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ModelicaIO.c
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ModelicaIO.c
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/* ModelicaIO.c - Array I/O functions
Copyright (C) 2016-2024, Modelica Association and contributors
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* Definition of interface to external functions for array I/O
in the Modelica Standard Library:
Modelica.Utilities.Streams.readMatrixSize
Modelica.Utilities.Streams.readRealMatrix
Modelica.Utilities.Streams.writeRealMatrix
Changelog:
Nov. 27, 2021: by Thomas Beutlich
Fixed error handling for invalid format specifier in
text file (ticket #3903)
Dec. 22, 2020: by Thomas Beutlich
Added reading of CSV files (ticket #1153)
July 08, 2020: by Thomas Beutlich
Improved error message if reading text file with zero bytes
(ticket #3603)
Jan. 15, 2018: by Thomas Beutlich, ESI ITI GmbH
Added support to ignore UTF-8 BOM if reading text file
(ticket #2404)
Apr. 12, 2017: by Thomas Beutlich, ESI ITI GmbH
Improved error messages if reading struct arrays from
MATLAB MAT-file fails (ticket #2105)
Mar. 08, 2017: by Thomas Beutlich, ESI ITI GmbH
Added ModelicaIO_readRealTable from ModelicaStandardTables
(ticket #2192)
Feb. 07, 2017: by Thomas Beutlich, ESI ITI GmbH
Added support for reading integer and single-precision
variable classes of MATLAB MAT-files (ticket #2106)
Jan. 31, 2017: by Thomas Beutlich, ESI ITI GmbH
Added diagnostic message for (supported) partial read of table
from a text file (ticket #2151)
Jan. 07, 2017: by Thomas Beutlich, ESI ITI GmbH
Replaced strtok by re-entrant string tokenize function
(ticket #1153)
Nov. 23, 2016: by Martin Sjoelund, SICS East Swedish ICT AB
Added NO_LOCALE define flag, in case the OS does
not have this (for example when using GCC compiler,
but not libc). Also added autoconf detection for
this flag, NO_PID, NO_TIME, and NO_FILE_SYSTEM
Nov. 21, 2016: by Thomas Beutlich, ESI ITI GmbH
Fixed error handling if a variable cannot be found in a
MATLAB MAT-file (ticket #2119)
Mar. 03, 2016: by Thomas Beutlich, ITI GmbH and Martin Otter, DLR
Implemented a first version (ticket #1856)
*/
#if defined(__gnu_linux__) && !defined(NO_FILE_SYSTEM)
#define _GNU_SOURCE 1
#endif
#include "ModelicaIO.h"
#include <string.h>
#include "ModelicaUtilities.h"
#ifdef NO_FILE_SYSTEM
/*
ModelicaNotExistError never returns to the caller. In order to compile
external Modelica C-code in most compilers, noreturn attributes need to
be present to avoid warnings or errors.
The following macros handle noreturn attributes according to the
C11/C++11 standard with fallback to GNU, Clang or MSVC extensions if using
an older compiler.
