/**
*
*/
package org.eclipse.dltk.compiler.task;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import org.eclipse.core.runtime.Preferences;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
public abstract class TaskTagUtils {
private static final String TAG_SEPARATOR = ","; //$NON-NLS-1$
private static final String PRIORITY_SEPARATOR = ";"; //$NON-NLS-1$
public static List<TodoTask> decodeTaskTags(String tags) {
final String[] tagPairs = getTokens(tags, TAG_SEPARATOR);
final List<TodoTask> elements = new ArrayList<TodoTask>();
for (int i = 0; i < tagPairs.length; ++i) {
final String[] values = getTokens(tagPairs[i], PRIORITY_SEPARATOR);
final TodoTask task = new TodoTask();
task.name = values[0];
if (values.length == 2) {
task.priority = values[1];
} else {
task.priority = TodoTask.PRIORITY_NORMAL;
}
elements.add(task);
}
return elements;
}
public static String encodeTaskTags(List<TodoTask> elements) {
final StringBuffer sb = new StringBuffer();
for (int i = 0; i < elements.size(); ++i) {
final TodoTask task = elements.get(i);
if (i > 0) {
sb.append(TAG_SEPARATOR);
}
sb.append(task.name);
sb.append(PRIORITY_SEPARATOR);
sb.append(task.priority);
}
final String string = sb.toString();
return string;
}
public static List<TodoTask> getDefaultTags() {
final List<TodoTask> defaultTags = new ArrayList<TodoTask>();
defaultTags.add(new TodoTask("FIXME", TodoTask.PRIORITY_HIGH)); //$NON-NLS-1$
defaultTags.add(new TodoTask("TODO", TodoTask.PRIORITY_NORMAL)); //$NON-NLS-1$
defaultTags.add(new TodoTask("XXX", TodoTask.PRIORITY_NORMAL)); //$NON-NLS-1$
return defaultTags;
}
@Deprecated
public static void initializeDefaultValues(Preferences store) {
initializeDefaultValues(store, null);
}
@Deprecated
public static void initializeDefaultValues(Preferences store,
List<TodoTask> taskTags) {
store.setDefault(ITodoTaskPreferences.ENABLED, true);
store.setDefault(ITodoTaskPreferences.CASE_SENSITIVE, true);
store.setDefault(ITodoTaskPreferences.TAGS,
encodeTaskTags(taskTags != null ? taskTags : getDefaultTags()));
}
public static void initializeDefaultValues(IEclipsePreferences prefs) {
prefs.putBoolean(ITodoTaskPreferences.ENABLED, true);
prefs.putBoolean(ITodoTaskPreferences.CASE_SENSITIVE, true);
prefs.put(ITodoTaskPreferences.TAGS, encodeTaskTags(getDefaultTags()));
}
public static boolean isValidName(String newText) {
return newText.indexOf(TAG_SEPARATOR.charAt(0)) < 0
&& newText.indexOf(PRIORITY_SEPARATOR.charAt(0)) < 0;
}
private static String[] getTokens(String text, String separator) {
final StringTokenizer tok = new StringTokenizer(text, separator);
final int nTokens = tok.countTokens();
final String[] res = new String[nTokens];
for (int i = 0; i < res.length; i++) {
res[i] = tok.nextToken().trim();
}
return res;
}
}