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 char *tokenname,
28 const char *expected_tokenname);
30 struct symbol *symbol_hash[SYMBOL_HASHSIZE];
32 static struct menu *current_menu, *current_entry;
40 struct symbol *symbol;
43 const struct kconf_id *id;
44 enum symbol_type type;
45 enum variable_flavor flavor;
53 %token <id>T_ENDCHOICE
56 %token <id>T_MENUCONFIG
58 %token <string> T_HELPTEXT
69 %token <string> T_WORD
70 %token <string> T_WORD_QUOTE
71 %token T_ALLNOCONFIG_Y
76 %token T_DEFCONFIG_LIST
88 %token <string> T_ASSIGN_VAL
92 %left T_EQUAL T_UNEQUAL
93 %left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
97 %type <symbol> nonconst_symbol
99 %type <type> type logic_type default
103 %type <menu> if_entry menu_entry choice_entry
104 %type <string> word_opt assign_val
105 %type <flavor> assign_op
108 fprintf(stderr, "%s:%d: missing end statement for this entry\n",
109 $$->file->name, $$->lineno);
110 if (current_menu == $$)
112 } if_entry menu_entry choice_entry
115 /* Include kconf_id.c here so it can see the token constants. */
116 #include "kconf_id.c"
120 input: mainmenu_stmt stmt_list | stmt_list;
124 mainmenu_stmt: T_MAINMENU prompt T_EOL
126 menu_add_prompt(P_MENU, $2, NULL);
131 | stmt_list common_stmt
132 | stmt_list choice_stmt
133 | stmt_list menu_stmt
134 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
135 | stmt_list error T_EOL { zconf_error("invalid statement"); }
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 depends
181 | config_option_list help
184 config_option: type prompt_stmt_opt T_EOL
187 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
188 zconf_curname(), zconf_lineno(),
192 config_option: T_PROMPT prompt if_expr T_EOL
194 menu_add_prompt(P_PROMPT, $2, $3);
195 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
198 config_option: default expr if_expr T_EOL
200 menu_add_expr(P_DEFAULT, $2, $3);
203 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
204 zconf_curname(), zconf_lineno(),
208 config_option: T_SELECT nonconst_symbol if_expr T_EOL
210 menu_add_symbol(P_SELECT, $2, $3);
211 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
214 config_option: T_IMPLY nonconst_symbol if_expr T_EOL
216 menu_add_symbol(P_IMPLY, $2, $3);
217 printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
220 config_option: T_RANGE symbol symbol if_expr T_EOL
222 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
223 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
226 config_option: T_OPTION T_MODULES T_EOL
228 menu_add_option_modules();
231 config_option: T_OPTION T_DEFCONFIG_LIST T_EOL
233 menu_add_option_defconfig_list();
236 config_option: T_OPTION T_ALLNOCONFIG_Y T_EOL
238 menu_add_option_allnoconfig_y();
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, "choice")) {
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: logic_type prompt_stmt_opt T_EOL
285 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
286 zconf_curname(), zconf_lineno(), $1);
289 choice_option: T_OPTIONAL T_EOL
291 current_entry->sym->flags |= SYMBOL_OPTIONAL;
292 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
295 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
297 menu_add_symbol(P_DEFAULT, $2, $3);
298 printd(DEBUG_PARSE, "%s:%d:default\n",
299 zconf_curname(), zconf_lineno());
304 | T_INT { $$ = S_INT; }
305 | T_HEX { $$ = S_HEX; }
306 | T_STRING { $$ = S_STRING; }
309 T_BOOL { $$ = S_BOOLEAN; }
310 | T_TRISTATE { $$ = S_TRISTATE; }
313 T_DEFAULT { $$ = S_UNKNOWN; }
314 | T_DEF_BOOL { $$ = S_BOOLEAN; }
315 | T_DEF_TRISTATE { $$ = S_TRISTATE; }
319 | choice_block common_stmt
324 if_entry: T_IF expr T_EOL
326 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
327 menu_add_entry(NULL);
329 $$ = menu_add_menu();
334 if (zconf_endtoken($1, "if")) {
336 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
340 if_stmt: if_entry stmt_list if_end
345 menu: T_MENU prompt T_EOL
347 menu_add_entry(NULL);
348 menu_add_prompt(P_MENU, $2, NULL);
349 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
352 menu_entry: menu menu_option_list
354 $$ = menu_add_menu();
359 if (zconf_endtoken($1, "menu")) {
361 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
365 menu_stmt: menu_entry stmt_list menu_end
370 | menu_option_list visible
371 | menu_option_list depends
374 source_stmt: T_SOURCE prompt T_EOL
376 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
383 comment: T_COMMENT prompt T_EOL
385 menu_add_entry(NULL);
386 menu_add_prompt(P_COMMENT, $2, NULL);
387 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
390 comment_stmt: comment comment_option_list
395 | comment_option_list depends
400 help_start: T_HELP T_EOL
402 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
406 help: help_start T_HELPTEXT
408 if (current_entry->help) {
409 free(current_entry->help);
410 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
411 current_entry->sym->name ?: "<choice>");
414 /* Is the help text empty or all whitespace? */
415 if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
416 zconfprint("warning: '%s' defined with blank help text",
417 current_entry->sym->name ?: "<choice>");
419 current_entry->help = $2;
