--- a/src/parser.h Mon Jul 04 15:37:22 2022 +0300
+++ b/src/parser.h Mon Jul 04 19:53:13 2022 +0300
@@ -20,15 +20,124 @@
#include "src/basics.h"
#include "src/model.h"
-class Parser : public QObject
+struct TextRange
{
- Q_OBJECT
-public:
- Parser(QTextStream& stream, QObject* parent = nullptr);
- void parseBody(Model &model);
-private:
- QString readLine();
- QTextStream& stream;
+ int start;
+ int length;
+};
+
+
+enum class Attribute {
+ LineType,
+ Color,
+ X1,
+ Y1,
+ Z1,
+ X2,
+ Y2,
+ Z2,
+ X3,
+ Y3,
+ Z3,
+ X4,
+ Y4,
+ Z4,
+ Name,
+ Text
+};
+
+template<typename T, Attribute... Attribs>
+struct LineType
+{
+ static constexpr Attribute attributes[] = {Attribs...};
+ QString content;
+ TextRange positions[countof(attributes)];
+ T value;
};
-ModelElement parseLDrawLine(QString line);
+using LineType0 = LineType<Comment, Attribute::Text>;
+using LineType1 = LineType<Colored<SubfileReference>,
+ Attribute::LineType,
+ Attribute::Color,
+ Attribute::X1,
+ Attribute::Y1,
+ Attribute::Z1,
+ Attribute::X2,
+ Attribute::Y2,
+ Attribute::Z2,
+ Attribute::X3,
+ Attribute::Y3,
+ Attribute::Z3,
+ Attribute::X4,
+ Attribute::Y4,
+ Attribute::Z4,
+ Attribute::Name>;
+using LineType2 = LineType<Colored<LineSegment>,
+ Attribute::LineType,
+ Attribute::Color,
+ Attribute::X1,
+ Attribute::Y1,
+ Attribute::Z1,
+ Attribute::X2,
+ Attribute::Y2,
+ Attribute::Z2>;
+using LineType3 = LineType<Colored<Triangle>,
+ Attribute::LineType,
+ Attribute::Color,
+ Attribute::X1,
+ Attribute::Y1,
+ Attribute::Z1,
+ Attribute::X2,
+ Attribute::Y2,
+ Attribute::Z2,
+ Attribute::X3,
+ Attribute::Y3,
+ Attribute::Z3>;
+using LineType4 = LineType<Colored<Quadrilateral>,
+ Attribute::LineType,
+ Attribute::Color,
+ Attribute::X1,
+ Attribute::Y1,
+ Attribute::Z1,
+ Attribute::X2,
+ Attribute::Y2,
+ Attribute::Z2,
+ Attribute::X3,
+ Attribute::Y3,
+ Attribute::Z3,
+ Attribute::X4,
+ Attribute::Y4,
+ Attribute::Z4>;
+using LineType5 = LineType<Colored<ConditionalEdge>,
+ Attribute::LineType,
+ Attribute::Color,
+ Attribute::X1,
+ Attribute::Y1,
+ Attribute::Z1,
+ Attribute::X2,
+ Attribute::Y2,
+ Attribute::Z2,
+ Attribute::X3,
+ Attribute::Y3,
+ Attribute::Z3,
+ Attribute::X4,
+ Attribute::Y4,
+ Attribute::Z4>;
+
+template<typename T, Attribute Attrib>
+constexpr int findAttributeIndex()
+{
+ constexpr auto it = std::find(
+ std::begin(T::attributes),
+ std::end(T::attributes),
+ Attrib
+ );
+ static_assert(it != std::end(T::attributes), "Attribute not found");
+ return it - std::begin(T::attributes);
+}
+
+template<typename T, Attribute Attrib>
+constexpr int attribIndex = findAttributeIndex<T, Attrib>();
+static_assert(attribIndex<LineType3, Attribute::X1> == 2);
+using ParsedLine = std::variant<LineType0, LineType1, LineType2, LineType3, LineType4, LineType5>;
+opt<ParsedLine> parse(const QString& line);