comparison: src/parser.h
src/parser.h
- changeset 333
- 07e65a4c6611
- parent 328
- 3ea38fd469ca
- child 358
- ef90ed0a5720
equal
deleted
inserted
replaced
| 332:ae7f7fbb9cda | 333:07e65a4c6611 |
|---|---|
| 18 | 18 |
| 19 #pragma once | 19 #pragma once |
| 20 #include "src/basics.h" | 20 #include "src/basics.h" |
| 21 #include "src/model.h" | 21 #include "src/model.h" |
| 22 | 22 |
| 23 class Parser : public QObject | 23 struct TextRange |
| 24 { | 24 { |
| 25 Q_OBJECT | 25 int start; |
| 26 public: | 26 int length; |
| 27 Parser(QTextStream& stream, QObject* parent = nullptr); | |
| 28 void parseBody(Model &model); | |
| 29 private: | |
| 30 QString readLine(); | |
| 31 QTextStream& stream; | |
| 32 }; | 27 }; |
| 33 | 28 |
| 34 ModelElement parseLDrawLine(QString line); | 29 |
| 30 enum class Attribute { | |
| 31 LineType, | |
| 32 Color, | |
| 33 X1, | |
| 34 Y1, | |
| 35 Z1, | |
| 36 X2, | |
| 37 Y2, | |
| 38 Z2, | |
| 39 X3, | |
| 40 Y3, | |
| 41 Z3, | |
| 42 X4, | |
| 43 Y4, | |
| 44 Z4, | |
| 45 Name, | |
| 46 Text | |
| 47 }; | |
| 48 | |
| 49 template<typename T, Attribute... Attribs> | |
| 50 struct LineType | |
| 51 { | |
| 52 static constexpr Attribute attributes[] = {Attribs...}; | |
| 53 QString content; | |
| 54 TextRange positions[countof(attributes)]; | |
| 55 T value; | |
| 56 }; | |
| 57 | |
| 58 using LineType0 = LineType<Comment, Attribute::Text>; | |
| 59 using LineType1 = LineType<Colored<SubfileReference>, | |
| 60 Attribute::LineType, | |
| 61 Attribute::Color, | |
| 62 Attribute::X1, | |
| 63 Attribute::Y1, | |
| 64 Attribute::Z1, | |
| 65 Attribute::X2, | |
| 66 Attribute::Y2, | |
| 67 Attribute::Z2, | |
| 68 Attribute::X3, | |
| 69 Attribute::Y3, | |
| 70 Attribute::Z3, | |
| 71 Attribute::X4, | |
| 72 Attribute::Y4, | |
| 73 Attribute::Z4, | |
| 74 Attribute::Name>; | |
| 75 using LineType2 = LineType<Colored<LineSegment>, | |
| 76 Attribute::LineType, | |
| 77 Attribute::Color, | |
| 78 Attribute::X1, | |
| 79 Attribute::Y1, | |
| 80 Attribute::Z1, | |
| 81 Attribute::X2, | |
| 82 Attribute::Y2, | |
| 83 Attribute::Z2>; | |
| 84 using LineType3 = LineType<Colored<Triangle>, | |
| 85 Attribute::LineType, | |
| 86 Attribute::Color, | |
| 87 Attribute::X1, | |
| 88 Attribute::Y1, | |
| 89 Attribute::Z1, | |
| 90 Attribute::X2, | |
| 91 Attribute::Y2, | |
| 92 Attribute::Z2, | |
| 93 Attribute::X3, | |
| 94 Attribute::Y3, | |
| 95 Attribute::Z3>; | |
| 96 using LineType4 = LineType<Colored<Quadrilateral>, | |
| 97 Attribute::LineType, | |
| 98 Attribute::Color, | |
| 99 Attribute::X1, | |
| 100 Attribute::Y1, | |
| 101 Attribute::Z1, | |
| 102 Attribute::X2, | |
| 103 Attribute::Y2, | |
| 104 Attribute::Z2, | |
| 105 Attribute::X3, | |
| 106 Attribute::Y3, | |
| 107 Attribute::Z3, | |
| 108 Attribute::X4, | |
| 109 Attribute::Y4, | |
| 110 Attribute::Z4>; | |
| 111 using LineType5 = LineType<Colored<ConditionalEdge>, | |
| 112 Attribute::LineType, | |
| 113 Attribute::Color, | |
| 114 Attribute::X1, | |
| 115 Attribute::Y1, | |
| 116 Attribute::Z1, | |
| 117 Attribute::X2, | |
| 118 Attribute::Y2, | |
| 119 Attribute::Z2, | |
| 120 Attribute::X3, | |
| 121 Attribute::Y3, | |
| 122 Attribute::Z3, | |
| 123 Attribute::X4, | |
| 124 Attribute::Y4, | |
| 125 Attribute::Z4>; | |
| 126 | |
| 127 template<typename T, Attribute Attrib> | |
| 128 constexpr int findAttributeIndex() | |
| 129 { | |
| 130 constexpr auto it = std::find( | |
| 131 std::begin(T::attributes), | |
| 132 std::end(T::attributes), | |
| 133 Attrib | |
| 134 ); | |
| 135 static_assert(it != std::end(T::attributes), "Attribute not found"); | |
| 136 return it - std::begin(T::attributes); | |
| 137 } | |
| 138 | |
| 139 template<typename T, Attribute Attrib> | |
| 140 constexpr int attribIndex = findAttributeIndex<T, Attrib>(); | |
| 141 static_assert(attribIndex<LineType3, Attribute::X1> == 2); | |
| 142 using ParsedLine = std::variant<LineType0, LineType1, LineType2, LineType3, LineType4, LineType5>; | |
| 143 opt<ParsedLine> parse(const QString& line); |
