1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2002 Roman Zippel <[email protected]> 4 */ 5 %{ 6 7 #include <ctype.h> 8 #include <stdarg.h> 9 #include <stdio.h> 10 #include <stdlib.h> 11 #include <string.h> 12 #include <stdbool.h> 13 14 #include "lkc.h" 15 #include "internal.h" 16 #include "preprocess.h" 17 18 #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt) 19 20 #define PRINTD 0x0001 21 #define DEBUG_PARSE 0x0002 22 23 int cdebug = PRINTD; 24 25 static void yyerror(const char *err); 26 static void zconfprint(const char *err, ...); 27 static void zconf_error(const char *err, ...); 28 static bool zconf_endtoken(const char *tokenname, 29 const char *expected_tokenname); 30 31 struct menu *current_menu, *current_entry, *current_choice; 32 33 %} 34 35 %union 36 { 37 char *string; 38 struct symbol *symbol; 39 struct expr *expr; 40 struct menu *menu; 41 enum symbol_type type; 42 enum variable_flavor flavor; 43 } 44 45 %token <string> T_HELPTEXT 46 %token <string> T_WORD 47 %token <string> T_WORD_QUOTE 48 %token T_BOOL 49 %token T_CHOICE 50 %token T_CLOSE_PAREN 51 %token T_COLON_EQUAL 52 %token T_COMMENT 53 %token T_CONFIG 54 %token T_DEFAULT 55 %token T_DEF_BOOL 56 %token T_DEF_TRISTATE 57 %token T_DEPENDS 58 %token T_ENDCHOICE 59 %token T_ENDIF 60 %token T_ENDMENU 61 %token T_HELP 62 %token T_HEX 63 %token T_IF 64 %token T_IMPLY 65 %token T_INT 66 %token T_MAINMENU 67 %token T_MENU 68 %token T_MENUCONFIG 69 %token T_MODULES 70 %token T_ON 71 %token T_OPEN_PAREN 72 %token T_PLUS_EQUAL 73 %token T_PROMPT 74 %token T_RANGE 75 %token T_SELECT 76 %token T_SOURCE 77 %token T_STRING 78 %token T_TRISTATE 79 %token T_VISIBLE 80 %token T_EOL 81 %token <string> T_ASSIGN_VAL 82 83 %left T_OR 84 %left T_AND 85 %left T_EQUAL T_UNEQUAL 86 %left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL 87 %nonassoc T_NOT 88 89 %type <symbol> nonconst_symbol 90 %type <symbol> symbol 91 %type <type> type default 92 %type <expr> expr 93 %type <expr> if_expr 94 %type <string> end 95 %type <menu> if_entry menu_entry choice_entry 96 %type <string> assign_val 97 %type <flavor> assign_op 98 99 %destructor { 100 fprintf(stderr, "%s:%d: missing end statement for this entry\n", 101 $$->filename, $$->lineno); 102 if (current_menu == $$) 103 menu_end_menu(); 104 } if_entry menu_entry choice_entry 105 106 %% 107 input: mainmenu_stmt stmt_list | stmt_list; 108 109 /* mainmenu entry */ 110 111 mainmenu_stmt: T_MAINMENU T_WORD_QUOTE T_EOL 112 { 113 menu_add_prompt(P_MENU, $2, NULL); 114 }; 115 116 stmt_list: 117 /* empty */ 118 | stmt_list assignment_stmt 119 | stmt_list choice_stmt 120 | stmt_list comment_stmt 121 | stmt_list config_stmt 122 | stmt_list if_stmt 123 | stmt_list menu_stmt 124 | stmt_list menuconfig_stmt 125 | stmt_list source_stmt 126 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); } 127 | stmt_list error T_EOL { zconf_error("invalid statement"); } 128 ; 129 130 stmt_list_in_choice: 131 /* empty */ 132 | stmt_list_in_choice comment_stmt 133 | stmt_list_in_choice config_stmt 134 | stmt_list_in_choice if_stmt_in_choice 135 | stmt_list_in_choice error T_EOL { zconf_error("invalid statement"); } 136 ; 137 138 /* config/menuconfig