llnamevalue.cpp

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// Examples:
// AvatarCharacter STRING RW DSV male1

#include "linden_common.h"

#include <map>

#include "llnamevalue.h"
#include "u64.h"
#include "llstring.h"
#include "llcamera.h"

// Anonymous enumeration to provide constants in this file.
// *NOTE: These values may be used in sscanf statements below as their
// value-1, so search for '2047' if you cange NV_BUFFER_LEN or '63' if
// you change U64_BUFFER_LEN.
enum
{
        NV_BUFFER_LEN = 2048,
        U64_BUFFER_LEN = 64
};

struct user_callback_t
{
        user_callback_t() {};
        user_callback_t(TNameValueCallback cb, void** data) : m_Callback(cb), m_Data(data) {}
        TNameValueCallback      m_Callback;
        void **                         m_Data;
};
typedef std::map<char *, user_callback_t> user_callback_map_t;
user_callback_map_t gUserCallbackMap;

LLStringTable   gNVNameTable(16384);

char NameValueTypeStrings[NVT_EOF][NAME_VALUE_TYPE_STRING_LENGTH] = /*Flawfinder: Ignore*/
{
        "NULL",
        "STRING",
        "F32",
        "S32",
        "VEC3",
        "U32",
        "CAMERA", // Deprecated, but leaving in case removing completely would cause problems
        "ASSET",
        "U64"
};              

char NameValueClassStrings[NVC_EOF][NAME_VALUE_CLASS_STRING_LENGTH] = /*Flawfinder: Ignore*/
{
        "NULL",
        "R",                    // read only
        "RW",                   // read write
        "CB"                    // callback
};              

char NameValueSendtoStrings[NVS_EOF][NAME_VALUE_SENDTO_STRING_LENGTH] = /*Flawfinder: Ignore*/
{
        "NULL",
        "S",    // "Sim", formerly SIM
        "DS",   // "Data Sim" formerly SIM_SPACE
        "SV",   // "Sim Viewer" formerly SIM_VIEWER
        "DSV"   // "Data Sim Viewer", formerly SIM_SPACE_VIEWER
};              /*Flawfinder: Ignore*/


void add_use_callback(char *name, TNameValueCallback ucb, void **user_data)
{
        char *temp = gNVNameTable.addString(name);
        gUserCallbackMap[temp] = user_callback_t(ucb,user_data);
}


//
// Class
//

LLNameValue::LLNameValue()
{
        baseInit();
}

void LLNameValue::baseInit()
{
        mNVNameTable = &gNVNameTable;

        mName = NULL;
        mNameValueReference.string = NULL;

        mType = NVT_NULL;
        mStringType = NameValueTypeStrings[NVT_NULL];
        
        mClass = NVC_NULL;
        mStringClass = NameValueClassStrings[NVC_NULL];
        
        mSendto = NVS_NULL;
        mStringSendto = NameValueSendtoStrings[NVS_NULL];

        mNameValueCB = NULL;
        mUserData = NULL;
}

void LLNameValue::init(const char *name, const char *data, const char *type, const char *nvclass, const char *nvsendto, TNameValueCallback nvcb, void **user_data)
{
        mNVNameTable = &gNVNameTable;

        mName = mNVNameTable->addString(name);
        
        // Nota Bene: Whatever global structure manages this should have these in the name table already!
        mStringType = mNVNameTable->addString(type);
        if (!strcmp(mStringType, "STRING"))
        {
                S32 string_length = (S32)strlen(data);          /*Flawfinder: Ignore*/
                mType = NVT_STRING;

                delete[] mNameValueReference.string;
                
                // two options here. . .  data can either look like foo or "foo"
                // WRONG! - this is a poorly implemented and incomplete escape
                // mechanism. For example, using this scheme, there is no way
                // to tell an intentional double quotes from a zero length
                // string. This needs to excised. Phoenix
                //if (strchr(data, '\"'))
                //{
                //      string_length -= 2;
                //      mNameValueReference.string = new char[string_length + 1];;
                //      strncpy(mNameValueReference.string, data + 1, string_length);
                //}
                //else
                //{
                mNameValueReference.string = new char[string_length + 1];;
                strncpy(mNameValueReference.string, data, string_length);               /*Flawfinder: Ignore*/
                //}
                mNameValueReference.string[string_length] = 0;
        }
        else if (!strcmp(mStringType, "F32"))
        {
                mType = NVT_F32;
                mNameValueReference.f32 = new F32((F32)atof(data));
        }
        else if (!strcmp(mStringType, "S32"))
        {
                mType = NVT_S32;
                mNameValueReference.s32 = new S32(atoi(data));
        }
        else if (!strcmp(mStringType, "U64"))
        {
                mType = NVT_U64;
                mNameValueReference.u64 = new U64(str_to_U64(data));
        }
        else if (!strcmp(mStringType, "VEC3"))
        {
                mType = NVT_VEC3;
                F32 t1, t2, t3;

                // two options here. . .  data can either look like 0, 1, 2 or <0, 1, 2>

                if (strchr(data, '<'))
                {
                        sscanf(data, "<%f, %f, %f>", &t1, &t2, &t3);
                }
                else
                {
                        sscanf(data, "%f, %f, %f", &t1, &t2, &t3);
                }

                // finite checks
                if (!llfinite(t1) || !llfinite(t2) || !llfinite(t3))
                {
                        t1 = 0.f;
                        t2 = 0.f;
                        t3 = 0.f;
                }

                mNameValueReference.vec3 = new LLVector3(t1, t2, t3);
        }
        else if (!strcmp(mStringType, "U32"))
        {
                mType = NVT_U32;
                mNameValueReference.u32 = new U32(atoi(data));
        }
        else if(!strcmp(mStringType, (const char*)NameValueTypeStrings[NVT_ASSET]))
        {
                // assets are treated like strings, except that the name has
                // meaning to an LLAssetInfo object
                S32 string_length = (S32)strlen(data);          /*Flawfinder: Ignore*/
                mType = NVT_ASSET;

