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1 /++
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2 Author: Aziz Köksal
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3 License: GPL3
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4 +/
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5 module cmd.Statistics;
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6 import dil.Token;
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7 import dil.File;
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8 import dil.Lexer;
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9 import std.stdio;
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10
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11 struct Statistics
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12 {
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13 uint whitespaceCount;
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14 uint wsTokenCount;
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15 uint keywordCount;
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16 uint identCount;
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17 uint numberCount;
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18 uint commentCount;
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19 }
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20
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21 void statistics(string fileName)
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22 {
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23 auto sourceText = loadFile(fileName);
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24 auto lx = new Lexer(sourceText, fileName);
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25
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26 auto token = lx.getTokens();
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27 char* end = lx.text.ptr;
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28
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29 Statistics stats;
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30 // Traverse linked list.
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31 while (token.type != TOK.EOF)
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32 {
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33 token = token.next;
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34
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35 // Count whitespace characters
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36 if (end != token.start)
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37 {
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38 stats.whitespaceCount += token.start - end;
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39 }
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40
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41 switch (token.type)
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42 {
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43 case TOK.Identifier:
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44 stats.identCount++;
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45 break;
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46 case TOK.Comment:
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47 stats.commentCount++;
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48 break;
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49 case TOK.Int32, TOK.Int64, TOK.Uint32, TOK.Uint64,
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50 TOK.Float32, TOK.Float64, TOK.Float80,
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51 TOK.Imaginary32, TOK.Imaginary64, TOK.Imaginary80:
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52 stats.numberCount++;
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53 break;
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54 default:
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55 if (token.isKeyword)
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56 stats.keywordCount++;
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57 }
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58
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59 if (token.isWhitespace)
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60 stats.wsTokenCount++;
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61
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62 end = token.end;
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63 }
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64 writefln("Whitespace character count: %s\n"
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65 "Whitespace token count: %s\n"
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66 "Keyword count: %s\n"
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67 "Identifier count: %s\n"
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68 "Number count: %s\n"
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69 "Comment count: %s\n"
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70 "Lines of code: %s",
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71 stats.whitespaceCount,
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72 stats.wsTokenCount,
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73 stats.keywordCount,
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74 stats.identCount,
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75 stats.numberCount,
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76 stats.commentCount,
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77 lx.loc);
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78 }
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