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https://develop.openfoam.com/Development/openfoam.git
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Creation of OpenFOAM-dev repository 15/04/2008
This commit is contained in:
OpenFOAM-admin
299
src/OpenFOAM/primitives/strings/string/string.C
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299
src/OpenFOAM/primitives/strings/string/string.C
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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 | Copyright (C) 1991-2007 OpenCFD Ltd.
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\\/ M anipulation |
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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 the
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Free Software Foundation; either version 2 of the License, or (at your
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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, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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\*---------------------------------------------------------------------------*/
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#include "string.H"
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#include "debug.H"
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#include "OSspecific.H"
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/* * * * * * * * * * * * * * * Static Member Data * * * * * * * * * * * * * */
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const char* const Foam::string::typeName = "string";
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int Foam::string::debug(debug::debugSwitch(string::typeName, 0));
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const Foam::string Foam::string::null;
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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// Count and return the number of a given character in the string
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Foam::string::size_type Foam::string::count(const char c) const
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{
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register size_type cCount=0;
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for
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(
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const_iterator iter = begin();
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iter != end();
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++iter
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)
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{
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if (*iter == c)
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{
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cCount++;
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}
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}
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return cCount;
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}
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// Replace first occurence of sub-string oldStr with newStr
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Foam::string& Foam::string::replace
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(
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const string& oldStr,
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const string& newStr,
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size_type start
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)
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{
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size_type newStart = start;
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if ((newStart = find(oldStr, newStart)) != npos)
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{
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std::string::replace(newStart, oldStr.size(), newStr);
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}
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return *this;
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}
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// Replace all occurences of sub-string oldStr with newStr
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Foam::string& Foam::string::replaceAll
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(
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const string& oldStr,
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const string& newStr,
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size_type start
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)
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{
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if (oldStr.size())
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{
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size_type newStart = start;
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while ((newStart = find(oldStr, newStart)) != npos)
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{
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std::string::replace(newStart, oldStr.size(), newStr);
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newStart += newStr.size();
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}
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}
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return *this;
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}
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// Expand all occurences of environment variables and initial tilde sequences
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Foam::string& Foam::string::expand()
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{
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size_type startEnvar = 0;
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// Expand $VARS
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// Repeat until nothing more is found
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while
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(
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(startEnvar = find('$', startEnvar)) != npos
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&& startEnvar < size()-1
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)
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{
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if (startEnvar == 0 || operator[](startEnvar-1) != '\\')
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{
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// Find end of first occurrence
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size_type endEnvar = startEnvar;
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size_type nd = 0;
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if (operator[](startEnvar+1) == '{')
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{
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endEnvar = find('}', startEnvar);
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nd = 1;
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}
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else
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{
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iterator iter = begin() + startEnvar + 1;
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while (iter != end() && (isalnum(*iter) || *iter == '_'))
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{
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++iter;
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++endEnvar;
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}
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}
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if (endEnvar != npos && endEnvar != startEnvar)
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{
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string enVar = substr
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(
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startEnvar + 1 + nd,
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endEnvar - startEnvar - 2*nd
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);
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string enVarString = getEnv(enVar);
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if (enVarString.size())
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{
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std::string::replace
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(
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startEnvar,
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endEnvar - startEnvar + 1,
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enVarString
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);
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startEnvar += enVarString.size();
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}
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else
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{
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//startEnvar = endEnvar;
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FatalErrorIn("string::expand()")
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<< "Unknown variable name " << enVar << '.'
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<< exit(FatalError);
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}
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}
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else
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{
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break;
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}
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}
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else
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{
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startEnvar++;
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}
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}
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if (size())
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{
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// Expand initial '.' and './' into cwd
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if (operator[](0) == '.')
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{
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if (size() == 1 || (size() > 1 && operator[](1) == '/'))
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{
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std::string::replace(0, 1, cwd());
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}
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}
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else if (operator[](0) == '~')
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{
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// Expand initial ~
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// ~/ => home directory
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// ~OpenFOAM => site/user OpenFOAM configuration directory
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// ~user => home directory for specified user
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word user;
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fileName file;
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if ((startEnvar = find('/')) != npos)
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{
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user = substr(1, startEnvar - 1);
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file = substr(startEnvar + 1);
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}
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else
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{
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user = substr(1);
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}
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// NB: be a bit lazy and expand ~unknownUser as an
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// empty string rather than leaving it untouched.
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// otherwise add extra test
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if (user == "OpenFOAM")
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{
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*this = dotFoam(file);
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}
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else
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{
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*this = home(user)/file;
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}
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}
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}
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return *this;
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}
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// Remove repeated characters returning true if string changed
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bool Foam::string::removeRepeated(const char character)
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{
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bool changed = false;
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if (character && find(character) != npos)
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{
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register string::size_type nChar=0;
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iterator iter2 = begin();
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register char prev = 0;
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for
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(
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string::const_iterator iter1 = iter2;
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iter1 != end();
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iter1++
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)
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{
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register char c = *iter1;
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if (prev == c && c == character)
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{
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changed = true;
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}
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else
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{
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*iter2 = prev = c;
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++iter2;
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++nChar;
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}
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}
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resize(nChar);
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}
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return changed;
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}
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// Return string with repeated characters removed
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Foam::string Foam::string::removeRepeated(const char character) const
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{
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string s(*this);
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s.removeRepeated(character);
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return s;
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}
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// Remove trailing character returning true if string changed
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bool Foam::string::removeTrailing(const char character)
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{
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bool changed = false;
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string::size_type nChar = size();
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if (character && nChar > 1 && operator[](nChar-1) == character)
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{
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resize(nChar-1);
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changed = true;
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}
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return changed;
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}
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// Return string with trailing character removed
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Foam::string Foam::string::removeTrailing(const char character) const
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{
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string s(*this);
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s.removeTrailing(character);
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return s;
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}
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// ************************************************************************* //
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