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 T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
127 | stmt_list error T_EOL { zconf_error("invalid statement"); }
139 /* config/menuconfig entry */
141 config_entry_start: T_CONFIG nonconst_symbol T_EOL
143 $2->flags |= SYMBOL_OPTIONAL;
145 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
148 config_stmt: config_entry_start config_option_list
150 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
153 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
155 $2->flags |= SYMBOL_OPTIONAL;
157 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
160 menuconfig_stmt: menuconfig_entry_start config_option_list
162 if (current_entry->prompt)
163 current_entry->prompt->type = P_MENU;
165 zconfprint("warning: menuconfig statement without prompt");
166 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
171 | config_option_list config_option
172 | config_option_list symbol_option
173 | config_option_list depends
174 | config_option_list help
177 config_option: T_TYPE prompt_stmt_opt T_EOL
179 menu_set_type($1->stype);
180 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
181 zconf_curname(), zconf_lineno(),
185 config_option: T_PROMPT prompt if_expr T_EOL
187 menu_add_prompt(P_PROMPT, $2, $3);
188 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
191 config_option: T_DEFAULT expr if_expr T_EOL
193 menu_add_expr(P_DEFAULT, $2, $3);
194 if ($1->stype != S_UNKNOWN)
195 menu_set_type($1->stype);
196 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
197 zconf_curname(), zconf_lineno(),
201 config_option: T_SELECT nonconst_symbol if_expr T_EOL
203 menu_add_symbol(P_SELECT, $2, $3);
204 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
207 config_option: T_IMPLY nonconst_symbol if_expr T_EOL
209 menu_add_symbol(P_IMPLY, $2, $3);
210 printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
213 config_option: T_RANGE symbol symbol if_expr T_EOL
215 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
216 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
219 symbol_option: T_OPTION symbol_option_list T_EOL
224 | symbol_option_list T_WORD symbol_option_arg
226 const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
227 if (id && id->flags & TF_OPTION) {
228 menu_add_option(id->token, $3);
232 zconfprint("warning: ignoring unknown option %s", $2);
237 /* empty */ { $$ = NULL; }
238 | T_EQUAL prompt { $$ = $2; }
243 choice: T_CHOICE word_opt T_EOL
245 struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
246 sym->flags |= SYMBOL_NO_WRITE;
248 menu_add_expr(P_CHOICE, NULL, NULL);
250 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
253 choice_entry: choice choice_option_list
255 $$ = menu_add_menu();
260 if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
262 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
266 choice_stmt: choice_entry choice_block choice_end
271 | choice_option_list choice_option
272 | choice_option_list depends
273 | choice_option_list help
276 choice_option: T_PROMPT prompt if_expr T_EOL
278 menu_add_prompt(P_PROMPT, $2, $3);
279 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
282 choice_option: T_TYPE prompt_stmt_opt T_EOL
284 if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
285 menu_set_type($1->stype);
286 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
287 zconf_curname(), zconf_lineno(),
293 choice_option: T_OPTIONAL T_EOL
295 current_entry->sym->flags |= SYMBOL_OPTIONAL;
296 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
299 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
301 if ($1->stype == S_UNKNOWN) {
302 menu_add_symbol(P_DEFAULT, $2, $3);
303 printd(DEBUG_PARSE, "%s:%d:default\n",
304 zconf_curname(), zconf_lineno());
311 | choice_block common_stmt
316 if_entry: T_IF expr T_EOL
318 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
319 menu_add_entry(NULL);
321 $$ = menu_add_menu();
326 if (zconf_endtoken($1, T_IF, T_ENDIF)) {
328 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
332 if_stmt: if_entry stmt_list if_end
337 menu: T_MENU prompt T_EOL
339 menu_add_entry(NULL);
340 menu_add_prompt(P_MENU, $2, NULL);
341 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
344 menu_entry: menu visibility_list depends_list
346 $$ = menu_add_menu();
351 if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
353 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
357 menu_stmt: menu_entry menu_block menu_end
362 | menu_block common_stmt
363 | menu_block menu_stmt
364 | menu_block choice_stmt
367 source_stmt: T_SOURCE prompt T_EOL
369 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
376 comment: T_COMMENT prompt T_EOL
378 menu_add_entry(NULL);
379 menu_add_prompt(P_COMMENT, $2, NULL);
380 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
383 comment_stmt: comment depends_list
388 help_start: T_HELP T_EOL
390 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
394 help: help_start T_HELPTEXT
396 if (current_entry->help) {
397 free(current_entry->help);
398 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
399 current_entry->sym->name ?: "<choice>");
402 /* Is the help text empty or all whitespace? */
403 if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
404 zconfprint("warning: '%s' defined with blank help text",
405 current_entry->sym->name ?: "<choice>");
407 current_entry->help = $2;
