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;
40 struct symbol *symbol;
43 const struct kconf_id *id;
44 enum variable_flavor flavor;
52 %token <id>T_ENDCHOICE
55 %token <id>T_MENUCONFIG
57 %token <string> T_HELPTEXT
71 %token <string> T_WORD
72 %token <string> T_WORD_QUOTE
77 %token T_GREATER_EQUAL
81 %token <string> T_VARIABLE
82 %token <flavor> T_ASSIGN
83 %token <string> T_ASSIGN_VAL
87 %left T_EQUAL T_UNEQUAL
88 %left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
92 %type <symbol> nonconst_symbol
97 %type <menu> if_entry menu_entry choice_entry
98 %type <string> symbol_option_arg word_opt assign_val
101 fprintf(stderr, "%s:%d: missing end statement for this entry\n",
102 $$->file->name, $$->lineno);
103 if (current_menu == $$)
105 } if_entry menu_entry choice_entry
108 /* Include kconf_id.c here so it can see the token constants. */
109 #include "kconf_id.c"
113 input: mainmenu_stmt stmt_list | stmt_list;
117 mainmenu_stmt: T_MAINMENU prompt T_EOL
119 menu_add_prompt(P_MENU, $2, NULL);
124 | stmt_list common_stmt
125 | stmt_list choice_stmt
126 | stmt_list menu_stmt
127 | stmt_list end { zconf_error("unexpected end statement"); }
128 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
129 | stmt_list error T_EOL { zconf_error("invalid statement"); }
142 T_WORD error T_EOL { zconf_error("unknown option \"%s\"", $1); }
143 | error T_EOL { zconf_error("invalid option"); }
147 /* config/menuconfig entry */
149 config_entry_start: T_CONFIG nonconst_symbol T_EOL
151 $2->flags |= SYMBOL_OPTIONAL;
153 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
156 config_stmt: config_entry_start config_option_list
158 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
161 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
163 $2->flags |= SYMBOL_OPTIONAL;
165 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
168 menuconfig_stmt: menuconfig_entry_start config_option_list
170 if (current_entry->prompt)
171 current_entry->prompt->type = P_MENU;
173 zconfprint("warning: menuconfig statement without prompt");
174 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
179 | config_option_list config_option
180 | config_option_list symbol_option
181 | config_option_list depends
182 | config_option_list help
183 | config_option_list option_error
186 config_option: T_TYPE prompt_stmt_opt T_EOL
188 menu_set_type($1->stype);
189 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
190 zconf_curname(), zconf_lineno(),
194 config_option: T_PROMPT prompt if_expr T_EOL
196 menu_add_prompt(P_PROMPT, $2, $3);
197 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
200 config_option: T_DEFAULT expr if_expr T_EOL
202 menu_add_expr(P_DEFAULT, $2, $3);
203 if ($1->stype != S_UNKNOWN)
204 menu_set_type($1->stype);
205 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
206 zconf_curname(), zconf_lineno(),
210 config_option: T_SELECT nonconst_symbol if_expr T_EOL
212 menu_add_symbol(P_SELECT, $2, $3);
213 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
216 config_option: T_IMPLY nonconst_symbol if_expr T_EOL
218 menu_add_symbol(P_IMPLY, $2, $3);
219 printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
222 config_option: T_RANGE symbol symbol if_expr T_EOL
224 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
225 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
228 symbol_option: T_OPTION symbol_option_list T_EOL
233 | symbol_option_list T_WORD symbol_option_arg
235 const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
236 if (id && id->flags & TF_OPTION) {
237 menu_add_option(id->token, $3);
241 zconfprint("warning: ignoring unknown option %s", $2);
246 /* empty */ { $$ = NULL; }
247 | T_EQUAL prompt { $$ = $2; }
252 choice: T_CHOICE word_opt T_EOL
254 struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
255 sym->flags |= SYMBOL_NO_WRITE;
257 menu_add_expr(P_CHOICE, NULL, NULL);
259 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
262 choice_entry: choice choice_option_list
264 $$ = menu_add_menu();
269 if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
271 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
275 choice_stmt: choice_entry choice_block choice_end
280 | choice_option_list choice_option
281 | choice_option_list depends
282 | choice_option_list help
283 | choice_option_list option_error
286 choice_option: T_PROMPT prompt if_expr T_EOL
288 menu_add_prompt(P_PROMPT, $2, $3);
289 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
292 choice_option: T_TYPE prompt_stmt_opt T_EOL
294 if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
295 menu_set_type($1->stype);
296 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
297 zconf_curname(), zconf_lineno(),
303 choice_option: T_OPTIONAL T_EOL
305 current_entry->sym->flags |= SYMBOL_OPTIONAL;
306 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
