -63,9 +65,13 @@ enum symbol_type { S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER }; +/* enum values are used as index to symbol.def[] */ enum { S_DEF_USER, /* main user value */ - S_DEF_AUTO + S_DEF_AUTO, /* values read from auto.conf */ + S_DEF_DEF3, /* Reserved for UI usage */ + S_DEF_DEF4, /* Reserved for UI usage */ + S_DEF_COUNT }; struct symbol { @@ -73,7 +79,7 @@ struct symbol { char *name; enum symbol_type type; struct symbol_value curr; - struct symbol_value def[4]; + struct symbol_value def[S_DEF_COUNT]; tristate visible; int flags; struct property *prop; @@ -82,42 +88,64 @@ struct symbol { #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_CONST 0x0001 -#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_AUTO 0x1000 -#define SYMBOL_CHECKED 0x2000 -#define SYMBOL_WARNED 0x8000 -#define SYMBOL_DEF 0x10000 -#define SYMBOL_DEF_USER 0x10000 -#define SYMBOL_DEF_AUTO 0x20000 -#define SYMBOL_DEF3 0x40000 -#define SYMBOL_DEF4 0x80000 +#define SYMBOL_CONST 0x0001 /* symbol is const */ +#define SYMBOL_CHECK 0x0008 /* used during dependency checking */ +#define SYMBOL_CHOICE 0x0010 /* start of a choice block (null name) */ +#define SYMBOL_CHOICEVAL 0x0020 /* used as a value in a choice block */ +#define SYMBOL_VALID 0x0080 /* set when symbol.curr is calculated */ +#define SYMBOL_OPTIONAL 0x0100 /* choice is optional - values can be 'n' */ +#define SYMBOL_WRITE 0x0200 /* ? */ +#define SYMBOL_CHANGED 0x0400 /* ? */ +#define SYMBOL_AUTO 0x1000 /* value from environment variable */ +#define SYMBOL_CHECKED 0x2000 /* used during dependency checking */ +#define SYMBOL_WARNED 0x8000 /* warning has been issued */ + +/* Set when symbol.def[] is used */ +#define SYMBOL_DEF 0x10000 /* First bit of SYMBOL_DEF */ +#define SYMBOL_DEF_USER 0x10000 /* symbol.def[S_DEF_USER] is valid */ +#define SYMBOL_DEF_AUTO 0x20000 /* symbol.def[S_DEF_AUTO] is valid */ +#define SYMBOL_DEF3 0x40000 /* symbol.def[S_DEF_3] is valid */ +#define SYMBOL_DEF4 0x80000 /* symbol.def[S_DEF_4] is valid */ #define SYMBOL_MAXLENGTH 256 #define SYMBOL_HASHSIZE 257 #define SYMBOL_HASHMASK 0xff +/* A property represent the config options that can be associated + * with a config "symbol". + * Sample: + * config FOO + * default y + * prompt "foo prompt" + * select BAR + * config BAZ + * int "BAZ Value" + * range 1..255 + */ enum prop_type { - P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE, P_SELECT, P_RANGE + P_UNKNOWN, + P_PROMPT, /* prompt "foo prompt" or "BAZ Value" */ + P_COMMENT, /* text associated with a comment */ + P_MENU, /* prompt associated with a menuconfig option */ + P_DEFAULT, /* default y */ + P_CHOICE, /* choice value */ + P_SELECT, /* select BAR */ + P_RANGE, /* range 7..100 (for a symbol) */ + P_ENV, /* value from environment variable */ }; struct property { - struct property *next; - struct symbol *sym; - enum prop_type type; - const char *text; + struct property *next; /* next property - null if last */ + struct symbol *sym; /* the symbol for which the property is associated */ + enum prop_type type; /* type of property */ + const char *text; /* the prompt value - P_PROMPT, P_MENU, P_COMMENT */ struct expr_value visible; - struct expr *expr; - struct menu *menu; - struct file *file; - int lineno; + struct expr *expr; /* the optional conditional part of the property */ + struct menu *menu; /* the menu the property are associated with + * valid for: P_SELECT, P_RANGE, P_CHOICE, + * P_PROMPT, P_DEFAULT, P_MENU, P_COMMENT */ + struct file *file; /* what file was this property defined */ + int lineno; /* what lineno was this property defined */ }; #define for_all_properties(sym, st, tok) \ |