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/* Definition of class NSRegularExpression
   Copyright (C) 2011 Free Software Foundation, Inc.
   
   This file is part of the GNUstep Library.
   
   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 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
   Library 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 02111 USA.
*/

#ifndef _NSRegularExpression_h_GNUSTEP_BASE_INCLUDE
#define _NSRegularExpression_h_GNUSTEP_BASE_INCLUDE
#import	<GNUstepBase/GSVersionMacros.h>

#if OS_API_VERSION(GS_API_MACOSX, GS_API_LATEST)

#import	<Foundation/NSObject.h>
#import "GNUstepBase/GSBlocks.h"
#import "GNUstepBase/GSConfig.h"

#if	defined(__cplusplus)
extern "C" {
#endif

@class NSString, NSTextCheckingResult;

typedef NSUInteger NSRegularExpressionOptions;
static const NSRegularExpressionOptions
  NSRegularExpressionCaseInsensitive             = 1<<0;
static const NSRegularExpressionOptions
  NSRegularExpressionAllowCommentsAndWhitespace  = 1<<1;
static const NSRegularExpressionOptions
  NSRegularExpressionIgnoreMetacharacters        = 1<<2;
static const NSRegularExpressionOptions
  NSRegularExpressionDotMatchesLineSeparators    = 1<<3;
static const NSRegularExpressionOptions
  NSRegularExpressionAnchorsMatchLines           = 1<<4;
static const NSRegularExpressionOptions
  NSRegularExpressionUseUnixLineSeparators       = 1<<5;
static const NSRegularExpressionOptions
  NSRegularExpressionUseUnicodeWordBoundaries    = 1<<6;

typedef NSUInteger NSMatchingFlags;
static const NSMatchingFlags NSMatchingProgress      = 1<<0;
static const NSMatchingFlags NSMatchingCompleted     = 1<<1;
static const NSMatchingFlags NSMatchingHitEnd        = 1<<2;
static const NSMatchingFlags NSMatchingRequiredEnd   = 1<<3;
static const NSMatchingFlags NSMatchingInternalError = 1<<4;

typedef NSUInteger NSMatchingOptions;
static const NSMatchingOptions NSMatchingReportProgress         = 1<<0;
static const NSMatchingOptions NSMatchingReportCompletion       = 1<<1;
static const NSMatchingOptions NSMatchingAnchored               = 1<<2;
static const NSMatchingOptions NSMatchingWithTransparentBounds  = 1<<3;
static const NSMatchingOptions NSMatchingWithoutAnchoringBounds = 1<<4;


DEFINE_BLOCK_TYPE(GSRegexBlock, void, NSTextCheckingResult*, NSMatchingFlags, BOOL*);

#ifndef GSREGEXTYPE
#  define GSREGEXTYPE void
#endif

@interface NSRegularExpression : NSObject <NSCoding, NSCopying>
{
#if	GS_EXPOSE(NSRegularExpression)
  @private
  GSREGEXTYPE *regex;
  NSRegularExpressionOptions options;
#endif
#if     GS_NONFRAGILE
#else
  /* Pointer to private additional data used to avoid breaking ABI
   * when we don't have the non-fragile ABI available.
   * Use this mechanism rather than changing the instance variable
   * layout (see Source/GSInternal.h for details).
   */
  @private id _internal GS_UNUSED_IVAR;
#endif
}
// GNUstep, like OS X, uses libicu to provide the NSRegularExpression
// implementation.  If you have configured GNUstep without this support then it
// will not work, so these methods are hidden.
#if GS_USE_ICU || GS_UNSAFE_REGEX
+ (NSRegularExpression*)regularExpressionWithPattern: (NSString*)aPattern
                                             options: (NSRegularExpressionOptions)opts
                                               error: (NSError**)e;
- initWithPattern: (NSString*)aPattern
          options: (NSRegularExpressionOptions)opts
            error: (NSError**)e;
+ (NSRegularExpression*)regularExpressionWithPattern: (NSString*)aPattern
                                             options: (NSRegularExpressionOptions)opts
                                               error: (NSError**)e;
- initWithPattern: (NSString*)aPattern
          options: (NSRegularExpressionOptions)opts
            error: (NSError**)e;
- (NSString*)pattern;
- (void)enumerateMatchesInString: (NSString*)string
                         options: (NSMatchingOptions)options
                           range: (NSRange)range
                      usingBlock: (GSRegexBlock)block;
- (NSUInteger)numberOfMatchesInString: (NSString*)string
                              options: (NSMatchingOptions)options
                                range: (NSRange)range;

- (NSTextCheckingResult*)firstMatchInString: (NSString*)string
                                    options: (NSMatchingOptions)options
                                      range: (NSRange)range;
- (NSArray*)matchesInString: (NSString*)string
                    options: (NSMatchingOptions)options
                      range: (NSRange)range;
- (NSRange)rangeOfFirstMatchInString: (NSString*)string
                             options: (NSMatchingOptions)options
                               range: (NSRange)range;
- (NSUInteger)replaceMatchesInString: (NSMutableString*)string
                             options: (NSMatchingOptions)options
                               range: (NSRange)range
                        withTemplate: (NSString*)templat;
- (NSString*)stringByReplacingMatchesInString: (NSString*)string
                                      options: (NSMatchingOptions)options
                                        range: (NSRange)range
                                 withTemplate: (NSString*)templat;
- (NSString*)replacementStringForResult: (NSTextCheckingResult*)result
                               inString: (NSString*)string
                                 offset: (NSInteger)offset
                               template: (NSString*)templat;
#if GS_HAS_DECLARED_PROPERTIES
@property (readonly) NSRegularExpressionOptions options;
@property (readonly) NSUInteger numberOfCaptureGroups;
#else
- (NSRegularExpressionOptions)options;
- (NSUInteger)numberOfCaptureGroups;
#endif
#endif // GS_USE_ICU
@end

#if	defined(__cplusplus)
}
#endif

#endif	/* GS_API_MACOSX */

#endif	/* _NSRegualrExpression_h_GNUSTEP_BASE_INCLUDE */