src/share/tools/MakeDeps/ArgsParser.java

Thu, 27 May 2010 19:08:38 -0700

author
trims
date
Thu, 27 May 2010 19:08:38 -0700
changeset 1907
c18cbe5936b8
parent 435
a61af66fc99e
permissions
-rw-r--r--

6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

     1 /*
     2  * Copyright (c) 2005, 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.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 class ArgIterator {
    26     String[] args;
    27     int i;
    28     ArgIterator(String[] args) {
    29         this.args = args;
    30         this.i = 0;
    31     }
    32     String get() { return args[i]; }
    33     boolean hasMore() { return args != null && i  < args.length; }
    34     boolean next() { return ++i < args.length; }
    35 }
    37 abstract class ArgHandler {
    38     public abstract void handle(ArgIterator it);
    40 }
    42 class ArgRule {
    43     String arg;
    44     ArgHandler handler;
    45     ArgRule(String arg, ArgHandler handler) {
    46         this.arg = arg;
    47         this.handler = handler;
    48     }
    50     boolean process(ArgIterator it) {
    51         if (match(it.get(), arg)) {
    52             handler.handle(it);
    53             return true;
    54         }
    55         return false;
    56     }
    57     boolean match(String rule_pattern, String arg) {
    58         return arg.equals(rule_pattern);
    59     }
    60 }
    62 class ArgsParser {
    63     ArgsParser(String[] args,
    64                ArgRule[] rules,
    65                ArgHandler defaulter) {
    66         ArgIterator ai = new ArgIterator(args);
    67         while (ai.hasMore()) {
    68             boolean processed = false;
    69             for (int i=0; i<rules.length; i++) {
    70                 processed |= rules[i].process(ai);
    71                 if (processed) {
    72                     break;
    73                 }
    74             }
    75             if (!processed) {
    76                 if (defaulter != null) {
    77                     defaulter.handle(ai);
    78                 } else {
    79                     System.err.println("ERROR: unparsed \""+ai.get()+"\"");
    80                     ai.next();
    81                 }
    82             }
    83         }
    84     }
    85 }

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