/*!
  @header ECStringUtils
  @abstract Module of Encore
 
  @availability OS X, GNUstep
  @copyright 2004, 2005, 2006 Oliver Langer

  Author: Oliver Langer

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA

  <pre>
  -------------------------------------------------------------------------
  Modification history

  05.02.06 ola     initial version
  22.08.06 ola     license changed
  -------------------------------------------------------------------------
  </pre>
*/

#include <Encore/ECStringUtils.h>
#include <Encore/ECExceptions.h>
#include <Encore/ECMemory.h>

@implementation NSString (ECStringUtils)

- (NSArray *) splitStringUsingDelimiter: (NSString *) delimiter {
  NSMutableArray *toReturn = [[NSMutableArray alloc] init];
  NSScanner *scanner;
  NSString *nextSubString;
  BOOL delimFound;
  BOOL contentAvailable;
  
  if( nil == delimiter ) {
    [[[ECIllegalArgumentException alloc] 
      initWithArgumentInfo: @"ECStringUtils::splitStringUsingDelimiter:"\
        " Parameter delimiter equals nil!"]
      raise];
  }
  
  
  EC_AUTORELEASEPOOL_BEGIN
    scanner = [[[NSScanner alloc] initWithString: (NSString *) self] autorelease];
    [scanner setCharactersToBeSkipped: nil];
    
    do {
      contentAvailable = [scanner 
        scanUpToString: delimiter
        intoString: &nextSubString];
      
      if( contentAvailable ) {
        [toReturn addObject: nextSubString];
      } else {
        [toReturn addObject: @""];
      }
      
      /* skip delimiter: */
      delimFound = [scanner scanString: delimiter intoString: NULL];
    } while( delimFound );
        
  EC_AUTORELEASEPOOL_END
  
  return toReturn;
}

@end
