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, "type of '%s' redefined from '%s' to '%s'",
123 sym->name ? sym->name : "<choice>",
124 sym_type_name(sym->type), sym_type_name(type));
127 struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
129 struct property *prop = prop_alloc(type, current_entry->sym);
131 prop->menu = current_entry;
133 prop->visible.expr = menu_check_dep(dep);
136 if (isspace(*prompt)) {
137 prop_warn(prop, "leading whitespace ignored");
138 while (isspace(*prompt))
141 if (current_entry->prompt && current_entry != &rootmenu)
142 prop_warn(prop, "prompt redefined");
144 /* Apply all upper menus' visibilities to actual prompts. */
145 if(type == P_PROMPT) {
146 struct menu *menu = current_entry;
148 while ((menu = menu->parent) != NULL) {
149 struct expr *dup_expr;
151 if (!menu->visibility)
154 * Do not add a reference to the
155 * menu's visibility expression but
156 * use a copy of it. Otherwise the
157 * expression reduction functions
158 * will modify expressions that have
159 * multiple references which can
160 * cause unwanted side effects.
162 dup_expr = expr_copy(menu->visibility);
165 = expr_alloc_and(prop->visible.expr,
170 current_entry->prompt = prop;
177 struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
179 return menu_add_prop(type, prompt, NULL, dep);
182 void menu_add_visibility(struct expr *expr)
184 current_entry->visibility = expr_alloc_and(current_entry->visibility,
188 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
190 menu_add_prop(type, NULL, expr, dep);
193 void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
195 menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
198 void menu_add_option(int token, char *arg)
202 modules_sym = current_entry->sym;
204 case T_OPT_DEFCONFIG_LIST:
205 if (!sym_defconfig_list)
206 sym_defconfig_list = current_entry->sym;
207 else if (sym_defconfig_list != current_entry->sym)
208 zconf_error("trying to redefine defconfig symbol");
216 static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
218 return sym2->type == S_INT || sym2->type == S_HEX ||
219 (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
222 static void sym_check_prop(struct symbol *sym)
224 struct property *prop;
226 for (prop = sym->prop; prop; prop = prop->next) {
227 switch (prop->type) {
229 if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
230 prop->expr->type != E_SYMBOL)
232 "default for config symbol '%s'"
233 " must be a single symbol", sym->name);
234 if (prop->expr->type != E_SYMBOL)
236 sym2 = prop_get_symbol(prop);
237 if (sym->type == S_HEX || sym->type == S_INT) {
238 if (!menu_validate_number(sym, sym2))
240 "'%s': number is invalid",
245 sym2 = prop_get_symbol(prop);
246 if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
248 "config symbol '%s' uses select, but is "
249 "not boolean or tristate", sym->name);
250 else if (sym2->type != S_UNKNOWN &&
251 sym2->type != S_BOOLEAN &&
252 sym2->type != S_TRISTATE)
254 "'%s' has wrong type. 'select' only "
255 "accept arguments of boolean and "
256 "tristate type", sym2->name);
259 if (sym->type != S_INT && sym->type != S_HEX)
260 prop_warn(prop, "range is only allowed "
261 "for int or hex symbols");
262 if (!menu_validate_number(sym, prop->expr->left.sym) ||
263 !menu_validate_number(sym, prop->expr->right.sym))
264 prop_warn(prop, "range is invalid");
272 void menu_finalize(struct menu *parent)
274 struct menu *menu, *last_menu;
276 struct property *prop;
277 struct expr *parentdep, *basedep, *dep, *dep2, **ep;
281 if (sym && sym_is_choice(sym)) {
282 if (sym->type == S_UNKNOWN) {
283 /* find the first choice value to find out choice type */
284 current_entry = parent;
285 for (menu = parent->list; menu; menu = menu->next) {
286 if (menu->sym && menu->sym->type != S_UNKNOWN) {
287 menu_set_type(menu->sym->type);
292 /* set the type of the remaining choice values */
293 for (menu = parent->list; menu; menu = menu->next) {
294 current_entry = menu;
