labview_xml.h

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#ifndef LABVIEW_XML
#define LABVIEW_XML

#include "DAEstatus.h"

// indexed by type field
static const wchar_t* lv_tags[] = { L"U8", L"U16", L"U32", 
                                                                        L"I8", L"I16", L"I32", 
                                                                        L"String", L"DBL", L"EW", 
                                                                        L"Boolean", L"Path" };
static const char* lv_format[] = { "%hu", "%hu", "%u",
                                                                        "%h", "%h", "%d",
                                                                        "%s", "%g", "%d" 
                                                                        "%d", "%s" };
static const char* lv_defaults[] = { "0", "0", "0",
                                                                        "0", "0", "0",
                                                                        "", "0.0", "0",
                                                                        "0", "" };
static const int n_lv = sizeof(lv_tags) / sizeof(wchar_t*);

class LabviewXML
{
        IXMLDOMDocument *m_pxmldom;
        struct labview_item
        {
                int type;
                std::vector<std::string> value;
                int index;
                labview_item() : type(-1000), index(0) {}
        };
        typedef std::map<std::string, labview_item> list_t;
        typedef std::pair<list_t::iterator,bool> insert_t;
        typedef list_t::iterator iterator_t;
        typedef list_t::const_iterator c_iterator_t;
        list_t m_list;

public:
        int loadFromString(BSTR xml_string, DAEstatus& status);
        int loadFromString(const char* xml_string, DAEstatus& status);
        int saveToString(std::string& s, DAEstatus& status);
//      int saveToString(BSTR* bstr, DAEstatus& status);

        int loadFromFile(const char* filename, DAEstatus& status);
        int saveToFile(const char* filename, DAEstatus& status);

        int updateFrom(const LabviewXML& lvxml, DAEstatus& status);
        int updateFromString(const std::string& xml_string, DAEstatus& status);
        int updateFromString(const char* xml_chars, DAEstatus& status);

        int setValue(const char* name, const char* value, DAEstatus& status);
        int setValue(const char* name, double value, DAEstatus& status);
        int setValue(const char* name, long value, DAEstatus& status);
        int setValue(const char* name, int value, DAEstatus& status);
        int setValue(const char* name, unsigned long value, DAEstatus& status);
        int setValue(const char* name, unsigned int value, DAEstatus& status);
        int setValue(const char* name, __int64 value, DAEstatus& status);
        int setValue(const char* name, const std::vector<std::string>& value, DAEstatus& status);

        int getValue(const char* name, char* value, int max_len, bool write_null, DAEstatus& status);
        int getValue(const char* name, std::string& value, DAEstatus& status);
        int getValue(const char* name, double& value, DAEstatus& status);
        int getValue(const char* name, float& value, DAEstatus& status);
        int getValue(const char* name, long& value, DAEstatus& status);
        int getValue(const char* name, int& value, DAEstatus& status);
        int getValue(const char* name, __int64& value, DAEstatus& status);
        int getValue(const char* name, std::vector<std::string>& value, DAEstatus& status);

        std::string valueAsString(const char* name, DAEstatus& status);
        LabviewXML(DAEstatus& status) : m_pxmldom(0) { DomFromCOM(status); }
        int close() { if (m_pxmldom != NULL) { m_pxmldom->Release(); m_pxmldom = 0; } return 1; }
        ~LabviewXML() { close(); }

protected:
        int processElements(int type, bool reading, DAEstatus& status);
        int processAllElements(bool reading, DAEstatus& status);
        int DomFromCOM(DAEstatus& status);
        int setISO8859Encoding(DAEstatus& status);

private:
        LabviewXML();
};

#endif