--- parser3/src/classes/file.C	2024/10/22 02:44:40	1.283
+++ parser3/src/classes/file.C	2024/11/10 20:33:21	1.288
@@ -1,7 +1,7 @@
 /** @file
 	Parser: @b file parser class.
 
-	Copyright (c) 2001-2023 Art. Lebedev Studio (http://www.artlebedev.com)
+	Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com)
 	Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
 */
 
@@ -27,7 +27,7 @@
 #include "pa_vregex.h"
 #include "pa_version.h"
 
-volatile const char * IDENT_FILE_C="$Id: file.C,v 1.283 2024/10/22 02:44:40 moko Exp $";
+volatile const char * IDENT_FILE_C="$Id: file.C,v 1.288 2024/11/10 20:33:21 moko Exp $";
 
 // defines
 
@@ -57,7 +57,12 @@ public:
 	}
 };
 
-Table file_list_table_template(new File_list_table_template_columns);
+static Table &file_list_table_template(){
+	static Table *singleton=NULL;
+	if(singleton==NULL)
+		singleton=new Table(new File_list_table_template_columns);
+	return *singleton;
+}
 
 // class
 
@@ -555,7 +560,7 @@ static void _exec_cgi(Request& r, Method
 					if(i.value()){
 						const String *string=i.value()->get_string();
 						if(!string)
-							i.value()->bark("array element is '%s', it does not string value");
+							i.value()->bark("array element is '%s', it does not have string value");
 						append_to_argv(r, argv, string);
 					}
 				}
@@ -563,6 +568,15 @@ static void _exec_cgi(Request& r, Method
 				throw Exception(PARSER_RUNTIME, 0, "param must be string or table or array of strings");
 			}
 		}
+
+		// remove trailing empty arguments for backward compatibility
+		for(ArrayString::ReverseIterator i(argv); i;){
+			if(i.prev()->is_empty()){ // here for correct i.index()
+				argv.remove(i.index());
+			} else {
+				break;
+			}
+		}
 	}
 
 	// transcode if necessary
@@ -728,7 +742,7 @@ static void _list(Request& r, MethodPara
 	const char* absolute_path_cstr=r.full_disk_path(relative_path.as_string()).taint_cstr(String::L_FILE_SPEC);
 
 	Table::Action_options table_options;
-	Table& table=*new Table(file_list_table_template, table_options);
+	Table& table=*new Table(file_list_table_template(), table_options);
 
 	const int ovector_size=(1/*match*/)*3;
 	int ovector[ovector_size];