libmesh5.c

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        if(kwd->fmt[i] == 'r')
        {
            if(InpMsh->ver == 1)
            {
                if(InpMsh->typ & Asc)
                    fscanf(InpMsh->hdl, "%f", &f);
                else
                    ScaWrd(InpMsh, (unsigned char *)&f);

                d = f;
            }
            else
            {
                if(InpMsh->typ & Asc)
                    fscanf(InpMsh->hdl, "%lf", &d);
                else
                    ScaDblWrd(InpMsh, (unsigned char *)&d);

                f = (float)d;
            }

            if(OutMsh->ver == 1)
                if(OutMsh->typ & Asc)
                    fprintf(OutMsh->hdl, "%g ", f);
                else
                    RecWrd(OutMsh, (unsigned char *)&f);
            else
                if(OutMsh->typ & Asc)
                    fprintf(OutMsh->hdl, "%.15g ", d);
                else
                    RecDblWrd(OutMsh, (unsigned char *)&d);
        }
        else
        {
            if(InpMsh->typ & Asc)
                fscanf(InpMsh->hdl, "%d", &a);
            else
                ScaWrd(InpMsh, (unsigned char *)&a);

            if(OutMsh->typ & Asc)
                fprintf(OutMsh->hdl, "%d ", a);
            else
                RecWrd(OutMsh, (unsigned char *)&a);
        }
    }

    if(OutMsh->typ & Asc)
        fprintf(OutMsh->hdl, "\n");
    return 0; 
}


/*----------------------------------------------------------*/
/* Find every kw present in a meshfile                        */
/*----------------------------------------------------------*/

static int ScaKwdTab(GmfMshSct *msh)
{
    int KwdCod, NexPos, CurPos, EndPos;
    char str[ GmfStrSiz ];

    if(msh->typ & Asc)
    {
        /* Scan each string in the file until the end */

        while(fscanf(msh->hdl, "%s", str) != EOF)
        {
            /* Fast test in order to reject quickly the numeric values */

            if(isalpha(str[0]))
            {
                /* Search which kwd code this string is associated with, 
                    then get its header and save the curent position in file (just before the data) */

                for(KwdCod=1; KwdCod<= GmfMaxKwd; KwdCod++)
                    if(!strcmp(str, KwdFmt[ KwdCod ][0]))
                    {
                        ScaKwdHdr(msh, KwdCod);
                        break;
                    }
            }
            else if(str[0] == '#')
                while(fgetc(msh->hdl) != '\n');
        }
    }
    else
    {
        /* Get file size */

        CurPos = ftell(msh->hdl);
        fseek(msh->hdl, 0, SEEK_END);
        EndPos = ftell(msh->hdl);
        fseek(msh->hdl, CurPos, SEEK_SET);

        /* Jump through kwd positions in the file */

        do
        {
            /* Get the kwd code and the next kwd position */

            ScaWrd(msh, (unsigned char *)&KwdCod);
            ScaWrd(msh, (unsigned char *)&NexPos);

            if(NexPos > EndPos)
                return(0);

            /* Check if this kwd belongs to this mesh version */

            if( (KwdCod >= 1) && (KwdCod <= GmfMaxKwd) )
                ScaKwdHdr(msh, KwdCod);

            /* Go to the next kwd */

            if(NexPos)
                fseek(msh->hdl, NexPos, SEEK_SET);
        }while(NexPos && (KwdCod != GmfEnd));
    }

    return(1);
}


/*----------------------------------------------------------*/
/* Read and setup the keyword's header                        */
/*----------------------------------------------------------*/

static void ScaKwdHdr(GmfMshSct *msh, int KwdCod)
{
    int i;
    KwdSct *kwd = &msh->KwdTab[ KwdCod ];

    if(!strcmp("i", KwdFmt[ KwdCod ][1]))
    {
        if(msh->typ & Asc)
            fscanf(msh->hdl, "%d", &kwd->NmbLin);
        else
            ScaWrd(msh, (unsigned char *)&kwd->NmbLin);
    }
    else
        kwd->NmbLin = 1;

    if(!strcmp("sr", KwdFmt[ KwdCod ][2]))
    {
        if(msh->typ & Asc)
        {
            fscanf(msh->hdl, "%d", &kwd->NmbTyp);

            for(i=0;i<kwd->NmbTyp;i++)
                fscanf(msh->hdl, "%d", &kwd->TypTab[i]);
        }
        else
        {
            ScaWrd(msh, (unsigned char *)&kwd->NmbTyp);

            for(i=0;i<kwd->NmbTyp;i++)
                ScaWrd(msh, (unsigned char *)&kwd->TypTab[i]);
        }
    }

