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740 lines
15 KiB
740 lines
15 KiB
%{ |
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/* |
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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> |
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* Released under the terms of the GNU GPL v2.0. |
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*/ |
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#include <ctype.h> |
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#include <stdarg.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <stdbool.h> |
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#include "lkc.h" |
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#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt) |
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#define PRINTD 0x0001 |
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#define DEBUG_PARSE 0x0002 |
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int cdebug = PRINTD; |
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extern int zconflex(void); |
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static void zconfprint(const char *err, ...); |
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static void zconf_error(const char *err, ...); |
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static void zconferror(const char *err); |
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static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken); |
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struct symbol *symbol_hash[SYMBOL_HASHSIZE]; |
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static struct menu *current_menu, *current_entry; |
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%} |
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%expect 30 |
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%union |
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{ |
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char *string; |
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struct file *file; |
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struct symbol *symbol; |
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struct expr *expr; |
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struct menu *menu; |
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const struct kconf_id *id; |
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} |
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%token <id>T_MAINMENU |
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%token <id>T_MENU |
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%token <id>T_ENDMENU |
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%token <id>T_SOURCE |
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%token <id>T_CHOICE |
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%token <id>T_ENDCHOICE |
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%token <id>T_COMMENT |
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%token <id>T_CONFIG |
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%token <id>T_MENUCONFIG |
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%token <id>T_HELP |
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%token <string> T_HELPTEXT |
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%token <id>T_IF |
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%token <id>T_ENDIF |
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%token <id>T_DEPENDS |
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%token <id>T_OPTIONAL |
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%token <id>T_PROMPT |
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%token <id>T_TYPE |
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%token <id>T_DEFAULT |
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%token <id>T_SELECT |
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%token <id>T_RANGE |
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%token <id>T_VISIBLE |
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%token <id>T_OPTION |
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%token <id>T_ON |
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%token <string> T_WORD |
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%token <string> T_WORD_QUOTE |
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%token T_UNEQUAL |
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%token T_CLOSE_PAREN |
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%token T_OPEN_PAREN |
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%token T_EOL |
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%left T_OR |
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%left T_AND |
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%left T_EQUAL T_UNEQUAL |
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%nonassoc T_NOT |
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%type <string> prompt |
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%type <symbol> symbol |
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%type <expr> expr |
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%type <expr> if_expr |
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%type <id> end |
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%type <id> option_name |
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%type <menu> if_entry menu_entry choice_entry |
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%type <string> symbol_option_arg word_opt |
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%destructor { |
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fprintf(stderr, "%s:%d: missing end statement for this entry\n", |
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$$->file->name, $$->lineno); |
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if (current_menu == $$) |
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menu_end_menu(); |
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} if_entry menu_entry choice_entry |
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%{ |
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/* Include zconf.hash.c here so it can see the token constants. */ |
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#include "zconf.hash.c" |
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%} |
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%% |
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input: nl start | start; |
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start: mainmenu_stmt stmt_list | stmt_list; |
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stmt_list: |
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/* empty */ |
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| stmt_list common_stmt |
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| stmt_list choice_stmt |
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| stmt_list menu_stmt |
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| stmt_list end { zconf_error("unexpected end statement"); } |
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| stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); } |
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| stmt_list option_name error T_EOL |
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{ |
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zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name); |
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} |
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| stmt_list error T_EOL { zconf_error("invalid statement"); } |
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; |
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option_name: |
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T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT | T_VISIBLE |
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; |
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common_stmt: |
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T_EOL |
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| if_stmt |
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| comment_stmt |
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| config_stmt |
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| menuconfig_stmt |
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| source_stmt |
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; |
