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COMP: avoid constructor ambiguity for ISpanStream
- compiler cannot decide between std::string and std::string_view when creating from 'const char*' without also supplying the size, so also supply a 'const char*' constructor. ENH: additional string_view handling for ITstream and SubStrings
This commit is contained in:
Mark Olesen
255
applications/test/stringSplit/Test-stringSplit.cxx
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255
applications/test/stringSplit/Test-stringSplit.cxx
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/*---------------------------------------------------------------------------*\
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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) 2017-2025 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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Application
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Test-stringSplit
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Description
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Test string splitting
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "fileName.H"
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#include "stringOps.H"
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#include "Switch.H"
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using namespace Foam;
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// Simple utility
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template<class StringType>
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void printSubStrings
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(
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const StringType& str,
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const SubStrings<StringType>& split
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)
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{
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Info<< "string {" << str.size() << " chars} = " << str << nl
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<< split.size() << " elements {" << split.length() << " chars}"
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<< nl;
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for (unsigned i = 0; i < split.size(); ++i)
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{
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const auto& s = split[i];
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Info<< "[" << i << "] {" << s.length() << " chars} = "
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<< split.view(i) << " == " << s.str()
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<< nl;
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}
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}
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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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argList::noBanner();
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argList::noParallel();
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argList::noMandatoryArgs();
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argList::addArgument("string .. stringN");
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argList::addOption
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(
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"any",
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"delimChars",
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"test split on any delimiter characters"
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);
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argList::addOption
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(
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"sub",
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"string",
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"test split on substring"
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);
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argList::addOption
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(
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"char",
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"delim",
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"test split on specified delimiter character"
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);
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argList::addOption
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(
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"fixed",
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"int",
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"test split on fixed width"
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);
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argList::addOption
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(
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"begin",
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"int",
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"begin offset for splits"
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);
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argList::addBoolOption
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(
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"slash",
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"test split on slash (default)"
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);
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argList::addBoolOption
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(
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"space",
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"test split on space"
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);
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argList::addBoolOption
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(
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"empty",
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"preserve empty strings in split"
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);
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argList args(argc, argv);
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if (args.size() <= 1 && args.options().empty())
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{
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args.printUsage();
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}
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const label beginOffset = args.getOrDefault<label>("begin", 0);
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const bool keepEmpty = args.found("empty");
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Info<< "begin offset: " << beginOffset << nl;
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Info<< "keep empty : " << Switch::name(keepEmpty) << nl;
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const label nopts =
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args.count({"any", "slash", "space", "sub", "fixed", "char"});
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if (args.found("any"))
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{
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const std::string& str = args["any"];
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Info<< "split on any chars" << nl
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<< "=" << str << nl
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<< "~~~~~~~~~~~~~~~" << nl;
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for (label argi=1; argi < args.size(); ++argi)
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{
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auto split = stringOps::splitAny(args[argi], str, beginOffset);
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printSubStrings(args[argi], split);
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}
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if (nopts == 1)
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{
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return 0;
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}
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}
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if (args.found("sub"))
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{
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const std::string& str = args["sub"];
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Info<< "split on substring" << nl
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<< "=" << str << nl
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<< "~~~~~~~~~~~~~~~" << nl;
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for (label argi=1; argi < args.size(); ++argi)
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{
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auto split = stringOps::split(args[argi], str, beginOffset);
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printSubStrings(args[argi], split);
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}
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if (nopts == 1)
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{
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return 0;
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}
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}
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if (args.found("space"))
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{
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Info<< "split on space" << nl
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<< "~~~~~~~~~~~~~~" << nl;
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for (label argi=1; argi < args.size(); ++argi)
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{
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auto split = stringOps::splitSpace(args[argi], beginOffset);
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printSubStrings(args[argi], split);
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Info<< "pop_front(2)" << nl;
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split.pop_front(2);
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printSubStrings(args[argi], split);
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}
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if (nopts == 1)
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{
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return 0;
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}
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}
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if (args.found("char"))
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{
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const char delim = args["char"][0];
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Info<< "split on char=" << delim << nl
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<< "~~~~~~~~~~~~~~" << nl;
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for (label argi=1; argi < args.size(); ++argi)
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{
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auto split =
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stringOps::split(args[argi], delim, beginOffset, keepEmpty);
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printSubStrings(args[argi], split);
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}
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if (nopts == 1)
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{
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return 0;
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}
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}
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if (args.found("fixed"))
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{
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const label width = args.get<label>("fixed");
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Info<< "split on fixed width = " << width << nl
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<< "~~~~~~~~~~~~~~" << nl;
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for (label argi=1; argi < args.size(); ++argi)
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{
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auto split = stringOps::splitFixed(args[argi], width, beginOffset);
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printSubStrings(args[argi], split);
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}
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if (nopts == 1)
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{
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return 0;
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}
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}
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// Default
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if (!nopts || args.found("slash"))
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{
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const char delim = '/';
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Info<< "split on slash" << nl
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<< "~~~~~~~~~~~~~~" << nl;
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for (label argi=1; argi < args.size(); ++argi)
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{
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auto split =
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stringOps::split(args[argi], delim, beginOffset, keepEmpty);
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printSubStrings(args[argi], split);
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}
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}
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return 0;
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}
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// ************************************************************************* //
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