424 depends: T_DEPENDS T_ON expr T_EOL
427 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
430 /* visibility option */
431 visible: T_VISIBLE if_expr T_EOL
433 menu_add_visibility($2);
436 /* prompt statement */
442 menu_add_prompt(P_PROMPT, $1, $2);
449 end: T_ENDMENU T_EOL { $$ = "menu"; }
450 | T_ENDCHOICE T_EOL { $$ = "choice"; }
451 | T_ENDIF T_EOL { $$ = "if"; }
454 if_expr: /* empty */ { $$ = NULL; }
455 | T_IF expr { $$ = $2; }
458 expr: symbol { $$ = expr_alloc_symbol($1); }
459 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
460 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
461 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
462 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
463 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
464 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
465 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
466 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
467 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
468 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
471 /* For symbol definitions, selects, etc., where quotes are not accepted */
472 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
474 symbol: nonconst_symbol
475 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
478 word_opt: /* empty */ { $$ = NULL; }
481 /* assignment statement */
483 assignment_stmt: T_WORD assign_op assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
486 T_EQUAL { $$ = VAR_RECURSIVE; }
487 | T_COLON_EQUAL { $$ = VAR_SIMPLE; }
488 | T_PLUS_EQUAL { $$ = VAR_APPEND; }
492 /* empty */ { $$ = xstrdup(""); };
498 void conf_parse(const char *name)
503 zconf_initscan(name);
506 rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL);
508 if (getenv("ZCONF_DEBUG"))
512 /* Variables are expanded in the parse phase. We can free them here. */
518 modules_sym = sym_find( "n" );
520 if (!menu_has_prompt(&rootmenu)) {
521 current_entry = &rootmenu;
522 menu_add_prompt(P_MENU, "Main menu", NULL);
525 menu_finalize(&rootmenu);
526 for_all_symbols(i, sym) {
527 if (sym_check_deps(sym))
532 sym_set_change_count(1);
535 static bool zconf_endtoken(const char *tokenname,
536 const char *expected_tokenname)
538 if (strcmp(tokenname, expected_tokenname)) {
539 zconf_error("unexpected '%s' within %s block",
540 tokenname, expected_tokenname);
544 if (current_menu->file != current_file) {
545 zconf_error("'%s' in different file than '%s'",
546 tokenname, expected_tokenname);
547 fprintf(stderr, "%s:%d: location of the '%s'\n",
548 current_menu->file->name, current_menu->lineno,
556 static void zconfprint(const char *err, ...)
560 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
562 vfprintf(stderr, err, ap);
564 fprintf(stderr, "\n");
567 static void zconf_error(const char *err, ...)
572 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
574 vfprintf(stderr, err, ap);
576 fprintf(stderr, "\n");
579 static void yyerror(const char *err)
581 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
584 static void print_quoted_string(FILE *out, const char *str)
590 while ((p = strchr(str, '"'))) {
593 fprintf(out, "%.*s", len, str);
601 static void print_symbol(FILE *out, struct menu *menu)
603 struct symbol *sym = menu->sym;
604 struct property *prop;
606 if (sym_is_choice(sym))
607 fprintf(out, "\nchoice\n");
609 fprintf(out, "\nconfig %s\n", sym->name);
612 fputs(" bool\n", out);
615 fputs(" tristate\n", out);
618 fputs(" string\n", out);
621 fputs(" integer\n", out);
624 fputs(" hex\n", out);
627 fputs(" ???\n", out);
630 for (prop = sym->prop; prop; prop = prop->next) {
631 if (prop->menu != menu)
633 switch (prop->type) {
635 fputs(" prompt ", out);
636 print_quoted_string(out, prop->text);
637 if (!expr_is_yes(prop->visible.expr)) {
639 expr_fprint(prop->visible.expr, out);
644 fputs( " default ", out);
645 expr_fprint(prop->expr, out);
646 if (!expr_is_yes(prop->visible.expr)) {
648 expr_fprint(prop->visible.expr, out);
653 fputs(" #choice value\n", out);
656 fputs( " select ", out);
657 expr_fprint(prop->expr, out);
661 fputs( " imply ", out);
662 expr_fprint(prop->expr, out);
666 fputs( " range ", out);
667 expr_fprint(prop->expr, out);
671 fputs( " menu ", out);
672 print_quoted_string(out, prop->text);
676 fputs( " symbol ", out);
677 fprintf(out, "%s\n", prop->sym->name);
680 fprintf(out, " unknown prop %d!\n", prop->type);
685 int len = strlen(menu->help);
686 while (menu->help[--len] == '\n')
688 fprintf(out, " help\n%s\n", menu->help);
692 void zconfdump(FILE *out)
694 struct property *prop;
698 menu = rootmenu.list;
700 if ((sym = menu->sym))
701 print_symbol(out, menu);
702 else if ((prop = menu->prompt)) {
703 switch (prop->type) {
705 fputs("\ncomment ", out);
706 print_quoted_string(out, prop->text);
710 fputs("\nmenu ", out);
711 print_quoted_string(out, prop->text);
717 if (!expr_is_yes(prop->visible.expr)) {
718 fputs(" depends ", out);
719 expr_fprint(prop->visible.expr, out);
728 else while ((menu = menu->parent)) {
729 if (menu->prompt && menu->prompt->type == P_MENU)
730 fputs("\nendmenu\n", out);
739 #include "zconf.lex.c"
741 #include "confdata.c"
745 #include "preprocess.c"