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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 Settings;
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6 import Parser, SyntaxTree, Declarations, Expressions;
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7 import std.metastrings;
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8
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9 version(D2)
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10 {
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11 const VERSION_MAJOR = 2;
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12 const VERSION_MINOR = 0;
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13 }
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14 else
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15 {
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16 const VERSION_MAJOR = 1;
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17 const VERSION_MINOR = 0;
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18 }
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19 const string VERSION = Format!("%s.%s", VERSION_MAJOR, VERSION_MINOR);
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20
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21 const COMPILED_WITH = __VENDOR__;
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22 const COMPILED_VERSION = Format!("%s.%s", __VERSION__/1000, __VERSION__%1000);
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23 const COMPILED_DATE = __TIMESTAMP__;
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24
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25 const usageHighlight = "highlight (hl) file.d";
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26
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27 struct GlobalSettings
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28 {
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29 static:
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30 string language; /// Language of messages catalogue to load.
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31 string[] messages; /// Table of localized compiler messages.
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32 void load()
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33 {
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34 auto fileName = "config.d"[];
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35 auto sourceText = cast(char[]) std.file.read(fileName);
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36 auto parser = new Parser(sourceText, fileName);
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37 parser.start();
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38 auto root = parser.parseModule();
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39
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40 if (parser.errors.length || parser.lx.errors.length)
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41 {
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42 throw new Exception("There are errors in " ~ fileName ~ ".");
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43 }
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44
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45 foreach (decl; root.children)
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46 {
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47 auto v = Cast!(VariableDeclaration)(decl);
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48 if (v && v.idents[0].srcText == "language")
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49 {
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50 auto e = v.values[0];
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51 if (!e)
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52 throw new Exception("language variable has no value set.");
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53 auto val = Cast!(StringLiteralsExpression)(e);
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54 if (val)
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55 {
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56 GlobalSettings.language = val.getString();
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57 break;
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58 }
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59 }
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60 }
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61
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62 // Load messages
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63 if (GlobalSettings.language.length)
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64 {
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65 fileName = "lang_" ~ GlobalSettings.language ~ ".d";
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66 sourceText = cast(char[]) std.file.read(fileName);
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67 parser = new Parser(sourceText, fileName);
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68 parser.start();
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69 root = parser.parseModule();
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70
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71 if (parser.errors.length || parser.lx.errors.length)
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72 {
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73 throw new Exception("There are errors in "~fileName~".");
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74 }
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75
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76 char[][] messages;
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77 foreach (decl; root.children)
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78 {
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79 auto v = Cast!(VariableDeclaration)(decl);
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80 if (v && v.idents[0].srcText == "messages")
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81 {
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82 auto e = v.values[0];
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83 if (!e)
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84 throw new Exception("messages variable in "~fileName~" has no value set.");
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85 if (auto array = Cast!(ArrayInitializer)(e))
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86 {
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87 foreach (value; array.values)
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88 {
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89 if (auto str = Cast!(StringLiteralsExpression)(value))
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90 messages ~= str.getString();
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91 }
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92 }
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93 else
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94 throw new Exception("messages variable is set to "~e.classinfo.name~" instead of an ArrayInitializer.");
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95 }
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96 }
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97 GlobalSettings.messages = messages;
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98 }
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99 }
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100
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101 }
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