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option_error: |
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T_WORD error T_EOL { zconf_error("unknown option \"%s\"", $1); } |
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| error T_EOL { zconf_error("invalid option"); } |
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; |
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/* config/menuconfig entry */ |
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config_entry_start: T_CONFIG T_WORD T_EOL |
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{ |
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struct symbol *sym = sym_lookup($2, 0); |
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sym->flags |= SYMBOL_OPTIONAL; |
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menu_add_entry(sym); |
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printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2); |
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}; |
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config_stmt: config_entry_start config_option_list |
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{ |
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menu_end_entry(); |
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printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno()); |
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}; |
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menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL |
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{ |
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struct symbol *sym = sym_lookup($2, 0); |
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sym->flags |= SYMBOL_OPTIONAL; |
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menu_add_entry(sym); |
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printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2); |
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}; |
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menuconfig_stmt: menuconfig_entry_start config_option_list |
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{ |
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if (current_entry->prompt) |
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current_entry->prompt->type = P_MENU; |
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else |
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zconfprint("warning: menuconfig statement without prompt"); |
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menu_end_entry(); |
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printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno()); |
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}; |
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config_option_list: |
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/* empty */ |
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| config_option_list config_option |
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| config_option_list symbol_option |
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| config_option_list depends |
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| config_option_list help |
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| config_option_list option_error |
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| config_option_list T_EOL |
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; |
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config_option: T_TYPE prompt_stmt_opt T_EOL |
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{ |
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menu_set_type($1->stype); |
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printd(DEBUG_PARSE, "%s:%d:type(%u)\n", |
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zconf_curname(), zconf_lineno(), |
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$1->stype); |
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}; |
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config_option: T_PROMPT prompt if_expr T_EOL |
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{ |
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menu_add_prompt(P_PROMPT, $2, $3); |
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printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno()); |
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}; |
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config_option: T_DEFAULT expr if_expr T_EOL |
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{ |
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menu_add_expr(P_DEFAULT, $2, $3); |
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if ($1->stype != S_UNKNOWN) |
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menu_set_type($1->stype); |
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printd(DEBUG_PARSE, "%s:%d:default(%u)\n", |
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zconf_curname(), zconf_lineno(), |
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$1->stype); |
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}; |
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config_option: T_SELECT T_WORD if_expr T_EOL |
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{ |
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menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3); |
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printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno()); |
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}; |
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config_option: T_RANGE symbol symbol if_expr T_EOL |
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{ |
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menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4); |
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printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno()); |
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}; |
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symbol_option: T_OPTION symbol_option_list T_EOL |
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; |
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symbol_option_list: |
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/* empty */ |
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| symbol_option_list T_WORD symbol_option_arg |
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{ |
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const struct kconf_id *id = kconf_id_lookup($2, strlen($2)); |
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if (id && id->flags & TF_OPTION) |
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menu_add_option(id->token, $3); |
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else |
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zconfprint("warning: ignoring unknown option %s", $2); |
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free($2); |
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}; |
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symbol_option_arg: |
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/* empty */ { $$ = NULL; } |
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| T_EQUAL prompt { $$ = $2; } |
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; |
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/* choice entry */ |
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choice: T_CHOICE word_opt T_EOL |
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{ |
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struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE); |
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sym->flags |= SYMBOL_AUTO; |
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menu_add_entry(sym); |
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menu_add_expr(P_CHOICE, NULL, NULL); |
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printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno()); |
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}; |
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choice_entry: choice choice_option_list |
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{ |
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$$ = menu_add_menu(); |
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}; |
