--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2003 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.ui.text.java;
+
+import net.sourceforge.phpdt.ui.PreferenceConstants;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.DefaultIndentLineAutoEditStrategy;
+import org.eclipse.jface.text.DocumentCommand;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.ITypedRegion;
+import org.eclipse.jface.text.TextUtilities;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.texteditor.ITextEditorExtension3;
+
+/**
+ * Auto indent strategy for java strings
+ */
+public class JavaStringAutoIndentStrategyDQ extends
+ DefaultIndentLineAutoEditStrategy {
+
+ private String fPartitioning;
+
+ /**
+ * The input string doesn't contain any line delimiter.
+ *
+ * @param inputString
+ * the given input string
+ * @return the displayable string.
+ */
+ private String displayString(String inputString, String indentation,
+ String delimiter) {
+
+ int length = inputString.length();
+ StringBuffer buffer = new StringBuffer(length);
+ java.util.StringTokenizer tokenizer = new java.util.StringTokenizer(
+ inputString, "\n\r", true); //$NON-NLS-1$
+ while (tokenizer.hasMoreTokens()) {
+
+ String token = tokenizer.nextToken();
+ if (token.equals("\r")) { //$NON-NLS-1$
+ buffer.append("\\r"); //$NON-NLS-1$
+ if (tokenizer.hasMoreTokens()) {
+ token = tokenizer.nextToken();
+ if (token.equals("\n")) { //$NON-NLS-1$
+ buffer.append("\\n"); //$NON-NLS-1$
+ buffer.append("\" . " + delimiter); //$NON-NLS-1$
+ buffer.append(indentation);
+ buffer.append("\""); //$NON-NLS-1$
+ continue;
+ } else {
+ buffer.append("\" . " + delimiter); //$NON-NLS-1$
+ buffer.append(indentation);
+ buffer.append("\""); //$NON-NLS-1$
+ }
+ } else {
+ continue;
+ }
+ } else if (token.equals("\n")) { //$NON-NLS-1$
+ buffer.append("\\n"); //$NON-NLS-1$
+ buffer.append("\" . " + delimiter); //$NON-NLS-1$
+ buffer.append(indentation);
+ buffer.append("\""); //$NON-NLS-1$
+ continue;
+ }
+
+ StringBuffer tokenBuffer = new StringBuffer();
+ for (int i = 0; i < token.length(); i++) {
+ char c = token.charAt(i);
+ switch (c) {
+ case '\r':
+ tokenBuffer.append("\\r"); //$NON-NLS-1$
+ break;
+ case '\n':
+ tokenBuffer.append("\\n"); //$NON-NLS-1$
+ break;
+ case '\b':
+ tokenBuffer.append("\\b"); //$NON-NLS-1$
+ break;
+ case '\t':
+ // keep tabs verbatim
+ tokenBuffer.append("\t"); //$NON-NLS-1$
+ break;
+ case '\f':
+ tokenBuffer.append("\\f"); //$NON-NLS-1$
+ break;
+ case '\"':
+ tokenBuffer.append("\\\""); //$NON-NLS-1$
+ break;
+ case '\'':
+ tokenBuffer.append("\\'"); //$NON-NLS-1$
+ break;
+ case '\\':
+ tokenBuffer.append("\\\\"); //$NON-NLS-1$
+ break;
+ default:
+ tokenBuffer.append(c);
+ }
+ }
+ buffer.append(tokenBuffer);
+ }
+ return buffer.toString();
+ }
+
+ /**
+ * Creates a new Java string auto indent strategy for the given document
+ * partitioning.
+ *
+ * @param partitioning
+ * the document partitioning
+ */
+ public JavaStringAutoIndentStrategyDQ(String partitioning) {
+ super();
+ fPartitioning = partitioning;
+ }
+
+ private boolean isLineDelimiter(IDocument document, String text) {
+ String[] delimiters = document.getLegalLineDelimiters();
+ if (delimiters != null)
+ return TextUtilities.equals(delimiters, text) > -1;
+ return false;
+ }
+
+ private String getLineIndentation(IDocument document, int offset)
+ throws BadLocationException {
+
+ // find start of line
+ int adjustedOffset = (offset == document.getLength() ? offset - 1
+ : offset);
+ IRegion line = document.getLineInformationOfOffset(adjustedOffset);
+ int start = line.getOffset();
+
+ // find white spaces
+ int end = findEndOfWhiteSpace(document, start, offset);
+
+ return document.get(start, end - start);
+ }
+
+ private String getModifiedText(String string, String indentation,
+ String delimiter) throws BadLocationException {
+ return displayString(string, indentation, delimiter);
+ }
+
+ private void javaStringIndentAfterNewLine(IDocument document,
+ DocumentCommand command) throws BadLocationException {
+
+ ITypedRegion partition = TextUtilities.getPartition(document,
+ fPartitioning, command.offset, false);
+ int offset = partition.getOffset();
+ int length = partition.getLength();
+
+ if (command.offset == offset) {
+ // we are really just before the string partition -> feet the event
+ // through the java indenter
+ // new
+ // JavaAutoIndentStrategy(fPartitioning).customizeDocumentCommand(document,
+ // command);
+ return;
+ }
+
+ if (command.offset == offset + length
+ && document.getChar(offset + length - 1) == '\"')
+ return;
+
+ String indentation = getLineIndentation(document, command.offset);
+ String delimiter = TextUtilities.getDefaultLineDelimiter(document);
+
+ IRegion line = document.getLineInformationOfOffset(offset);
+ String string = document.get(line.getOffset(), offset
+ - line.getOffset());
+ if (string.trim().length() != 0)
+ indentation += String.valueOf("\t\t"); //$NON-NLS-1$
+
+ IPreferenceStore preferenceStore = PHPeclipsePlugin.getDefault()
+ .getPreferenceStore();
+ if (isLineDelimiter(document, command.text))
+ command.text = "\" ." + command.text + indentation + "\""; //$NON-NLS-1$//$NON-NLS-2$
+ else if (command.text.length() > 1
+ && preferenceStore
+ .getBoolean(PreferenceConstants.EDITOR_ESCAPE_STRINGS_DQ))
+ command.text = getModifiedText(command.text, indentation, delimiter);
+ }
+
+ private boolean isSmartMode() {
+ IWorkbenchPage page = PHPeclipsePlugin.getActivePage();
+ if (page != null) {
+ IEditorPart part = page.getActiveEditor();
+ if (part instanceof ITextEditorExtension3) {
+ ITextEditorExtension3 extension = (ITextEditorExtension3) part;
+ return extension.getInsertMode() == ITextEditorExtension3.SMART_INSERT;
+ }
+ }
+ return false;
+ }
+
+ /*
+ * @see org.eclipse.jface.text.IAutoIndentStrategy#customizeDocumentCommand(IDocument,
+ * DocumentCommand)
+ */
+ public void customizeDocumentCommand(IDocument document,
+ DocumentCommand command) {
+ try {
+ if (command.length != 0 || command.text == null)
+ return;
+
+ IPreferenceStore preferenceStore = PHPeclipsePlugin.getDefault()
+ .getPreferenceStore();
+
+ if (preferenceStore
+ .getBoolean(PreferenceConstants.EDITOR_WRAP_STRINGS_DQ)
+ && isSmartMode())
+ javaStringIndentAfterNewLine(document, command);
+
+ } catch (BadLocationException e) {
+ }
+ }
+}
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