3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
4 * Released under the terms of the GNU GPL v2.0.
14 #define LKC_DIRECT_LINK
17 #include "zconf.hash.c"
19 #define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
22 #define DEBUG_PARSE 0x0002
26 extern int zconflex(void);
27 static void zconfprint(const char *err, ...);
28 static void zconferror(const char *err);
29 static bool zconf_endtoken(int token, int starttoken, int endtoken);
31 struct symbol *symbol_hash[257];
33 static struct menu *current_menu, *current_entry;
35 #define YYERROR_VERBOSE
43 struct symbol *symbol;
54 %token <id>T_ENDCHOICE
57 %token <id>T_MENUCONFIG
59 %token <string> T_HELPTEXT
71 %token <string> T_WORD
72 %token <string> T_WORD_QUOTE
81 %left T_EQUAL T_UNEQUAL
99 | T_MAINMENU prompt nl_or_eof
100 | T_ENDMENU { zconfprint("unexpected 'endmenu' statement"); }
101 | T_ENDIF { zconfprint("unexpected 'endif' statement"); }
102 | T_ENDCHOICE { zconfprint("unexpected 'endchoice' statement"); }
103 | error nl_or_eof { zconfprint("syntax error"); yyerrok; }
116 /* config/menuconfig entry */
118 config_entry_start: T_CONFIG T_WORD T_EOL
120 struct symbol *sym = sym_lookup($2, 0);
121 sym->flags |= SYMBOL_OPTIONAL;
123 printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
126 config_stmt: config_entry_start config_option_list
129 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
132 menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
134 struct symbol *sym = sym_lookup($2, 0);
135 sym->flags |= SYMBOL_OPTIONAL;
137 printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
140 menuconfig_stmt: menuconfig_entry_start config_option_list
142 if (current_entry->prompt)
143 current_entry->prompt->type = P_MENU;
145 zconfprint("warning: menuconfig statement without prompt");
147 printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
152 | config_option_list config_option
153 | config_option_list depends
154 | config_option_list help
155 | config_option_list T_EOL
158 config_option: T_TYPE prompt_stmt_opt T_EOL
160 menu_set_type($1->stype);
161 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
162 zconf_curname(), zconf_lineno(),
166 config_option: T_PROMPT prompt if_expr T_EOL
168 menu_add_prompt(P_PROMPT, $2, $3);
169 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
172 config_option: T_DEFAULT expr if_expr T_EOL
174 menu_add_expr(P_DEFAULT, $2, $3);
175 if ($1->stype != S_UNKNOWN)
176 menu_set_type($1->stype);
177 printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
178 zconf_curname(), zconf_lineno(),
182 config_option: T_SELECT T_WORD if_expr T_EOL
184 menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
185 printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
188 config_option: T_RANGE symbol symbol if_expr T_EOL
190 menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
191 printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
196 choice: T_CHOICE T_EOL
198 struct symbol *sym = sym_lookup(NULL, 0);
199 sym->flags |= SYMBOL_CHOICE;
201 menu_add_expr(P_CHOICE, NULL, NULL);
202 printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
205 choice_entry: choice choice_option_list
213 if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
215 printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
220 choice_entry choice_block choice_end
221 | choice_entry choice_block
223 printf("%s:%d: missing 'endchoice' for this 'choice' statement\n", current_menu->file->name, current_menu->lineno);
229 | choice_option_list choice_option
230 | choice_option_list depends
231 | choice_option_list help
232 | choice_option_list T_EOL
235 choice_option: T_PROMPT prompt if_expr T_EOL
237 menu_add_prompt(P_PROMPT, $2, $3);
238 printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
241 choice_option: T_TYPE prompt_stmt_opt T_EOL
243 if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
244 menu_set_type($1->stype);
245 printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
246 zconf_curname(), zconf_lineno(),
252 choice_option: T_OPTIONAL T_EOL
254 current_entry->sym->flags |= SYMBOL_OPTIONAL;
255 printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
258 choice_option: T_DEFAULT T_WORD if_expr T_EOL
260 if ($1->stype == S_UNKNOWN) {
261 menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
262 printd(DEBUG_PARSE, "%s:%d:default\n",
263 zconf_curname(), zconf_lineno());
270 | choice_block common_block
277 printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
278 menu_add_entry(NULL);
286 if (zconf_endtoken($1, T_IF, T_ENDIF)) {
288 printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
296 printf("%s:%d: missing 'endif' for this 'if' statement\n", current_menu->file->name, current_menu->lineno);
302 | if_block common_block
304 | if_block choice_stmt
309 menu: T_MENU prompt T_EOL
311 menu_add_entry(NULL);
312 menu_add_prompt(P_MENU, $2, NULL);
313 printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
316 menu_entry: menu depends_list
324 if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
