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 variable_flavor flavor;
51 %token <id>T_ENDCHOICE
54 %token <id>T_MENUCONFIG
56 %token <string> T_HELPTEXT
70 %token <string> T_WORD
71 %token <string> T_WORD_QUOTE
76 %token T_GREATER_EQUAL
80 %token <string> T_VARIABLE
81 %token <flavor> T_ASSIGN
82 %token <string> T_ASSIGN_VAL
86 %left T_EQUAL T_UNEQUAL
87 %left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
91 %type <symbol> nonconst_symbol
96 %type <menu> if_entry menu_entry choice_entry
97 %type <string> symbol_option_arg word_opt assign_val
100 fprintf(stderr, "%s:%d: missing end statement for this entry\n",
101 $$->file->name, $$->lineno);
102 if (current_menu == $$)
104 } if_entry menu_entry choice_entry
107 /* Include kconf_id.c here so it can see the token constants. */
108 #include "kconf_id.c"
112 input: mainmenu_stmt stmt_list | stmt_list;
116 mainmenu_stmt: T_MAINMENU prompt T_EOL
118 menu_add_prompt(P_MENU, $2, NULL);
123 | stmt_list common_stmt
124 | stmt_list choice_stmt
125 | stmt_list menu_stmt
126 | stmt_list end { zconf_error("unexpected end statement"); }
127 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
128 | stmt_list error T_EOL { zconf_error("invalid statement"); }
140 /* config/menuconfig entry */
142 config_entry_start: T_CONFIG nonconst_symbol T_EOL
144 $2->flags |= SYMBOL_OPTIONAL;
146 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
149 config_stmt: config_entry_start config_option_list
151 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
154 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
156 $2->flags |= SYMBOL_OPTIONAL;
158 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
161 menuconfig_stmt: menuconfig_entry_start config_option_list
163 if (current_entry->prompt)
164 current_entry->prompt->type = P_MENU;
166 zconfprint("warning: menuconfig statement without prompt");
167 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
172 | config_option_list config_option
173 | config_option_list symbol_option
174 | config_option_list depends
175 | config_option_list help
178 config_option: T_TYPE prompt_stmt_opt T_EOL
180 menu_set_type($1->stype);
181 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
182 zconf_curname(), zconf_lineno(),
186 config_option: T_PROMPT prompt if_expr T_EOL
188 menu_add_prompt(P_PROMPT, $2, $3);
189 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
192 config_option: T_DEFAULT expr if_expr T_EOL
194 menu_add_expr(P_DEFAULT, $2, $3);
195 if ($1->stype != S_UNKNOWN)
196 menu_set_type($1->stype);
197 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
198 zconf_curname(), zconf_lineno(),
202 config_option: T_SELECT nonconst_symbol if_expr T_EOL
204 menu_add_symbol(P_SELECT, $2, $3);
205 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
208 config_option: T_IMPLY nonconst_symbol if_expr T_EOL
210 menu_add_symbol(P_IMPLY, $2, $3);
211 printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
214 config_option: T_RANGE symbol symbol if_expr T_EOL
216 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
217 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
220 symbol_option: T_OPTION symbol_option_list T_EOL
225 | symbol_option_list T_WORD symbol_option_arg
227 const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
228 if (id && id->flags & TF_OPTION) {
229 menu_add_option(id->token, $3);
233 zconfprint("warning: ignoring unknown option %s", $2);
238 /* empty */ { $$ = NULL; }
239 | T_EQUAL prompt { $$ = $2; }
244 choice: T_CHOICE word_opt T_EOL
246 struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
247 sym->flags |= SYMBOL_NO_WRITE;
249 menu_add_expr(P_CHOICE, NULL, NULL);
251 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
254 choice_entry: choice choice_option_list
256 $$ = menu_add_menu();
261 if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
263 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
267 choice_stmt: choice_entry choice_block choice_end
272 | choice_option_list choice_option
273 | choice_option_list depends
274 | choice_option_list help
277 choice_option: T_PROMPT prompt if_expr T_EOL
279 menu_add_prompt(P_PROMPT, $2, $3);
280 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
283 choice_option: T_TYPE prompt_stmt_opt T_EOL
285 if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
286 menu_set_type($1->stype);
287 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
288 zconf_curname(), zconf_lineno(),
294 choice_option: T_OPTIONAL T_EOL
296 current_entry->sym->flags |= SYMBOL_OPTIONAL;
297 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
300 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
302 if ($1->stype == S_UNKNOWN) {
