TypedImage LoadPpm(std::ifstream& bFile)
{
// Parse header
std::string ppm_type = "";
int num_colors = 0;
int w = 0;
int h = 0;
bFile >> ppm_type;
PpmConsumeWhitespaceAndComments(bFile);
bFile >> w;
PpmConsumeWhitespaceAndComments(bFile);
bFile >> h;
PpmConsumeWhitespaceAndComments(bFile);
bFile >> num_colors;
bFile.ignore(1,'\n');
if(!bFile.fail() && w > 0 && h > 0) {
TypedImage img(w, h, PpmFormat(ppm_type, num_colors) );
// Read in data
for(size_t r=0; r<img.h; ++r) {
bFile.read( (char*)img.ptr + r*img.pitch, img.pitch );
}
if(!bFile.fail()) {
return img;
}
}
throw std::runtime_error("Unable to load PPM file.");
}
void die_if_unable_to_open_file(std::ifstream& in, const std::string& fn)
{
if (in.fail()) {
auto msg = "Failed to open file `" + fn + "'.";
PCSH_ENFORCE_MSG(!in.fail(), msg.c_str());
}
}
void OpenMTP_binary_header::read( std::ifstream &file )
{
unsigned char *pnt;
memset(header, 0, BUFLEN);
file.read((char *) header, BINARY_HEADER_FIRST_SECTION_LENGTH);
if (file.fail( ))
{
std::cerr << "Read error : BINARY Header, first section." << std::endl;
throw;
}
pnt = header + BINARY_HEADER_FIRST_SECTION_LENGTH;
if (is_rectified())
{
file.seekg(BINARY_HEADER_SECOND_SECTION_LENGTH, ios::cur);
if (file.fail( ))
{
std::cerr << "Read error : BINARY Header, second section" << std::endl;
throw;
}
}
else
{
file.read((char *) pnt, BINARY_HEADER_SECOND_SECTION_LENGTH);
if (file.fail( ))
{
std::cerr << "Read error : BINARY Header, second section" << std::endl;
throw;
}
}
pnt = pnt + BINARY_HEADER_SECOND_SECTION_LENGTH;
if (is_visible_composite())
{
file.read((char *) pnt, BINARY_HEADER_THIRD_SECTION_VIS_CMP_LENGTH);
if (file.fail( ))
{
std::cerr << "Read error : BINARY Header, third section" << std::endl;
throw;
}
}
else
{
file.read((char *) pnt, BINARY_HEADER_THIRD_SECTION_NORMAL_LEGTH);
if (file.fail( ))
{
std::cerr << "Read error : BINARY Header, third section" << std::endl;
throw;
}
}
return;
}
//the case if encounter a angle bracket "["
void MDparser::angleBracket(std::string& tobeStored, bool& readyToStore, std::ifstream& myinput, myset<std::string>& allWords, myset<std::string>& allLinks){
string buffer("");
char letter=(char)myinput.get();
while(letter!=']'&& !myinput.fail()){
buffer=buffer+letter;
letter=(char)myinput.get();
}
buffer+="]";
//parsing,change bool varibale to false
for (int i=0;i<(int)buffer.size();i++){
letter=buffer[i];
if(isLetter(letter)){
readyToStore=true;
tobeStored+=letter;
}
else if(!isLetter(letter)&&readyToStore){
allWords.insert(tobeStored);
tobeStored="";
readyToStore=false;
}
else if(!isLetter(letter)&&!readyToStore){
//donothing
}
}
if(!myinput.fail()){
letter=(char)myinput.get(); //get the next letter after']'
if(letter=='('){
buffer="";
letter=(char)myinput.get();
while(letter!=')'){
buffer+=letter;
letter=(char)myinput.get();
}
ifstream my_input(buffer.c_str());
if(!my_input.fail()){
allLinks.insert(buffer);
}
my_input.close();
buffer="";
readyToStore=false;
}
else{
if(isLetter(letter)){
readyToStore=true;
tobeStored+=letter;
}
else{
readyToStore=false;
}
}
}
}
bool TUtilities::CheckAndCompareFileString(std::ifstream &InFile, AnsiString InString)
//Reads the next item and checks it as a string value up to either the '\0' delimiter
//if there is one, in which case the '\0' is extracted but nothing more, or up to the next '\n',
//in which case the '\n' is extracted. There may or may not be a '\n' at the start, and if there
//is it is ignored (only one is ignored, a second one is treated as a delimiter).
