scripts/kconfig/zconf.y

   1 %{
   2 /*
   3  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
   4  * Released under the terms of the GNU GPL v2.0.
   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
  16 #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
  17
  18 #define PRINTD          0x0001
  19 #define DEBUG_PARSE     0x0002
  20
  21 int cdebug = PRINTD;
  22
  23 int yylex(void);
  24 static void yyerror(const char *err);
  25 static void zconfprint(const char *err, ...);
  26 static void zconf_error(const char *err, ...);
  27 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
  28
  29 struct symbol *symbol_hash[SYMBOL_HASHSIZE];
  30
  31 static struct menu *current_menu, *current_entry;
  32
  33 %}
  34 %expect 32
  35
  36 %union
  37 {
  38         char *string;
  39         struct file *file;
  40         struct symbol *symbol;
  41         struct expr *expr;
  42         struct menu *menu;
  43         const struct kconf_id *id;
  44 }
  45
  46 %token <id>T_MAINMENU
  47 %token <id>T_MENU
  48 %token <id>T_ENDMENU
  49 %token <id>T_SOURCE
  50 %token <id>T_CHOICE
  51 %token <id>T_ENDCHOICE
  52 %token <id>T_COMMENT
  53 %token <id>T_CONFIG
  54 %token <id>T_MENUCONFIG
  55 %token <id>T_HELP
  56 %token <string> T_HELPTEXT
  57 %token <id>T_IF
  58 %token <id>T_ENDIF
  59 %token <id>T_DEPENDS
  60 %token <id>T_OPTIONAL
  61 %token <id>T_PROMPT
  62 %token <id>T_TYPE
  63 %token <id>T_DEFAULT
  64 %token <id>T_SELECT
  65 %token <id>T_IMPLY
  66 %token <id>T_RANGE
  67 %token <id>T_VISIBLE
  68 %token <id>T_OPTION
  69 %token <id>T_ON
  70 %token <string> T_WORD
  71 %token <string> T_WORD_QUOTE
  72 %token T_UNEQUAL
  73 %token T_LESS
  74 %token T_LESS_EQUAL
  75 %token T_GREATER
  76 %token T_GREATER_EQUAL
  77 %token T_CLOSE_PAREN
  78 %token T_OPEN_PAREN
  79 %token T_EOL
  80
  81 %left T_OR
  82 %left T_AND
  83 %left T_EQUAL T_UNEQUAL
  84 %left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
  85 %nonassoc T_NOT
  86
  87 %type <string> prompt
  88 %type <symbol> nonconst_symbol
  89 %type <symbol> symbol
  90 %type <expr> expr
  91 %type <expr> if_expr
  92 %type <id> end
  93 %type <id> option_name
  94 %type <menu> if_entry menu_entry choice_entry
  95 %type <string> symbol_option_arg word_opt
  96
  97 %destructor {
  98         fprintf(stderr, "%s:%d: missing end statement for this entry\n",
  99                 $$->file->name, $$->lineno);
 100         if (current_menu == $$)
 101                 menu_end_menu();
 102 } if_entry menu_entry choice_entry
 103
 104 %{
 105 /* Include kconf_id.c here so it can see the token constants. */
 106 #include "kconf_id.c"
 107 %}
 108
 109 %%
 110 input: nl start | start;
 111
 112 start: mainmenu_stmt stmt_list | no_mainmenu_stmt stmt_list;
 113
 114 /* mainmenu entry */
 115
 116 mainmenu_stmt: T_MAINMENU prompt nl
 117 {
 118         menu_add_prompt(P_MENU, $2, NULL);
 119 };
 120
 121 /* Default main menu, if there's no mainmenu entry */
 122
 123 no_mainmenu_stmt: /* empty */
 124 {
 125         /*
 126          * Hack: Keep the main menu title on the heap so we can safely free it
 127          * later regardless of whether it comes from the 'prompt' in
 128          * mainmenu_stmt or here
 129          */
 130         menu_add_prompt(P_MENU, xstrdup("Linux Kernel Configuration"), NULL);
 131 };
 132
 133
 134 stmt_list:
 135           /* empty */
 136         | stmt_list common_stmt
 137         | stmt_list choice_stmt
 138         | stmt_list menu_stmt
 139         | stmt_list end                 { zconf_error("unexpected end statement"); }
 140         | stmt_list T_WORD error T_EOL  { zconf_error("unknown statement \"%s\"", $2); }
 141         | stmt_list option_name error T_EOL
 142 {
 143         zconf_error("unexpected option \"%s\"", $2->name);
 144 }
 145         | stmt_list error T_EOL         { zconf_error("invalid statement"); }
 146 ;
 147
 148 option_name:
 149         T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_IMPLY | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE
 150 ;
 151
 152 common_stmt:
 153           T_EOL
 154         | if_stmt
 155         | comment_stmt
