1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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 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 T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
129 | stmt_list error T_EOL { zconf_error("invalid statement"); }
141 /* config/menuconfig entry */
143 config_entry_start: T_CONFIG nonconst_symbol T_EOL
145 $2->flags |= SYMBOL_OPTIONAL;
147 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
150 config_stmt: config_entry_start config_option_list
152 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
155 menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL
157 $2->flags |= SYMBOL_OPTIONAL;
159 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
162 menuconfig_stmt: menuconfig_entry_start config_option_list
164 if (current_entry->prompt)
165 current_entry->prompt->type = P_MENU;
167 zconfprint("warning: menuconfig statement without prompt");
168 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
173 | config_option_list config_option
174 | config_option_list depends
175 | config_option_list help
178 config_option: type prompt_stmt_opt T_EOL
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: default expr if_expr T_EOL
194 menu_add_expr(P_DEFAULT, $2, $3);
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 config_option: T_OPTION T_MODULES T_EOL
222 menu_add_option_modules();
225 config_option: T_OPTION T_DEFCONFIG_LIST T_EOL
227 menu_add_option_defconfig_list();
230 config_option: T_OPTION T_ALLNOCONFIG_Y T_EOL
232 menu_add_option_allnoconfig_y();
237 choice: T_CHOICE word_opt T_EOL
239 struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE);
240 sym->flags |= SYMBOL_NO_WRITE;
242 menu_add_expr(P_CHOICE, NULL, NULL);
244 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
247 choice_entry: choice choice_option_list
249 $$ = menu_add_menu();
254 if (zconf_endtoken($1, "choice")) {
256 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
260 choice_stmt: choice_entry choice_block choice_end
265 | choice_option_list choice_option
266 | choice_option_list depends
267 | choice_option_list help
270 choice_option: T_PROMPT prompt if_expr T_EOL
272 menu_add_prompt(P_PROMPT, $2, $3);
273 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
276 choice_option: logic_type prompt_stmt_opt T_EOL
279 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
280 zconf_curname(), zconf_lineno(), $1);
283 choice_option: T_OPTIONAL T_EOL
285 current_entry->sym->flags |= SYMBOL_OPTIONAL;
286 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
289 choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL
291 menu_add_symbol(P_DEFAULT, $2, $3);
292 printd(DEBUG_PARSE, "%s:%d:default\n",
293 zconf_curname(), zconf_lineno());
298 | T_INT { $$ = S_INT; }
299 | T_HEX { $$ = S_HEX; }
300 | T_STRING { $$ = S_STRING; }
303 T_BOOL { $$ = S_BOOLEAN; }
304 | T_TRISTATE { $$ = S_TRISTATE; }
307 T_DEFAULT { $$ = S_UNKNOWN; }
308 | T_DEF_BOOL { $$ = S_BOOLEAN; }
309 | T_DEF_TRISTATE { $$ = S_TRISTATE; }
313 | choice_block common_stmt
318 if_entry: T_IF expr T_EOL
320 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
321 menu_add_entry(NULL);
323 $$ = menu_add_menu();
328 if (zconf_endtoken($1, "if")) {
330 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
334 if_stmt: if_entry stmt_list if_end
339 menu: T_MENU prompt T_EOL
341 menu_add_entry(NULL);
342 menu_add_prompt(P_MENU, $2, NULL);
343 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
346 menu_entry: menu menu_option_list
348 $$ = menu_add_menu();
353 if (zconf_endtoken($1, "menu")) {
355 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
359 menu_stmt: menu_entry stmt_list menu_end
364 | menu_option_list visible
365 | menu_option_list depends
368 source_stmt: T_SOURCE prompt T_EOL
370 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
377 comment: T_COMMENT prompt T_EOL
379 menu_add_entry(NULL);
380 menu_add_prompt(P_COMMENT, $2, NULL);
381 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
384 comment_stmt: comment comment_option_list
389 | comment_option_list depends
394 help_start: T_HELP T_EOL
396 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
400 help: help_start T_HELPTEXT
402 if (current_entry->help) {
403 free(current_entry->help);
404 zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
405 current_entry->sym->name ?: "<choice>");
408 /* Is the help text empty or all whitespace? */
409 if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
410 zconfprint("warning: '%s' defined with blank help text",
411 current_entry->sym->name ?: "<choice>");
413 current_entry->help = $2;
418 depends: T_DEPENDS T_ON expr T_EOL
421 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
424 /* visibility option */
425 visible: T_VISIBLE if_expr T_EOL
427 menu_add_visibility($2);
430 /* prompt statement */
436 menu_add_prompt(P_PROMPT, $1, $2);
443 end: T_ENDMENU T_EOL { $$ = "menu"; }
