iska
91 lines
2.1 KiB
Objective-C
91 lines
2.1 KiB
Objective-C
//
|
|
// HTMLSelector.h
|
|
// HTMLKit
|
|
//
|
|
// Created by Iska on 02/05/15.
|
|
// Copyright (c) 2015 BrainCookie. All rights reserved.
|
|
//
|
|
|
|
#import <Foundation/Foundation.h>
|
|
|
|
NS_ASSUME_NONNULL_BEGIN
|
|
|
|
#pragma mark - Attribute Selector Type
|
|
|
|
/**
|
|
Attribute selector type.
|
|
*/
|
|
typedef NS_ENUM(NSUInteger, CSSAttributeSelectorType)
|
|
{
|
|
/** Attribute exists: '[src]' */
|
|
CSSAttributeSelectorExists,
|
|
|
|
/** Attribute has exact value: '[title="HTMLKit"]' */
|
|
CSSAttributeSelectorExactMatch,
|
|
|
|
/** Attribute includes value: '[title~="foo"]' */
|
|
CSSAttributeSelectorIncludes,
|
|
|
|
/** Attribute's value begins with: '[title^="HTML"]' */
|
|
CSSAttributeSelectorBegins,
|
|
|
|
/** Attribute's value ends with: '[title$="Kit"]' */
|
|
CSSAttributeSelectorEnds,
|
|
|
|
/** Attribute's value ends with: '[title*="ML"]' */
|
|
CSSAttributeSelectorContains,
|
|
|
|
/** Attribute's value ends with: '[title|="en"]' */
|
|
CSSAttributeSelectorHyphen,
|
|
|
|
/** Attribute's value does not equal: '[title!="foo"]' */
|
|
CSSAttributeSelectorNot
|
|
};
|
|
|
|
#pragma mark - CSS Nth-Expression
|
|
|
|
/**
|
|
CSS Nth-Expression
|
|
*/
|
|
typedef struct CSSNthExpression
|
|
{
|
|
NSInteger an;
|
|
NSInteger b;
|
|
} CSSNthExpression;
|
|
|
|
NS_INLINE CSSNthExpression CSSNthExpressionMake(NSInteger an, NSInteger b) {
|
|
return (CSSNthExpression){ .an = an, .b = b };
|
|
}
|
|
|
|
extern const CSSNthExpression CSSNthExpressionOdd;
|
|
extern const CSSNthExpression CSSNthExpressionEven;
|
|
extern NSString * _Nonnull NSStringFromNthExpression(CSSNthExpression expression);
|
|
|
|
#pragma mark - Base Selector Class
|
|
|
|
@class HTMLElement;
|
|
|
|
/**
|
|
Base class for all CSS Selector implementations
|
|
*/
|
|
@interface CSSSelector : NSObject
|
|
|
|
/**
|
|
Initializes and returns a new instance of CSS Selector.
|
|
|
|
@param string The selector string which will be parsed.
|
|
@return A new instance of a parsed CSS Selector, `nil` if the string is not a valid selector string.
|
|
*/
|
|
+ (nullable instancetype)selectorWithString:(NSString *)stirng;
|
|
|
|
/**
|
|
Implementations should override this method to provide the selector-sprecific logic for matching elements.
|
|
|
|
@abstract Use one of the concrete subclasses.
|
|
*/
|
|
- (BOOL)acceptElement:(HTMLElement *)element;
|
|
|
|
@end
|
|
|
|
NS_ASSUME_NONNULL_END
|