    ExpFmt(msh, KwdCod);
    kwd->pos = ftell(msh->hdl);
}


/*----------------------------------------------------------*/
/* Expand the compacted format and compute the line size    */
/*----------------------------------------------------------*/

static void ExpFmt(GmfMshSct *msh, int KwdCod)
{
    int i, j, TmpSiz=0;
    char chr, *InpFmt = KwdFmt[ KwdCod ][2];
    KwdSct *kwd = &msh->KwdTab[ KwdCod ];

    /* Set the kwd's type */

    if(!strlen(KwdFmt[ KwdCod ][1]))
        kwd->typ = InfKwd;
    else if(!strcmp(InpFmt, "sr"))
        kwd->typ = SolKwd;
    else
        kwd->typ = RegKwd;

    /* Get the solution-field's size */

    if(kwd->typ == SolKwd)
        for(i=0;i<kwd->NmbTyp;i++)
            switch(kwd->TypTab[i])
            {
                case GmfSca    : TmpSiz += 1; break;
                case GmfVec    : TmpSiz += msh->dim; break;
                case GmfSymMat : TmpSiz += (msh->dim * (msh->dim+1)) / 2; break;
                case GmfMat    : TmpSiz += msh->dim * msh->dim; break;
            }

    /* Scan each character from the format string */

    i = 0;

    while(i < strlen(InpFmt))
    {
        chr = InpFmt[ i++ ];

        if(chr == 'd')
        {
            chr = InpFmt[i++];

            for(j=0;j<msh->dim;j++)
                kwd->fmt[ kwd->SolSiz++ ] = chr;
        }
        else if(chr == 's')
        {
            chr = InpFmt[i++];

            for(j=0;j<TmpSiz;j++)
                kwd->fmt[ kwd->SolSiz++ ] = chr;
        }
        else
            kwd->fmt[ kwd->SolSiz++ ] = chr;
    }
}


/*----------------------------------------------------------*/
/* Read a four bytes word in a mesh file                    */
/*----------------------------------------------------------*/

static void ScaWrd(GmfMshSct *msh, unsigned char *wrd)
{
    unsigned char swp;

    fread(wrd, WrdSiz, 1, msh->hdl);

    if(msh->cod == 1)
        return;

    swp = wrd[3];
    wrd[3] = wrd[0];
    wrd[0] = swp;

    swp = wrd[2];
    wrd[2] = wrd[1];
    wrd[1] = swp;
}


/*----------------------------------------------------------*/
/* Read an eight bytes word in a mesh file                    */
/*----------------------------------------------------------*/

static void ScaDblWrd(GmfMshSct *msh, unsigned char *wrd)
{
    int i;
    unsigned char swp;

    fread(wrd, WrdSiz, 2, msh->hdl);

    if(msh->cod == 1)
        return;

    for(i=0;i<4;i++)
    {
        swp = wrd[7-i];
        wrd[7-i] = wrd[i];
        wrd[i] = swp;
    }
}


/*----------------------------------------------------------*/
/* Write a four bytes word in a mesh file                    */
/*----------------------------------------------------------*/

static void RecWrd(GmfMshSct *msh, unsigned char *wrd)
{
    fwrite(wrd, WrdSiz, 1, msh->hdl);
}


/*----------------------------------------------------------*/
/* Write an eight bytes word in a mesh file                    */
/*----------------------------------------------------------*/

static void RecDblWrd(GmfMshSct *msh, unsigned char *wrd)
{
    fwrite(wrd, WrdSiz, 2, msh->hdl);
}


/*----------------------------------------------------------*/
/* Fortran 77 API                                            */
/*----------------------------------------------------------*/

int call(gmfopenmeshf77)(char *FilNam, int *mod, int *ver, int *dim, int StrSiz)
{
    int  i;
    char TmpNam[ GmfStrSiz ];

    for(i=0;i<StrSiz;i++)
        TmpNam[i] = FilNam[i];

