Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> | |
3 | * Released under the terms of the GNU GPL v2.0. | |
4 | */ | |
5 | ||
dd003306 | 6 | #include <ctype.h> |
10a4b277 | 7 | #include <stdarg.h> |
1da177e4 LT |
8 | #include <stdlib.h> |
9 | #include <string.h> | |
10 | ||
1da177e4 LT |
11 | #include "lkc.h" |
12 | ||
57e6292d | 13 | static const char nohelp_text[] = "There is no help available for this option."; |
6bd5999d | 14 | |
1da177e4 LT |
15 | struct menu rootmenu; |
16 | static struct menu **last_entry_ptr; | |
17 | ||
18 | struct file *file_list; | |
19 | struct file *current_file; | |
20 | ||
93449082 | 21 | void menu_warn(struct menu *menu, const char *fmt, ...) |
1da177e4 LT |
22 | { |
23 | va_list ap; | |
24 | va_start(ap, fmt); | |
25 | fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno); | |
26 | vfprintf(stderr, fmt, ap); | |
27 | fprintf(stderr, "\n"); | |
28 | va_end(ap); | |
29 | } | |
30 | ||
31 | static void prop_warn(struct property *prop, const char *fmt, ...) | |
32 | { | |
33 | va_list ap; | |
34 | va_start(ap, fmt); | |
35 | fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno); | |
36 | vfprintf(stderr, fmt, ap); | |
37 | fprintf(stderr, "\n"); | |
38 | va_end(ap); | |
39 | } | |
40 | ||
692d97c3 | 41 | void _menu_init(void) |
1da177e4 LT |
42 | { |
43 | current_entry = current_menu = &rootmenu; | |
44 | last_entry_ptr = &rootmenu.list; | |
45 | } | |
46 | ||
47 | void menu_add_entry(struct symbol *sym) | |
48 | { | |
49 | struct menu *menu; | |
50 | ||
177acf78 | 51 | menu = xmalloc(sizeof(*menu)); |
1da177e4 LT |
52 | memset(menu, 0, sizeof(*menu)); |
53 | menu->sym = sym; | |
54 | menu->parent = current_menu; | |
55 | menu->file = current_file; | |
56 | menu->lineno = zconf_lineno(); | |
57 | ||
58 | *last_entry_ptr = menu; | |
59 | last_entry_ptr = &menu->next; | |
60 | current_entry = menu; | |
59e89e3d SR |
61 | if (sym) |
62 | menu_add_symbol(P_SYMBOL, sym, NULL); | |
1da177e4 LT |
63 | } |
64 | ||
a02f0570 | 65 | struct menu *menu_add_menu(void) |
1da177e4 | 66 | { |
1da177e4 | 67 | last_entry_ptr = ¤t_entry->list; |
a02f0570 | 68 | return current_menu = current_entry; |
1da177e4 LT |
69 | } |
70 | ||
71 | void menu_end_menu(void) | |
72 | { | |
73 | last_entry_ptr = ¤t_menu->next; | |
74 | current_menu = current_menu->parent; | |
75 | } | |
76 | ||
9a826842 UM |
77 | /* |
78 | * Rewrites 'm' to 'm' && MODULES, so that it evaluates to 'n' when running | |
79 | * without modules | |
80 | */ | |
81 | static struct expr *rewrite_m(struct expr *e) | |
1da177e4 LT |
82 | { |
83 | if (!e) | |
84 | return e; | |
85 | ||
86 | switch (e->type) { | |
87 | case E_NOT: | |
9a826842 | 88 | e->left.expr = rewrite_m(e->left.expr); |
1da177e4 LT |
89 | break; |
90 | case E_OR: | |
91 | case E_AND: | |
9a826842 UM |
92 | e->left.expr = rewrite_m(e->left.expr); |
93 | e->right.expr = rewrite_m(e->right.expr); | |
1da177e4 LT |
94 | break; |
95 | case E_SYMBOL: | |
96 | /* change 'm' into 'm' && MODULES */ | |
97 | if (e->left.sym == &symbol_mod) | |
98 | return expr_alloc_and(e, expr_alloc_symbol(modules_sym)); | |
99 | break; | |
100 | default: | |
101 | break; | |
102 | } | |
103 | return e; | |
104 | } | |
105 | ||
106 | void menu_add_dep(struct expr *dep) | |
107 | { | |
f77850d3 | 108 | current_entry->dep = expr_alloc_and(current_entry->dep, dep); |
1da177e4 LT |
109 | } |
110 | ||
111 | void menu_set_type(int type) | |
112 | { | |
113 | struct symbol *sym = current_entry->sym; | |
114 | ||
115 | if (sym->type == type) | |
116 | return; | |
117 | if (sym->type == S_UNKNOWN) { | |
118 | sym->type = type; | |
119 | return; | |
120 | } | |
57540f1d MW |
121 | menu_warn(current_entry, |
122 | "ignoring type redefinition of '%s' from '%s' to '%s'", | |
123 | sym->name ? sym->name : "<choice>", | |
124 | sym_type_name(sym->type), sym_type_name(type)); | |