*/
#undef MODELICA_NORETURN
#undef MODELICA_NORETURNATTR
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
#define MODELICA_NORETURN _Noreturn
#define MODELICA_NORETURNATTR
#elif defined(__cplusplus) && __cplusplus >= 201103L
#if (defined(__GNUC__) && __GNUC__ >= 5) || \
(defined(__GNUC__) && defined(__GNUC_MINOR__) && __GNUC__ == 4 && __GNUC_MINOR__ >= 8)
#define MODELICA_NORETURN [[noreturn]]
#define MODELICA_NORETURNATTR
#elif (defined(__GNUC__) && __GNUC__ >= 3) || \
(defined(__GNUC__) && defined(__GNUC_MINOR__) && __GNUC__ == 2 && __GNUC_MINOR__ >= 8)
#define MODELICA_NORETURN
#define MODELICA_NORETURNATTR __attribute__((noreturn))
#elif defined(__GNUC__)
#define MODELICA_NORETURN
#define MODELICA_NORETURNATTR
#else
#define MODELICA_NORETURN [[noreturn]]
#define MODELICA_NORETURNATTR
#endif
#elif defined(__clang__)
/* Encapsulated for Clang since GCC fails to process __has_attribute */
#if __has_attribute(noreturn)
#define MODELICA_NORETURN
#define MODELICA_NORETURNATTR __attribute__((noreturn))
#else
#define MODELICA_NORETURN
#define MODELICA_NORETURNATTR
#endif
#elif (defined(__GNUC__) && __GNUC__ >= 3) || \
(defined(__GNUC__) && defined(__GNUC_MINOR__) && __GNUC__ == 2 && __GNUC_MINOR__ >= 8) || \
(defined(__SUNPRO_C) && __SUNPRO_C >= 0x5110)
#define MODELICA_NORETURN
#define MODELICA_NORETURNATTR __attribute__((noreturn))
#elif (defined(_MSC_VER) && _MSC_VER >= 1200) || \
defined(__BORLANDC__)
#define MODELICA_NORETURN __declspec(noreturn)
#define MODELICA_NORETURNATTR
#else
#define MODELICA_NORETURN
#define MODELICA_NORETURNATTR
#endif
MODELICA_NORETURN static void ModelicaNotExistError(const char* name) MODELICA_NORETURNATTR;
static void ModelicaNotExistError(const char* name) {
/* Print error message if a function is not implemented */
ModelicaFormatError("C-Function \"%s\" is called "
"but is not implemented for the actual environment "
"(e.g., because there is no file system available on the machine "
"as for dSPACE or xPC systems)\n", name);
}
#undef MODELICA_NORETURN
#undef MODELICA_NORETURNATTR
void ModelicaIO_readMatrixSizes(_In_z_ const char* fileName,
_In_z_ const char* matrixName, _Out_ int* dim) {
ModelicaNotExistError("ModelicaIO_readMatrixSizes"); }
void ModelicaIO_readRealMatrix(_In_z_ const char* fileName,
_In_z_ const char* matrixName, _Out_ double* matrix, size_t m, size_t n,
int verbose) {
ModelicaNotExistError("ModelicaIO_readRealMatrix"); }
int ModelicaIO_writeRealMatrix(_In_z_ const char* fileName,
_In_z_ const char* matrixName, _In_ const double* matrix, size_t m, size_t n,
int append, _In_z_ const char* version) {
ModelicaNotExistError("ModelicaIO_writeRealMatrix"); return 0; }
double* ModelicaIO_readRealTable(_In_z_ const char* fileName,
_In_z_ const char* matrixName, _Out_ size_t* m, _Out_ size_t* n,
int verbose) {
ModelicaNotExistError("ModelicaIO_readRealTable"); return NULL; }
#else
#include <stdio.h>
#if !defined(NO_LOCALE)
#include <locale.h>
#endif
#include "ModelicaMatIO.h"
/* The standard way to detect POSIX is to check _POSIX_VERSION,
* which is defined in <unistd.h>
*/
#if defined(__unix__) || defined(__linux__) || defined(__APPLE_CC__)
#include <unistd.h>
#endif
#if !defined(_POSIX_) && defined(_POSIX_VERSION)
#define _POSIX_ 1
#endif
/* Use re-entrant string tokenize function if available */