                // two options here. . .  data can either look like foo or "foo"
                // WRONG! - this is a poorly implemented and incomplete escape
                // mechanism. For example, using this scheme, there is no way
                // to tell an intentional double quotes from a zero length
                // string. This needs to excised. Phoenix
                //if (strchr(data, '\"'))
                //{
                //      string_length -= 2;
                //      mNameValueReference.string = new char[string_length + 1];;
                //      strncpy(mNameValueReference.string, data + 1, string_length);
                //}
                //else
                //{
                mNameValueReference.string = new char[string_length + 1];;
                strncpy(mNameValueReference.string, data, string_length);               /*Flawfinder: Ignore*/
                //}
                mNameValueReference.string[string_length] = 0;
        }
        else
        {
                llwarns << "Unknown name value type string " << mStringType << " for " << mName << llendl;
                mType = NVT_NULL;
        }


        // Nota Bene: Whatever global structure manages this should have these in the name table already!
        if (!strcmp(nvclass, "R") ||
                !strcmp(nvclass, "READ_ONLY"))                  // legacy
        {
                mClass = NVC_READ_ONLY;
                mStringClass = mNVNameTable->addString("R");
        }
        else if (!strcmp(nvclass, "RW") ||
                        !strcmp(nvclass, "READ_WRITE")) // legacy
        {
                mClass = NVC_READ_WRITE;
                mStringClass = mNVNameTable->addString("RW");
        }
        else if (!strcmp(nvclass, "CB") ||
                        !strcmp(nvclass, "CALLBACK"))           // legacy
        {
                mClass = NVC_CALLBACK;
                mStringClass = mNVNameTable->addString("CB");
                mNameValueCB = nvcb;
                mUserData = user_data;
        }
        else
        {
                // assume it's bad
                mClass = NVC_NULL;
                mStringClass = mNVNameTable->addString(nvclass);
                mNameValueCB = NULL;
                mUserData = NULL;

                // are we a user-defined call back?
                for (user_callback_map_t::iterator iter = gUserCallbackMap.begin();
                         iter != gUserCallbackMap.end(); iter++)
                {
                        char* tname = iter->first;
                        if (tname == mStringClass)
                        {
                                mClass = NVC_CALLBACK;
                                mNameValueCB = (iter->second).m_Callback;
                                mUserData = (iter->second).m_Data;
                        }
                }

                // Warn if we didn't find a callback
                if (mClass == NVC_NULL)
                {
                        llwarns << "Unknown user callback in name value init() for " << mName << llendl;
                }
        }

        // Initialize the sendto variable
        if (!strcmp(nvsendto, "S") ||
                !strcmp(nvsendto, "SIM"))                       // legacy
        {
                mSendto = NVS_SIM;
                mStringSendto = mNVNameTable->addString("S");
        }
        else if (!strcmp(nvsendto, "DS") ||
                !strcmp(nvsendto, "SIM_SPACE")) // legacy
        {
                mSendto = NVS_DATA_SIM;
                mStringSendto = mNVNameTable->addString("DS");
        }
        else if (!strcmp(nvsendto, "SV") ||
                        !strcmp(nvsendto, "SIM_VIEWER"))        // legacy
        {
                mSendto = NVS_SIM_VIEWER;
                mStringSendto = mNVNameTable->addString("SV");
        }
        else if (!strcmp(nvsendto, "DSV") ||
                        !strcmp(nvsendto, "SIM_SPACE_VIEWER"))  // legacy
        {
                mSendto = NVS_DATA_SIM_VIEWER;
                mStringSendto = mNVNameTable->addString("DSV");
        }
        else
        {
                llwarns << "LLNameValue::init() - unknown sendto field " 
                                << nvsendto << " for NV " << mName << llendl;
                mSendto = NVS_NULL;
                mStringSendto = mNVNameTable->addString("S");
        }

}


LLNameValue::LLNameValue(const char *name, const char *data, const char *type, const char *nvclass, TNameValueCallback nvcb, void **user_data)
{
        baseInit();
        // if not specified, send to simulator only
        init(name, data, type, nvclass, "SIM", nvcb, user_data);
}


LLNameValue::LLNameValue(const char *name, const char *data, const char *type, const char *nvclass, const char *nvsendto, TNameValueCallback nvcb, void **user_data)
{
        baseInit();
        init(name, data, type, nvclass, nvsendto, nvcb, user_data);
}



// Initialize without any initial data.
LLNameValue::LLNameValue(const char *name, const char *type, const char *nvclass, TNameValueCallback nvcb, void **user_data)
{
        baseInit();
        mName = mNVNameTable->addString(name);
        
        // Nota Bene: Whatever global structure manages this should have these in the name table already!
        mStringType = mNVNameTable->addString(type);
        if (!strcmp(mStringType, "STRING"))
        {
                mType = NVT_STRING;
                mNameValueReference.string = NULL;
        }
        else if (!strcmp(mStringType, "F32"))
        {
                mType = NVT_F32;
                mNameValueReference.f32 = NULL;
        }
        else if (!strcmp(mStringType, "S32"))
        {
                mType = NVT_S32;
                mNameValueReference.s32 = NULL;
        }
        else if (!strcmp(mStringType, "VEC3"))
        {
                mType = NVT_VEC3;
                mNameValueReference.vec3 = NULL;
        }
        else if (!strcmp(mStringType, "U32"))
        {
                mType = NVT_U32;
                mNameValueReference.u32 = NULL;
        }
        else if (!strcmp(mStringType, "U64"))
        {
                mType = NVT_U64;
                mNameValueReference.u64 = NULL;
        }
        else if(!strcmp(mStringType, (const char*)NameValueTypeStrings[NVT_ASSET]))
        {
                mType = NVT_ASSET;
                mNameValueReference.string = NULL;
        }
        else
        {
                mType = NVT_NULL;
                llinfos << "Unknown name-value type " << mStringType << llendl;
        }

