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[/] [test_project/] [trunk/] [linux_sd_driver/] [scripts/] [kconfig/] [zconf.y] - Blame information for rev 82

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%{
/*
 * Copyright (C) 2002 Roman Zippel 
 * Released under the terms of the GNU GPL v2.0.
 */
 
#include 
#include 
#include 
#include 
#include 
#include 
 
#define LKC_DIRECT_LINK
#include "lkc.h"
 
#include "zconf.hash.c"
 
#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)
 
#define PRINTD          0x0001
#define DEBUG_PARSE     0x0002
 
int cdebug = PRINTD;
 
extern int zconflex(void);
static void zconfprint(const char *err, ...);
static void zconf_error(const char *err, ...);
static void zconferror(const char *err);
static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken);
 
struct symbol *symbol_hash[257];
 
static struct menu *current_menu, *current_entry;
 
#define YYDEBUG 0
#if YYDEBUG
#define YYERROR_VERBOSE
#endif
%}
%expect 26
 
%union
{
        char *string;
        struct file *file;
        struct symbol *symbol;
        struct expr *expr;
        struct menu *menu;
        struct kconf_id *id;
}
 
%token T_MAINMENU
%token T_MENU
%token T_ENDMENU
%token T_SOURCE
%token T_CHOICE
%token T_ENDCHOICE
%token T_COMMENT
%token T_CONFIG
%token T_MENUCONFIG
%token T_HELP
%token  T_HELPTEXT
%token T_IF
%token T_ENDIF
%token T_DEPENDS
%token T_OPTIONAL
%token T_PROMPT
%token T_TYPE
%token T_DEFAULT
%token T_SELECT
%token T_RANGE
%token T_OPTION
%token T_ON
%token  T_WORD
%token  T_WORD_QUOTE
%token T_UNEQUAL
%token T_CLOSE_PAREN
%token T_OPEN_PAREN
%token T_EOL
 
%left T_OR
%left T_AND
%left T_EQUAL T_UNEQUAL
%nonassoc T_NOT
 
%type  prompt
%type  symbol
%type  expr
%type  if_expr
%type  end
%type  option_name
%type  if_entry menu_entry choice_entry
%type  symbol_option_arg
 
%destructor {
        fprintf(stderr, "%s:%d: missing end statement for this entry\n",
                $$->file->name, $$->lineno);
        if (current_menu == $$)
                menu_end_menu();
} if_entry menu_entry choice_entry
 
%%
input: stmt_list;
 
stmt_list:
          /* empty */
        | stmt_list common_stmt
        | stmt_list choice_stmt
        | stmt_list menu_stmt
        | stmt_list T_MAINMENU prompt nl
        | stmt_list end                 { zconf_error("unexpected end statement"); }
        | stmt_list T_WORD error T_EOL  { zconf_error("unknown statement \"%s\"", $2); }
        | stmt_list option_name error T_EOL
{
        zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);
}
        | stmt_list error T_EOL         { zconf_error("invalid statement"); }
;
 
option_name:
        T_DEPENDS | T_PROMPT | T_TYPE | T_SELECT | T_OPTIONAL | T_RANGE | T_DEFAULT
;
 
common_stmt:
          T_EOL
        | if_stmt
        | comment_stmt
        | config_stmt
        | menuconfig_stmt
        | source_stmt
;
 
option_error:
          T_WORD error T_EOL            { zconf_error("unknown option \"%s\"", $1); }
        | error T_EOL                   { zconf_error("invalid option"); }
;
 
 
/* config/menuconfig entry */
 
config_entry_start: T_CONFIG T_WORD T_EOL
{
        struct symbol *sym = sym_lookup($2, 0);
        sym->flags |= SYMBOL_OPTIONAL;
        menu_add_entry(sym);
        printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);
};
 
config_stmt: config_entry_start config_option_list
{
        menu_end_entry();
        printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
};
 
menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL
{
        struct symbol *sym = sym_lookup($2, 0);
        sym->flags |= SYMBOL_OPTIONAL;
        menu_add_entry(sym);
        printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);
};
 
menuconfig_stmt: menuconfig_entry_start config_option_list
{
        if (current_entry->prompt)
                current_entry->prompt->type = P_MENU;
        else
                zconfprint("warning: menuconfig statement without prompt");
        menu_end_entry();
        printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());
};
 
config_option_list:
          /* empty */
        | config_option_list config_option
        | config_option_list symbol_option
        | config_option_list depends
        | config_option_list help
        | config_option_list option_error
        | config_option_list T_EOL
;
 
