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
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);
29 struct symbol *symbol_hash[SYMBOL_HASHSIZE];
31 static struct menu *current_menu, *current_entry;
39 struct symbol *symbol;
42 const struct kconf_id *id;
43 enum symbol_type type;
44 enum variable_flavor flavor;
52 %token <id>T_ENDCHOICE
55 %token <id>T_MENUCONFIG
57 %token <string> T_HELPTEXT
69 %token <string> T_WORD
70 %token <string> T_WORD_QUOTE
82 %token <string> T_VARIABLE
83 %token <flavor> T_ASSIGN
84 %token <string> T_ASSIGN_VAL
88 %left T_EQUAL T_UNEQUAL
89 %left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
93 %type <symbol> nonconst_symbol
95 %type <type> type logic_type default
99 %type <menu> if_entry menu_entry choice_entry
100 %type <string> symbol_option_arg word_opt assign_val
103 fprintf(stderr, "%s:%d: missing end statement for this entry\n",
104 $$->file->name, $$->lineno);
105 if (current_menu == $$)
107 } if_entry menu_entry choice_entry
110 /* Include kconf_id.c here so it can see the token constants. */
111 #include "kconf_id.c"
115 input: mainmenu_stmt stmt_list | stmt_list;
119 mainmenu_stmt: T_MAINMENU prompt T_EOL
121 menu_add_prompt(P_MENU, $2, NULL);
126 | stmt_list common_stmt
127 | stmt_list choice_stmt
128 | stmt_list menu_stmt
129 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
130 | stmt_list error T_EOL { zconf_error("invalid statement"); }
142 /* config/menuconfig entry */
144 config_entry_start: T_CONFIG nonconst_symbol T_EOL
146 $2->flags |= SYMBOL_OPTIONAL;
148 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
151 config_stmt: config_entry_start config_option_list
153 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
156 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
158 $2->flags |= SYMBOL_OPTIONAL;
160 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
163 menuconfig_stmt: menuconfig_entry_start config_option_list
165 if (current_entry->prompt)
166 current_entry->prompt->type = P_MENU;
168 zconfprint("warning: menuconfig statement without prompt");
169 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
174 | config_option_list config_option
175 | config_option_list symbol_option
176 | config_option_list depends
177 | config_option_list help
180 config_option: type prompt_stmt_opt T_EOL
183 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
184 zconf_curname(), zconf_lineno(),
188 config_option: T_PROMPT prompt if_expr T_EOL
190 menu_add_prompt(P_PROMPT, $2, $3);
191 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
194 config_option: default expr if_expr T_EOL
196 menu_add_expr(P_DEFAULT, $2, $3);
199 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
200 zconf_curname(), zconf_lineno(),
204 config_option: T_SELECT nonconst_symbol if_expr T_EOL
206 menu_add_symbol(P_SELECT, $2, $3);
207 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
210 config_option: T_IMPLY nonconst_symbol if_expr T_EOL
212 menu_add_symbol(P_IMPLY, $2, $3);
213 printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
216 config_option: T_RANGE symbol symbol if_expr T_EOL
218 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
219 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
222 symbol_option: T_OPTION symbol_option_list T_EOL
227 | symbol_option_list T_WORD symbol_option_arg
229 const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
230 if (id && id->flags & TF_OPTION) {
231 menu_add_option(id->token, $3);
235 zconfprint("warning: ignoring unknown option %s", $2);
240 /* empty */ { $$ = NULL; }
241 | T_EQUAL prompt { $$ = $2; }
246 choice: T_CHOICE word_opt T_EOL
248 struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
249 sym->flags |= SYMBOL_NO_WRITE;
251 menu_add_expr(P_CHOICE, NULL, NULL);
253 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
256 choice_entry: choice choice_option_list
258 $$ = menu_add_menu();
263 if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
265 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
269 choice_stmt: choice_entry choice_block choice_end
274 | choice_option_list choice_option
275 | choice_option_list depends
276 | choice_option_list help
279 choice_option: T_PROMPT prompt if_expr T_EOL
281 menu_add_prompt(P_PROMPT, $2, $3);
282 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
285 choice_option: logic_type prompt_stmt_opt T_EOL
288 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
289 zconf_curname(), zconf_lineno(), $1);
292 choice_option: T_OPTIONAL T_EOL
294 current_entry->sym->flags |= SYMBOL_OPTIONAL;
295 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
298 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
300 menu_add_symbol(P_DEFAULT, $2, $3);
301 printd(DEBUG_PARSE, "%s:%d:default\n",
302 zconf_curname(), zconf_lineno());
