883196981d
- for example,
string buffer = ...;
SubStrings<string> split;
{
auto colon = buffer.find(':');
if (colon != std::string::npos)
{
split = stringOps::splitSpace(buffer, colon+1);
}
}
Not really possible with a substr() since that would create a new
temporary which then disappears. Similarly awkward to split and
then scan for the ':' to decide how many to discard.
ENH: add pop_front() and pop_back() methods to SubStrings
- the content is trivial enough (a pair of iterators) and the total
number of elements is usually reasonable short so that removal of
elements is inexpensive
For example,
string buffer = ...;
auto split = stringOps::splitSpace(buffer);
if (!split.empty() && split[0].str() == "face")
{
split.pop_front();
}
166 lines
4.1 KiB
C++
166 lines
4.1 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2016-2024 OpenCFD Ltd.
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Description
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Test some string functionality
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\*---------------------------------------------------------------------------*/
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#include "CStringList.H"
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#include "DynamicList.H"
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#include "IOstreams.H"
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#include "fileNameList.H"
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#include "stringOps.H"
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#include "stringList.H"
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#include "wordList.H"
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#include "SubStrings.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int print(int argc, char *argv[])
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{
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Info<< "argc=" << argc << endl;
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for (int i=0; i<argc; ++i)
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{
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Info<< " argv[" << i << "] = \"" << argv[i] << "\"" << endl;
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}
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return argc;
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}
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int print(const CStringList& cstrLst)
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{
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return print(cstrLst.size(), cstrLst.strings());
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}
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// Using nullptr termination
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int print(char *argv[])
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{
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if (!argv)
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{
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Info<< "argv=null" << endl;
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return 0;
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}
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int i=0;
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while (argv[i])
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{
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Info<< " argv[" << i << "] = \"" << argv[i] << "\"" << endl;
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++i;
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}
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return i;
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}
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// Main program:
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int main(int argc, char *argv[])
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{
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DynamicList<string> dynlst(16);
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dynlst.push_back("string1 with content");
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dynlst.push_back("string2 other content");
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dynlst.push_back("string3 more");
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dynlst.push_back("string4 done");
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{
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CStringList inC(dynlst);
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Info<< "input: " << dynlst << nl;
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print(inC);
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Info<< "null-terminated string list" << nl;
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print(inC.strings());
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Info<< "sublist: starting at " << inC.size()/2 << nl;
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print(inC.strings(inC.size()/2));
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Info<< nl;
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}
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{
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CStringList inC({ "string1", "string2", "string3", "end" });
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Info<< "null-terminated string list from " << nl;
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print(inC.strings());
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Info<< "sublist: starting at " << inC.size()/2 << nl;
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print(inC.strings(inC.size()/2));
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Info<< nl;
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}
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{
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string testInput
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(
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" A test input line with various spacing "
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" and text to be split on whitespace "
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);
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Info<< testInput << nl;
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auto args = stringOps::splitSpace(testInput);
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Info<< "split into " << args.size() << " args" << nl;
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CStringList inC(args);
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print(inC);
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Info<< "sublist: starting at " << inC.size()/2 << nl;
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print(inC.strings(inC.size()/2));
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Info<< nl;
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}
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Info<< "command-line with " << CStringList::count(argv) << " items" << nl;
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print(argc, argv);
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Info<< nl;
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{
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dynlst.clear();
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for (int i=0; i<argc; ++i)
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{
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dynlst.push_back(argv[i]);
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}
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Info<< "input: " << dynlst << endl;
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CStringList inC(dynlst);
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inC.reset(dynlst);
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print(inC);
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Info<< "length: " << inC.length() << endl;
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std::cout.write(inC.data(), inC.length());
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}
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Info<< "\nEnd\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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