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 <id> option_name
98 %type <menu> if_entry menu_entry choice_entry
99 %type <string> symbol_option_arg word_opt assign_val
102 fprintf(stderr, "%s:%d: missing end statement for this entry\n",
103 $$->file->name, $$->lineno);
104 if (current_menu == $$)
106 } if_entry menu_entry choice_entry
109 /* Include kconf_id.c here so it can see the token constants. */
110 #include "kconf_id.c"
114 input: mainmenu_stmt stmt_list | stmt_list;
118 mainmenu_stmt: T_MAINMENU prompt T_EOL
120 menu_add_prompt(P_MENU, $2, NULL);
125 | stmt_list common_stmt
126 | stmt_list choice_stmt
127 | stmt_list menu_stmt
128 | stmt_list end { zconf_error("unexpected end statement"); }
129 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
130 | stmt_list option_name error T_EOL
132 zconf_error("unexpected option \"%s\"", $2->name);
134 | stmt_list error T_EOL { zconf_error("invalid statement"); }
138 T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_IMPLY | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE
151 T_WORD error T_EOL { zconf_error("unknown option \"%s\"", $1); }
152 | error T_EOL { zconf_error("invalid option"); }
156 /* config/menuconfig entry */
158 config_entry_start: T_CONFIG nonconst_symbol T_EOL
160 $2->flags |= SYMBOL_OPTIONAL;
162 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
165 config_stmt: config_entry_start config_option_list
167 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
170 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
172 $2->flags |= SYMBOL_OPTIONAL;
174 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
177 menuconfig_stmt: menuconfig_entry_start config_option_list
179 if (current_entry->prompt)
180 current_entry->prompt->type = P_MENU;
182 zconfprint("warning: menuconfig statement without prompt");
183 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
188 | config_option_list config_option
189 | config_option_list symbol_option
190 | config_option_list depends
191 | config_option_list help
192 | config_option_list option_error
195 config_option: T_TYPE prompt_stmt_opt T_EOL
197 menu_set_type($1->stype);
198 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
199 zconf_curname(), zconf_lineno(),
203 config_option: T_PROMPT prompt if_expr T_EOL
205 menu_add_prompt(P_PROMPT, $2, $3);
206 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
209 config_option: T_DEFAULT expr if_expr T_EOL
211 menu_add_expr(P_DEFAULT, $2, $3);
212 if ($1->stype != S_UNKNOWN)
213 menu_set_type($1->stype);
214 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
215 zconf_curname(), zconf_lineno(),
219 config_option: T_SELECT nonconst_symbol if_expr T_EOL
221 menu_add_symbol(P_SELECT, $2, $3);
222 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
225 config_option: T_IMPLY nonconst_symbol if_expr T_EOL
227 menu_add_symbol(P_IMPLY, $2, $3);
228 printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
231 config_option: T_RANGE symbol symbol if_expr T_EOL
233 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
234 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
237 symbol_option: T_OPTION symbol_option_list T_EOL
242 | symbol_option_list T_WORD symbol_option_arg
244 const struct kconf_id *id = kconf_id_lookup($2, strlen($2));
245 if (id && id->flags & TF_OPTION) {
246 menu_add_option(id->token, $3);
250 zconfprint("warning: ignoring unknown option %s", $2);
255 /* empty */ { $$ = NULL; }
256 | T_EQUAL prompt { $$ = $2; }
261 choice: T_CHOICE word_opt T_EOL
263 struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
264 sym->flags |= SYMBOL_NO_WRITE;
266 menu_add_expr(P_CHOICE, NULL, NULL);
268 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
271 choice_entry: choice choice_option_list
273 $$ = menu_add_menu();
278 if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
280 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
284 choice_stmt: choice_entry choice_block choice_end
289 | choice_option_list choice_option
290 | choice_option_list depends
291 | choice_option_list help
292 | choice_option_list option_error
295 choice_option: T_PROMPT prompt if_expr T_EOL
297 menu_add_prompt(P_PROMPT, $2, $3);
298 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
301 choice_option: T_TYPE prompt_stmt_opt T_EOL
303 if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
304 menu_set_type($1->stype);
305 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
306 zconf_curname(), zconf_lineno(),
312 choice_option: T_OPTIONAL T_EOL
314 current_entry->sym->flags |= SYMBOL_OPTIONAL;
315 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
318 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
320 if ($1->stype == S_UNKNOWN) {