config_option: T_TYPE prompt_stmt_opt T_EOL
{
        menu_set_type($1->stype);
        printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
                zconf_curname(), zconf_lineno(),
                $1->stype);
};
 
config_option: T_PROMPT prompt if_expr T_EOL
{
        menu_add_prompt(P_PROMPT, $2, $3);
        printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
};
 
config_option: T_DEFAULT expr if_expr T_EOL
{
        menu_add_expr(P_DEFAULT, $2, $3);
        if ($1->stype != S_UNKNOWN)
                menu_set_type($1->stype);
        printd(DEBUG_PARSE, "%s:%d:default(%u)\n",
                zconf_curname(), zconf_lineno(),
                $1->stype);
};
 
config_option: T_SELECT T_WORD if_expr T_EOL
{
        menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);
        printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());
};
 
config_option: T_RANGE symbol symbol if_expr T_EOL
{
        menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);
        printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());
};
 
symbol_option: T_OPTION symbol_option_list T_EOL
;
 
symbol_option_list:
          /* empty */
        | symbol_option_list T_WORD symbol_option_arg
{
        struct kconf_id *id = kconf_id_lookup($2, strlen($2));
        if (id && id->flags & TF_OPTION)
                menu_add_option(id->token, $3);
        else
                zconfprint("warning: ignoring unknown option %s", $2);
        free($2);
};
 
symbol_option_arg:
          /* empty */           { $$ = NULL; }
        | T_EQUAL prompt        { $$ = $2; }
;
 
/* choice entry */
 
choice: T_CHOICE T_EOL
{
        struct symbol *sym = sym_lookup(NULL, 0);
        sym->flags |= SYMBOL_CHOICE;
        menu_add_entry(sym);
        menu_add_expr(P_CHOICE, NULL, NULL);
        printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
};
 
choice_entry: choice choice_option_list
{
        $$ = menu_add_menu();
};
 
choice_end: end
{
        if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {
                menu_end_menu();
                printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());
        }
};
 
choice_stmt: choice_entry choice_block choice_end
;
 
choice_option_list:
          /* empty */
        | choice_option_list choice_option
        | choice_option_list depends
        | choice_option_list help
        | choice_option_list T_EOL
        | choice_option_list option_error
;
 
choice_option: T_PROMPT prompt if_expr T_EOL
{
        menu_add_prompt(P_PROMPT, $2, $3);
        printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());
};
 
choice_option: T_TYPE prompt_stmt_opt T_EOL
{
        if ($1->stype == S_BOOLEAN || $1->stype == S_TRISTATE) {
                menu_set_type($1->stype);
                printd(DEBUG_PARSE, "%s:%d:type(%u)\n",
                        zconf_curname(), zconf_lineno(),
                        $1->stype);
        } else
                YYERROR;
};
 
choice_option: T_OPTIONAL T_EOL
{
        current_entry->sym->flags |= SYMBOL_OPTIONAL;
        printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());
};
 
choice_option: T_DEFAULT T_WORD if_expr T_EOL
{
        if ($1->stype == S_UNKNOWN) {
                menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
                printd(DEBUG_PARSE, "%s:%d:default\n",
                        zconf_curname(), zconf_lineno());
        } else
                YYERROR;
};
 
choice_block:
          /* empty */
        | choice_block common_stmt
;
 
/* if entry */
 
if_entry: T_IF expr nl
{
        printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
        menu_add_entry(NULL);
        menu_add_dep($2);
        $$ = menu_add_menu();
};
 
if_end: end
{
        if (zconf_endtoken($1, T_IF, T_ENDIF)) {
                menu_end_menu();
                printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());
        }
};
 
if_stmt: if_entry if_block if_end
;
 
if_block:
          /* empty */
        | if_block common_stmt
        | if_block menu_stmt
        | if_block choice_stmt
;
 
/* menu entry */
 
menu: T_MENU prompt T_EOL
{
        menu_add_entry(NULL);
        menu_add_prompt(P_MENU, $2, NULL);
        printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
};
 
menu_entry: menu depends_list
{
        $$ = menu_add_menu();
};
 
menu_end: end
{
        if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {
                menu_end_menu();
                printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());
        }
};
 
menu_stmt: menu_entry menu_block menu_end
;
 
menu_block:
          /* empty */
        | menu_block common_stmt
        | menu_block menu_stmt
        | menu_block choice_stmt
;
 
source_stmt: T_SOURCE prompt T_EOL
{
        printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
        zconf_nextfile($2);
};
 
