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1 // Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // CStringParser. |
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15 // |
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16 |
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17 //user include |
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18 #include "stringparser.h" |
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19 #include "mslogger.h" |
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20 |
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21 CStringParser* CStringParser::NewL(TInt aBufferSize) |
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22 { |
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23 LOGTEXT(_L8("[Ltsy] Starting CStringParser::NewL()")); |
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24 |
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25 CStringParser* self = CStringParser::NewLC(aBufferSize); |
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26 CleanupStack::Pop(self); |
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27 return self; |
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28 } |
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29 |
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30 CStringParser* CStringParser::NewLC(TInt aBufferSize) |
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31 { |
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32 LOGTEXT(_L8("[Ltsy] Starting CStringParser::NewLC()")); |
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33 |
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34 CStringParser* self = new (ELeave) CStringParser; |
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35 CleanupStack::PushL(self); |
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36 self->ConstructL(aBufferSize); |
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37 return self; |
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38 } |
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39 |
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40 CStringParser::~CStringParser() |
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41 { |
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42 User::Free(iBuffer); |
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43 } |
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44 |
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45 CStringParser::CStringParser() |
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46 { |
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47 } |
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48 |
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49 void CStringParser::ConstructL(TInt aBufferSize) |
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50 { |
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51 LOGTEXT(_L8("[Ltsy] Starting CStringParser::ConstructL()")); |
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52 CreateL(aBufferSize); |
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53 } |
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54 |
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55 TPtrC8 CStringParser::Buffer() const |
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56 { |
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57 return TPtrC8(iBuffer, iLastChar-iBuffer); |
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58 } |
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59 |
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60 TPtrC8 CStringParser::CurrentLine() const |
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61 { |
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62 TInt len=iLastChar-iLineStart; |
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63 if (len>0 && iInDelimiter) |
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64 len-=1; |
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65 return TPtrC8(iLineStart, len); |
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66 } |
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67 |
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68 void CStringParser::ClearBuffer() |
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69 { |
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70 iLastChar = iBuffer; |
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71 iLineStart = iBuffer; |
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72 iInDelimiter = ETrue; |
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73 } |
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74 |
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75 // |
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76 // Remove current line, which is always at the end of the buffer |
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77 // |
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78 void CStringParser::ClearCurrentLine() |
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79 { |
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80 iLastChar = iLineStart; |
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81 iInDelimiter = ETrue; |
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82 } |
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83 |
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84 void CStringParser::CreateL(TInt aBufSize) |
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85 { |
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86 iBuffer = (TText8*)User::AllocL(aBufSize); |
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87 iBufferEnd = (iBuffer+aBufSize)-1; |
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88 ClearBuffer(); |
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89 } |
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90 |
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91 |
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92 void CStringParser::SetReadLineNotify(MCommReadLineNotifier* aNofity) |
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93 { |
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94 iReadLineNotify = aNofity; |
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95 } |
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96 |
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97 |
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98 void CStringParser::ProcessReadString(const TDesC8& aReadString) |
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99 { |
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100 LOGTEXT(_L8("[Ltsy] Starting CStringParse::ProcessReadString()")); |
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101 LOGTEXT2(_L8("[Ltsy] Read String = %S"), &aReadString); |
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102 for (TInt nBufferOffset = 0; nBufferOffset < aReadString.Length(); nBufferOffset++) |
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103 { |
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104 TText8 tChar = aReadString[nBufferOffset]; |
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105 |
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106 // we have already found a char which is a delimiter of the Line |
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107 // so would dismiss any of delimiter following this one already found |
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108 if (iInDelimiter && (tChar == '\r' || tChar == '\n')) |
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109 { |
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110 continue; |
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111 } |
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112 |
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113 // move on lastchar |
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114 *iLastChar++ = tChar; |
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115 // Diacarding characters if our buffer was overflowed |
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116 if (iLastChar >= iBufferEnd) |
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117 { |
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118 iLastChar = iBufferEnd; |
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119 } |
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120 // we anyway to find out the delimiter and notify the obser the line was found |
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121 if (tChar == '\r' || tChar == '\n') |
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122 { |
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123 iInDelimiter = ETrue; |
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124 TPtrC8 tLine(CurrentLine()); |
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125 LOGTEXT2(_L8("[Ltsy] Line Content = %S"), &tLine); |
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126 TRAPD(err, iReadLineNotify->NotifyOneLineFoundL(KErrNone, tLine)); |
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127 if (err != KErrNone) |
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128 { |
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129 ClearCurrentLine(); |
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130 } |
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131 } |
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132 else |
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133 { |
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134 if(iInDelimiter) // the last char is a delimiter |
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135 { |
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136 iInDelimiter=EFalse; |
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137 iLineStart=iLastChar-1; |
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138 if(tChar == '>') |
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139 { |
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140 TPtrC8 tLine(CurrentLine()); |
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141 TRAPD(err, iReadLineNotify->NotifyOneLineFoundL(KErrNone, tLine)); |
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142 if (err != KErrNone) |
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143 { |
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144 ClearCurrentLine(); |
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145 } |
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146 } |
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147 } |
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148 } |
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149 } |
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150 LOGTEXT(_L8("[Ltsy] End CStringParse::ProcessReadString()")); |
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151 } |
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152 //End of file |