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1456edbb14
zconf.y includes zconf.hash.c from the initial code section. zconf.hash.c references the token constants from zconf.y. However, current bison defines the token constants after the initial code section, making zconf.hash.c fail to compile. Move the include of zconf.hash.c later in zconf.y, so bison puts it after the token constants. Signed-off-by: Josh Triplett <josh@joshtriplett.org>
710 lines
14 KiB
Plaintext
710 lines
14 KiB
Plaintext
%{
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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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#define LKC_DIRECT_LINK
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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(struct kconf_id *id, int starttoken, int endtoken);
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struct symbol *symbol_hash[257];
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static struct menu *current_menu, *current_entry;
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#define YYDEBUG 0
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#if YYDEBUG
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#define YYERROR_VERBOSE
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#endif
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%}
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%expect 26
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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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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_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: 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 T_MAINMENU prompt nl
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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
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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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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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$$ = menu_add_menu();
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};
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if_end: end
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{
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if (zconf_endtoken($1, T_IF, T_ENDIF)) {
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menu_end_menu();
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printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
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}
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};
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if_stmt: if_entry if_block if_end
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;
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if_block:
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/* empty */
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| if_block common_stmt
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| if_block menu_stmt
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| if_block choice_stmt
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;
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/* menu entry */
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menu: T_MENU prompt T_EOL
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{
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menu_add_entry(NULL);
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menu_add_prompt(P_MENU, $2, NULL);
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printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
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};
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menu_entry: menu depends_list
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{
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$$ = 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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/* 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, "Linux Kernel Configuration", NULL);
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#if YYDEBUG
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if (getenv("ZCONF_DEBUG"))
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zconfdebug = 1;
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#endif
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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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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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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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}
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return "<token>";
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}
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static bool zconf_endtoken(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) {
|
|
zconf_error("'%s' in different file than '%s'",
|
|
kconf_id_strings + id->name, zconf_tokenname(starttoken));
|
|
fprintf(stderr, "%s:%d: location of the '%s'\n",
|
|
current_menu->file->name, current_menu->lineno,
|
|
zconf_tokenname(starttoken));
|
|
zconfnerrs++;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void zconfprint(const char *err, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
|
|
va_start(ap, err);
|
|
vfprintf(stderr, err, ap);
|
|
va_end(ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
static void zconf_error(const char *err, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
zconfnerrs++;
|
|
fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
|
|
va_start(ap, err);
|
|
vfprintf(stderr, err, ap);
|
|
va_end(ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
static void zconferror(const char *err)
|
|
{
|
|
#if YYDEBUG
|
|
fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
|
|
#endif
|
|
}
|
|
|
|
void print_quoted_string(FILE *out, const char *str)
|
|
{
|
|
const char *p;
|
|
int len;
|
|
|
|
putc('"', out);
|
|
while ((p = strchr(str, '"'))) {
|
|
len = p - str;
|
|
if (len)
|
|
fprintf(out, "%.*s", len, str);
|
|
fputs("\\\"", out);
|
|
str = p + 1;
|
|
}
|
|
fputs(str, out);
|
|
putc('"', out);
|
|
}
|
|
|
|
void print_symbol(FILE *out, struct menu *menu)
|
|
{
|
|
struct symbol *sym = menu->sym;
|
|
struct property *prop;
|
|
|
|
if (sym_is_choice(sym))
|
|
fprintf(out, "choice\n");
|
|
else
|
|
fprintf(out, "config %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;
|
|
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);
|
|
}
|
|
fputc('\n', out);
|
|
}
|
|
|
|
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);
|
|
}
|
|
fputs("\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 "lex.zconf.c"
|
|
#include "util.c"
|
|
#include "confdata.c"
|
|
#include "expr.c"
|
|
#include "symbol.c"
|
|
#include "menu.c"
|