303 menu_add_symbol(P_DEFAULT, $2, $3);
304 printd(DEBUG_PARSE, "%s:%d:default\n",
305 zconf_curname(), zconf_lineno());
312 | choice_block common_stmt
317 if_entry: T_IF expr T_EOL
319 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
320 menu_add_entry(NULL);
322 $$ = menu_add_menu();
327 if (zconf_endtoken($1, T_IF, T_ENDIF)) {
329 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
333 if_stmt: if_entry if_block if_end
338 | if_block common_stmt
340 | if_block choice_stmt
345 menu: T_MENU prompt T_EOL
347 menu_add_entry(NULL);
348 menu_add_prompt(P_MENU, $2, NULL);
349 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
352 menu_entry: menu visibility_list depends_list
354 $$ = menu_add_menu();
359 if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
361 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
365 menu_stmt: menu_entry menu_block menu_end
370 | menu_block common_stmt
371 | menu_block menu_stmt
372 | menu_block choice_stmt
375 source_stmt: T_SOURCE prompt T_EOL
377 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
384 comment: T_COMMENT prompt T_EOL
386 menu_add_entry(NULL);
387 menu_add_prompt(P_COMMENT, $2, NULL);
388 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
391 comment_stmt: comment depends_list
396 help_start: T_HELP T_EOL
398 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
402 help: help_start T_HELPTEXT
404 if (current_entry->help) {
405 free(current_entry->help);
406 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
407 current_entry->sym->name ?: "<choice>");
410 /* Is the help text empty or all whitespace? */
411 if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
412 zconfprint("warning: '%s' defined with blank help text",
413 current_entry->sym->name ?: "<choice>");
415 current_entry->help = $2;
422 | depends_list depends
425 depends: T_DEPENDS T_ON expr T_EOL
428 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
431 /* visibility option */
435 | visibility_list visible
438 visible: T_VISIBLE if_expr T_EOL
440 menu_add_visibility($2);
443 /* prompt statement */
449 menu_add_prompt(P_PROMPT, $1, $2);
456 end: T_ENDMENU T_EOL { $$ = $1; }
457 | T_ENDCHOICE T_EOL { $$ = $1; }
458 | T_ENDIF T_EOL { $$ = $1; }
461 if_expr: /* empty */ { $$ = NULL; }
462 | T_IF expr { $$ = $2; }
465 expr: symbol { $$ = expr_alloc_symbol($1); }
466 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
467 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
468 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
469 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
470 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
471 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
472 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
473 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
474 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
475 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
478 /* For symbol definitions, selects, etc., where quotes are not accepted */
479 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
481 symbol: nonconst_symbol
482 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
485 word_opt: /* empty */ { $$ = NULL; }
488 /* assignment statement */
490 assignment_stmt: T_VARIABLE T_ASSIGN assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
493 /* empty */ { $$ = xstrdup(""); };
499 void conf_parse(const char *name)
504 zconf_initscan(name);
507 rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL);
509 if (getenv("ZCONF_DEBUG"))
513 /* Variables are expanded in the parse phase. We can free them here. */
519 modules_sym = sym_find( "n" );
521 if (!menu_has_prompt(&rootmenu)) {
522 current_entry = &rootmenu;
523 menu_add_prompt(P_MENU, "Main menu", NULL);
526 menu_finalize(&rootmenu);
527 for_all_symbols(i, sym) {
528 if (sym_check_deps(sym))
533 sym_set_change_count(1);
536 static const char *zconf_tokenname(int token)
539 case T_MENU: return "menu";
540 case T_ENDMENU: return "endmenu";
541 case T_CHOICE: return "choice";
542 case T_ENDCHOICE: return "endchoice";
543 case T_IF: return "if";
544 case T_ENDIF: return "endif";
545 case T_DEPENDS: return "depends";
546 case T_VISIBLE: return "visible";
551 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
553 if (id->token != endtoken) {
554 zconf_error("unexpected '%s' within %s block",
555 id->name, zconf_tokenname(starttoken));
559 if (current_menu->file != current_file) {
560 zconf_error("'%s' in different file than '%s'",
561 id->name, zconf_tokenname(starttoken));
562 fprintf(stderr, "%s:%d: location of the '%s'\n",
563 current_menu->file->name, current_menu->lineno,
564 zconf_tokenname(starttoken));
571 static void zconfprint(const char *err, ...)
