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 static 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");
220 case T_OPT_ALLNOCONFIG_Y:
221 current_entry->sym->flags |= SYMBOL_ALLNOCONFIG_Y;
226 static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
228 return sym2->type == S_INT || sym2->type == S_HEX ||
229 (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
232 static void sym_check_prop(struct symbol *sym)
234 struct property *prop;
238 for (prop = sym->prop; prop; prop = prop->next) {
239 switch (prop->type) {
241 if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
242 prop->expr->type != E_SYMBOL)
244 "default for config symbol '%s'"
245 " must be a single symbol", sym->name);
246 if (prop->expr->type != E_SYMBOL)
248 sym2 = prop_get_symbol(prop);
249 if (sym->type == S_HEX || sym->type == S_INT) {
250 if (!menu_validate_number(sym, sym2))
252 "'%s': number is invalid",
255 if (sym_is_choice(sym)) {
256 struct property *choice_prop =
257 sym_get_choice_prop(sym2);
260 prop_get_symbol(choice_prop) != sym)
262 "choice default symbol '%s' is not contained in the choice",
268 use = prop->type == P_SELECT ? "select" : "imply";
269 sym2 = prop_get_symbol(prop);
270 if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
272 "config symbol '%s' uses %s, but is "
273 "not boolean or tristate", sym->name, use);
274 else if (sym2->type != S_UNKNOWN &&
275 sym2->type != S_BOOLEAN &&
276 sym2->type != S_TRISTATE)
278 "'%s' has wrong type. '%s' only "
279 "accept arguments of boolean and "
280 "tristate type", sym2->name, use);
283 if (sym->type != S_INT && sym->type != S_HEX)
284 prop_warn(prop, "range is only allowed "
285 "for int or hex symbols");
286 if (!menu_validate_number(sym, prop->expr->left.sym) ||
287 !menu_validate_number(sym, prop->expr->right.sym))
288 prop_warn(prop, "range is invalid");
296 void menu_finalize(struct menu *parent)
298 struct menu *menu, *last_menu;
300 struct property *prop;
301 struct expr *parentdep, *basedep, *dep, *dep2, **ep;
305 if (sym && sym_is_choice(sym)) {
306 if (sym->type == S_UNKNOWN) {
307 /* find the first choice value to find out choice type */
308 current_entry = parent;
309 for (menu = parent->list; menu; menu = menu->next) {
310 if (menu->sym && menu->sym->type != S_UNKNOWN) {
311 menu_set_type(menu->sym->type);
316 /* set the type of the remaining choice values */
317 for (menu = parent->list; menu; menu = menu->next) {
318 current_entry = menu;
319 if (menu->sym && menu->sym->type == S_UNKNOWN)
320 menu_set_type(sym->type);
322 parentdep = expr_alloc_symbol(sym);
323 } else if (parent->prompt)
324 parentdep = parent->prompt->visible.expr;
326 parentdep = parent->dep;
328 for (menu = parent->list; menu; menu = menu->next) {
329 basedep = expr_transform(menu->dep);
330 basedep = expr_alloc_and(expr_copy(parentdep), basedep);
331 basedep = expr_eliminate_dups(basedep);
334 prop = menu->sym->prop;
337 for (; prop; prop = prop->next) {
338 if (prop->menu != menu)
340 dep = expr_transform(prop->visible.expr);
341 dep = expr_alloc_and(expr_copy(basedep), dep);
342 dep = expr_eliminate_dups(dep);
343 if (menu->sym && menu->sym->type != S_TRISTATE)
344 dep = expr_trans_bool(dep);
345 prop->visible.expr = dep;
346 if (prop->type == P_SELECT) {
347 struct symbol *es = prop_get_symbol(prop);