entry */ 139 140 config_entry_start: T_CONFIG nonconst_symbol T_EOL 141 { 142 menu_add_entry($2); 143 printd(DEBUG_PARSE, "%s:%d:config %s\n", cur_filename, cur_lineno, $2->name); 144 }; 145 146 config_stmt: config_entry_start config_option_list 147 { 148 if (current_choice) { 149 if (!current_entry->prompt) { 150 fprintf(stderr, "%s:%d: error: choice member must have a prompt\n", 151 current_entry->filename, current_entry->lineno); 152 yynerrs++; 153 } 154 155 if (current_entry->sym->type != S_BOOLEAN) { 156 fprintf(stderr, "%s:%d: error: choice member must be bool\n", 157 current_entry->filename, current_entry->lineno); 158 yynerrs++; 159 } 160 161 list_add_tail(¤t_entry->sym->choice_link, 162 ¤t_choice->choice_members); 163 } 164 165 printd(DEBUG_PARSE, "%s:%d:endconfig\n", cur_filename, cur_lineno); 166 }; 167 168 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL 169 { 170 menu_add_entry($2); 171 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", cur_filename, cur_lineno, $2->name); 172 }; 173 174 menuconfig_stmt: menuconfig_entry_start config_option_list 175 { 176 if (current_entry->prompt) 177 current_entry->prompt->type = P_MENU; 178 else 179 zconfprint("warning: menuconfig statement without prompt"); 180 printd(DEBUG_PARSE, "%s:%d:endconfig\n", cur_filename, cur_lineno); 181 }; 182 183 config_option_list: 184 /* empty */ 185 | config_option_list config_option 186 | config_option_list depends 187 | config_option_list help 188 ; 189 190 config_option: type prompt_stmt_opt T_EOL 191 { 192 menu_set_type($1); 193 printd(DEBUG_PARSE, "%s:%d:type(%u)\n", cur_filename, cur_lineno, $1); 194 }; 195 196 config_option: T_PROMPT T_WORD_QUOTE if_expr T_EOL 197 { 198 menu_add_prompt(P_PROMPT, $2, $3); 199 printd(DEBUG_PARSE, "%s:%d:prompt\n", cur_filename, cur_lineno); 200 }; 201 202 config_option: default expr if_expr T_EOL 203 { 204 menu_add_expr(P_DEFAULT, $2, $3); 205 if ($1 != S_UNKNOWN) 206 menu_set_type($1); 207 printd(DEBUG_PARSE, "%s:%d:default(%u)\n", cur_filename, cur_lineno, 208 $1); 209 }; 210 211 config_option: T_SELECT nonconst_symbol if_expr T_EOL 212 { 213 menu_add_symbol(P_SELECT, $2, $3); 214 printd(DEBUG_PARSE, "%s:%d:select\n", cur_filename, cur_lineno); 215 }; 216 217 config_option: T_IMPLY nonconst_symbol if_expr T_EOL 218 { 219 menu_add_symbol(P_IMPLY, $2, $3); 220 printd(DEBUG_PARSE, "%s:%d:imply\n", cur_filename, cur_lineno); 221 }; 222 223 config_option: T_RANGE symbol symbol if_expr T_EOL 224 { 225 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4); 226 printd(DEBUG_PARSE, "%s:%d:range\n", cur_filename, cur_lineno); 227 }; 228 229 config_option: T_MODULES T_EOL 230 { 231 if (modules_sym) 232 zconf_error("symbol '%s' redefines option 'modules' already defined by symbol '%s'", 233 current_entry->sym->name, modules_sym->name); 234 modules_sym = current_entry->sym; 235 }; 236 237 /* choice entry */ 238 239 choice: T_CHOICE T_EOL 240 { 241 struct symbol *sym = sym_lookup(NULL, 0); 242 243 menu_add_entry(sym); 244 menu_add_expr(P_CHOICE, NULL, NULL); 245 menu_set_type(S_BOOLEAN); 246 INIT_LIST_HEAD(¤t_entry->choice_members); 247 248 printd(DEBUG_PARSE, "%s:%d:choice\n", cur_filename, cur_lineno); 