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annotate src/org/tn5250j/framework/tn5250/KeyStrokenizer.java @ 131:adf9ca45675b

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author Carl Byington <carl@five-ten-sg.com>
date Thu, 19 Jun 2014 09:57:31 -0700
parents 77ac18bc1b2f
children e2a56e383bad
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1 /*
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2 * @(#)KeyStrokenizer.java
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3 * Copyright: Copyright (c) 2001
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4 *
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5 * This program is free software; you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation; either version 2, or (at your option)
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8 * any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this software; see the file COPYING. If not, write to
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17 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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18 * Boston, MA 02111-1307 USA
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19 *
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20 */
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21
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22 package org.tn5250j.framework.tn5250;
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23
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24 import android.util.Log;
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27
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28 public class KeyStrokenizer {
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29 private static final String TAG = "KeyStrokenizer";
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30 private StringBuffer keyStrokes;
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31 private StringBuffer sb;
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32 private int index;
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33 private int length;
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36
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37 public KeyStrokenizer() {
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38 sb = new StringBuffer();
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39 setKeyStrokes(null);
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40 }
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41
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42 public void setKeyStrokes(String strokes) {
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43 if (strokes != null) {
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44 keyStrokes.setLength(0);
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45 Log.d(TAG, "set " + keyStrokes);
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46 length = strokes.length();
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47 }
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48 else {
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49 keyStrokes = new StringBuffer();
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50 length = 0;
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51 }
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52
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53 keyStrokes.append(strokes);
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54 index = 0;
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55 }
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56
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57 public boolean hasMoreKeyStrokes() {
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58 return length > index;
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59 }
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60
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61 public String nextKeyStroke() {
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62 String s = "";
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63 boolean gotOne = false;
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64
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65 if (length > index) {
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66 sb.setLength(0);
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67 char c = keyStrokes.charAt(index);
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68
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69 switch (c) {
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70 case '[':
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71 sb.append(c);
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72 index++;
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73
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74 // we need to throw an error here
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75 if (index >= length) {
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76 Log.w(TAG, " mnemonic key was incomplete :1 " +
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77 "at position " + index + " len " + length);
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78 }
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79 else {
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80 c = keyStrokes.charAt(index);
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81
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82 if (c == '[')
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83 index++;
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84 else {
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85 while (!gotOne) {
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86 if (c == ']') { // did we find an ending
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87 sb.append(c);
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88 index++;
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89 gotOne = true;
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90 }
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91 else {
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92 sb.append(c);
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93 index++;
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94
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95 // we need to throw an error here because we did not
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96 // find an ending for the potential mnemonic
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97 if (index >= length) {
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98 Log.w(TAG,
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99 " mnemonic key was incomplete ending not found :2 " +
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100 "at position " + index);
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101 }
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102
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103 c = keyStrokes.charAt(index);
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104 }
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105 }
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106 }
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107 }
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108
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109 break;
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110
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111 case ']':
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112 index++;
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113
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114 if (index >= length) {
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115 Log.w(TAG,
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116 " mnemonic key was incomplete ending not found :3 " +
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117 "at position " + index);
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118 sb.append(c);
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119 index++;
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120 }
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121 else {
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122 c = keyStrokes.charAt(index);
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123
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124 if (c == ']') {
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125 sb.append(c);
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126 index++;
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127 }
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128 else {
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129 Log.w(TAG,
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130 " mnemonic key was incomplete beginning not found :4 " +
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131 "at position " + index);
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132 }
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133 }
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134
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135 break;
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137 default:
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138 sb.append(c);
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139 index++;
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140 break;
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141 }
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142
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143 if (sb != null) {
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144 s = new String(sb);
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145 }
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146 }
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147
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148 Log.d(TAG, "next " + keyStrokes);
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149 return s;
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150 }
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151
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152 public String getUnprocessedKeyStroked() {
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153 if (index >= length) {
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154 return null;
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155 }
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156
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157 return keyStrokes.substring(index);
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158 }
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Carl Byington <carl@five-ten-sg.com>
parents:
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