Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/main/CommandLine.java
src/share/classes/com/sun/tools/javac/main/CommandLine.java
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| 1 /* | |
| 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle in the LICENSE file that accompanied this code. | |
| 10 * | |
| 11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 * accompanied this code). | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License version | |
| 18 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 * | |
| 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * questions. | |
| 24 */ | |
| 25 | |
| 26 package com.sun.tools.javac.main; | |
| 27 | |
| 28 import java.io.IOException; | |
| 29 import java.io.Reader; | |
| 30 import java.io.FileReader; | |
| 31 import java.io.BufferedReader; | |
| 32 import java.io.StreamTokenizer; | |
| 33 import com.sun.tools.javac.util.ListBuffer; | |
| 34 | |
| 35 /** | |
| 36 * Various utility methods for processing Java tool command line arguments. | |
| 37 * | |
| 38 * <p><b>This is NOT part of any supported API. | |
| 39 * If you write code that depends on this, you do so at your own risk. | |
| 40 * This code and its internal interfaces are subject to change or | |
| 41 * deletion without notice.</b> | |
| 42 */ | |
| 43 public class CommandLine { | |
| 44 /** | |
| 45 * Process Win32-style command files for the specified command line | |
| 46 * arguments and return the resulting arguments. A command file argument | |
| 47 * is of the form '@file' where 'file' is the name of the file whose | |
| 48 * contents are to be parsed for additional arguments. The contents of | |
| 49 * the command file are parsed using StreamTokenizer and the original | |
| 50 * '@file' argument replaced with the resulting tokens. Recursive command | |
| 51 * files are not supported. The '@' character itself can be quoted with | |
| 52 * the sequence '@@'. | |
| 53 */ | |
| 54 public static String[] parse(String[] args) | |
| 55 throws IOException | |
| 56 { | |
| 57 ListBuffer<String> newArgs = new ListBuffer<String>(); | |
| 58 for (int i = 0; i < args.length; i++) { | |
| 59 String arg = args[i]; | |
| 60 if (arg.length() > 1 && arg.charAt(0) == '@') { | |
| 61 arg = arg.substring(1); | |
| 62 if (arg.charAt(0) == '@') { | |
| 63 newArgs.append(arg); | |
| 64 } else { | |
| 65 loadCmdFile(arg, newArgs); | |
| 66 } | |
| 67 } else { | |
| 68 newArgs.append(arg); | |
| 69 } | |
| 70 } | |
| 71 return newArgs.toList().toArray(new String[newArgs.length()]); | |
| 72 } | |
| 73 | |
| 74 private static void loadCmdFile(String name, ListBuffer<String> args) | |
| 75 throws IOException | |
| 76 { | |
| 77 Reader r = new BufferedReader(new FileReader(name)); | |
| 78 StreamTokenizer st = new StreamTokenizer(r); | |
| 79 st.resetSyntax(); | |
| 80 st.wordChars(' ', 255); | |
| 81 st.whitespaceChars(0, ' '); | |
| 82 st.commentChar('#'); | |
| 83 st.quoteChar('"'); | |
| 84 st.quoteChar('\''); | |
| 85 while (st.nextToken() != StreamTokenizer.TT_EOF) { | |
| 86 args.append(st.sval); | |
| 87 } | |
| 88 r.close(); | |
| 89 } | |
| 90 } |
