From: Masahiro Yamada Date: Thu, 24 Jan 2019 10:47:30 +0000 (+0900) Subject: kconfig: rename zconf.y to parser.y X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=a98a38a3d941d209b429b9a1b646506db0a6db72;p=carl9170fw.git kconfig: rename zconf.y to parser.y Use a more logical name. Signed-off-by: Masahiro Yamada Signed-off-by: Christian Lamparter --- diff --git a/config/expr.h b/config/expr.h index 999edb6..8dde65b 100644 --- a/config/expr.h +++ b/config/expr.h @@ -172,7 +172,7 @@ struct symbol { * int "BAZ Value" * range 1..255 * - * Please, also check zconf.y:print_symbol() when modifying the + * Please, also check parser.y:print_symbol() when modifying the * list of property types! */ enum prop_type { diff --git a/config/lexer.l b/config/lexer.l index c52cce8..80665ae 100644 --- a/config/lexer.l +++ b/config/lexer.l @@ -15,7 +15,7 @@ #include #include "lkc.h" -#include "zconf.tab.h" +#include "parser.tab.h" #define YY_DECL static int yylex1(void) diff --git a/config/parser.y b/config/parser.y new file mode 100644 index 0000000..60936c7 --- /dev/null +++ b/config/parser.y @@ -0,0 +1,731 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2002 Roman Zippel + */ +%{ + +#include +#include +#include +#include +#include +#include + +#include "lkc.h" + +#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt) + +#define PRINTD 0x0001 +#define DEBUG_PARSE 0x0002 + +int cdebug = PRINTD; + +static void yyerror(const char *err); +static void zconfprint(const char *err, ...); +static void zconf_error(const char *err, ...); +static bool zconf_endtoken(const char *tokenname, + const char *expected_tokenname); + +struct symbol *symbol_hash[SYMBOL_HASHSIZE]; + +static struct menu *current_menu, *current_entry; + +%} + +%union +{ + char *string; + struct symbol *symbol; + struct expr *expr; + struct menu *menu; + enum symbol_type type; + enum variable_flavor flavor; +} + +%token T_HELPTEXT +%token T_WORD +%token T_WORD_QUOTE +%token T_ALLNOCONFIG_Y +%token T_BOOL +%token T_CHOICE +%token T_CLOSE_PAREN +%token T_COLON_EQUAL +%token T_COMMENT +%token T_CONFIG +%token T_DEFAULT +%token T_DEFCONFIG_LIST +%token T_DEF_BOOL +%token T_DEF_TRISTATE +%token T_DEPENDS +%token T_ENDCHOICE +%token T_ENDIF +%token T_ENDMENU +%token T_HELP +%token T_HEX +%token T_IF +%token T_IMPLY +%token T_INT +%token T_MAINMENU +%token T_MENU +%token T_MENUCONFIG +%token T_MODULES +%token T_ON +%token T_OPEN_PAREN +%token T_OPTION +%token T_OPTIONAL +%token T_PLUS_EQUAL +%token T_PROMPT +%token T_RANGE +%token T_SELECT +%token T_SOURCE +%token T_STRING +%token T_TRISTATE +%token T_VISIBLE +%token T_EOL +%token T_ASSIGN_VAL + +%left T_OR +%left T_AND +%left T_EQUAL T_UNEQUAL +%left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL +%nonassoc T_NOT + +%type prompt +%type nonconst_symbol +%type symbol +%type type logic_type default +%type expr +%type if_expr +%type end +%type if_entry menu_entry choice_entry +%type word_opt assign_val +%type assign_op + +%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: mainmenu_stmt stmt_list | stmt_list; + +/* mainmenu entry */ + +mainmenu_stmt: T_MAINMENU prompt T_EOL +{ + menu_add_prompt(P_MENU, $2, NULL); +}; + +stmt_list: + /* empty */ + | stmt_list common_stmt + | stmt_list choice_stmt + | stmt_list menu_stmt + | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); } + | stmt_list error T_EOL { zconf_error("invalid statement"); } +; + +common_stmt: + if_stmt + | comment_stmt + | config_stmt + | menuconfig_stmt + | source_stmt + | assignment_stmt +; + +/* config/menuconfig entry */ + +config_entry_start: T_CONFIG nonconst_symbol T_EOL +{ + $2->flags |= SYMBOL_OPTIONAL; + menu_add_entry($2); + printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name); +}; + +config_stmt: config_entry_start config_option_list +{ + printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno()); +}; + +menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL +{ + $2->flags |= SYMBOL_OPTIONAL; + menu_add_entry($2); + printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name); +}; + +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"); + 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: type prompt_stmt_opt T_EOL +{ + menu_set_type($1); + printd(DEBUG_PARSE, "%s:%d:type(%u)\n", + zconf_curname(), zconf_lineno(), + $1); +}; + +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: default expr if_expr T_EOL +{ + menu_add_expr(P_DEFAULT, $2, $3); + if ($1 != S_UNKNOWN) + menu_set_type($1); + printd(DEBUG_PARSE, "%s:%d:default(%u)\n", + zconf_curname(), zconf_lineno(), + $1); +}; + +config_option: T_SELECT nonconst_symbol if_expr T_EOL +{ + menu_add_symbol(P_SELECT, $2, $3); + printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno()); +}; + +config_option: T_IMPLY nonconst_symbol if_expr T_EOL +{ + menu_add_symbol(P_IMPLY, $2, $3); + printd(DEBUG_PARSE, "%s:%d:imply\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()); +}; + +config_option: T_OPTION T_MODULES T_EOL +{ + menu_add_option_modules(); +}; + +config_option: T_OPTION T_DEFCONFIG_LIST T_EOL +{ + menu_add_option_defconfig_list(); +}; + +config_option: T_OPTION T_ALLNOCONFIG_Y T_EOL +{ + menu_add_option_allnoconfig_y(); +}; + +/* choice entry */ + +choice: T_CHOICE word_opt T_EOL +{ + struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE); + sym->flags |= SYMBOL_NO_WRITE; + menu_add_entry(sym); + menu_add_expr(P_CHOICE, NULL, NULL); + free($2); + 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, "choice")) { + 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: 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: logic_type prompt_stmt_opt T_EOL +{ + menu_set_type($1); + printd(DEBUG_PARSE, "%s:%d:type(%u)\n", + zconf_curname(), zconf_lineno(), $1); +}; + +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 nonconst_symbol if_expr T_EOL +{ + menu_add_symbol(P_DEFAULT, $2, $3); + printd(DEBUG_PARSE, "%s:%d:default\n", + zconf_curname(), zconf_lineno()); +}; + +type: + logic_type + | T_INT { $$ = S_INT; } + | T_HEX { $$ = S_HEX; } + | T_STRING { $$ = S_STRING; } + +logic_type: + T_BOOL { $$ = S_BOOLEAN; } + | T_TRISTATE { $$ = S_TRISTATE; } + +default: + T_DEFAULT { $$ = S_UNKNOWN; } + | T_DEF_BOOL { $$ = S_BOOLEAN; } + | T_DEF_TRISTATE { $$ = S_TRISTATE; } + +choice_block: + /* empty */ + | choice_block common_stmt +; + +/* if entry */ + +if_entry: T_IF expr T_EOL +{ + printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno()); + menu_add_entry(NULL); + menu_add_dep($2); + $$ = menu_add_menu(); +}; + +if_end: end +{ + if (zconf_endtoken($1, "if")) { + menu_end_menu(); + printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno()); + } +}; + +if_stmt: if_entry stmt_list if_end +; + +/* menu entry */ + +menu: T_MENU prompt T_EOL +{ + menu_add_entry(NULL); + menu_add_prompt(P_MENU, $2, NULL); + printd(DEBUG_PARSE, "%s:%d:menu\n", zconf_curname(), zconf_lineno()); +}; + +menu_entry: menu menu_option_list +{ + $$ = menu_add_menu(); +}; + +menu_end: end +{ + if (zconf_endtoken($1, "menu")) { + menu_end_menu(); + printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno()); + } +}; + +menu_stmt: menu_entry stmt_list menu_end +; + +menu_option_list: + /* empty */ + | menu_option_list visible + | menu_option_list depends +; + +source_stmt: T_SOURCE prompt T_EOL +{ + printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2); + zconf_nextfile($2); + free($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 comment_option_list +; + +comment_option_list: + /* empty */ + | comment_option_list depends +; + +/* 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 +{ + if (current_entry->help) { + free(current_entry->help); + zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used", + current_entry->sym->name ?: ""); + } + + /* Is the help text empty or all whitespace? */ + if ($2[strspn($2, " \f\n\r\t\v")] == '\0') + zconfprint("warning: '%s' defined with blank help text", + current_entry->sym->name ?: ""); + + current_entry->help = $2; +}; + +/* depends option */ + +depends: T_DEPENDS T_ON expr T_EOL +{ + menu_add_dep($3); + printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno()); +}; + +/* visibility option */ +visible: T_VISIBLE if_expr T_EOL +{ + menu_add_visibility($2); +}; + +/* 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 { $$ = "menu"; } + | T_ENDCHOICE T_EOL { $$ = "choice"; } + | T_ENDIF T_EOL { $$ = "if"; } +; + +if_expr: /* empty */ { $$ = NULL; } + | T_IF expr { $$ = $2; } +; + +expr: symbol { $$ = expr_alloc_symbol($1); } + | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); } + | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); } + | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); } + | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); } + | 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); } +; + +/* For symbol definitions, selects, etc., where quotes are not accepted */ +nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }; + +symbol: nonconst_symbol + | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); } +; + +word_opt: /* empty */ { $$ = NULL; } + | T_WORD + +/* assignment statement */ + +assignment_stmt: T_WORD assign_op assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); } + +assign_op: + T_EQUAL { $$ = VAR_RECURSIVE; } + | T_COLON_EQUAL { $$ = VAR_SIMPLE; } + | T_PLUS_EQUAL { $$ = VAR_APPEND; } +; + +assign_val: + /* empty */ { $$ = xstrdup(""); }; + | T_ASSIGN_VAL +; + +%% + +void conf_parse(const char *name) +{ + struct symbol *sym; + int i; + + zconf_initscan(name); + + _menu_init(); + + if (getenv("ZCONF_DEBUG")) + yydebug = 1; + yyparse(); + + /* Variables are expanded in the parse phase. We can free them here. */ + variable_all_del(); + + if (yynerrs) + exit(1); + if (!modules_sym) + modules_sym = sym_find( "n" ); + + if (!menu_has_prompt(&rootmenu)) { + current_entry = &rootmenu; + menu_add_prompt(P_MENU, "Main menu", NULL); + } + + menu_finalize(&rootmenu); + for_all_symbols(i, sym) { + if (sym_check_deps(sym)) + yynerrs++; + } + if (yynerrs) + exit(1); + sym_set_change_count(1); +} + +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 "util.c" +#include "menu.c" diff --git a/config/zconf.y b/config/zconf.y deleted file mode 100644 index 60936c7..0000000 --- a/config/zconf.y +++ /dev/null @@ -1,731 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 2002 Roman Zippel - */ -%{ - -#include -#include -#include -#include -#include -#include - -#include "lkc.h" - -#define printd(mask, fmt...) if (cdebug & (mask)) printf(fmt) - -#define PRINTD 0x0001 -#define DEBUG_PARSE 0x0002 - -int cdebug = PRINTD; - -static void yyerror(const char *err); -static void zconfprint(const char *err, ...); -static void zconf_error(const char *err, ...); -static bool zconf_endtoken(const char *tokenname, - const char *expected_tokenname); - -struct symbol *symbol_hash[SYMBOL_HASHSIZE]; - -static struct menu *current_menu, *current_entry; - -%} - -%union -{ - char *string; - struct symbol *symbol; - struct expr *expr; - struct menu *menu; - enum symbol_type type; - enum variable_flavor flavor; -} - -%token T_HELPTEXT -%token T_WORD -%token T_WORD_QUOTE -%token T_ALLNOCONFIG_Y -%token T_BOOL -%token T_CHOICE -%token T_CLOSE_PAREN -%token T_COLON_EQUAL -%token T_COMMENT -%token T_CONFIG -%token T_DEFAULT -%token T_DEFCONFIG_LIST -%token T_DEF_BOOL -%token T_DEF_TRISTATE -%token T_DEPENDS -%token T_ENDCHOICE -%token T_ENDIF -%token T_ENDMENU -%token T_HELP -%token T_HEX -%token T_IF -%token T_IMPLY -%token T_INT -%token T_MAINMENU -%token T_MENU -%token T_MENUCONFIG -%token T_MODULES -%token T_ON -%token T_OPEN_PAREN -%token T_OPTION -%token T_OPTIONAL -%token T_PLUS_EQUAL -%token T_PROMPT -%token T_RANGE -%token T_SELECT -%token T_SOURCE -%token T_STRING -%token T_TRISTATE -%token T_VISIBLE -%token T_EOL -%token T_ASSIGN_VAL - -%left T_OR -%left T_AND -%left T_EQUAL T_UNEQUAL -%left T_LESS T_LESS_EQUAL T_GREATER T_GREATER_EQUAL -%nonassoc T_NOT - -%type prompt -%type nonconst_symbol -%type symbol -%type type logic_type default -%type expr -%type if_expr -%type end -%type if_entry menu_entry choice_entry -%type word_opt assign_val -%type assign_op - -%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: mainmenu_stmt stmt_list | stmt_list; - -/* mainmenu entry */ - -mainmenu_stmt: T_MAINMENU prompt T_EOL -{ - menu_add_prompt(P_MENU, $2, NULL); -}; - -stmt_list: - /* empty */ - | stmt_list common_stmt - | stmt_list choice_stmt - | stmt_list menu_stmt - | stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); } - | stmt_list error T_EOL { zconf_error("invalid statement"); } -; - -common_stmt: - if_stmt - | comment_stmt - | config_stmt - | menuconfig_stmt - | source_stmt - | assignment_stmt -; - -/* config/menuconfig entry */ - -config_entry_start: T_CONFIG nonconst_symbol T_EOL -{ - $2->flags |= SYMBOL_OPTIONAL; - menu_add_entry($2); - printd(DEBUG_PARSE, "%s:%d:config %s\n", zconf_curname(), zconf_lineno(), $2->name); -}; - -config_stmt: config_entry_start config_option_list -{ - printd(DEBUG_PARSE, "%s:%d:endconfig\n", zconf_curname(), zconf_lineno()); -}; - -menuconfig_entry_start: T_MENUCONFIG nonconst_symbol T_EOL -{ - $2->flags |= SYMBOL_OPTIONAL; - menu_add_entry($2); - printd(DEBUG_PARSE, "%s:%d:menuconfig %s\n", zconf_curname(), zconf_lineno(), $2->name); -}; - -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"); - 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: type prompt_stmt_opt T_EOL -{ - menu_set_type($1); - printd(DEBUG_PARSE, "%s:%d:type(%u)\n", - zconf_curname(), zconf_lineno(), - $1); -}; - -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: default expr if_expr T_EOL -{ - menu_add_expr(P_DEFAULT, $2, $3); - if ($1 != S_UNKNOWN) - menu_set_type($1); - printd(DEBUG_PARSE, "%s:%d:default(%u)\n", - zconf_curname(), zconf_lineno(), - $1); -}; - -config_option: T_SELECT nonconst_symbol if_expr T_EOL -{ - menu_add_symbol(P_SELECT, $2, $3); - printd(DEBUG_PARSE, "%s:%d:select\n", zconf_curname(), zconf_lineno()); -}; - -config_option: T_IMPLY nonconst_symbol if_expr T_EOL -{ - menu_add_symbol(P_IMPLY, $2, $3); - printd(DEBUG_PARSE, "%s:%d:imply\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()); -}; - -config_option: T_OPTION T_MODULES T_EOL -{ - menu_add_option_modules(); -}; - -config_option: T_OPTION T_DEFCONFIG_LIST T_EOL -{ - menu_add_option_defconfig_list(); -}; - -config_option: T_OPTION T_ALLNOCONFIG_Y T_EOL -{ - menu_add_option_allnoconfig_y(); -}; - -/* choice entry */ - -choice: T_CHOICE word_opt T_EOL -{ - struct symbol *sym = sym_lookup($2, SYMBOL_CHOICE); - sym->flags |= SYMBOL_NO_WRITE; - menu_add_entry(sym); - menu_add_expr(P_CHOICE, NULL, NULL); - free($2); - printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno()); -}; - -choice_entry: choice choice_option_list -{ - $$ = menu_add_menu(); -}; - -choice_end: end -{ - if (zconf_endtoken($1, "choice")) { - menu_end_menu(); - printd(DEBUG_PARSE, "%s:%d:endchoice\n", zconf_curname(), zconf_lineno()); - } -}; - -choice_stmt: choice_entry choice_block choice_end -; - -choice_option_list: - /* empty */ - | choice_option_list choice_option - | choice_option_list depends - | choice_option_list help -; - -choice_option: T_PROMPT prompt if_expr T_EOL -{ - menu_add_prompt(P_PROMPT, $2, $3); - printd(DEBUG_PARSE, "%s:%d:prompt\n", zconf_curname(), zconf_lineno()); -}; - -choice_option: logic_type prompt_stmt_opt T_EOL -{ - menu_set_type($1); - printd(DEBUG_PARSE, "%s:%d:type(%u)\n", - zconf_curname(), zconf_lineno(), $1); -}; - -choice_option: T_OPTIONAL T_EOL -{ - current_entry->sym->flags |= SYMBOL_OPTIONAL; - printd(DEBUG_PARSE, "%s:%d:optional\n", zconf_curname(), zconf_lineno()); -}; - -choice_option: T_DEFAULT nonconst_symbol if_expr T_EOL -{ - menu_add_symbol(P_DEFAULT, $2, $3); - printd(DEBUG_PARSE, "%s:%d:default\n", - zconf_curname(), zconf_lineno()); -}; - -type: - logic_type - | T_INT { $$ = S_INT; } - | T_HEX { $$ = S_HEX; } - | T_STRING { $$ = S_STRING; } - -logic_type: - T_BOOL { $$ = S_BOOLEAN; } - | T_TRISTATE { $$ = S_TRISTATE; } - -default: - T_DEFAULT { $$ = S_UNKNOWN; } - | T_DEF_BOOL { $$ = S_BOOLEAN; } - | T_DEF_TRISTATE { $$ = S_TRISTATE; } - -choice_block: - /* empty */ - | choice_block common_stmt -; - -/* if entry */ - -if_entry: T_IF expr T_EOL -{ - printd(DEBUG_PARSE, "%s:%d:if\n", zconf_curname(), zconf_lineno()); - menu_add_entry(NULL); - menu_add_dep($2); - $$ = menu_add_menu(); -}; - -if_end: end -{ - if (zconf_endtoken($1, "if")) { - menu_end_menu(); - printd(DEBUG_PARSE, "%s:%d:endif\n", zconf_curname(), zconf_lineno()); - } -}; - -if_stmt: if_entry stmt_list if_end -; - -/* 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 menu_option_list -{ - $$ = menu_add_menu(); -}; - -menu_end: end -{ - if (zconf_endtoken($1, "menu")) { - menu_end_menu(); - printd(DEBUG_PARSE, "%s:%d:endmenu\n", zconf_curname(), zconf_lineno()); - } -}; - -menu_stmt: menu_entry stmt_list menu_end -; - -menu_option_list: - /* empty */ - | menu_option_list visible - | menu_option_list depends -; - -source_stmt: T_SOURCE prompt T_EOL -{ - printd(DEBUG_PARSE, "%s:%d:source %s\n", zconf_curname(), zconf_lineno(), $2); - zconf_nextfile($2); - free($2); -}; - -/* comment entry */ - -comment: T_COMMENT prompt T_EOL -{ - menu_add_entry(NULL); - menu_add_prompt(P_COMMENT, $2, NULL); - printd(DEBUG_PARSE, "%s:%d:comment\n", zconf_curname(), zconf_lineno()); -}; - -comment_stmt: comment comment_option_list -; - -comment_option_list: - /* empty */ - | comment_option_list depends -; - -/* help option */ - -help_start: T_HELP T_EOL -{ - printd(DEBUG_PARSE, "%s:%d:help\n", zconf_curname(), zconf_lineno()); - zconf_starthelp(); -}; - -help: help_start T_HELPTEXT -{ - if (current_entry->help) { - free(current_entry->help); - zconfprint("warning: '%s' defined with more than one help text -- only the last one will be used", - current_entry->sym->name ?: ""); - } - - /* Is the help text empty or all whitespace? */ - if ($2[strspn($2, " \f\n\r\t\v")] == '\0') - zconfprint("warning: '%s' defined with blank help text", - current_entry->sym->name ?: ""); - - current_entry->help = $2; -}; - -/* depends option */ - -depends: T_DEPENDS T_ON expr T_EOL -{ - menu_add_dep($3); - printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno()); -}; - -/* visibility option */ -visible: T_VISIBLE if_expr T_EOL -{ - menu_add_visibility($2); -}; - -/* prompt statement */ - -prompt_stmt_opt: - /* empty */ - | prompt if_expr -{ - menu_add_prompt(P_PROMPT, $1, $2); -}; - -prompt: T_WORD - | T_WORD_QUOTE -; - -end: T_ENDMENU T_EOL { $$ = "menu"; } - | T_ENDCHOICE T_EOL { $$ = "choice"; } - | T_ENDIF T_EOL { $$ = "if"; } -; - -if_expr: /* empty */ { $$ = NULL; } - | T_IF expr { $$ = $2; } -; - -expr: symbol { $$ = expr_alloc_symbol($1); } - | symbol T_LESS symbol { $$ = expr_alloc_comp(E_LTH, $1, $3); } - | symbol T_LESS_EQUAL symbol { $$ = expr_alloc_comp(E_LEQ, $1, $3); } - | symbol T_GREATER symbol { $$ = expr_alloc_comp(E_GTH, $1, $3); } - | symbol T_GREATER_EQUAL symbol { $$ = expr_alloc_comp(E_GEQ, $1, $3); } - | symbol T_EQUAL symbol { $$ = 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 { $$ = expr_alloc_two(E_AND, $1, $3); } -; - -/* For symbol definitions, selects, etc., where quotes are not accepted */ -nonconst_symbol: T_WORD { $$ = sym_lookup($1, 0); free($1); }; - -symbol: nonconst_symbol - | T_WORD_QUOTE { $$ = sym_lookup($1, SYMBOL_CONST); free($1); } -; - -word_opt: /* empty */ { $$ = NULL; } - | T_WORD - -/* assignment statement */ - -assignment_stmt: T_WORD assign_op assign_val T_EOL { variable_add($1, $3, $2); free($1); free($3); } - -assign_op: - T_EQUAL { $$ = VAR_RECURSIVE; } - | T_COLON_EQUAL { $$ = VAR_SIMPLE; } - | T_PLUS_EQUAL { $$ = VAR_APPEND; } -; - -assign_val: - /* empty */ { $$ = xstrdup(""); }; - | T_ASSIGN_VAL -; - -%% - -void conf_parse(const char *name) -{ - struct symbol *sym; - int i; - - zconf_initscan(name); - - _menu_init(); - - if (getenv("ZCONF_DEBUG")) - yydebug = 1; - yyparse(); - - /* Variables are expanded in the parse phase. We can free them here. */ - variable_all_del(); - - if (yynerrs) - exit(1); - if (!modules_sym) - modules_sym = sym_find( "n" ); - - if (!menu_has_prompt(&rootmenu)) { - current_entry = &rootmenu; - menu_add_prompt(P_MENU, "Main menu", NULL); - } - - menu_finalize(&rootmenu); - for_all_symbols(i, sym) { - if (sym_check_deps(sym)) - yynerrs++; - } - if (yynerrs) - exit(1); - sym_set_change_count(1); -} - -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 "util.c" -#include "menu.c"