414 | depends_list depends
417 depends: T_DEPENDS T_ON expr T_EOL
420 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
423 /* visibility option */
427 | visibility_list visible
430 visible: T_VISIBLE if_expr T_EOL
432 menu_add_visibility($2);
435 /* prompt statement */
441 menu_add_prompt(P_PROMPT, $1, $2);
448 end: T_ENDMENU T_EOL { $$ = $1; }
449 | T_ENDCHOICE T_EOL { $$ = $1; }
450 | T_ENDIF T_EOL { $$ = $1; }
453 if_expr: /* empty */ { $$ = NULL; }
454 | T_IF expr { $$ = $2; }
457 expr: symbol { $$ = expr_alloc_symbol($1); }
458 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
459 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
460 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
461 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
462 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
463 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
464 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
465 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
466 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
467 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
470 /* For symbol definitions, selects, etc., where quotes are not accepted */
471 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
473 symbol: nonconst_symbol
474 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
477 word_opt: /* empty */ { $$ = NULL; }
480 /* assignment statement */
482 assignment_stmt: T_VARIABLE T_ASSIGN assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
485 /* empty */ { $$ = xstrdup(""); };
491 void conf_parse(const char *name)
496 zconf_initscan(name);
500 if (getenv("ZCONF_DEBUG"))
504 /* Variables are expanded in the parse phase. We can free them here. */
510 modules_sym = sym_find( "n" );
512 if (!menu_has_prompt(&rootmenu)) {
513 current_entry = &rootmenu;
514 menu_add_prompt(P_MENU, "Main menu", NULL);
517 menu_finalize(&rootmenu);
518 for_all_symbols(i, sym) {
519 if (sym_check_deps(sym))
524 sym_set_change_count(1);
527 static const char *zconf_tokenname(int token)
530 case T_MENU: return "menu";
531 case T_ENDMENU: return "endmenu";
532 case T_CHOICE: return "choice";
533 case T_ENDCHOICE: return "endchoice";
534 case T_IF: return "if";
535 case T_ENDIF: return "endif";
536 case T_DEPENDS: return "depends";
537 case T_VISIBLE: return "visible";
542 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
544 if (id->token != endtoken) {
545 zconf_error("unexpected '%s' within %s block",
546 id->name, zconf_tokenname(starttoken));
550 if (current_menu->file != current_file) {
551 zconf_error("'%s' in different file than '%s'",
552 id->name, zconf_tokenname(starttoken));
553 fprintf(stderr, "%s:%d: location of the '%s'\n",
554 current_menu->file->name, current_menu->lineno,
555 zconf_tokenname(starttoken));
562 static void zconfprint(const char *err, ...)
566 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
568 vfprintf(stderr, err, ap);
570 fprintf(stderr, "\n");
573 static void zconf_error(const char *err, ...)
578 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
580 vfprintf(stderr, err, ap);
582 fprintf(stderr, "\n");
585 static void yyerror(const char *err)
587 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
590 static void print_quoted_string(FILE *out, const char *str)
596 while ((p = strchr(str, '"'))) {
599 fprintf(out, "%.*s", len, str);
607 static void print_symbol(FILE *out, struct menu *menu)
609 struct symbol *sym = menu->sym;
610 struct property *prop;
612 if (sym_is_choice(sym))
613 fprintf(out, "\nchoice\n");
615 fprintf(out, "\nconfig %s\n", sym->name);
618 fputs(" bool\n", out);
621 fputs(" tristate\n", out);
624 fputs(" string\n", out);
627 fputs(" integer\n", out);
630 fputs(" hex\n", out);
633 fputs(" ???\n", out);
636 for (prop = sym->prop; prop; prop = prop->next) {
637 if (prop->menu != menu)
639 switch (prop->type) {
641 fputs(" prompt ", out);
642 print_quoted_string(out, prop->text);
643 if (!expr_is_yes(prop->visible.expr)) {
645 expr_fprint(prop->visible.expr, out);
650 fputs( " default ", out);
651 expr_fprint(prop->expr, out);
652 if (!expr_is_yes(prop->visible.expr)) {
654 expr_fprint(prop->visible.expr, out);
659 fputs(" #choice value\n", out);
662 fputs( " select ", out);
663 expr_fprint(prop->expr, out);
667 fputs( " imply ", out);
668 expr_fprint(prop->expr, out);
672 fputs( " range ", out);
673 expr_fprint(prop->expr, out);
677 fputs( " menu ", out);
678 print_quoted_string(out, prop->text);
682 fputs( " symbol ", out);
683 fprintf(out, "%s\n", prop->sym->name);
686 fprintf(out, " unknown prop %d!\n", prop->type);
691 int len = strlen(menu->help);
692 while (menu->help[--len] == '\n')
694 fprintf(out, " help\n%s\n", menu->help);
698 void zconfdump(FILE *out)
700 struct property *prop;
704 menu = rootmenu.list;
706 if ((sym = menu->sym))
707 print_symbol(out, menu);
708 else if ((prop = menu->prompt)) {
709 switch (prop->type) {
711 fputs("\ncomment ", out);
712 print_quoted_string(out, prop->text);
716 fputs("\nmenu ", out);
717 print_quoted_string(out, prop->text);
723 if (!expr_is_yes(prop->visible.expr)) {
724 fputs(" depends ", out);
725 expr_fprint(prop->visible.expr, out);
734 else while ((menu = menu->parent)) {
735 if (menu->prompt && menu->prompt->type == P_MENU)
736 fputs("\nendmenu\n", out);
745 #include "zconf.lex.c"
747 #include "confdata.c"
751 #include "preprocess.c"