Mercurial > hg > Applications > TightVNC_orginal

annotate src/viewer_swing/java/com/glavsoft/viewer/cli/Parser.java @ 52:472a9bcacb21 draft default tip

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TightVNC 2.7.1.0
author you@cr.ie.u-ryukyu.ac.jp
date Wed, 07 Aug 2013 19:01:17 +0900
parents 4689cc86d6cb
children
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1 // Copyright (C) 2010, 2011, 2012, 2013 GlavSoft LLC.
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2 // All rights reserved.
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3 //
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4 //-------------------------------------------------------------------------
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5 // This file is part of the TightVNC software. Please visit our Web site:
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6 //
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7 // http://www.tightvnc.com/
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8 //
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9 // This program is free software; you can redistribute it and/or modify
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10 // it under the terms of the GNU General Public License as published by
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11 // the Free Software Foundation; either version 2 of the License, or
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12 // (at your option) any later version.
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13 //
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14 // This program is distributed in the hope that it will be useful,
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 // GNU General Public License for more details.
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18 //
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19 // You should have received a copy of the GNU General Public License along
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20 // with this program; if not, write to the Free Software Foundation, Inc.,
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 //-------------------------------------------------------------------------
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23 //
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24
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25 package com.glavsoft.viewer.cli;
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26
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27 import com.glavsoft.utils.Strings;
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28
0
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29 import java.util.ArrayList;
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30 import java.util.LinkedHashMap;
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31 import java.util.List;
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32 import java.util.Map;
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33
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34 /**
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35 * Command line interface parameters parser
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36 */
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37 public class Parser {
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38 private final Map<String, Option> options = new LinkedHashMap<String, Option>();
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39 private final List<String> plainOptions = new ArrayList<String>();
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40 private boolean isSetPlainOptions = false;
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41
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42 public void addOption(String opName, String defaultValue, String desc) {
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43 Option op = new Option(opName, defaultValue, desc);
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44 options.put(opName.toLowerCase(), op);
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45 }
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46
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47 public void parse(String [] args) {
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48 for (String p : args) {
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49 if (p.startsWith("-")) {
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50 int skipMinuses = p.startsWith("--") ? 2 : 1;
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51 String[] params = p.split("=", 2);
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52 Option op = options.get(params[0].toLowerCase().substring(skipMinuses));
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53 if (op != null) {
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54 op.isSet = true;
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55 if (params.length > 1 && ! Strings.isTrimmedEmpty(params[1])) {
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56 op.value = params[1];
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57 }
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58 }
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59 } else if ( ! p.startsWith("-")) {
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60 isSetPlainOptions = true;
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61 plainOptions.add(p);
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62 }
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63 }
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64 }
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65
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66 public String getValueFor(String param) {
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67 Option op = options.get(param.toLowerCase());
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68 return op != null ? op.value : null;
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69 }
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70
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71 public boolean isSet(String param) {
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72 Option op = options.get(param.toLowerCase());
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73 return op != null && op.isSet;
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74 }
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75
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76 public boolean isSetPlainOptions() {
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77 return isSetPlainOptions;
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78 }
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79
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80 public String getPlainOptionAt(int index) {
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81 return plainOptions.get(index);
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82 }
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83
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84 public int getPlainOptionsNumber() {
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85 return plainOptions.size();
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86 }
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87
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88 /**
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89 * Command line interface option
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90 */
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91 private static class Option {
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92 protected String opName, defaultValue, desc, value;
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93 protected boolean isSet = false;
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94 public Option(String opName, String defaultValue, String desc) {
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95 this.opName = opName;
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96 this.defaultValue = defaultValue;
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97 this.desc = desc;
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98 this.value = defaultValue;
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99 }
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100 }
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101
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102 public String optionsUsage() {
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103 StringBuilder sb = new StringBuilder();
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104 int maxNameLength = 0;
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105 for (Option op : options.values()) {
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106 maxNameLength = Math.max(maxNameLength, op.opName.length());
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107 }
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108 for (Option op : options.values()) {
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109 sb.append(" -").append(op.opName);
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110 for (int i=0; i<maxNameLength - op.opName.length(); ++i) {
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111 sb.append(' ');
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112 }
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113 sb.append(" : ").append(op.desc).append('\n');
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114 }
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115 return sb.toString();
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116 }
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117 }