2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
13 static const char nohelp_text[] = "There is no help available for this option.";
16 static struct menu **last_entry_ptr;
18 struct file *file_list;
19 struct file *current_file;
21 void menu_warn(struct menu *menu, const char *fmt, ...)
25 fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno);
26 vfprintf(stderr, fmt, ap);
27 fprintf(stderr, "\n");
31 static void prop_warn(struct property *prop, const char *fmt, ...)
35 fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno);
36 vfprintf(stderr, fmt, ap);
37 fprintf(stderr, "\n");
43 current_entry = current_menu = &rootmenu;
44 last_entry_ptr = &rootmenu.list;
47 void menu_add_entry(struct symbol *sym)
51 menu = xmalloc(sizeof(*menu));
52 memset(menu, 0, sizeof(*menu));
54 menu->parent = current_menu;
55 menu->file = current_file;
56 menu->lineno = zconf_lineno();
58 *last_entry_ptr = menu;
59 last_entry_ptr = &menu->next;
62 menu_add_symbol(P_SYMBOL, sym, NULL);
65 void menu_end_entry(void)
69 struct menu *menu_add_menu(void)
72 last_entry_ptr = ¤t_entry->list;
73 return current_menu = current_entry;
76 void menu_end_menu(void)
78 last_entry_ptr = ¤t_menu->next;
79 current_menu = current_menu->parent;
82 static struct expr *menu_check_dep(struct expr *e)
89 e->left.expr = menu_check_dep(e->left.expr);
93 e->left.expr = menu_check_dep(e->left.expr);
94 e->right.expr = menu_check_dep(e->right.expr);
97 /* change 'm' into 'm' && MODULES */
98 if (e->left.sym == &symbol_mod)
99 return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
107 void menu_add_dep(struct expr *dep)
109 current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
112 void menu_set_type(int type)
114 struct symbol *sym = current_entry->sym;
116 if (sym->type == type)
118 if (sym->type == S_UNKNOWN) {
122 menu_warn(current_entry,
123 "ignoring type redefinition of '%s' from '%s' to '%s'",
124 sym->name ? sym->name : "<choice>",
125 sym_type_name(sym->type), sym_type_name(type));
128 struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
130 struct property *prop = prop_alloc(type, current_entry->sym);
132 prop->menu = current_entry;
134 prop->visible.expr = menu_check_dep(dep);
137 if (isspace(*prompt)) {
138 prop_warn(prop, "leading whitespace ignored");
139 while (isspace(*prompt))
142 if (current_entry->prompt && current_entry != &rootmenu)
143 prop_warn(prop, "prompt redefined");
145 /* Apply all upper menus' visibilities to actual prompts. */
146 if(type == P_PROMPT) {
147 struct menu *menu = current_entry;
149 while ((menu = menu->parent) != NULL) {
150 struct expr *dup_expr;
152 if (!menu->visibility)
155 * Do not add a reference to the
156 * menu's visibility expression but
157 * use a copy of it. Otherwise the
158 * expression reduction functions
159 * will modify expressions that have
160 * multiple references which can
161 * cause unwanted side effects.
163 dup_expr = expr_copy(menu->visibility);
166 = expr_alloc_and(prop->visible.expr,
171 current_entry->prompt = prop;
178 struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
180 return menu_add_prop(type, prompt, NULL, dep);
183 void menu_add_visibility(struct expr *expr)
185 current_entry->visibility = expr_alloc_and(current_entry->visibility,
189 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
191 menu_add_prop(type, NULL, expr, dep);
194 void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
196 menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
199 void menu_add_option(int token, char *arg)
204 zconf_error("symbol '%s' redefines option 'modules'"
205 " already defined by symbol '%s'",
206 current_entry->sym->name,
209 modules_sym = current_entry->sym;
211 case T_OPT_DEFCONFIG_LIST:
212 if (!sym_defconfig_list)
213 sym_defconfig_list = current_entry->sym;
214 else if (sym_defconfig_list != current_entry->sym)
215 zconf_error("trying to redefine defconfig symbol");
223 static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
225 return sym2->type == S_INT || sym2->type == S_HEX ||
226 (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
229 static void sym_check_prop(struct symbol *sym)
231 struct property *prop;
233 for (prop = sym->prop; prop; prop = prop->next) {
234 switch (prop->type) {
236 if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
237 prop->expr->type != E_SYMBOL)
239 "default for config symbol '%s'"
240 " must be a single symbol", sym->name);
241 if (prop->expr->type != E_SYMBOL)
243 sym2 = prop_get_symbol(prop);
244 if (sym->type == S_HEX || sym->type == S_INT) {
245 if (!menu_validate_number(sym, sym2))
247 "'%s': number is invalid",
252 sym2 = prop_get_symbol(prop);
253 if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
255 "config symbol '%s' uses select, but is "
256 "not boolean or tristate", sym->name);
257 else if (sym2->type != S_UNKNOWN &&
258 sym2->type != S_BOOLEAN &&
259 sym2->type != S_TRISTATE)
261 "'%s' has wrong type. 'select' only "