1da177e4 LT |
125 | } |
126 | ||
ad8d40cd | 127 | static struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep) |
1da177e4 LT |
128 | { |
129 | struct property *prop = prop_alloc(type, current_entry->sym); | |
130 | ||
131 | prop->menu = current_entry; | |
1da177e4 | 132 | prop->expr = expr; |
f77850d3 | 133 | prop->visible.expr = dep; |
1da177e4 LT |
134 | |
135 | if (prompt) { | |
f001f7f8 RZ |
136 | if (isspace(*prompt)) { |
137 | prop_warn(prop, "leading whitespace ignored"); | |
138 | while (isspace(*prompt)) | |
139 | prompt++; | |
140 | } | |
ba6ff60d | 141 | if (current_entry->prompt && current_entry != &rootmenu) |
f001f7f8 | 142 | prop_warn(prop, "prompt redefined"); |
7ad12278 JB |
143 | |
144 | /* Apply all upper menus' visibilities to actual prompts. */ | |
145 | if(type == P_PROMPT) { | |
146 | struct menu *menu = current_entry; | |
147 | ||
148 | while ((menu = menu->parent) != NULL) { | |
e983b7b1 DG |
149 | struct expr *dup_expr; |
150 | ||
7ad12278 JB |
151 | if (!menu->visibility) |
152 | continue; | |
e983b7b1 DG |
153 | /* |
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. | |
161 | */ | |
162 | dup_expr = expr_copy(menu->visibility); | |
163 | ||
7ad12278 JB |
164 | prop->visible.expr |
165 | = expr_alloc_and(prop->visible.expr, | |
e983b7b1 | 166 | dup_expr); |
7ad12278 JB |
167 | } |
168 | } | |
169 | ||
1da177e4 LT |
170 | current_entry->prompt = prop; |
171 | } | |
f001f7f8 | 172 | prop->text = prompt; |
1da177e4 LT |
173 | |
174 | return prop; | |
175 | } | |
176 | ||
fb7f6ff6 | 177 | struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep) |
1da177e4 | 178 | { |
fb7f6ff6 | 179 | return menu_add_prop(type, prompt, NULL, dep); |
1da177e4 LT |
180 | } |
181 | ||
86e187ff AL |
182 | void menu_add_visibility(struct expr *expr) |
183 | { | |
184 | current_entry->visibility = expr_alloc_and(current_entry->visibility, | |
185 | expr); | |
186 | } | |
187 | ||
1da177e4 LT |
188 | void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep) |
189 | { | |
190 | menu_add_prop(type, NULL, expr, dep); | |
191 | } | |
192 | ||
193 | void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep) | |
194 | { | |
195 | menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep); | |
196 | } | |
197 | ||
f6a88aa8 RZ |
198 | void menu_add_option(int token, char *arg) |
199 | { | |
face4374 RZ |
200 | switch (token) { |
201 | case T_OPT_MODULES: | |
e0627813 YM |
202 | if (modules_sym) |
203 | zconf_error("symbol '%s' redefines option 'modules'" | |
204 | " already defined by symbol '%s'", | |
205 | current_entry->sym->name, | |
206 | modules_sym->name | |
207 | ); | |
6902dccf | 208 | modules_sym = current_entry->sym; |
face4374 RZ |
209 | break; |
210 | case T_OPT_DEFCONFIG_LIST: | |
211 | if (!sym_defconfig_list) | |
212 | sym_defconfig_list = current_entry->sym; | |
213 | else if (sym_defconfig_list != current_entry->sym) | |
214 | zconf_error("trying to redefine defconfig symbol"); | |
f4bc1eef | 215 | sym_defconfig_list->flags |= SYMBOL_AUTO; |
face4374 | 216 | break; |
93449082 RZ |
217 | case T_OPT_ENV: |
218 | prop_add_env(arg); | |
219 | break; | |
5d2acfc7 JT |
220 | case T_OPT_ALLNOCONFIG_Y: |
221 | current_entry->sym->flags |= SYMBOL_ALLNOCONFIG_Y; | |
222 | break; | |
face4374 | 223 | } |
f6a88aa8 RZ |
224 | } |
225 | ||
ab60bd0b | 226 | static int menu_validate_number(struct symbol *sym, struct symbol *sym2) |
4cf3cbe2 RZ |
227 | { |
228 | return sym2->type == S_INT || sym2->type == S_HEX || | |
229 | (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name)); | |
230 | } | |
231 | ||
4356f489 | 232 | static void sym_check_prop(struct symbol *sym) |
1da177e4 LT |
233 | { |
234 | struct property *prop; | |
235 | struct symbol *sym2; | |
237e3ad0 NP |
236 | char *use; |
237 | ||
1da177e4 LT |
238 | for (prop = sym->prop; prop; prop = prop->next) { |