575 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
577 vfprintf(stderr, err, ap);
579 fprintf(stderr, "\n");
582 static void zconf_error(const char *err, ...)
587 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
589 vfprintf(stderr, err, ap);
591 fprintf(stderr, "\n");
594 static void yyerror(const char *err)
596 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
599 static void print_quoted_string(FILE *out, const char *str)
605 while ((p = strchr(str, '"'))) {
608 fprintf(out, "%.*s", len, str);
616 static void print_symbol(FILE *out, struct menu *menu)
618 struct symbol *sym = menu->sym;
619 struct property *prop;
621 if (sym_is_choice(sym))
622 fprintf(out, "\nchoice\n");
624 fprintf(out, "\nconfig %s\n", sym->name);
627 fputs(" bool\n", out);
630 fputs(" tristate\n", out);
633 fputs(" string\n", out);
636 fputs(" integer\n", out);
639 fputs(" hex\n", out);
642 fputs(" ???\n", out);
645 for (prop = sym->prop; prop; prop = prop->next) {
646 if (prop->menu != menu)
648 switch (prop->type) {
650 fputs(" prompt ", out);
651 print_quoted_string(out, prop->text);
652 if (!expr_is_yes(prop->visible.expr)) {
654 expr_fprint(prop->visible.expr, out);
659 fputs( " default ", out);
660 expr_fprint(prop->expr, out);
661 if (!expr_is_yes(prop->visible.expr)) {
663 expr_fprint(prop->visible.expr, out);
668 fputs(" #choice value\n", out);
671 fputs( " select ", out);
672 expr_fprint(prop->expr, out);
676 fputs( " imply ", out);
677 expr_fprint(prop->expr, out);
681 fputs( " range ", out);
682 expr_fprint(prop->expr, out);
686 fputs( " menu ", out);
687 print_quoted_string(out, prop->text);
691 fputs( " symbol ", out);
692 fprintf(out, "%s\n", prop->sym->name);
695 fprintf(out, " unknown prop %d!\n", prop->type);
700 int len = strlen(menu->help);
701 while (menu->help[--len] == '\n')
703 fprintf(out, " help\n%s\n", menu->help);
707 void zconfdump(FILE *out)
709 struct property *prop;
713 menu = rootmenu.list;
715 if ((sym = menu->sym))
716 print_symbol(out, menu);
717 else if ((prop = menu->prompt)) {
718 switch (prop->type) {
720 fputs("\ncomment ", out);
721 print_quoted_string(out, prop->text);
725 fputs("\nmenu ", out);
726 print_quoted_string(out, prop->text);
732 if (!expr_is_yes(prop->visible.expr)) {
733 fputs(" depends ", out);
734 expr_fprint(prop->visible.expr, out);
743 else while ((menu = menu->parent)) {
744 if (menu->prompt && menu->prompt->type == P_MENU)
745 fputs("\nendmenu\n", out);
754 #include "zconf.lex.c"
756 #include "confdata.c"
760 #include "preprocess.c"