348 es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
349 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
350 } else if (prop->type == P_IMPLY) {
351 struct symbol *es = prop_get_symbol(prop);
352 es->implied.expr = expr_alloc_or(es->implied.expr,
353 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
357 for (menu = parent->list; menu; menu = menu->next)
360 basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
361 basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
362 basedep = expr_eliminate_dups(expr_transform(basedep));
364 for (menu = parent->next; menu; menu = menu->next) {
365 dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
366 if (!expr_contains_symbol(dep, sym))
368 if (expr_depends_symbol(dep, sym))
370 dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
371 dep = expr_eliminate_dups(expr_transform(dep));
372 dep2 = expr_copy(basedep);
373 expr_eliminate_eq(&dep, &dep2);
375 if (!expr_is_yes(dep2)) {
382 menu->parent = parent;
386 parent->list = parent->next;
387 parent->next = last_menu->next;
388 last_menu->next = NULL;
391 sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
393 for (menu = parent->list; menu; menu = menu->next) {
394 if (sym && sym_is_choice(sym) &&
395 menu->sym && !sym_is_choice_value(menu->sym)) {
396 current_entry = menu;
397 menu->sym->flags |= SYMBOL_CHOICEVAL;
399 menu_warn(menu, "choice value must have a prompt");
400 for (prop = menu->sym->prop; prop; prop = prop->next) {
401 if (prop->type == P_DEFAULT)
402 prop_warn(prop, "defaults for choice "
403 "values not supported");
404 if (prop->menu == menu)
406 if (prop->type == P_PROMPT &&
407 prop->menu->parent->sym != sym)
408 prop_warn(prop, "choice value used outside its choice group");
410 /* Non-tristate choice values of tristate choices must
411 * depend on the choice being set to Y. The choice
412 * values' dependencies were propagated to their
413 * properties above, so the change here must be re-
416 if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
417 basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
418 menu->dep = expr_alloc_and(basedep, menu->dep);
419 for (prop = menu->sym->prop; prop; prop = prop->next) {
420 if (prop->menu != menu)
422 prop->visible.expr = expr_alloc_and(expr_copy(basedep),
426 menu_add_symbol(P_CHOICE, sym, NULL);
427 prop = sym_get_choice_prop(sym);
428 for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
430 *ep = expr_alloc_one(E_LIST, NULL);
431 (*ep)->right.sym = menu->sym;
433 if (menu->list && (!menu->prompt || !menu->prompt->text)) {
434 for (last_menu = menu->list; ; last_menu = last_menu->next) {
435 last_menu->parent = parent;
436 if (!last_menu->next)
439 last_menu->next = menu->next;
440 menu->next = menu->list;
445 if (sym && !(sym->flags & SYMBOL_WARNED)) {
446 if (sym->type == S_UNKNOWN)
447 menu_warn(parent, "config symbol defined without type");
449 if (sym_is_choice(sym) && !parent->prompt)
450 menu_warn(parent, "choice must have a prompt");
452 /* Check properties connected to this symbol */
454 sym->flags |= SYMBOL_WARNED;
457 if (sym && !sym_is_optional(sym) && parent->prompt) {
458 sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
459 expr_alloc_and(parent->prompt->visible.expr,
460 expr_alloc_symbol(&symbol_mod)));
464 bool menu_has_prompt(struct menu *menu)
472 * Determine if a menu is empty.