#if defined(_POSIX_)
#elif defined(_MSC_VER) && _MSC_VER >= 1400
#define strtok_r(str, delim, saveptr) strtok_s((str), (delim), (saveptr))
#else
#define strtok_r(str, delim, saveptr) strtok((str), (delim))
#endif
#if !defined(LINE_BUFFER_LENGTH)
#define LINE_BUFFER_LENGTH (64)
#endif
#if !defined(MATLAB_NAME_LENGTH_MAX)
#define MATLAB_NAME_LENGTH_MAX (64)
#endif
typedef struct MatIO {
mat_t* mat; /* Pointer to MAT-file */
matvar_t* matvar; /* Pointer to MAT-file variable for data */
matvar_t* matvarRoot; /* Pointer to MAT-file variable for free */
} MatIO;
static double* readMatTable(_In_z_ const char* fileName, _In_z_ const char* tableName,
_Out_ size_t* m, _Out_ size_t* n) MODELICA_NONNULLATTR;
/* Read a table from a MATLAB MAT-file using MatIO functions
<- RETURN: Pointer to array (row-wise storage) of table values
*/
static void readMatIO(_In_z_ const char* fileName, _In_z_ const char* matrixName,
_Inout_ MatIO* matio);
/* Read a variable from a MATLAB MAT-file using MatIO functions */
static void readRealMatIO(_In_z_ const char* fileName, _In_z_ const char* matrixName,
_Inout_ MatIO* matio);
/* Read a real variable from a MATLAB MAT-file using MatIO functions */
static double* readCsvTable(_In_z_ const char* fileName, _In_z_ const char* tableName,
_Out_ size_t* m, _Out_ size_t* n, _In_z_ const char* delimiter,
int nHeaderLines) MODELICA_NONNULLATTR;
/* Read a table from a CSV file
<- RETURN: Pointer to array (row-wise storage) of table values
*/
static double* readTxtTable(_In_z_ const char* fileName, _In_z_ const char* tableName,
_Out_ size_t* m, _Out_ size_t* n) MODELICA_NONNULLATTR;
/* Read a table from a text file
<- RETURN: Pointer to array (row-wise storage) of table values
*/
static int readLine(_In_ char** buf, _In_ int* bufLen, _In_ FILE* fp) MODELICA_NONNULLATTR;
/* Read line (of unknown and arbitrary length) from a text file */
static int IsNumber(char* token);
/* Check, whether a token represents a floating-point number */
static void transpose(_Inout_ double* table, size_t nRow, size_t nCol) MODELICA_NONNULLATTR;
/* Cycle-based in-place array transposition */
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wtautological-compare"
#endif
void ModelicaIO_readMatrixSizes(_In_z_ const char* fileName,
_In_z_ const char* matrixName,
_Out_ int* dim) {
MatIO matio = {NULL, NULL, NULL};
dim[0] = 0;
dim[1] = 0;
readRealMatIO(fileName, matrixName, &matio);
if (NULL != matio.matvar) {
matvar_t* matvar = matio.matvar;
dim[0] = (int)matvar->dims[0];
dim[1] = (int)matvar->dims[1];
}
Mat_VarFree(matio.matvarRoot);
(void)Mat_Close(matio.mat);
}
void ModelicaIO_readRealMatrix(_In_z_ const char* fileName,
_In_z_ const char* matrixName,
_Inout_ double* matrix, size_t m, size_t n,
int verbose) {
MatIO matio = {NULL, NULL, NULL};
int readError = 0;
if (verbose == 1) {
/* Print info message, that matrix / file is loading */
ModelicaFormatMessage("... loading \"%s\" from \"%s\"\n",
matrixName, fileName);
}
readRealMatIO(fileName, matrixName, &matio);
if (NULL != matio.matvar) {
matvar_t* matvar = matio.matvar;
/* Check if number of rows matches */
if (m != matvar->dims[0]) {
Mat_VarFree(matio.matvarRoot);
(void)Mat_Close(matio.mat);
ModelicaFormatError(
"Cannot read %lu rows of array \"%s(%lu,%lu)\" "
"from file \"%s\"\n", (unsigned long)m, matrixName,