    TmpNam[ StrSiz ] = 0;

    if(*mod == GmfRead)
        return(GmfOpenMesh(TmpNam, *mod, ver, dim));
    else
        return(GmfOpenMesh(TmpNam, *mod, *ver, *dim));
}

int call(gmfclosemeshf77)(int *idx)
{
    return(GmfCloseMesh(*idx));
}

int call(gmfstatkwdf77)(int *MshIdx, int *KwdIdx, int *NmbTyp, int *SolSiz, int *TypTab)
{
    if(!strcmp(KwdFmt[ *KwdIdx ][2], "sr"))
        return(GmfStatKwd(*MshIdx, *KwdIdx, NmbTyp, SolSiz, TypTab));
    else
        return(GmfStatKwd(*MshIdx, *KwdIdx));
}

int call(gmfgotokwdf77)(int *MshIdx, int *KwdIdx)
{
    return(GmfGotoKwd(*MshIdx, *KwdIdx));
}

int call(gmfsetkwdf77)(int *MshIdx, int *KwdIdx, int *NmbLin, int *NmbTyp, int *TypTab)
{
    if(!strcmp(KwdFmt[ *KwdIdx ][2], "sr"))
        return(GmfSetKwd(*MshIdx, *KwdIdx, *NmbLin, *NmbTyp, TypTab));
    else if(strlen(KwdFmt[ *KwdIdx ][1]))
        return(GmfSetKwd(*MshIdx, *KwdIdx, *NmbLin));
    else
        return(GmfSetKwd(*MshIdx, *KwdIdx));
}

int call(gmfgetvertex2df77)(int *MshIdx, float *x, float *y, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfVertices, x, y, ref));
}

int call(gmfgetvertex3df77)(int *MshIdx, float *x, float *y, float *z, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfVertices, x, y, z, ref));
}

int call(gmfsetvertex2df77)(int *MshIdx, float *x, float *y, int *ref)
{
    return(GmfSetLin(*MshIdx, GmfVertices, *x, *y, *ref));
}

int call(gmfsetvertex3df77)(int *MshIdx, float *x, float *y, float *z, int *ref)
{
    return(GmfSetLin(*MshIdx, GmfVertices, *x, *y, *z, *ref));
}

int call(gmfgettrianglef77)(int *MshIdx, int *p1, int *p2, int *p3, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfTriangles, p1, p2, p3, ref));
}

int call(gmfsettrianglef77)(int *MshIdx, int *p1, int *p2, int *p3, int *ref)
{
    return(GmfSetLin(*MshIdx, GmfTriangles, *p1, *p2, *p3, *ref));
}

int call(gmfgettetrahedronf77)(int *MshIdx, int *p1, int *p2, int *p3, int *p4, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfTetrahedra, p1, p2, p3, p4, ref));
}

int call(gmfsettetrahedronf77)(int *MshIdx, int *p1, int *p2, int *p3, int *p4, int *ref)
{
    return(GmfSetLin(*MshIdx, GmfTetrahedra, *p1, *p2, *p3, *p4, *ref));
}

int call(gmfgetedgef77)(int *MshIdx, int *p1, int *p2, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfEdges, p1, p2, ref));
}

int call(gmfsetedgef77)(int *MshIdx, int *p1, int *p2, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfEdges, *p1, *p2, *ref));
}

int call(gmfgetquadrilateralf77)(int *MshIdx, int *p1, int *p2, int *p3, int *p4, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfQuadrilaterals, p1, p2, p3, p4, ref));
}

int call(gmfsetquadrilateralf77)(int *MshIdx, int *p1, int *p2, int *p3, int *p4, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfQuadrilaterals, *p1, *p2, *p3, *p4, *ref));
}

int call(gmfgethexahedronf77)(int *MshIdx, int *p1, int *p2, int *p3, int *p4, int *p5, int *p6, int *p7, int *p8, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfHexahedra, p1, p2, p3, p4, p5, p6, p7, p8, ref));
}

int call(gmfsethexahedronf77)(int *MshIdx, int *p1, int *p2, int *p3, int *p4, int *p5, int *p6, int *p7, int *p8, int *ref)
{
    return(GmfGetLin(*MshIdx, GmfHexahedra, *p1, *p2, *p3, *p4, *p5, *p6, *p7, *p8, *ref));
}