MSLang.cpp

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#include "Utilities/MSLang.h"
#include "Algorithms/Quaternion.hpp"
#include "Physics/Physics.h"
#include "Utilities/MSLang/Difference.h"
#include "Utilities/MSLang/Ellipse.h"
#include "Utilities/MSLang/Intersection.h"
#include "Utilities/MSLang/Mask.h"
#include "Utilities/MSLang/Polygon.h"
#include "Utilities/MSLang/QuadTree.h"
#include "Utilities/MSLang/Rectangle.h"
#include "Utilities/MSLang/Repeat.h"
#include "Utilities/MSLang/Rotation.h"
#include "Utilities/MSLang/Shear.h"
#include "Utilities/MSLang/SymmetricDifference.h"
#include "Utilities/MSLang/Translation.h"
#include "Utilities/MSLang/Triangle.h"
#include "Utilities/MSLang/Union.h"
#include "Utilities/Mesher.h"
#include "Utilities/PortableBitmapReader.h"
 
#include <regex>
 
#include <cmath>
#include <cstdlib>
#include <fstream>
#include <iostream>
#include <streambuf>
#include <string>
 
namespace mslang {
    const std::string Function::UDouble = "([0-9]+\\.?[0-9]*([Ee][+-]?[0-9]+)?)";
    const std::string Function::Double  = "(-?[0-9]+\\.?[0-9]*([Ee][+-]?[0-9]+)?)";
    const std::string Function::UInt    = "([0-9]+)";
    const std::string Function::FCall   = "([a-z_]*)\\((.*)";
 
    bool parse(std::string str, Function*& fun) {
        iterator it  = str.begin();
        iterator end = str.end();
        if (!Function::parse(it, end, fun)) {
            std::cout << "parsing failed here:" << std::string(it, end) << std::endl;
            return false;
        }
 
        return true;
    }
 
    bool Function::parse(iterator& it, const iterator& end, Function*& fun) {
        std::regex functionCall(Function::FCall);
        std::smatch what;
 
        std::string str(it, end);
        if (!std::regex_match(str, what, functionCall)) return false;
 
        std::string identifier = what[1];
        std::string arguments  = what[2];
        unsigned int shift     = identifier.size() + 1;
 
        if (identifier == "rectangle") {
            fun = new Rectangle;
            it += shift;
            if (!Rectangle::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "ellipse") {
            fun = new Ellipse;
            it += shift;
            if (!Ellipse::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "polygon") {
            fun = new Polygon;
            it += shift;
            if (!Polygon::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "mask") {
            fun = new Mask;
            it += shift;
 
            return Mask::parse_detail(it, end, fun);
        } else if (identifier == "repeat") {
            fun = new Repeat;
            it += shift;
            if (!Repeat::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "rotate") {
            fun = new Rotation;
            it += shift;
            if (!Rotation::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "translate") {
            fun = new Translation;
            it += shift;
            if (!Translation::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "shear") {
            fun = new Shear;
            it += shift;
            if (!Shear::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "union") {
            fun = new Union;
            it += shift;
            if (!Union::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "difference") {
            fun = new Difference;
            it += shift;
            if (!Difference::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "symmetric_difference") {
            fun = new SymmetricDifference;
            it += shift;
            if (!SymmetricDifference::parse_detail(it, end, fun)) return false;
 
            return true;
        } else if (identifier == "intersection") {
            fun = new Intersection;
            it += shift;
            if (!Intersection::parse_detail(it, end, fun)) return false;
 
            return true;
        }
 
        return (it == end);
    }
}  // namespace mslang