444 | T_ENDCHOICE T_EOL { $$ = "choice"; }
445 | T_ENDIF T_EOL { $$ = "if"; }
448 if_expr: /* empty */ { $$ = NULL; }
449 | T_IF expr { $$ = $2; }
452 expr: symbol { $$ = expr_alloc_symbol($1); }
453 | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
454 | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
455 | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
456 | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
457 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
458 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
459 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
460 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
461 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
462 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
465 /* For symbol definitions, selects, etc., where quotes are not accepted */
466 nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
468 symbol: nonconst_symbol
469 | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
472 word_opt: /* empty */ { $$ = NULL; }
475 /* assignment statement */
477 assignment_stmt: T_WORD assign_op assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
480 T_EQUAL { $$ = VAR_RECURSIVE; }
481 | T_COLON_EQUAL { $$ = VAR_SIMPLE; }
482 | T_PLUS_EQUAL { $$ = VAR_APPEND; }
486 /* empty */ { $$ = xstrdup(""); };
492 void conf_parse(const char *name)
497 zconf_initscan(name);
500 rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL);
502 if (getenv("ZCONF_DEBUG"))
506 /* Variables are expanded in the parse phase. We can free them here. */
512 modules_sym = sym_find( "n" );
514 if (!menu_has_prompt(&rootmenu)) {
515 current_entry = &rootmenu;
516 menu_add_prompt(P_MENU, "Main menu", NULL);
519 menu_finalize(&rootmenu);
520 for_all_symbols(i, sym) {
521 if (sym_check_deps(sym))
526 sym_set_change_count(1);
529 static bool zconf_endtoken(const char *tokenname,
530 const char *expected_tokenname)
532 if (strcmp(tokenname, expected_tokenname)) {
533 zconf_error("unexpected '%s' within %s block",
534 tokenname, expected_tokenname);
538 if (current_menu->file != current_file) {
539 zconf_error("'%s' in different file than '%s'",
540 tokenname, expected_tokenname);
541 fprintf(stderr, "%s:%d: location of the '%s'\n",
542 current_menu->file->name, current_menu->lineno,
550 static void zconfprint(const char *err, ...)
554 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
556 vfprintf(stderr, err, ap);
558 fprintf(stderr, "\n");
561 static void zconf_error(const char *err, ...)
566 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
568 vfprintf(stderr, err, ap);
570 fprintf(stderr, "\n");
573 static void yyerror(const char *err)
575 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
578 static void print_quoted_string(FILE *out, const char *str)
584 while ((p = strchr(str, '"'))) {
587 fprintf(out, "%.*s", len, str);
595 static void print_symbol(FILE *out, struct menu *menu)
597 struct symbol *sym = menu->sym;
598 struct property *prop;
600 if (sym_is_choice(sym))
601 fprintf(out, "\nchoice\n");
603 fprintf(out, "\nconfig %s\n", sym->name);
606 fputs(" bool\n", out);
609 fputs(" tristate\n", out);
612 fputs(" string\n", out);
615 fputs(" integer\n", out);
618 fputs(" hex\n", out);
621 fputs(" ???\n", out);
624 for (prop = sym->prop; prop; prop = prop->next) {
625 if (prop->menu != menu)
627 switch (prop->type) {
629 fputs(" prompt ", out);
630 print_quoted_string(out, prop->text);
631 if (!expr_is_yes(prop->visible.expr)) {
633 expr_fprint(prop->visible.expr, out);
638 fputs( " default ", out);
639 expr_fprint(prop->expr, out);
640 if (!expr_is_yes(prop->visible.expr)) {
642 expr_fprint(prop->visible.expr, out);
647 fputs(" #choice value\n", out);
650 fputs( " select ", out);
651 expr_fprint(prop->expr, out);
655 fputs( " imply ", out);
656 expr_fprint(prop->expr, out);
660 fputs( " range ", out);
661 expr_fprint(prop->expr, out);
665 fputs( " menu ", out);
666 print_quoted_string(out, prop->text);
670 fputs( " symbol ", out);
671 fprintf(out, "%s\n", prop->sym->name);
674 fprintf(out, " unknown prop %d!\n", prop->type);
679 int len = strlen(menu->help);
680 while (menu->help[--len] == '\n')
682 fprintf(out, " help\n%s\n", menu->help);
686 void zconfdump(FILE *out)
688 struct property *prop;
692 menu = rootmenu.list;
694 if ((sym = menu->sym))
695 print_symbol(out, menu);
696 else if ((prop = menu->prompt)) {
697 switch (prop->type) {
699 fputs("\ncomment ", out);
700 print_quoted_string(out, prop->text);
704 fputs("\nmenu ", out);
705 print_quoted_string(out, prop->text);
711 if (!expr_is_yes(prop->visible.expr)) {
712 fputs(" depends ", out);
713 expr_fprint(prop->visible.expr, out);
722 else while ((menu = menu->parent)) {
723 if (menu->prompt && menu->prompt->type == P_MENU)
724 fputs("\nendmenu\n", out);
733 #include "zconf.lex.c"
735 #include "confdata.c"
739 #include "preprocess.c"