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1 // pod_formatter.cpp |
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2 // |
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3 // Copyright (c) 2009 - 2010 Accenture. 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 the "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 // Accenture - Initial contribution |
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11 // |
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12 |
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13 #include "pod_formatter.h" |
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14 |
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15 const TInt KGap = 2; |
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16 |
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17 _LIT(KPartialCommandStart, "\r\n="); |
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18 _LIT(KCommandStart, "\r\n\r\n="); |
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19 _LIT(KBlankLine, "\r\n\r\n"); |
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20 _LIT(KNewLine, "\r\n"); |
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21 |
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22 using namespace IoUtils; |
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23 |
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24 |
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25 TPodFormatter::TPodFormatter(CTextFormatter& aFormatter) |
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26 : iFormatter(aFormatter) |
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27 { |
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28 } |
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29 |
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30 void TPodFormatter::FormatL(const TDesC& aPod) |
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31 { |
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32 iPodLex = aPod; |
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33 while (!iPodLex.Eos()) |
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34 { |
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35 TPtrC command(NextCommand()); |
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36 if (command == _L("pod")) |
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37 { |
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38 SkipToNextBlankLine(); |
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39 } |
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40 else if ((command == _L("head1")) || (command == _L("head2"))) |
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41 { |
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42 iPodLex.SkipSpaceAndMark(); |
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43 SkipToLineEnd(); |
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44 iFormatter.SetAttributesL(ConsoleAttributes::EBold | ConsoleAttributes::EUnderscore); |
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45 iFormatter.WrapL(0, iPodLex.MarkedToken()); |
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46 iFormatter.SetAttributesL(ConsoleAttributes::ENone); |
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47 iFormatter.AppendL(KBlankLine); |
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48 } |
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49 else if (command == _L("cut")) |
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50 { |
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51 SkipToNextBlankLine(); |
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52 break; |
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53 } |
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54 else if (command == _L("begin")) |
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55 { |
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56 TPtrC nextCommand; |
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57 do |
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58 { |
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59 nextCommand.Set(NextCommand()); |
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60 } |
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61 while ((nextCommand.Length() > 0) && (nextCommand != _L("end"))); |
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62 |
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63 SkipToNextBlankLine(); |
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64 } |
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65 else if (command == _L("for")) |
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66 { |
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67 SkipToNextBlankLine(); |
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68 } |
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69 else if (command == _L("over")) |
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70 { |
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71 iPodLex.SkipSpace(); |
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72 TUint indent; |
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73 User::LeaveIfError(iPodLex.Val(indent)); |
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74 OverL(indent); |
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75 } |
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76 |
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77 FormatToNextCommandL(); |
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78 } |
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79 } |
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80 |
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81 void TPodFormatter::OverL(TInt aIndent) |
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82 { |
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83 CTextBuffer* buffer = CTextBuffer::NewLC(0x100); |
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84 |
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85 while (!iPodLex.Eos()) |
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86 { |
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87 FormatToNextCommandL(aIndent); |
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88 |
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89 TPtrC command(NextCommand()); |
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90 if (command == _L("item")) |
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91 { |
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92 iPodLex.SkipSpaceAndMark(); |
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93 SkipToLineEnd(); |
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94 buffer->AppendL(iPodLex.MarkedToken()); |
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95 iPodLex.SkipSpace(); |
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96 //buffer->AppendL('\t'); |
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97 //buffer->AppendL(TextToNextCommand()); |
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98 // Need to split the text up putting a tab in front of every paragraph of text, in case the item description is multi-paragraph. |
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99 // If we don't, the next paragraph will end up in column one which will break the column formatter. |
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100 // If there's a neater way of doing this, someone feel free! -TomS |
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101 TPtrC text(TextToNextCommand()); |
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102 while(text.Length()) |
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103 { |
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104 TInt nextNewLine = text.Find(KNewLine); |
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105 if (nextNewLine == KErrNotFound) nextNewLine = text.Length(); |
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106 TPtrC line(text.Left(nextNewLine+KNewLine().Length())); |
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107 buffer->AppendL('\t'); |
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108 buffer->AppendL(line); |
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109 text.Set(text.Mid(line.Length())); |
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110 } |
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111 buffer->AppendL(KNewLine); |
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112 } |
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113 else if (command == _L("back")) |
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114 { |
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115 break; |
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116 } |
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117 else if (command == _L("over")) |
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118 { |
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119 if (buffer->Descriptor().Length() > 0) |
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120 { |
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121 iFormatter.TabulateL(aIndent, KGap, buffer->Descriptor(), EWrapLastColumn); |
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122 iFormatter.AppendL(KNewLine); |
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123 buffer->Zero(); |
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124 } |
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125 iPodLex.SkipSpace(); |
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126 TUint indent; |
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127 User::LeaveIfError(iPodLex.Val(indent)); |
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128 OverL(indent + aIndent); |
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129 } |
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130 } |
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131 |
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132 if (buffer->Descriptor().Length() > 0) |
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133 { |
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134 iFormatter.TabulateL(aIndent, KGap, buffer->Descriptor(), EWrapLastColumn); |
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135 iFormatter.AppendL(KNewLine); |
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136 } |
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137 |
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138 CleanupStack::PopAndDestroy(buffer); |
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139 } |
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140 |
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141 void TPodFormatter::FormatToNextCommandL(TInt aIndent) |
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142 { |
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143 FOREVER |
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144 { |
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145 TPtrC paragraph(NextParagraph()); |
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146 if (paragraph.Length() > 0) |
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147 { |
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148 if (TChar(paragraph[0]).IsSpace()) |
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149 { |
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150 iFormatter.AppendL(paragraph); |
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151 } |
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152 else |
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153 { |
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154 iFormatter.WrapL(aIndent, paragraph); |
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155 } |
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156 iFormatter.AppendL(KNewLine); |
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157 } |
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158 else |
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159 { |
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160 break; |
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161 } |
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162 } |
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163 } |
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164 |
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165 TPtrC TPodFormatter::NextCommand() |
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166 { |
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167 TPtrC command; |
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168 if (SkipToNextCommand() == KErrNone) |
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169 { |
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170 iPodLex.Mark(); |
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171 iPodLex.SkipCharacters(); |
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172 command.Set(iPodLex.MarkedToken()); |
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173 } |
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174 return command; |
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175 } |
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176 |
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177 TPtrC TPodFormatter::NextParagraph() |
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178 { |
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179 // Consume leading new line characters. |
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180 while (iPodLex.Remainder().Find(KNewLine) == 0) |
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181 { |
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182 if (AtCommandStart()) |
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183 { |
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184 return TPtrC(); |
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185 } |
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186 iPodLex.Inc(KNewLine().Length()); |
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187 } |
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188 |
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189 iPodLex.Mark(); |
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190 |
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191 if (iPodLex.Peek().IsSpace()) |
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192 { |
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193 // This line has leading white space - treat everything up to the next blank line as a single paragraph. |
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194 if (SkipToNextBlankLine() != KErrNone) |
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195 { |
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196 SkipToLineEnd(); |
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197 } |
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198 } |
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199 else if (SkipToNextLine() != KErrNone) |
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200 { |
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201 SkipToLineEnd(); |
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202 } |
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203 |
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204 return iPodLex.MarkedToken(); |
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205 } |
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206 |
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207 TPtrC TPodFormatter::TextToNextCommand() |
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208 { |
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209 TInt initialOffset = iPodLex.Offset(); |
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210 iPodLex.Mark(); |
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211 |
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212 if (SkipToNextCommand() == KErrNone) |
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213 { |
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214 if (iPodLex.Offset() >= KCommandStart().Length()) |
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215 { |
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216 iPodLex.Inc(-(KCommandStart().Length())); |
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217 } |
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218 else |
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219 { |
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220 iPodLex.Inc(-(iPodLex.Remainder().Length())); |
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221 } |
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222 } |
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223 else |
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224 { |
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225 iPodLex.Inc(iPodLex.Remainder().Length()); |
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226 } |
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227 |
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228 if (initialOffset < iPodLex.Offset()) |
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229 { |
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230 return iPodLex.MarkedToken(); |
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231 } |
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232 else |
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233 { |
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234 return TPtrC(NULL, 0); |
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235 } |
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236 } |
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237 |
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238 void TPodFormatter::SkipToLineEnd() |
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239 { |
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240 if (SkipTo(KNewLine) != KErrNone) |
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241 { |
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242 iPodLex.Inc(iPodLex.Remainder().Length()); |
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243 } |
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244 } |
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245 |
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246 TInt TPodFormatter::SkipToNextLine() |
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247 { |
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248 TInt ret = SkipTo(KNewLine); |
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249 if (ret == KErrNone) |
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250 { |
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251 iPodLex.Inc(KNewLine().Length()); |
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252 } |
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253 return ret; |
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254 } |
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255 |
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256 TInt TPodFormatter::SkipToNextCommand() |
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257 { |
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258 if (iPodLex.Remainder().Find(KPartialCommandStart) == 0) |
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259 { |
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260 if (iPodLex.Offset() == 0) |
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261 { |
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262 iPodLex.Inc(KPartialCommandStart().Length()); |
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263 return KErrNone; |
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264 } |
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265 else |
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266 { |
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267 iPodLex.Inc(-2); |
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268 if (iPodLex.Remainder().Find(KCommandStart) == 0) |
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269 { |
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270 iPodLex.Inc(KCommandStart().Length()); |
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271 return KErrNone; |
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272 } |
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273 else |
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274 { |
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275 iPodLex.Inc(2); |
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276 } |
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277 } |
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278 } |
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279 |
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280 TInt ret = SkipTo(KCommandStart); |
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281 if (ret == KErrNone) |
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282 { |
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283 iPodLex.Inc(KCommandStart().Length()); |
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284 } |
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285 return ret; |
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286 } |
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287 |
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288 TInt TPodFormatter::SkipToNextBlankLine() |
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289 { |
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290 TInt ret = SkipTo(KBlankLine); |
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291 if (ret == KErrNone) |
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292 { |
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293 iPodLex.Inc(2); |
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294 } |
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295 return ret; |
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296 } |
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297 |
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298 TInt TPodFormatter::SkipTo(const TDesC& aDes) |
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299 { |
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300 TInt ret = iPodLex.Remainder().Find(aDes); |
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301 if (ret >= 0) |
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302 { |
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303 iPodLex.Inc(ret); |
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304 return KErrNone; |
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305 } |
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306 return KErrNotFound; |
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307 } |
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308 |
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309 TBool TPodFormatter::AtCommandStart() |
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310 { |
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311 return ((iPodLex.Remainder().Find(KCommandStart) == 0) || (iPodLex.Remainder().Find(KPartialCommandStart) == 0)); |
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312 } |
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313 |