295 if (menu->sym && menu->sym->type == S_UNKNOWN)
296 menu_set_type(sym->type);
298 parentdep = expr_alloc_symbol(sym);
299 } else if (parent->prompt)
300 parentdep = parent->prompt->visible.expr;
302 parentdep = parent->dep;
304 for (menu = parent->list; menu; menu = menu->next) {
305 basedep = expr_transform(menu->dep);
306 basedep = expr_alloc_and(expr_copy(parentdep), basedep);
307 basedep = expr_eliminate_dups(basedep);
310 prop = menu->sym->prop;
313 for (; prop; prop = prop->next) {
314 if (prop->menu != menu)
316 dep = expr_transform(prop->visible.expr);
317 dep = expr_alloc_and(expr_copy(basedep), dep);
318 dep = expr_eliminate_dups(dep);
319 if (menu->sym && menu->sym->type != S_TRISTATE)
320 dep = expr_trans_bool(dep);
321 prop->visible.expr = dep;
322 if (prop->type == P_SELECT) {
323 struct symbol *es = prop_get_symbol(prop);
324 es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
325 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
329 for (menu = parent->list; menu; menu = menu->next)
332 basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
333 basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
334 basedep = expr_eliminate_dups(expr_transform(basedep));
336 for (menu = parent->next; menu; menu = menu->next) {
337 dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
338 if (!expr_contains_symbol(dep, sym))
340 if (expr_depends_symbol(dep, sym))
342 dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
343 dep = expr_eliminate_dups(expr_transform(dep));
344 dep2 = expr_copy(basedep);
345 expr_eliminate_eq(&dep, &dep2);
347 if (!expr_is_yes(dep2)) {
354 menu->parent = parent;
358 parent->list = parent->next;
359 parent->next = last_menu->next;
360 last_menu->next = NULL;
363 sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
365 for (menu = parent->list; menu; menu = menu->next) {
366 if (sym && sym_is_choice(sym) &&
367 menu->sym && !sym_is_choice_value(menu->sym)) {
368 current_entry = menu;
369 menu->sym->flags |= SYMBOL_CHOICEVAL;
371 menu_warn(menu, "choice value must have a prompt");
372 for (prop = menu->sym->prop; prop; prop = prop->next) {
373 if (prop->type == P_DEFAULT)
374 prop_warn(prop, "defaults for choice "
375 "values not supported");
376 if (prop->menu == menu)
378 if (prop->type == P_PROMPT &&
379 prop->menu->parent->sym != sym)
380 prop_warn(prop, "choice value used outside its choice group");
382 /* Non-tristate choice values of tristate choices must
383 * depend on the choice being set to Y. The choice
384 * values' dependencies were propagated to their
385 * properties above, so the change here must be re-
388 if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
389 basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
390 menu->dep = expr_alloc_and(basedep, menu->dep);
391 for (prop = menu->sym->prop; prop; prop = prop->next) {
392 if (prop->menu != menu)
394 prop->visible.expr = expr_alloc_and(expr_copy(basedep),
398 menu_add_symbol(P_CHOICE, sym, NULL);
399 prop = sym_get_choice_prop(sym);
400 for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
402 *ep = expr_alloc_one(E_LIST, NULL);
403 (*ep)->right.sym = menu->sym;
405 if (menu->list && (!menu->prompt || !menu->prompt->text)) {
406 for (last_menu = menu->list; ; last_menu = last_menu->next) {
407 last_menu->parent = parent;
408 if (!last_menu->next)
411 last_menu->next = menu->next;
412 menu->next = menu->list;
417 if (sym && !(sym->flags & SYMBOL_WARNED)) {
418 if (sym->type == S_UNKNOWN)
419 menu_warn(parent, "config symbol defined without type");
421 if (sym_is_choice(sym) && !parent->prompt)
422 menu_warn(parent, "choice must have a prompt");
424 /* Check properties connected to this symbol */
426 sym->flags |= SYMBOL_WARNED;
429 if (sym && !sym_is_optional(sym) && parent->prompt) {
430 sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
431 expr_alloc_and(parent->prompt->visible.expr,
432 expr_alloc_symbol(&symbol_mod)));
436 bool menu_has_prompt(struct menu *menu)
444 * Determine if a menu is empty.
