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1 /* |
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2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #include "mceloglineparser.h" |
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21 |
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22 // ----------------------------------------------------------------------------- |
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23 // TMceLogLineParser::TMceLogLineParser |
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24 // ----------------------------------------------------------------------------- |
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25 // |
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26 TMceLogLineParser::TMceLogLineParser( |
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27 const TDesC8& aMessage, |
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28 TUint aMaxLineLength) |
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29 : iMaxLineLength(aMaxLineLength), |
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30 iMessage(aMessage), |
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31 iCurrentPos(0) |
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32 { |
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33 } |
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34 |
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35 // ----------------------------------------------------------------------------- |
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36 // TMceLogLineParser::End |
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37 // ----------------------------------------------------------------------------- |
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38 // |
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39 TBool TMceLogLineParser::End() |
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40 { |
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41 return (iCurrentPos >= iMessage.Length()); |
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42 } |
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43 |
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44 // ----------------------------------------------------------------------------- |
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45 // TMceLogLineParser::GetLine |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 TPtrC8 TMceLogLineParser::GetLine() |
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49 { |
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50 if (End()) |
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51 { |
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52 return TPtrC8(); |
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53 } |
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54 TPtrC8 ptr(iMessage.Mid(iCurrentPos)); |
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55 TUint lineEndOffset = 0; |
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56 TInt nextLineEndPos = FindNextLineEndPos(ptr,lineEndOffset); |
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57 TUint length; |
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58 if (nextLineEndPos == KErrNotFound) |
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59 { |
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60 if (ptr.Length() < iMaxLineLength) |
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61 { |
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62 length = ptr.Length(); |
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63 } |
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64 else |
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65 { |
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66 length = iMaxLineLength; |
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67 } |
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68 } |
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69 else |
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70 { |
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71 if (nextLineEndPos <= iMaxLineLength) |
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72 { |
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73 length = nextLineEndPos; |
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74 iCurrentPos += lineEndOffset; |
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75 } |
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76 else |
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77 { |
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78 length = iMaxLineLength; |
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79 } |
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80 } |
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81 iCurrentPos += length; |
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82 return ptr.Left(length); |
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83 } |
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84 |
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85 // ----------------------------------------------------------------------------- |
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86 // TMceLogLineParser::FindNextLineEndPos |
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87 // ----------------------------------------------------------------------------- |
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88 // |
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89 TInt TMceLogLineParser::FindNextLineEndPos( |
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90 const TDesC8& aDes, |
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91 TUint& aLineEndOffset) |
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92 { |
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93 TInt crPos = aDes.Locate ('\r'); |
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94 TInt lfPos = aDes.Locate ('\n'); |
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95 |
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96 TInt pos = KErrNotFound; |
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97 if (!(crPos == KErrNotFound)) |
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98 { |
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99 aLineEndOffset = 1; |
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100 if (!(lfPos == KErrNotFound)) |
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101 { |
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102 if (crPos < lfPos) |
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103 { |
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104 if (crPos+1 == lfPos) aLineEndOffset = 2; |
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105 pos = crPos; |
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106 } |
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107 else |
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108 { |
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109 pos = lfPos; |
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110 } |
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111 } |
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112 else |
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113 { |
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114 pos = crPos; |
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115 } |
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116 } |
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117 else |
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118 { |
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119 if (!(lfPos == KErrNotFound)) |
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120 { |
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121 aLineEndOffset = 1; |
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122 pos = lfPos; |
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123 } |
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124 } |
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125 return pos; |
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126 } |