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![Masahiro Yamada](/assets/img/avatar_default.png)
util.c exists both in scripts/kconfig/ and scripts/kconfig/lxdialog.
Prior to commit 54b8ae66ae
("kbuild: change *FLAGS_<basetarget>.o
to take the path relative to $(obj)"), Kbuild could not pass different
flags to source files with the same basename. Now that this issue
was solved, you can split util.c out of parser.y and compile them
independently of each other.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
730 lines
15 KiB
Text
730 lines
15 KiB
Text
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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*/
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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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static void yyerror(const char *err);
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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 bool zconf_endtoken(const char *tokenname,
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const char *expected_tokenname);
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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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%union
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{
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char *string;
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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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enum symbol_type type;
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enum variable_flavor flavor;
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}
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%token <string> T_HELPTEXT
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%token <string> T_WORD
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%token <string> T_WORD_QUOTE
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%token T_ALLNOCONFIG_Y
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%token T_BOOL
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%token T_CHOICE
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%token T_CLOSE_PAREN
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%token T_COLON_EQUAL
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%token T_COMMENT
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%token T_CONFIG
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%token T_DEFAULT
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%token T_DEFCONFIG_LIST
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%token T_DEF_BOOL
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%token T_DEF_TRISTATE
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%token T_DEPENDS
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%token T_ENDCHOICE
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%token T_ENDIF
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%token T_ENDMENU
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%token T_HELP
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%token T_HEX
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%token T_IF
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%token T_IMPLY
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%token T_INT
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%token T_MAINMENU
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%token T_MENU
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%token T_MENUCONFIG
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%token T_MODULES
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%token T_ON
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%token T_OPEN_PAREN
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%token T_OPTION
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%token T_OPTIONAL
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%token T_PLUS_EQUAL
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%token T_PROMPT
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%token T_RANGE
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%token T_SELECT
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%token T_SOURCE
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%token T_STRING
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%token T_TRISTATE
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%token T_VISIBLE
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%token T_EOL
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%token <string> T_ASSIGN_VAL
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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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%left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL
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%nonassoc T_NOT
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%type <string> prompt
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%type <symbol> nonconst_symbol
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%type <symbol> symbol
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%type <type> type logic_type default
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%type <expr> expr
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%type <expr> if_expr
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%type <string> end
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%type <menu> if_entry menu_entry choice_entry
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%type <string> word_opt assign_val
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%type <flavor> assign_op
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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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input: mainmenu_stmt stmt_list | stmt_list;
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/* mainmenu entry */
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mainmenu_stmt: T_MAINMENU prompt T_EOL
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{
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menu_add_prompt(P_MENU, $2, NULL);
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};
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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_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
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| stmt_list error T_EOL { zconf_error("invalid statement"); }
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;
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common_stmt:
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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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| assignment_stmt
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;
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/* config/menuconfig entry */
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config_entry_start: T_CONFIG nonconst_symbol T_EOL
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{
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$2->flags |= SYMBOL_OPTIONAL;
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menu_add_entry($2);
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printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name);
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};
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config_stmt: config_entry_start config_option_list
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{
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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 nonconst_symbol T_EOL
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{
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$2->flags |= SYMBOL_OPTIONAL;
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menu_add_entry($2);
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printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name);
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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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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 depends
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| config_option_list help
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;
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config_option: type prompt_stmt_opt T_EOL
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{
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menu_set_type($1);
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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);
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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: 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 != S_UNKNOWN)
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menu_set_type($1);
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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);
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};
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config_option: T_SELECT nonconst_symbol if_expr T_EOL
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{
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menu_add_symbol(P_SELECT, $2, $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_IMPLY nonconst_symbol if_expr T_EOL
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{
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menu_add_symbol(P_IMPLY, $2, $3);
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printd(DEBUG_PARSE, "%s:%d:imply\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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config_option: T_OPTION T_MODULES T_EOL
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{
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menu_add_option_modules();
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};
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config_option: T_OPTION T_DEFCONFIG_LIST T_EOL
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{
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menu_add_option_defconfig_list();
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};
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config_option: T_OPTION T_ALLNOCONFIG_Y T_EOL
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{
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menu_add_option_allnoconfig_y();
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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_NO_WRITE;
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menu_add_entry(sym);
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menu_add_expr(P_CHOICE, NULL, NULL);
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free($2);
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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, "choice")) {
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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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;
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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: logic_type prompt_stmt_opt T_EOL
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{