(unsigned long)matvar->dims[0], (unsigned long)matvar->dims[1],
fileName);
return;
}
/* Check if number of columns matches */
if (n != matvar->dims[1]) {
Mat_VarFree(matio.matvarRoot);
(void)Mat_Close(matio.mat);
ModelicaFormatError(
"Cannot read %lu columns of array \"%s(%lu,%lu)\" "
"from file \"%s\"\n", (unsigned long)n, matrixName,
(unsigned long)matvar->dims[0], (unsigned long)matvar->dims[1],
fileName);
return;
}
{
int start[2] = {0, 0};
int stride[2] = {1, 1};
int edge[2];
edge[0] = (int)matvar->dims[0];
edge[1] = (int)matvar->dims[1];
readError = Mat_VarReadData(matio.mat, matvar, matrix, start, stride, edge);
}
}
Mat_VarFree(matio.matvarRoot);
(void)Mat_Close(matio.mat);
if (readError == 0 && NULL != matrix) {
/* Array is stored column-wise -> need to transpose */
transpose(matrix, m, n);
}
else {
ModelicaFormatError(
"Error when reading numeric data of matrix \"%s(%lu,%lu)\" "
"from file \"%s\"\n", matrixName, (unsigned long)m,
(unsigned long)n, fileName);
}
}
int ModelicaIO_writeRealMatrix(_In_z_ const char* fileName,
_In_z_ const char* matrixName,
_In_ const double* matrix, size_t m, size_t n,
int append,
_In_z_ const char* version) {
int status;
mat_t* mat;
matvar_t* matvar;
size_t dims[2];
double* aT;
enum mat_ft matv;
enum matio_compression matc;
if ((0 != strcmp(version, "4")) && (0 != strcmp(version, "6")) && (0 != strcmp(version, "7")) && (0 != strcmp(version, "7.3"))) {
ModelicaFormatError("Invalid version %s for file \"%s\"\n", version, fileName);
return 0;
}
if (0 == strcmp(version, "4")) {
matv = MAT_FT_MAT4;
matc = MAT_COMPRESSION_NONE;
}
else if (0 == strcmp(version, "7.3")) {
matv = MAT_FT_MAT73;
matc = MAT_COMPRESSION_ZLIB;
}
else if (0 == strcmp(version, "7")) {
matv = MAT_FT_MAT5;
matc = MAT_COMPRESSION_ZLIB;
}
else {
matv = MAT_FT_MAT5;
matc = MAT_COMPRESSION_NONE;
}
if (append == 0) {
mat = Mat_CreateVer(fileName, NULL, matv);
if (NULL == mat) {
ModelicaFormatError("Not possible to newly create file \"%s\"\n(maybe version 7.3 not supported)\n", fileName);
return 0;
}
} else {
mat = Mat_Open(fileName, (int)MAT_ACC_RDWR | matv);
if (NULL == mat) {
ModelicaFormatError("Not possible to open file \"%s\"\n", fileName);
return 0;
}
}
/* MAT file array is stored column-wise -> need to transpose */
aT = (double*)malloc(m*n*sizeof(double));
if (NULL == aT) {
(void)Mat_Close(mat);
ModelicaError("Memory allocation error\n");
return 0;
}
memcpy(aT, matrix, m*n*sizeof(double));
transpose(aT, n, m);
if (append != 0) {
(void)Mat_VarDelete(mat, matrixName);
}
dims[0] = m;
dims[1] = n;
matvar = Mat_VarCreate(matrixName, MAT_C_DOUBLE, MAT_T_DOUBLE, 2, dims, aT, MAT_F_DONT_COPY_DATA);
status = Mat_VarWrite(mat, matvar, matc);
Mat_VarFree(matvar);
(void)Mat_Close(mat);
free(aT);
if (status != 0) {
ModelicaFormatError("Cannot write variable \"%s\" to \"%s\"\n", matrixName, fileName);
return 0;
}
return 1;
}
double* ModelicaIO_readRealTable(_In_z_ const char* fileName,
_In_z_ const char* tableName,
_Out_ size_t* m, _Out_ size_t* n,
int verbose) {
return ModelicaIO_readRealTable2(fileName, tableName, m, n, verbose, ",", 0);
}
double* ModelicaIO_readRealTable2(_In_z_ const char* fileName,
_In_z_ const char* tableName,
_Out_ size_t* m, _Out_ size_t* n,
int verbose, _In_z_ const char* delimiter,
int nHeaderLines) {
double* table;
const char* ext;
int isMatExt = 0;