262 "accept arguments of boolean and "
263 "tristate type", sym2->name);
266 if (sym->type != S_INT && sym->type != S_HEX)
267 prop_warn(prop, "range is only allowed "
268 "for int or hex symbols");
269 if (!menu_validate_number(sym, prop->expr->left.sym) ||
270 !menu_validate_number(sym, prop->expr->right.sym))
271 prop_warn(prop, "range is invalid");
279 void menu_finalize(struct menu *parent)
281 struct menu *menu, *last_menu;
283 struct property *prop;
284 struct expr *parentdep, *basedep, *dep, *dep2, **ep;
288 if (sym && sym_is_choice(sym)) {
289 if (sym->type == S_UNKNOWN) {
290 /* find the first choice value to find out choice type */
291 current_entry = parent;
292 for (menu = parent->list; menu; menu = menu->next) {
293 if (menu->sym && menu->sym->type != S_UNKNOWN) {
294 menu_set_type(menu->sym->type);
299 /* set the type of the remaining choice values */
300 for (menu = parent->list; menu; menu = menu->next) {
301 current_entry = menu;
302 if (menu->sym && menu->sym->type == S_UNKNOWN)
303 menu_set_type(sym->type);
305 parentdep = expr_alloc_symbol(sym);
306 } else if (parent->prompt)
307 parentdep = parent->prompt->visible.expr;
309 parentdep = parent->dep;
311 for (menu = parent->list; menu; menu = menu->next) {
312 basedep = expr_transform(menu->dep);
313 basedep = expr_alloc_and(expr_copy(parentdep), basedep);
314 basedep = expr_eliminate_dups(basedep);
317 prop = menu->sym->prop;
320 for (; prop; prop = prop->next) {
321 if (prop->menu != menu)
323 dep = expr_transform(prop->visible.expr);
324 dep = expr_alloc_and(expr_copy(basedep), dep);
325 dep = expr_eliminate_dups(dep);
326 if (menu->sym && menu->sym->type != S_TRISTATE)
327 dep = expr_trans_bool(dep);
328 prop->visible.expr = dep;
329 if (prop->type == P_SELECT) {
330 struct symbol *es = prop_get_symbol(prop);
331 es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
332 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
336 for (menu = parent->list; menu; menu = menu->next)
339 basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
340 basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
341 basedep = expr_eliminate_dups(expr_transform(basedep));
343 for (menu = parent->next; menu; menu = menu->next) {
344 dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
345 if (!expr_contains_symbol(dep, sym))
347 if (expr_depends_symbol(dep, sym))
349 dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
350 dep = expr_eliminate_dups(expr_transform(dep));
351 dep2 = expr_copy(basedep);
352 expr_eliminate_eq(&dep, &dep2);
354 if (!expr_is_yes(dep2)) {
361 menu->parent = parent;
365 parent->list = parent->next;
366 parent->next = last_menu->next;
367 last_menu->next = NULL;
370 sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
372 for (menu = parent->list; menu; menu = menu->next) {
373 if (sym && sym_is_choice(sym) &&
374 menu->sym && !sym_is_choice_value(menu->sym)) {
375 current_entry = menu;
376 menu->sym->flags |= SYMBOL_CHOICEVAL;
378 menu_warn(menu, "choice value must have a prompt");
379 for (prop = menu->sym->prop; prop; prop = prop->next) {
380 if (prop->type == P_DEFAULT)
381 prop_warn(prop, "defaults for choice "
382 "values not supported");
383 if (prop->menu == menu)
385 if (prop->type == P_PROMPT &&
386 prop->menu->parent->sym != sym)
387 prop_warn(prop, "choice value used outside its choice group");
389 /* Non-tristate choice values of tristate choices must
390 * depend on the choice being set to Y. The choice
391 * values' dependencies were propagated to their
392 * properties above, so the change here must be re-
395 if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
396 basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
397 menu->dep = expr_alloc_and(basedep, menu->dep);
398 for (prop = menu->sym->prop; prop; prop = prop->next) {
399 if (prop->menu != menu)
401 prop->visible.expr = expr_alloc_and(expr_copy(basedep),
405 menu_add_symbol(P_CHOICE, sym, NULL);
406 prop = sym_get_choice_prop(sym);
407 for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
409 *ep = expr_alloc_one(E_LIST, NULL);
410 (*ep)->right.sym = menu->sym;
412 if (menu->list && (!menu->prompt || !menu->prompt->text)) {
413 for (last_menu = menu->list; ; last_menu = last_menu->next) {
414 last_menu->parent = parent;
415 if (!last_menu->next)
418 last_menu->next = menu->next;
419 menu->next = menu->list;
424 if (sym && !(sym->flags & SYMBOL_WARNED)) {
425 if (sym->type == S_UNKNOWN)
426 menu_warn(parent, "config symbol defined without type");
428 if (sym_is_choice(sym) && !parent->prompt)
429 menu_warn(parent, "choice must have a prompt");
431 /* Check properties connected to this symbol */
433 sym->flags |= SYMBOL_WARNED;
436 if (sym && !sym_is_optional(sym) && parent->prompt) {
437 sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
438 expr_alloc_and(parent->prompt->visible.expr,
439 expr_alloc_symbol(&symbol_mod)));
443 bool menu_has_prompt(struct menu *menu)
451 * Determine if a menu is empty.
