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Groovy: A powerful, dynamic language for the JVM
/*
* Copyright 2003-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.tools.shell.completion
import org.codehaus.groovy.antlr.GroovySourceToken
import org.codehaus.groovy.runtime.MethodClosure
import org.codehaus.groovy.tools.shell.Groovysh
/**
* Completor completing variable and method names from known variables in the shell
*/
public class VariableSyntaxCompletor implements IdentifierCompletor {
Groovysh shell
VariableSyntaxCompletor(Groovysh shell) {
this.shell = shell
}
@Override
public boolean complete(final List tokens, List candidates) {
String prefix = tokens.last().getText()
Map vars = shell.interp.context.variables
boolean foundMatch = false
for (String varName in vars.keySet()) {
if (acceptName(varName, prefix)) {
if (vars.get(varName) instanceof MethodClosure) {
if (((MethodClosure)vars.get(varName)).getMaximumNumberOfParameters() > 0) {
varName += "("
} else {
varName += "()"
}
}
foundMatch = true
candidates << varName
}
}
return foundMatch
}
private static boolean acceptName(String name, String prefix) {
return (!prefix || name.startsWith(prefix)) &&
(!(name.contains('$')) && !name.startsWith("_"));
}
}