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choice_end: end |
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{ |
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if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) { |
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menu_end_menu(); |
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printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno()); |
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} |
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}; |
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choice_stmt: choice_entry choice_block choice_end |
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; |
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choice_option_list: |
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/* empty */ |
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| choice_option_list choice_option |
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| choice_option_list depends |
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| choice_option_list help |
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| choice_option_list T_EOL |
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| choice_option_list option_error |
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; |
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choice_option: T_PROMPT prompt if_expr T_EOL |
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{ |
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menu_add_prompt(P_PROMPT, $2, $3); |
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printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno()); |
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}; |
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choice_option: T_TYPE prompt_stmt_opt T_EOL |
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{ |
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if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) { |
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menu_set_type($1->stype); |
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printd(DEBUG_PARSE, "%s:%d:type(%u)\n", |
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zconf_curname(), zconf_lineno(), |
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$1->stype); |
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} else |
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YYERROR; |
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}; |
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choice_option: T_OPTIONAL T_EOL |
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{ |
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current_entry->sym->flags |= SYMBOL_OPTIONAL; |
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printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno()); |
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}; |
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choice_option: T_DEFAULT T_WORD if_expr T_EOL |
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{ |
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if ($1->stype == S_UNKNOWN) { |
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menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3); |
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printd(DEBUG_PARSE, "%s:%d:default\n", |
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zconf_curname(), zconf_lineno()); |
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} else |
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YYERROR; |
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}; |
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choice_block: |
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/* empty */ |
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| choice_block common_stmt |
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; |
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/* if entry */ |
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if_entry: T_IF expr nl |
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{ |
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printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno()); |
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menu_add_entry(NULL); |
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menu_add_dep($2); |
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$$ = menu_add_menu(); |
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}; |
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if_end: end |
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{ |
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if (zconf_endtoken($1, T_IF, T_ENDIF)) { |
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menu_end_menu(); |
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printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno()); |
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} |
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}; |
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if_stmt: if_entry if_block if_end |
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; |
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if_block: |
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/* empty */ |
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| if_block common_stmt |
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| if_block menu_stmt |
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| if_block choice_stmt |
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; |
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/* mainmenu entry */ |
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mainmenu_stmt: T_MAINMENU prompt nl |
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{ |
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menu_add_prompt(P_MENU, $2, NULL); |
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}; |
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/* menu entry */ |
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menu: T_MENU prompt T_EOL |
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{ |
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menu_add_entry(NULL); |
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menu_add_prompt(P_MENU, $2, NULL); |
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printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno()); |
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}; |
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menu_entry: menu visibility_list depends_list |
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{ |
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$$ = menu_add_menu(); |
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}; |
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menu_end: end |
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{ |
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if (zconf_endtoken($1, T_MENU, T_ENDMENU)) { |
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menu_end_menu(); |
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printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno()); |
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} |
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}; |
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menu_stmt: menu_entry menu_block menu_end |
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; |
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menu_block: |
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/* empty */ |
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| menu_block common_stmt |
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| menu_block menu_stmt |
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| menu_block choice_stmt |
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; |
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source_stmt: T_SOURCE prompt T_EOL |
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{ |
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printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2); |
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zconf_nextfile($2); |
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}; |
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/* comment entry */ |
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comment: T_COMMENT prompt T_EOL |