239 | switch (prop->type) { | |
240 | case P_DEFAULT: | |
241 | if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) && | |
242 | prop->expr->type != E_SYMBOL) | |
243 | prop_warn(prop, | |
4280eae0 | 244 | "default for config symbol '%s'" |
1da177e4 | 245 | " must be a single symbol", sym->name); |
ab60bd0b AL |
246 | if (prop->expr->type != E_SYMBOL) |
247 | break; | |
248 | sym2 = prop_get_symbol(prop); | |
249 | if (sym->type == S_HEX || sym->type == S_INT) { | |
250 | if (!menu_validate_number(sym, sym2)) | |
251 | prop_warn(prop, | |
252 | "'%s': number is invalid", | |
253 | sym->name); | |
254 | } | |
2c37e084 UM |
255 | if (sym_is_choice(sym)) { |
256 | struct property *choice_prop = | |
257 | sym_get_choice_prop(sym2); | |
258 | ||
259 | if (!choice_prop || | |
260 | prop_get_symbol(choice_prop) != sym) | |
261 | prop_warn(prop, | |
262 | "choice default symbol '%s' is not contained in the choice", | |
263 | sym2->name); | |
264 | } | |
1da177e4 LT |
265 | break; |
266 | case P_SELECT: | |
237e3ad0 NP |
267 | case P_IMPLY: |
268 | use = prop->type == P_SELECT ? "select" : "imply"; | |
1da177e4 LT |
269 | sym2 = prop_get_symbol(prop); |
270 | if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE) | |
271 | prop_warn(prop, | |
237e3ad0 | 272 | "config symbol '%s' uses %s, but is " |
b92d804a | 273 | "not bool or tristate", sym->name, use); |
603d4988 | 274 | else if (sym2->type != S_UNKNOWN && |
bb66fc67 MY |
275 | sym2->type != S_BOOLEAN && |
276 | sym2->type != S_TRISTATE) | |
1da177e4 | 277 | prop_warn(prop, |
237e3ad0 | 278 | "'%s' has wrong type. '%s' only " |
b92d804a | 279 | "accept arguments of bool and " |
237e3ad0 | 280 | "tristate type", sym2->name, use); |
1da177e4 LT |
281 | break; |
282 | case P_RANGE: | |
283 | if (sym->type != S_INT && sym->type != S_HEX) | |
284 | prop_warn(prop, "range is only allowed " | |
bb66fc67 | 285 | "for int or hex symbols"); |
ab60bd0b AL |
286 | if (!menu_validate_number(sym, prop->expr->left.sym) || |
287 | !menu_validate_number(sym, prop->expr->right.sym)) | |
1da177e4 LT |
288 | prop_warn(prop, "range is invalid"); |
289 | break; | |
290 | default: | |
291 | ; | |
292 | } | |
293 | } | |
294 | } | |
295 | ||
296 | void menu_finalize(struct menu *parent) | |
297 | { | |
298 | struct menu *menu, *last_menu; | |
299 | struct symbol *sym; | |
300 | struct property *prop; | |
301 | struct expr *parentdep, *basedep, *dep, *dep2, **ep; | |
302 | ||
303 | sym = parent->sym; | |
304 | if (parent->list) { | |
fa8cedae UM |
305 | /* |
306 | * This menu node has children. We (recursively) process them | |
307 | * and propagate parent dependencies before moving on. | |
308 | */ | |
309 | ||
1da177e4 | 310 | if (sym && sym_is_choice(sym)) { |
5a1aa8a1 RZ |
311 | if (sym->type == S_UNKNOWN) { |
312 | /* find the first choice value to find out choice type */ | |
313 | current_entry = parent; | |
314 | for (menu = parent->list; menu; menu = menu->next) { | |
315 | if (menu->sym && menu->sym->type != S_UNKNOWN) { | |
f5eaa323 | 316 | menu_set_type(menu->sym->type); |
5a1aa8a1 RZ |
317 | break; |
318 | } | |
1da177e4 LT |
319 | } |
320 | } | |
5a1aa8a1 RZ |
321 | /* set the type of the remaining choice values */ |
322 | for (menu = parent->list; menu; menu = menu->next) { | |
323 | current_entry = menu; | |
324 | if (menu->sym && menu->sym->type == S_UNKNOWN) | |
325 | menu_set_type(sym->type); | |
326 | } | |
d3465af6 UM |
327 | |
328 | /* | |
329 | * Use the choice itself as the parent dependency of | |
330 | * the contained items. This turns the mode of the | |
331 | * choice into an upper bound on the visibility of the | |
332 | * choice value symbols. | |
333 | */ | |
1da177e4 LT |
334 | parentdep = expr_alloc_symbol(sym); |
335 | } else if (parent->prompt) | |
b5368801 | 336 | /* Menu node for 'menu' */ |
