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[/] [core_arm/] [trunk/] [build/] [config/] [zconf.y] - Blame information for rev 2

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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 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 zconferror(const char *err);
static bool zconf_endtoken(int token, int starttoken, int endtoken);
 
struct symbol *symbol_hash[257];
 
#define YYERROR_VERBOSE
%}
%expect 40
 
%union
{
        int token;
        char *string;
        struct symbol *symbol;
        struct expr *expr;
        struct menu *menu;
}
 
%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_REQUIRES
%token T_OPTIONAL
%token T_PROMPT
%token T_DEFAULT
%token T_TRISTATE
%token T_DEF_TRISTATE
%token T_BOOLEAN
%token T_DEF_BOOLEAN
%token T_STRING
%token T_INT
%token T_HEX
%token  T_WORD
%token  T_WORD_QUOTE
%token T_UNEQUAL
%token T_EOF
%token T_EOL
%token T_CLOSE_PAREN
%token T_OPEN_PAREN
%token T_ON
%token T_SELECT
%token T_RANGE
 
%left T_OR
%left T_AND
%left T_EQUAL T_UNEQUAL
%nonassoc T_NOT
 
%type  prompt
%type  source
%type  symbol
%type  expr
%type  if_expr
%type  end
 
%{
#define LKC_DIRECT_LINK
#include "lkc.h"
%}
%%
input:    /* empty */
        | input block
;
 
block:    common_block
        | choice_stmt
        | menu_stmt
        | T_MAINMENU prompt nl_or_eof
        | T_ENDMENU             { zconfprint("unexpected 'endmenu' statement"); }
        | T_ENDIF               { zconfprint("unexpected 'endif' statement"); }
        | T_ENDCHOICE           { zconfprint("unexpected 'endchoice' statement"); }
        | error nl_or_eof       { zconfprint("syntax error"); yyerrok; }
;
 
common_block:
          if_stmt
        | comment_stmt
        | config_stmt
        | menuconfig_stmt
        | source_stmt
        | nl_or_eof
;
 
 
/* 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 depends
        | config_option_list help
        | config_option_list T_EOL
;
 
config_option: T_TRISTATE prompt_stmt_opt T_EOL
{
        menu_set_type(S_TRISTATE);
        printd(DEBUG_PARSE, "%s:%d:tristate\n", zconf_curname(), zconf_lineno());
};
 
config_option: T_DEF_TRISTATE expr if_expr T_EOL
{
        menu_add_expr(P_DEFAULT, $2, $3);
        menu_set_type(S_TRISTATE);
        printd(DEBUG_PARSE, "%s:%d:def_boolean\n", zconf_curname(), zconf_lineno());
};
 
config_option: T_BOOLEAN prompt_stmt_opt T_EOL
{
        menu_set_type(S_BOOLEAN);
        printd(DEBUG_PARSE, "%s:%d:boolean\n", zconf_curname(), zconf_lineno());
};
 
config_option: T_DEF_BOOLEAN expr if_expr T_EOL
{
        menu_add_expr(P_DEFAULT, $2, $3);
        menu_set_type(S_BOOLEAN);
        printd(DEBUG_PARSE, "%s:%d:def_boolean\n", zconf_curname(), zconf_lineno());
};
 
config_option: T_INT prompt_stmt_opt T_EOL
{
        menu_set_type(S_INT);
        printd(DEBUG_PARSE, "%s:%d:int\n", zconf_curname(), zconf_lineno());
};
 
config_option: T_HEX prompt_stmt_opt T_EOL
{
        menu_set_type(S_HEX);
        printd(DEBUG_PARSE, "%s:%d:hex\n", zconf_curname(), zconf_lineno());
};
 
config_option: T_STRING prompt_stmt_opt T_EOL
{
        menu_set_type(S_STRING);
        printd(DEBUG_PARSE, "%s:%d:string\n", zconf_curname(), zconf_lineno());
};
 
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);
        printd(DEBUG_PARSE, "%s:%d:default\n", zconf_curname(), zconf_lineno());
};
 
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());
};
 
/* 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_end_entry();
        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_entry choice_block
{
        printf("%s:%d: missing 'endchoice' for this 'choice' statement\n", current_menu->file->name, current_menu->lineno);
        zconfnerrs++;
};
 
choice_option_list:
          /* empty */
        | choice_option_list choice_option
        | choice_option_list depends
        | choice_option_list help
        | choice_option_list T_EOL
;
 
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_TRISTATE prompt_stmt_opt T_EOL
{
        menu_set_type(S_TRISTATE);
        printd(DEBUG_PARSE, "%s:%d:tristate\n", zconf_curname(), zconf_lineno());
};
 
choice_option: T_BOOLEAN prompt_stmt_opt T_EOL
{
        menu_set_type(S_BOOLEAN);
        printd(DEBUG_PARSE, "%s:%d:boolean\n", zconf_curname(), zconf_lineno());
};
 
