--- /dev/null
+The following files were unashamedly borrowed from other projects:
+
+zfstream.hxx
+zfstream.cxx
+ zlib/contrib/iostream
+
+stopwatch.hxx was (blitz/time.h)
+ blitz
+
+Some modifications have been made to fit in with the FlightGear scheme of things.
+
+As far as I'm aware they are all covered by GNU's licensing agreements.
+
+Many thanks to their respective authors.
+
+Bernie Bright (bbright@c031.aone.net.au)
--- /dev/null
+## Process this file with automake to produce Makefile.in
+
+noinst_LIBRARIES = libMisc.a
+
+libMisc_a_SOURCES = \
+ fgstream.cxx \
+ zfstream.cxx
+
+INCLUDES += -I$(top_builddir) -I$(top_builddir)/Lib
--- /dev/null
+// zlib input file stream wrapper.
+//
+// Written by Bernie Bright, 1998
+//
+// Copyright (C) 1998 Bernie Bright - bbright@c031.aone.net.au
+//
+// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
+
+#include <ctype.h> // isspace()
+#include "fgstream.hxx"
+
+//-----------------------------------------------------------------------------
+//
+// Open a possibly gzipped file for reading.
+//
+fg_gzifstream::fg_gzifstream( const string& name, int io_mode )
+{
+ open( name, io_mode );
+}
+
+//-----------------------------------------------------------------------------
+//
+// Open a possibly gzipped file for reading.
+// If the initial open fails and the filename has a ".gz" extension then
+// remove the extension and try again.
+// If the initial open fails and the filename doesn't have a ".gz" extension
+// then append ".gz" and try again.
+//
+void
+fg_gzifstream::open( const string& name, int io_mode )
+{
+ gzstream.open( name.c_str(), io_mode );
+ if ( gzstream.fail() )
+ {
+ string s = name;
+ if ( s.substr( s.length() - 3, 3 ) == ".gz" )
+ {
+ // remove ".gz" suffix
+ s.erase( s.length() - 3, 3 );
+ }
+ else
+ {
+ // Append ".gz" suffix
+ s += ".gz";
+ }
+
+ // Try again.
+ gzstream.open( s.c_str(), io_mode );
+ }
+}
+
+//-----------------------------------------------------------------------------
+//
+// Remove whitespace characters from the stream.
+//
+istream&
+fg_gzifstream::eat_whitespace()
+{
+ char c;
+ while ( gzstream.get(c) )
+ {
+ if ( ! isspace( c ) )
+ {
+ // put pack the non-space character
+ gzstream.putback(c);
+ break;
+ }
+ }
+ return gzstream;
+}
+
+//-----------------------------------------------------------------------------
+//
+// Remove whitspace chatacters and comment lines from a stream.
+//
+istream&
+fg_gzifstream::eat_comments()
+{
+ for (;;)
+ {
+ // skip whitespace
+ eat_whitespace();
+
+ char c;
+ gzstream.get( c );
+ if ( c != '#' )
+ {
+ // not a comment
+ gzstream.putback(c);
+ break;
+ }
+
+ // skip to end of line.
+ while ( gzstream.get(c) && c != '\n' )
+ ;
+ }
+ return gzstream;
+}
+
+
+// $Log$
+// Revision 1.1 1998/09/01 19:06:29 curt
+// Initial revision.
+//
--- /dev/null
+// zlib input file stream wrapper.
+//
+// Written by Bernie Bright, 1998
+//
+// Copyright (C) 1998 Bernie Bright - bbright@c031.aone.net.au
+//
+// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
+
+#ifndef _FGSTREAM_HXX
+#define _FGSTREAM_HXX
+
+#ifndef __cplusplus
+# error This library requires C++
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <string>
+
+#include "zfstream.hxx"
+
+//-----------------------------------------------------------------------------
+//
+// Envelope class for gzifstream.
+//
+class fg_gzifstream
+{
+public:
+ //
+ fg_gzifstream();
+
+ // Attempt to open a file with and without ".gz" extension.
+ fg_gzifstream( const string& name,
+ int io_mode = ios::in|ios::binary );
+
+ // Attempt to open a file with and without ".gz" extension.
+ void open( const string& name,
+ int io_mode = ios::in|ios::binary );
+
+ // Return the underlying stream.