 156         | config_stmt
 157         | menuconfig_stmt
 158         | source_stmt
 159 ;
 160
 161 option_error:
 162           T_WORD error T_EOL            { zconf_error("unknown option \"%s\"", $1); }
 163         | error T_EOL                   { zconf_error("invalid option"); }
 164 ;
 165
 166
 167 /* config/menuconfig entry */
 168
 169 config_entry_start: T_CONFIG nonconst_symbol T_EOL
 170 {
 171         $2->flags |= SYMBOL_OPTIONAL;
 172         menu_add_entry($2);
 173         printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
 174 };
 175
 176 config_stmt: config_entry_start config_option_list
 177 {
 178         printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
 179 };
 180
 181 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
 182 {
 183         $2->flags |= SYMBOL_OPTIONAL;
 184         menu_add_entry($2);
 185         printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
 186 };
 187
 188 menuconfig_stmt: menuconfig_entry_start config_option_list
 189 {
 190         if (current_entry->prompt)
 191                 current_entry->prompt->type = P_MENU;
 192         else
 193                 zconfprint("warning: menuconfig statement without prompt");
 194         printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
 195 };
 196
 197 config_option_list:
 198           /* empty */
 199         | config_option_list config_option
 200         | config_option_list symbol_option
 201         | config_option_list depends
 202         | config_option_list help
 203         | config_option_list option_error
 204         | config_option_list T_EOL
 205 ;
 206
 207 config_option: T_TYPE prompt_stmt_opt T_EOL
 208 {
 209         menu_set_type($1->stype);
 210         printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
 211                 zconf_curname(), zconf_lineno(),
 212                 $1->stype);
 213 };
 214
 215 config_option: T_PROMPT prompt if_expr T_EOL
 216 {
 217         menu_add_prompt(P_PROMPT, $2, $3);
 218         printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
 219 };
 220
 221 config_option: T_DEFAULT expr if_expr T_EOL
 222 {
 223         menu_add_expr(P_DEFAULT, $2, $3);
 224         if ($1->stype != S_UNKNOWN)
 225                 menu_set_type($1->stype);
 226         printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
 227                 zconf_curname(), zconf_lineno(),
 228                 $1->stype);
 229 };
 230
 231 config_option: T_SELECT nonconst_symbol if_expr T_EOL
 232 {
 233         menu_add_symbol(P_SELECT, $2, $3);
 234         printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
 235 };
 236
 237 config_option: T_IMPLY nonconst_symbol if_expr T_EOL
 238 {
 239         menu_add_symbol(P_IMPLY, $2, $3);
 240         printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
 241 };
 242
 243 config_option: T_RANGE symbol symbol if_expr T_EOL
 244 {
 245         menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
 246         printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
 247 };
 248
 249 symbol_option: T_OPTION symbol_option_list T_EOL
 250 ;
 251
 252 symbol_option_list:
 253           /* empty */
 254         | symbol_option_list T_WORD symbol_option_arg
 255 {
 256         const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
 257         if (id && id->flags & TF_OPTION) {
 258                 menu_add_option(id->token, $3);
 259                 free($3);
 260         }
 261         else
 262                 zconfprint("warning: ignoring unknown option %s", $2);
 263         free($2);
 264 };
 265
 266 symbol_option_arg:
 267           /* empty */           { $$ = NULL; }
 268         | T_EQUAL prompt        { $$ = $2; }
 269 ;
 270
 271 /* choice entry */
 272
 273 choice: T_CHOICE word_opt T_EOL
 274 {
 275         struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
 276         sym->flags |= SYMBOL_AUTO;
 277         menu_add_entry(sym);
 278         menu_add_expr(P_CHOICE, NULL, NULL);
 279         free($2);
 280         printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
 281 };
 282
 283 choice_entry: choice choice_option_list
 284 {
 285         $$ = menu_add_menu();