//The item is then compared with InString and fails if different.
{
char TempChar;
char *Buffer = new char[10000];
int Count = 0;
InFile.get(TempChar);//may or may not be '\n'
if(InFile.fail())
{
delete Buffer;
return false;
}
if(TempChar == '\n')
{
InFile.get(TempChar);//get the next one if first was '\n'
if(InFile.fail())
{
delete Buffer;
return false;
}
}
while((TempChar != '\0') && (TempChar != '\n'))
{
if((TempChar < 32) && (TempChar >= 0))
{
delete Buffer;
return false;
}
Buffer[Count] = TempChar;
Count++;
InFile.get(TempChar);
if(InFile.fail())
{
delete Buffer;
return false;
}
}
Buffer[Count] = '\0';
Count++;
Buffer[Count] = '\n';
Count++;
if(AnsiString(Buffer) != InString)
{
delete Buffer;
return false;
}
delete Buffer;
return true;
}
/**
* This helper method just moves forward the two file pointers to skip some header lines.
* @param numLinesToSkip The number of header lines to skip
*/
void SkipHeaderLines(unsigned numLinesToSkip)
{
if (!mCalledCollectively || PetscTools::AmMaster())
{
for (unsigned line_number=0; line_number<numLinesToSkip; line_number++)
{
char buffer[1024];
mpFile1->getline(buffer, 1024);
mpFile2->getline(buffer, 1024);
TS_ASSERT(!mpFile1->fail()); // Here we assume there are at least "ignoreFirstFewLines" lines...
TS_ASSERT(!mpFile2->fail()); // ...and that they are lines of no more than 1024 characters
mLineNum++;
}
}
}
//---------------------------------------------------------------------------
bool TUtilities::CheckFileInt(std::ifstream &InFile, int Lowest, int Highest)
//no need to worry about leading '\n' characters as the skipws (skip white space) flag is
//set automatically
{
AnsiString IntString;
if(!CheckAndReadFileString(InFile, IntString)) return false;
if(InFile.fail()) return false;
if(IntString == "") return false;
for(int x=1;x<=IntString.Length();x++)
{
bool CharacterOK = false;
if((x == 1) && (IntString[x] == '-'))
{
CharacterOK = true;
}
else if((IntString[x] >= '0') && (IntString[x] <= '9'))
{
CharacterOK = true;
}
if(!CharacterOK) return false;
}
int TempInt = IntString.ToInt();
if((TempInt < Lowest) || (TempInt > Highest))
{
return false;
}
return true;
}
void openInputFile(std::ifstream& s, std::string path){
s.open(path);
if(s.fail()){
std::cerr << "Failure opening file \"" << path << "\" for input." << std::endl;
exit(0);
}
}
bool File::read(std::ifstream& stream)
{
CwdGuard cg(physical_dir_);
stream.open(ACE_TEXT_ALWAYS_CHAR(physical_file_.c_str()),
ios::binary | ios::in);
return !stream.bad() && !stream.fail();
}
void ReadWorldTagData( std::ifstream &inStream, UString &tag, UString &data )
{
char temp[4096];
tag = "o---o";
data = "o---o";
while( !inStream.eof() && !inStream.fail() )
{
inStream.getline( temp, 4096 );
UString sLine( temp );
sLine = sLine.removeComment().stripWhiteSpace();
if( !sLine.empty() )
{
if( sLine != "o---o" )
{
if( sLine.sectionCount( "=" ) == 1 )
{
tag = sLine.section( "=", 0, 0 ).stripWhiteSpace();
data = sLine.section( "=", 1 ).stripWhiteSpace();
break;
}
}
else
break;
}
}
}
bool TetGenInterface::readElementsFromStream(std::ifstream &ins)
{
std::string line;
getline (ins, line);
size_t pos_beg (line.find_first_not_of(" "));
size_t n_tets, n_nodes_per_tet;
bool region_attributes;
bool not_read_header (true);
while (!ins.fail() && not_read_header)
{
line = line.substr(pos_beg);
if (line.compare(0,1,"#") == 0)
{
// this line is a comment - skip
getline (ins, line);
pos_beg = line.find_first_not_of(" ");
}
else
// read header line
not_read_header = !parseElementsFileHeader(line,
n_tets,
n_nodes_per_tet,
region_attributes);
}
if (not_read_header)
return false;
if (!parseElements(ins, n_tets, n_nodes_per_tet, region_attributes))
return false;
return true;
