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+/**
+ STShell
+ StepTalk Shell
+
+ Copyright (c) 2002 Free Software Foundation
+
+ Written by: Stefan Urbanek <urbanek@host.sk>
+ Date: 2002 May 29
+
+ This file is part of the StepTalk project.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02111, USA.
+
+ */
+
+#import <Foundation/NSObject.h>
+
+@class STConversation;
+@class STEnvironment;
+@class STScriptsManager;
+@class NSMutableArray;
+@class NSException;
+
+@interface STShell:NSObject
+{
+ STScriptsManager *scriptsManager;
+ STConversation *conversation;
+
+ NSString *prompt;
+ NSString *source;
+
+ NSMutableArray *objectStack;
+
+ BOOL exitRequest;
+
+ BOOL updateCompletionList;
+ NSArray *completionList;
+ BOOL completionEnabled;
+
+}
+- initWithEnvironment:(STEnvironment *)env;
+
+- (void)setLanguage:(NSString *)langName;
+- (void)setEnvironment:(STEnvironment *)newEnv;
+- (STEnvironment *)environment;
+
+- (void)run;
+
+- show:(id)anObject;
+- showLine:(id)anObject;
+
+- (id)executeLine:(NSString *)line;
+
+- showResult:(id)obj;
+- showException:(NSException *)exception;
+- (void)showError:(NSString *)errString;
+@end
+
+@interface STShell(STShellOutput)
+
+- show:(id)anObject;
+- showLine:(id)anObject;
+- showResult:(id)obj;
+- (char *)displayCStringForObject:(id)object;
+- showException:(NSException *)exception;
+- (id)listObjects;
+
+@end