1da177e4 LT |
337 | parentdep = parent->prompt->visible.expr; |
338 | else | |
b5368801 | 339 | /* Menu node for 'if' */ |
1da177e4 LT |
340 | parentdep = parent->dep; |
341 | ||
fa8cedae | 342 | /* For each child menu node... */ |
1da177e4 | 343 | for (menu = parent->list; menu; menu = menu->next) { |
fa8cedae UM |
344 | /* |
345 | * Propagate parent dependencies to the child menu | |
346 | * node, also rewriting and simplifying expressions | |
347 | */ | |
f77850d3 UM |
348 | basedep = rewrite_m(menu->dep); |
349 | basedep = expr_transform(basedep); | |
e8b8c977 | 350 | basedep = expr_alloc_and(expr_copy(parentdep), basedep); |
1da177e4 LT |
351 | basedep = expr_eliminate_dups(basedep); |
352 | menu->dep = basedep; | |
fa8cedae | 353 | |
1da177e4 | 354 | if (menu->sym) |
fa8cedae UM |
355 | /* |
356 | * Note: For symbols, all prompts are included | |
357 | * too in the symbol's own property list | |
358 | */ | |
1da177e4 LT |
359 | prop = menu->sym->prop; |
360 | else | |
fa8cedae UM |
361 | /* |
362 | * For non-symbol menu nodes, we just need to | |
363 | * handle the prompt | |
364 | */ | |
1da177e4 | 365 | prop = menu->prompt; |
fa8cedae UM |
366 | |
367 | /* For each property... */ | |
1da177e4 LT |
368 | for (; prop; prop = prop->next) { |
369 | if (prop->menu != menu) | |
fa8cedae UM |
370 | /* |
371 | * Two possibilities: | |
372 | * | |
373 | * 1. The property lacks dependencies | |
374 | * and so isn't location-specific, | |
375 | * e.g. an 'option' | |
376 | * | |
377 | * 2. The property belongs to a symbol | |
378 | * defined in multiple locations and | |
379 | * is from some other location. It | |
380 | * will be handled there in that | |
381 | * case. | |
382 | * | |
383 | * Skip the property. | |
384 | */ | |
1da177e4 | 385 | continue; |
fa8cedae UM |
386 | |
387 | /* | |
388 | * Propagate parent dependencies to the | |
389 | * property's condition, rewriting and | |
390 | * simplifying expressions at the same time | |
391 | */ | |
f77850d3 UM |
392 | dep = rewrite_m(prop->visible.expr); |
393 | dep = expr_transform(dep); | |
1da177e4 LT |
394 | dep = expr_alloc_and(expr_copy(basedep), dep); |
395 | dep = expr_eliminate_dups(dep); | |
396 | if (menu->sym && menu->sym->type != S_TRISTATE) | |
397 | dep = expr_trans_bool(dep); | |
398 | prop->visible.expr = dep; | |
fa8cedae UM |
399 | |
400 | /* | |
401 | * Handle selects and implies, which modify the | |
402 | * dependencies of the selected/implied symbol | |
403 | */ | |
1da177e4 LT |
404 | if (prop->type == P_SELECT) { |
405 | struct symbol *es = prop_get_symbol(prop); | |
406 | es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr, | |
407 | expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep))); | |
237e3ad0 NP |
408 | } else if (prop->type == P_IMPLY) { |
409 | struct symbol *es = prop_get_symbol(prop); | |
410 | es->implied.expr = expr_alloc_or(es->implied.expr, | |
411 | expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep))); | |
1da177e4 LT |
412 | } |
413 | } | |
414 | } | |
fa8cedae | 415 | |
7cf33f88 UM |
416 | if (sym && sym_is_choice(sym)) |
417 | expr_free(parentdep); | |
418 | ||
fa8cedae UM |
419 | /* |
420 | * Recursively process children in the same fashion before | |
421 | * moving on | |
422 | */ | |
1da177e4 LT |
423 | for (menu = parent->list; menu; menu = menu->next) |
424 | menu_finalize(menu); | |
425 | } else if (sym) { | |
05cccce5 UM |
426 | /* |
427 | * Automatic submenu creation. If sym is a symbol and A, B, C, | |
428 | * ... are consecutive items (symbols, menus, ifs, etc.) that | |
429 | * all depend on sym, then the following menu structure is | |
430 | * created: | |
431 | * | |
432 | * sym | |
433 | * +-A | |
434 | * +-B | |
435 | * +-C | |
436 | * ... | |
437 | * | |
438 | * This also works recursively, giving the following structure | |