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{ |
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menu_add_entry(NULL); |
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menu_add_prompt(P_COMMENT, $2, NULL); |
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printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno()); |
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}; |
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comment_stmt: comment depends_list |
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{ |
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menu_end_entry(); |
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}; |
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/* help option */ |
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help_start: T_HELP T_EOL |
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{ |
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printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno()); |
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zconf_starthelp(); |
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}; |
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help: help_start T_HELPTEXT |
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{ |
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current_entry->help = $2; |
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}; |
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/* depends option */ |
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depends_list: |
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/* empty */ |
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| depends_list depends |
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| depends_list T_EOL |
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| depends_list option_error |
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; |
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depends: T_DEPENDS T_ON expr T_EOL |
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{ |
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menu_add_dep($3); |
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printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno()); |
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}; |
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/* visibility option */ |
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visibility_list: |
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/* empty */ |
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| visibility_list visible |
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| visibility_list T_EOL |
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; |
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visible: T_VISIBLE if_expr |
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{ |
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menu_add_visibility($2); |
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}; |
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/* prompt statement */ |
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prompt_stmt_opt: |
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/* empty */ |
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| prompt if_expr |
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{ |
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menu_add_prompt(P_PROMPT, $1, $2); |
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}; |
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prompt: T_WORD |
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| T_WORD_QUOTE |
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; |
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end: T_ENDMENU T_EOL { $$ = $1; } |
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| T_ENDCHOICE T_EOL { $$ = $1; } |
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| T_ENDIF T_EOL { $$ = $1; } |
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; |
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nl: |
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T_EOL |
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| nl T_EOL |
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; |
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if_expr: /* empty */ { $$ = NULL; } |
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| T_IF expr { $$ = $2; } |
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; |
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expr: symbol { $$ = expr_alloc_symbol($1); } |
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| symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); } |
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| symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); } |
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| T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; } |
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| T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); } |
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| expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); } |
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| expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); } |
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; |
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symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); } |
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| T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); } |
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; |
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word_opt: /* empty */ { $$ = NULL; } |
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| T_WORD |
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%% |
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void conf_parse(const char *name) |
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{ |
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struct symbol *sym; |
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int i; |
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zconf_initscan(name); |
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sym_init(); |
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_menu_init(); |
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modules_sym = sym_lookup(NULL, 0); |
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modules_sym->type = S_BOOLEAN; |
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modules_sym->flags |= SYMBOL_AUTO; |
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rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL); |
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if (getenv("ZCONF_DEBUG")) |
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zconfdebug = 1; |
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zconfparse(); |
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if (zconfnerrs) |
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exit(1); |
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if (!modules_sym->prop) { |
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struct property *prop; |
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prop = prop_alloc(P_DEFAULT, modules_sym); |
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prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0)); |
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} |
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rootmenu.prompt->text = _(rootmenu.prompt->text); |
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rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text); |
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menu_finalize(&rootmenu); |
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for_all_symbols(i, sym) { |
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if (sym_check_deps(sym)) |
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zconfnerrs++; |
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} |
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if (zconfnerrs) |
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exit(1); |
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sym_set_change_count(1); |
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} |
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static const char *zconf_tokenname(int token) |
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{ |