        // Nota Bene: Whatever global structure manages this should have these in the name table already!
        mStringClass = mNVNameTable->addString(nvclass);
        if (!strcmp(mStringClass, "READ_ONLY"))
        {
                mClass = NVC_READ_ONLY;
        }
        else if (!strcmp(mStringClass, "READ_WRITE"))
        {
                mClass = NVC_READ_WRITE;
        }
        else if (!strcmp(mStringClass, "CALLBACK"))
        {
                mClass = NVC_READ_WRITE;
                mNameValueCB = nvcb;
                mUserData = user_data;
        }

        // Initialize the sendto variable
        mStringSendto = mNVNameTable->addString("SIM");
        mSendto = NVS_SIM;
}


// data is in the format:
// "NameValueName       Type    Class   Data"
LLNameValue::LLNameValue(const char *data)
{
        baseInit();
        static char name[NV_BUFFER_LEN];        /*Flawfinder: ignore*/
        static char type[NV_BUFFER_LEN];        /*Flawfinder: ignore*/
        static char nvclass[NV_BUFFER_LEN];     /*Flawfinder: ignore*/
        static char nvsendto[NV_BUFFER_LEN];    /*Flawfinder: ignore*/
        static char nvdata[NV_BUFFER_LEN];      /*Flawfinder: ignore*/

        S32 i;

        S32     character_count = 0;
        S32     length = 0;

        // go to first non-whitespace character
        while (1)
        {
                if (  (*(data + character_count) == ' ')
                        ||(*(data + character_count) == '\n')
                        ||(*(data + character_count) == '\t')
                        ||(*(data + character_count) == '\r'))
                {
                        character_count++;
                }
                else
                {
                        break;
                }
        }

        // read in the name
        sscanf((data + character_count), "%2047s", name);       /*Flawfinder: ignore*/

        // bump past it and add null terminator
        length = (S32)strlen(name);                     /* Flawfinder: ignore */
        name[length] = 0;
        character_count += length;

        // go to the next non-whitespace character
        while (1)
        {
                if (  (*(data + character_count) == ' ')
                        ||(*(data + character_count) == '\n')
                        ||(*(data + character_count) == '\t')
                        ||(*(data + character_count) == '\r'))
                {
                        character_count++;
                }
                else
                {
                        break;
                }
        }

        // read in the type
        sscanf((data + character_count), "%2047s", type);       /*Flawfinder: ignore*/

        // bump past it and add null terminator
        length = (S32)strlen(type);             /* Flawfinder: ignore */
        type[length] = 0;
        character_count += length;

        // go to the next non-whitespace character
        while (1)
        {
                if (  (*(data + character_count) == ' ')
                        ||(*(data + character_count) == '\n')
                        ||(*(data + character_count) == '\t')
                        ||(*(data + character_count) == '\r'))
                {
                        character_count++;
                }
                else
                {
                        break;
                }
        }

        // do we have a type argument?
        for (i = NVC_READ_ONLY; i < NVC_EOF; i++)
        {
                if (!strncmp(NameValueClassStrings[i], data + character_count, strlen(NameValueClassStrings[i])))               /* Flawfinder: ignore */
                {
                        break;
                }
        }

        if (i != NVC_EOF)
        {
                // yes we do!
                // read in the class
                sscanf((data + character_count), "%2047s", nvclass);    /*Flawfinder: ignore*/

                // bump past it and add null terminator
                length = (S32)strlen(nvclass);          /* Flawfinder: ignore */
                nvclass[length] = 0;
                character_count += length;

                // go to the next non-whitespace character
                while (1)
                {
                        if (  (*(data + character_count) == ' ')
                                ||(*(data + character_count) == '\n')
                                ||(*(data + character_count) == '\t')
                                ||(*(data + character_count) == '\r'))
                        {
                                character_count++;
                        }
                        else
                        {
                                break;
                        }
                }
        }
        else
        {
                // no type argument given, default to read-write
                strncpy(nvclass, "READ_WRITE", sizeof(nvclass) -1);             /* Flawfinder: ignore */
                nvclass[sizeof(nvclass) -1] = '\0';
        }

        // Do we have a sendto argument?
        for (i = NVS_SIM; i < NVS_EOF; i++)
        {
                if (!strncmp(NameValueSendtoStrings[i], data + character_count, strlen(NameValueSendtoStrings[i])))             /* Flawfinder: ignore */
                {
                        break;
                }
        }

        if (i != NVS_EOF)
        {
                // found a sendto argument
                sscanf((data + character_count), "%2047s", nvsendto);   /*Flawfinder: ignore*/

                // add null terminator
                length = (S32)strlen(nvsendto);         /* Flawfinder: ignore */
                nvsendto[length] = 0;
                character_count += length;

                // seek to next non-whitespace characer
                while (1)
                {
                        if (  (*(data + character_count) == ' ')
                                ||(*(data + character_count) == '\n')
                                ||(*(data + character_count) == '\t')
                                ||(*(data + character_count) == '\r'))
                        {
                                character_count++;
                        }
                        else
                        {
                                break;
                        }
                }
        }
        else
        {
                // no sendto argument given, default to sim only
                strncpy(nvsendto, "SIM", sizeof(nvsendto) -1);          /* Flawfinder: ignore */
                nvsendto[sizeof(nvsendto) -1] ='\0';
        }


