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/*

 *  R.app : a Cocoa front end to: "R A Computer Language for Statistical Data Analysis"

 *  

 *  R.app Copyright notes:

 *                     Copyright (C) 2004-5  The R Foundation

 *                     written by Stefano M. Iacus and Simon Urbanek

 *

 *                  

 *  R Copyright notes:

 *                     Copyright (C) 1995-1996   Robert Gentleman and Ross Ihaka

 *                     Copyright (C) 1998-2001   The R Development Core Team

 *                     Copyright (C) 2002-2004   The R Foundation

 *

 *  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.

 *

 *  A copy of the GNU General Public License is available via WWW at

 *  http://www.gnu.org/copyleft/gpl.html.  You can also obtain it by

 *  writing to the Free Software Foundation, Inc., 59 Temple Place,

 *  Suite 330, Boston, MA  02111-1307  USA.

 *

 *  Created by Simon Urbanek on 5/11/05.

 *  $Id: RTextView.h 7927 2021-02-12 02:19:59Z urbaneks $

 */

#import "CCComp.h"

/* RTextView is a subclass of NSTextView with some additional properties:

   - responds to <Ctrl><.> by sending complete: to self

   - responds to <Ctrl><h> by sending showHelpForCurrentFunction: to self

   - handle deleteBackward/Forward for linked matchin pairs

 Used by: console and editor

 */

// parser context in text

#define pcStringSQ   1

#define pcStringDQ   2

#define pcStringBQ   3

#define pcComment    4

#define pcExpression 5

extern BOOL RTextView_autoCloseBrackets;

@interface RTextView : NSTextView

{

	BOOL console;

	BOOL isRdDocument;

	NSInteger snippetControlArray[20][3];

	NSInteger snippetMirroredControlArray[20][3];

	NSInteger snippetControlCounter;

	NSInteger snippetControlMax;

	NSInteger currentSnippetIndex;

	NSInteger mirroredCounter;

	BOOL snippetWasJustInserted;

	BOOL isProcessingMirroredSnippets;

@private

	NSCharacterSet *separatingTokensSet;

	NSCharacterSet *undoBreakTokensSet;

	NSMutableCharacterSet *wordCharSet;

}

// Both methods are already implemented in NSTextView_RAddition but there

// one cannot init instance variable. That's why it is overwritten here to 

// be able to speed up getRangeForCurrentWordOfRange enormously

- (NSRange)getRangeForCurrentWord;

- (NSRange)getRangeForCurrentWordOfRange:(NSRange)curRange;

- (void)setConsoleMode:(BOOL)isConsole;

- (int)  parserContextForPosition:(NSInteger)position;

- (void) showHelpForCurrentFunction;

- (void) currentFunctionHint;

- (BOOL) wrapSelectionWithPrefix:(NSString *)prefix suffix:(NSString *)suffix;

- (BOOL) isNextCharMarkedBy:(id)attribute withValue:(id)aValue;

- (BOOL) isCursorAdjacentToAlphanumCharWithInsertionOf:(unichar)aChar;

- (BOOL) shiftSelectionRight;

- (BOOL) shiftSelectionLeft;

- (BOOL) isRConsole;

- (IBAction)makeASCIIconform:(id)sender;

- (IBAction)unescapeUnicode:(id)sender;

- (NSUInteger)characterIndexOfPoint:(NSPoint)aPoint;

- (void)endSnippetSession;

- (void)processMirroredSnippets;

- (void)selectCurrentSnippet;

- (void)insertAsSnippet:(NSString*)theSnippet atRange:(NSRange)targetRange;

- (BOOL)checkForCaretInsideSnippet;

- (BOOL)isSnippetMode;

- (void)checkSnippets;

- (NSDictionary*)getCurrentEnvironment;

@end