--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.corext.util;
+
+import java.util.Map;
+
+import net.sourceforge.phpdt.core.IJavaProject;
+import net.sourceforge.phpdt.core.ToolFactory;
+import net.sourceforge.phpdt.core.formatter.CodeFormatter;
+import net.sourceforge.phpdt.internal.corext.Assert;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.BadPositionCategoryException;
+import org.eclipse.jface.text.DefaultPositionUpdater;
+import org.eclipse.jface.text.Document;
+import org.eclipse.jface.text.Position;
+import org.eclipse.text.edits.DeleteEdit;
+import org.eclipse.text.edits.InsertEdit;
+import org.eclipse.text.edits.MultiTextEdit;
+import org.eclipse.text.edits.ReplaceEdit;
+import org.eclipse.text.edits.TextEdit;
+
+public class CodeFormatterUtil {
+
+ /**
+ * Creates a string that represents the given number of indents (can be spaces or tabs..)
+ */
+ public static String createIndentString(int indent) {
+ // axelcl change start
+// String str= format(CodeFormatter.K_EXPRESSION, "x", indent, null, "", (Map) null); //$NON-NLS-1$ //$NON-NLS-2$
+ String str = ToolFactory.createCodeFormatter().format("x", indent, null, "");
+ return str.substring(0, str.indexOf('x'));
+ // axelcl change end
+ }
+
+// public static int getTabWidth() {
+// Preferences preferences= JavaCore.getPlugin().getPluginPreferences();
+// return preferences.getInt(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE);
+// }
+
+ // transition code
+
+ /**
+ * Old API. Consider to use format2 (TextEdit)
+ */
+// public static String format(int kind, String string, int indentationLevel, int[] positions, String lineSeparator, Map options) {
+// return format(kind, string, 0, string.length(), indentationLevel, positions, lineSeparator, options);
+// }
+//
+// public static String format(int kind, String string, int indentationLevel, int[] positions, String lineSeparator, IJavaProject project) {
+// Map options= project != null ? project.getOptions(true) : null;
+// return format(kind, string, 0, string.length(), indentationLevel, positions, lineSeparator, options);
+// }
+
+
+ /**
+ * Old API. Consider to use format2 (TextEdit)
+ */
+// public static String format(int kind, String string, int offset, int length, int indentationLevel, int[] positions, String lineSeparator, Map options) {
+// TextEdit edit= format2(kind, string, offset, length, indentationLevel, lineSeparator, options);
+// if (edit == null) {
+// //JavaPlugin.logErrorMessage("formatter failed to format (no edit returned). Will use unformatted text instead. kind: " + kind + ", string: " + string); //$NON-NLS-1$ //$NON-NLS-2$
+// return string.substring(offset, offset + length);
+// }
+// String formatted= getOldAPICompatibleResult(string, edit, indentationLevel, positions, lineSeparator, options);
+// return formatted.substring(offset, formatted.length() - (string.length() - (offset + length)));
+// }
+
+ /**
+ * Old API. Consider to use format2 (TextEdit)
+ */
+// public static String format(ASTNode node, String string, int indentationLevel, int[] positions, String lineSeparator, Map options) {
+//
+// TextEdit edit= format2(node, string, indentationLevel, lineSeparator, options);
+// if (edit == null) {
+// //JavaPlugin.logErrorMessage("formatter failed to format (no edit returned). Will use unformatted text instead. node: " + node.getNodeType() + ", string: " + string); //$NON-NLS-1$ //$NON-NLS-2$
+// return string;
+// }
+// return getOldAPICompatibleResult(string, edit, indentationLevel, positions, lineSeparator, options);
+// }
+
+ private static String getOldAPICompatibleResult(String string, TextEdit edit, int indentationLevel, int[] positions, String lineSeparator, Map options) {
+ Position[] p= null;
+
+ if (positions != null) {
+ p= new Position[positions.length];
+ for (int i= 0; i < positions.length; i++) {
+ p[i]= new Position(positions[i], 0);
+ }
+ }
+ String res= evaluateFormatterEdit(string, edit, p);
+
+ if (positions != null) {
+ for (int i= 0; i < positions.length; i++) {
+ Position curr= p[i];
+ positions[i]= curr.getOffset();
+ }
+ }
+ return res;
+ }
+
+ /**
+ * Evaluates the edit on the given string.