+ istream& stream() { return gzstream; }
+
+ // Check stream state.
+ bool operator ! () const { return !gzstream; }
+
+ // Check for end of file.
+ bool eof() const { return gzstream.eof(); }
+
+ // Remove whitespace from stream.
+ // Whitespace is as defined by isspace().
+ istream& eat_whitespace();
+
+ // Removes comments and whitespace from stream.
+ // A comment is any line starting with '#'.
+ istream& eat_comments();
+
+ // Read one character from stream.
+ istream& get( char& c ) { return gzstream.get(c); }
+
+ // Put a character back into the input buffer.
+ istream& putback( char c ) { return gzstream.putback(c); }
+
+private:
+ // The underlying compressed data stream.
+ gzifstream gzstream;
+
+private:
+ // Not defined!
+ fg_gzifstream( const fg_gzifstream& );
+};
+
+#endif /* _FGSTREAM_HXX */
+
+// $Log$
+// Revision 1.1 1998/09/01 19:06:29 curt
+// Initial revision.
+//
--- /dev/null
+/***************************************************************************
+ * stopwatch.hxx Timer class, for use in benchmarking
+ *
+ * Based on blitz/Timer.h
+ *
+ * $Id$
+ *
+ * Copyright (C) 1997,1998 Todd Veldhuizen <tveldhui@seurat.uwaterloo.ca>
+ *
+ * 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.
+ *
+ * Suggestions: blitz-suggest@cybervision.com
+ * Bugs: blitz-bugs@cybervision.com
+ *
+ * For more information, please see the Blitz++ Home Page:
+ * http://seurat.uwaterloo.ca/blitz/
+ *
+ ***************************************************************************
+ * $Log$
+ * Revision 1.1 1998/09/01 19:06:30 curt
+ * Initial revision.
+ *
+ * Revision 1.4 1998/03/14 00:04:47 tveldhui
+ * 0.2-alpha-05
+ *
+ * Revision 1.3 1997/07/16 14:51:20 tveldhui
+ * Update: Alpha release 0.2 (Arrays)
+ *
+ * Revision 1.2 1997/01/24 14:42:00 tveldhui
+ * Periodic RCS update
+ *
+ */
+
+// This class is not portable to non System V platforms.
+// It will need to be rewritten for Windows, NT, Mac.
+// NEEDS_WORK
+
+#ifndef _STOPWATCH_HXX
+#define _STOPWATCH_HXX
+
+#ifndef __cplusplus
+# error This library requires C++
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#if defined(__linux__) && ! defined(HAVE_GETRUSAGE)
+# define HAVE_GETRUSAGE
+#endif
+
+#ifdef HAVE_GETRUSAGE
+ #include <sys/resource.h>
+#else
+ #include <time.h>
+#endif
+
+class StopWatch {
+
+public:
+ StopWatch()
+ {
+// state_ = uninitialized;
+ }
+
+ void start()
+ {
+// state_ = running;
+ t1_ = systemTime();
+ }
+
+ void stop()
+ {
+ t2_ = systemTime();
+// BZPRECONDITION(state_ == running);
+// state_ = stopped;
+ }
+
+ double elapsedSeconds()
+ {
+// BZPRECONDITION(state_ == stopped);
+ return t2_ - t1_;
+ }
+
+private:
+ StopWatch(StopWatch&) { }
+ void operator=(StopWatch&) { }
+
+ double systemTime()
+ {
+#ifdef HAVE_GETRUSAGE
+ getrusage(RUSAGE_SELF, &resourceUsage_);
+ double seconds = resourceUsage_.ru_utime.tv_sec
+ + resourceUsage_.ru_stime.tv_sec;
+ double micros = resourceUsage_.ru_utime.tv_usec
+ + resourceUsage_.ru_stime.tv_usec;
+ return seconds + micros/1.0e6;
+#else
+ return clock() / (double) CLOCKS_PER_SEC;
+#endif
+ }
+
+// enum { uninitialized, running, stopped } state_;
+
+#ifdef HAVE_GETRUSAGE
+ struct rusage resourceUsage_;
+#endif
+
+ double t1_, t2_;
+};
+
+#endif // _STOPWATCH_HXX
+
--- /dev/null
+// String utilities.
