X-Git-Url: https://jxself.org/git/?p=carl9170fw.git;a=blobdiff_plain;f=config%2Fzconf.y;h=228a14b24faee961505cb3e473fbcac0d4c5c80b;hp=f2b97443142dbc734efacd913a274a89f1167f16;hb=b142d1663623ec9d7299798e18167d2bf50f8d9b;hpb=2f1132cbcec40e431991cda7ff3744455b46c3df

diff --git a/config/zconf.y b/config/zconf.y
index f2b9744..228a14b 100644
--- a/config/zconf.y
+++ b/config/zconf.y
@@ -20,10 +20,10 @@
 
 int cdebug = PRINTD;
 
-extern int zconflex(void);
+int yylex(void);
+static void yyerror(const char *err);
 static void zconfprint(const char *err, ...);
 static void zconf_error(const char *err, ...);
-static void zconferror(const char *err);
 static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtoken);
 
 struct symbol *symbol_hash[SYMBOL_HASHSIZE];
@@ -109,7 +109,7 @@ static struct menu *current_menu, *current_entry;
 %%
 input: nl start | start;
 
-start: mainmenu_stmt stmt_list | no_mainmenu_stmt stmt_list;
+start: mainmenu_stmt stmt_list | stmt_list;
 
 /* mainmenu entry */
 
@@ -118,19 +118,6 @@ mainmenu_stmt: T_MAINMENU prompt nl
 	menu_add_prompt(P_MENU, $2, NULL);
 };
 
-/* Default main menu, if there's no mainmenu entry */
-
-no_mainmenu_stmt: /* empty */
-{
-	/*
-	 * Hack: Keep the main menu title on the heap so we can safely free it
-	 * later regardless of whether it comes from the 'prompt' in
-	 * mainmenu_stmt or here
-	 */
-	menu_add_prompt(P_MENU, strdup("Linux Kernel Configuration"), NULL);
-};
-
-
 stmt_list:
 	  /* empty */
 	| stmt_list common_stmt
@@ -276,6 +263,7 @@ choice: T_CHOICE word_opt T_EOL
 	sym->flags |= SYMBOL_AUTO;
 	menu_add_entry(sym);
 	menu_add_expr(P_CHOICE, NULL, NULL);
+	free($2);
 	printd(DEBUG_PARSE, "%s:%d:choice\n", zconf_curname(), zconf_lineno());
 };
 
@@ -431,6 +419,17 @@ help_start: T_HELP T_EOL
 
 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;
 };
 
@@ -516,35 +515,33 @@ word_opt: /* empty */			{ $$ = NULL; }
 
 void conf_parse(const char *name)
 {
-	const char *tmp;
 	struct symbol *sym;
 	int i;
 
 	zconf_initscan(name);
 
-	sym_init();
 	_menu_init();
 	rootmenu.prompt = menu_add_prompt(P_MENU, "CARL9170 Firmware Configuration", NULL);
 
 	if (getenv("ZCONF_DEBUG"))
-		zconfdebug = 1;
-	zconfparse();
-	if (zconfnerrs)
+		yydebug = 1;
+	yyparse();
+	if (yynerrs)
 		exit(1);
 	if (!modules_sym)
 		modules_sym = sym_find( "n" );
 
-	tmp = rootmenu.prompt->text;
-	rootmenu.prompt->text = _(rootmenu.prompt->text);
-	rootmenu.prompt->text = sym_expand_string_value(rootmenu.prompt->text);
-	free((char*)tmp);
+	if (!menu_has_prompt(&rootmenu)) {
+		current_entry = &rootmenu;
+		menu_add_prompt(P_MENU, "Linux Kernel Configuration", NULL);
+	}
 
 	menu_finalize(&rootmenu);
 	for_all_symbols(i, sym) {
 		if (sym_check_deps(sym))
-			zconfnerrs++;
+			yynerrs++;
 	}
-	if (zconfnerrs)
+	if (yynerrs)
 		exit(1);
 	sym_set_change_count(1);
 }
@@ -569,7 +566,7 @@ static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtok
 	if (id->token != endtoken) {
 		zconf_error("unexpected '%s' within %s block",
 			id->name, zconf_tokenname(starttoken));
-		zconfnerrs++;
+		yynerrs++;
 		return false;
 	}
 	if (current_menu->file != current_file) {
@@ -578,7 +575,7 @@ static bool zconf_endtoken(const struct kconf_id *id, int starttoken, int endtok
 		fprintf(stderr, "%s:%d: location of the '%s'\n",
 			current_menu->file->name, current_menu->lineno,
 			zconf_tokenname(starttoken));
-		zconfnerrs++;
+		yynerrs++;
 		return false;
 	}
 	return true;
@@ -599,7 +596,7 @@ static void zconf_error(const char *err, ...)
 {
 	va_list ap;
 
-	zconfnerrs++;
+	yynerrs++;
 	fprintf(stderr, "%s:%d: ", zconf_curname(), zconf_lineno());
 	va_start(ap, err);
 	vfprintf(stderr, err, ap);
@@ -607,7 +604,7 @@ static void zconf_error(const char *err, ...)
 	fprintf(stderr, "\n");
 }
 
-static void zconferror(const char *err)
+static void yyerror(const char *err)
 {
 	fprintf(stderr, "%s:%d: %s\n", zconf_curname(), zconf_lineno() + 1, err);
 }
@@ -769,3 +766,4 @@ void zconfdump(FILE *out)
 #include "expr.c"
 #include "symbol.c"
 #include "menu.c"
+#include "preprocess.c"