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switch (token) { |
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case T_MENU: return "menu"; |
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case T_ENDMENU: return "endmenu"; |
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case T_CHOICE: return "choice"; |
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case T_ENDCHOICE: return "endchoice"; |
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case T_IF: return "if"; |
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case T_ENDIF: return "endif"; |
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case T_DEPENDS: return "depends"; |
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case T_VISIBLE: return "visible"; |
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} |
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return "<token>"; |
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} |
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static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken) |
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{ |
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if (id->token != endtoken) { |
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zconf_error("unexpected '%s' within %s block", |
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kconf_id_strings + id->name, zconf_tokenname(starttoken)); |
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zconfnerrs++; |
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return false; |
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} |
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if (current_menu->file != current_file) { |
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zconf_error("'%s' in different file than '%s'", |
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kconf_id_strings + id->name, zconf_tokenname(starttoken)); |
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fprintf(stderr, "%s:%d: location of the '%s'\n", |
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current_menu->file->name, current_menu->lineno, |
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zconf_tokenname(starttoken)); |
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zconfnerrs++; |
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return false; |
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} |
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return true; |
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} |
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static void zconfprint(const char *err, ...) |
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{ |
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va_list ap; |
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fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno()); |
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va_start(ap, err); |
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vfprintf(stderr, err, ap); |
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va_end(ap); |
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fprintf(stderr, "\n"); |
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} |
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static void zconf_error(const char *err, ...) |
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{ |
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va_list ap; |
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zconfnerrs++; |
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fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno()); |
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va_start(ap, err); |
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vfprintf(stderr, err, ap); |
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va_end(ap); |
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fprintf(stderr, "\n"); |
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} |
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static void zconferror(const char *err) |
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{ |
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fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err); |
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} |
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static void print_quoted_string(FILE *out, const char *str) |
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{ |
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const char *p; |
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int len; |
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putc('"', out); |
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while ((p = strchr(str, '"'))) { |
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len = p - str; |
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if (len) |
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fprintf(out, "%.*s", len, str); |
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fputs("\\\"", out); |
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str = p + 1; |
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} |
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fputs(str, out); |
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putc('"', out); |
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} |
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static void print_symbol(FILE *out, struct menu *menu) |
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{ |
|
struct symbol *sym = menu->sym; |
|
struct property *prop; |
|
|
|
if (sym_is_choice(sym)) |
|
fprintf(out, "\nchoice\n"); |
|
else |
|
fprintf(out, "\nconfig %s\n", sym->name); |
|
switch (sym->type) { |
|
case S_BOOLEAN: |
|
fputs(" boolean\n", out); |
|
break; |
|
case S_TRISTATE: |
|
fputs(" tristate\n", out); |
|
break; |
|
case S_STRING: |
|
fputs(" string\n", out); |
|
break; |
|
case S_INT: |
|
fputs(" integer\n", out); |
|
break; |
|
case S_HEX: |
|
fputs(" hex\n", out); |
|
break; |
|
default: |
|
fputs(" ???\n", out); |
|
break; |
|
} |
|
for (prop = sym->prop; prop; prop = prop->next) { |
|
if (prop->menu != menu) |
|
continue; |
|
switch (prop->type) { |
|
case P_PROMPT: |
|
fputs(" prompt ", out); |
|
print_quoted_string(out, prop->text); |
|
if (!expr_is_yes(prop->visible.expr)) { |
|
fputs(" if ", out); |
|
expr_fprint(prop->visible.expr, out); |
|
} |
|
fputc('\n', out); |
|
break; |
|
case P_DEFAULT: |
|
fputs( " default ", out); |
|
expr_fprint(prop->expr, out); |
|
if (!expr_is_yes(prop->visible.expr)) { |
|
fputs(" if ", out); |
|
expr_fprint(prop->visible.expr, out); |
|
} |
|
fputc('\n', out); |
|
break; |
|
case P_CHOICE: |
|
fputs(" #choice value\n", out); |
|
break; |
|
case P_SELECT: |
|
fputs( " select ", out); |
|
expr_fprint(prop->expr, out); |
|
fputc('\n', out); |
|
break; |
|
case P_RANGE: |
|
fputs( " range ", out); |
|
expr_fprint(prop->expr, out); |
|
fputc('\n', out); |
|
break; |
|
case P_MENU: |
|
fputs( " menu ", out); |
|
print_quoted_string(out, prop->text); |
|
fputc('\n', out); |
|
break; |
|
default: |
|
fprintf(out, " unknown prop %d!\n", prop->type); |
|
break; |
|
} |
|
} |
|
if (menu->help) { |
|
int len = strlen(menu->help); |
|
while (menu->help[--len] == '\n') |
|
menu->help[len] = 0; |
|
fprintf(out, " help\n%s\n", menu->help); |
|
} |
|
} |
|
|
|
void zconfdump(FILE *out) |
|
{ |
|
struct property *prop; |
|
struct symbol *sym; |
|
struct menu *menu; |
|
|
|
menu = rootmenu.list; |
|
while (menu) { |
|
if ((sym = menu->sym)) |
|
print_symbol(out, menu); |
|
else if ((prop = menu->prompt)) { |
|
switch (prop->type) { |
|
case P_COMMENT: |
|
fputs("\ncomment ", out); |
|
print_quoted_string(out, prop->text); |
|
fputs("\n", out); |
|
break; |
|
case P_MENU: |
|
fputs("\nmenu ", out); |
|
print_quoted_string(out, prop->text); |
|
fputs("\n", out); |
|
break; |
|
default: |
|
; |
|
} |
|
if (!expr_is_yes(prop->visible.expr)) { |
|
fputs(" depends ", out); |
|
expr_fprint(prop->visible.expr, out); |
|
fputc('\n', out); |
|
} |
|
} |
|
|
|
if (menu->list) |
|
menu = menu->list; |
|
else if (menu->next) |
|
menu = menu->next; |
|
else while ((menu = menu->parent)) { |
|
if (menu->prompt && menu->prompt->type == P_MENU) |
|
fputs("\nendmenu\n", out); |
|
if (menu->next) { |
|
menu = menu->next; |
|
break; |
|
} |
|
} |
|
} |
|
} |
|
|
|
#include "zconf.lex.c" |
|
#include "util.c" |
|
#include "confdata.c" |
|
#include "expr.c" |
|
#include "symbol.c" |
|
#include "menu.c"
|
|
|