/* comment entry */
 
comment: T_COMMENT prompt T_EOL
{
        menu_add_entry(NULL);
        menu_add_prompt(P_COMMENT, $2, NULL);
        printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());
};
 
comment_stmt: comment depends_list
{
        menu_end_entry();
};
 
/* help option */
 
help_start: T_HELP T_EOL
{
        printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());
        zconf_starthelp();
};
 
help: help_start T_HELPTEXT
{
        current_entry->help = $2;
};
 
/* depends option */
 
depends_list:
          /* empty */
        | depends_list depends
        | depends_list T_EOL
        | depends_list option_error
;
 
depends: T_DEPENDS T_ON expr T_EOL
{
        menu_add_dep($3);
        printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
};
 
/* prompt statement */
 
prompt_stmt_opt:
          /* empty */
        | prompt if_expr
{
        menu_add_prompt(P_PROMPT, $1, $2);
};
 
prompt:   T_WORD
        | T_WORD_QUOTE
;
 
end:      T_ENDMENU T_EOL       { $$ = $1; }
        | T_ENDCHOICE T_EOL     { $$ = $1; }
        | T_ENDIF T_EOL         { $$ = $1; }
;
 
nl:
          T_EOL
        | nl T_EOL
;
 
if_expr:  /* empty */                   { $$ = NULL; }
        | T_IF expr                     { $$ = $2; }
;
 
expr:     symbol                                { $$ = expr_alloc_symbol($1); }
        | symbol T_EQUAL symbol                 { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }
        | symbol T_UNEQUAL symbol               { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }
        | T_OPEN_PAREN expr T_CLOSE_PAREN       { $$ = $2; }
        | T_NOT expr                            { $$ = expr_alloc_one(E_NOT, $2); }
        | expr T_OR expr                        { $$ = expr_alloc_two(E_OR, $1, $3); }
        | expr T_AND expr                       { $$ = expr_alloc_two(E_AND, $1, $3); }
;
 
symbol:   T_WORD        { $$ = sym_lookup($1, 0); free($1); }
        | T_WORD_QUOTE  { $$ = sym_lookup($1, 1); free($1); }
;
 
%%
 
void conf_parse(const char *name)
{
        struct symbol *sym;
        int i;
 
        zconf_initscan(name);
 
        sym_init();
        menu_init();
        modules_sym = sym_lookup(NULL, 0);
        modules_sym->type = S_BOOLEAN;
        modules_sym->flags |= SYMBOL_AUTO;
        rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
 
#if YYDEBUG
        if (getenv("ZCONF_DEBUG"))
                zconfdebug = 1;
#endif
        zconfparse();
        if (zconfnerrs)
                exit(1);
        if (!modules_sym->prop) {
                struct property *prop;
 
                prop = prop_alloc(P_DEFAULT, modules_sym);
                prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0));
        }
        menu_finalize(&rootmenu);
        for_all_symbols(i, sym) {
                if (sym_check_deps(sym))
                        zconfnerrs++;
        }
        if (zconfnerrs)
                exit(1);
        sym_set_change_count(1);
}
 
const char *zconf_tokenname(int token)
{
        switch (token) {
        case T_MENU:            return "menu";
        case T_ENDMENU:         return "endmenu";
        case T_CHOICE:          return "choice";
        case T_ENDCHOICE:       return "endchoice";
        case T_IF:              return "if";
        case T_ENDIF:           return "endif";
        case T_DEPENDS:         return "depends";
        }
        return "";
}
 
static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken)
{
        if (id->token != endtoken) {
                zconf_error("unexpected '%s' within %s block",
                        kconf_id_strings + id->name, zconf_tokenname(starttoken));
                zconfnerrs++;
                return false;
        }
        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"

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[/] [test_project/] [trunk/] [linux_sd_driver/] [scripts/] [kconfig/] [zconf.y] - Blame information for rev 82

