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ENH: add stringOps::splitAny, stringOps::splitSpace

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- assists when building simple hand-rolled parsers.
  Also add string::split() taking a sub-string for the delimiter.
This commit is contained in:
Mark Olesen
2017-08-14 10:36:12 +02:00
parent 3b16c365ee
commit fbdd16a293
3 changed files with 212 additions and 12 deletions
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105
applications/test/stringSplit/Test-stringSplit.C
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@ -35,11 +35,10 @@ Description
using namespace Foam;
// Simple utility
template<class String>
void printSplitting(const String& str, const char delimiter)
void printSubStrings(const String& str, const SubStrings<String>& split)
{
auto split = stringOps::split(str, delimiter);
Info<< "string {" << str.size() << " chars} = " << str << nl
<< split.size() << " elements {" << split.length() << " chars}"
<< nl;
@ -60,7 +59,28 @@ int main(int argc, char *argv[])
{
argList::noBanner();
argList::noParallel();
argList::addOption
(
"any",
"delimChars",
"test split on any delimiter characters"
);
argList::addOption
(
"sub",
"string",
"test split on substring"
);
argList::addBoolOption
(
"slash",
"test split on slash (default)"
);
argList::addBoolOption
(
"space",
"test split on space"
);
argList args(argc, argv, false, true);
if (args.size() <= 1 && args.options().empty())
@ -68,12 +88,83 @@ int main(int argc, char *argv[])
args.printUsage();
}
for (label argi=1; argi < args.size(); ++argi)
int nopts = 0;
for (auto optName : { "any", "slash", "space", "sub" })
{
printSplitting(args[argi], '/');
if (args.optionFound(optName))
{
++nopts;
}
}
if (args.optionFound("any"))
{
const std::string& str = args["any"];
Info<< "split on any chars" << nl
<< "=" << str << nl
<< "~~~~~~~~~~~~~~~" << nl;
for (label argi=1; argi < args.size(); ++argi)
{
const auto split = stringOps::splitAny(args[argi], str);
printSubStrings(args[argi], split);
}
if (nopts == 1)
{
return 0;
}
}
if (args.optionFound("sub"))
{
const std::string& str = args["sub"];
Info<< "split on substring" << nl
<< "=" << str << nl
<< "~~~~~~~~~~~~~~~" << nl;
for (label argi=1; argi < args.size(); ++argi)
{
const auto split = stringOps::split(args[argi], str);
printSubStrings(args[argi], split);
}
if (nopts == 1)
{
return 0;
}
}
if (args.optionFound("space"))
{
Info<< "split on space" << nl
<< "~~~~~~~~~~~~~~" << nl;
for (label argi=1; argi < args.size(); ++argi)
{
const auto split = stringOps::splitSpace(args[argi]);
printSubStrings(args[argi], split);
}
if (nopts == 1)
{
return 0;
}
}
// Default
if (!nopts || args.optionFound("slash"))
{
Info<< "split on slash" << nl
<< "~~~~~~~~~~~~~~" << nl;
for (label argi=1; argi < args.size(); ++argi)
{
const auto split = stringOps::split(args[argi], '/');
printSubStrings(args[argi], split);
}
}
Info<< "\nEnd\n" << endl;
return 0;
}