std::shared_ptr<XStream> XFileManager::OpenFileStream(const XPath& branchAbsPath, const XString& leaf)
{
XPath fileAbsPath(branchAbsPath);
fileAbsPath.AppendXStr(leaf);
std::shared_ptr<XFileStream> streamp = XPool<XFileStream>::NewObject();
XFileStream& stream = *streamp;
if (!stream.Open(fileAbsPath))
return std::shared_ptr<XFileStream>();
return streamp;
}
/*
Tests if file readable and may change name to add
compression extension. Here to get ZLIB etc in one place
stdin goes by unmolested by all the fussing with file names. We shouldn't
close it, either.
*/
bool fileCoinReadable(std::string & fileName, const std::string &dfltPrefix)
{
if (fileName != "stdin")
{ const char dirsep = CoinFindDirSeparator();
std::string directory ;
if (dfltPrefix == "")
{ directory = (dirsep == '/' ? "./" : ".\\") ; }
else
{ directory = dfltPrefix ;
if (directory[directory.length()-1] != dirsep)
{ directory += dirsep ; } }
bool absolutePath = fileAbsPath(fileName) ;
std::string field = fileName;
if (absolutePath) {
// nothing to do
} else if (field[0]=='~') {
char * home_dir = getenv("HOME");
if (home_dir) {
std::string home(home_dir);
field=field.erase(0,1);
fileName = home+field;
} else {
fileName=field;
}
} else {
fileName = directory+field;
}
}
// I am opening it to make sure not odd
FILE *fp;
if (strcmp(fileName.c_str(),"stdin")) {
fp = fopen ( fileName.c_str(), "r" );
} else {
fp = stdin;
}
#ifdef COIN_HAS_ZLIB
if (!fp) {
std::string fname = fileName;
fname += ".gz";
fp = fopen ( fname.c_str(), "r" );
if (fp)
fileName=fname;
}
#endif
#ifdef COIN_HAS_BZLIB
if (!fp) {
std::string fname = fileName;
fname += ".bz2";
fp = fopen ( fname.c_str(), "r" );
if (fp)
fileName=fname;
}
#endif
if (!fp) {
return false;
} else {
if (fp != stdin) {
fclose(fp);
}
return true;
}
}