439 | * if A is a symbol and B depends on A: | |
440 | * | |
441 | * sym | |
442 | * +-A | |
443 | * | +-B | |
444 | * +-C | |
445 | * ... | |
446 | */ | |
447 | ||
1da177e4 LT |
448 | basedep = parent->prompt ? parent->prompt->visible.expr : NULL; |
449 | basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no); | |
450 | basedep = expr_eliminate_dups(expr_transform(basedep)); | |
05cccce5 UM |
451 | |
452 | /* Examine consecutive elements after sym */ | |
1da177e4 LT |
453 | last_menu = NULL; |
454 | for (menu = parent->next; menu; menu = menu->next) { | |
455 | dep = menu->prompt ? menu->prompt->visible.expr : menu->dep; | |
456 | if (!expr_contains_symbol(dep, sym)) | |
05cccce5 | 457 | /* No dependency, quit */ |
1da177e4 LT |
458 | break; |
459 | if (expr_depends_symbol(dep, sym)) | |
05cccce5 | 460 | /* Absolute dependency, put in submenu */ |
1da177e4 | 461 | goto next; |
05cccce5 UM |
462 | |
463 | /* | |
464 | * Also consider it a dependency on sym if our | |
465 | * dependencies contain sym and are a "superset" of | |
466 | * sym's dependencies, e.g. '(sym || Q) && R' when sym | |
467 | * depends on R. | |
468 | * | |
469 | * Note that 'R' might be from an enclosing menu or if, | |
470 | * making this a more common case than it might seem. | |
471 | */ | |
1da177e4 LT |
472 | dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no); |
473 | dep = expr_eliminate_dups(expr_transform(dep)); | |
474 | dep2 = expr_copy(basedep); | |
475 | expr_eliminate_eq(&dep, &dep2); | |
476 | expr_free(dep); | |
477 | if (!expr_is_yes(dep2)) { | |
05cccce5 | 478 | /* Not superset, quit */ |
1da177e4 LT |
479 | expr_free(dep2); |
480 | break; | |
481 | } | |
05cccce5 | 482 | /* Superset, put in submenu */ |
1da177e4 LT |
483 | expr_free(dep2); |
484 | next: | |
485 | menu_finalize(menu); | |
486 | menu->parent = parent; | |
487 | last_menu = menu; | |
488 | } | |
ae7440ef | 489 | expr_free(basedep); |
1da177e4 LT |
490 | if (last_menu) { |
491 | parent->list = parent->next; | |
492 | parent->next = last_menu->next; | |
493 | last_menu->next = NULL; | |
494 | } | |
ff5ff606 | 495 | |
ec6452a5 | 496 | sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep); |
1da177e4 LT |
497 | } |
498 | for (menu = parent->list; menu; menu = menu->next) { | |
5a1aa8a1 RZ |
499 | if (sym && sym_is_choice(sym) && |
500 | menu->sym && !sym_is_choice_value(menu->sym)) { | |
501 | current_entry = menu; | |
1da177e4 LT |
502 | menu->sym->flags |= SYMBOL_CHOICEVAL; |
503 | if (!menu->prompt) | |
504 | menu_warn(menu, "choice value must have a prompt"); | |
505 | for (prop = menu->sym->prop; prop; prop = prop->next) { | |
1da177e4 LT |
506 | if (prop->type == P_DEFAULT) |
507 | prop_warn(prop, "defaults for choice " | |
5a1aa8a1 RZ |
508 | "values not supported"); |
509 | if (prop->menu == menu) | |
510 | continue; | |
511 | if (prop->type == P_PROMPT && | |
512 | prop->menu->parent->sym != sym) | |
513 | prop_warn(prop, "choice value used outside its choice group"); | |
1da177e4 | 514 | } |
f5eaa323 JB |
515 | /* Non-tristate choice values of tristate choices must |
516 | * depend on the choice being set to Y. The choice | |
517 | * values' dependencies were propagated to their | |
518 | * properties above, so the change here must be re- | |
5a1aa8a1 RZ |
519 | * propagated. |
520 | */ | |
f5eaa323 JB |
521 | if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) { |
522 | basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes); | |
5a1aa8a1 | 523 | menu->dep = expr_alloc_and(basedep, menu->dep); |
f5eaa323 JB |
524 | for (prop = menu->sym->prop; prop; prop = prop->next) { |
525 | if (prop->menu != menu) | |
526 | continue; | |
5a1aa8a1 RZ |
527 | prop->visible.expr = expr_alloc_and(expr_copy(basedep), |
528 | prop->visible.expr); | |
f5eaa323 JB |
529 | } |
530 | } | |
1da177e4 LT |
531 | menu_add_symbol(P_CHOICE, sym, NULL); |