321 menu_add_symbol(P_DEFAULT, $2, $3);
322 printd(DEBUG_PARSE, "%s:%d:default\n",
323 zconf_curname(), zconf_lineno());
330 | choice_block common_stmt
335 if_entry: T_IF expr T_EOL
337 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
338 menu_add_entry(NULL);
340 $$ = menu_add_menu();
345 if (zconf_endtoken($1, T_IF, T_ENDIF)) {
347 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
351 if_stmt: if_entry if_block if_end
356 | if_block common_stmt
358 | if_block choice_stmt
363 menu: T_MENU prompt T_EOL
365 menu_add_entry(NULL);
366 menu_add_prompt(P_MENU, $2, NULL);
367 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
370 menu_entry: menu visibility_list depends_list
372 $$ = menu_add_menu();
377 if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
379 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
383 menu_stmt: menu_entry menu_block menu_end
388 | menu_block common_stmt
389 | menu_block menu_stmt
390 | menu_block choice_stmt
393 source_stmt: T_SOURCE prompt T_EOL
395 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
402 comment: T_COMMENT prompt T_EOL
404 menu_add_entry(NULL);
405 menu_add_prompt(P_COMMENT, $2, NULL);
406 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
409 comment_stmt: comment depends_list
414 help_start: T_HELP T_EOL
416 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
420 help: help_start T_HELPTEXT
422 if (current_entry->help) {
423 free(current_entry->help);
424 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
425 current_entry->sym->name ?: "<choice>");
428 /* Is the help text empty or all whitespace? */
429 if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
430 zconfprint("warning: '%s' defined with blank help text",
431 current_entry->sym->name ?: "<choice>");
433 current_entry->help = $2;
440 | depends_list depends
441 | depends_list option_error
444 depends: T_DEPENDS T_ON expr T_EOL
447 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
450 /* visibility option */
454 | visibility_list visible
457 visible: T_VISIBLE if_expr T_EOL
459 menu_add_visibility($2);
462 /* prompt statement */
468 menu_add_prompt(P_PROMPT, $1, $2);
475 end: T_ENDMENU T_EOL { $$ = $1; }
476 | T_ENDCHOICE T_EOL { $$ = $1; }
477 | T_ENDIF T_EOL { $$ = $1; }
480 if_expr: /* empty */ { $$ = NULL; }
481 | T_IF expr { $$ = $2; }
484 expr: symbol { $$ = expr_alloc_symbol($1); }
485 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
486 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
487 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
488 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
489 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
490 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
491 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
492 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
493 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
494 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
497 /* For symbol definitions, selects, etc., where quotes are not accepted */
498 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
500 symbol: nonconst_symbol
501 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
504 word_opt: /* empty */ { $$ = NULL; }
507 /* assignment statement */
509 assignment_stmt: T_VARIABLE T_ASSIGN assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
512 /* empty */ { $$ = xstrdup(""); };
518 void conf_parse(const char *name)
523 zconf_initscan(name);
526 rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL);
528 if (getenv("ZCONF_DEBUG"))
532 /* Variables are expanded in the parse phase. We can free them here. */
538 modules_sym = sym_find( "n" );
540 if (!menu_has_prompt(&rootmenu)) {
541 current_entry = &rootmenu;
542 menu_add_prompt(P_MENU, "Main menu", NULL);
545 menu_finalize(&rootmenu);
546 for_all_symbols(i, sym) {
547 if (sym_check_deps(sym))
552 sym_set_change_count(1);
555 static const char *zconf_tokenname(int token)
558 case T_MENU: return "menu";
559 case T_ENDMENU: return "endmenu";
560 case T_CHOICE: return "choice";
561 case T_ENDCHOICE: return "endchoice";
562 case T_IF: return "if";
563 case T_ENDIF: return "endif";
564 case T_DEPENDS: return "depends";
565 case T_VISIBLE: return "visible";
570 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken)
572 if (id->token != endtoken) {
573 zconf_error("unexpected '%s' within %s block",
574 id->name, zconf_tokenname(starttoken));
578 if (current_menu->file != current_file) {
579 zconf_error("'%s' in different file than '%s'",
580 id->name, zconf_tokenname(starttoken));
581 fprintf(stderr, "%s:%d: location of the '%s'\n",
582 current_menu->file->name, current_menu->lineno,
583 zconf_tokenname(starttoken));
590 static void zconfprint(const char *err, ...)