Line No.	Rev	Author	Line
1	62	marcus.erl	`%{`
2			`/*`
3			`* Copyright (C) 2002 Roman Zippel`
4			`* Released under the terms of the GNU GPL v2.0.`
5			`*/`
6
7			`#include`
8			`#include`
9			`#include`
10			`#include`
11			`#include`
12			`#include`
13
14			`#define LKC_DIRECT_LINK`
15			`#include "lkc.h"`
16
17			`#include "zconf.hash.c"`
18
19			`#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt)`
20
21			`#define PRINTD 0x0001`
22			`#define DEBUG_PARSE 0x0002`
23
24			`int cdebug = PRINTD;`
25
26			`extern int zconflex(void);`
27			`static void zconfprint(const char *err, ...);`
28			`static void zconf_error(const char *err, ...);`
29			`static void zconferror(const char *err);`
30			`static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken);`
31
32			`struct symbol *symbol_hash[257];`
33
34			`static struct menu current_menu, current_entry;`
35
36			`#define YYDEBUG 0`
37			`#if YYDEBUG`
38			`#define YYERROR_VERBOSE`
39			`#endif`
40			`%}`
41			`%expect 26`
42
43			`%union`
44			`{`
45			`char *string;`
46			`struct file *file;`
47			`struct symbol *symbol;`
48			`struct expr *expr;`
49			`struct menu *menu;`
50			`struct kconf_id *id;`
51			`}`
52
53			`%token T_MAINMENU`
54			`%token T_MENU`
55			`%token T_ENDMENU`
56			`%token T_SOURCE`
57			`%token T_CHOICE`
58			`%token T_ENDCHOICE`
59			`%token T_COMMENT`
60			`%token T_CONFIG`
61			`%token T_MENUCONFIG`
62			`%token T_HELP`
63			`%token T_HELPTEXT`
64			`%token T_IF`
65			`%token T_ENDIF`
66			`%token T_DEPENDS`
67			`%token T_OPTIONAL`
68			`%token T_PROMPT`
69			`%token T_TYPE`
70			`%token T_DEFAULT`
71			`%token T_SELECT`
72			`%token T_RANGE`
73			`%token T_OPTION`
74			`%token T_ON`
75			`%token T_WORD`
76			`%token T_WORD_QUOTE`
77			`%token T_UNEQUAL`
78			`%token T_CLOSE_PAREN`
79			`%token T_OPEN_PAREN`
80			`%token T_EOL`
81
82			`%left T_OR`
83			`%left T_AND`
84			`%left T_EQUAL T_UNEQUAL`
85			`%nonassoc T_NOT`
86
87			`%type prompt`
88			`%type symbol`
89			`%type expr`
90			`%type if_expr`
91			`%type end`
92			`%type option_name`
93			`%type` `if_entry menu_entry choice_entry`
94			`%type symbol_option_arg`
95
96			`%destructor {`
97			`fprintf(stderr, "%s:%d: missing end statement for this entry\n",`
98			`$$->file->name, $$->lineno);`
99			`if (current_menu == $$)`
100			`menu_end_menu();`
101			`} if_entry menu_entry choice_entry`
102
103			`%%`
104			`input: stmt_list;`
105
106			`stmt_list:`
107			`/* empty */`
108			`\| stmt_list common_stmt`
109			`\| stmt_list choice_stmt`
110			`\| stmt_list menu_stmt`
111			`\| stmt_list T_MAINMENU prompt nl`
112			`\| stmt_list end { zconf_error("unexpected end statement"); }`
113			`\| stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }`
114			`\| stmt_list option_name error T_EOL`
115			`{`
116			`zconf_error("unexpected option \"%s\"", kconf_id_strings + $2->name);`
117			`}`
118			`\| stmt_list error T_EOL { zconf_error("invalid statement"); }`
119			`;`
120
121			`option_name:`
122			`T_DEPENDS \| T_PROMPT \| T_TYPE \| T_SELECT \| T_OPTIONAL \| T_RANGE \| T_DEFAULT`
123			`;`
124
125			`common_stmt:`
126			`T_EOL`
127			`\| if_stmt`
128			`\| comment_stmt`
129			`\| config_stmt`
130			`\| menuconfig_stmt`
131			`\| source_stmt`
132			`;`
133
134			`option_error:`
135			`T_WORD error T_EOL { zconf_error("unknown option \"%s\"", $1); }`
136			`\| error T_EOL { zconf_error("invalid option"); }`
137			`;`
138
139
140			`/* config/menuconfig entry */`
141
142			`config_entry_start: T_CONFIG T_WORD T_EOL`
143			`{`
144			`struct symbol *sym = sym_lookup($2, 0);`
145			`sym->flags \|= SYMBOL_OPTIONAL;`
146			`menu_add_entry(sym);`
147			`printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2);`
148			`};`
149