 286 };
 287
 288 choice_end: end
 289 {
 290         if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
 291                 menu_end_menu();
 292                 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
 293         }
 294 };
 295
 296 choice_stmt: choice_entry choice_block choice_end
 297 ;
 298
 299 choice_option_list:
 300           /* empty */
 301         | choice_option_list choice_option
 302         | choice_option_list depends
 303         | choice_option_list help
 304         | choice_option_list T_EOL
 305         | choice_option_list option_error
 306 ;
 307
 308 choice_option: T_PROMPT prompt if_expr T_EOL
 309 {
 310         menu_add_prompt(P_PROMPT, $2, $3);
 311         printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
 312 };
 313
 314 choice_option: T_TYPE prompt_stmt_opt T_EOL
 315 {
 316         if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
 317                 menu_set_type($1->stype);
 318                 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
 319                         zconf_curname(), zconf_lineno(),
 320                         $1->stype);
 321         } else
 322                 YYERROR;
 323 };
 324
 325 choice_option: T_OPTIONAL T_EOL
 326 {
 327         current_entry->sym->flags |= SYMBOL_OPTIONAL;
 328         printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
 329 };
 330
 331 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
 332 {
 333         if ($1->stype == S_UNKNOWN) {
 334                 menu_add_symbol(P_DEFAULT, $2, $3);
 335                 printd(DEBUG_PARSE, "%s:%d:default\n",
 336                         zconf_curname(), zconf_lineno());
 337         } else
 338                 YYERROR;
 339 };
 340
 341 choice_block:
 342           /* empty */
 343         | choice_block common_stmt
 344 ;
 345
 346 /* if entry */
 347
 348 if_entry: T_IF expr nl
 349 {
 350         printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
 351         menu_add_entry(NULL);
 352         menu_add_dep($2);
 353         $$ = menu_add_menu();
 354 };
 355
 356 if_end: end
 357 {
 358         if (zconf_endtoken($1, T_IF, T_ENDIF)) {
 359                 menu_end_menu();
 360                 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
 361         }
 362 };
 363
 364 if_stmt: if_entry if_block if_end
 365 ;
 366
 367 if_block:
 368           /* empty */
 369         | if_block common_stmt
 370         | if_block menu_stmt
 371         | if_block choice_stmt
 372 ;
 373
 374 /* menu entry */
 375
 376 menu: T_MENU prompt T_EOL
 377 {
 378         menu_add_entry(NULL);
 379         menu_add_prompt(P_MENU, $2, NULL);
 380         printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
 381 };
 382
 383 menu_entry: menu visibility_list depends_list
 384 {
 385         $$ = menu_add_menu();
 386 };
 387
 388 menu_end: end
 389 {
 390         if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
 391                 menu_end_menu();
 392                 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
 393         }
 394 };
 395
 396 menu_stmt: menu_entry menu_block menu_end
 397 ;
 398
 399 menu_block:
 400           /* empty */
 401         | menu_block common_stmt
 402         | menu_block menu_stmt
 403         | menu_block choice_stmt
 404 ;
 405
 406 source_stmt: T_SOURCE prompt T_EOL
 407 {
 408         printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
 409         zconf_nextfile($2);
 410         free($2);
 411 };
 412
 413 /* comment entry */
 414
 415 comment: T_COMMENT prompt T_EOL
 416 {
 417         menu_add_entry(NULL);
 418         menu_add_prompt(P_COMMENT, $2, NULL);
 419         printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
 420 };
 421
 422 comment_stmt: comment depends_list
 423 ;
 424
 425 /* help option */
 426
 427 help_start: T_HELP T_EOL
 428 {
 429         printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
 430         zconf_starthelp();
 431 };
 432
 433 help: help_start T_HELPTEXT
 434 {
 435         if (current_entry->help) {
 436                 free(current_entry->help);
 437                 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