+//
+// Written by Bernie Bright, 1998
+//
+// Copyright (C) 1998 Bernie Bright - bbright@c031.aone.net.au
+//
+// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "strutils.hxx"
+
+//
+string
+trimleft( const string& s, const string& trimmings )
+{
+ string result;
+ string::size_type pos = s.find_first_not_of( trimmings );
+ if ( pos != string::npos )
+ {
+ result.assign( s.substr( pos ) );
+ }
+
+ return result;
+}
+
+//
+string
+trimright( const string& s, const string& trimmings )
+{
+ string result;
+
+ string::size_type pos = s.find_last_not_of( trimmings );
+ if ( pos == string::npos )
+ {
+ // Not found, return the original string.
+ result = s;
+ }
+ else
+ {
+ result.assign( s.substr( 0, pos+1 ) );
+ }
+
+ return result;
+}
+
+//
+string
+trim( const string& s, const string& trimmings )
+{
+ return trimright( trimleft( s, trimmings ), trimmings );
+}
+
+// $Log$
+// Revision 1.1 1998/09/01 19:06:30 curt
+// Initial revision.
+//
--- /dev/null
+// String utilities.
+//
+// Written by Bernie Bright, 1998
+//
+// Copyright (C) 1998 Bernie Bright - bbright@c031.aone.net.au
+//
+// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
+
+#ifndef STRUTILS_H
+#define STRUTILS_H
+
+#include <string>
+#include <cstdlib>
+
+// Default characters to remove.
+const string whitespace = " \n\r\t";
+
+// Returns a string with trailing characters removed.
+string trimleft( const string& s, const string& trimmings = whitespace );
+
+// Returns a string with leading characters removed.
+string trimright( const string& s, const string& trimmings = whitespace );
+
+// Returns a string with leading and trailing characters removed.
+string trim( const string& s, const string& trimmings = whitespace );
+
+//-----------------------------------------------------------------------------
+
+inline double
+atof( const string& str )
+{
+ return ::atof( str.c_str() );
+}
+
+inline int
+atoi( const string& str )
+{
+ return ::atoi( str.c_str() );
+}
+
+#endif // STRUTILS_H
+
+// $Log$
+// Revision 1.1 1998/09/01 19:06:31 curt
+// Initial revision.
+//
--- /dev/null
+
+#include <memory.h>
+#include "Misc/zfstream.hxx"
+
+gzfilebuf::gzfilebuf() :
+ file(NULL),
+ mode(0),
+ own_file_descriptor(0)
+{ }
+
+gzfilebuf::~gzfilebuf() {
+
+ sync();
+ if ( own_file_descriptor )
+ close();
+
+}
+
+gzfilebuf *gzfilebuf::open( const char *name,
+ int io_mode ) {
+
+ if ( is_open() )
+ return NULL;
+
+ char char_mode[10];
+ char *p;
+ memset(char_mode,'\0',10);
+ p = char_mode;
+
+ if ( io_mode & ios::in ) {
+ mode = ios::in;
+ *p++ = 'r';
+ } else if ( io_mode & ios::app ) {
+ mode = ios::app;
+ *p++ = 'a';
+ } else {
+ mode = ios::out;
+ *p++ = 'w';
+ }
+
+ if ( io_mode & ios::binary ) {
+ mode |= ios::binary;
+ *p++ = 'b';
+ }
+
+ // Hard code the compression level
+ if ( io_mode & (ios::out|ios::app )) {
+ *p++ = '9';
+ }
+
+ if ( (file = gzopen(name, char_mode)) == NULL )
+ return NULL;
+
+ own_file_descriptor = 1;
+
+ return this;
+
+}
+
+gzfilebuf *gzfilebuf::attach( int file_descriptor,
+ int io_mode ) {
+
+ if ( is_open() )
+ return NULL;
+
+ char char_mode[10];
+ char *p;
+ memset(char_mode,'\0',10);
+ p = char_mode;
+
+ if ( io_mode & ios::in ) {
+ mode = ios::in;
+ *p++ = 'r';
+ } else if ( io_mode & ios::app ) {
+ mode = ios::app;
+ *p++ = 'a';
+ } else {
+ mode = ios::out;
+ *p++ = 'w';
+ }
+
+ if ( io_mode & ios::binary ) {
+ mode |= ios::binary;
+ *p++ = 'b';
+ }
+
+ // Hard code the compression level
+ if ( io_mode & (ios::out|ios::app )) {
+ *p++ = '9';
+ }
+
+ if ( (file = gzdopen(file_descriptor, char_mode)) == NULL )
+ return NULL;
+
+ own_file_descriptor = 0;
+
+ return this;
+
+}
+
+gzfilebuf *gzfilebuf::close() {
+
+ if ( is_open() ) {
+
+ sync();
+ gzclose( file );
+ file = NULL;
+
+ }
+
+ return this;
+
+}
+
+int gzfilebuf::setcompressionlevel( short comp_level ) {
+
+ return gzsetparams(file, comp_level, -2);
+
+}
+
+int gzfilebuf::setcompressionstrategy( short comp_strategy ) {
+
+ return gzsetparams(file, -2, comp_strategy);
+
+}
+
+
+streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) {
+
+ return streampos(EOF);
+
+}
+
+int gzfilebuf::underflow() {
+
+ // If the file hasn't been opened for reading, error.