        // copy the rest character by character into data
        length = 0;

        while ( (*(nvdata + length++) = *(data + character_count++)) )
                ;

        init(name, nvdata, type, nvclass, nvsendto);
}


LLNameValue::~LLNameValue()
{
        mNVNameTable->removeString(mName);
        mName = NULL;
        
        switch(mType)
        {
        case NVT_STRING:
        case NVT_ASSET:
                delete [] mNameValueReference.string;
                mNameValueReference.string = NULL;
                break;
        case NVT_F32:
                delete mNameValueReference.f32;
                mNameValueReference.string = NULL;
                break;
        case NVT_S32:
                delete mNameValueReference.s32;
                mNameValueReference.string = NULL;
                break;
        case NVT_VEC3:
                delete mNameValueReference.vec3;
                mNameValueReference.string = NULL;
                break;
        case NVT_U32:
                delete mNameValueReference.u32;
                mNameValueReference.u32 = NULL;
                break;
        case NVT_U64:
                delete mNameValueReference.u64;
                mNameValueReference.u64 = NULL;
                break;
        default:
                break;
        }

        delete[] mNameValueReference.string;
        mNameValueReference.string = NULL;
}

char    *LLNameValue::getString()
{
        if (mType == NVT_STRING)
        {
                return mNameValueReference.string;
        }
        else
        {
                llerrs << mName << " not a string!" << llendl;
                return NULL;
        }
}

const char *LLNameValue::getAsset() const
{
        if (mType == NVT_ASSET)
        {
                return mNameValueReference.string;
        }
        else
        {
                llerrs << mName << " not an asset!" << llendl;
                return NULL;
        }
}

F32             *LLNameValue::getF32()
{
        if (mType == NVT_F32)
        {
                return mNameValueReference.f32;
        }
        else
        {
                llerrs << mName << " not a F32!" << llendl;
                return NULL;
        }
}

S32             *LLNameValue::getS32()
{
        if (mType == NVT_S32)
        {
                return mNameValueReference.s32;
        }
        else
        {
                llerrs << mName << " not a S32!" << llendl;
                return NULL;
        }
}

U32             *LLNameValue::getU32()
{
        if (mType == NVT_U32)
        {
                return mNameValueReference.u32;
        }
        else
        {
                llerrs << mName << " not a U32!" << llendl;
                return NULL;
        }
}

U64             *LLNameValue::getU64()
{
        if (mType == NVT_U64)
        {
                return mNameValueReference.u64;
        }
        else
        {
                llerrs << mName << " not a U64!" << llendl;
                return NULL;
        }
}

void    LLNameValue::getVec3(LLVector3 &vec)
{
        if (mType == NVT_VEC3)
        {
                vec = *mNameValueReference.vec3;
        }
        else
        {
                llerrs << mName << " not a Vec3!" << llendl;
        }
}

LLVector3       *LLNameValue::getVec3()
{
        if (mType == NVT_VEC3)
        {
                 return (mNameValueReference.vec3);
        }
        else
        {
                llerrs << mName << " not a Vec3!" << llendl;
                return NULL;
        }
}


F32 LLNameValue::magnitude()
{
        switch(mType)
        {
        case NVT_STRING:
                return (F32)(strlen(mNameValueReference.string));               /* Flawfinder: ignore */
                break;
        case NVT_F32:
                return (fabsf(*mNameValueReference.f32));
                break;
        case NVT_S32:
                return (fabsf((F32)(*mNameValueReference.s32)));
                break;
        case NVT_VEC3:
                return (mNameValueReference.vec3->magVec());
                break;
        case NVT_U32:
                return (F32)(*mNameValueReference.u32);
                break;
        default:
                llerrs << "No magnitude operation for NV type " << mStringType << llendl;
                break;
        }
        return 0.f;
}


void LLNameValue::callCallback()
{
        if (mNameValueCB)
        {
                (*mNameValueCB)(this, mUserData);
        }
        else
        {
                llinfos << mName << " has no callback!" << llendl;
        }
}


BOOL LLNameValue::sendToData() const
{
        return (mSendto == NVS_DATA_SIM || mSendto == NVS_DATA_SIM_VIEWER);
}


BOOL LLNameValue::sendToViewer() const
{
        return (mSendto == NVS_SIM_VIEWER || mSendto == NVS_DATA_SIM_VIEWER);
}


LLNameValue &LLNameValue::operator=(const LLNameValue &a)
{
        if (mType != a.mType)
        {
                return *this;
        }
        if (mClass == NVC_READ_ONLY)
                return *this;

        BOOL b_changed = FALSE;
        if (  (mClass == NVC_CALLBACK)
                &&(*this != a))
        {
                b_changed = TRUE;
        }

        switch(a.mType)
        {
        case NVT_STRING:
        case NVT_ASSET:
                if (mNameValueReference.string)
                        delete [] mNameValueReference.string;

                mNameValueReference.string = new char [strlen(a.mNameValueReference.string) + 1];               /* Flawfinder: ignore */
                if(mNameValueReference.string != NULL)
                {
                        strcpy(mNameValueReference.string, a.mNameValueReference.string);               /* Flawfinder: ignore */
                }
                break;
        case NVT_F32:
                *mNameValueReference.f32 = *a.mNameValueReference.f32;
                break;
        case NVT_S32:
                *mNameValueReference.s32 = *a.mNameValueReference.s32;
                break;
        case NVT_VEC3:
                *mNameValueReference.vec3 = *a.mNameValueReference.vec3;
                break;
        case NVT_U32:
                *mNameValueReference.u32 = *a.mNameValueReference.u32;
                break;
        case NVT_U64:
                *mNameValueReference.u64 = *a.mNameValueReference.u64;
                break;
        default:
                llerrs << "Unknown Name value type " << (U32)a.mType << llendl;
                break;
        }

        if (b_changed)
        {
                callCallback();
        }

        return *this;
}

void LLNameValue::setString(const char *a)
{
        if (mClass == NVC_READ_ONLY)
                return;
        BOOL b_changed = FALSE;

        switch(mType)
        {
        case NVT_STRING:
                if (a)
                {
                        if (  (mClass == NVC_CALLBACK)
                                &&(strcmp(this->mNameValueReference.string,a)))
                        {
                                b_changed = TRUE;
                        }

                        if (mNameValueReference.string)
                        {
                                delete [] mNameValueReference.string;
                        }

                        mNameValueReference.string = new char [strlen(a) + 1];          /* Flawfinder: ignore */
                        if(mNameValueReference.string != NULL)
                        {
                                strcpy(mNameValueReference.string,  a);         /* Flawfinder: ignore */
                        }
                        