int isCsvExt = 0;
/* Table file can be either text or binary MATLAB MAT-file */
ext = strrchr(fileName, '.');
if (NULL != ext) {
if (0 == strncmp(ext, ".mat", 4) ||
0 == strncmp(ext, ".MAT", 4)) {
isMatExt = 1;
}
else if (0 == strncmp(ext, ".csv", 4) ||
0 == strncmp(ext, ".CSV", 4)) {
isCsvExt = 1;
if (strlen(delimiter) != 1) {
ModelicaFormatError("Invalid column delimiter \"%s\", must be a single character.\n", delimiter);
return NULL;
}
}
}
if (verbose == 1) {
/* Print info message, that table / file is loading */
ModelicaFormatMessage("... loading \"%s\" from \"%s\"\n",
tableName, fileName);
}
if (isMatExt == 1) {
table = readMatTable(fileName, tableName, m, n);
}
else if (isCsvExt == 1) {
table = readCsvTable(fileName, tableName, m, n, delimiter, nHeaderLines);
}
else {
table = readTxtTable(fileName, tableName, m, n);
}
return table;
}
void ModelicaIO_freeRealTable(double* table) {
free(table);
}
static double* readMatTable(_In_z_ const char* fileName, _In_z_ const char* tableName,
_Out_ size_t* m, _Out_ size_t* n) {
double* table = NULL;
MatIO matio = {NULL, NULL, NULL};
int readError = 0;
*m = 0;
*n = 0;
readRealMatIO(fileName, tableName, &matio);
if (NULL != matio.matvar) {
matvar_t* matvar = matio.matvar;
table = (double*)malloc(matvar->dims[0]*matvar->dims[1]*sizeof(double));
if (NULL == table) {
Mat_VarFree(matio.matvarRoot);
(void)Mat_Close(matio.mat);
ModelicaError("Memory allocation error\n");
return NULL;
}
{
int start[2] = {0, 0};
int stride[2] = {1, 1};
int edge[2];
edge[0] = (int)matvar->dims[0];
edge[1] = (int)matvar->dims[1];
readError = Mat_VarReadData(matio.mat, matvar, table, start, stride, edge);
*m = matvar->dims[0];
*n = matvar->dims[1];
}
}
Mat_VarFree(matio.matvarRoot);
(void)Mat_Close(matio.mat);
if (readError == 0 && NULL != table) {
/* Array is stored column-wise -> need to transpose */
transpose(table, *m, *n);
}
else {
size_t dim[2];
dim[0] = *m;
dim[1] = *n;
*m = 0;
*n = 0;
free(table);
table = NULL;
ModelicaFormatError(
"Error when reading numeric data of matrix \"%s(%lu,%lu)\" "
"from file \"%s\"\n", tableName, (unsigned long)dim[0],
(unsigned long)dim[1], fileName);
}
return table;
}
static void readMatIO(_In_z_ const char* fileName,
_In_z_ const char* matrixName, _Inout_ MatIO* matio) {
mat_t* mat;
matvar_t* matvar;
matvar_t* matvarRoot;
char* matrixNameCopy;
char* token;
#if defined(_POSIX_) || (defined(_MSC_VER) && _MSC_VER >= 1400)
char* nextToken = NULL;
#endif
char* prevToken;
int err = 0;
mat = Mat_Open(fileName, (int)MAT_ACC_RDONLY);
if (NULL == mat) {
ModelicaFormatError("Not possible to open file \"%s\": "
"No such file or directory\n", fileName);
return;
}
matrixNameCopy = (char*)malloc((strlen(matrixName) + 1) * sizeof(char));
if (NULL != matrixNameCopy) {
strcpy(matrixNameCopy, matrixName);
}
else {
(void)Mat_Close(mat);
ModelicaError("Memory allocation error\n");
return;
}
token = strtok_r(matrixNameCopy, ".", &nextToken);
matvarRoot = Mat_VarReadInfo(mat, NULL == token ? matrixName : token);
if (NULL == matvarRoot) {
(void)Mat_Close(mat);
if (NULL == token) {
free(matrixNameCopy);
ModelicaFormatError(
"Variable \"%s\" not found in file \"%s\".\n",
matrixName, fileName);
}
else {
char matrixNameBuf[MATLAB_NAME_LENGTH_MAX];
char dots[4];
if (strlen(token) > MATLAB_NAME_LENGTH_MAX - 1) {