150			`config_stmt: config_entry_start config_option_list`
151			`{`
152			`menu_end_entry();`
153			`printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());`
154			`};`
155
156			`menuconfig_entry_start: T_MENUCONFIG T_WORD T_EOL`
157			`{`
158			`struct symbol *sym = sym_lookup($2, 0);`
159			`sym->flags \|= SYMBOL_OPTIONAL;`
160			`menu_add_entry(sym);`
161			`printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2);`
162			`};`
163
164			`menuconfig_stmt: menuconfig_entry_start config_option_list`
165			`{`
166			`if (current_entry->prompt)`
167			`current_entry->prompt->type = P_MENU;`
168			`else`
169			`zconfprint("warning: menuconfig statement without prompt");`
170			`menu_end_entry();`
171			`printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno());`
172			`};`
173
174			`config_option_list:`
175			`/* empty */`
176			`\| config_option_list config_option`
177			`\| config_option_list symbol_option`
178			`\| config_option_list depends`
179			`\| config_option_list help`
180			`\| config_option_list option_error`
181			`\| config_option_list T_EOL`
182			`;`
183
184			`config_option: T_TYPE prompt_stmt_opt T_EOL`
185			`{`
186			`menu_set_type($1->stype);`
187			`printd(DEBUG_PARSE, "%s:%d:type(%u)\n",`
188			`zconf_curname(), zconf_lineno(),`
189			`$1->stype);`
190			`};`
191
192			`config_option: T_PROMPT prompt if_expr T_EOL`
193			`{`
194			`menu_add_prompt(P_PROMPT, $2, $3);`
195			`printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());`
196			`};`
197
198			`config_option: T_DEFAULT expr if_expr T_EOL`
199			`{`
200			`menu_add_expr(P_DEFAULT, $2, $3);`
201			`if ($1->stype != S_UNKNOWN)`
202			`menu_set_type($1->stype);`
203			`printd(DEBUG_PARSE, "%s:%d:default(%u)\n",`
204			`zconf_curname(), zconf_lineno(),`
205			`$1->stype);`
206			`};`
207
208			`config_option: T_SELECT T_WORD if_expr T_EOL`
209			`{`
210			`menu_add_symbol(P_SELECT, sym_lookup($2, 0), $3);`
211			`printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno());`
212			`};`
213
214			`config_option: T_RANGE symbol symbol if_expr T_EOL`
215			`{`
216			`menu_add_expr(P_RANGE, expr_alloc_comp(E_RANGE,$2, $3), $4);`
217			`printd(DEBUG_PARSE, "%s:%d:range\n", zconf_curname(), zconf_lineno());`
218			`};`
219
220			`symbol_option: T_OPTION symbol_option_list T_EOL`
221			`;`
222
223			`symbol_option_list:`
224			`/* empty */`
225			`\| symbol_option_list T_WORD symbol_option_arg`
226			`{`
227			`struct kconf_id *id = kconf_id_lookup($2, strlen($2));`
228			`if (id && id->flags & TF_OPTION)`
229			`menu_add_option(id->token, $3);`
230			`else`
231			`zconfprint("warning: ignoring unknown option %s", $2);`
232			`free($2);`
233			`};`
234
235			`symbol_option_arg:`
236			`/* empty */ { $$ = NULL; }`
237			`\| T_EQUAL prompt { $$ = $2; }`
238			`;`
239
240			`/* choice entry */`
241
242			`choice: T_CHOICE T_EOL`
243			`{`
244			`struct symbol *sym = sym_lookup(NULL, 0);`
245			`sym->flags \|= SYMBOL_CHOICE;`
246			`menu_add_entry(sym);`
247			`menu_add_expr(P_CHOICE, NULL, NULL);`
248			`printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());`
249			`};`
250
251			`choice_entry: choice choice_option_list`
252			`{`
253			`$$ = menu_add_menu();`
254			`};`
255
256			`choice_end: end`
257			`{`
258			`if (zconf_endtoken($1, T_CHOICE, T_ENDCHOICE)) {`
259			`menu_end_menu();`
260			`printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno());`
261			`}`
262			`};`
263
264			`choice_stmt: choice_entry choice_block choice_end`
265			`;`
266
267			`choice_option_list:`
268			`/* empty */`
269			`\| choice_option_list choice_option`
270			`\| choice_option_list depends`
271			`\| choice_option_list help`
272			`\| choice_option_list T_EOL`
273			`\| choice_option_list option_error`
