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applications/test/string/Test-string.C

@@ -0,0 +1,136 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
+     \\/     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
+    Test some string functionality
+
+\*---------------------------------------------------------------------------*/
+
+#include "string.H"
+#include "stringOps.H"
+#include "dictionary.H"
+#include "IOstreams.H"
+
+using namespace Foam;
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// Main program:
+
+int main(int argc, char *argv[])
+{
+    string test
+    (
+        "  $HOME kjhkjhkjh \" \\$HOME/tyetyery $; ${FOAM_RUN} \n $; hkjh;"
+        " $(DONOTSUBST) some other <${USER}> with '${__UNKNOWN:-some default}'"
+        " value "
+        " or with '${HOME:+Home was set}' via :+ alternative"
+        " or with '${__UNKNOWN:+unknown}' empty"
+    );
+
+    dictionary dict;
+    dict.add("HOME", "myHome");
+
+    dictionary subDict;
+    subDict.add("value1", "test1");
+    subDict.add("value2", "test2");
+    dict.add("FOAM_RUN", subDict);
+
+
+    Info<< "string:" << test << nl << "hash:"
+        << unsigned(string::hash()(test)) << endl;
+
+    Info<<"trimLeft: " << stringOps::trimLeft(test) << endl;
+    Info<<"trimRight: " << stringOps::trimRight(test) << endl;
+    Info<<"trim: " << stringOps::trim(test) << endl;
+
+
+    // test sub-strings via iterators
+    string::const_iterator iter  = test.end();
+    string::const_iterator iter2 = test.end();
+    string::size_type fnd = test.find('\\');
+
+    if (fnd != string::npos)
+    {
+        iter  = test.begin() + fnd;
+        iter2 = iter + 6;
+    }
+
+    Info<< "sub-string via iterators : >";
+    while (iter != iter2)
+    {
+        Info<< *iter;
+        ++iter;
+    }
+    Info<< "<\n";
+
+    Info<< string(test).replace("kj", "zzz") << endl;
+    Info<< string(test).replace("kj", "") << endl;
+    Info<< string(test).replaceAll("kj", "zzz") << endl;
+    Info<< string(test).replaceAll("kj", "z") << endl;
+
+    Info<< "expanded: " << string(test).expand() << endl;
+
+    Info<<"dictionary-based substitution: " << dict << endl;
+    Info<< "expand dict: " << stringOps::expand(test, dict) << endl;
+
+    string test2("~OpenFOAM/controlDict");
+    Info<< test2 << " => " << test2.expand() << endl;
+
+    // replace controlDict with "newName"
+    {
+        string::size_type i = test2.rfind('/');
+
+        if (i == string::npos)
+        {
+            test2 = "newName";
+        }
+        else
+        {
+            // this uses the std::string::replace
+            test2.replace(i+1, string::npos, "newName");
+        }
+        Info<< "after replace: " << test2 << endl;
+
+        // do another replace
+        // this uses the Foam::string::replace
+        test2.replace("OpenFOAM", "openfoam");
+
+        Info<< "after replace: " << test2 << endl;
+    }
+
+    string s;
+    Sin.getLine(s);
+
+    string s2(s.expand());
+
+    cout<< "output string with " << s2.length() << " characters\n";
+    cout<< "ostream<<  >" << s2 << "<\n";
+    Info<< "Ostream<<  >" << s2 << "<\n";
+    Info<< "hash:" << hex << string::hash()(s2) << endl;
+
+    Info<< "\nEnd\n" << endl;
+    return 0;
+}
+
+
+// ************************************************************************* //