452 * A menu is considered empty if it contains no or only
455 bool menu_is_empty(struct menu *menu)
459 for (child = menu->list; child; child = child->next) {
460 if (menu_is_visible(child))
466 bool menu_is_visible(struct menu *menu)
475 if (menu->visibility) {
476 if (expr_calc_value(menu->visibility) == no)
483 visible = menu->prompt->visible.tri;
485 visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
490 if (!sym || sym_get_tristate_value(menu->sym) == no)
493 for (child = menu->list; child; child = child->next) {
494 if (menu_is_visible(child)) {
496 sym->flags |= SYMBOL_DEF_USER;
504 const char *menu_get_prompt(struct menu *menu)
507 return menu->prompt->text;
509 return menu->sym->name;
513 struct menu *menu_get_root_menu(struct menu *menu)
518 struct menu *menu_get_parent_menu(struct menu *menu)
522 for (; menu != &rootmenu; menu = menu->parent) {
523 type = menu->prompt ? menu->prompt->type : 0;
530 bool menu_has_help(struct menu *menu)
532 return menu->help != NULL;
535 const char *menu_get_help(struct menu *menu)
543 static void get_prompt_str(struct gstr *r, struct property *prop,
544 struct list_head *head)
547 struct menu *submenu[8], *menu, *location = NULL;
548 struct jump_key *jump;
550 str_printf(r, _("Prompt: %s\n"), _(prop->text));
551 menu = prop->menu->parent;
552 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
553 bool accessible = menu_is_visible(menu);
556 if (location == NULL && accessible)
559 if (head && location) {
560 jump = xmalloc(sizeof(struct jump_key));
562 if (menu_is_visible(prop->menu)) {
564 * There is not enough room to put the hint at the
565 * beginning of the "Prompt" line. Put the hint on the
566 * last "Location" line even when it would belong on
569 jump->target = prop->menu;
571 jump->target = location;
573 if (list_empty(head))
576 jump->index = list_entry(head->prev, struct jump_key,
579 list_add_tail(&jump->entries, head);
583 str_printf(r, _(" Location:\n"));
584 for (j = 4; --i >= 0; j += 2) {
586 if (head && location && menu == location)
587 jump->offset = strlen(r->s);
588 str_printf(r, "%*c-> %s", j, ' ',
589 _(menu_get_prompt(menu)));
591 str_printf(r, " (%s [=%s])", menu->sym->name ?
592 menu->sym->name : _("<choice>"),
593 sym_get_string_value(menu->sym));
601 * get property of type P_SYMBOL
603 static struct property *get_symbol_prop(struct symbol *sym)
605 struct property *prop = NULL;
607 for_all_properties(sym, prop, P_SYMBOL)
613 * head is optional and may be NULL
615 void get_symbol_str(struct gstr *r, struct symbol *sym,
616 struct list_head *head)
619 struct property *prop;
621 if (sym && sym->name) {
622 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
623 sym_get_string_value(sym));
624 str_printf(r, "Type : %s\n", sym_type_name(sym->type));
625 if (sym->type == S_INT || sym->type == S_HEX) {
626 prop = sym_get_range_prop(sym);
628 str_printf(r, "Range : ");
629 expr_gstr_print(prop->expr, r);
634 for_all_prompts(sym, prop)
635 get_prompt_str(r, prop, head);
637 prop = get_symbol_prop(sym);
639 str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
641 if (!expr_is_yes(prop->visible.expr)) {
642 str_append(r, _(" Depends on: "));
643 expr_gstr_print(prop->visible.expr, r);
649 for_all_properties(sym, prop, P_SELECT) {
651 str_append(r, " Selects: ");
654 str_printf(r, " && ");
655 expr_gstr_print(prop->expr, r);
659 if (sym->rev_dep.expr) {
660 str_append(r, _(" Selected by: "));
661 expr_gstr_print(sym->rev_dep.expr, r);
664 str_append(r, "\n\n");
667 struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
670 struct gstr res = str_new();
673 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
674 get_symbol_str(&res, sym, head);
676 str_append(&res, _("No matches found.\n"));
681 void menu_get_ext_help(struct menu *menu, struct gstr *help)
683 struct symbol *sym = menu->sym;
684 const char *help_text = nohelp_text;
686 if (menu_has_help(menu)) {
688 str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
689 help_text = menu_get_help(menu);
691 str_printf(help, "%s\n", _(help_text));
693 get_symbol_str(help, sym, NULL);