249 }; 250 251 choice_entry: choice choice_option_list 252 { 253 if (!current_entry->prompt) { 254 fprintf(stderr, "%s:%d: error: choice must have a prompt\n", 255 current_entry->filename, current_entry->lineno); 256 yynerrs++; 257 } 258 259 $$ = menu_add_menu(); 260 261 current_choice = current_entry; 262 }; 263 264 choice_end: end 265 { 266 current_choice = NULL; 267 268 if (zconf_endtoken($1, "choice")) { 269 menu_end_menu(); 270 printd(DEBUG_PARSE, "%s:%d:endchoice\n", cur_filename, cur_lineno); 271 } 272 }; 273 274 choice_stmt: choice_entry stmt_list_in_choice choice_end 275 ; 276 277 choice_option_list: 278 /* empty */ 279 | choice_option_list choice_option 280 | choice_option_list depends 281 | choice_option_list help 282 ; 283 284 choice_option: T_PROMPT T_WORD_QUOTE if_expr T_EOL 285 { 286 menu_add_prompt(P_PROMPT, $2, $3); 287 printd(DEBUG_PARSE, "%s:%d:prompt\n", cur_filename, cur_lineno); 288 }; 289 290 choice_option: T_BOOL T_WORD_QUOTE if_expr T_EOL 291 { 292 menu_add_prompt(P_PROMPT, $2, $3); 293 printd(DEBUG_PARSE, "%s:%d:bool\n", cur_filename, cur_lineno); 294 }; 295 296 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL 297 { 298 menu_add_symbol(P_DEFAULT, $2, $3); 299 printd(DEBUG_PARSE, "%s:%d:default\n", cur_filename, cur_lineno); 300 }; 301 302 type: 303 T_BOOL { $$ = S_BOOLEAN; } 304 | T_TRISTATE { $$ = S_TRISTATE; } 305 | T_INT { $$ = S_INT; } 306 | T_HEX { $$ = S_HEX; } 307 | T_STRING { $$ = S_STRING; } 308 309 default: 310 T_DEFAULT { $$ = S_UNKNOWN; } 311 | T_DEF_BOOL { $$ = S_BOOLEAN; } 312 | T_DEF_TRISTATE { $$ = S_TRISTATE; } 313 314 /* if entry */ 315 316 if_entry: T_IF expr T_EOL 317 { 318 printd(DEBUG_PARSE, "%s:%d:if\n", cur_filename, cur_lineno); 319 menu_add_entry(NULL); 320 menu_add_dep($2); 321 $$ = menu_add_menu(); 322 }; 323 324 if_end: end 325 { 326 if (zconf_endtoken($1, "if")) { 327 menu_end_menu(); 328 printd(DEBUG_PARSE, "%s:%d:endif\n", cur_filename, cur_lineno); 329 } 330 }; 331 332 if_stmt: if_entry stmt_list if_end 333 ; 334 335 if_stmt_in_choice: if_entry stmt_list_in_choice if_end 336 ; 337 338 /* menu entry */ 339 340 menu: T_MENU T_WORD_QUOTE T_EOL 341 { 342 menu_add_entry(NULL); 343 menu_add_prompt(P_MENU, $2, NULL); 344 printd(DEBUG_PARSE, "%s:%d:menu\n", cur_filename, cur_lineno); 345 }; 346 347 menu_entry: menu menu_option_list 348 { 349 $$ = menu_add_menu(); 350 }; 351 352 menu_end: end 353 { 354 if (zconf_endtoken($1, "menu")) { 355 menu_end_menu(); 356 printd(DEBUG_PARSE, "%s:%d:endmenu\n", cur_filename, cur_lineno); 357 } 358 }; 359 360 menu_stmt: menu_entry stmt_list menu_end 361 ; 362 363 menu_option_list: 364 /* empty */ 365 | menu_option_list visible 366 | menu_option_list depends 367 ; 368 369 source_stmt: T_SOURCE T_WORD_QUOTE T_EOL 370 { 371 printd(DEBUG_PARSE, "%s:%d:source %s\n", cur_filename, cur_lineno, $2); 372 zconf_nextfile($2); 373 free($2); 374 }; 375 376 /* comment entry */ 377 378 comment: T_COMMENT T_WORD_QUOTE T_EOL 379 { 380 menu_add_entry(NULL); 381 menu_add_prompt(P_COMMENT, $2, NULL); 382 printd(DEBUG_PARSE, "%s:%d:comment\n", cur_filename, cur_lineno); 383 }; 384 385 comment_stmt: comment comment_option_list 