strncpy(matrixNameBuf, token, MATLAB_NAME_LENGTH_MAX - 1);
matrixNameBuf[MATLAB_NAME_LENGTH_MAX - 1] = '\0';
strcpy(dots, "...");
}
else {
strcpy(matrixNameBuf, token);
dots[0] = '\0';
}
free(matrixNameCopy);
ModelicaFormatError(
"Variable \"%s%s\" not found in file \"%s\".\n",
matrixNameBuf, dots, fileName);
}
return;
}
matvar = matvarRoot;
prevToken = token;
token = strtok_r(NULL, ".", &nextToken);
/* Get field while matvar is of struct class and of 1x1 size */
while (NULL != token && NULL != matvar) {
if (matvar->class_type == MAT_C_STRUCT && matvar->rank == 2 &&
matvar->dims[0] == 1 && matvar->dims[1] == 1) {
matvar = Mat_VarGetStructField(matvar, (void*)token, MAT_BY_NAME, 0);
token = strtok_r(NULL, ".", &nextToken);
}
else if (matvar->class_type != MAT_C_STRUCT) {
err = 1;
matvar = NULL;
break;
}
else if (matvar->rank != 2) {
err = 2;
matvar = NULL;
break;
}
else if (matvar->dims[0] != 1 || matvar->dims[2] != 1) {
err = 3;
matvar = NULL;
break;
}
}
if (NULL == matvar) {
Mat_VarFree(matvarRoot);
(void)Mat_Close(mat);
if (NULL != token) {
char matrixNameBuf[MATLAB_NAME_LENGTH_MAX];
char dots[4];
if (strlen(prevToken) > MATLAB_NAME_LENGTH_MAX - 1) {
strncpy(matrixNameBuf, prevToken, MATLAB_NAME_LENGTH_MAX - 1);
matrixNameBuf[MATLAB_NAME_LENGTH_MAX - 1] = '\0';
strcpy(dots, "...");
}
else {
strcpy(matrixNameBuf, prevToken);
dots[0] = '\0';
}
free(matrixNameCopy);
if (1 == err) {
ModelicaFormatError(
"Variable \"%s%s\" of \"%s\" is not a struct array.\n",
matrixNameBuf, dots, matrixName);
}
else if (2 == err) {
ModelicaFormatError(
"Variable \"%s%s\" of \"%s\" is not a struct array "
"of rank 2.\n", matrixNameBuf, dots, matrixName);
}
else if (3 == err) {
ModelicaFormatError(
"Variable \"%s%s\" of \"%s\" is not a 1x1 struct array.\n",
matrixNameBuf, dots, matrixName);
}
}
else {
free(matrixNameCopy);
ModelicaFormatError(
"Variable \"%s\" not found in file \"%s\".\n", matrixName, fileName);
}
return;
}
free(matrixNameCopy);
/* Check if matvar is a matrix */
if (matvar->rank != 2) {
Mat_VarFree(matvarRoot);
(void)Mat_Close(mat);
ModelicaFormatError(
"Variable \"%s\" is not of rank 2.\n", matrixName);
return;
}
/* Set output fields for MatIO structure */
matio->mat = mat;
matio->matvar = matvar;
matio->matvarRoot = matvarRoot;
}
static void readRealMatIO(_In_z_ const char* fileName,
_In_z_ const char* matrixName, _Inout_ MatIO* matio) {
readMatIO(fileName, matrixName, matio);
if (NULL != matio->matvar) {
matvar_t* matvar = matio->matvar;
/* Check if variable class of matvar is numeric (and thus non-sparse) */
if (matvar->class_type != MAT_C_DOUBLE && matvar->class_type != MAT_C_SINGLE &&
matvar->class_type != MAT_C_INT8 && matvar->class_type != MAT_C_UINT8 &&
matvar->class_type != MAT_C_INT16 && matvar->class_type != MAT_C_UINT16 &&
matvar->class_type != MAT_C_INT32 && matvar->class_type != MAT_C_UINT32 &&
matvar->class_type != MAT_C_INT64 && matvar->class_type != MAT_C_UINT64) {
Mat_VarFree(matio->matvarRoot);
(void)Mat_Close(matio->mat);
ModelicaFormatError("Matrix \"%s\" is not a "
"numeric array.\n", matrixName);
return;
}
matvar->class_type = MAT_C_DOUBLE;
/* Check if matvar is purely real-valued */
if (matvar->isComplex) {
Mat_VarFree(matio->matvarRoot);
(void)Mat_Close(matio->mat);
ModelicaFormatError("Matrix \"%s\" must not be complex.\n",
matrixName);