                        if (b_changed)
                        {
                                callCallback();
                        }
                }
                else
                {
                        if (mNameValueReference.string)
                                delete [] mNameValueReference.string;

                        mNameValueReference.string = new char [1];
                        mNameValueReference.string[0] = 0;
                }
                break;
        default:
                break;
        }

        if (b_changed)
        {
                callCallback();
        }

        return;
}


void LLNameValue::setAsset(const char *a)
{
        if (mClass == NVC_READ_ONLY)
                return;
        BOOL b_changed = FALSE;

        switch(mType)
        {
        case NVT_ASSET:
                if (a)
                {
                        if (  (mClass == NVC_CALLBACK)
                                &&(strcmp(this->mNameValueReference.string,a)))
                        {
                                b_changed = TRUE;
                        }

                        if (mNameValueReference.string)
                        {
                                delete [] mNameValueReference.string;
                        }
                        mNameValueReference.string = new char [strlen(a) + 1];                  /* Flawfinder: ignore */
                        if(mNameValueReference.string != NULL)
                        {
                                strcpy(mNameValueReference.string,  a);         /* Flawfinder: ignore */
                        }
                        
                        if (b_changed)
                        {
                                callCallback();
                        }
                }
                else
                {
                        if (mNameValueReference.string)
                                delete [] mNameValueReference.string;

                        mNameValueReference.string = new char [1];
                        mNameValueReference.string[0] = 0;
                }
                break;
        default:
                break;
        }
        if (b_changed)
        {
                callCallback();
        }
}


void LLNameValue::setF32(const F32 a)
{
        if (mClass == NVC_READ_ONLY)
                return;
        BOOL b_changed = FALSE;

        switch(mType)
        {
        case NVT_F32:
                if (  (mClass == NVC_CALLBACK)
                        &&(*this->mNameValueReference.f32 != a))
                {
                        b_changed = TRUE;
                }
                *mNameValueReference.f32 = a;
                if (b_changed)
                {
                        callCallback();
                }
                break;
        default:
                break;
        }
        if (b_changed)
        {
                callCallback();
        }

        return;
}


void LLNameValue::setS32(const S32 a)
{
        if (mClass == NVC_READ_ONLY)
                return;
        BOOL b_changed = FALSE;

        switch(mType)
        {
        case NVT_S32:
                if (  (mClass == NVC_CALLBACK)
                        &&(*this->mNameValueReference.s32 != a))
                {
                        b_changed = TRUE;
                }
                *mNameValueReference.s32 = a;
                if (b_changed)
                {
                        callCallback();
                }
                break;
        case NVT_U32:
                if (  (mClass == NVC_CALLBACK)
                        && ((S32) (*this->mNameValueReference.u32) != a))
                {
                        b_changed = TRUE;
                }
                *mNameValueReference.u32 = a;
                if (b_changed)
                {
                        callCallback();
                }
                break;
        case NVT_F32:
                if (  (mClass == NVC_CALLBACK)
                        &&(*this->mNameValueReference.f32 != a))
                {
                        b_changed = TRUE;
                }
                *mNameValueReference.f32 = (F32)a;
                if (b_changed)
                {
                        callCallback();
                }
                break;
        default:
                break;
        }
        if (b_changed)
        {
                callCallback();
        }

        return;
}


void LLNameValue::setU32(const U32 a)
{
        if (mClass == NVC_READ_ONLY)
                return;
        BOOL b_changed = FALSE;

        switch(mType)
        {
        case NVT_S32:
                if (  (mClass == NVC_CALLBACK)
                        &&(*this->mNameValueReference.s32 != (S32) a))
                {
                        b_changed = TRUE;
                }
                *mNameValueReference.s32 = a;
                if (b_changed)
                {
                        callCallback();
                }
                break;
        case NVT_U32:
                if (  (mClass == NVC_CALLBACK)
                        &&(*this->mNameValueReference.u32 != a))
                {
                        b_changed = TRUE;
                }
                *mNameValueReference.u32 = a;
                if (b_changed)
                {
                        callCallback();
                }
                break;
        case NVT_F32:
                if (  (mClass == NVC_CALLBACK)
                        &&(*this->mNameValueReference.f32 != a))
                {
                        b_changed = TRUE;
                }
                *mNameValueReference.f32 = (F32)a;
                if (b_changed)
                {
                        callCallback();
                }
                break;
        default:
                llerrs << "NameValue: Trying to set U32 into a " << mStringType << ", unknown conversion" << llendl;
                break;
        }
        return;
}


void LLNameValue::setVec3(const LLVector3 &a)
{
        if (mClass == NVC_READ_ONLY)
                return;
        BOOL b_changed = FALSE;

        switch(mType)
        {
        case NVT_VEC3:
                if (  (mClass == NVC_CALLBACK)
                        &&(*this->mNameValueReference.vec3 != a))
                {
                        b_changed = TRUE;
                }
                *mNameValueReference.vec3 = a;
                if (b_changed)
                {
                        callCallback();
                }
                break;
        default:
                llerrs << "NameValue: Trying to set LLVector3 into a " << mStringType << ", unknown conversion" << llendl;
                break;
        }
        return;
}