532 | prop = sym_get_choice_prop(sym); | |
533 | for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr) | |
534 | ; | |
7a962923 | 535 | *ep = expr_alloc_one(E_LIST, NULL); |
1da177e4 LT |
536 | (*ep)->right.sym = menu->sym; |
537 | } | |
9d1a9e8b UM |
538 | |
539 | /* | |
540 | * This code serves two purposes: | |
541 | * | |
542 | * (1) Flattening 'if' blocks, which do not specify a submenu | |
543 | * and only add dependencies. | |
544 | * | |
545 | * (Automatic submenu creation might still create a submenu | |
546 | * from an 'if' before this code runs.) | |
547 | * | |
548 | * (2) "Undoing" any automatic submenus created earlier below | |
549 | * promptless symbols. | |
550 | * | |
551 | * Before: | |
552 | * | |
553 | * A | |
554 | * if ... (or promptless symbol) | |
555 | * +-B | |
556 | * +-C | |
557 | * D | |
558 | * | |
559 | * After: | |
560 | * | |
561 | * A | |
562 | * if ... (or promptless symbol) | |
563 | * B | |
564 | * C | |
565 | * D | |
566 | */ | |
1da177e4 LT |
567 | if (menu->list && (!menu->prompt || !menu->prompt->text)) { |
568 | for (last_menu = menu->list; ; last_menu = last_menu->next) { | |
569 | last_menu->parent = parent; | |
570 | if (!last_menu->next) | |
571 | break; | |
572 | } | |
573 | last_menu->next = menu->next; | |
574 | menu->next = menu->list; | |
575 | menu->list = NULL; | |
576 | } | |
577 | } | |
578 | ||
579 | if (sym && !(sym->flags & SYMBOL_WARNED)) { | |
580 | if (sym->type == S_UNKNOWN) | |
f001f7f8 | 581 | menu_warn(parent, "config symbol defined without type"); |
1da177e4 LT |
582 | |
583 | if (sym_is_choice(sym) && !parent->prompt) | |
f001f7f8 | 584 | menu_warn(parent, "choice must have a prompt"); |
1da177e4 LT |
585 | |
586 | /* Check properties connected to this symbol */ | |
587 | sym_check_prop(sym); | |
588 | sym->flags |= SYMBOL_WARNED; | |
589 | } | |
590 | ||
3e41ba05 UM |
591 | /* |
592 | * For non-optional choices, add a reverse dependency (corresponding to | |
593 | * a select) of '<visibility> && m'. This prevents the user from | |
594 | * setting the choice mode to 'n' when the choice is visible. | |
595 | * | |
596 | * This would also work for non-choice symbols, but only non-optional | |
597 | * choices clear SYMBOL_OPTIONAL as of writing. Choices are implemented | |
598 | * as a type of symbol. | |
599 | */ | |
1da177e4 LT |
600 | if (sym && !sym_is_optional(sym) && parent->prompt) { |
601 | sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr, | |
602 | expr_alloc_and(parent->prompt->visible.expr, | |
603 | expr_alloc_symbol(&symbol_mod))); | |
604 | } | |
605 | } | |
606 | ||
22c7eca6 LZ |
607 | bool menu_has_prompt(struct menu *menu) |
608 | { | |
609 | if (!menu->prompt) | |
610 | return false; | |
611 | return true; | |
612 | } | |
613 | ||
1278ebdb DG |
614 | /* |
615 | * Determine if a menu is empty. | |
616 | * A menu is considered empty if it contains no or only | |
617 | * invisible entries. | |
618 | */ | |
619 | bool menu_is_empty(struct menu *menu) | |
620 | { | |
621 | struct menu *child; | |
622 | ||
623 | for (child = menu->list; child; child = child->next) { | |
624 | if (menu_is_visible(child)) | |
625 | return(false); | |
626 | } | |
627 | return(true); | |
628 | } | |
629 | ||
1da177e4 LT |
630 | bool menu_is_visible(struct menu *menu) |
631 | { | |
632 | struct menu *child; | |
633 | struct symbol *sym; | |
634 | tristate visible; | |
635 | ||
636 | if (!menu->prompt) | |
637 | return false; | |
22c7eca6 | 638 | |
86e187ff AL |
639 | if (menu->visibility) { |
640 | if (expr_calc_value(menu->visibility) == no) | |
aab24a89 | 641 | return false; |
86e187ff AL |
642 | } |
643 | ||
1da177e4 LT |
644 | sym = menu->sym; |
645 | if (sym) { | |
646 | sym_calc_value(sym); | |
647 | visible = menu->prompt->visible.tri; | |
648 | } else | |
