3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
4 * Released under the terms of the GNU GPL v2.0.
16 #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
19 #define DEBUG_PARSE 0x0002
23 extern int zconflex(void);
24 static void zconfprint(const char *err, ...);
25 static void zconf_error(const char *err, ...);
26 static void zconferror(const char *err);
27 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
29 struct symbol *symbol_hash[SYMBOL_HASHSIZE];
31 static struct menu *current_menu, *current_entry;
40 struct symbol *symbol;
43 const struct kconf_id *id;
51 %token <id>T_ENDCHOICE
54 %token <id>T_MENUCONFIG
56 %token <string> T_HELPTEXT
69 %token <string> T_WORD
70 %token <string> T_WORD_QUOTE
75 %token T_GREATER_EQUAL
82 %left T_EQUAL T_UNEQUAL
83 %left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
91 %type <id> option_name
92 %type <menu> if_entry menu_entry choice_entry
93 %type <string> symbol_option_arg word_opt
96 fprintf(stderr, "%s:%d: missing end statement for this entry\n",
97 $$->file->name, $$->lineno);
98 if (current_menu == $$)
100 } if_entry menu_entry choice_entry
103 /* Include zconf.hash.c here so it can see the token constants. */
104 #include "zconf.hash.c"
108 input: nl start | start;
110 start: mainmenu_stmt stmt_list | no_mainmenu_stmt stmt_list;
114 mainmenu_stmt: T_MAINMENU prompt nl
116 menu_add_prompt(P_MENU, $2, NULL);
119 /* Default main menu, if there's no mainmenu entry */
121 no_mainmenu_stmt: /* empty */
124 * Hack: Keep the main menu title on the heap so we can safely free it
125 * later regardless of whether it comes from the 'prompt' in
126 * mainmenu_stmt or here
128 menu_add_prompt(P_MENU, strdup("Linux Kernel Configuration"), NULL);
134 | stmt_list common_stmt
135 | stmt_list choice_stmt
136 | stmt_list menu_stmt
137 | stmt_list end { zconf_error("unexpected end statement"); }
138 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
139 | stmt_list option_name error T_EOL
141 zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);
143 | stmt_list error T_EOL { zconf_error("invalid statement"); }
147 T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE
160 T_WORD error T_EOL { zconf_error("unknown option \"%s\"", $1); }
161 | error T_EOL { zconf_error("invalid option"); }
165 /* config/menuconfig entry */
167 config_entry_start: T_CONFIG T_WORD T_EOL
169 struct symbol *sym = sym_lookup($2, 0);
170 sym->flags |= SYMBOL_OPTIONAL;
172 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
175 config_stmt: config_entry_start config_option_list
178 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
181 menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
183 struct symbol *sym = sym_lookup($2, 0);
184 sym->flags |= SYMBOL_OPTIONAL;
186 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
189 menuconfig_stmt: menuconfig_entry_start config_option_list
191 if (current_entry->prompt)
192 current_entry->prompt->type = P_MENU;
194 zconfprint("warning: menuconfig statement without prompt");
196 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
201 | config_option_list config_option
202 | config_option_list symbol_option
203 | config_option_list depends
204 | config_option_list help
205 | config_option_list option_error
206 | config_option_list T_EOL
209 config_option: T_TYPE prompt_stmt_opt T_EOL
211 menu_set_type($1->stype);
212 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
213 zconf_curname(), zconf_lineno(),
217 config_option: T_PROMPT prompt if_expr T_EOL
219 menu_add_prompt(P_PROMPT, $2, $3);
220 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
223 config_option: T_DEFAULT expr if_expr T_EOL
225 menu_add_expr(P_DEFAULT, $2, $3);
226 if ($1->stype != S_UNKNOWN)
227 menu_set_type($1->stype);
228 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
229 zconf_curname(), zconf_lineno(),
233 config_option: T_SELECT T_WORD if_expr T_EOL
235 menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
236 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
239 config_option: T_RANGE symbol symbol if_expr T_EOL
