Package: VdmWordFinder

VdmWordFinder

nameinstructionbranchcomplexitylinemethod
VdmWordFinder()
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findWord(IDocument, int)
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M: 1 C: 0
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Coverage

1: /*
2: * #%~
3: * org.overture.ide.debug
4: * %%
5: * Copyright (C) 2008 - 2014 Overture
6: * %%
7: * This program is free software: you can redistribute it and/or modify
8: * it under the terms of the GNU General Public License as
9: * published by the Free Software Foundation, either version 3 of the
10: * License, or (at your option) any later version.
11: *
12: * This program is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: * GNU General Public License for more details.
16: *
17: * You should have received a copy of the GNU General Public
18: * License along with this program. If not, see
19: * <http://www.gnu.org/licenses/gpl-3.0.html>.
20: * #~%
21: */
22: package org.overture.ide.debug.utils;
23:
24: import org.eclipse.jface.text.BadLocationException;
25: import org.eclipse.jface.text.IDocument;
26: import org.eclipse.jface.text.IRegion;
27: import org.eclipse.jface.text.Region;
28:
29: public class VdmWordFinder
30: {
31:
32:         public static IRegion findWord(IDocument document, int offset)
33:         {
34:
35:                 int start = -2;
36:                 int end = -1;
37:
38:                 try
39:                 {
40:                         int pos = offset;
41:                         char c;
42:
43:•                        while (pos >= 0)
44:                         {
45:                                 c = document.getChar(pos);
46:•                                if (!Character.isJavaIdentifierPart(c))
47:                                 {
48:                                         break;
49:                                 }
50:                                 --pos;
51:                         }
52:                         start = pos;
53:
54:                         pos = offset;
55:                         int length = document.getLength();
56:
57:•                        while (pos < length)
58:                         {
59:                                 c = document.getChar(pos);
60:•                                if (!Character.isJavaIdentifierPart(c))
61:                                 {
62:                                         break;
63:                                 }
64:                                 ++pos;
65:                         }
66:                         end = pos;
67:
68:                 } catch (BadLocationException x)
69:                 {
70:                 }
71:
72:•                if (start >= -1 && end > -1)
73:                 {
74:•                        if (start == offset && end == offset)
75:                         {
76:                                 return new Region(offset, 0);
77:•                        } else if (start == offset)
78:                         {
79:                                 return new Region(start, end - start);
80:                         } else
81:                         {
82:                                 return new Region(start + 1, end - start - 1);
83:                         }
84:                 }
85:
86:                 return null;
87:         }
88: }