326 printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
331 menu_entry menu_block menu_end
332 | menu_entry menu_block
334 printf("%s:%d: missing 'endmenu' for this 'menu' statement\n", current_menu->file->name, current_menu->lineno);
340 | menu_block common_block
341 | menu_block menu_stmt
342 | menu_block choice_stmt
343 | menu_block error T_EOL { zconfprint("invalid menu option"); yyerrok; }
346 source: T_SOURCE prompt T_EOL
349 printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
359 comment: T_COMMENT prompt T_EOL
361 menu_add_entry(NULL);
362 menu_add_prompt(P_COMMENT, $2, NULL);
363 printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
366 comment_stmt: comment depends_list
373 help_start: T_HELP T_EOL
375 printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
379 help: help_start T_HELPTEXT
381 current_entry->sym->help = $2;
386 depends_list: /* empty */
387 | depends_list depends
391 depends: T_DEPENDS T_ON expr T_EOL
394 printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
396 | T_DEPENDS expr T_EOL
399 printd(DEBUG_PARSE, "%s:%d:depends\n", zconf_curname(), zconf_lineno());
401 | T_REQUIRES expr T_EOL
404 printd(DEBUG_PARSE, "%s:%d:requires\n", zconf_curname(), zconf_lineno());
407 /* prompt statement */
413 menu_add_prompt(P_PROMPT, $1, $2);
420 end: T_ENDMENU nl_or_eof { $$ = T_ENDMENU; }
421 | T_ENDCHOICE nl_or_eof { $$ = T_ENDCHOICE; }
422 | T_ENDIF nl_or_eof { $$ = T_ENDIF; }
428 if_expr: /* empty */ { $$ = NULL; }
429 | T_IF expr { $$ = $2; }
432 expr: symbol { $$ = expr_alloc_symbol($1); }
433 | symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
434 | symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
435 | T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }
436 | T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }
437 | expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }
438 | expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }
441 symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }
442 | T_WORD_QUOTE { $$ = sym_lookup($1, 1); free($1); }
447 void conf_parse(const char *name)
452 zconf_initscan(name);
456 modules_sym = sym_lookup("MODULES", 0);
457 rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
463 menu_finalize(&rootmenu);
464 for_all_symbols(i, sym) {
468 sym_change_count = 1;
471 const char *zconf_tokenname(int token)
474 case T_MENU: return "menu";
475 case T_ENDMENU: return "endmenu";
476 case T_CHOICE: return "choice";
477 case T_ENDCHOICE: return "endchoice";
478 case T_IF: return "if";
479 case T_ENDIF: return "endif";
484 static bool zconf_endtoken(int token, int starttoken, int endtoken)
486 if (token != endtoken) {
487 zconfprint("unexpected '%s' within %s block", zconf_tokenname(token), zconf_tokenname(starttoken));
491 if (current_menu->file != current_file) {
492 zconfprint("'%s' in different file than '%s'", zconf_tokenname(token), zconf_tokenname(starttoken));
493 zconfprint("location of the '%s'", zconf_tokenname(starttoken));
500 static void zconfprint(const char *err, ...)
504 fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno() + 1);
506 vfprintf(stderr, err, ap);
508 fprintf(stderr, "\n");
511 static void zconferror(const char *err)
513 fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
516 void print_quoted_string(FILE *out, const char *str)
522 while ((p = strchr(str, '"'))) {
525 fprintf(out, "%.*s", len, str);
533 void print_symbol(FILE *out, struct menu *menu)
535 struct symbol *sym = menu->sym;
536 struct property *prop;
538 if (sym_is_choice(sym))
539 fprintf(out, "choice\n");
541 fprintf(out, "config %s\n", sym->name);
544 fputs(" boolean\n", out);
547 fputs(" tristate\n", out);
550 fputs(" string\n", out);
553 fputs(" integer\n", out);
556 fputs(" hex\n", out);
559 fputs(" ???\n", out);
562 for (prop = sym->prop; prop; prop = prop->next) {
563 if (prop->menu != menu)
565 switch (prop->type) {
567 fputs(" prompt ", out);
568 print_quoted_string(out, prop->text);
569 if (!expr_is_yes(prop->visible.expr)) {
571 expr_fprint(prop->visible.expr, out);
576 fputs( " default ", out);
577 expr_fprint(prop->expr, out);
578 if (!expr_is_yes(prop->visible.expr)) {
580 expr_fprint(prop->visible.expr, out);
585 fputs(" #choice value\n", out);
588 fprintf(out, " unknown prop %d!\n", prop->type);
593 int len = strlen(sym->help);
594 while (sym->help[--len] == '\n')
596 fprintf(out, " help\n%s\n", sym->help);
601 void zconfdump(FILE *out)
603 struct property *prop;
607 menu = rootmenu.list;
609 if ((sym = menu->sym))
610 print_symbol(out, menu);
611 else if ((prop = menu->prompt)) {
612 switch (prop->type) {
614 fputs("\ncomment ", out);
615 print_quoted_string(out, prop->text);
619 fputs("\nmenu ", out);
620 print_quoted_string(out, prop->text);
626 if (!expr_is_yes(prop->visible.expr)) {
627 fputs(" depends ", out);
628 expr_fprint(prop->visible.expr, out);
638 else while ((menu = menu->parent)) {
639 if (menu->prompt && menu->prompt->type == P_MENU)
640 fputs("\nendmenu\n", out);
649 #include "lex.zconf.c"
651 #include "confdata.c"