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/*
* Copyright (c) 2008-2012 Martin Hedenfalk <martin@vicoapp.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "ViScope.h"
#import "NSString-scopeSelector.h"
@implementation ViScope
@synthesize range = _range;
@synthesize scopes = _scopes;
@synthesize attributes = _attributes;
+ (ViScope *)scopeWithScopes:(NSArray *)scopesArray range:(NSRange)aRange
{
return [[[ViScope alloc] initWithScopes:scopesArray range:aRange] autorelease];
}
- (ViScope *)initWithScopes:(NSArray *)scopesArray
range:(NSRange)aRange
{
if ((self = [super init]) != nil) {
_scopes = [scopesArray retain]; // XXX: retain or copy?
_range = aRange;
}
return self;
}
- (void)dealloc
{
[_scopes release];
[_attributes release];
[super dealloc];
}
- (int)compareBegin:(ViScope *)otherContext
{
if (self == otherContext)
return 0;
if (_range.location < otherContext.range.location)
return -1;
if (_range.location > otherContext.range.location)
return 1;
if (_range.length > otherContext.range.length)
return -1;
if (_range.length < otherContext.range.length)
return 1;
return 0;
}
- (NSString *)description
{
return [NSString stringWithFormat:@"<ViScope %p %@: %@>",
self, NSStringFromRange(_range),
[_scopes componentsJoinedByString:@" "]];
}
- (id)copyWithZone:(NSZone *)zone
{
return [[[self class] allocWithZone:zone] initWithScopes:_scopes range:_range];
}
- (u_int64_t)match:(NSString *)scopeSelector
{
if (scopeSelector == nil)
return 1ULL;
return [scopeSelector matchesScopes:_scopes];
}
- (NSString *)bestMatch:(NSArray *)scopeSelectors
{
NSString *foundScopeSelector = nil;
NSString *scopeSelector;
u_int64_t highest_rank = 0;
for (scopeSelector in scopeSelectors) {
u_int64_t rank = [self match:scopeSelector];
if (rank > highest_rank) {
foundScopeSelector = scopeSelector;
highest_rank = rank;
}
}
return foundScopeSelector;
}
- (BOOL)addScopeComponent:(NSString *)scopeComponent
{
if (![_scopes containsObject:scopeComponent]) {
[self setScopes:[_scopes arrayByAddingObject:scopeComponent]];
return YES;
}
return NO;
}
@end
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