+ if ( !is_open() || !(mode & ios::in) )
+ return EOF;
+
+ // if a buffer doesn't exists, allocate one.
+ if ( !base() ) {
+
+ if ( (allocate()) == EOF )
+ return EOF;
+ setp(0,0);
+
+ } else {
+
+ if ( in_avail() )
+ return (unsigned char) *gptr();
+
+ if ( out_waiting() ) {
+ if ( flushbuf() == EOF )
+ return EOF;
+ }
+
+ }
+
+ // Attempt to fill the buffer.
+
+ int result = fillbuf();
+ if ( result == EOF ) {
+ // disable get area
+ setg(0,0,0);
+ return EOF;
+ }
+
+ return (unsigned char) *gptr();
+
+}
+
+int gzfilebuf::overflow( int c ) {
+
+ if ( !is_open() || !(mode & ios::out) )
+ return EOF;
+
+ if ( !base() ) {
+ if ( allocate() == EOF )
+ return EOF;
+ setg(0,0,0);
+ } else {
+ if (in_avail()) {
+ return EOF;
+ }
+ if (out_waiting()) {
+ if (flushbuf() == EOF)
+ return EOF;
+ }
+ }
+
+ int bl = blen();
+ setp( base(), base() + bl);
+
+ if ( c != EOF ) {
+
+ *pptr() = c;
+ pbump(1);
+
+ }
+
+ return 0;
+
+}
+
+int gzfilebuf::sync() {
+
+ if ( !is_open() )
+ return EOF;
+
+ if ( out_waiting() )
+ return flushbuf();
+
+ return 0;
+
+}
+
+int gzfilebuf::flushbuf() {
+
+ int n;
+ char *q;
+
+ q = pbase();
+ n = pptr() - q;
+
+ if ( gzwrite( file, q, n) < n )
+ return EOF;
+
+ setp(0,0);
+
+ return 0;
+
+}
+
+int gzfilebuf::fillbuf() {
+
+ int required;
+ char *p;
+
+ p = base();
+
+ required = blen();
+
+ int t = gzread( file, p, required );
+
+ if ( t <= 0) return EOF;
+
+ setg( base(), base(), base()+t);
+
+ return t;
+
+}
+
+gzfilestream_common::gzfilestream_common() :
+ ios( gzfilestream_common::rdbuf() )
+{ }
+
+gzfilestream_common::~gzfilestream_common()
+{ }
+
+void gzfilestream_common::attach( int fd, int io_mode ) {
+
+ if ( !buffer.attach( fd, io_mode) )
+ clear( ios::failbit | ios::badbit );
+ else
+ clear();
+
+}
+
+void gzfilestream_common::open( const char *name, int io_mode ) {
+
+ if ( !buffer.open( name, io_mode ) )
+ clear( ios::failbit | ios::badbit );
+ else
+ clear();
+
+}
+
+void gzfilestream_common::close() {
+
+ if ( !buffer.close() )
+ clear( ios::failbit | ios::badbit );
+
+}
+
+gzfilebuf *gzfilestream_common::rdbuf() {
+
+ return &buffer;
+
+}
+
+gzifstream::gzifstream() :
+ ios( gzfilestream_common::rdbuf() )
+{
+ clear( ios::badbit );
+}
+
+gzifstream::gzifstream( const char *name, int io_mode ) :
+ ios( gzfilestream_common::rdbuf() )
+{
+ gzfilestream_common::open( name, io_mode );
+}
+
+gzifstream::gzifstream( int fd, int io_mode ) :
+ ios( gzfilestream_common::rdbuf() )
+{
+ gzfilestream_common::attach( fd, io_mode );
+}
+
+gzifstream::~gzifstream() { }
+
+gzofstream::gzofstream() :
+ ios( gzfilestream_common::rdbuf() )
+{
+ clear( ios::badbit );
+}
+
+gzofstream::gzofstream( const char *name, int io_mode ) :
+ ios( gzfilestream_common::rdbuf() )
+{
+ gzfilestream_common::open( name, io_mode );
+}
+
+gzofstream::gzofstream( int fd, int io_mode ) :
