khanat-code-old/code/ryzom/common/src/game_share/utils.cpp

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2010-05-06 00:08:41 +00:00
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//-------------------------------------------------------------------------------------------------
// includes
//-------------------------------------------------------------------------------------------------
#include "stdpch.h"
#include "nel/misc/sstring.h"
//-------------------------------------------------------------------------------------------------
// namespaces
//-------------------------------------------------------------------------------------------------
using namespace NLMISC;
//-----------------------------------------------------------------------------
// cleanPath - convert a path to standardised format
//-----------------------------------------------------------------------------
CSString cleanPath(const CSString& path,bool addTrailingSlash)
{
CSString result;
// split the path up into its component elements
CVectorSString pathComponents;
path.unquoteIfQuoted().splitByOneOfSeparators("/\\",pathComponents,false,false,true,false,true);
// iterate over path components collapsing '.' and '..' entries
for (uint32 i=0;i<pathComponents.size();++i)
{
// skip "." entries
if (pathComponents[i]==".")
{
pathComponents[i].clear();
continue;
}
// deal with ".."
if (pathComponents[i]=="..")
{
// run back through our component list looking for an element to remove
uint32 j;
for (j=i;j--;)
{
if (!pathComponents[j].empty())
break;
}
// if we found an element then remove it and the '..' as well
if (j!=~0u)
{
pathComponents[j].clear();
pathComponents[i].clear();
}
continue;
}
}
// treat the special case where original path started with a '/' or '//'
if (path.left(1)=="/" || path.left(1)=="\\")
{
result= (path.left(2).right(1)=="/" || path.left(2).right(1)=="\\")? "//": "/";
}
// concatenate the path bits
for (uint32 i=0;i<pathComponents.size();++i)
{
if (!pathComponents[i].empty())
{
result+= pathComponents[i];
result+= '/';
}
}
// if we're not supposed to have a trailing slash then get rid of the one that's added by default
if (addTrailingSlash==false && path.right(1)!='/' && path.right(1)!='\\')
{
result.resize(result.size()-1);
}
return result;
}