return;
}
}
}
static int IsNumber(char* token) {
int foundExponentSign = 0;
int foundExponent = 0;
int foundDec = 0;
int foundDigit = 0;
int isNumber = 1;
int k;
if (token[0] == '-' || token[0] == '+') {
k = 1;
}
else {
k = 0;
}
while (token[k] != '\0') {
if (token[k] >= '0' && token[k] <= '9') {
k++;
foundDigit++;
}
else if (token[k] == '.' && foundDec == 0 &&
foundExponent == 0 && foundExponentSign == 0) {
foundDec = 1;
k++;
}
else if ((token[k] == 'e' || token[k] == 'E') &&
foundExponent == 0 && foundDigit > 0) {
foundExponent = 1;
foundDigit = 0;
k++;
}
else if ((token[k] == '-' || token[k] == '+') &&
foundExponent == 1 && foundExponentSign == 0) {
foundExponentSign = 1;
k++;
}
else {
isNumber = 0;
break;
}
}
return isNumber && foundDigit > 0;
}
static double* readCsvTable(_In_z_ const char* fileName, _In_z_ const char* tableName,
_Out_ size_t* m, _Out_ size_t* n, _In_z_ const char* delimiter,
int nHeaderLines) {
double* table = NULL;
char* buf;
int bufLen = LINE_BUFFER_LENGTH;
FILE* fp;
int readError;
unsigned long nRow = 0;
unsigned long nCol = 0;
unsigned long lineNo = 1;
#if defined(NO_LOCALE)
const char * const dec = ".";
#elif defined(_MSC_VER) && _MSC_VER >= 1400
_locale_t loc;
#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) && ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= (2 << 16) + 3)
locale_t loc;
#else
char* dec;
#endif
char delimTable[5] = " \t\r";
if (delimiter[0] != ' ' && delimiter[0] != '\t' && delimiter[0] != '\r') {
strncat(delimTable, delimiter, 1);
}
fp = fopen(fileName, "r");
if (NULL == fp) {
ModelicaFormatError("Not possible to open file \"%s\": "
"No such file or directory\n", fileName);
return NULL;
}
buf = (char*)malloc(LINE_BUFFER_LENGTH*sizeof(char));
if (NULL == buf) {
fclose(fp);
ModelicaError("Memory allocation error\n");
return NULL;
}
/* Ignore file header */
while (lineNo <= (unsigned long)nHeaderLines) {
if ((readError = readLine(&buf, &bufLen, fp)) != 0) {
free(buf);
fclose(fp);
if (readError < 0) {
ModelicaFormatError(
"Error reading line %lu from file \"%s\": "
"End-Of-File reached.\n", lineNo, fileName);
}
return NULL;
}
lineNo++;
}
#if defined(NO_LOCALE)
#elif defined(_MSC_VER) && _MSC_VER >= 1400
loc = _create_locale(LC_NUMERIC, "C");
#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) && ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= (2 << 16) + 3)
loc = newlocale(LC_NUMERIC, "C", NULL);
#else
dec = localeconv()->decimal_point;
#endif
/* First pass: Loop over lines of file and determine dimensions */
while (readLine(&buf, &bufLen, fp) == 0) {
nRow++;
if (nRow == 1) {
#if defined(_POSIX_) || (defined(_MSC_VER) && _MSC_VER >= 1400)
char* nextToken = NULL;
#endif
char* token = strtok_r(buf, delimTable, &nextToken);
while (NULL != token) {
token = strtok_r(NULL, delimTable, &nextToken);
nCol++;
}
}
}
/* Reset for second pass */
fseek(fp, 0, SEEK_SET);
lineNo = 1;
/* Ignore file header */
while (lineNo <= (unsigned long)nHeaderLines) {
readLine(&buf, &bufLen, fp);
lineNo++;
}
lineNo--;
{
size_t i = 0;
table = (double*)malloc(nRow*nCol*sizeof(double));
if (NULL == table) {
*m = 0;
*n = 0;
free(buf);
fclose(fp);
#if defined(NO_LOCALE)
#elif defined(_MSC_VER) && _MSC_VER >= 1400
_free_locale(loc);
#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) && ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= (2 << 16) + 3)