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
{
        menu_add_symbol(P_DEFAULT, sym_lookup($2, 0), $3);
        printd(DEBUG_PARSE, "%s:%d:default\n", zconf_curname(), zconf_lineno());
};
 
choice_block:
          /* empty */
        | choice_block common_block
;
 
/* if entry */
 
if: T_IF expr T_EOL
{
        printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno());
        menu_add_entry(NULL);
        menu_add_dep($2);
        menu_end_entry();
        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 if_block if_end
        | if if_block
{
        printf("%s:%d: missing 'endif' for this 'if' statement\n", current_menu->file->name, current_menu->lineno);
        zconfnerrs++;
};
 
if_block:
          /* empty */
        | if_block common_block
        | if_block menu_stmt
        | if_block choice_stmt
;
 
/* menu entry */
 
menu: T_MENU prompt T_EOL
{
        menu_add_entry(NULL);
        menu_add_prop(P_MENU, $2, NULL, NULL);
        printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno());
};
 
menu_entry: menu depends_list
{
        menu_end_entry();
        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_entry menu_block
{
        printf("%s:%d: missing 'endmenu' for this 'menu' statement\n", current_menu->file->name, current_menu->lineno);
        zconfnerrs++;
};
 
menu_block:
          /* empty */
        | menu_block common_block
        | menu_block menu_stmt
        | menu_block choice_stmt
        | menu_block error T_EOL                { zconfprint("invalid menu option"); yyerrok; }
;
 
source: T_SOURCE prompt T_EOL
{
        $$ = $2;
        printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2);
};
 
source_stmt: source
{
        zconf_nextfile($1);
};
 
/* comment entry */
 
comment: T_COMMENT prompt T_EOL
{
        menu_add_entry(NULL);
        menu_add_prop(P_COMMENT, $2, NULL, 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->sym->help = $2;
};
 
/* depends option */
 
depends_list:     /* empty */
                | depends_list depends
                | depends_list T_EOL
;
 
depends: T_DEPENDS T_ON expr T_EOL
{
        menu_add_dep($3);
        printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
}
        | T_DEPENDS expr T_EOL
{
        menu_add_dep($2);
        printd(DEBUG_PARSE, "%s:%d:depends\n", zconf_curname(), zconf_lineno());
}
        | T_REQUIRES expr T_EOL
{
        menu_add_dep($2);
        printd(DEBUG_PARSE, "%s:%d:requires\n", zconf_curname(), zconf_lineno());
};
 
/* prompt statement */
 
prompt_stmt_opt:
          /* empty */
        | prompt if_expr
{
        menu_add_prop(P_PROMPT, $1, NULL, $2);
};
 
prompt:   T_WORD
        | T_WORD_QUOTE
;
 
end:      T_ENDMENU nl_or_eof   { $$ = T_ENDMENU; }
        | T_ENDCHOICE nl_or_eof { $$ = T_ENDCHOICE; }
        | T_ENDIF nl_or_eof     { $$ = T_ENDIF; }
;
 
nl_or_eof:
        T_EOL | T_EOF;
 
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("MODULES", 0);
        rootmenu.prompt = menu_add_prop(P_MENU, "Core Configuration", NULL, NULL);
 
        //zconfdebug = 1;
        zconfparse();
        if (zconfnerrs)
                exit(1);
        menu_finalize(&rootmenu);
        for_all_symbols(i, sym) {
                if (!(sym->flags & SYMBOL_CHECKED) && sym_check_deps(sym))
                        printf("\n");
                else
                        sym->flags |= SYMBOL_CHECK_DONE;
        }
 
        sym_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";
        }
        return "";
}
 
static bool zconf_endtoken(int token, int starttoken, int endtoken)
{
        if (token != endtoken) {
                zconfprint("unexpected '%s' within %s block", zconf_tokenname(token), zconf_tokenname(starttoken));
                zconfnerrs++;
                return false;
        }
        if (current_menu->file != current_file) {
                zconfprint("'%s' in different file than '%s'", zconf_tokenname(token), zconf_tokenname(starttoken));
                zconfprint("location of the '%s'", 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() + 1);
        va_start(ap, err);
        vfprintf(stderr, err, ap);
        va_end(ap);
        fprintf(stderr, "\n");
}
 
static void zconferror(const char *err)
{
        fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
}
 
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 (sym->help) {
                int len = strlen(sym->help);
                while (sym->help[--len] == '\n')
                        sym->help[len] = 0;
                fprintf(out, "  help\n%s\n", sym->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 "confdata.c"
#include "expr.c"
#include "symbol.c"
#include "menu.c"

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[/] [core_arm/] [trunk/] [build/] [config/] [zconf.y] - Blame information for rev 2

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