libs-base/Tools/cvtenc.m

/* This tool converts a file containing a string to a C String encoding.
   Copyright (C) 2002 Free Software Foundation, Inc.

   Written by:  Richard Frith-Macdonald <richard@brainstorm.co.uk>
   Created: April 2002

   This file is part of the GNUstep Project

   This library 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.
    
   You should have received a copy of the GNU General Public  
   License along with this library; see the file COPYING.LIB.
   If not, write to the Free Software Foundation,
   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

   */

#include "config.h"
#include	<Foundation/Foundation.h>
#include	<Foundation/NSArray.h>
#include	<Foundation/NSData.h>
#include	<Foundation/NSException.h>
#include	<Foundation/NSString.h>
#include	<Foundation/NSProcessInfo.h>
#include	<Foundation/NSUserDefaults.h>
#include	<Foundation/NSDebug.h>
#include	<Foundation/NSFileHandle.h>
#include	<Foundation/NSAutoreleasePool.h>


int
main(int argc, char** argv, char **env)
{
  NSAutoreleasePool	*pool;
  NSProcessInfo		*proc;
  NSArray		*args;
  unsigned		i;

#ifdef GS_PASS_ARGUMENTS
  [NSProcessInfo initializeWithArguments: argv count: argc environment: env];
#endif
  pool = [NSAutoreleasePool new];
  proc = [NSProcessInfo processInfo];
  if (proc == nil)
    {
      NSLog(@"defaults: unable to get process information!\n");
      [pool release];
      exit(0);
    }

  args = [proc arguments];

  if ([args count] <= 1)
    {
      NSLog(@"No file names given to convert.");
    }
  else
    {
      NSString		*n;
      NSStringEncoding	enc = 0;

      n = [[NSUserDefaults standardUserDefaults] stringForKey: @"Encoding"];
      if (n == nil)
	{
	  enc = [NSString defaultCStringEncoding];
	}
      else
	{
	  NSStringEncoding	*e;
	  NSMutableString	*names;

	  names = [NSMutableString stringWithCapacity: 1024];
	  e = [NSString availableStringEncodings];
	  while (*e != 0)
	    {
	      NSString	*name = [NSString localizedNameOfStringEncoding: *e];

	      [names appendFormat: @"  %@\n", name];
	      if ([n isEqual: name] == YES)
		{
		  enc = *e;
		  break;
		}
	      e++;
	    }
	  if (enc == 0)
	    {
	      NSLog(@"defaults: unable to find encoding '%@'!\n"
		@"Known encoding names are -\n%@", n, names);
	      [pool release];
	      exit(0);
	    }
	}

      for (i = 1; i < [args count]; i++)
	{
	  NSString	*file = [args objectAtIndex: i];

	  if ([file isEqual: @"-Encoding"] == YES)
	    {
	      i++;
	      continue;
	    }
	  NS_DURING
	    {
	      NSData	*myData;
	      NSString	*myString;

	      myString = [NSString stringWithContentsOfFile: file];
	      myData = [myString dataUsingEncoding: enc
			      allowLossyConversion: NO];
	      if (myData == nil)
		{
		  NSLog(@"Encoding conversion failed.", file);
		}
	      else
		{
		  NSFileHandle	*out;

		  out = [NSFileHandle fileHandleWithStandardOutput];
		  [out writeData: myData];
		  [out synchronizeFile];
		}
	    }
	  NS_HANDLER
	    {
	      NSLog(@"Converting '%@' - %@", file, [localException reason]);
	    }
	  NS_ENDHANDLER
	}
    }
  [pool release];
  return 0;
}