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menu_set_type($1);
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printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
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zconf_curname(), zconf_lineno(), $1);
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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 nonconst_symbol if_expr T_EOL
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{
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menu_add_symbol(P_DEFAULT, $2, $3);
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printd(DEBUG_PARSE, "%s:%d:default\n",
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zconf_curname(), zconf_lineno());
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};
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type:
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logic_type
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| T_INT { $$ = S_INT; }
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| T_HEX { $$ = S_HEX; }
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| T_STRING { $$ = S_STRING; }
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logic_type:
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T_BOOL { $$ = S_BOOLEAN; }
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| T_TRISTATE { $$ = S_TRISTATE; }
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default:
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T_DEFAULT { $$ = S_UNKNOWN; }
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| T_DEF_BOOL { $$ = S_BOOLEAN; }
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| T_DEF_TRISTATE { $$ = S_TRISTATE; }
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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 T_EOL
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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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$$ = menu_add_menu();
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};
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if_end: end
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{
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if (zconf_endtoken($1, "if")) {
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menu_end_menu();
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printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
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}
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};
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if_stmt: if_entry stmt_list if_end
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;
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/* menu entry */
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menu: T_MENU prompt T_EOL
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{
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menu_add_entry(NULL);
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menu_add_prompt(P_MENU, $2, NULL);
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printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
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};
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menu_entry: menu menu_option_list
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{
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$$ = 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, "menu")) {
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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 stmt_list menu_end
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;
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menu_option_list:
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/* empty */
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| menu_option_list visible
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| menu_option_list depends
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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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free($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 comment_option_list
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;
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comment_option_list:
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/* empty */
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| comment_option_list depends
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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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if (current_entry->help) {
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free(current_entry->help);
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zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used",
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current_entry->sym->name ?: "<choice>");
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}
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/* Is the help text empty or all whitespace? */
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if ($2[strspn($2, " \f\n\r\t\v")] == '\0')
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zconfprint("warning: '%s' defined with blank help text",
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current_entry->sym->name ?: "<choice>");
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current_entry->help = $2;
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};
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/* depends option */
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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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visible: T_VISIBLE if_expr T_EOL
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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 { $$ = "menu"; }
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| T_ENDCHOICE T_EOL { $$ = "choice"; }
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| T_ENDIF T_EOL { $$ = "if"; }
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;
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if_expr: /* empty */ { $$ = 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_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); }
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| symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); }
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| symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); }
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| symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); }
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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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/* For symbol definitions, selects, etc., where quotes are not accepted */
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nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); };
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symbol: nonconst_symbol
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| T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); }
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;
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word_opt: /* empty */ { $$ = NULL; }
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| T_WORD
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/* assignment statement */
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assignment_stmt: T_WORD assign_op assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); }
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assign_op:
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T_EQUAL { $$ = VAR_RECURSIVE; }
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| T_COLON_EQUAL { $$ = VAR_SIMPLE; }
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| T_PLUS_EQUAL { $$ = VAR_APPEND; }
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;
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assign_val:
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/* empty */ { $$ = xstrdup(""); };
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| T_ASSIGN_VAL
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;
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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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_menu_init();
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if (getenv("ZCONF_DEBUG"))
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yydebug = 1;
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yyparse();
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/* Variables are expanded in the parse phase. We can free them here. */
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variable_all_del();
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if (yynerrs)
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exit(1);
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if (!modules_sym)
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modules_sym = sym_find( "n" );
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if (!menu_has_prompt(&rootmenu)) {
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current_entry = &rootmenu;
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menu_add_prompt(P_MENU, "Main menu", NULL);
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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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yynerrs++;
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}
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if (yynerrs)
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exit(1);
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sym_set_change_count(1);
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}
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static bool zconf_endtoken(const char *tokenname,
|
|
const char *expected_tokenname)
|
|
{
|
|
if (strcmp(tokenname, expected_tokenname)) {
|
|
zconf_error("unexpected '%s' within %s block",
|
|
tokenname, expected_tokenname);
|
|
yynerrs++;
|
|
return false;
|
|
}
|
|
if (current_menu->file != current_file) {
|
|
zconf_error("'%s' in different file than '%s'",
|
|
tokenname, expected_tokenname);
|
|
fprintf(stderr, "%s:%d: location of the '%s'\n",
|
|
current_menu->file->name, current_menu->lineno,
|
|
expected_tokenname);
|
|
yynerrs++;
|
|
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;
|
|
|
|
yynerrs++;
|
|
fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
|
|
va_start(ap, err);
|
|
vfprintf(stderr, err, ap);
|
|
va_end(ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
static void yyerror(const char *err)
|
|
{
|
|
fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
|
|
}
|
|
|
|
static 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);
|
|
}
|
|
|
|
static void print_symbol(FILE *out, struct menu *menu)
|
|
{
|
|
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(" bool\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_IMPLY:
|
|
fputs( " imply ", 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;
|
|
case P_SYMBOL:
|
|
fputs( " symbol ", out);
|
|
fprintf(out, "%s\n", prop->sym->name);
|
|
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 "menu.c"
|