BOOL LLNameValue::nonzero()
{
        switch(mType)
        {
        case NVT_STRING:
                if (!mNameValueReference.string)
                        return 0;
                return (mNameValueReference.string[0] != 0);
        case NVT_F32:
                return (*mNameValueReference.f32 != 0.f);
        case NVT_S32:
                return (*mNameValueReference.s32 != 0);
        case NVT_U32:
                return (*mNameValueReference.u32 != 0);
        case NVT_VEC3:
                return (mNameValueReference.vec3->magVecSquared() != 0.f);
        default:
                llerrs << "NameValue: Trying to call nonzero on a " << mStringType << ", unknown conversion" << llendl;
                break;
        }
        return FALSE;
}

std::string LLNameValue::printNameValue()
{
        std::string buffer;
        buffer = llformat("%s %s %s %s ", mName, mStringType, mStringClass, mStringSendto);
        buffer += printData();
//      llinfos << "Name Value Length: " << buffer.size() + 1 << llendl;
        return buffer;
}

std::string LLNameValue::printData()
{
        std::string buffer;
        switch(mType)
        {
        case NVT_STRING:
        case NVT_ASSET:
                buffer = mNameValueReference.string;
                break;
        case NVT_F32:
                buffer = llformat("%f", *mNameValueReference.f32);
                break;
        case NVT_S32:
                buffer = llformat("%d", *mNameValueReference.s32);
                break;
        case NVT_U32:
                buffer = llformat("%u", *mNameValueReference.u32);
                break;
        case NVT_U64:
                {
                        char u64_string[U64_BUFFER_LEN];        /* Flawfinder: ignore */
                        U64_to_str(*mNameValueReference.u64, u64_string, sizeof(u64_string));
                        buffer = u64_string;
                }
                break;
        case NVT_VEC3:
                buffer = llformat( "%f, %f, %f", mNameValueReference.vec3->mV[VX], mNameValueReference.vec3->mV[VY], mNameValueReference.vec3->mV[VZ]);
                break;
        default:
                llerrs << "Trying to print unknown NameValue type " << mStringType << llendl;
                break;
        }
        return buffer;
}

std::ostream&           operator<<(std::ostream& s, const LLNameValue &a)
{
        switch(a.mType)
        {
        case NVT_STRING:
        case NVT_ASSET:
                s << a.mNameValueReference.string;
                break;
        case NVT_F32:
                s << (*a.mNameValueReference.f32);
                break;
        case NVT_S32:
                s << *(a.mNameValueReference.s32);
                break;
        case NVT_U32:
                s << *(a.mNameValueReference.u32);
                break;
        case NVT_U64:
                {
                        char u64_string[U64_BUFFER_LEN];        /* Flawfinder: ignore */
                        U64_to_str(*a.mNameValueReference.u64, u64_string, sizeof(u64_string));
                        s << u64_string;
                }
        case NVT_VEC3:
                s << *(a.mNameValueReference.vec3);
                break;
        default:
                llerrs << "Trying to print unknown NameValue type " << a.mStringType << llendl;
                break;
        }
        return s;
}


// nota bene: return values aren't static for now to prevent memory leaks

LLNameValue     &operator+(const LLNameValue &a, const LLNameValue &b)
{
        static LLNameValue retval;

        switch(a.mType)
        {
        case NVT_STRING:
                if (b.mType == NVT_STRING)
                {
                        retval.mType = a.mType;
                        retval.mStringType = NameValueTypeStrings[a.mType];

                        S32 length1 = (S32)strlen(a.mNameValueReference.string);                /* Flawfinder: Ignore */
                        S32 length2 = (S32)strlen(b.mNameValueReference.string);                /* Flawfinder: Ignore */
                        delete [] retval.mNameValueReference.string;
                        retval.mNameValueReference.string = new char[length1 + length2 + 1];
                        if(retval.mNameValueReference.string != NULL)
                        {
                                strcpy(retval.mNameValueReference.string, a.mNameValueReference.string);        /* Flawfinder: Ignore */
                                strcat(retval.mNameValueReference.string, b.mNameValueReference.string);                /* Flawfinder: Ignore */
                        }
                }
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 + *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 + *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 + *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.s32 + *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 + *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 + *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.u32 + *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.u32 + *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_U32;
                        retval.mStringType = NameValueTypeStrings[NVT_U32];
                        delete retval.mNameValueReference.u32;
                        retval.mNameValueReference.u32 = new U32(*a.mNameValueReference.u32 + *b.mNameValueReference.u32);
                }
                break;
        case NVT_VEC3:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_VEC3))
                {
                        retval.mType = a.mType;
                        retval.mStringType = NameValueTypeStrings[a.mType];
                        delete retval.mNameValueReference.vec3;
                        retval.mNameValueReference.vec3 = new LLVector3(*a.mNameValueReference.vec3 + *b.mNameValueReference.vec3);
                }
                break;
        default:
                llerrs << "Unknown add of NV type " << a.mStringType << " to " << b.mStringType << llendl;
                break;
        }
        return retval;
}

LLNameValue     &operator-(const LLNameValue &a, const LLNameValue &b)
{
        static LLNameValue retval;

        switch(a.mType)
        {
        case NVT_STRING:
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 - *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 - *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 - *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.s32 - *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 - *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 - *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.u32 - *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.u32 - *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_U32;
                        retval.mStringType = NameValueTypeStrings[NVT_U32];
                        delete retval.mNameValueReference.u32;
                        retval.mNameValueReference.u32 = new U32(*a.mNameValueReference.u32 - *b.mNameValueReference.u32);
                }
                break;
        case NVT_VEC3:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_VEC3))
                {
                        retval.mType = a.mType;
                        retval.mStringType = NameValueTypeStrings[a.mType];
                        delete retval.mNameValueReference.vec3;
                        retval.mNameValueReference.vec3 = new LLVector3(*a.mNameValueReference.vec3 - *b.mNameValueReference.vec3);
                }
                break;
        default:
                llerrs << "Unknown subtract of NV type " << a.mStringType << " to " << b.mStringType << llendl;
                break;
        }
        return retval;
}

LLNameValue     &operator*(const LLNameValue &a, const LLNameValue &b)
{
        static LLNameValue retval;

        switch(a.mType)
        {
        case NVT_STRING:
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 * *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 * *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 * *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.s32 * *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 * *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 * *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.u32 * *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.u32 * *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_U32;
                        retval.mStringType = NameValueTypeStrings[NVT_U32];
                        delete retval.mNameValueReference.u32;
                        retval.mNameValueReference.u32 = new U32(*a.mNameValueReference.u32 * *b.mNameValueReference.u32);
                }
                break;
        case NVT_VEC3:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_VEC3))
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[a.mType];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32((*a.mNameValueReference.vec3) * (*b.mNameValueReference.vec3));
                }
                break;
        default:
                llerrs << "Unknown multiply of NV type " << a.mStringType << " to " << b.mStringType << llendl;
                break;
        }
        return retval;
}

