| /* |
| $Id$ |
| |
| Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved. |
| |
| Redistribution and use of this software and associated documentation |
| ("Software"), with or without modification, are permitted provided |
| that the following conditions are met: |
| |
| 1. Redistributions of source code must retain copyright |
| statements and notices. Redistributions must also contain a |
| copy of this document. |
| |
| 2. Redistributions in binary form must reproduce the |
| above copyright notice, this list of conditions and the |
| following disclaimer in the documentation and/or other |
| materials provided with the distribution. |
| |
| 3. The name "groovy" must not be used to endorse or promote |
| products derived from this Software without prior written |
| permission of The Codehaus. For written permission, |
| please contact info@codehaus.org. |
| |
| 4. Products derived from this Software may not be called "groovy" |
| nor may "groovy" appear in their names without prior written |
| permission of The Codehaus. "groovy" is a registered |
| trademark of The Codehaus. |
| |
| 5. Due credit should be given to The Codehaus - |
| http://groovy.codehaus.org/ |
| |
| THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS |
| ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT |
| NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| */ |
| package groovy.ui; |
| |
| import groovy.lang.GroovyShell; |
| import groovy.lang.MetaMethod; |
| import org.codehaus.groovy.sandbox.ui.Completer; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Readline completion for InteractiveShell. |
| * |
| * @author Yuri Schimke |
| * @version $Revision$ |
| */ |
| public class ShellCompleter implements Completer { |
| // The shell being handled |
| private GroovyShell shell; |
| private List completions = new ArrayList(); |
| |
| public ShellCompleter(GroovyShell shell) { |
| this.shell = shell; |
| } |
| |
| // @TODO add optimisations like check for . and rule out variables etc |
| public List findCompletions(String token) { |
| completions.clear(); |
| |
| if (token.length() == 0) { |
| return completions; |
| } |
| |
| // completions of local variable names |
| findLocalVariables(token); |
| |
| // completions of local fields. |
| |
| // completions of local methods |
| findShellMethods(token); |
| |
| // completions of methods invoked on a target |
| //findTargetCompletions(complete); |
| |
| // completion of keywords. |
| |
| return completions; |
| } |
| |
| private void findShellMethods(String complete) { |
| List methods = shell.getMetaClass().getMetaMethods(); |
| for (Iterator i = methods.iterator(); i.hasNext();) { |
| MetaMethod method = (MetaMethod) i.next(); |
| if (method.getName().startsWith(complete)) { |
| if (method.getParameterTypes().length > 0) { |
| completions.add(method.getName() + "("); |
| } |
| else { |
| completions.add(method.getName() + "()"); |
| } |
| } |
| } |
| } |
| |
| private void findLocalVariables(String complete) { |
| Set names = shell.getContext().getVariables().keySet(); |
| |
| for (Iterator i = names.iterator(); i.hasNext();) { |
| String name = (String) i.next(); |
| if (name.startsWith(complete)) { |
| completions.add(name); |
| } |
| } |
| } |
| } |