386 ; 387 388 comment_option_list: 389 /* empty */ 390 | comment_option_list depends 391 ; 392 393 /* help option */ 394 395 help_start: T_HELP T_EOL 396 { 397 printd(DEBUG_PARSE, "%s:%d:help\n", cur_filename, cur_lineno); 398 zconf_starthelp(); 399 }; 400 401 help: help_start T_HELPTEXT 402 { 403 if (current_entry->help) { 404 free(current_entry->help); 405 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used", 406 current_entry->sym->name ?: "<choice>"); 407 } 408 409 /* Is the help text empty or all whitespace? */ 410 if ($2[strspn($2, " \f\n\r\t\v")] == '\0') 411 zconfprint("warning: '%s' defined with blank help text", 412 current_entry->sym->name ?: "<choice>"); 413 414 current_entry->help = $2; 415 }; 416 417 /* depends option */ 418 419 depends: T_DEPENDS T_ON expr T_EOL 420 { 421 menu_add_dep($3); 422 printd(DEBUG_PARSE, "%s:%d:depends on\n", cur_filename, cur_lineno); 423 }; 424 425 /* visibility option */ 426 visible: T_VISIBLE if_expr T_EOL 427 { 428 menu_add_visibility($2); 429 }; 430 431 /* prompt statement */ 432 433 prompt_stmt_opt: 434 /* empty */ 435 | T_WORD_QUOTE if_expr 436 { 437 menu_add_prompt(P_PROMPT, $1, $2); 438 }; 439 440 end: T_ENDMENU T_EOL { $$ = "menu"; } 441 | T_ENDCHOICE T_EOL { $$ = "choice"; } 442 | T_ENDIF T_EOL { $$ = "if"; } 443 ; 444 445 if_expr: /* empty */ { $$ = NULL; } 446 | T_IF expr { $$ = $2; } 447 ; 448 449 expr: symbol { $$ = expr_alloc_symbol($1); } 450 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); } 451 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); } 452 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); } 453 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); } 454 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); } 455 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); } 456 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; } 457 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); } 458 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); } 459 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); } 460 ; 461 462 /* For symbol definitions, selects, etc., where quotes are not accepted */ 463 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }; 464 465 symbol: nonconst_symbol 466 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); } 467 ; 468 469 /* assignment statement */ 470 471 assignment_stmt: T_WORD assign_op assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); } 472 473 assign_op: 474 T_EQUAL { $$ = VAR_RECURSIVE; } 475 | T_COLON_EQUAL { $$ = VAR_SIMPLE; } 476 | T_PLUS_EQUAL { $$ = VAR_APPEND; } 477 ; 478 479 assign_val: 480 /* empty */ { $$ = xstrdup(""); }; 481 | T_ASSIGN_VAL 482 ; 483 484 %% 485 486 /** 487 * choice_check_sanity - check sanity of a choice member 488 * 489 * @menu: menu of the choice member 490 * 491 * Return: -1 if an error is found, 0 otherwise. 