241 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
242 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
245 symbol_option: T_OPTION symbol_option_list T_EOL
250 | symbol_option_list T_WORD symbol_option_arg
252 const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
253 if (id && id->flags & TF_OPTION)
254 menu_add_option(id->token, $3);
256 zconfprint("warning: ignoring unknown option %s", $2);
261 /* empty */ { $$ = NULL; }
262 | T_EQUAL prompt { $$ = $2; }
267 choice: T_CHOICE word_opt T_EOL
269 struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
270 sym->flags |= SYMBOL_AUTO;
272 menu_add_expr(P_CHOICE, NULL, NULL);
273 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
276 choice_entry: choice choice_option_list
278 $$ = menu_add_menu();
283 if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
285 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
289 choice_stmt: choice_entry choice_block choice_end
294 | choice_option_list choice_option
295 | choice_option_list depends
296 | choice_option_list help
297 | choice_option_list T_EOL
298 | choice_option_list option_error
301 choice_option: T_PROMPT prompt if_expr T_EOL
303 menu_add_prompt(P_PROMPT, $2, $3);
304 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
307 choice_option: T_TYPE prompt_stmt_opt T_EOL
309 if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
310 menu_set_type($1->stype);
311 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
312 zconf_curname(), zconf_lineno(),
318 choice_option: T_OPTIONAL T_EOL
320 current_entry->sym->flags |= SYMBOL_OPTIONAL;
321 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
324 choice_option: T_DEFAULT T_WORD if_expr T_EOL
326 if ($1->stype == S_UNKNOWN) {
327 menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
328 printd(DEBUG_PARSE, "%s:%d:default\n",
329 zconf_curname(), zconf_lineno());
336 | choice_block common_stmt
341 if_entry: T_IF expr nl
343 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
344 menu_add_entry(NULL);
346 $$ = menu_add_menu();
351 if (zconf_endtoken($1, T_IF, T_ENDIF)) {
353 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
357 if_stmt: if_entry if_block if_end
362 | if_block common_stmt
364 | if_block choice_stmt
369 menu: T_MENU prompt T_EOL
371 menu_add_entry(NULL);
372 menu_add_prompt(P_MENU, $2, NULL);
373 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
376 menu_entry: menu visibility_list depends_list
378 $$ = menu_add_menu();
383 if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
385 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
389 menu_stmt: menu_entry menu_block menu_end
394 | menu_block common_stmt
395 | menu_block menu_stmt
396 | menu_block choice_stmt
399 source_stmt: T_SOURCE prompt T_EOL
401 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
407 comment: T_COMMENT prompt T_EOL
409 menu_add_entry(NULL);
410 menu_add_prompt(P_COMMENT, $2, NULL);
411 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
414 comment_stmt: comment depends_list
421 help_start: T_HELP T_EOL
423 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
427 help: help_start T_HELPTEXT
429 current_entry->help = $2;
436 | depends_list depends
438 | depends_list option_error
441 depends: T_DEPENDS T_ON expr T_EOL
444 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
447 /* visibility option */
451 | visibility_list visible
452 | visibility_list T_EOL
455 visible: T_VISIBLE if_expr
457 menu_add_visibility($2);
460 /* prompt statement */
466 menu_add_prompt(P_PROMPT, $1, $2);
473 end: T_ENDMENU T_EOL { $$ = $1; }
474 | T_ENDCHOICE T_EOL { $$ = $1; }
475 | T_ENDIF T_EOL { $$ = $1; }
483 if_expr: /* empty */ { $$ = NULL; }
484 | T_IF expr { $$ = $2; }
487 expr: symbol { $$ = expr_alloc_symbol($1); }
488 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
489 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
490 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
491 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
492 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
493 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