309 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
311 if ($1->stype == S_UNKNOWN) {
312 menu_add_symbol(P_DEFAULT, $2, $3);
313 printd(DEBUG_PARSE, "%s:%d:default\n",
314 zconf_curname(), zconf_lineno());
321 | choice_block common_stmt
326 if_entry: T_IF expr T_EOL
328 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
329 menu_add_entry(NULL);
331 $$ = menu_add_menu();
336 if (zconf_endtoken($1, T_IF, T_ENDIF)) {
338 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
342 if_stmt: if_entry if_block if_end
347 | if_block common_stmt
349 | if_block choice_stmt
354 menu: T_MENU prompt T_EOL
356 menu_add_entry(NULL);
357 menu_add_prompt(P_MENU, $2, NULL);
358 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
361 menu_entry: menu visibility_list depends_list
363 $$ = menu_add_menu();
368 if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
370 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
374 menu_stmt: menu_entry menu_block menu_end
379 | menu_block common_stmt
380 | menu_block menu_stmt
381 | menu_block choice_stmt
384 source_stmt: T_SOURCE prompt T_EOL
386 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
393 comment: T_COMMENT prompt T_EOL
395 menu_add_entry(NULL);
396 menu_add_prompt(P_COMMENT, $2, NULL);
397 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
400 comment_stmt: comment depends_list
405 help_start: T_HELP T_EOL
407 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
411 help: help_start T_HELPTEXT
413 if (current_entry->help) {
414 free(current_entry->help);
415 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
416 current_entry->sym->name ?: "<choice>");
419 /* Is the help text empty or all whitespace? */
420 if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
421 zconfprint("warning: '%s' defined with blank help text",
422 current_entry->sym->name ?: "<choice>");
424 current_entry->help = $2;
431 | depends_list depends
432 | depends_list option_error
435 depends: T_DEPENDS T_ON expr T_EOL
438 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
441 /* visibility option */
445 | visibility_list visible
448 visible: T_VISIBLE if_expr T_EOL
450 menu_add_visibility($2);
453 /* prompt statement */
459 menu_add_prompt(P_PROMPT, $1, $2);
466 end: T_ENDMENU T_EOL { $$ = $1; }
467 | T_ENDCHOICE T_EOL { $$ = $1; }
468 | T_ENDIF T_EOL { $$ = $1; }
471 if_expr: /* empty */ { $$ = NULL; }
472 | T_IF expr { $$ = $2; }
475 expr: symbol { $$ = expr_alloc_symbol($1); }
476 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
477 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
478 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
479 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
480 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
481 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
482 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
483 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
484 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
485 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
488 /* For symbol definitions, selects, etc., where quotes are not accepted */
489 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
491 symbol: nonconst_symbol
492 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
495 word_opt: /* empty */ { $$ = NULL; }
498 /* assignment statement */
500 assignment_stmt: T_VARIABLE T_ASSIGN assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
503 /* empty */ { $$ = xstrdup(""); };
509 void conf_parse(const char *name)
514 zconf_initscan(name);
517 rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL);
519 if (getenv("ZCONF_DEBUG"))
523 /* Variables are expanded in the parse phase. We can free them here. */
529 modules_sym = sym_find( "n" );
531 if (!menu_has_prompt(&rootmenu)) {
532 current_entry = &rootmenu;
533 menu_add_prompt(P_MENU, "Main menu", NULL);
536 menu_finalize(&rootmenu);
537 for_all_symbols(i, sym) {
538 if (sym_check_deps(sym))
543 sym_set_change_count(1);
546 static const char *zconf_tokenname(int token)
549 case T_MENU: return "menu";
550 case T_ENDMENU: return "endmenu";
551 case T_CHOICE: return "choice";
552 case T_ENDCHOICE: return "endchoice";
553 case T_IF: return "if";
554 case T_ENDIF: return "endif";
555 case T_DEPENDS: return "depends";
556 case T_VISIBLE: return "visible";
561 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
563 if (id->token != endtoken) {
564 zconf_error("unexpected '%s' within %s block",
565 id->name, zconf_tokenname(starttoken));
569 if (current_menu->file != current_file) {
570 zconf_error("'%s' in different file than '%s'",
571 id->name, zconf_tokenname(starttoken));
572 fprintf(stderr, "%s:%d: location of the '%s'\n",
573 current_menu->file->name, current_menu->lineno,
574 zconf_tokenname(starttoken));
581 static void zconfprint(const char *err, ...)
