--- parser3/src/classes/table.C	2001/03/12 20:55:14	1.7
+++ parser3/src/classes/table.C	2001/03/24 15:57:57	1.25
@@ -1,43 +1,52 @@
-/*
-	Parser
+/** @file
+	Parser: table parser class.
+
 	Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
+
 	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
 
-	$Id: table.C,v 1.7 2001/03/12 20:55:14 paf Exp $
+	$Id: table.C,v 1.25 2001/03/24 15:57:57 paf Exp $
 */
 
+#include "pa_config_includes.h"
+#include "pa_common.h"
 #include "pa_request.h"
 #include "_table.h"
 #include "pa_vtable.h"
-#include "pa_common.h"
 #include "pa_vint.h"
 
 // global var
 
-VClass *table_class;
+VStateless_class *table_class;
 
 // methods
 
-
-// TODO: проверить ^set в ^menu & co
-
 static void set_or_load(
 						Request& r, 
 						const String& method_name, Array *params, 
 						bool is_load) {
 	Pool& pool=r.pool();
 	// data is last parameter
-	Value *vdata=static_cast<Value *>(params->get(params->size()-1));
+	Value *vdata_or_filename=static_cast<Value *>(params->get(params->size()-1));
 	// forcing
-	//	[this param type] 
-	//	[this param type] 
-	r.fail_if_junction_(true, *vdata, 
-		method_name, "body must not be a junction");
+	// ^load[this file name type]
+	// ^set{this body type}
+	r.fail_if_junction_(is_load, *vdata_or_filename, 
+		method_name, is_load?"file name must not be junction":"body must be junction");
 
 	// data or file_name
-	char *data_or_filename=vdata->as_string().cstr();
-	// data
-	char *data=is_load?file_read(pool, r.absolute(data_or_filename)):data_or_filename;
+	char *data;
+	if(is_load) {
+		// forcing untaint language
+		String lfile_name(pool);
+		lfile_name.append(vdata_or_filename->as_string(), String::UL_FILE_NAME, true);
+		// loading text
+		data=file_read_text(pool, r.absolute(lfile_name));
+	} else {
+		// suggesting untaint language
+		Temp_lang temp_lang(r, String::UL_TABLE);
+		data=r.process(*vdata_or_filename).as_string().cstr();
+	}
 
 	// parse columns
 	Array *columns;
@@ -74,7 +83,7 @@ static void set_or_load(
 	};
 
 	// replace any previous table value
-	r.self->as_vtable().set_table(table);
+	static_cast<VTable *>(r.self)->set_table(table);
 }
 
 
@@ -86,30 +95,85 @@ static void _load(Request& r, const Stri
 	set_or_load(r, method_name, params, true);
 }
 
+static void _save(Request& r, const String& method_name, Array *params) {
+	Pool& pool=r.pool();
+	Value *vfile_name=static_cast<Value *>(params->get(params->size()-1));
+	// forcing
+	// ^save[this body type]
+	r.fail_if_junction_(true, *vfile_name, 
+		method_name, "file name must not be junction");
+
+	// forcing untaint language
+	String lfile_name(pool);
+	lfile_name.append(vfile_name->as_string(),
+		String::UL_FILE_NAME, true);
+
+	Table& table=static_cast<VTable *>(r.self)->table();
+
+	String sdata(pool);
+	if(params->size()==1) { // not nameless=named output
+		// write out names line
+		if(const Array *columns=table.columns()) { // named table
+			for(int column=0; column<columns->size(); column++) {
+				if(column)
+					sdata.APPEND_CONST("\t");
+				sdata.append(*static_cast<String *>(columns->quick_get(column)), 
+					String::UL_TABLE);
+			}
+		} else { // nameless table
+			int size=table.size()?static_cast<Array *>(table.get(0))->size():0;
+			if(size)
+				for(int column=0; column<size; column++) {
+					char *cindex_tab=(char *)pool.malloc(MAX_NUMBER);
+					snprintf(cindex_tab, MAX_NUMBER, "%d\t", column);
+					sdata.APPEND_CONST(cindex_tab);
+				}
+			else
+				sdata.APPEND_CONST("empty nameless table");
+		}
+		sdata.APPEND_CONST("\n");
+	}
+	// data lines
+	for(int index=0; index<table.size(); index++) {
+		Array *row=static_cast<Array *>(table.quick_get(index));
+		for(int column=0; column<row->size(); column++) {
+			if(column)
+				sdata.APPEND_CONST("\t");
+			sdata.append(*static_cast<String *>(row->quick_get(column)), 
+				String::UL_TABLE);
+		}
+		sdata.APPEND_CONST("\n");
+	}
+
+	// write
+	char *cdata=sdata.cstr();
+	file_write(pool, r.absolute(lfile_name), cdata, strlen(cdata), true);
+}
+
 static void _count(Request& r, const String&, Array *) {
 	Pool& pool=r.pool();
-	Value& value=*new(pool) VInt(pool, r.self->as_vtable().table().size());
-	r.wcontext->write(value, String::Untaint_lang::NO /*always object, not string*/);
+	Value& value=*new(pool) VInt(pool, static_cast<VTable *>(r.self)->table().size());
+	r.write_no_lang(value);
 }
 
