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// posixSystem.cpp
// Context Free
// ---------------------
// Copyright (C) 2005-2007 Mark Lentczner - markl@glyphic.com
// Copyright (C) 2007-2008 John Horigan - john@glyphic.com
//
// This program 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 2
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// Mark Lentczner can be contacted at markl@glyphic.com or at
// Mark Lentczner, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
// John Horigan can be contacted at john@glyphic.com or at
// John Horigan, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
//
#include "posixSystem.h"
#include <cstdlib>
#include "stdarg.h"
#include <string>
#include <fstream>
#include <iostream>
#include <string.h>
#include <stdlib.h>
using namespace std;
void
PosixSystem::message(bool error, const char* fmt, ...)
{
mError = mError || error;
if (mQuiet && !error) return;
char buf[256];
{
va_list args;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
buf[sizeof(buf)-1] = '\0';
va_end(args);
}
ostream& out = error ? cerr : cout;
out << buf << " " << endl;
}
void
PosixSystem::syntaxError(const std::string&, int)
{
// this version doesn't high-light the line in error
// the parser will have already called message() with
// the syntax error information
}
istream*
PosixSystem::openFileForRead(const string& path)
{
if (path == "-") return &cin;
return new ifstream(path.c_str(), ios::binary);
}
istream*
PosixSystem::tempFileForRead(const string& path)
{
return new ifstream(path.c_str(), ios::binary);
}
ostream*
PosixSystem::tempFileForWrite(string& prefixInNameOut)
{
#ifdef WIN32
char* path = _tempnam(0, prefixInNameOut.c_str());
prefixInNameOut = path;
ofstream* f = new ofstream(path, ios::binary | ios::out | ios::trunc);
free((void*)path);
return f;
#else
string t = "/tmp/" + prefixInNameOut + "XXXXXX";
char* b = new char[t.size() + 1];
strcpy(b, t.c_str());
ofstream* f = 0;
// Please ignore the warning about mktemp() being unsafe. There is no
// standard way to turn the descriptor returned by mkstemp() into an
// ostream object. We could add the boost library to the project (NO!!!!)
// or roll our own file descriptor ostream class (code exists on the
// internet). But it just doesn't seem worth the bother. mktemp() is
// unsafe for some types of programs, but who cares if an attacker takes
// down your Context Free.
if (mktemp(b)) {
f = new ofstream;
f->open(b, ios::binary);
prefixInNameOut = b;
}
delete b;
return f;
#endif
}
string
PosixSystem::relativeFilePath(const string& base, const string& rel)
{
string s = base;
string::size_type i = s.rfind('/');
if (i == string::npos) {
return rel;
}
i += 1;
s.replace(i, s.length() - i, rel);
return s;
}
void
PosixSystem::stats(const Stats& s)
{
if (mQuiet || mError) return;
cout << " " << s.shapeCount << " shapes";
if (s.toDoCount > 0)
cout << " - " << s.toDoCount << " expansions to do";
else
cout << " ";
cout << " \r";
cout.flush();
}
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