64 lines
1.5 KiB
Objective-C
64 lines
1.5 KiB
Objective-C
//
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// NSString+HTMLKit.m
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// HTMLKit
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//
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// Created by Iska on 02/03/15.
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// Copyright (c) 2015 BrainCookie. All rights reserved.
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//
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#import "NSString+HTMLKit.h"
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NS_INLINE BOOL isHtmlWhitespaceChar(char c)
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{
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return c == ' ' || c == '\t' || c == '\n' || c == '\f' || c == '\r';
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}
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@implementation NSString (HTMLKit)
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- (BOOL)isEqualToStringIgnoringCase:(NSString *)aString
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{
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return [self caseInsensitiveCompare:aString] == NSOrderedSame;
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}
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- (BOOL)isEqualToAny:(NSString *)first, ... NS_REQUIRES_NIL_TERMINATION
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{
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va_list list;
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va_start(list, first);
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for (NSString *next = first; next != nil; next = va_arg(list, NSString *)) {
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if ([self isEqualToString:next]) {
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return YES;
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}
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}
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va_end(list);
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return NO;
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}
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- (BOOL)hasPrefixIgnoringCase:(NSString *)aString
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{
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NSRange reange = [self rangeOfString:aString
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options:NSAnchoredSearch|NSCaseInsensitiveSearch];
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return reange.location != NSNotFound;
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}
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- (BOOL)isHTMLWhitespaceString
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{
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NSCharacterSet *set = [[NSCharacterSet characterSetWithCharactersInString:@" \t\n\f\r"] invertedSet];
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return [self rangeOfCharacterFromSet:set].location == NSNotFound;
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}
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- (BOOL)containsHTMLWhitespace
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{
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NSCharacterSet *set = [NSCharacterSet characterSetWithCharactersInString:@" \t\n\f\r"];
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return [self rangeOfCharacterFromSet:set].location != NSNotFound;
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}
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- (NSUInteger)leadingWhitespaceLength
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{
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const char *str = self.UTF8String;
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size_t idx = 0;
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while (isHtmlWhitespaceChar(*str)) { str++; idx++; }
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return idx;
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}
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@end
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