curt
0ff748987b
Made fix_path() a private member function, SGPath::fix(), Added bool SGPath::exists(), Added an assignment operator that acts like SGPath::append().
125 lines
2.6 KiB
C++
125 lines
2.6 KiB
C++
// sg_path.cxx -- routines to abstract out path separator differences
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// between MacOS and the rest of the world
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//
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// Written by Curtis L. Olson, started April 1999.
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//
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// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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//
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// $Id$
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#include <simgear_config.h>
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#include <stdio.h>
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#include "sg_path.hxx"
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// If Unix, replace all ":" with "/". If MacOS, replace all "/" with
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// ":" it should go without saying that neither of these characters
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// should be used in file or directory names. In windoze, allow the
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// second character to be a ":" for things like c:\foo\bar
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void
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SGPath::fix()
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{
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for ( string::size_type i = 0; i < path.size(); ++i ) {
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#if defined( WIN32 )
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// for windoze, don't replace the ":" for the second character
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if ( i == 1 ) {
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continue;
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}
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#endif
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if ( path[i] == SG_BAD_PATH_SEP ) {
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path[i] = SG_PATH_SEP;
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}
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}
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}
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// default constructor
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SGPath::SGPath()
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: path("")
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{
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}
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// create a path based on "path"
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SGPath::SGPath( const std::string& p )
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: path(p)
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{
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fix();
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}
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// destructor
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SGPath::~SGPath() {
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}
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// set path
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void SGPath::set( const string& p ) {
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path = p;
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fix();
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}
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// append another piece to the existing path
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void SGPath::append( const string& p ) {
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if ( path.size() == 0 ) {
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path = p;
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} else {
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if ( p[0] != SG_PATH_SEP ) {
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path += SG_PATH_SEP;
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}
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path += p;
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}
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fix();
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}
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// concatenate a string to the end of the path without inserting a
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// path separator
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void SGPath::concat( const string& p ) {
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if ( path.size() == 0 ) {
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path = p;
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} else {
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path += p;
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}
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fix();
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}
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// get the directory part of the path.
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string SGPath::dir() {
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int index = path.rfind(SG_PATH_SEP);
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if (index >= 0) {
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return path.substr(0, index);
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} else {
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return "";
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}
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}
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bool SGPath::exists() const {
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FILE* fp = fopen( path.c_str(), "r");
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if (fp == 0) {
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return false;
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}
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fclose(fp);
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return true;
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}
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