 static void _line(Request& r, const String&, Array *) {
 	Pool& pool=r.pool();
-	Value& value=*new(pool) VInt(pool, 1+r.self->as_vtable().table().get_current());
-	r.wcontext->write(value, String::Untaint_lang::NO /*always object, not string*/);
+	Value& value=*new(pool) VInt(pool, 1+static_cast<VTable *>(r.self)->table().get_current());
+	r.write_no_lang(value);
 }
 
 static void _offset(Request& r, const String&, Array *params) {
 	Pool& pool=r.pool();
-	Table& table=r.self->as_vtable().table();
+	Table& table=static_cast<VTable *>(r.self)->table();
 	if(params->size()) {
 		if(int size=table.size()) {
-			int offset=static_cast<int>(
-				r.process(*static_cast<Value *>(params->get(0))).get_double());
+			int offset=
+				(int)r.process(*static_cast<Value *>(params->get(0))).get_double();
 			table.set_current((table.get_current()+offset+size)%size);
 		}
 	} else {
 		Value& value=*new(pool) VInt(pool, table.get_current());
-		r.wcontext->write(value, String::Untaint_lang::NO /*always object, not string*/);
+		r.write_no_lang(value);
 	}
 }
 
@@ -121,10 +185,10 @@ static void _menu(Request& r, const Stri
 	
 	Value *delim_code=params->size()==2?static_cast<Value *>(params->get(1)):0;
 
-	Table& table=r.self->as_vtable().table();
+	Table& table=static_cast<VTable *>(r.self)->table();
 	bool need_delim=false;
-	for(int i=0; i<table.size(); i++) {
-		table.set_current(i);
+	for(int row=0; row<table.size(); row++) {
+		table.set_current(row);
 
 		Value& processed_body=r.process(body_code);
 		if(delim_code) { // delimiter set?
@@ -137,22 +201,48 @@ static void _menu(Request& r, const Stri
 	}
 }
 
-void initialize_table_class(Pool& pool, VClass& vclass) {
-	// ^table.set[data]  ^table.set[nameless;data]
+static void _empty(Request& r, const String&, Array *params) {
+	Table& table=static_cast<VTable *>(r.self)->table();
+	if(table.size()==0) {
+		Value& value=r.process(*static_cast<Value *>(params->get(0)));
+		r.write_pass_lang(value);
+	} else if(params->size()==2) {
+		Value& value=r.process(*static_cast<Value *>(params->get(1)));
+		r.write_pass_lang(value);
+	}
+}
+
+// initialize
+
+void initialize_table_class(Pool& pool, VStateless_class& vclass) {
+	// ^table.set{data}
+	// ^table.set[nameless]{data}
 	vclass.add_native_method("set", _set, 1, 2);
 
-	// ^table.load[file]  ^table.load[nameless;file]
+	// ^table.load[file]  
+	// ^table.load[nameless;file]
 	vclass.add_native_method("load", _load, 1, 2);
 
+	// ^table.save[file]  
+	// ^table.save[nameless;file]
+	vclass.add_native_method("save", _save, 1, 2);
+
 	// ^table.count[]
 	vclass.add_native_method("count", _count, 0, 0);
 
 	// ^table.line[]
 	vclass.add_native_method("line", _line, 0, 0);
 
-	// ^table.offset[]  ^table.offset[offset]
+	// ^table.offset[]  
+	// ^table.offset[offset]
 	vclass.add_native_method("offset", _offset, 0, 1);
 
-	// ^table.menu{code}  ^table.menu{code}[delim]
+	// ^table.menu{code}  
+	// ^table.menu{code}[delim]
 	vclass.add_native_method("menu", _menu, 1, 2);
+
+	// ^table.empty{code-when-empty}  
+	// ^table.empty{code-when-empty}{code-when-not}
+	vclass.add_native_method("empty", _empty, 1, 2);
+
 }