492 */ 493 static int choice_check_sanity(struct menu *menu) 494 { 495 struct property *prop; 496 int ret = 0; 497 498 for (prop = menu->sym->prop; prop; prop = prop->next) { 499 if (prop->type == P_DEFAULT) { 500 fprintf(stderr, "%s:%d: error: %s", 501 prop->filename, prop->lineno, 502 "defaults for choice values not supported\n"); 503 ret = -1; 504 } 505 506 if (prop->menu != menu && prop->type == P_PROMPT && 507 prop->menu->parent != menu->parent) { 508 fprintf(stderr, "%s:%d: error: %s", 509 prop->filename, prop->lineno, 510 "choice value has a prompt outside its choice group\n"); 511 ret = -1; 512 } 513 } 514 515 return ret; 516 } 517 518 void conf_parse(const char *name) 519 { 520 struct menu *menu; 521 522 autoconf_cmd = str_new(); 523 524 str_printf(&autoconf_cmd, "\ndeps_config := \\\n"); 525 526 zconf_initscan(name); 527 528 _menu_init(); 529 530 if (getenv("ZCONF_DEBUG")) 531 yydebug = 1; 532 yyparse(); 533 534 /* 535 * FIXME: 536 * cur_filename and cur_lineno are used even after yyparse(); 537 * menu_finalize() calls menu_add_symbol(). This should be fixed. 538 */ 539 cur_filename = "<none>"; 540 cur_lineno = 0; 541 542 str_printf(&autoconf_cmd, 543 "\n" 544 "$(autoconfig): $(deps_config)\n" 545 "$(deps_config): ;\n"); 546 547 env_write_dep(&autoconf_cmd); 548 549 /* Variables are expanded in the parse phase. We can free them here. */ 550 variable_all_del(); 551 552 if (yynerrs) 553 exit(1); 554 if (!modules_sym) 555 modules_sym = &symbol_no; 556 557 if (!menu_has_prompt(&rootmenu)) { 558 current_entry = &rootmenu; 559 menu_add_prompt(P_MENU, "Main menu", NULL); 560 } 561 562 menu_finalize(); 563 564 menu_for_each_entry(menu) { 565 struct menu *child; 566 567 if (menu->sym && sym_check_deps(menu->sym)) 568 yynerrs++; 569 570 if (menu->sym && sym_is_choice(menu->sym)) { 571 menu_for_each_sub_entry(child, menu) 572 if (child->sym && choice_check_sanity(child)) 573 yynerrs++; 574 } 575 } 576 577 if (yynerrs) 578 exit(1); 579 conf_set_changed(true); 580 } 581 582 static bool zconf_endtoken(const char *tokenname, 583 const char *expected_tokenname) 584 { 585 if (strcmp(tokenname, expected_tokenname)) { 586 zconf_error("unexpected '%s' within %s block", 587 tokenname, expected_tokenname); 588 yynerrs++; 589 return false; 590 } 591 if (strcmp(current_menu->filename, cur_filename)) { 592 zconf_error("'%s' in different file than '%s'", 593 tokenname, expected_tokenname); 594 fprintf(stderr, "%s:%d: location of the '%s'\n", 595 current_menu->filename, current_menu->lineno, 596 expected_tokenname); 597 yynerrs++; 598 return false; 599 } 600 return true; 601 } 602 603 static void zconfprint(const char *err, ...) 604 { 605 va_list ap; 606 607 fprintf(stderr, "%s:%d: ", cur_filename, cur_lineno); 608 va_start(ap, err); 609 vfprintf(stderr, err, ap); 610 va_end(ap); 611 fprintf(stderr, "\n"); 612 } 613 614 static void zconf_error(const char *err, ...) 615 { 616 va_list ap; 617 618 yynerrs++; 619 fprintf(stderr, "%s:%d: ", cur_filename, cur_lineno); 620 va_start(ap, err); 621 vfprintf(stderr, err, ap); 622 va_end(ap); 623 fprintf(stderr, "\n"); 624 } 625 626 static void yyerror(const char *err) 627 { 628 fprintf(stderr, "%s:%d: %s\n", cur_filename, cur_lineno, err); 629 } 630 631 static void print_quoted_string(FILE *out, const char *str) 632 { 633 const char *p; 634 int len; 635 636 putc('"', out); 637 while ((p = strchr(str, '"'))) { 638 len = p - str; 639 if (len) 640 fprintf(out, "%.