473 * A menu is considered empty if it contains no or only
476 bool menu_is_empty(struct menu *menu)
480 for (child = menu->list; child; child = child->next) {
481 if (menu_is_visible(child))
487 bool menu_is_visible(struct menu *menu)
496 if (menu->visibility) {
497 if (expr_calc_value(menu->visibility) == no)
504 visible = menu->prompt->visible.tri;
506 visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
511 if (!sym || sym_get_tristate_value(menu->sym) == no)
514 for (child = menu->list; child; child = child->next) {
515 if (menu_is_visible(child)) {
517 sym->flags |= SYMBOL_DEF_USER;
525 const char *menu_get_prompt(struct menu *menu)
528 return menu->prompt->text;
530 return menu->sym->name;
534 struct menu *menu_get_root_menu(struct menu *menu)
539 struct menu *menu_get_parent_menu(struct menu *menu)
543 for (; menu != &rootmenu; menu = menu->parent) {
544 type = menu->prompt ? menu->prompt->type : 0;
551 bool menu_has_help(struct menu *menu)
553 return menu->help != NULL;
556 const char *menu_get_help(struct menu *menu)
564 static void get_prompt_str(struct gstr *r, struct property *prop,
565 struct list_head *head)
568 struct menu *submenu[8], *menu, *location = NULL;
569 struct jump_key *jump = NULL;
571 str_printf(r, _("Prompt: %s\n"), _(prop->text));
572 menu = prop->menu->parent;
573 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
574 bool accessible = menu_is_visible(menu);
577 if (location == NULL && accessible)
580 if (head && location) {
581 jump = xmalloc(sizeof(struct jump_key));
583 if (menu_is_visible(prop->menu)) {
585 * There is not enough room to put the hint at the
586 * beginning of the "Prompt" line. Put the hint on the
587 * last "Location" line even when it would belong on
590 jump->target = prop->menu;
592 jump->target = location;
594 if (list_empty(head))
597 jump->index = list_entry(head->prev, struct jump_key,
600 list_add_tail(&jump->entries, head);
604 str_printf(r, _(" Location:\n"));
605 for (j = 4; --i >= 0; j += 2) {
607 if (jump && menu == location)
608 jump->offset = strlen(r->s);
609 str_printf(r, "%*c-> %s", j, ' ',
610 _(menu_get_prompt(menu)));
612 str_printf(r, " (%s [=%s])", menu->sym->name ?
613 menu->sym->name : _("<choice>"),
614 sym_get_string_value(menu->sym));
622 * get property of type P_SYMBOL
624 static struct property *get_symbol_prop(struct symbol *sym)
626 struct property *prop = NULL;
628 for_all_properties(sym, prop, P_SYMBOL)
633 static void get_symbol_props_str(struct gstr *r, struct symbol *sym,
634 enum prop_type tok, const char *prefix)
637 struct property *prop;
639 for_all_properties(sym, prop, tok) {
641 str_append(r, prefix);
644 str_printf(r, " && ");
645 expr_gstr_print(prop->expr, r);
652 * head is optional and may be NULL
654 static void get_symbol_str(struct gstr *r, struct symbol *sym,
655 struct list_head *head)
657 struct property *prop;
659 if (sym && sym->name) {
660 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
661 sym_get_string_value(sym));
662 str_printf(r, "Type : %s\n", sym_type_name(sym->type));
663 if (sym->type == S_INT || sym->type == S_HEX) {
664 prop = sym_get_range_prop(sym);
666 str_printf(r, "Range : ");
667 expr_gstr_print(prop->expr, r);
672 for_all_prompts(sym, prop)
673 get_prompt_str(r, prop, head);
675 prop = get_symbol_prop(sym);
677 str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
679 if (!expr_is_yes(prop->visible.expr)) {
680 str_append(r, _(" Depends on: "));
681 expr_gstr_print(prop->visible.expr, r);
686 get_symbol_props_str(r, sym, P_SELECT, _(" Selects: "));
687 if (sym->rev_dep.expr) {
688 str_append(r, _(" Selected by: "));
689 expr_gstr_print(sym->rev_dep.expr, r);
693 get_symbol_props_str(r, sym, P_IMPLY, _(" Implies: "));
694 if (sym->implied.expr) {
695 str_append(r, _(" Implied by: "));
696 expr_gstr_print(sym->implied.expr, r);
700 str_append(r, "\n\n");
703 struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
706 struct gstr res = str_new();
709 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
710 get_symbol_str(&res, sym, head);
712 str_append(&res, _("No matches found.\n"));
717 void menu_get_ext_help(struct menu *menu, struct gstr *help)
719 struct symbol *sym = menu->sym;
720 const char *help_text = nohelp_text;
722 if (menu_has_help(menu)) {
724 str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
725 help_text = menu_get_help(menu);
727 str_printf(help, "%s\n", _(help_text));
729 get_symbol_str(help, sym, NULL);