}
static int getNextLine(void)
{
int i;
char *p;
nBuffer = 0;
nTokenStart = -1;
nTokenNextStart = 0;
eof = false;
std::getline(inputFile, buffer);
if (inputFile.eof())
{
eof = true;
return 1;
}
if (inputFile.fail())
{
return -1;
}
buffer += "\n";
std::replace(buffer.begin(), buffer.end(), '\t', ' ');
fileLineMap[currentFileName].push_back(buffer);
nRow += 1;
lBuffer = buffer.length();
return 0;
}
void CollisionHandler::loadImpulses(std::vector<CollisionInfo> &impulses, std::ifstream &ifs)
{
impulses.clear();
int numimpulses=0;
ifs.read((char *)&numimpulses, sizeof(int));
for(int i=0; i<numimpulses; i++)
{
CollisionInfo::collisiontype type;
ifs.read((char *)&type, sizeof(CollisionInfo::collisiontype));
int idx1, idx2;
ifs.read((char *)&idx1, sizeof(int));
ifs.read((char *)&idx2, sizeof(int));
VectorXs n(2);
ifs.read((char *)n.data(), n.size()*sizeof(scalar));
double time;
ifs.read((char *)&time, sizeof(double));
impulses.push_back(CollisionInfo(type, idx1, idx2, n, time));
}
if( ifs.fail() )
{
std::cout << outputmod::startred << "Error while trying to deserialize time step impulses. Exiting." << std::endl;
exit(1);
}
}
void RegionFileLoader::LoadDataFromFile(std::ifstream &file)
{
if (file.fail())
{
std::cerr << "Error <RegionFileLoader::LoadDataFromFile> File is unreadable" << std::endl;
return;
}
Double_t sa;
std::string aline;
std::stringstream ss;
while(1)
{
std::getline(file,aline);
if ( FileIsNotOkay(file) )
break;
else if ( LineShouldBeSkipped(aline) )
continue;
else if ( BeginningOfRegions(aline) )
{
// std::cout << aline << std::endl;
Regions regions = ReadRegions(file);
if (regions.size()>0)
fTheRegions.push_back(regions);
}
}
file.close();
}
bool readValue(std::ifstream& str, std::string key, T& out_value)
{
try
{
if (!goToMarker(str, key) || str.eof() || str.fail())
return false;
str >> out_value;
if (str.eof() || str.fail())
return false;
}
catch (...)
{
return false;
}
return true;
}
std::string openFileDialog(std::ifstream& stream,
const std::string& title,
const std::string& path) {
std::string filename = pp->file_openFileDialog(title, "load", path);
if (filename == "") return "";
stream.open(filename.c_str());
return (stream.fail()) ? "" : filename;
}
bool redirect_cin (const std::string& fn)
{
static std::ifstream alt_cin;
alt_cin.open (fn.c_str(), std::ios::in | std::ios::binary);
if (alt_cin.fail() ) return false;
std::cin.rdbuf (alt_cin.rdbuf() );
return true;
}
void readline(std::string* dst, std::ifstream& stream) {
char buf[1024];
do {
stream.clear();
stream.getline(buf, 1024);
*dst += buf;
} while( stream.fail() && !stream.eof() );
}
int LoadFileHeader( std::ifstream& ifs, BITMAPFILEHEADER& header ) {
ifs.read( reinterpret_cast< char* >( &header.bfType ), 2 );
ifs.read( reinterpret_cast< char* >( &header.bfSize ), 4 );
ifs.read( reinterpret_cast< char* >( &header.bfReserved1 ), 2 );
ifs.read( reinterpret_cast< char* >( &header.bfReserved2 ), 2 );
ifs.read( reinterpret_cast< char* >( &header.bfOffBits ), 4 );
return ifs.fail();
}
void safe_open(std::ifstream& f, const std::string& prompt, const std::string& default_name) {
for (;;) {
std::string file_name = prompt_string(prompt,default_name);
f.open(file_name.c_str());
if (!f.fail())
break;
std::cout << "Opening " << file_name << " failed." << std::endl;
}
}
//return -1 if fail to read file
int Level::get_int_from_file(std::ifstream &file){
int n = -1;
file >> n;
if (file.fail()) {
debug("load map fail");
}
return n;
}
/*---------------------------------------------------------*/
bool NOMAD::Cache_File_Point::read ( std::ifstream & fin )
{
reset();
// 1. _eval_status:
fin.read ( (char *) &_eval_status , sizeof(_eval_status) );
if ( fin.fail() || _eval_status > 3 )
