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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Description
\*---------------------------------------------------------------------------*/
#include "ListStream.H"
#include "wordList.H"
#include "IOstreams.H"
#include "argList.H"
using namespace Foam;
Ostream& toString(Ostream& os, const UList<char>& list)
{
os << '"';
for (const char c : list)
{
os << c;
}
os << '"';
return os;
}
template<class BufType>
void printInfo(const BufType& buf)
{
Info<< nl << "=========================" << endl;
buf.print(Info);
toString(Info, buf.list());
Info<< nl << "=========================" << endl;
}
void printTokens(Istream& is)
{
label count = 0;
token t;
while (is.good())
{
is >> t;
if (t.good())
{
++count;
Info<<"token: " << t << endl;
}
}
Info<< count << " tokens" << endl;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Main program:
int main(int argc, char *argv[])
{
// Buffer storage
DynamicList<char> storage(16);
OListStream obuf(std::move(storage));
obuf.setBlockSize(100);
printInfo(obuf);
// Fill with some content
for (label i = 0; i < 50; ++i)
{
obuf<< 1002 << " " << "abcd" << " "
<< "def" << " " << 3.14159 << ";\n";
}
printInfo(obuf);
obuf.rewind();
printInfo(obuf);
for (label i=0; i < 10; ++i)
{
obuf << "item" << i << "\n";
}
printInfo(obuf);
obuf.shrink();
Info<< "after shrink" << nl;
printInfo(obuf);
// Add some more
for (label i=10; i < 15; ++i)
{
obuf << "more" << i << nl;
}
Info<< "appended more" << nl;
printInfo(obuf);
// Overwrite at some position
obuf.stdStream().rdbuf()->pubseekpos(0.60 * obuf.size());
obuf << "<" << nl << "OVERWRITE" << nl;
Info<<"after overwrite" << nl;
printInfo(obuf);
Info<< "transfer contents to a List or IListStream" << nl;
IListStream ibuf;
// Reclaim data storage from OListStream -> IListStream
{
List<char> data;
obuf.swap(data);
ibuf.swap(data);
}
Info<<"original:";
printInfo(obuf);
Info<<"new input:" << nl;
printInfo(ibuf);
printTokens(ibuf);
// Create from other storage types
List<char> written;
Info<< nl;
{
Info<<"create std::move(List)" << endl;
List<char> list(16, 'A');
Info<<"input:";
toString(Info, list) << endl;
OListStream buf1(std::move(list));
for (label i = 0; i < 26; ++i)
{
buf1 << char('A' +i);
}
for (label i = 0; i < 26; ++i)
{
buf1 << char('a' +i);
}
Info<<"orig:";
toString(Info, list) << endl;
printInfo(buf1);
// Move back to written
buf1.swap(written);
printInfo(buf1);
}
Info<<"'captured' content ";
toString(Info, written);
Info<< "\nEnd\n" << endl;
return 0;
}
// ************************************************************************* //
|