585 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
587 vfprintf(stderr, err, ap);
589 fprintf(stderr, "\n");
592 static void zconf_error(const char *err, ...)
597 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
599 vfprintf(stderr, err, ap);
601 fprintf(stderr, "\n");
604 static void yyerror(const char *err)
606 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
609 static void print_quoted_string(FILE *out, const char *str)
615 while ((p = strchr(str, '"'))) {
618 fprintf(out, "%.*s", len, str);
626 static void print_symbol(FILE *out, struct menu *menu)
628 struct symbol *sym = menu->sym;
629 struct property *prop;
631 if (sym_is_choice(sym))
632 fprintf(out, "\nchoice\n");
634 fprintf(out, "\nconfig %s\n", sym->name);
637 fputs(" bool\n", out);
640 fputs(" tristate\n", out);
643 fputs(" string\n", out);
646 fputs(" integer\n", out);
649 fputs(" hex\n", out);
652 fputs(" ???\n", out);
655 for (prop = sym->prop; prop; prop = prop->next) {
656 if (prop->menu != menu)
658 switch (prop->type) {
660 fputs(" prompt ", out);
661 print_quoted_string(out, prop->text);
662 if (!expr_is_yes(prop->visible.expr)) {
664 expr_fprint(prop->visible.expr, out);
669 fputs( " default ", out);
670 expr_fprint(prop->expr, out);
671 if (!expr_is_yes(prop->visible.expr)) {
673 expr_fprint(prop->visible.expr, out);
678 fputs(" #choice value\n", out);
681 fputs( " select ", out);
682 expr_fprint(prop->expr, out);
686 fputs( " imply ", out);
687 expr_fprint(prop->expr, out);
691 fputs( " range ", out);
692 expr_fprint(prop->expr, out);
696 fputs( " menu ", out);
697 print_quoted_string(out, prop->text);
701 fputs( " symbol ", out);
702 fprintf(out, "%s\n", prop->sym->name);
705 fprintf(out, " unknown prop %d!\n", prop->type);
710 int len = strlen(menu->help);
711 while (menu->help[--len] == '\n')
713 fprintf(out, " help\n%s\n", menu->help);
717 void zconfdump(FILE *out)
719 struct property *prop;
723 menu = rootmenu.list;
725 if ((sym = menu->sym))
726 print_symbol(out, menu);
727 else if ((prop = menu->prompt)) {
728 switch (prop->type) {
730 fputs("\ncomment ", out);
731 print_quoted_string(out, prop->text);
735 fputs("\nmenu ", out);
736 print_quoted_string(out, prop->text);
742 if (!expr_is_yes(prop->visible.expr)) {
743 fputs(" depends ", out);
744 expr_fprint(prop->visible.expr, out);
753 else while ((menu = menu->parent)) {
754 if (menu->prompt && menu->prompt->type == P_MENU)
755 fputs("\nendmenu\n", out);
764 #include "zconf.lex.c"
766 #include "confdata.c"
770 #include "preprocess.c"