return false;
// 2. _n:
fin.read ( (char *) &_n , sizeof(_n) );
if ( fin.fail() || _n <= 0 ) {
_n = 0;
return false;
}
// 3. _m:
fin.read ( (char *) &_m , sizeof(_m) );
if ( fin.fail() || _m < 0 ) {
_n = _m = 0;
return false;
}
// 4. _m_def:
fin.read ( (char *) &_m_def , sizeof(_m_def) );
if ( fin.fail() || _m_def < 0 ) {
_m_def = _n = _m = 0;
return false;
}
// 5. _coords:
_coords = new double [_n];
fin.read ( (char *) _coords , _n*sizeof(double) );
if ( fin.fail() ) {
reset();
return false;
}
if ( _m_def > 0 ) {
// 6. _bb_def:
_bbo_def = new double [_m_def];
fin.read ( (char *) _bbo_def , _m_def*sizeof(double) );
if ( fin.fail() ) {
reset();
return false;
}
// 7. _bbo_index:
_bbo_index = new int [_m_def];
fin.read ( (char *) _bbo_index , _m_def*sizeof(int) );
if ( fin.fail() ) {
reset();
return false;
}
}
return true;
}
/*
* Opens a text file whose name is entered by the user. If the file
* does not exist, the user is given additional chances to enter a
* valid file. The prompt string is used to tell the user what kind
* of file is required.
*/
void askUserForInputFile(std::string prompt, std::ifstream & infile) {
while (true) {
cout << prompt;
string filename = getLine();
infile.open(filename.c_str());
if (!infile.fail()) break;
cout << "Unable to open " << filename << endl;
infile.clear();
}
}
void
OpenIFile(std::ifstream& fs, const char* filenm)
{
using namespace std;
fs.open(filenm, ios::in);
if (!fs.is_open() || fs.fail()) {
DIAG_Throw("Cannot open file '" << filenm << "'");
}
}
/**
* Opens the prt_ifstream to read from the specified file
* @param file Path to the file to read particles from
*/
void open( const std::string& file ) {
m_fin.open( file.c_str(), std::ios::in | std::ios::binary );
if( m_fin.fail() )
throw std::ios_base::failure( "Failed to open file \"" + file + "\"" );
m_filePath = file;
m_fin.exceptions( std::ios::badbit );
read_header();
init_zlib();
}
void PutCommand::openFile(std::string& filename, std::ifstream &ifs)
{
ifs.open(filename, std::ifstream::binary);
if (ifs.fail() == true) {
this->header["size"] = "-1";
} else {
this->header["size"] = std::to_string(this->getFileSize(ifs));
}
}
void GetCommand::openFile(std::ifstream &ifs)
{
ifs.open(this->header["filename"], std::ifstream::binary);
if (ifs.fail() == true) {
std::cerr << "Failed to open : " << this->header["filename"] << std::endl;
this->header["size"] = "-1";
} else {
this->header["size"] = std::to_string(this->getFileSize(ifs));
}
}
/*
* Open an ifstream with fully specified path and mode.
*/
void
FileMaster::open(const std::string& name, std::ifstream& in,
std::ios_base::openmode mode) const
{
in.open(name.c_str(), mode);
if (in.fail()) {
std::string message = "Error opening input file. Filename: ";
message += name;
UTIL_THROW(message.c_str());
}
}
std::string promptUserForFile(std::ifstream &inFile, std::string prompt) {
while (true) {
std::cout << prompt;
std::string fileName;
getline(std::cin, fileName);
inFile.open(fileName.c_str());
if (!inFile.fail()) return fileName;
inFile.clear();
std::cout << "Unable to open that file. Try again." << std::endl;
if (prompt == "") prompt = "Input file: ";
}
}
//---------------------------------------------------------------------------
bool TUtilities::CheckFileBool(std::ifstream &InFile)
//no need to worry about leading '\n' characters as the skipws (skip white space) flag is
//set automatically
{
AnsiString BoolString;
if(!CheckAndReadFileString(InFile, BoolString)) return false;
if(InFile.fail()) return false;
if(BoolString == "") return false;
if((BoolString.Length() > 1) || (BoolString == "")) return false;
if((BoolString != "0") && (BoolString != "1")) return false;
return true;
}
