diff options
Diffstat (limited to 'release/src/router/busybox/scripts/config/zconf.y')
| -rwxr-xr-x | release/src/router/busybox/scripts/config/zconf.y | 651 |
1 files changed, 0 insertions, 651 deletions
diff --git a/release/src/router/busybox/scripts/config/zconf.y b/release/src/router/busybox/scripts/config/zconf.y deleted file mode 100755 index 301d7a89..00000000 --- a/release/src/router/busybox/scripts/config/zconf.y +++ /dev/null @@ -1,651 +0,0 @@ -%{ -/* - * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> - * Released under the terms of the GNU GPL v2.0. - */ - -#include <ctype.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stdbool.h> - -#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 36 - -%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_HELP -%token <string> 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_BOOLEAN -%token T_INT -%token T_HEX -%token <string> T_WORD -%token <string> T_STRING -%token T_UNEQUAL -%token T_EOF -%token T_EOL -%token T_CLOSE_PAREN -%token T_OPEN_PAREN -%token T_ON - -%left T_OR -%left T_AND -%left T_EQUAL T_UNEQUAL -%nonassoc T_NOT - -%type <string> prompt -%type <string> source -%type <symbol> symbol -%type <expr> expr -%type <expr> if_expr -%type <token> 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 - | source_stmt - | nl_or_eof -; - - -/* config entry */ - -config_entry_start: T_CONFIG T_WORD -{ - 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 T_EOL config_option_list -{ - menu_end_entry(); - printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno()); -}; - -config_option_list: - /* empty */ - | config_option_list config_option T_EOL - | config_option_list depends T_EOL - | config_option_list help - | config_option_list T_EOL -{ }; - -config_option: T_TRISTATE prompt_stmt_opt -{ - menu_set_type(S_TRISTATE); - printd(DEBUG_PARSE, "%s:%d:tristate\n", zconf_curname(), zconf_lineno()); -}; - -config_option: T_BOOLEAN prompt_stmt_opt -{ - menu_set_type(S_BOOLEAN); - printd(DEBUG_PARSE, "%s:%d:boolean\n", zconf_curname(), zconf_lineno()); -}; - -config_option: T_INT prompt_stmt_opt -{ - menu_set_type(S_INT); - printd(DEBUG_PARSE, "%s:%d:int\n", zconf_curname(), zconf_lineno()); -}; - -config_option: T_HEX prompt_stmt_opt -{ - menu_set_type(S_HEX); - printd(DEBUG_PARSE, "%s:%d:hex\n", zconf_curname(), zconf_lineno()); -}; - -config_option: T_STRING prompt_stmt_opt -{ - menu_set_type(S_STRING); - printd(DEBUG_PARSE, "%s:%d:string\n", zconf_curname(), zconf_lineno()); -}; - -config_option: T_PROMPT prompt if_expr -{ - menu_add_prop(P_PROMPT, $2, NULL, $3); - printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno()); -}; - -config_option: T_DEFAULT symbol if_expr -{ - menu_add_prop(P_DEFAULT, NULL, $2, $3); - printd(DEBUG_PARSE, "%s:%d:default\n", zconf_curname(), zconf_lineno()); -}; - -/* choice entry */ - -choice: T_CHOICE -{ - struct symbol *sym = sym_lookup(NULL, 0); - sym->flags |= SYMBOL_CHOICE; - menu_add_entry(sym); - menu_add_prop(P_CHOICE, NULL, NULL, NULL); - printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno()); -}; - -choice_entry: choice T_EOL 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 T_EOL - | 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 T_EOL - | choice_option_list depends T_EOL - | choice_option_list help - | choice_option_list T_EOL -; - -choice_option: T_PROMPT prompt if_expr -{ - menu_add_prop(P_PROMPT, $2, NULL, $3); - printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno()); -}; - -choice_option: T_OPTIONAL -{ - current_entry->sym->flags |= SYMBOL_OPTIONAL; - printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno()); -}; - -choice_option: T_DEFAULT symbol -{ - menu_add_prop(P_DEFAULT, NULL, $2, NULL); - //current_choice->prop->def = $2; - printd(DEBUG_PARSE, "%s:%d:default\n", zconf_curname(), zconf_lineno()); -}; - -choice_block: - /* empty */ - | choice_block common_block -; - -/* if entry */ - -if: T_IF expr -{ - printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno()); - menu_add_entry(NULL); - //current_entry->prompt = menu_add_prop(T_IF, NULL, NULL, $2); - 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 T_EOL if_block if_end T_EOL - | if T_EOL 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 -{ - 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 T_EOL 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 T_EOL - | 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 -{ - $$ = $2; - printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2); -}; - -source_stmt: source T_EOL -{ - zconf_nextfile($1); -}; - -/* comment entry */ - -comment: T_COMMENT prompt -{ - menu_add_entry(NULL); - menu_add_prop(P_COMMENT, $2, NULL, NULL); - printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno()); -}; - -comment_stmt: comment T_EOL depends_list -{ - menu_end_entry(); -}; - -/* help option */ - -help_start: T_HELP T_EOL -{ - printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno()); - zconf_starthelp(); -}; - -help: help_start T_HELPTEXT -{ - current_entry->sym->help = $2; -}; - -/* depends option */ - -depends_list: /* empty */ - | depends_list depends T_EOL - | depends_list T_EOL -{ }; - -depends: T_DEPENDS T_ON expr -{ - menu_add_dep($3); - printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno()); -} - | T_DEPENDS expr -{ - menu_add_dep($2); - printd(DEBUG_PARSE, "%s:%d:depends\n", zconf_curname(), zconf_lineno()); -} - | T_REQUIRES expr -{ - menu_add_dep($2); - printd(DEBUG_PARSE, "%s:%d:requires\n", zconf_curname(), zconf_lineno()); -}; - -/* prompt statement */ - -prompt_stmt_opt: - /* empty */ - | prompt -{ - menu_add_prop(P_PROMPT, $1, NULL, NULL); -} - | prompt T_IF expr -{ - menu_add_prop(P_PROMPT, $1, NULL, $3); -}; - -prompt: T_WORD - | T_STRING -; - -end: T_ENDMENU { $$ = T_ENDMENU; } - | T_ENDCHOICE { $$ = T_ENDCHOICE; } - | T_ENDIF { $$ = 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_STRING { $$ = sym_lookup($1, 1); free($1); } -; - -%% - -void conf_parse(const char *name) -{ - zconf_initscan(name); - - sym_init(); - menu_init(); - rootmenu.prompt = menu_add_prop(P_MENU, "BusyBox Configuration", NULL, NULL); - - //zconfdebug = 1; - zconfparse(); - if (zconfnerrs) - exit(1); - menu_finalize(&rootmenu); - - modules_sym = sym_lookup("MODULES", 0); - - 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 "<token>"; -} - -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()); - 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(), 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; - - //sym->flags |= SYMBOL_PRINTED; - - 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; - } -#if 0 - if (!expr_is_yes(sym->dep)) { - fputs(" depends ", out); - expr_fprint(sym->dep, out); - fputc('\n', out); - } -#endif - 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 (prop->def) { - fputc(' ', out); - if (prop->def->flags & SYMBOL_CONST) - print_quoted_string(out, prop->def->name); - else - fputs(prop->def->name, out); - } - if (!expr_is_yes(E_EXPR(prop->visible))) { - fputs(" if ", out); - expr_fprint(E_EXPR(prop->visible), out); - } - fputc('\n', out); - break; - case P_DEFAULT: - fputs( " default ", out); - print_quoted_string(out, prop->def->name); - if (!expr_is_yes(E_EXPR(prop->visible))) { - fputs(" if ", out); - expr_fprint(E_EXPR(prop->visible), 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 file *file; - 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 T_MAINMENU: - // fputs("\nmainmenu ", out); - // print_quoted_string(out, prop->text); - // fputs("\n", out); - // break; - 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; - //case T_SOURCE: - // fputs("\nsource ", out); - // print_quoted_string(out, prop->text); - // fputs("\n", out); - // break; - //case T_IF: - // fputs("\nif\n", out); - default: - ; - } - if (!expr_is_yes(E_EXPR(prop->visible))) { - fputs(" depends ", out); - expr_fprint(E_EXPR(prop->visible), 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" |