mex_parser.h

#include "../base/libconfig/libconfig.h++"
#include <itpp/itbase.h>
#include <itpp/itmex.h>
#include <stdlib.h>

using namespace itpp;
using namespace std;
using namespace libconfig;

class UImxArray : public Config {
public:
        UImxArray(const mxArray *mxarray) : Config() {
                Setting & setting = this->getRoot(); //setting is a group
                if (!mxIsStruct(mxarray)) { mexErrMsgTxt("Given mxArray is not a struct."); };
                //mexCallMATLAB(0, NULL, 1, (mxArray **) &mxarray, "dump");
                fillGroup(setting, mxarray);
                setAutoConvert(true);
        }
        UImxArray() : Config() {                
                setAutoConvert(true);
        }       
        void addList(const mxArray *mxarray, const char* name){
                Setting & setting = this->getRoot(); //setting is a group
                Setting & child = setting.add(name,Setting::TypeList);
                fillList(child,mxarray);
        }
        void addGroup(const mxArray *mxarray, const char* name){
                Setting & setting = this->getRoot(); //setting is a group
                Setting & child = setting.add(name,Setting::TypeGroup);
                fillGroup(child,mxarray);
        }
        operator Setting&()
        {
                 return getRoot();
        }
private:
        void storeNumeric(Setting &setting, const mxArray *value, string key = "") {
                //TODO: integer matrices
                if (!mxIsNumeric(value)) { mexErrMsgTxt("Given mxArray is not numeric."); };
                mat val = mxArray2mat(value);
                if ((val.rows() == 1) && (val.cols() == 1)) {
                        Setting &child = (key=="") ? setting.add(Setting::TypeFloat)
                                                   : setting.add(key, Setting::TypeFloat);
                        child = val(0,0);
                } else {
                        Setting &child = (key=="") ? setting.add(Setting::TypeList)
                                                   : setting.add(key, Setting::TypeList);
                        Setting &label = child.add(Setting::TypeString);
                        label = "matrix";
                        Setting &cols = child.add( Setting::TypeInt );
                        Setting &rows = child.add( Setting::TypeInt );
                        Setting &elements = child.add( Setting::TypeArray );
                        cols = val.cols();
                        rows = val.rows();
                        for (int i=0; i<val.rows(); i++) {
                                for (int j=0; j<val.cols(); j++) {
                                        Setting &el = elements.add(Setting::TypeFloat);
                                        el = val(i,j);
                                }
                        }
                }
        }

        void fillGroup(Setting &setting, const mxArray *mxarray) {
                if (!mxIsStruct(mxarray)) { mexErrMsgTxt("Given mxArray is not a struct."); };
                for(int i=0; i < mxGetNumberOfFields(mxarray); i++) {
                        const char *key = mxGetFieldNameByNumber(mxarray, i);
                        mxArray *value = mxGetField(mxarray, 0, key);
                        if (mxIsChar(value)) {
                                Setting &child = setting.add(key, Setting::TypeString);
                                child = mxArray2string(value);
                        }
                        if (mxIsLogical(value)) {
                                Setting &child = setting.add(key, Setting::TypeBoolean);
                                child = (bool) mxArray2bin(value);
                        }
                        if (mxIsStruct(value)) {
                                Setting &child = setting.add(key, Setting::TypeGroup);
                                fillGroup(child, value);
                        }
                        if (mxIsCell(value)) {
                                Setting &child = setting.add(key, Setting::TypeList);
                                fillList(child, value);
                        }
                        if (mxIsNumeric(value)) {
                                storeNumeric(setting, value, (string)key);
                        }
                }
        }
        
        void fillList(Setting &setting, const mxArray *mxarray) {
                if (!mxIsCell(mxarray)) { mexErrMsgTxt("Given mxArray is not a cell."); };
                for(int i=0; i < mxGetNumberOfElements(mxarray); i++) {
                        mxArray *value = mxGetCell(mxarray, i);
                        if (mxIsChar(value)) {
                                Setting &child = setting.add(Setting::TypeString);
                                child = mxArray2string(value);
                        }
                        if (mxIsLogical(value)) {
                                Setting &child = setting.add(Setting::TypeBoolean);
                                child = (bool) mxArray2bin(value);
                        }
                        if (mxIsStruct(value)) {
                                Setting &child = setting.add(Setting::TypeGroup);
                                fillGroup(child, value);
                        }
                        if (mxIsCell(value)) {
                                Setting &child = setting.add(Setting::TypeList);
                                fillList(child, value);
                        }
                        if (mxIsNumeric(value)) {
                                storeNumeric(setting, value);
                        }
                }
        }
};

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