274			`;`
275
276			`choice_option: T_PROMPT prompt if_expr T_EOL`
277			`{`
278			`menu_add_prompt(P_PROMPT, $2, $3);`
279			`printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno());`
280			`};`
281
282			`choice_option: T_TYPE prompt_stmt_opt T_EOL`
283			`{`
284			`if ($1->stype == S_BOOLEAN \|\| $1->stype == S_TRISTATE) {`
285			`menu_set_type($1->stype);`
286			`printd(DEBUG_PARSE, "%s:%d:type(%u)\n",`
287			`zconf_curname(), zconf_lineno(),`
288			`$1->stype);`
289			`} else`
290			`YYERROR;`
291			`};`
292
293			`choice_option: T_OPTIONAL T_EOL`
294			`{`
295			`current_entry->sym->flags \|= SYMBOL_OPTIONAL;`
296			`printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno());`
297			`};`
298
299			`choice_option: T_DEFAULT T_WORD if_expr T_EOL`
300			`{`
301			`if ($1->stype == S_UNKNOWN) {`
302			`menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);`
303			`printd(DEBUG_PARSE, "%s:%d:default\n",`
304			`zconf_curname(), zconf_lineno());`
305			`} else`
306			`YYERROR;`
307			`};`
308
309			`choice_block:`
310			`/* empty */`
311			`\| choice_block common_stmt`
312			`;`
313
314			`/* if entry */`
315
316			`if_entry: T_IF expr nl`
317			`{`
318			`printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());`
319			`menu_add_entry(NULL);`
320			`menu_add_dep($2);`
321			`$$ = menu_add_menu();`
322			`};`
323
324			`if_end: end`
325			`{`
326			`if (zconf_endtoken($1, T_IF, T_ENDIF)) {`
327			`menu_end_menu();`
328			`printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno());`
329			`}`
330			`};`
331
332			`if_stmt: if_entry if_block if_end`
333			`;`
334
335			`if_block:`
336			`/* empty */`
337			`\| if_block common_stmt`
338			`\| if_block menu_stmt`
339			`\| if_block choice_stmt`
340			`;`
341
342			`/* menu entry */`
343
344			`menu: T_MENU prompt T_EOL`
345			`{`
346			`menu_add_entry(NULL);`
347			`menu_add_prompt(P_MENU, $2, NULL);`
348			`printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());`
349			`};`
350
351			`menu_entry: menu depends_list`
352			`{`
353			`$$ = menu_add_menu();`
354			`};`
355
356			`menu_end: end`
357			`{`
358			`if (zconf_endtoken($1, T_MENU, T_ENDMENU)) {`
359			`menu_end_menu();`
360			`printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno());`
361			`}`
362			`};`
363
364			`menu_stmt: menu_entry menu_block menu_end`
365			`;`
366
367			`menu_block:`
368			`/* empty */`
369			`\| menu_block common_stmt`
370			`\| menu_block menu_stmt`
371			`\| menu_block choice_stmt`
372			`;`
373
374			`source_stmt: T_SOURCE prompt T_EOL`
375			`{`
376			`printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);`
377			`zconf_nextfile($2);`
378			`};`
379
380			`/* comment entry */`
381
382			`comment: T_COMMENT prompt T_EOL`
383			`{`
384			`menu_add_entry(NULL);`
385			`menu_add_prompt(P_COMMENT, $2, NULL);`
386			`printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno());`
387			`};`
388
389			`comment_stmt: comment depends_list`
390			`{`
391			`menu_end_entry();`
392			`};`
393
394			`/* help option */`
395
396			`help_start: T_HELP T_EOL`
397			`{`
398			`printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno());`
399			`zconf_starthelp();`
400			`};`
401
402			`help: help_start T_HELPTEXT`
403			`{`
404			`current_entry->help = $2;`
405			`};`
406
407			`/* depends option */`
408
409			`depends_list:`
410			`/* empty */`
411			`\| depends_list depends`
412			`\| depends_list T_EOL`
413			`\| depends_list option_error`
414			`;`
415
416			`depends: T_DEPENDS T_ON expr T_EOL`
417			`{`
418			`menu_add_dep($3);`
419			`printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());`
420			`};`
421
422			`/* prompt statement */`
423
424			`prompt_stmt_opt:`
425			`/* empty */`