307 | T_INT { $$ = S_INT; }
308 | T_HEX { $$ = S_HEX; }
309 | T_STRING { $$ = S_STRING; }
312 T_BOOL { $$ = S_BOOLEAN; }
313 | T_TRISTATE { $$ = S_TRISTATE; }
316 T_DEFAULT { $$ = S_UNKNOWN; }
317 | T_DEF_BOOL { $$ = S_BOOLEAN; }
318 | T_DEF_TRISTATE { $$ = S_TRISTATE; }
322 | choice_block common_stmt
327 if_entry: T_IF expr T_EOL
329 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
330 menu_add_entry(NULL);
332 $$ = menu_add_menu();
337 if (zconf_endtoken($1, T_IF, T_ENDIF)) {
339 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
343 if_stmt: if_entry stmt_list if_end
348 menu: T_MENU prompt T_EOL
350 menu_add_entry(NULL);
351 menu_add_prompt(P_MENU, $2, NULL);
352 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
355 menu_entry: menu menu_option_list
357 $$ = menu_add_menu();
362 if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
364 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
368 menu_stmt: menu_entry stmt_list menu_end
373 | menu_option_list visible
374 | menu_option_list depends
377 source_stmt: T_SOURCE prompt T_EOL
379 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
386 comment: T_COMMENT prompt T_EOL
388 menu_add_entry(NULL);
389 menu_add_prompt(P_COMMENT, $2, NULL);
390 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
393 comment_stmt: comment comment_option_list
398 | comment_option_list depends
403 help_start: T_HELP T_EOL
405 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
409 help: help_start T_HELPTEXT
411 if (current_entry->help) {
412 free(current_entry->help);
413 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
414 current_entry->sym->name ?: "<choice>");
417 /* Is the help text empty or all whitespace? */
418 if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
419 zconfprint("warning: '%s' defined with blank help text",
420 current_entry->sym->name ?: "<choice>");
422 current_entry->help = $2;
427 depends: T_DEPENDS T_ON expr T_EOL
430 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
433 /* visibility option */
434 visible: T_VISIBLE if_expr T_EOL
436 menu_add_visibility($2);
439 /* prompt statement */
445 menu_add_prompt(P_PROMPT, $1, $2);
452 end: T_ENDMENU T_EOL { $$ = $1; }
453 | T_ENDCHOICE T_EOL { $$ = $1; }
454 | T_ENDIF T_EOL { $$ = $1; }
457 if_expr: /* empty */ { $$ = NULL; }
458 | T_IF expr { $$ = $2; }
461 expr: symbol { $$ = expr_alloc_symbol($1); }
462 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
463 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
464 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
465 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
466 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
467 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
468 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
469 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
470 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
471 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
474 /* For symbol definitions, selects, etc., where quotes are not accepted */
475 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
477 symbol: nonconst_symbol
478 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
481 word_opt: /* empty */ { $$ = NULL; }
484 /* assignment statement */
486 assignment_stmt: T_VARIABLE T_ASSIGN assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
489 /* empty */ { $$ = xstrdup(""); };
495 void conf_parse(const char *name)
500 zconf_initscan(name);
503 rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL);
505 if (getenv("ZCONF_DEBUG"))
509 /* Variables are expanded in the parse phase. We can free them here. */
515 modules_sym = sym_find( "n" );
517 if (!menu_has_prompt(&rootmenu)) {
518 current_entry = &rootmenu;
519 menu_add_prompt(P_MENU, "Main menu", NULL);
522 menu_finalize(&rootmenu);
523 for_all_symbols(i, sym) {
524 if (sym_check_deps(sym))
529 sym_set_change_count(1);
532 static const char *zconf_tokenname(int token)
535 case T_MENU: return "menu";
536 case T_ENDMENU: return "endmenu";
537 case T_CHOICE: return "choice";
538 case T_ENDCHOICE: return "endchoice";
539 case T_IF: return "if";
540 case T_ENDIF: return "endif";
541 case T_DEPENDS: return "depends";
542 case T_VISIBLE: return "visible";
547 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
549 if (id->token != endtoken) {
550 zconf_error("unexpected '%s' within %s block",
551 id->name, zconf_tokenname(starttoken));
555 if (current_menu->file != current_file) {
556 zconf_error("'%s' in different file than '%s'",
557 id->name, zconf_tokenname(starttoken));
558 fprintf(stderr, "%s:%d: location of the '%s'\n",
559 current_menu->file->name, current_menu->lineno,
560 zconf_tokenname(starttoken));
567 static void zconfprint(const char *err, ...)
