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 enum symbol_type type;
44 enum variable_flavor flavor;
47 %token <string> T_HELPTEXT
48 %token <string> T_WORD
49 %token <string> T_WORD_QUOTE
50 %token T_ALLNOCONFIG_Y
58 %token T_DEFCONFIG_LIST
87 %token <string> T_ASSIGN_VAL
91 %left T_EQUAL T_UNEQUAL
92 %left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
96 %type <symbol> nonconst_symbol
98 %type <type> type logic_type default
102 %type <menu> if_entry menu_entry choice_entry
103 %type <string> word_opt assign_val
104 %type <flavor> assign_op
107 fprintf(stderr, "%s:%d: missing end statement for this entry\n",
108 $$->file->name, $$->lineno);
109 if (current_menu == $$)
111 } if_entry menu_entry choice_entry
114 /* Include kconf_id.c here so it can see the token constants. */
115 #include "kconf_id.c"
119 input: mainmenu_stmt stmt_list | stmt_list;
123 mainmenu_stmt: T_MAINMENU prompt T_EOL
125 menu_add_prompt(P_MENU, $2, NULL);
130 | stmt_list common_stmt
131 | stmt_list choice_stmt
132 | stmt_list menu_stmt
133 | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
134 | stmt_list error T_EOL { zconf_error("invalid statement"); }
146 /* config/menuconfig entry */
148 config_entry_start: T_CONFIG nonconst_symbol T_EOL
150 $2->flags |= SYMBOL_OPTIONAL;
152 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
155 config_stmt: config_entry_start config_option_list
157 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
160 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
162 $2->flags |= SYMBOL_OPTIONAL;
164 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
167 menuconfig_stmt: menuconfig_entry_start config_option_list
169 if (current_entry->prompt)
170 current_entry->prompt->type = P_MENU;
172 zconfprint("warning: menuconfig statement without prompt");
173 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
178 | config_option_list config_option
179 | config_option_list depends
180 | config_option_list help
183 config_option: type prompt_stmt_opt T_EOL
186 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
187 zconf_curname(), zconf_lineno(),
191 config_option: T_PROMPT prompt if_expr T_EOL
193 menu_add_prompt(P_PROMPT, $2, $3);
194 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
197 config_option: default expr if_expr T_EOL
199 menu_add_expr(P_DEFAULT, $2, $3);
202 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
203 zconf_curname(), zconf_lineno(),
207 config_option: T_SELECT nonconst_symbol if_expr T_EOL
209 menu_add_symbol(P_SELECT, $2, $3);
210 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
213 config_option: T_IMPLY nonconst_symbol if_expr T_EOL
215 menu_add_symbol(P_IMPLY, $2, $3);
216 printd(DEBUG_PARSE, "%s:%d:imply\n", zconf_curname(), zconf_lineno());
219 config_option: T_RANGE symbol symbol if_expr T_EOL
221 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
222 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
225 config_option: T_OPTION T_MODULES T_EOL
227 menu_add_option_modules();
230 config_option: T_OPTION T_DEFCONFIG_LIST T_EOL
232 menu_add_option_defconfig_list();
235 config_option: T_OPTION T_ALLNOCONFIG_Y T_EOL
237 menu_add_option_allnoconfig_y();
242 choice: T_CHOICE word_opt T_EOL
244 struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
245 sym->flags |= SYMBOL_NO_WRITE;
247 menu_add_expr(P_CHOICE, NULL, NULL);
249 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
252 choice_entry: choice choice_option_list
254 $$ = menu_add_menu();
259 if (zconf_endtoken($1, "choice")) {
261 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
265 choice_stmt: choice_entry choice_block choice_end
270 | choice_option_list choice_option
271 | choice_option_list depends
272 | choice_option_list help
275 choice_option: T_PROMPT prompt if_expr T_EOL
277 menu_add_prompt(P_PROMPT, $2, $3);
278 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
281 choice_option: logic_type prompt_stmt_opt T_EOL
284 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
285 zconf_curname(), zconf_lineno(), $1);
288 choice_option: T_OPTIONAL T_EOL
290 current_entry->sym->flags |= SYMBOL_OPTIONAL;
291 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
294 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
296 menu_add_symbol(P_DEFAULT, $2, $3);
297 printd(DEBUG_PARSE, "%s:%d:default\n",
298 zconf_curname(), zconf_lineno());
303 | T_INT { $$ = S_INT; }
304 | T_HEX { $$ = S_HEX; }
305 | T_STRING { $$ = S_STRING; }
308 T_BOOL { $$ = S_BOOLEAN; }
309 | T_TRISTATE { $$ = S_TRISTATE; }
312 T_DEFAULT { $$ = S_UNKNOWN; }
313 | T_DEF_BOOL { $$ = S_BOOLEAN; }
314 | T_DEF_TRISTATE { $$ = S_TRISTATE; }
318 | choice_block common_stmt
323 if_entry: T_IF expr T_EOL
325 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
326 menu_add_entry(NULL);
328 $$ = menu_add_menu();
333 if (zconf_endtoken($1, "if")) {
335 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
339 if_stmt: if_entry stmt_list if_end
344 menu: T_MENU prompt T_EOL
346 menu_add_entry(NULL);
347 menu_add_prompt(P_MENU, $2, NULL);
348 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
351 menu_entry: menu menu_option_list
353 $$ = menu_add_menu();
358 if (zconf_endtoken($1, "menu")) {