426			`\| prompt if_expr`
427			`{`
428			`menu_add_prompt(P_PROMPT, $1, $2);`
429			`};`
430
431			`prompt: T_WORD`
432			`\| T_WORD_QUOTE`
433			`;`
434
435			`end: T_ENDMENU T_EOL { $$ = $1; }`
436			`\| T_ENDCHOICE T_EOL { $$ = $1; }`
437			`\| T_ENDIF T_EOL { $$ = $1; }`
438			`;`
439
440			`nl:`
441			`T_EOL`
442			`\| nl T_EOL`
443			`;`
444
445			`if_expr: /* empty */ { $$ = NULL; }`
446			`\| T_IF expr { $$ = $2; }`
447			`;`
448
449			`expr: symbol { $$ = expr_alloc_symbol($1); }`
450			`\| symbol T_EQUAL symbol { $$ = expr_alloc_comp(E_EQUAL, $1, $3); }`
451			`\| symbol T_UNEQUAL symbol { $$ = expr_alloc_comp(E_UNEQUAL, $1, $3); }`
452			`\| T_OPEN_PAREN expr T_CLOSE_PAREN { $$ = $2; }`
453			`\| T_NOT expr { $$ = expr_alloc_one(E_NOT, $2); }`
454			`\| expr T_OR expr { $$ = expr_alloc_two(E_OR, $1, $3); }`
455			`\| expr T_AND expr { $$ = expr_alloc_two(E_AND, $1, $3); }`
456			`;`
457
458			`symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }`
459			`\| T_WORD_QUOTE { $$ = sym_lookup($1, 1); free($1); }`
460			`;`
461
462			`%%`
463
464			`void conf_parse(const char *name)`
465			`{`
466			`struct symbol *sym;`
467			`int i;`
468
469			`zconf_initscan(name);`
470
471			`sym_init();`
472			`menu_init();`
473			`modules_sym = sym_lookup(NULL, 0);`
474			`modules_sym->type = S_BOOLEAN;`
475			`modules_sym->flags \|= SYMBOL_AUTO;`
476			`rootmenu.prompt = menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);`
477
478			`#if YYDEBUG`
479			`if (getenv("ZCONF_DEBUG"))`
480			`zconfdebug = 1;`
481			`#endif`
482			`zconfparse();`
483			`if (zconfnerrs)`
484			`exit(1);`
485			`if (!modules_sym->prop) {`
486			`struct property *prop;`
487
488			`prop = prop_alloc(P_DEFAULT, modules_sym);`
489			`prop->expr = expr_alloc_symbol(sym_lookup("MODULES", 0));`
490			`}`
491			`menu_finalize(&rootmenu);`
492			`for_all_symbols(i, sym) {`
493			`if (sym_check_deps(sym))`
494			`zconfnerrs++;`
495			`}`
496			`if (zconfnerrs)`
497			`exit(1);`
498			`sym_set_change_count(1);`
499			`}`
500
501			`const char *zconf_tokenname(int token)`
502			`{`
503			`switch (token) {`
504			`case T_MENU: return "menu";`
505			`case T_ENDMENU: return "endmenu";`
506			`case T_CHOICE: return "choice";`
507			`case T_ENDCHOICE: return "endchoice";`
508			`case T_IF: return "if";`
509			`case T_ENDIF: return "endif";`
510			`case T_DEPENDS: return "depends";`
511			`}`
512			`return "";`
513			`}`
514
515			`static bool zconf_endtoken(struct kconf_id *id, int starttoken, int endtoken)`
516			`{`
517			`if (id->token != endtoken) {`
518			`zconf_error("unexpected '%s' within %s block",`
519			`kconf_id_strings + id->name, zconf_tokenname(starttoken));`
520			`zconfnerrs++;`
521			`return false;`
522			`}`
523			`if (current_menu->file != current_file) {`
524			`zconf_error("'%s' in different file than '%s'",`
525			`kconf_id_strings + id->name, zconf_tokenname(starttoken));`
526			`fprintf(stderr, "%s:%d: location of the '%s'\n",`
527			`current_menu->file->name, current_menu->lineno,`
528			`zconf_tokenname(starttoken));`
529			`zconfnerrs++;`
530			`return false;`
531			`}`
532			`return true;`
533			`}`
534
535			`static void zconfprint(const char *err, ...)`
536			`{`
537			`va_list ap;`
538
539			`fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());`
540			`va_start(ap, err);`
541			`vfprintf(stderr, err, ap);`
542			`va_end(ap);`
543			`fprintf(stderr, "\n");`
544			`}`
545
546			`static void zconf_error(const char *err, ...)`
547			`{`
548			`va_list ap;`
549
550			`zconfnerrs++;`
551			`fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());`
552			`va_start(ap, err);`
553			`vfprintf(stderr, err, ap);`
554			`va_end(ap);`
555			`fprintf(stderr, "\n");`
556			`}`
557