+ ios( gzfilestream_common::rdbuf() )
+{
+ gzfilestream_common::attach( fd, io_mode );
+}
+
+gzofstream::~gzofstream() { }
--- /dev/null
+
+#ifndef _zfstream_hxx
+#define _zfstream_hxx
+
+#include <fstream.h>
+
+#include "zlib/zlib.h"
+#include "Include/fg_stl_config.h"
+
+class gzfilebuf : public streambuf {
+
+public:
+
+ gzfilebuf( );
+ virtual ~gzfilebuf();
+
+ gzfilebuf *open( const char *name, int io_mode );
+ gzfilebuf *attach( int file_descriptor, int io_mode );
+ gzfilebuf *close();
+
+ int setcompressionlevel( short comp_level );
+ int setcompressionstrategy( short comp_strategy );
+
+ inline int is_open() const { return (file !=NULL); }
+
+ virtual streampos seekoff( streamoff, ios::seek_dir, int );
+
+ virtual int sync();
+
+protected:
+
+ virtual int underflow();
+ virtual int overflow( int = EOF );
+
+private:
+
+ gzFile file;
+ short mode;
+ short own_file_descriptor;
+
+ int flushbuf();
+ int fillbuf();
+
+};
+
+class gzfilestream_common : virtual public ios {
+
+// friend class gzifstream;
+ friend class gzofstream;
+ friend gzofstream &setcompressionlevel( gzofstream &, int );
+ friend gzofstream &setcompressionstrategy( gzofstream &, int );
+
+public:
+ virtual ~gzfilestream_common();
+
+ void attach( int fd, int io_mode );
+ void open( const char *name, int io_mode );
+ void close();
+
+protected:
+ gzfilestream_common();
+
+ gzfilebuf *rdbuf();
+
+private:
+
+ gzfilebuf buffer;
+
+};
+
+class gzifstream : public gzfilestream_common, public istream {
+
+public:
+
+ gzifstream();
+ gzifstream( const char *name, int io_mode = ios::in );
+ gzifstream( int fd, int io_mode = ios::in );
+
+ virtual ~gzifstream();
+
+};
+
+class gzofstream : public gzfilestream_common, public ostream {
+
+public:
+
+ gzofstream();
+ gzofstream( const char *name, int io_mode = ios::out );
+ gzofstream( int fd, int io_mode = ios::out );
+
+ virtual ~gzofstream();
+
+};
+
+template<class T> class gzomanip {
+ friend gzofstream &operator << _FG_NULL_TMPL_ARGS (gzofstream &, const gzomanip<T> &);
+public:
+ gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { }
+private:
+ gzofstream &(*func)(gzofstream &, T);
+ T val;
+};
+
+template<class T> gzofstream &operator<<(gzofstream &s,
+ const gzomanip<T> &m) {
+ return (*m.func)(s, m.val);
+
+}
+
+inline gzofstream &setcompressionlevel( gzofstream &s, int l ) {
+ (s.rdbuf())->setcompressionlevel(l);
+ return s;
+}
+
+inline gzofstream &setcompressionstrategy( gzofstream &s, int l ) {
+ (s.rdbuf())->setcompressionstrategy(l);
+ return s;
+}
+
+inline gzomanip<int> setcompressionlevel(int l)
+{
+ return gzomanip<int>(&setcompressionlevel,l);
+}
+
+inline gzomanip<int> setcompressionstrategy(int l)
+{
+ return gzomanip<int>(&setcompressionstrategy,l);
+}
+
+#endif // _zfstream_hxx
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