360 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
364 menu_stmt: menu_entry stmt_list menu_end
369 | menu_option_list visible
370 | menu_option_list depends
373 source_stmt: T_SOURCE prompt T_EOL
375 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
382 comment: T_COMMENT prompt T_EOL
384 menu_add_entry(NULL);
385 menu_add_prompt(P_COMMENT, $2, NULL);
386 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
389 comment_stmt: comment comment_option_list
394 | comment_option_list depends
399 help_start: T_HELP T_EOL
401 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
405 help: help_start T_HELPTEXT
407 if (current_entry->help) {
408 free(current_entry->help);
409 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
410 current_entry->sym->name ?: "<choice>");
413 /* Is the help text empty or all whitespace? */
414 if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
415 zconfprint("warning: '%s' defined with blank help text",
416 current_entry->sym->name ?: "<choice>");
418 current_entry->help = $2;
423 depends: T_DEPENDS T_ON expr T_EOL
426 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
429 /* visibility option */
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 { $$ = "menu"; }
449 | T_ENDCHOICE T_EOL { $$ = "choice"; }
450 | T_ENDIF T_EOL { $$ = "if"; }
453 if_expr: /* empty */ { $$ = 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 */ { $$ = NULL; }
480 /* assignment statement */
482 assignment_stmt: T_WORD assign_op assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
485 T_EQUAL { $$ = VAR_RECURSIVE; }
486 | T_COLON_EQUAL { $$ = VAR_SIMPLE; }
487 | T_PLUS_EQUAL { $$ = VAR_APPEND; }
491 /* empty */ { $$ = xstrdup(""); };
497 void conf_parse(const char *name)
502 zconf_initscan(name);
505 rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL);
507 if (getenv("ZCONF_DEBUG"))
511 /* Variables are expanded in the parse phase. We can free them here. */
517 modules_sym = sym_find( "n" );
519 if (!menu_has_prompt(&rootmenu)) {
520 current_entry = &rootmenu;
521 menu_add_prompt(P_MENU, "Main menu", NULL);
524 menu_finalize(&rootmenu);
525 for_all_symbols(i, sym) {
526 if (sym_check_deps(sym))
531 sym_set_change_count(1);
534 static bool zconf_endtoken(const char *tokenname,
535 const char *expected_tokenname)
537 if (strcmp(tokenname, expected_tokenname)) {
538 zconf_error("unexpected '%s' within %s block",
539 tokenname, expected_tokenname);
543 if (current_menu->file != current_file) {
544 zconf_error("'%s' in different file than '%s'",
545 tokenname, expected_tokenname);
546 fprintf(stderr, "%s:%d: location of the '%s'\n",
547 current_menu->file->name, current_menu->lineno,
555 static void zconfprint(const char *err, ...)
559 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
561 vfprintf(stderr, err, ap);
563 fprintf(stderr, "\n");
566 static void zconf_error(const char *err, ...)
571 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
573 vfprintf(stderr, err, ap);
575 fprintf(stderr, "\n");
578 static void yyerror(const char *err)
580 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
583 static void print_quoted_string(FILE *out, const char *str)
589 while ((p = strchr(str, '"'))) {
592 fprintf(out, "%.*s", len, str);
600 static void print_symbol(FILE *out, struct menu *menu)
602 struct symbol *sym = menu->sym;
603 struct property *prop;
605 if (sym_is_choice(sym))
606 fprintf(out, "\nchoice\n");
608 fprintf(out, "\nconfig %s\n", sym->name);
611 fputs(" bool\n", out);
614 fputs(" tristate\n", out);
617 fputs(" string\n", out);
620 fputs(" integer\n", out);
623 fputs(" hex\n", out);
626 fputs(" ???\n", out);
629 for (prop = sym->prop; prop; prop = prop->next) {
630 if (prop->menu != menu)
632 switch (prop->type) {
634 fputs(" prompt ", out);
635 print_quoted_string(out, prop->text);
636 if (!expr_is_yes(prop->visible.expr)) {
638 expr_fprint(prop->visible.expr, out);
643 fputs( " default ", out);
644 expr_fprint(prop->expr, out);
645 if (!expr_is_yes(prop->visible.expr)) {
647 expr_fprint(prop->visible.expr, out);
652 fputs(" #choice value\n", out);
655 fputs( " select ", out);
656 expr_fprint(prop->expr, out);
660 fputs( " imply ", out);
661 expr_fprint(prop->expr, out);
665 fputs( " range ", out);
666 expr_fprint(prop->expr, out);
670 fputs( " menu ", out);
671 print_quoted_string(out, prop->text);
675 fputs( " symbol ", out);
676 fprintf(out, "%s\n", prop->sym->name);
679 fprintf(out, " unknown prop %d!\n", prop->type);
684 int len = strlen(menu->help);
685 while (menu->help[--len] == '\n')
687 fprintf(out, " help\n%s\n", menu->help);
691 void zconfdump(FILE *out)
693 struct property *prop;
697 menu = rootmenu.list;
699 if ((sym = menu->sym))
700 print_symbol(out, menu);
701 else if ((prop = menu->prompt)) {
702 switch (prop->type) {
704 fputs("\ncomment ", out);
705 print_quoted_string(out, prop->text);
709 fputs("\nmenu ", out);
710 print_quoted_string(out, prop->text);
716 if (!expr_is_yes(prop->visible.expr)) {
717 fputs(" depends ", out);
718 expr_fprint(prop->visible.expr, out);
727 else while ((menu = menu->parent)) {
728 if (menu->prompt && menu->prompt->type == P_MENU)
729 fputs("\nendmenu\n", out);
738 #include "zconf.lex.c"
740 #include "confdata.c"
744 #include "preprocess.c"