+ * @throws IllegalArgumentException If the positions are not inside the string, a
+ * IllegalArgumentException is thrown.
+ */
+ public static String evaluateFormatterEdit(String string, TextEdit edit, Position[] positions) {
+ try {
+ Document doc= createDocument(string, positions);
+ edit.apply(doc, 0);
+ if (positions != null) {
+ for (int i= 0; i < positions.length; i++) {
+ Assert.isTrue(!positions[i].isDeleted, "Position got deleted"); //$NON-NLS-1$
+ }
+ }
+ return doc.get();
+ } catch (BadLocationException e) {
+ PHPeclipsePlugin.log(e); // bug in the formatter
+ Assert.isTrue(false, "Fromatter created edits with wrong positions: " + e.getMessage()); //$NON-NLS-1$
+ }
+ return null;
+ }
+
+ /**
+ * Creates edits that describe how to format the given string. Returns <code>null</code> if the code could not be formatted for the given kind.
+ * @throws IllegalArgumentException If the offset and length are not inside the string, a
+ * IllegalArgumentException is thrown.
+ */
+// public static TextEdit format2(int kind, String string, int offset, int length, int indentationLevel, String lineSeparator, Map options) {
+// if (offset < 0 || length < 0 || offset + length > string.length()) {
+// throw new IllegalArgumentException("offset or length outside of string. offset: " + offset + ", length: " + length + ", string size: " + string.length()); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
+// }
+//
+// return createCodeFormatter(options).format(kind, string, offset, length, indentationLevel, lineSeparator);
+//
+// }
+
+// public static TextEdit format2(int kind, String string, int indentationLevel, String lineSeparator, Map options) {
+// return format2(kind, string, 0, string.length(), indentationLevel, lineSeparator, options);
+// }
+
+ /**
+ * Creates edits that describe how to format the given string. Returns <code>null</code> if the code could not be formatted for the given kind.
+ * @throws IllegalArgumentException If the offset and length are not inside the string, a
+ * IllegalArgumentException is thrown.
+ */
+// public static TextEdit format2(ASTNode node, String str, int indentationLevel, String lineSeparator, Map options) {
+// int code;
+// String prefix= ""; //$NON-NLS-1$
+// String suffix= ""; //$NON-NLS-1$
+// if (node instanceof Statement) {
+// code= CodeFormatter.K_STATEMENTS;
+// if (node.getNodeType() == ASTNode.SWITCH_CASE) {
+// prefix= "switch(1) {"; //$NON-NLS-1$
+// suffix= "}"; //$NON-NLS-1$
+// code= CodeFormatter.K_STATEMENTS;
+// }
+// } else if (node instanceof Expression && node.getNodeType() != ASTNode.VARIABLE_DECLARATION_EXPRESSION) {
+// code= CodeFormatter.K_EXPRESSION;
+// } else {
+// switch (node.getNodeType()) {
+// case ASTNode.METHOD_DECLARATION:
+// case ASTNode.TYPE_DECLARATION:
+// case ASTNode.FIELD_DECLARATION:
+// case ASTNode.INITIALIZER:
+// code= CodeFormatter.K_CLASS_BODY_DECLARATIONS;
+// break;
+// case ASTNode.ARRAY_TYPE:
+// case ASTNode.PRIMITIVE_TYPE:
+// case ASTNode.SIMPLE_TYPE:
+// suffix= " x;"; //$NON-NLS-1$
+// code= CodeFormatter.K_EXPRESSION;
+// break;
+// case ASTNode.COMPILATION_UNIT:
+// code= CodeFormatter.K_COMPILATION_UNIT;
+// break;
+// case ASTNode.VARIABLE_DECLARATION_EXPRESSION:
+// case ASTNode.SINGLE_VARIABLE_DECLARATION:
+// suffix= ";"; //$NON-NLS-1$
+// code= CodeFormatter.K_STATEMENTS;
+// break;
+// case ASTNode.VARIABLE_DECLARATION_FRAGMENT:
+// prefix= "A "; //$NON-NLS-1$
+// suffix= ";"; //$NON-NLS-1$
+// code= CodeFormatter.K_STATEMENTS;
+// break;
+// case ASTNode.PACKAGE_DECLARATION:
+// case ASTNode.IMPORT_DECLARATION:
+// suffix= "\nclass A {}"; //$NON-NLS-1$
+// code= CodeFormatter.K_COMPILATION_UNIT;
+// break;
+// case ASTNode.JAVADOC:
+// suffix= "void foo();"; //$NON-NLS-1$
+// code= CodeFormatter.K_CLASS_BODY_DECLARATIONS;
+// break;
+// case ASTNode.CATCH_CLAUSE:
+// prefix= "try {}"; //$NON-NLS-1$
+// code= CodeFormatter.K_STATEMENTS;
+// break;
+// case ASTNode.ANONYMOUS_CLASS_DECLARATION:
+// prefix= "new A()"; //$NON-NLS-1$
+// suffix= ";"; //$NON-NLS-1$
+// code= CodeFormatter.K_STATEMENTS;
+// break;
+// case ASTNode.MEMBER_REF:
+// case ASTNode.METHOD_REF:
+// case ASTNode.METHOD_REF_PARAMETER:
+// case ASTNode.TAG_ELEMENT:
+// case ASTNode.TEXT_ELEMENT:
+// // not yet supported
+// return null;
+// default:
+// Assert.isTrue(false, "Node type not covered: " + node.getClass().getName()); //$NON-NLS-1$
+// return null;
+// }
+// }
+//
+// String concatStr= prefix + str + suffix;
+// TextEdit edit= format2(code, concatStr, prefix.length(), str.length(), indentationLevel, lineSeparator, options);
+// if (prefix.length() > 0) {
+// edit= shifEdit(edit, prefix.length());
+// }
+// return edit;
+// }
+
+ private static TextEdit shifEdit(TextEdit oldEdit, int diff) {
+ TextEdit newEdit;
+ if (oldEdit instanceof ReplaceEdit) {
+ ReplaceEdit edit= (ReplaceEdit) oldEdit;
+ newEdit= new ReplaceEdit(edit.getOffset() - diff, edit.getLength(), edit.getText());
+ } else if (oldEdit instanceof InsertEdit) {
+ InsertEdit edit= (InsertEdit) oldEdit;
+ newEdit= new InsertEdit(edit.getOffset() - diff, edit.getText());
+ } else if (oldEdit instanceof DeleteEdit) {
+ DeleteEdit edit= (DeleteEdit) oldEdit;
+ newEdit= new DeleteEdit(edit.getOffset() - diff, edit.getLength());
+ } else if (oldEdit instanceof MultiTextEdit) {
+ newEdit= new MultiTextEdit();
+ } else {
+ return null; // not supported
+ }
+ TextEdit[] children= oldEdit.getChildren();
+ for (int i= 0; i < children.length; i++) {
+ TextEdit shifted= shifEdit(children[i], diff);
+ if (shifted != null) {
+ newEdit.addChild(shifted);
+ }
+ }
+ return newEdit;
+ }
+
+ private static Document createDocument(String string, Position[] positions) throws IllegalArgumentException {
+ Document doc= new Document(string);
+ try {
+ if (positions != null) {
+ final String POS_CATEGORY= "myCategory"; //$NON-NLS-1$
+
+ doc.addPositionCategory(POS_CATEGORY);
+ doc.addPositionUpdater(new DefaultPositionUpdater(POS_CATEGORY) {
+ protected boolean notDeleted() {
+ if (fOffset < fPosition.offset && (fPosition.offset + fPosition.length < fOffset + fLength)) {
+ fPosition.offset= fOffset + fLength; // deleted positions: set to end of remove
+ return false;
+ }
+ return true;
+ }
+ });
+ for (int i= 0; i < positions.length; i++) {
+ try {
+ doc.addPosition(POS_CATEGORY, positions[i]);
+ } catch (BadLocationException e) {
+ throw new IllegalArgumentException("Position outside of string. offset: " + positions[i].offset + ", length: " + positions[i].length + ", string size: " + string.length()); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
+ }
+ }
+ }
+ } catch (BadPositionCategoryException cannotHappen) {
+ // can not happen: category is correctly set up
+ }
+ return doc;
+ }
+
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff