1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Globalization;
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4 | using System.Linq;
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5 | using System.Text;
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6 | using System.Text.RegularExpressions;
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7 | using System.IO;
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8 | using System.Drawing;
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9 | using System.Threading.Tasks;
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10 |
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11 | namespace Common
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12 | {
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13 | public class MatlabModule
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14 | {
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15 | public MatlabBlock root;
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16 |
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17 | public MatlabModule()
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18 | {
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19 | root = new MatlabBlock();
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20 | }
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21 |
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22 | public void LoadFromFile(string fileName)
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23 | {
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24 | Parser parser = new Parser();
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25 | parser.content = File.ReadAllText(fileName);
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26 | string itemName = root.ReadName(parser);
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27 | if (itemName == "") return;
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28 | MatlabBlock.Parse(parser, out root);
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29 | if (root != null) root.name = itemName;
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30 | }
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31 |
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32 | public void SaveToFile(string fileName)
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33 | {
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34 | StringBuilder output = new StringBuilder();
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35 | root.Compose(output);
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36 | File.WriteAllText(fileName, output.ToString());
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37 | }
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38 | }
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39 |
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40 | public class MatlabItem
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41 | {
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42 | public string name;
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43 | public MatlabItem parent;
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44 |
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45 | public virtual string GetAsString(int indent = 0)
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46 | {
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47 | return string.Concat(Enumerable.Repeat(" ", indent)) + "Name: " + name + Environment.NewLine;
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48 | }
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49 |
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50 | public virtual List<MatlabItem> Find(string text, bool exact = true)
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51 | {
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52 | return new List<MatlabItem>();
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53 | }
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54 |
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55 | public virtual void Compose(StringBuilder output, int ident = 0)
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56 | {
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57 | }
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58 |
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59 | public string ReadName(Parser parser)
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60 | {
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61 | string result = parser.ReadNext();
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62 | while (parser.CheckNext("."))
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63 | {
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64 | result += "." + parser.ReadNext();
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65 | }
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66 | return result;
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67 | }
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68 | }
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69 |
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70 | class MatlabString : MatlabItem
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71 | {
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72 | public string value;
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73 | public bool quoted;
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74 |
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75 | public MatlabString()
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76 | {
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77 | value = "";
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78 | quoted = false;
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79 | }
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80 |
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81 | public override string GetAsString(int indent = 0)
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82 | {
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83 | return base.GetAsString(indent) +
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84 | string.Concat(Enumerable.Repeat(" ", indent)) + "Value: " + value + Environment.NewLine;
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85 | }
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86 |
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87 | public override List<MatlabItem> Find(string text, bool exact = true)
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88 | {
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89 | List<MatlabItem> result = new List<MatlabItem>();
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90 | if (((text == value) && exact) || (value.Contains(text) && !exact)) result.Add(this);
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91 | return result;
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92 | }
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93 |
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94 | public static bool Parse(Parser parser, out MatlabString itemString)
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95 | {
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96 | itemString = new MatlabString();
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97 | itemString.value = parser.ReadNext();
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98 | itemString.quoted = parser.elementType == ElementType.String;
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99 | while (true)
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100 | {
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101 | if (parser.CheckNextType(ElementType.String))
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102 | {
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103 | itemString.value += parser.ReadNext();
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104 | }
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105 | else
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106 | {
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107 | break;
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108 | }
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109 | }
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110 | if (itemString.quoted) itemString.value = itemString.value.Unescape();
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111 | return true;
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112 | }
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113 |
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114 | public override void Compose(StringBuilder output, int indent = 0)
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115 | {
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116 | output.Append(string.Concat(Enumerable.Repeat(" ", indent)) + name + " ");
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117 | if (quoted)
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118 | {
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119 | var parts = value.SplitInParts(43);
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120 | int i = 0;
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121 | foreach (var part in parts)
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122 | {
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123 | output.Append("\"" + part.Escape() + "\"");
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124 | if (i < parts.Count() - 1) output.Append(Environment.NewLine);
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125 | }
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126 | }
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127 | else output.Append(value);
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128 | output.Append(Environment.NewLine);
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129 | }
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130 | }
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131 |
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132 | class MatlabList : MatlabItem
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133 | {
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134 | public List<List<int>> items;
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135 |
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136 | public MatlabList()
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137 | {
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138 | items = new List<List<int>>();
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139 | items.Add(new List<int>());
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140 | }
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141 |
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142 | public static bool Parse(Parser parser, out MatlabList list)
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143 | {
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144 | if (!parser.CheckNext("["))
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145 | {
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146 | list = null;
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147 | return false;
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148 | }
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149 | list = new MatlabList();
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150 | parser.Expect("[");
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151 | int output;
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152 | if (!parser.CheckNext("]"))
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153 | {
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154 | if (int.TryParse(parser.ReadNext(), out output))
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155 | list.items.Last().Add(output);
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156 |
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157 | while (parser.CheckNext(",") || parser.CheckNext(";"))
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158 | {
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159 | if (parser.CheckNext(";"))
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160 | {
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161 | parser.Expect(";");
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162 | list.items.Add(new List<int>());
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163 | }
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164 | else
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165 | {
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166 | parser.Expect(",");
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167 | }
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168 | if (int.TryParse(parser.ReadNext(), out output))
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169 | list.items.Last().Add(output);
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170 | }
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171 | }
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172 | parser.Expect("]");
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173 | return true;
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174 | }
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175 |
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176 | public override void Compose(StringBuilder output, int indent = 0)
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177 | {
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178 | output.Append(string.Concat(Enumerable.Repeat(" ", indent)) + name + " [");
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179 | int i = 0;
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180 | foreach (var item in items)
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181 | {
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182 | if (i > 0) output.Append("; ");
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183 | int j = 0;
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184 | foreach (var item2 in item)
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185 | {
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186 | if (j > 0) output.Append(", ");
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187 | output.Append(item2);
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188 | j++;
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189 | }
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190 | i++;
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191 | }
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192 | output.Append("]" + Environment.NewLine);
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193 | }
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194 |
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195 | public override string GetAsString(int indent = 0)
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196 | {
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197 | return base.GetAsString(indent) +
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198 | string.Concat(Enumerable.Repeat(" ", indent)) + "Items: " + string.Join(", ", items) + Environment.NewLine;
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199 | }
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200 | }
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201 |
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202 | public class MatlabBlock : MatlabItem
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203 | {
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204 | public List<MatlabItem> items;
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205 |
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206 | public MatlabBlock()
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207 | {
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208 | items = new List<MatlabItem>();
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209 | }
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210 |
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211 | public static bool Parse(Parser parser, out MatlabBlock block)
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212 | {
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213 | if (!parser.CheckNext("{"))
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214 | {
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215 | block = null;
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216 | return false;
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217 | }
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218 | block = new MatlabBlock();
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219 | parser.Expect("{");
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220 | MatlabBlock itemBlock;
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221 | MatlabList itemList;
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222 | MatlabString itemString;
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223 | while (!parser.CheckNext("}"))
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224 | {
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225 | string itemName = block.ReadName(parser);
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226 | if (MatlabBlock.Parse(parser, out itemBlock))
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227 | {
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228 | itemBlock.name = itemName;
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229 | itemBlock.parent = block;
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230 | block.items.Add(itemBlock);
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231 | }
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232 | else
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233 | if (MatlabList.Parse(parser, out itemList))
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234 | {
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235 | itemList.name = itemName;
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236 | itemList.parent = block;
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237 | block.items.Add(itemList);
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238 | }
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239 | else
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240 | if (MatlabString.Parse(parser, out itemString))
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241 | {
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242 | itemString.name = itemName;
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243 | itemString.parent = block;
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244 | block.items.Add(itemString);
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245 | }
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246 | else
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247 | throw new Exception("Unsupported block item type.");
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248 | }
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249 | parser.Expect("}");
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250 | return true;
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251 | }
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252 |
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253 | public override void Compose(StringBuilder output, int indent = 0)
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254 | {
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255 | output.Append(string.Concat(Enumerable.Repeat(" ", indent)) + name + " {" + Environment.NewLine);
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256 | foreach (var item in items)
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257 | {
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258 | item.Compose(output, indent + 1);
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259 | }
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260 | output.Append(string.Concat(Enumerable.Repeat(" ", indent)) + "}" + Environment.NewLine);
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261 | }
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262 | }
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263 |
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264 | public enum ElementType { None, String, Ident, Number, SpecialChar, Comment };
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265 |
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266 | public struct ParserPosition
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267 | {
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268 | public int index;
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269 | public Point position;
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270 | }
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271 |
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272 | public struct ParserToken
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273 | {
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274 | public string text;
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275 | public ElementType type;
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276 | }
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277 |
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278 | public class ParserState
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279 | {
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280 | public ParserPosition currentPosition;
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281 | public ParserPosition externalPosition;
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282 | public ParserToken lastToken;
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283 | }
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284 |
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285 | public class Parser
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286 | {
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287 | public string content;
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288 | ParserPosition currentPosition;
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289 | ParserPosition previousPosition;
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290 | ParserPosition externalPosition;
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291 | ParserToken lastToken;
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292 | public ElementType elementType;
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293 |
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294 | public Parser()
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295 | {
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296 | lastToken.type = ElementType.None;
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297 | Clear();
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298 | }
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299 |
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300 | public char ReadChar()
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301 | {
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302 | previousPosition = currentPosition;
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303 | char result = content[currentPosition.index];
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304 | currentPosition.index++;
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305 | if (result == '\n')
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306 | {
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307 | currentPosition.position.Y++;
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308 | currentPosition.position.X = 1;
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309 | }
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310 | else currentPosition.position.X++;
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311 | return result;
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312 | }
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313 |
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314 | public void Clear()
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315 | {
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316 | currentPosition.index = 0;
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317 | currentPosition.position = new Point(1, 1);
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318 | previousPosition = currentPosition;
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319 | externalPosition = currentPosition;
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320 | }
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321 |
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322 | public bool IsSpecialChar(char character)
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323 | {
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324 | return (character == '{') || (character == '}') || (character == '[') || (character == ']') ||
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325 | (character == '\r') || (character == ',') || (character == '.') || (character == '$') || (character == ';');
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326 | }
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327 |
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328 | public ParserToken ReadNextToken()
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329 | {
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330 | string resultString = "";
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331 | elementType = ElementType.None;
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332 | bool finished = false;
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333 | while ((currentPosition.index < content.Length) && !finished)
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334 | {
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335 | char character = ReadChar();
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336 | if (elementType == ElementType.String)
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337 | {
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338 | if (character == '\"')
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339 | {
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340 | finished = true;
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341 | break;
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342 | }
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343 | else
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344 | {
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345 | if (character == '\\')
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346 | {
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347 | character = ReadChar();
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348 | if (character == 'n') resultString += '\n';
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349 | else if (character == 'r') resultString += '\r';
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350 | else if (character == 't') resultString += '\t';
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351 | else resultString += character;
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352 | }
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353 | else resultString += character;
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354 | }
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355 | }
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356 | else
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357 | if (elementType == ElementType.Ident)
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358 | {
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359 | if (char.IsLetterOrDigit(character) || (character == '_'))
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360 | {
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361 | resultString += character;
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362 | }
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363 | else
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364 | {
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365 | currentPosition = previousPosition;
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366 | finished = true;
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367 | break;
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368 | }
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369 | }
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370 | else
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371 | if (elementType == ElementType.Number)
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372 | {
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373 | if (char.IsNumber(character) || (character == '.'))
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374 | {
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375 | resultString += character;
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376 | }
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377 | else
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378 | {
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379 | currentPosition = previousPosition;
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380 | finished = true;
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381 | break;
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382 | }
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383 | }
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384 | else
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385 | if (elementType == ElementType.Comment)
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386 | {
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387 | if ((character == '\n') || (character == '\r'))
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388 | {
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389 | elementType = ElementType.None;
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390 | }
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391 | }
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392 | else
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393 | {
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394 | if (character == '#')
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395 | {
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396 | elementType = ElementType.Comment;
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397 | } else
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398 | if ((character == '\r') || (character == '\n'))
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399 | {
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400 | // Ignore new lines
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401 | }
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402 | else
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403 | if (IsSpecialChar(character))
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404 | {
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405 | elementType = ElementType.SpecialChar;
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406 | resultString += character;
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407 | break;
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408 | }
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409 | else
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410 | if (char.IsWhiteSpace(character))
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411 | {
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412 | if (resultString == "")
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413 | {
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414 | }
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415 | else
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416 | {
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417 | break;
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418 | }
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419 | }
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420 | else
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421 | if (char.IsLetter(character) || (character == '_') || (character == '@'))
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422 | {
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423 | resultString += character;
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424 | elementType = ElementType.Ident;
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425 | }
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426 | else
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427 | if (char.IsNumber(character) || (character == '-'))
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428 | {
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429 | resultString += character;
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430 | elementType = ElementType.Number;
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431 | }
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432 | else
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433 | if (character == '\"')
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434 | {
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435 | elementType = ElementType.String;
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436 | }
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437 | else
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438 | {
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439 | ErrorMessage("Unsupported character '" + character + "'");
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440 | }
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441 | }
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442 | }
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443 | ParserToken result;
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444 | result.text = resultString;
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445 | result.type = elementType;
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446 | return result;
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447 | }
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448 |
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449 | public string ReadNext()
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450 | {
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451 | if (lastToken.type == ElementType.None) lastToken = ReadNextToken();
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452 | string result = lastToken.text;
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453 | lastToken.type = ElementType.None;
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454 | externalPosition = currentPosition;
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455 | return result;
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456 | }
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457 |
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458 | public bool CheckNext(string text)
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459 | {
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460 | if (lastToken.type == ElementType.None) lastToken = ReadNextToken();
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461 | return lastToken.text == text;
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462 | }
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463 |
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464 | public bool CheckNextType(ElementType type)
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465 | {
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466 | if (lastToken.type == ElementType.None) lastToken = ReadNextToken();
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467 | return lastToken.type == type;
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468 | }
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469 |
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470 | public void Expect(string text)
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471 | {
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472 | if (lastToken.type == ElementType.None) lastToken = ReadNextToken();
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473 | lastToken.type = ElementType.None;
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474 | externalPosition = currentPosition;
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475 | if (lastToken.text != text)
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476 | {
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477 | ErrorMessage("Expected '" + text + "' but '" + lastToken.text + "' found.");
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478 | }
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479 | }
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480 |
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481 | public void ErrorMessage(string Text)
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482 | {
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483 | throw new Exception("Parsing error: " + Text + " (" + externalPosition.position.X.ToString() + "," +
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484 | externalPosition.position.Y.ToString() + ")");
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485 | }
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486 |
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487 | public ParserState GetState()
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488 | {
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489 | ParserState result = new ParserState();
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490 | result.currentPosition = currentPosition;
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491 | result.externalPosition = externalPosition;
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492 | result.lastToken = lastToken;
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493 | return result;
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494 | }
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495 |
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496 | public void SetState(ParserState state)
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497 | {
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498 | currentPosition = state.currentPosition;
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499 | externalPosition = state.externalPosition;
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500 | lastToken = state.lastToken;
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501 | }
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502 | }
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503 |
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504 | static class StringExtensions
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505 | {
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506 | public static IEnumerable<String> SplitInParts(this String s, Int32 partLength)
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507 | {
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508 | if (s == null)
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509 | throw new ArgumentNullException("s");
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510 | if (partLength <= 0)
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511 | throw new ArgumentException("Part length has to be positive.", "partLength");
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512 |
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513 | for (var i = 0; i < s.Length; i += partLength)
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514 | yield return s.Substring(i, Math.Min(partLength, s.Length - i));
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515 | }
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516 |
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517 | public static string Unescape(this string txt)
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518 | {
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519 | if (string.IsNullOrEmpty(txt)) { return txt; }
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520 | StringBuilder retval = new StringBuilder(txt.Length);
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521 | for (int ix = 0; ix < txt.Length;)
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522 | {
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523 | int jx = txt.IndexOf('\\', ix);
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524 | if ((jx < 0) || (jx == txt.Length - 1)) jx = txt.Length;
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525 | retval.Append(txt, ix, jx - ix);
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526 | if (jx >= txt.Length) break;
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527 | switch (txt[jx + 1])
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528 | {
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529 | //case '\'': retval.Append('\''); break; // Single quote
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530 | case '"': retval.Append('"'); break; // Double quote
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531 | //case '\\': retval.Append('\\'); break; // Don't escape
|
---|
532 | case 'a': retval.Append('\a'); break; // Line feed
|
---|
533 | case 'b': retval.Append('\b'); break; // Backspace
|
---|
534 | case 'f': retval.Append('\f'); break; // Form feed
|
---|
535 | case 'n': retval.Append('\n'); break; // Line feed
|
---|
536 | case 'r': retval.Append('\r'); break; // Carriage return
|
---|
537 | case 't': retval.Append('\t'); break; // Horizontal tab
|
---|
538 | case 'v': retval.Append('\v'); break; // Vertical tab
|
---|
539 | default: // Unrecognized, copy as-is
|
---|
540 | retval.Append('\\').Append(txt[jx + 1]); break;
|
---|
541 | }
|
---|
542 | ix = jx + 2;
|
---|
543 | }
|
---|
544 | return retval.ToString();
|
---|
545 | }
|
---|
546 |
|
---|
547 | public static string Escape(this string input)
|
---|
548 | {
|
---|
549 | var literal = new StringBuilder(input.Length + 2);
|
---|
550 | foreach (var c in input)
|
---|
551 | {
|
---|
552 | switch (c)
|
---|
553 | {
|
---|
554 | //case '\'': literal.Append(@"\'"); break;
|
---|
555 | case '\"': literal.Append("\\\""); break;
|
---|
556 | //case '\\': literal.Append(@"\\"); break;
|
---|
557 | case '\0': literal.Append(@"\0"); break;
|
---|
558 | case '\a': literal.Append(@"\a"); break;
|
---|
559 | case '\b': literal.Append(@"\b"); break;
|
---|
560 | case '\f': literal.Append(@"\f"); break;
|
---|
561 | case '\n': literal.Append(@"\n"); break;
|
---|
562 | case '\r': literal.Append(@"\r"); break;
|
---|
563 | case '\t': literal.Append(@"\t"); break;
|
---|
564 | case '\v': literal.Append(@"\v"); break;
|
---|
565 | default:
|
---|
566 | if (Char.GetUnicodeCategory(c) != UnicodeCategory.Control)
|
---|
567 | {
|
---|
568 | literal.Append(c);
|
---|
569 | }
|
---|
570 | else
|
---|
571 | {
|
---|
572 | literal.Append(@"\u");
|
---|
573 | literal.Append(((ushort)c).ToString("x4"));
|
---|
574 | }
|
---|
575 | break;
|
---|
576 | }
|
---|
577 | }
|
---|
578 | return literal.ToString();
|
---|
579 | }
|
---|
580 | }
|
---|
581 | } |
---|