571 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
573 vfprintf(stderr, err, ap);
575 fprintf(stderr, "\n");
578 static void zconf_error(const char *err, ...)
583 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
585 vfprintf(stderr, err, ap);
587 fprintf(stderr, "\n");
590 static void yyerror(const char *err)
592 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
595 static void print_quoted_string(FILE *out, const char *str)
601 while ((p = strchr(str, '"'))) {
604 fprintf(out, "%.*s", len, str);
612 static void print_symbol(FILE *out, struct menu *menu)
614 struct symbol *sym = menu->sym;
615 struct property *prop;
617 if (sym_is_choice(sym))
618 fprintf(out, "\nchoice\n");
620 fprintf(out, "\nconfig %s\n", sym->name);
623 fputs(" bool\n", out);
626 fputs(" tristate\n", out);
629 fputs(" string\n", out);
632 fputs(" integer\n", out);
635 fputs(" hex\n", out);
638 fputs(" ???\n", out);
641 for (prop = sym->prop; prop; prop = prop->next) {
642 if (prop->menu != menu)
644 switch (prop->type) {
646 fputs(" prompt ", out);
647 print_quoted_string(out, prop->text);
648 if (!expr_is_yes(prop->visible.expr)) {
650 expr_fprint(prop->visible.expr, out);
655 fputs( " default ", out);
656 expr_fprint(prop->expr, out);
657 if (!expr_is_yes(prop->visible.expr)) {
659 expr_fprint(prop->visible.expr, out);
664 fputs(" #choice value\n", out);
667 fputs( " select ", out);
668 expr_fprint(prop->expr, out);
672 fputs( " imply ", out);
673 expr_fprint(prop->expr, out);
677 fputs( " range ", out);
678 expr_fprint(prop->expr, out);
682 fputs( " menu ", out);
683 print_quoted_string(out, prop->text);
687 fputs( " symbol ", out);
688 fprintf(out, "%s\n", prop->sym->name);
691 fprintf(out, " unknown prop %d!\n", prop->type);
696 int len = strlen(menu->help);
697 while (menu->help[--len] == '\n')
699 fprintf(out, " help\n%s\n", menu->help);
703 void zconfdump(FILE *out)
705 struct property *prop;
709 menu = rootmenu.list;
711 if ((sym = menu->sym))
712 print_symbol(out, menu);
713 else if ((prop = menu->prompt)) {
714 switch (prop->type) {
716 fputs("\ncomment ", out);
717 print_quoted_string(out, prop->text);
721 fputs("\nmenu ", out);
722 print_quoted_string(out, prop->text);
728 if (!expr_is_yes(prop->visible.expr)) {
729 fputs(" depends ", out);
730 expr_fprint(prop->visible.expr, out);
739 else while ((menu = menu->parent)) {
740 if (menu->prompt && menu->prompt->type == P_MENU)
741 fputs("\nendmenu\n", out);
750 #include "zconf.lex.c"
752 #include "confdata.c"
756 #include "preprocess.c"