| /* |
| * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.jshell; |
| |
| import java.util.Locale; |
| import java.util.stream.Stream; |
| import java.util.stream.StreamSupport; |
| import javax.lang.model.element.Name; |
| import static jdk.internal.jshell.remote.RemoteCodes.DOIT_METHOD_NAME; |
| import static jdk.internal.jshell.remote.RemoteCodes.PREFIX_PATTERN; |
| import static jdk.internal.jshell.remote.RemoteCodes.REPL_CLASS_PREFIX; |
| |
| /** |
| * Assorted shared utilities. |
| * @author Robert Field |
| */ |
| class Util { |
| |
| static final String REPL_DOESNOTMATTER_CLASS_NAME = REPL_CLASS_PREFIX+"DOESNOTMATTER"; |
| |
| static final Locale PARSED_LOCALE = Locale.ROOT; |
| |
| static boolean isDoIt(Name name) { |
| return isDoIt(name.toString()); |
| } |
| |
| static boolean isDoIt(String sname) { |
| return sname.equals(DOIT_METHOD_NAME); |
| } |
| |
| static String expunge(String s) { |
| StringBuilder sb = new StringBuilder(); |
| for (String comp : PREFIX_PATTERN.split(s)) { |
| sb.append(comp); |
| } |
| return sb.toString(); |
| } |
| |
| static String asLetters(int i) { |
| if (i == 0) { |
| return ""; |
| } |
| |
| char buf[] = new char[33]; |
| int charPos = 32; |
| |
| i = -i; |
| while (i <= -26) { |
| buf[charPos--] = (char) ('A'-(i % 26)); |
| i = i / 26; |
| } |
| buf[charPos] = (char) ('A'-i); |
| |
| return new String(buf, charPos, (33 - charPos)); |
| } |
| |
| |
| static String trimEnd(String s) { |
| int last = s.length() - 1; |
| int i = last; |
| while (i >= 0 && Character.isWhitespace(s.charAt(i))) { |
| --i; |
| } |
| if (i != last) { |
| return s.substring(0, i + 1); |
| } else { |
| return s; |
| } |
| } |
| |
| static <T> Stream<T> stream(Iterable<T> iterable) { |
| return StreamSupport.stream(iterable.spliterator(), false); |
| } |
| |
| static class Pair<T, U> { |
| final T first; |
| final U second; |
| |
| Pair(T first, U second) { |
| this.first = first; |
| this.second = second; |
| } |
| } |
| } |