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1
11 package org.eclipse.jdt.internal.debug.ui.actions;
12
13 import org.eclipse.debug.core.DebugException;
14 import org.eclipse.debug.core.model.IVariable;
15 import org.eclipse.debug.internal.ui.DebugUIPlugin;
16 import org.eclipse.debug.ui.actions.IVariableValueEditor;
17 import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds;
18 import org.eclipse.jface.dialogs.IInputValidator;
19 import org.eclipse.jface.dialogs.InputDialog;
20 import org.eclipse.jface.window.Window;
21 import org.eclipse.swt.widgets.Composite;
22 import org.eclipse.swt.widgets.Control;
23 import org.eclipse.swt.widgets.Shell;
24 import org.eclipse.ui.IWorkbench;
25 import org.eclipse.ui.PlatformUI;
26
27 import com.ibm.icu.text.MessageFormat;
28
29
32 public class JavaPrimitiveValueEditor implements IVariableValueEditor {
33
34
37 private String  fSignature= null;
38
39
43 public JavaPrimitiveValueEditor(String signature) {
44 fSignature= signature;
45 }
46
47
50 public boolean editVariable(IVariable variable, Shell shell) {
51 try {
52 String name= variable.getName();
53 String title= ActionMessages.JavaPrimitiveValueEditor_0;
54 String message= MessageFormat.format(ActionMessages.JavaPrimitiveValueEditor_1, new String [] {name});
55 String initialValue= variable.getValue().getValueString();
56 PrimitiveValidator validator= new PrimitiveValidator();
57 InputDialog dialog= new InputDialog(shell, title, message, initialValue, validator){
58 protected Control createDialogArea(Composite parent) {
59 IWorkbench workbench = PlatformUI.getWorkbench();
60 workbench.getHelpSystem().setHelp(
61 parent,
62 IJavaDebugHelpContextIds.DEFAULT_INPUT_DIALOG);
63 return super.createDialogArea(parent);
64 }
65 };
66 if (dialog.open() == Window.OK) {
67 String stringValue = dialog.getValue();
68 if (stringValue.length() > 1 && stringValue.charAt(0) == '\\') {
69 int i= validator.getEscapeValue(stringValue);
71 if (i != Integer.MAX_VALUE) {
72 stringValue= new String (new char[] { (char) i });
73 }
74 }
75 variable.setValue(stringValue);
76 }
77 } catch (DebugException e) {
78 DebugUIPlugin.errorDialog(shell, ActionMessages.JavaPrimitiveValueEditor_2, ActionMessages.JavaPrimitiveValueEditor_3, e); }
80 return true;
81 }
82
83
86 public boolean saveVariable(IVariable variable, String expression, Shell shell) {
87 return false;
88 }
89
90
93 protected class PrimitiveValidator implements IInputValidator {
94
97 public String isValid(String newText) {
98 String type= null;
99 switch (fSignature.charAt(0)) {
100 case 'B':
101 try {
102 Byte.parseByte(newText);
103 } catch (NumberFormatException e) {
104 type= "byte"; }
106 break;
107 case 'C':
108 if (newText.length() > 1 && newText.charAt(0) == '\\') {
109 if (isSpecialCharacter(newText) ||
111 isOctalEscape(newText) ||
112 isUnicode(newText)) {
113 break;
114 }
115 }
116 if (newText.length() != 1) {
117 type="char"; }
119 break;
120 case 'D':
121 try {
122 Double.parseDouble(newText);
123 } catch (NumberFormatException e) {
124 type="double"; }
126 break;
127 case 'F':
128 try {
129 Float.parseFloat(newText);
130 } catch (NumberFormatException e) {
131 type="float"; }
133 break;
134 case 'I':
135 try {
136 Integer.parseInt(newText);
137 } catch (NumberFormatException e) {
138 type="int"; }
140 break;
141 case 'J':
142 try {
143 Long.parseLong(newText);
144 } catch (NumberFormatException e) {
145 type="long"; }
147 break;
148 case 'S':
149 try {
150 Short.parseShort(newText);
151 } catch (NumberFormatException e) {
152 type="short"; }
154 break;
155 case 'Z':
156 if (!("true".equals(newText) || "false".equals(newText))) { type="boolean"; }
159 break;
160 }
161 if (type != null) {
162 return MessageFormat.format(ActionMessages.JavaPrimitiveValueEditor_4, new String [] { type });
163 }
164 return null;
165 }
166
167 private boolean isUnicode(String newText) {
168 if (newText.length() == 6) {
169 if (newText.charAt(1) == 'u') {
170 char[] chars = newText.toCharArray();
171 for (int i = 2; i < chars.length; i++) {
172 if (!isHexDigit(chars[i])) {
173 return false;
174 }
175 }
176 return true;
177 }
178 }
179 return false;
180 }
181
182 private boolean isOctalEscape(String newText) {
183 char[] chars= newText.toCharArray();
184 if (chars.length < 4) {
185 for (int i = 1; i < chars.length; i++) {
186 if (!isOctalDigit(chars[i])) {
187 return false;
188 }
189 }
190 return true;
191 } else if (chars.length == 4) {
192 char ch= chars[1];
193 if (ch < '0' || ch > '3') {
194 return false;
195 }
196 for (int i = 2; i < chars.length; i++) {
197 if (!isOctalDigit(chars[i])) {
198 return false;
199 }
200 }
201 return true;
202 }
203 return false;
204 }
205
206 private boolean isSpecialCharacter(String newText) {
207 char ch= newText.charAt(1);
208 return newText.length() == 2 &&
209 (ch == 'b' ||
210 ch == 't' ||
211 ch == 'n' ||
212 ch == 'f' ||
213 ch == 'r' ||
214 ch == '"' ||
215 ch == '\'' ||
216 ch == '\\');
217 }
218
219 private boolean isOctalDigit(char ch) {
220 return Character.digit(ch, 8) != -1;
221 }
222
223 private boolean isHexDigit(char ch) {
224 return Character.digit(ch, 16) != -1;
225 }
226
227
233 protected int getEscapeValue(String string) {
234 int i= Integer.MAX_VALUE;
235 if (isOctalEscape(string)) {
236 i= Integer.parseInt(string.substring(1), 8);
237 } else if (isUnicode(string)) {
238 i= Integer.parseInt(string.substring(2), 16);
239 }
240 return i;
241 }
242 }
243
244 }
245 |
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