Source Code Cross Referenced for JavacOption.java in  » 6.0-JDK-Modules-sun » javac-compiler » com » sun » tools » javac » main » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules sun » javac compiler » com.sun.tools.javac.main 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
003:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004:         *
005:         * This code is free software; you can redistribute it and/or modify it
006:         * under the terms of the GNU General Public License version 2 only, as
007:         * published by the Free Software Foundation.  Sun designates this
008:         * particular file as subject to the "Classpath" exception as provided
009:         * by Sun in the LICENSE file that accompanied this code.
010:         *
011:         * This code is distributed in the hope that it will be useful, but WITHOUT
012:         * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013:         * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
014:         * version 2 for more details (a copy is included in the LICENSE file that
015:         * accompanied this code).
016:         *
017:         * You should have received a copy of the GNU General Public License version
018:         * 2 along with this work; if not, write to the Free Software Foundation,
019:         * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020:         *
021:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022:         * CA 95054 USA or visit www.sun.com if you need additional information or
023:         * have any questions.
024:         */
025:
026:        package com.sun.tools.javac.main;
027:
028:        import com.sun.tools.javac.util.Log;
029:        import com.sun.tools.javac.util.Options;
030:        import com.sun.tools.javac.util.Version;
031:        import java.io.PrintWriter;
032:
033:        /**
034:         * TODO: describe com.sun.tools.javac.main.JavacOption
035:         *
036:         * <p><b>This is NOT part of any API supported by Sun Microsystems.
037:         * If you write code that depends on this, you do so at your own
038:         * risk.  This code and its internal interfaces are subject to change
039:         * or deletion without notice.</b></p>
040:         */
041:        @Version("@(#)JavacOption.java	1.7 07/05/05")
042:        public interface JavacOption {
043:
044:            OptionKind getKind();
045:
046:            /** Does this option take a (separate) operand? */
047:            boolean hasArg();
048:
049:            /** Does argument string match option pattern?
050:             *  @param arg        The command line argument string.
051:             */
052:            boolean matches(String arg);
053:
054:            /** Process the option (with arg). Return true if error detected.
055:             */
056:            boolean process(Options options, String option, String arg);
057:
058:            /** Process the option (without arg). Return true if error detected.
059:             */
060:            boolean process(Options options, String option);
061:
062:            OptionName getName();
063:
064:            enum OptionKind {
065:                NORMAL, EXTENDED, HIDDEN,
066:            }
067:
068:            /** This class represents an option recognized by the main program
069:             */
070:            static class Option implements  JavacOption {
071:
072:                /** Option string.
073:                 */
074:                OptionName name;
075:
076:                /** Documentation key for arguments.
077:                 */
078:                String argsNameKey;
079:
080:                /** Documentation key for description.
081:                 */
082:                String descrKey;
083:
084:                /** Suffix option (-foo=bar or -foo:bar)
085:                 */
086:                boolean hasSuffix;
087:
088:                Option(OptionName name, String argsNameKey, String descrKey) {
089:                    this .name = name;
090:                    this .argsNameKey = argsNameKey;
091:                    this .descrKey = descrKey;
092:                    char lastChar = name.optionName.charAt(name.optionName
093:                            .length() - 1);
094:                    hasSuffix = lastChar == ':' || lastChar == '=';
095:                }
096:
097:                Option(OptionName name, String descrKey) {
098:                    this (name, null, descrKey);
099:                }
100:
101:                public String toString() {
102:                    return name.optionName;
103:                }
104:
105:                /** Does this option take a (separate) operand?
106:                 */
107:                public boolean hasArg() {
108:                    return argsNameKey != null && !hasSuffix;
109:                }
110:
111:                /** Does argument string match option pattern?
112:                 *  @param arg        The command line argument string.
113:                 */
114:                public boolean matches(String arg) {
115:                    return hasSuffix ? arg.startsWith(name.optionName) : arg
116:                            .equals(name.optionName);
117:                }
118:
119:                /** Print a line of documentation describing this option, if standard.
120:                 */
121:                void help(PrintWriter out) {
122:                    String s = "  " + helpSynopsis();
123:                    out.print(s);
124:                    for (int j = s.length(); j < 29; j++)
125:                        out.print(" ");
126:                    Log.printLines(out, Main.getLocalizedString(descrKey));
127:                }
128:
129:                String helpSynopsis() {
130:                    return name
131:                            + (argsNameKey == null ? "" : ((hasSuffix ? ""
132:                                    : " ") + Main
133:                                    .getLocalizedString(argsNameKey)));
134:                }
135:
136:                /** Print a line of documentation describing this option, if non-standard.
137:                 */
138:                void xhelp(PrintWriter out) {
139:                }
140:
141:                /** Process the option (with arg). Return true if error detected.
142:                 */
143:                public boolean process(Options options, String option,
144:                        String arg) {
145:                    if (options != null)
146:                        options.put(option, arg);
147:                    return false;
148:                }
149:
150:                /** Process the option (without arg). Return true if error detected.
151:                 */
152:                public boolean process(Options options, String option) {
153:                    if (hasSuffix)
154:                        return process(options, name.optionName, option
155:                                .substring(name.optionName.length()));
156:                    else
157:                        return process(options, option, option);
158:                }
159:
160:                public OptionKind getKind() {
161:                    return OptionKind.NORMAL;
162:                }
163:
164:                public OptionName getName() {
165:                    return name;
166:                }
167:            };
168:
169:            /** A nonstandard or extended (-X) option
170:             */
171:            static class XOption extends Option {
172:                XOption(OptionName name, String argsNameKey, String descrKey) {
173:                    super (name, argsNameKey, descrKey);
174:                }
175:
176:                XOption(OptionName name, String descrKey) {
177:                    this (name, null, descrKey);
178:                }
179:
180:                void help(PrintWriter out) {
181:                }
182:
183:                void xhelp(PrintWriter out) {
184:                    super .help(out);
185:                }
186:
187:                public OptionKind getKind() {
188:                    return OptionKind.EXTENDED;
189:                }
190:            };
191:
192:            /** A hidden (implementor) option
193:             */
194:            static class HiddenOption extends Option {
195:                HiddenOption(OptionName name) {
196:                    super (name, null, null);
197:                }
198:
199:                HiddenOption(OptionName name, String argsNameKey) {
200:                    super (name, argsNameKey, null);
201:                }
202:
203:                void help(PrintWriter out) {
204:                }
205:
206:                void xhelp(PrintWriter out) {
207:                }
208:
209:                public OptionKind getKind() {
210:                    return OptionKind.HIDDEN;
211:                }
212:            };
213:
214:        }
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