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/jEdit/tags/jedit-4-3-pre5/macros/Editing/Greedy_Right.bsh

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Unknown | 86 lines | 79 code | 7 blank | 0 comment | 0 complexity | 31b07e0d1729a88639545397fe5f6e9e MD5 | raw file
 1/*
 2 * Greedy_Right.bsh - If a buffer is using soft tabs,
 3 * this macro will move the caret tabSize spaces to the right,
 4 * if all the characters between the caret and the next
 5 * tab stop are all spaces.  In all other cases, the caret
 6 * is moved a single character to the right.
 7 *
 8 * Copyright (C) 2004 Ollie Rutherfurd <oliver@jedit.org>
 9 *
10 * $Id: Greedy_Right.bsh 5230 2005-07-20 13:31:08Z orutherfurd $
11 */
12
13/**
14 * @param onlyFullTabs if true, the caret will only be moved
15 *                     multiple spaces it would constitute
16 *                     a 'complete' tab.
17 */
18void greedyRight(View view, boolean onlyFullTabs)
19{
20	JEditTextArea textArea = view.getTextArea();
21	JEditBuffer buffer = textArea.getBuffer();
22	int caret = textArea.getCaretPosition();
23	int caretLine = textArea.getCaretLine();
24	int lineStart = textArea.getLineStartOffset(caretLine);
25	int lineEnd = textArea.getLineEndOffset(caretLine);
26
27	if(textArea.getCaretPosition() == buffer.getLength())
28		return;
29
30	if(buffer.getBooleanProperty("noTabs") == true)
31	{
32		// if anything is selected, use standard 
33		if(textArea.getSelection().length != 0)
34		{
35			textArea.setCaretPosition(caret+1);
36		}
37		// if at the end of the line, go to the 
38		// start of the next line (+1 for \n)
39		else if(caret+1 >= lineEnd)
40		{
41			textArea.setCaretPosition(caret+1);
42		}
43		else
44		{
45			int col = caret - lineStart;
46			int tabSize = buffer.getIntegerProperty("tabSize",8);
47
48			// unlikely, but just in case
49			if(tabSize <= 0)
50			{
51				textArea.setCaretPosition(caret+11);
52			}
53			else
54			{
55				int toTabStop = (((col+tabSize)-1) % tabSize) + 1;
56				String chunk = "";
57				if((caret + toTabStop) <= buffer.getLength())
58					chunk = buffer.getText(caret,toTabStop);
59				int count = 0;
60				for(int i=0; i < chunk.length(); i++)
61				{
62					if(' ' != chunk.charAt(i))
63					{
64						break;
65					}
66					count += 1;
67				}
68
69				// if onlyFullTabs must be only spaces to
70				// the tabStop and must have tabSize number 
71				// of spaces to remove them all.
72				if(onlyFullTabs == false || count == tabSize){
73					textArea.setCaretPosition(caret+count);
74				}
75				else{
76					textArea.setCaretPosition(caret+1);
77				}
78			}
79		}
80	}
81	else
82		textArea.setCaretPosition(caret+1);
83}
84
85greedyRight(view,true);
86