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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2009-2010 - DIGITEO - Scilab Consortium Operational Team
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
*
*/
#include "stack-c.h"
#include "Scierror.h"
#include "localization.h"
#include "sciprint.h"
#include "api_scilab.h"
#include "MALLOC.h"
int read_string(char *fname,unsigned long fname_len)
{
SciErr sciErr;
int i,j;
int iLen = 0;
//variable info
int iRows = 0;
int iCols = 0;
int* piAddr = NULL;
int* piLen = NULL;
char** pstData = NULL;
//output variable
int iRowsOut = 1;
int iColsOut = 1;
char* pstOut = NULL;
//check input and output arguments
CheckRhs(1,1);
CheckLhs(1,1);
//get variable address
sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//fisrt call to retrieve dimensions
sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, NULL, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
piLen = (int*)malloc(sizeof(int) * iRows * iCols);
//second call to retrieve length of each string
sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, piLen, NULL);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
pstData = (char**)malloc(sizeof(char*) * iRows * iCols);
for(i = 0 ; i < iRows * iCols ; i++)
{
pstData[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
}
//third call to retrieve data
sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, piLen, pstData);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//computer length of all strings
for(i = 0 ; i < iRows * iCols ; i++)
{
iLen += piLen[i];
}
//alloc output variable
pstOut = (char*)malloc(sizeof(char) * (iLen + iRows * iCols));
//initialize string to 0x00
memset(pstOut, 0x00, sizeof(char) * (iLen + iRows * iCols));
//concat input strings in output string
for(i = 0 ; i < iRows ; i++)
{
for(j = 0 ; j < iCols ; j++)
{
int iCurLen = strlen(pstOut);
if(iCurLen)
{
strcat(pstOut, " ");
}
strcpy(pstOut + strlen(pstOut), pstData[j * iRows + i]);
}
}
//create new variable
sciErr = createMatrixOfString(pvApiCtx, Rhs + 1, iRowsOut, iColsOut, &pstOut);
if(sciErr.iErr)
{
printError(&sciErr, 0);
return 0;
}
//free memory
free(piLen);
for(i = 0 ; i < iRows * iCols ; i++)
{
free(pstData[i]);
}
free(pstData);
free(pstOut);
LhsVar(1) = Rhs + 1;
return 0;
}
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