kconfig: rename zconf.y to parser.y
authorMasahiro Yamada <yamada.masahiro@socionext.com>
Thu, 24 Jan 2019 10:47:30 +0000 (19:47 +0900)
committerChristian Lamparter <chunkeey@gmail.com>
Fri, 27 Sep 2019 20:30:51 +0000 (22:30 +0200)
Use a more logical name.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
config/expr.h
config/lexer.l
config/parser.y [new file with mode: 0644]
config/zconf.y [deleted file]

index 999edb60cd53e9808cb8b156b80a6341f814cc46..8dde65bc3165b7d5c38ff92a2a9e18df8abeb469 100644 (file)
@@ -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 {
index c52cce8b3751bb4d034e0a68ac13aa46188647aa..80665ae17289a0c701537112061e31b44a648d16 100644 (file)
@@ -15,7 +15,7 @@
 #include <unistd.h>
 
 #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 (file)
index 0000000..60936c7
--- /dev/null
@@ -0,0 +1,731 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ */
+%{
+
+#include <ctype.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+
+#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 <string> T_HELPTEXT
+%token <string> T_WORD
+%token <string> 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 <string> 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 <string> prompt
+%type <symbol> nonconst_symbol
+%type <symbol> symbol
+%type <type> type logic_type default
+%type <expr> expr
+%type <expr> if_expr
+%type <string> end
+%type <menu> if_entry menu_entry choice_entry
+%type <string> word_opt assign_val
+%type <flavor> 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 ?: "<choice>");
+       }
+
+       /* 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 ?: "<choice>");
+
+       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 (file)
index 60936c7..0000000
+++ /dev/null
@@ -1,731 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
- */
-%{
-
-#include <ctype.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdbool.h>
-
-#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 <string> T_HELPTEXT
-%token <string> T_WORD
-%token <string> 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 <string> 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 <string> prompt
-%type <symbol> nonconst_symbol
-%type <symbol> symbol
-%type <type> type logic_type default
-%type <expr> expr
-%type <expr> if_expr
-%type <string> end
-%type <menu> if_entry menu_entry choice_entry
-%type <string> word_opt assign_val
-%type <flavor> 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 ?: "<choice>");
-       }
-
-       /* 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 ?: "<choice>");
-
-       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"