annotate src/org/tn5250j/framework/tn5250/KeyStrokenizer.java @ 58:79aaf30947e2 tn5250

start tn5250 integration
author Carl Byington <carl@five-ten-sg.com>
date Wed, 11 Jun 2014 15:31:22 -0700
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children 77ac18bc1b2f
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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
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39 sb = new StringBuffer();
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40 setKeyStrokes(null);
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41 }
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42
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43 public void setKeyStrokes (String strokes) {
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44
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45 if (strokes != null) {
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46 keyStrokes.setLength(0);
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47 Log.d(TAG,"set "+ keyStrokes);
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48 length = strokes.length();
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49 }
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50 else {
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51
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52 keyStrokes = new StringBuffer();
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53 length = 0;
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54
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55 }
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56 keyStrokes.append(strokes);
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57 index = 0;
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58
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59 }
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60
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61 public boolean hasMoreKeyStrokes() {
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62 return length > index;
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63 }
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64
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65 public String nextKeyStroke() {
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66
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67 String s = "";
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68 boolean gotOne = false;
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69 if(length > index) {
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70 sb.setLength(0);
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71
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72 char c = keyStrokes.charAt(index);
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73 switch(c) {
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74 case '[':
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75 sb.append(c);
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76 index++;
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77
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78 // we need to throw an error here
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79 if(index >= length) {
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80 Log.w(TAG," mnemonic key was incomplete :1 " +
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81 "at position " + index + " len " + length );
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82 }
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83 else {
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84 c = keyStrokes.charAt(index);
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85
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86 if(c == '[')
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87 index++;
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88 else {
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89 while(!gotOne) {
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90
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91 if(c == ']') { // did we find an ending
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92 sb.append(c);
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93 index++;
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94 gotOne = true;
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95 }
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96 else {
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97 sb.append(c);
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98 index++;
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99 // we need to throw an error here because we did not
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100 // find an ending for the potential mnemonic
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101 if(index >= length) {
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102 Log.w(TAG,
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103 " mnemonic key was incomplete ending not found :2 " +
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104 "at position " + index);
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105 }
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106 c = keyStrokes.charAt(index);
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107 }
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108 }
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109 }
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110 }
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111 break;
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112
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113 case ']':
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114 index++;
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115 if(index >= length) {
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116 Log.w(TAG,
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117 " mnemonic key was incomplete ending not found :3 " +
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118 "at position " + index);
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119 sb.append(c);
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120 index++;
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121
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122 }
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123 else {
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124 c = keyStrokes.charAt(index);
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125 if(c == ']') {
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126 sb.append(c);
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127 index++;
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128 }
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129 else {
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130 Log.w(TAG,
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131 " mnemonic key was incomplete beginning not found :4 " +
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132 "at position " + index);
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133 }
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134 }
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135 break;
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136 default:
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137 sb.append(c);
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138 index++;
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139 break;
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140 }
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141 if(sb != null) {
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142 s = new String(sb);
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143 }
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144
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145 }
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146 Log.d(TAG,"next "+ keyStrokes);
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147
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148 return s;
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149 }
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150
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151 public String getUnprocessedKeyStroked() {
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152 if(index >= length) {
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153 return null;
e8d2a24e85c6 adding tn5250 files
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
154 }
e8d2a24e85c6 adding tn5250 files
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
155 return keyStrokes.substring(index);
e8d2a24e85c6 adding tn5250 files
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
156 }
e8d2a24e85c6 adding tn5250 files
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
157
e8d2a24e85c6 adding tn5250 files
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
158 }