649 | visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr); | |
650 | ||
651 | if (visible != no) | |
652 | return true; | |
22c7eca6 | 653 | |
1da177e4 LT |
654 | if (!sym || sym_get_tristate_value(menu->sym) == no) |
655 | return false; | |
656 | ||
3fb9acb3 LZ |
657 | for (child = menu->list; child; child = child->next) { |
658 | if (menu_is_visible(child)) { | |
659 | if (sym) | |
660 | sym->flags |= SYMBOL_DEF_USER; | |
1da177e4 | 661 | return true; |
3fb9acb3 LZ |
662 | } |
663 | } | |
22c7eca6 | 664 | |
1da177e4 LT |
665 | return false; |
666 | } | |
667 | ||
668 | const char *menu_get_prompt(struct menu *menu) | |
669 | { | |
670 | if (menu->prompt) | |
01771b0f | 671 | return menu->prompt->text; |
1da177e4 | 672 | else if (menu->sym) |
01771b0f | 673 | return menu->sym->name; |
1da177e4 LT |
674 | return NULL; |
675 | } | |
676 | ||
677 | struct menu *menu_get_root_menu(struct menu *menu) | |
678 | { | |
679 | return &rootmenu; | |
680 | } | |
681 | ||
682 | struct menu *menu_get_parent_menu(struct menu *menu) | |
683 | { | |
684 | enum prop_type type; | |
685 | ||
686 | for (; menu != &rootmenu; menu = menu->parent) { | |
687 | type = menu->prompt ? menu->prompt->type : 0; | |
688 | if (type == P_MENU) | |
689 | break; | |
690 | } | |
691 | return menu; | |
692 | } | |
693 | ||
03d29122 SR |
694 | bool menu_has_help(struct menu *menu) |
695 | { | |
696 | return menu->help != NULL; | |
697 | } | |
698 | ||
699 | const char *menu_get_help(struct menu *menu) | |
700 | { | |
701 | if (menu->help) | |
702 | return menu->help; | |
703 | else | |
704 | return ""; | |
705 | } | |
6bd5999d | 706 | |
95ac9b3b | 707 | static void get_prompt_str(struct gstr *r, struct property *prop, |
bad9955d | 708 | struct list_head *head) |
6bd5999d CR |
709 | { |
710 | int i, j; | |
5e609add | 711 | struct menu *submenu[8], *menu, *location = NULL; |
2d560306 | 712 | struct jump_key *jump = NULL; |
6bd5999d CR |
713 | |
714 | str_printf(r, _("Prompt: %s\n"), _(prop->text)); | |
6bd5999d | 715 | menu = prop->menu->parent; |
5e609add BP |
716 | for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) { |
717 | bool accessible = menu_is_visible(menu); | |
718 | ||
6bd5999d | 719 | submenu[i++] = menu; |
5e609add BP |
720 | if (location == NULL && accessible) |
721 | location = menu; | |
722 | } | |
95ac9b3b | 723 | if (head && location) { |
177acf78 | 724 | jump = xmalloc(sizeof(struct jump_key)); |
95ac9b3b | 725 | |
5e609add BP |
726 | if (menu_is_visible(prop->menu)) { |
727 | /* | |
728 | * There is not enough room to put the hint at the | |
729 | * beginning of the "Prompt" line. Put the hint on the | |
730 | * last "Location" line even when it would belong on | |
731 | * the former. | |
732 | */ | |
95ac9b3b | 733 | jump->target = prop->menu; |
5e609add | 734 | } else |
95ac9b3b BP |
735 | jump->target = location; |
736 | ||
bad9955d | 737 | if (list_empty(head)) |
95ac9b3b BP |
738 | jump->index = 0; |
739 | else | |
bad9955d BP |
740 | jump->index = list_entry(head->prev, struct jump_key, |
741 | entries)->index + 1; | |
95ac9b3b | 742 | |
bad9955d | 743 | list_add_tail(&jump->entries, head); |
95ac9b3b | 744 | } |
5e609add | 745 | |
6bd5999d CR |
746 | if (i > 0) { |
747 | str_printf(r, _(" Location:\n")); | |
95ac9b3b | 748 | for (j = 4; --i >= 0; j += 2) { |
6bd5999d | 749 | menu = submenu[i]; |
2d560306 | 750 | if (jump && menu == location) |
503c8230 | 751 | jump->offset = strlen(r->s); |
95ac9b3b BP |
752 | str_printf(r, "%*c-> %s", j, ' ', |
753 | _(menu_get_prompt(menu))); | |
6bd5999d CR |
754 | if (menu->sym) { |
755 | str_printf(r, " (%s [=%s])", menu->sym->name ? | |
756 | menu->sym->name : _("<choice>"), | |
757 | sym_get_string_value(menu->sym)); | |
758 | } | |
759 | str_append(r, "\n"); | |
760 | } | |
761 | } | |
762 | } | |
763 | ||
bcdedcc1 | 764 | /* |
8d9dfe82 | 765 | * get property of type P_SYMBOL |