*s", len, str); 641 fputs("\\\"", out); 642 str = p + 1; 643 } 644 fputs(str, out); 645 putc('"', out); 646 } 647 648 static void print_symbol(FILE *out, struct menu *menu) 649 { 650 struct symbol *sym = menu->sym; 651 struct property *prop; 652 653 if (sym_is_choice(sym)) 654 fprintf(out, "\nchoice\n"); 655 else 656 fprintf(out, "\nconfig %s\n", sym->name); 657 switch (sym->type) { 658 case S_BOOLEAN: 659 fputs(" bool\n", out); 660 break; 661 case S_TRISTATE: 662 fputs(" tristate\n", out); 663 break; 664 case S_STRING: 665 fputs(" string\n", out); 666 break; 667 case S_INT: 668 fputs(" integer\n", out); 669 break; 670 case S_HEX: 671 fputs(" hex\n", out); 672 break; 673 default: 674 fputs(" ???\n", out); 675 break; 676 } 677 for (prop = sym->prop; prop; prop = prop->next) { 678 if (prop->menu != menu) 679 continue; 680 switch (prop->type) { 681 case P_PROMPT: 682 fputs(" prompt ", out); 683 print_quoted_string(out, prop->text); 684 if (!expr_is_yes(prop->visible.expr)) { 685 fputs(" if ", out); 686 expr_fprint(prop->visible.expr, out); 687 } 688 fputc('\n', out); 689 break; 690 case P_DEFAULT: 691 fputs( " default ", out); 692 expr_fprint(prop->expr, out); 693 if (!expr_is_yes(prop->visible.expr)) { 694 fputs(" if ", out); 695 expr_fprint(prop->visible.expr, out); 696 } 697 fputc('\n', out); 698 break; 699 case P_CHOICE: 700 fputs(" #choice value\n", out); 701 break; 702 case P_SELECT: 703 fputs( " select ", out); 704 expr_fprint(prop->expr, out); 705 fputc('\n', out); 706 break; 707 case P_IMPLY: 708 fputs( " imply ", out); 709 expr_fprint(prop->expr, out); 710 fputc('\n', out); 711 break; 712 case P_RANGE: 713 fputs( " range ", out); 714 expr_fprint(prop->expr, out); 715 fputc('\n', out); 716 break; 717 case P_MENU: 718 fputs( " menu ", out); 719 print_quoted_string(out, prop->text); 720 fputc('\n', out); 721 break; 722 case P_SYMBOL: 723 fputs( " symbol ", out); 724 fprintf(out, "%s\n", prop->menu->sym->name); 725 break; 726 default: 727 fprintf(out, " unknown prop %d!\n", prop->type); 728 break; 729 } 730 } 731 if (menu->help) { 732 int len = strlen(menu->help); 733 while (menu->help[--len] == '\n') 734 menu->help[len] = 0; 735 fprintf(out, " help\n%s\n", menu->help); 736 } 737 } 738 739 void zconfdump(FILE *out) 740 { 741 struct property *prop; 742 struct symbol *sym; 743 struct menu *menu; 744 745 menu = rootmenu.list; 746 while (menu) { 747 if ((sym = menu->sym)) 748 print_symbol(out, menu); 749 else if ((prop = menu->prompt)) { 750 switch (prop->type) { 751 case P_COMMENT: 752 fputs("\ncomment ", out); 753 print_quoted_string(out, prop->text); 754 fputs("\n", out); 755 break; 756 case P_MENU: 757 fputs("\nmenu ", out); 758 print_quoted_string(out, prop->text); 759 fputs("\n", out); 760 break; 761 default: 762 ; 763 } 764 if (!expr_is_yes(prop->visible.expr)) { 765 fputs(" depends ", out); 766 expr_fprint(prop->visible.expr, out); 767 fputc('\n', out); 768 } 769 } 770 771 if (menu->list) 772 menu = menu->list; 773 else if (menu->next) 774 menu = menu->next; 775 else while ((menu = menu->parent)) { 776 if (menu->prompt && menu->prompt->type == P_MENU) 777 fputs("\nendmenu\n", out); 778 if (menu->next) { 779 menu = menu->next; 780 break; 781 } 782 } 783 } 784 } 785