/*
 * MPInterp.h
 * DarwinPorts
 *
 * Copyright (c) 2002-2003, Apple Computer, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#import <Foundation/Foundation.h>
#include <tcl.h>

// package info
static NSString *MPPackageName = @"macports";
//static NSString *MPPackageVersion = @"1.0";
static NSString *MPPackageInit = @"mportinit";

// commands
static NSString *MPSearchCommand = @"mportsearch";
static NSString *MPOpenCommand = @"mportopen";
static NSString *MPExecCommand = @"mportexec";
static NSString *MPCloseCommand = @"mportclose";

// arguments
static NSString *MPAnyPortArgument = @".+";

// results
static NSString *MPYesResult = @"1";
static NSString *MPNoResult = @"0";
static NSString *MPNullResult = @"";

// ui
static NSString *MPUIPuts = @"ui_puts";

@class MPObject;

@interface MPInterp : NSObject 
{
    @private
    Tcl_Interp	*_interp; 
    int _status;
}

- (id) init;
- (BOOL) loadPackage: (NSString *)packageName version: (NSString *)packageVersion usingCommand: (NSString *)packageInit;

- (MPObject *) setVariable: (MPObject *)variable toValue: (MPObject *)value;
- (MPObject *) getVariable: (MPObject *)variable;

- (MPObject *) evaluateCommand: (MPObject *)command;
- (MPObject *) evaluateCommand: (MPObject *)command withObject: (MPObject *)arg;
- (MPObject *) evaluateCommand: (MPObject *)command withObjects: (MPObject *)arg1 :(MPObject *)arg2;
- (MPObject *) evaluate: (NSArray *)args;

- (BOOL) succeeded;

- (BOOL) redirectCommand: (NSString *) command toObject: (id)handler;

@end