LLNameValue     &operator/(const LLNameValue &a, const LLNameValue &b)
{
        static LLNameValue retval;

        switch(a.mType)
        {
        case NVT_STRING:
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 / *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 / *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 / *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.s32 / *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 / *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 / *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        retval.mType = NVT_F32;
                        retval.mStringType = NameValueTypeStrings[NVT_F32];
                        delete retval.mNameValueReference.f32;
                        retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.u32 / *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.u32 / *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_U32;
                        retval.mStringType = NameValueTypeStrings[NVT_U32];
                        delete retval.mNameValueReference.u32;
                        retval.mNameValueReference.u32 = new U32(*a.mNameValueReference.u32 / *b.mNameValueReference.u32);
                }
                break;
        default:
                llerrs << "Unknown divide of NV type " << a.mStringType << " to " << b.mStringType << llendl;
                break;
        }
        return retval;
}

LLNameValue     &operator%(const LLNameValue &a, const LLNameValue &b)
{
        static LLNameValue retval;

        switch(a.mType)
        {
        case NVT_STRING:
                break;
        case NVT_F32:
                break;
        case NVT_S32:
                if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 % *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.s32 % *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_S32)
                {
                        retval.mType = NVT_S32;
                        retval.mStringType = NameValueTypeStrings[NVT_S32];
                        delete retval.mNameValueReference.s32;
                        retval.mNameValueReference.s32 = new S32(*a.mNameValueReference.u32 % *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        retval.mType = NVT_U32;
                        retval.mStringType = NameValueTypeStrings[NVT_U32];
                        delete retval.mNameValueReference.u32;
                        retval.mNameValueReference.u32 = new U32(*a.mNameValueReference.u32 % *b.mNameValueReference.u32);
                }
                break;
        case NVT_VEC3:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_VEC3))
                {
                        retval.mType = a.mType;
                        retval.mStringType = NameValueTypeStrings[a.mType];
                        delete retval.mNameValueReference.vec3;
                        retval.mNameValueReference.vec3 = new LLVector3(*a.mNameValueReference.vec3 % *b.mNameValueReference.vec3);
                }
                break;
        default:
                llerrs << "Unknown % of NV type " << a.mStringType << " to " << b.mStringType << llendl;
                break;
        }
        return retval;
}


// Multiplying anything times a float gives you some floats
LLNameValue     &operator*(const LLNameValue &a, F32 k)
{
        static LLNameValue retval;

        switch(a.mType)
        {
        case NVT_STRING:
                break;
        case NVT_F32:
                retval.mType = NVT_F32;
                retval.mStringType = NameValueTypeStrings[NVT_F32];
                delete retval.mNameValueReference.f32;
                retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 * k);
                break;
        case NVT_S32:
                retval.mType = NVT_F32;
                retval.mStringType = NameValueTypeStrings[NVT_F32];
                delete retval.mNameValueReference.f32;
                retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.s32 * k);
                break;
        case NVT_U32:
                retval.mType = NVT_F32;
                retval.mStringType = NameValueTypeStrings[NVT_F32];
                delete retval.mNameValueReference.f32;
                retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.u32 * k);
                break;
        case NVT_VEC3:
                retval.mType = a.mType;
                retval.mStringType = NameValueTypeStrings[a.mType];
                delete retval.mNameValueReference.vec3;
                retval.mNameValueReference.vec3 = new LLVector3(*a.mNameValueReference.vec3 * k);
                break;
        default:
                llerrs << "Unknown multiply of NV type " << a.mStringType << " with F32" << llendl;
                break;
        }
        return retval;
}


LLNameValue     &operator*(F32 k, const LLNameValue &a)
{
        static LLNameValue retval;

        switch(a.mType)
        {
        case NVT_STRING:
                break;
        case NVT_F32:
                retval.mType = NVT_F32;
                retval.mStringType = NameValueTypeStrings[NVT_F32];
                delete retval.mNameValueReference.f32;
                retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.f32 * k);
                break;
        case NVT_S32:
                retval.mType = NVT_F32;
                retval.mStringType = NameValueTypeStrings[NVT_F32];
                delete retval.mNameValueReference.f32;
                retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.s32 * k);
                break;
        case NVT_U32:
                retval.mType = NVT_F32;
                retval.mStringType = NameValueTypeStrings[NVT_F32];
                delete retval.mNameValueReference.f32;
                retval.mNameValueReference.f32 = new F32(*a.mNameValueReference.u32 * k);
                break;
        case NVT_VEC3:
                retval.mType = a.mType;
                retval.mStringType = NameValueTypeStrings[a.mType];
                delete retval.mNameValueReference.vec3;
                retval.mNameValueReference.vec3 = new LLVector3(*a.mNameValueReference.vec3 * k);
                break;
        default:
                llerrs << "Unknown multiply of NV type " << a.mStringType << " with F32" << llendl;
                break;
        }
        return retval;
}


bool operator==(const LLNameValue &a, const LLNameValue &b)
{
        switch(a.mType)
        {
        case NVT_STRING:
                if (b.mType == NVT_STRING)
                {
                        if (!a.mNameValueReference.string)
                                return FALSE;
                        if (!b.mNameValueReference.string)
                                return FALSE;
                        return (!strcmp(a.mNameValueReference.string, b.mNameValueReference.string));
                }
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.f32 == *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.f32 == *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.f32 == *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.s32 == *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.s32 == *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.s32 == (S32) *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.u32 == *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return ((S32) *a.mNameValueReference.u32 == *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.u32 == *b.mNameValueReference.u32);
                }
                break;
        case NVT_VEC3:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_VEC3))
                {
                        return (*a.mNameValueReference.vec3 == *b.mNameValueReference.vec3);
                }
                break;
        default:
                llerrs << "Unknown == NV type " << a.mStringType << " with " << b.mStringType << llendl;
                break;
        }
        return FALSE;
}

