--- parser3/src/include/pa_table.h	2001/03/29 20:53:03	1.27
+++ parser3/src/include/pa_table.h	2001/05/07 08:29:42	1.30
@@ -5,7 +5,7 @@
 
 	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
 
-	$Id: pa_table.h,v 1.27 2001/03/29 20:53:03 paf Exp $
+	$Id: pa_table.h,v 1.30 2001/05/07 08:29:42 paf Exp $
 */
 
 #ifndef PA_TABLE_H
@@ -15,7 +15,6 @@
 #include "pa_array.h"
 #include "pa_hash.h"
 #include "pa_string.h"
-#include "pa_request.h"
 
 /** 
 	VTable backend.
@@ -27,7 +26,9 @@
 
 	uses String for column names and data items
 
-	hence most of tables are "named", no need to uptimize nameless onces
+	hence most of tables are "named", no need to uptimize nameless onces.
+	rows and strings stored are read-only. once stored they can be removed,
+	but not altered. that's handy for quick copying & co. see table:join
 */
 class Table : public Array {
 public:
@@ -49,11 +50,16 @@ public:
 	int current() { return fcurrent; }
 	void shift(int offset);
 
+	/// @return column index from @a column_name. '<0' if no such column
+	int column_name2index(const String& column) const;
+
 	/// @return item from @a column
 	const String *item(int column) const;
-	/// @return item from @a column
-	const String *item(const String& column) const { 
-		return item(column_name2index(column)); 
+
+	/// @return item from @a column. '0' if no such column
+	const String *item(const String& column) const {
+		int index=column_name2index(column);
+		return index>=0?item(index):0;
 	}
 
 	/// saves to text file
@@ -85,10 +91,6 @@ private:
 
 	bool valid(int index) const { return index>=0 && index<size(); }
 
-	/// @return column index from @a column_name
-	int column_name2index(const String& column) const;
-
-
 };
 
 #endif