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-rw-r--r--scripts/config/expr.h242
1 files changed, 242 insertions, 0 deletions
diff --git a/scripts/config/expr.h b/scripts/config/expr.h
new file mode 100644
index 0000000..e96d03b
--- /dev/null
+++ b/scripts/config/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 */