Moved everything from Lib to simgear

2009-09-16 08:06:28 +02:00
parent 708e745cfd
commit 778c3ab25c
156 changed files with 0 additions and 0 deletions
@@ -0,0 +1,157 @@
+// 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.
+//
+// $Id$
+
+#include <ctype.h> // isspace()
+#include <Misc/fgstream.hxx>
+
+fg_gzifstream::fg_gzifstream()
+    : istream(&gzbuf)
+{
+}
+
+//-----------------------------------------------------------------------------
+//
+// Open a possibly gzipped file for reading.
+//
+fg_gzifstream::fg_gzifstream( const string& name, ios_openmode io_mode )
+    : istream(&gzbuf)
+{
+    this->open( name, io_mode );
+}
+
+//-----------------------------------------------------------------------------
+//
+// Attach a stream to an already opened file descriptor.
+//
+fg_gzifstream::fg_gzifstream( int fd, ios_openmode io_mode )
+    : istream(&gzbuf)
+{
+    gzbuf.attach( fd, 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, ios_openmode io_mode )
+{
+    gzbuf.open( name.c_str(), io_mode );
+    if ( ! gzbuf.is_open() )
+    {
+	string s = name;
+	if ( s.substr( s.length() - 3, 3 ) == ".gz" )
+	{
+	    // remove ".gz" suffix
+	    s.replace( s.length() - 3, 3, "" );
+// 	    s.erase( s.length() - 3, 3 );
+	}
+	else
+	{
+	    // Append ".gz" suffix
+	    s += ".gz";
+	}
+
+	// Try again.
+	gzbuf.open( s.c_str(), io_mode );
+    }
+}
+
+void
+fg_gzifstream::attach( int fd, ios_openmode io_mode )
+{
+    gzbuf.attach( fd, io_mode );
+}
+
+//
+// Manipulators
+//
+
+istream&
+skipeol( istream& in )
+{
+    char c = '\0';
+    // skip to end of line.
+
+#ifdef __MWERKS__
+    while ( in.get(c) && c != '\0' ) {
+#else
+    while ( in.get(c) ) {
+#endif
+    	if ( (c == '\n') || (c == '\r') ) {
+	    break;
+	}	
+    }
+
+    return in;
+}
+
+istream&
+skipws( istream& in ) {
+    char c;
+#ifdef __MWERKS__
+    while ( in.get(c) && c != '\0' ) {
+#else
+    while ( in.get(c) ) {
+#endif
+
+#ifdef __MWERKS__
+	if ( ! isspace( c ) && c != '\n' ) {
+#else
+	if ( ! isspace( c ) ) {
+#endif
+	    // put pack the non-space character
+	    in.putback(c);
+	    break;
+	}
+    }
+    return in;
+}
+
+istream&
+skipcomment( istream& in )
+{
+    while ( in )
+    {
+	// skip whitespace
+#ifdef __MWERKS__
+	in >> ::skipws;
+#else
+	in >> skipws;
+#endif
+
+	char c;
+	if ( in.get( c ) && c != '#' )
+	{
+	    // not a comment
+	    in.putback(c);
+	    break;
+	}
+	in >> skipeol;
+    }
+    return in;
+}
+