bcdedcc1 W |
766 | */ |
767 | static struct property *get_symbol_prop(struct symbol *sym) | |
768 | { | |
769 | struct property *prop = NULL; | |
770 | ||
771 | for_all_properties(sym, prop, P_SYMBOL) | |
772 | break; | |
773 | return prop; | |
774 | } | |
775 | ||
237e3ad0 NP |
776 | static void get_symbol_props_str(struct gstr *r, struct symbol *sym, |
777 | enum prop_type tok, const char *prefix) | |
778 | { | |
779 | bool hit = false; | |
780 | struct property *prop; | |
781 | ||
782 | for_all_properties(sym, prop, tok) { | |
783 | if (!hit) { | |
784 | str_append(r, prefix); | |
785 | hit = true; | |
786 | } else | |
787 | str_printf(r, " && "); | |
788 | expr_gstr_print(prop->expr, r); | |
789 | } | |
790 | if (hit) | |
791 | str_append(r, "\n"); | |
792 | } | |
793 | ||
5e609add | 794 | /* |
95ac9b3b | 795 | * head is optional and may be NULL |
5e609add | 796 | */ |
ad8d40cd | 797 | static void get_symbol_str(struct gstr *r, struct symbol *sym, |
bad9955d | 798 | struct list_head *head) |
6bd5999d | 799 | { |
6bd5999d CR |
800 | struct property *prop; |
801 | ||
b040b44c | 802 | if (sym && sym->name) { |
6bd5999d CR |
803 | str_printf(r, "Symbol: %s [=%s]\n", sym->name, |
804 | sym_get_string_value(sym)); | |
b040b44c | 805 | str_printf(r, "Type : %s\n", sym_type_name(sym->type)); |
70ed0747 LZ |
806 | if (sym->type == S_INT || sym->type == S_HEX) { |
807 | prop = sym_get_range_prop(sym); | |
808 | if (prop) { | |
809 | str_printf(r, "Range : "); | |
810 | expr_gstr_print(prop->expr, r); | |
811 | str_append(r, "\n"); | |
812 | } | |
813 | } | |
b040b44c | 814 | } |
6bd5999d | 815 | for_all_prompts(sym, prop) |
95ac9b3b | 816 | get_prompt_str(r, prop, head); |
383da76f | 817 | |
bcdedcc1 | 818 | prop = get_symbol_prop(sym); |
383da76f LZ |
819 | if (prop) { |
820 | str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name, | |
821 | prop->menu->lineno); | |
822 | if (!expr_is_yes(prop->visible.expr)) { | |
823 | str_append(r, _(" Depends on: ")); | |
824 | expr_gstr_print(prop->visible.expr, r); | |
825 | str_append(r, "\n"); | |
826 | } | |
bcdedcc1 | 827 | } |
383da76f | 828 | |
237e3ad0 | 829 | get_symbol_props_str(r, sym, P_SELECT, _(" Selects: ")); |
6bd5999d CR |
830 | if (sym->rev_dep.expr) { |
831 | str_append(r, _(" Selected by: ")); | |
1ccb2714 | 832 | expr_gstr_print_revdep(sym->rev_dep.expr, r); |
6bd5999d CR |
833 | str_append(r, "\n"); |
834 | } | |
237e3ad0 NP |
835 | |
836 | get_symbol_props_str(r, sym, P_IMPLY, _(" Implies: ")); | |
837 | if (sym->implied.expr) { | |
838 | str_append(r, _(" Implied by: ")); | |
1ccb2714 | 839 | expr_gstr_print_revdep(sym->implied.expr, r); |
237e3ad0 NP |
840 | str_append(r, "\n"); |
841 | } | |
842 | ||
6bd5999d CR |
843 | str_append(r, "\n\n"); |
844 | } | |
845 | ||
bad9955d | 846 | struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head) |
692d97c3 | 847 | { |
848 | struct symbol *sym; | |
849 | struct gstr res = str_new(); | |
95ac9b3b | 850 | int i; |
692d97c3 | 851 | |
852 | for (i = 0; sym_arr && (sym = sym_arr[i]); i++) | |
95ac9b3b | 853 | get_symbol_str(&res, sym, head); |
692d97c3 | 854 | if (!i) |
855 | str_append(&res, _("No matches found.\n")); | |
856 | return res; | |
857 | } | |
858 | ||
859 | ||
6bd5999d CR |
860 | void menu_get_ext_help(struct menu *menu, struct gstr *help) |
861 | { | |
862 | struct symbol *sym = menu->sym; | |
57e6292d | 863 | const char *help_text = nohelp_text; |
6bd5999d CR |
864 | |
865 | if (menu_has_help(menu)) { | |
3f198dfe | 866 | if (sym->name) |
ffb5957b | 867 | str_printf(help, "%s%s:\n\n", CONFIG_, sym->name); |
57e6292d | 868 | help_text = menu_get_help(menu); |
6bd5999d | 869 | } |
57e6292d | 870 | str_printf(help, "%s\n", _(help_text)); |
4779105e | 871 | if (sym) |
95ac9b3b | 872 | get_symbol_str(help, sym, NULL); |
6bd5999d | 873 | } |