594 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
596 vfprintf(stderr, err, ap);
598 fprintf(stderr, "\n");
601 static void zconf_error(const char *err, ...)
606 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
608 vfprintf(stderr, err, ap);
610 fprintf(stderr, "\n");
613 static void yyerror(const char *err)
615 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
618 static void print_quoted_string(FILE *out, const char *str)
624 while ((p = strchr(str, '"'))) {
627 fprintf(out, "%.*s", len, str);
635 static void print_symbol(FILE *out, struct menu *menu)
637 struct symbol *sym = menu->sym;
638 struct property *prop;
640 if (sym_is_choice(sym))
641 fprintf(out, "\nchoice\n");
643 fprintf(out, "\nconfig %s\n", sym->name);
646 fputs(" bool\n", out);
649 fputs(" tristate\n", out);
652 fputs(" string\n", out);
655 fputs(" integer\n", out);
658 fputs(" hex\n", out);
661 fputs(" ???\n", out);
664 for (prop = sym->prop; prop; prop = prop->next) {
665 if (prop->menu != menu)
667 switch (prop->type) {
669 fputs(" prompt ", out);
670 print_quoted_string(out, prop->text);
671 if (!expr_is_yes(prop->visible.expr)) {
673 expr_fprint(prop->visible.expr, out);
678 fputs( " default ", out);
679 expr_fprint(prop->expr, out);
680 if (!expr_is_yes(prop->visible.expr)) {
682 expr_fprint(prop->visible.expr, out);
687 fputs(" #choice value\n", out);
690 fputs( " select ", out);
691 expr_fprint(prop->expr, out);
695 fputs( " imply ", out);
696 expr_fprint(prop->expr, out);
700 fputs( " range ", out);
701 expr_fprint(prop->expr, out);
705 fputs( " menu ", out);
706 print_quoted_string(out, prop->text);
710 fputs( " symbol ", out);
711 fprintf(out, "%s\n", prop->sym->name);
714 fprintf(out, " unknown prop %d!\n", prop->type);
719 int len = strlen(menu->help);
720 while (menu->help[--len] == '\n')
722 fprintf(out, " help\n%s\n", menu->help);
726 void zconfdump(FILE *out)
728 struct property *prop;
732 menu = rootmenu.list;
734 if ((sym = menu->sym))
735 print_symbol(out, menu);
736 else if ((prop = menu->prompt)) {
737 switch (prop->type) {
739 fputs("\ncomment ", out);
740 print_quoted_string(out, prop->text);
744 fputs("\nmenu ", out);
745 print_quoted_string(out, prop->text);
751 if (!expr_is_yes(prop->visible.expr)) {
752 fputs(" depends ", out);
753 expr_fprint(prop->visible.expr, out);
762 else while ((menu = menu->parent)) {
763 if (menu->prompt && menu->prompt->type == P_MENU)
764 fputs("\nendmenu\n", out);
773 #include "zconf.lex.c"
775 #include "confdata.c"
779 #include "preprocess.c"