/*******************************************************************************
* Copyright (c) 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Zend Technologies
*******************************************************************************/
package org.eclipse.php.internal.core.codeassist.contexts;
import org.eclipse.dltk.core.CompletionRequestor;
import org.eclipse.dltk.core.ISourceModule;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.php.internal.core.util.text.PHPTextSequenceUtilities;
import org.eclipse.php.internal.core.util.text.TextSequence;
/**
* This context represents state when staying in an include statement. <br/>
* Examples:
*
* <pre>
* 1. include '|
* 2. include 'ab|
* etc...
* </pre>
*/
public class IncludeStatementContext extends AbstractCompletionContext {
private int variantLength = 0;
public boolean isValid(ISourceModule sourceModule, int offset,
CompletionRequestor requestor) {
if (!super.isValid(sourceModule, offset, requestor)) {
return false;
}
TextSequence statementText = getStatementText();
return isIncludeStatement(statementText);
}
private final boolean isIncludeStatement(TextSequence statementText,
String variant) {
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=333165
if (statementText.length() < variant.length() + 1) {
return false;
}
final int length = variant.length();
if (variant.equalsIgnoreCase(statementText.subSequence(0, length)
.toString())
&& Character.isWhitespace(statementText.subSequence(length,
length + 1).charAt(0))) {
this.variantLength = variant.length();
return true;
}
return false;
}
private final boolean isIncludeStatement(TextSequence statementText) {
return isIncludeStatement(statementText, "require_once") || isIncludeStatement(statementText, "require") || isIncludeStatement(statementText, "include_once") || isIncludeStatement(statementText, "include"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}
public boolean isExclusive() {
return true;
}
public String getPrefix() throws BadLocationException {
if (hasWhitespaceBeforeCursor()) {
return ""; //$NON-NLS-1$
}
TextSequence statementText = getStatementText();
int prefixEnd = statementText.length();
final TextSequence cutTextSequence = statementText.cutTextSequence(0,
this.variantLength);
int prefixStart = PHPTextSequenceUtilities.readForwardUntilDelim(
cutTextSequence, 0, new char[] { '\'', '"' });
int i = this.variantLength + prefixStart + 1;
if (i <= prefixEnd) {
return statementText.subSequence(i, prefixEnd).toString();
}
return super.getPrefix();
}
}