 438                            current_entry->sym->name ?: "<choice>");
 439         }
 440
 441         /* Is the help text empty or all whitespace? */
 442         if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
 443                 zconfprint("warning: '%s' defined with blank help text",
 444                            current_entry->sym->name ?: "<choice>");
 445
 446         current_entry->help = $2;
 447 };
 448
 449 /* depends option */
 450
 451 depends_list:
 452           /* empty */
 453         | depends_list depends
 454         | depends_list T_EOL
 455         | depends_list option_error
 456 ;
 457
 458 depends: T_DEPENDS T_ON expr T_EOL
 459 {
 460         menu_add_dep($3);
 461         printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
 462 };
 463
 464 /* visibility option */
 465
 466 visibility_list:
 467           /* empty */
 468         | visibility_list visible
 469         | visibility_list T_EOL
 470 ;
 471
 472 visible: T_VISIBLE if_expr
 473 {
 474         menu_add_visibility($2);
 475 };
 476
 477 /* prompt statement */
 478
 479 prompt_stmt_opt:
 480           /* empty */
 481         | prompt if_expr
 482 {
 483         menu_add_prompt(P_PROMPT, $1, $2);
 484 };
 485
 486 prompt:   T_WORD
 487         | T_WORD_QUOTE
 488 ;
 489
 490 end:      T_ENDMENU T_EOL       { $$ = $1; }
 491         | T_ENDCHOICE T_EOL     { $$ = $1; }
 492         | T_ENDIF T_EOL         { $$ = $1; }
 493 ;
 494
 495 nl:
 496           T_EOL
 497         | nl T_EOL
 498 ;
 499
 500 if_expr:  /* empty */                   { $$ = NULL; }
 501         | T_IF expr                     { $$ = $2; }
 502 ;
 503
 504 expr:     symbol                                { $$ = expr_alloc_symbol($1); }
 505         | symbol T_LESS symbol                  { $$ = expr_alloc_comp(E_LTH, $1, $3); }
 506         | symbol T_LESS_EQUAL symbol            { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
 507         | symbol T_GREATER symbol               { $$ = expr_alloc_comp(E_GTH, $1, $3); }
 508         | symbol T_GREATER_EQUAL symbol         { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
 509         | symbol T_EQUAL symbol                 { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
 510         | symbol T_UNEQUAL symbol               { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
 511         | T_OPEN_PAREN expr T_CLOSE_PAREN       { $$ = $2; }
 512         | T_NOT expr                            { $$ = expr_alloc_one(E_NOT, $2); }
 513         | expr T_OR expr                        { $$ = expr_alloc_two(E_OR, $1, $3); }
 514         | expr T_AND expr                       { $$ = expr_alloc_two(E_AND, $1, $3); }
 515 ;
 516
 517 /* For symbol definitions, selects, etc., where quotes are not accepted */
 518 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
 519
 520 symbol:   nonconst_symbol
 521         | T_WORD_QUOTE  { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
 522 ;
 523
 524 word_opt: /* empty */                   { $$ = NULL; }
 525         | T_WORD
 526
 527 %%
 528
 529 void conf_parse(const char *name)
 530 {
 531         const char *tmp;
 532         struct symbol *sym;
 533         int i;
 534
 535         zconf_initscan(name);
 536
 537         sym_init();
 538         _menu_init();
 539
 540         if (getenv("ZCONF_DEBUG"))
 541                 yydebug = 1;
 542         yyparse();
 543         if (yynerrs)
 544                 exit(1);
 545         if (!modules_sym)
 546                 modules_sym = sym_find( "n" );
 547
 548         tmp = rootmenu.prompt->text;
 549         rootmenu.prompt->text = _(rootmenu.prompt->text);
 550         rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
 551         free((char*)tmp);
 552
 553         menu_finalize(&rootmenu);
 554         for_all_symbols(i, sym) {
 555                 if (sym_check_deps(sym))
 556                         yynerrs++;
 557         }
 558         if (yynerrs)
 559                 exit(1);
 560         sym_set_change_count(1);
 561 }
 562
 563 static const char *zconf_tokenname(int token)
 564 {
 565         switch (token) {
 566         case T_MENU:            return "menu";
 567         case T_ENDMENU:         return "endmenu";
 568         case T_CHOICE:          return "choice";
 569         case T_ENDCHOICE:       return "endchoice";
 570         case T_IF:              return "if";
 571         case T_ENDIF:           return "endif";
 572         case T_DEPENDS:         return "depends";
 573         case T_VISIBLE:         return "visible";
 574         }
 575         return "<token>";
 576 }
 577
 578 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
 579 {
 580         if (id->token != endtoken) {
 581                 zconf_error("unexpected '%s' within %s block",
 582                         id->name, zconf_tokenname(starttoken));
 583                 yynerrs++;
 584                 return false;
 585         }
 586         if (current_menu->file != current_file) {
 587                 zconf_error("'%s' in different file than '%s'",
 588                         id->name, zconf_tokenname(starttoken));
 589                 fprintf(stderr, "%s:%d: location of the '%s'\n",
 590                         current_menu->file->name, current_menu->lineno,
 591                         zconf_tokenname(starttoken));
 592                 yynerrs++;
 593                 return false;
 594         }
 595         return true;
 596 }
 597
 598 static void zconfprint(const char *err, ...)
 599 {
 600         va_list ap;
 601
 602         fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
 603         va_start(ap, err);
 604         vfprintf(stderr, err, ap);
 605         va_end(ap);
 606         fprintf(stderr, "\n");
 607 }
 608
 609 static void zconf_error(const char *err, ...)
 610 {
 611         va_list ap;
 612
 613         yynerrs++;
 614         fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
 615         va_start(ap, err);
 616         vfprintf(stderr, err, ap);
 617         va_end(ap);
 618         fprintf(stderr, "\n");
 619 }
 620
 621 static void yyerror(const char *err)
 622 {
 623         fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
 624 }
 625
 626 static void print_quoted_string(FILE *out, const char *str)
 627 {
 628         const char *p;
 629         int len;
 630
 631         putc('"', out);
 632         while ((p = strchr(str, '"'))) {
 633                 len = p - str;
 634                 if (len)
 635                         fprintf(out, "%.*s", len, str);
 636                 fputs("\\\"", out);
 637                 str = p + 1;
 638         }
 639         fputs(str, out);
 640         putc('"', out);
 641 }
 642
 643 static void print_symbol(FILE *out, struct menu *menu)
 644 {
 645         struct symbol *sym = menu->sym;
 646         struct property *prop;
 647
 648         if (sym_is_choice(sym))
 649                 fprintf(out, "\nchoice\n");
 650         else
 651                 fprintf(out, "\nconfig %s\n", sym->name);
 652         switch (sym->type) {
 653         case S_BOOLEAN:
 654                 fputs("  bool\n", out);
 655                 break;
 656         case S_TRISTATE:
 657                 fputs("  tristate\n", out);
 658                 break;
 659         case S_STRING:
 660                 fputs("  string\n", out);
 661                 break;
 662         case S_INT:
 663                 fputs("  integer\n", out);
 664                 break;
 665         case S_HEX:
 666                 fputs("  hex\n", out);
 667                 break;
 668         default:
 669                 fputs("  ???\n", out);
 670                 break;
 671         }
 672         for (prop = sym->prop; prop; prop = prop->next) {
 673                 if (prop->menu != menu)
 674                         continue;
 675                 switch (prop->type) {
 676                 case P_PROMPT:
 677                         fputs("  prompt ", out);
 678                         print_quoted_string(out, prop->text);
 679                         if (!expr_is_yes(prop->visible.expr)) {
 680                                 fputs(" if ", out);
 681                                 expr_fprint(prop->visible.expr, out);
 682                         }
 683                         fputc('\n', out);
 684                         break;
 685                 case P_DEFAULT:
 686                         fputs( "  default ", out);
 687                         expr_fprint(prop->expr, out);
 688                         if (!expr_is_yes(prop->visible.expr)) {
 689                                 fputs(" if ", out);
 690                                 expr_fprint(prop->visible.expr, out);
 691                         }
 692                         fputc('\n', out);
 693                         break;
 694                 case P_CHOICE:
 695                         fputs("  #choice value\n", out);
 696                         break;
 697                 case P_SELECT:
 698                         fputs( "  select ", out);
 699                         expr_fprint(prop->expr, out);
 700                         fputc('\n', out);
 701                         break;
 702                 case P_IMPLY:
 703                         fputs( "  imply ", out);
 704                         expr_fprint(prop->expr, out);
 705                         fputc('\n', out);
 706                         break;
 707                 case P_RANGE:
 708                         fputs( "  range ", out);
 709                         expr_fprint(prop->expr, out);
 710                         fputc('\n', out);
 711                         break;
 712                 case P_MENU:
 713                         fputs( "  menu ", out);
 714                         print_quoted_string(out, prop->text);
 715                         fputc('\n', out);
 716                         break;
 717                 default:
 718                         fprintf(out, "  unknown prop %d!\n", prop->type);
 719                         break;
 720                 }
 721         }
 722         if (menu->help) {
 723                 int len = strlen(menu->help);
 724                 while (menu->help[--len] == '\n')
 725                         menu->help[len] = 0;
 726                 fprintf(out, "  help\n%s\n", menu->help);
 727         }
 728 }
 729
 730 void zconfdump(FILE *out)
 731 {
 732         struct property *prop;
 733         struct symbol *sym;
 734         struct menu *menu;
 735
 736         menu = rootmenu.list;
 737         while (menu) {
 738                 if ((sym = menu->sym))
 739                         print_symbol(out, menu);
 740                 else if ((prop = menu->prompt)) {
 741                         switch (prop->type) {
 742                         case P_COMMENT:
 743                                 fputs("\ncomment ", out);
 744                                 print_quoted_string(out, prop->text);
 745                                 fputs("\n", out);
 746                                 break;
 747                         case P_MENU:
 748                                 fputs("\nmenu ", out);
 749                                 print_quoted_string(out, prop->text);
 750                                 fputs("\n", out);
 751                                 break;
 752                         default:
 753                                 ;
 754                         }
 755                         if (!expr_is_yes(prop->visible.expr)) {
 756                                 fputs("  depends ", out);
 757                                 expr_fprint(prop->visible.expr, out);
 758                                 fputc('\n', out);
 759                         }
 760                 }
 761
 762                 if (menu->list)
 763                         menu = menu->list;
 764                 else if (menu->next)
 765                         menu = menu->next;
 766                 else while ((menu = menu->parent)) {
 767                         if (menu->prompt && menu->prompt->type == P_MENU)
 768                                 fputs("\nendmenu\n", out);
 769                         if (menu->next) {
 770                                 menu = menu->next;
 771                                 break;
 772                         }
 773                 }
 774         }
 775 }
 776
 777 #include "zconf.lex.c"
 778 #include "util.c"
 779 #include "confdata.c"
 780 #include "expr.c"
 781 #include "symbol.c"
 782 #include "menu.c"