freelocale(loc);
#endif
ModelicaError("Memory allocation error\n");
return table;
}
readError = 0;
/* Loop over rows and store table row-wise */
for (i = 0; i < nRow; i++) {
size_t j = 0;
char* token;
char* endptr;
#if defined(_POSIX_) || (defined(_MSC_VER) && _MSC_VER >= 1400)
char* nextToken = NULL;
#endif
if (readError != 0) {
break;
}
lineNo++;
readError = readLine(&buf, &bufLen, fp) != 0;
#if defined(_POSIX_) || (defined(_MSC_VER) && _MSC_VER >= 1400)
nextToken = NULL;
#endif
token = strtok_r(buf, delimTable, &nextToken);
for (j = 0; j < nCol; j++) {
if (token == NULL) {
readError = 1;
break;
}
#if !defined(NO_LOCALE) && (defined(_MSC_VER) && _MSC_VER >= 1400)
table[i*nCol + j] = _strtod_l(token, &endptr, loc);
if (*endptr != 0) {
readError = 1;
}
#elif !defined(NO_LOCALE) && (defined(__GLIBC__) && defined(__GLIBC_MINOR__) && ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= (2 << 16) + 3))
table[i*nCol + j] = strtod_l(token, &endptr, loc);
if (*endptr != 0) {
readError = 1;
}
#else
if (*dec == '.') {
table[i*nCol + j] = strtod(token, &endptr);
}
else if (NULL == strchr(token, '.')) {
table[i*nCol + j] = strtod(token, &endptr);
}
else {
char* token2 = (char*)malloc(
(strlen(token) + 1)*sizeof(char));
if (NULL != token2) {
char* p;
strcpy(token2, token);
p = strchr(token2, '.');
*p = *dec;
table[i*nCol + j] = strtod(token2, &endptr);
if (*endptr != 0) {
readError = 1;
}
free(token2);
}
else {
*m = 0;
*n = 0;
free(buf);
fclose(fp);
readError = 1;
ModelicaError("Memory allocation error\n");
break;
}
}
#endif
if (readError == 0) {
token = strtok_r(NULL, delimTable, &nextToken);
}
else {
break;
}
}
}
}
free(buf);
fclose(fp);
#if defined(NO_LOCALE)
#elif defined(_MSC_VER) && _MSC_VER >= 1400
_free_locale(loc);
#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) && ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= (2 << 16) + 3)
freelocale(loc);
#endif
if (readError == 0) {
*m = (size_t)nRow;
*n = (size_t)nCol;
}
else {
free(table);
table = NULL;
*m = 0;
*n = 0;
ModelicaFormatError(
"Error in line %lu when reading numeric data of matrix "
"\"%s(%lu,%lu)\" from file \"%s\"\n", lineNo,
tableName, nRow, nCol, fileName);
}
return table;
}
static double* readTxtTable(_In_z_ const char* fileName, _In_z_ const char* tableName,
_Out_ size_t* m, _Out_ size_t* n) {
#define DELIM_TABLE_HEADER " \t(,)\r"
#define DELIM_TABLE_NUMBER " \t,;\r"
double* table = NULL;
char* buf;
char* header;
int bufLen = LINE_BUFFER_LENGTH;
FILE* fp;
int foundTable = 0;
int foundDims = 0;
int readError;
unsigned long nRow = 0;
unsigned long nCol = 0;
unsigned long lineNo = 1;
const unsigned char txtHeader[2] = { 0x23,0x31 };
const unsigned char utf8BOM[3] = { 0xef,0xbb,0xbf };
#if defined(NO_LOCALE)
const char * const dec = ".";
#elif defined(_MSC_VER) && _MSC_VER >= 1400
_locale_t loc;
#elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) && ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= (2 << 16) + 3)
locale_t loc;
#else
char* dec;
#endif
fp = fopen(fileName, "r");
if (NULL == fp) {
ModelicaFormatError("Not possible to open file \"%s\": "
"No such file or directory\n", fileName);
return NULL;
}
buf = (char*)calloc(LINE_BUFFER_LENGTH, sizeof(char));
if (NULL == buf) {
fclose(fp);
ModelicaError("Memory allocation error\n");