bool operator<=(const LLNameValue &a, const LLNameValue &b)
{
        switch(a.mType)
        {
        case NVT_STRING:
                if (b.mType == NVT_STRING)
                {
                        S32 retval = strcmp(a.mNameValueReference.string, b.mNameValueReference.string);
                        return (retval <= 0);
                }
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.f32 <= *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.f32 <= *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.f32 <= *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.s32 <= *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.s32 <= *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.s32 <= (S32) *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.u32 <= *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return ((S32) *a.mNameValueReference.u32 <= *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.u32 <= *b.mNameValueReference.u32);
                }
                break;
        default:
                llerrs << "Unknown <= NV type " << a.mStringType << " with " << b.mStringType << llendl;
                break;
        }
        return FALSE;
}


bool                    operator>=(const LLNameValue &a, const LLNameValue &b)
{
        switch(a.mType)
        {
        case NVT_STRING:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_STRING))
                {
                        S32 retval = strcmp(a.mNameValueReference.string, b.mNameValueReference.string);
                        return (retval >= 0);
                }
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.f32 >= *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.f32 >= *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.f32 >= *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.s32 >= *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.s32 >= *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.s32 >= (S32) *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.u32 >= *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return ((S32) *a.mNameValueReference.u32 >= *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.u32 >= *b.mNameValueReference.u32);
                }
                break;
        default:
                llerrs << "Unknown >= NV type " << a.mStringType << " with " << b.mStringType << llendl;
                break;
        }
        return FALSE;
}


bool                    operator<(const LLNameValue &a, const LLNameValue &b)
{
        switch(a.mType)
        {
        case NVT_STRING:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_STRING))
                {
                        S32 retval = strcmp(a.mNameValueReference.string, b.mNameValueReference.string);
                        return (retval < 0);
                }
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.f32 < *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.f32 < *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.f32 < *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.s32 < *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.s32 < *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.s32 < (S32) *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.u32 < *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return ((S32) *a.mNameValueReference.u32 < *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.u32 < *b.mNameValueReference.u32);
                }
                break;
        default:
                llerrs << "Unknown < NV type " << a.mStringType << " with " << b.mStringType << llendl;
                break;
        }
        return FALSE;
}


bool                    operator>(const LLNameValue &a, const LLNameValue &b)
{
        switch(a.mType)
        {
        case NVT_STRING:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_STRING))
                {
                        S32 retval = strcmp(a.mNameValueReference.string, b.mNameValueReference.string);
                        return (retval > 0);
                }
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.f32 > *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.f32 > *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.f32 > *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.s32 > *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.s32 > *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.s32 > (S32) *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.u32 > *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return ((S32) *a.mNameValueReference.u32 > *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.u32 > *b.mNameValueReference.u32);
                }
                break;
        default:
                llerrs << "Unknown > NV type " << a.mStringType << " with " << b.mStringType << llendl;
                break;
        }
        return FALSE;
}

bool                    operator!=(const LLNameValue &a, const LLNameValue &b)
{
        switch(a.mType)
        {
        case NVT_STRING:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_STRING))
                {
                        return (strcmp(a.mNameValueReference.string, b.mNameValueReference.string)) ? true : false;
                }
                break;
        case NVT_F32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.f32 != *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.f32 != *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.f32 != *b.mNameValueReference.u32);
                }
                break;
        case NVT_S32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.s32 != *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return (*a.mNameValueReference.s32 != *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.s32 != (S32) *b.mNameValueReference.u32);
                }
                break;
        case NVT_U32:
                if (b.mType == NVT_F32)
                {
                        return (*a.mNameValueReference.u32 != *b.mNameValueReference.f32);
                }
                else if (b.mType == NVT_S32)
                {
                        return ((S32) *a.mNameValueReference.u32 != *b.mNameValueReference.s32);
                }
                else if (b.mType == NVT_U32)
                {
                        return (*a.mNameValueReference.u32 != *b.mNameValueReference.u32);
                }
                break;
        case NVT_VEC3:
                if (  (a.mType == b.mType)
                        &&(a.mType == NVT_VEC3))
                {
                        return (*a.mNameValueReference.vec3 != *b.mNameValueReference.vec3);
                }
                break;
        default:
                llerrs << "Unknown != NV type " << a.mStringType << " with " << b.mStringType << llendl;
                break;
        }
        return FALSE;
}


LLNameValue     &operator-(const LLNameValue &a)
{
        static LLNameValue retval;

        switch(a.mType)
        {
        case NVT_STRING:
                break;
        case NVT_F32:
                retval.mType = a.mType;
                retval.mStringType = NameValueTypeStrings[a.mType];
                delete retval.mNameValueReference.f32;
                retval.mNameValueReference.f32 = new F32(-*a.mNameValueReference.f32);
                break;
        case NVT_S32:
                retval.mType = a.mType;
                retval.mStringType = NameValueTypeStrings[a.mType];
                delete retval.mNameValueReference.s32;
                retval.mNameValueReference.s32 = new S32(-*a.mNameValueReference.s32);
                break;
        case NVT_U32:
                retval.mType = NVT_S32;
                retval.mStringType = NameValueTypeStrings[NVT_S32];
                delete retval.mNameValueReference.s32;
                // Can't do unary minus on U32, doesn't work.
                retval.mNameValueReference.s32 = new S32(-S32(*a.mNameValueReference.u32));
                break;
        case NVT_VEC3:
                retval.mType = a.mType;
                retval.mStringType = NameValueTypeStrings[a.mType];
                delete retval.mNameValueReference.vec3;
                retval.mNameValueReference.vec3 = new LLVector3(-*a.mNameValueReference.vec3);
                break;
        default:
                llerrs << "Unknown - NV type " << a.mStringType << llendl;
                break;
        }
        return retval;
}

---