558			`static void zconferror(const char *err)`
559			`{`
560			`#if YYDEBUG`
561			`fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);`
562			`#endif`
563			`}`
564
565			`void print_quoted_string(FILE out, const char str)`
566			`{`
567			`const char *p;`
568			`int len;`
569
570			`putc('"', out);`
571			`while ((p = strchr(str, '"'))) {`
572			`len = p - str;`
573			`if (len)`
574			`fprintf(out, "%.*s", len, str);`
575			`fputs("\\\"", out);`
576			`str = p + 1;`
577			`}`
578			`fputs(str, out);`
579			`putc('"', out);`
580			`}`
581
582			`void print_symbol(FILE out, struct menu menu)`
583			`{`
584			`struct symbol *sym = menu->sym;`
585			`struct property *prop;`
586
587			`if (sym_is_choice(sym))`
588			`fprintf(out, "choice\n");`
589			`else`
590			`fprintf(out, "config %s\n", sym->name);`
591			`switch (sym->type) {`
592			`case S_BOOLEAN:`
593			`fputs(" boolean\n", out);`
594			`break;`
595			`case S_TRISTATE:`
596			`fputs(" tristate\n", out);`
597			`break;`
598			`case S_STRING:`
599			`fputs(" string\n", out);`
600			`break;`
601			`case S_INT:`
602			`fputs(" integer\n", out);`
603			`break;`
604			`case S_HEX:`
605			`fputs(" hex\n", out);`
606			`break;`
607			`default:`
608			`fputs(" ???\n", out);`
609			`break;`
610			`}`
611			`for (prop = sym->prop; prop; prop = prop->next) {`
612			`if (prop->menu != menu)`
613			`continue;`
614			`switch (prop->type) {`
615			`case P_PROMPT:`
616			`fputs(" prompt ", out);`
617			`print_quoted_string(out, prop->text);`
618			`if (!expr_is_yes(prop->visible.expr)) {`
619			`fputs(" if ", out);`
620			`expr_fprint(prop->visible.expr, out);`
621			`}`
622			`fputc('\n', out);`
623			`break;`
624			`case P_DEFAULT:`
625			`fputs( " default ", out);`
626			`expr_fprint(prop->expr, out);`
627			`if (!expr_is_yes(prop->visible.expr)) {`
628			`fputs(" if ", out);`
629			`expr_fprint(prop->visible.expr, out);`
630			`}`
631			`fputc('\n', out);`
632			`break;`
633			`case P_CHOICE:`
634			`fputs(" #choice value\n", out);`
635			`break;`
636			`default:`
637			`fprintf(out, " unknown prop %d!\n", prop->type);`
638			`break;`
639			`}`
640			`}`
641			`if (menu->help) {`
642			`int len = strlen(menu->help);`
643			`while (menu->help[--len] == '\n')`
644			`menu->help[len] = 0;`
645			`fprintf(out, " help\n%s\n", menu->help);`
646			`}`
647			`fputc('\n', out);`
648			`}`
649
650			`void zconfdump(FILE *out)`
651			`{`
652			`struct property *prop;`
653			`struct symbol *sym;`
654			`struct menu *menu;`
655
656			`menu = rootmenu.list;`
657			`while (menu) {`
658			`if ((sym = menu->sym))`
659			`print_symbol(out, menu);`
660			`else if ((prop = menu->prompt)) {`
661			`switch (prop->type) {`
662			`case P_COMMENT:`
663			`fputs("\ncomment ", out);`
664			`print_quoted_string(out, prop->text);`
665			`fputs("\n", out);`
666			`break;`
667			`case P_MENU:`
668			`fputs("\nmenu ", out);`
669			`print_quoted_string(out, prop->text);`
670			`fputs("\n", out);`
671			`break;`
672			`default:`
673			`;`
674			`}`
675			`if (!expr_is_yes(prop->visible.expr)) {`
676			`fputs(" depends ", out);`
677			`expr_fprint(prop->visible.expr, out);`
678			`fputc('\n', out);`
679			`}`
680			`fputs("\n", out);`
681			`}`
682
683			`if (menu->list)`
684			`menu = menu->list;`
685			`else if (menu->next)`
686			`menu = menu->next;`
687			`else while ((menu = menu->parent)) {`
688			`if (menu->prompt && menu->prompt->type == P_MENU)`
689			`fputs("\nendmenu\n", out);`
690			`if (menu->next) {`
691			`menu = menu->next;`
692			`break;`
693			`}`
694			`}`
695			`}`
696			`}`
697
698			`#include "lex.zconf.c"`
699			`#include "util.c"`
700			`#include "confdata.c"`
701			`#include "expr.c"`
702			`#include "symbol.c"`
703			`#include "menu.c"`