445 * A menu is considered empty if it contains no or only
448 bool menu_is_empty(struct menu *menu)
452 for (child = menu->list; child; child = child->next) {
453 if (menu_is_visible(child))
459 bool menu_is_visible(struct menu *menu)
468 if (menu->visibility) {
469 if (expr_calc_value(menu->visibility) == no)
476 visible = menu->prompt->visible.tri;
478 visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
483 if (!sym || sym_get_tristate_value(menu->sym) == no)
486 for (child = menu->list; child; child = child->next) {
487 if (menu_is_visible(child)) {
489 sym->flags |= SYMBOL_DEF_USER;
497 const char *menu_get_prompt(struct menu *menu)
500 return menu->prompt->text;
502 return menu->sym->name;
506 struct menu *menu_get_root_menu(struct menu *menu)
511 struct menu *menu_get_parent_menu(struct menu *menu)
515 for (; menu != &rootmenu; menu = menu->parent) {
516 type = menu->prompt ? menu->prompt->type : 0;
523 bool menu_has_help(struct menu *menu)
525 return menu->help != NULL;
528 const char *menu_get_help(struct menu *menu)
536 static void get_prompt_str(struct gstr *r, struct property *prop,
537 struct list_head *head)
540 struct menu *submenu[8], *menu, *location = NULL;
541 struct jump_key *jump;
543 str_printf(r, _("Prompt: %s\n"), _(prop->text));
544 menu = prop->menu->parent;
545 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
546 bool accessible = menu_is_visible(menu);
549 if (location == NULL && accessible)
552 if (head && location) {
553 jump = xmalloc(sizeof(struct jump_key));
555 if (menu_is_visible(prop->menu)) {
557 * There is not enough room to put the hint at the
558 * beginning of the "Prompt" line. Put the hint on the
559 * last "Location" line even when it would belong on
562 jump->target = prop->menu;
564 jump->target = location;
566 if (list_empty(head))
569 jump->index = list_entry(head->prev, struct jump_key,
572 list_add_tail(&jump->entries, head);
576 str_printf(r, _(" Location:\n"));
577 for (j = 4; --i >= 0; j += 2) {
579 if (head && location && menu == location)
580 jump->offset = r->len - 1;
581 str_printf(r, "%*c-> %s", j, ' ',
582 _(menu_get_prompt(menu)));
584 str_printf(r, " (%s [=%s])", menu->sym->name ?
585 menu->sym->name : _("<choice>"),
586 sym_get_string_value(menu->sym));
594 * get peoperty of type P_SYMBOL
596 static struct property *get_symbol_prop(struct symbol *sym)
598 struct property *prop = NULL;
600 for_all_properties(sym, prop, P_SYMBOL)
606 * head is optional and may be NULL
608 void get_symbol_str(struct gstr *r, struct symbol *sym,
609 struct list_head *head)
612 struct property *prop;
614 if (sym && sym->name) {
615 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
616 sym_get_string_value(sym));
617 str_printf(r, "Type : %s\n", sym_type_name(sym->type));
618 if (sym->type == S_INT || sym->type == S_HEX) {
619 prop = sym_get_range_prop(sym);
621 str_printf(r, "Range : ");
622 expr_gstr_print(prop->expr, r);
627 for_all_prompts(sym, prop)
628 get_prompt_str(r, prop, head);
630 prop = get_symbol_prop(sym);
632 str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
634 if (!expr_is_yes(prop->visible.expr)) {
635 str_append(r, _(" Depends on: "));
636 expr_gstr_print(prop->visible.expr, r);
642 for_all_properties(sym, prop, P_SELECT) {
644 str_append(r, " Selects: ");
647 str_printf(r, " && ");
648 expr_gstr_print(prop->expr, r);
652 if (sym->rev_dep.expr) {
653 str_append(r, _(" Selected by: "));
654 expr_gstr_print(sym->rev_dep.expr, r);
657 str_append(r, "\n\n");
660 struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
663 struct gstr res = str_new();
666 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
667 get_symbol_str(&res, sym, head);
669 str_append(&res, _("No matches found.\n"));
674 void menu_get_ext_help(struct menu *menu, struct gstr *help)
676 struct symbol *sym = menu->sym;
677 const char *help_text = nohelp_text;
679 if (menu_has_help(menu)) {
681 str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
682 help_text = menu_get_help(menu);
684 str_printf(help, "%s\n", _(help_text));
686 get_symbol_str(help, sym, NULL);