494 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
495 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
496 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
497 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
500 symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }
501 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
504 word_opt: /* empty */ { $$ = NULL; }
509 void conf_parse(const char *name)
515 zconf_initscan(name);
520 if (getenv("ZCONF_DEBUG"))
526 modules_sym = sym_find( "n" );
528 tmp = rootmenu.prompt->text;
529 rootmenu.prompt->text = _(rootmenu.prompt->text);
530 rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
533 menu_finalize(&rootmenu);
534 for_all_symbols(i, sym) {
535 if (sym_check_deps(sym))
540 sym_set_change_count(1);
543 static const char *zconf_tokenname(int token)
546 case T_MENU: return "menu";
547 case T_ENDMENU: return "endmenu";
548 case T_CHOICE: return "choice";
549 case T_ENDCHOICE: return "endchoice";
550 case T_IF: return "if";
551 case T_ENDIF: return "endif";
552 case T_DEPENDS: return "depends";
553 case T_VISIBLE: return "visible";
558 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
560 if (id->token != endtoken) {
561 zconf_error("unexpected '%s' within %s block",
562 kconf_id_strings + id->name, zconf_tokenname(starttoken));
566 if (current_menu->file != current_file) {
567 zconf_error("'%s' in different file than '%s'",
568 kconf_id_strings + id->name, zconf_tokenname(starttoken));
569 fprintf(stderr, "%s:%d: location of the '%s'\n",
570 current_menu->file->name, current_menu->lineno,
571 zconf_tokenname(starttoken));
578 static void zconfprint(const char *err, ...)
582 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
584 vfprintf(stderr, err, ap);
586 fprintf(stderr, "\n");
589 static void zconf_error(const char *err, ...)
594 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
596 vfprintf(stderr, err, ap);
598 fprintf(stderr, "\n");
601 static void zconferror(const char *err)
603 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
606 static void print_quoted_string(FILE *out, const char *str)
612 while ((p = strchr(str, '"'))) {
615 fprintf(out, "%.*s", len, str);
623 static void print_symbol(FILE *out, struct menu *menu)
625 struct symbol *sym = menu->sym;
626 struct property *prop;
628 if (sym_is_choice(sym))
629 fprintf(out, "\nchoice\n");
631 fprintf(out, "\nconfig %s\n", sym->name);
634 fputs(" boolean\n", out);
637 fputs(" tristate\n", out);
640 fputs(" string\n", out);
643 fputs(" integer\n", out);
646 fputs(" hex\n", out);
649 fputs(" ???\n", out);
652 for (prop = sym->prop; prop; prop = prop->next) {
653 if (prop->menu != menu)
655 switch (prop->type) {
657 fputs(" prompt ", out);
658 print_quoted_string(out, prop->text);
659 if (!expr_is_yes(prop->visible.expr)) {
661 expr_fprint(prop->visible.expr, out);
666 fputs( " default ", out);
667 expr_fprint(prop->expr, out);
668 if (!expr_is_yes(prop->visible.expr)) {
670 expr_fprint(prop->visible.expr, out);
675 fputs(" #choice value\n", out);
678 fputs( " select ", out);
679 expr_fprint(prop->expr, out);
683 fputs( " range ", out);
684 expr_fprint(prop->expr, out);
688 fputs( " menu ", out);
689 print_quoted_string(out, prop->text);
693 fprintf(out, " unknown prop %d!\n", prop->type);
698 int len = strlen(menu->help);
699 while (menu->help[--len] == '\n')
701 fprintf(out, " help\n%s\n", menu->help);
705 void zconfdump(FILE *out)
707 struct property *prop;
711 menu = rootmenu.list;
713 if ((sym = menu->sym))
714 print_symbol(out, menu);
715 else if ((prop = menu->prompt)) {
716 switch (prop->type) {
718 fputs("\ncomment ", out);
719 print_quoted_string(out, prop->text);
723 fputs("\nmenu ", out);
724 print_quoted_string(out, prop->text);
730 if (!expr_is_yes(prop->visible.expr)) {
731 fputs(" depends ", out);
732 expr_fprint(prop->visible.expr, out);
741 else while ((menu = menu->parent)) {
742 if (menu->prompt && menu->prompt->type == P_MENU)
743 fputs("\nendmenu\n", out);
752 #include "zconf.lex.c"
754 #include "confdata.c"