douglashill

NSString *DHStringFromFloat(CGFloat value)
{
	if (value == CGFLOAT_MAX) return @"max";
	if (value == CGFLOAT_MIN) return @"min";
	return [NSString stringWithFormat:@"%g", value];
}

NSString *DHStringFromPoint_bare(CGPoint point)
{
	return [NSString stringWithFormat:@"%@, %@", DHStringFromFloat(point.x), DHStringFromFloat(point.y)];

douglashill

// HTMLWriter.swift
// Douglas Hill, June 2014

// HTML syntax documentation: http://www.w3.org/TR/html-markup/syntax.html

enum HTMLContent {
	case Element(HTMLElement)
	case Text(String)
}

douglashill

input = "NSHandlesContentAsCompoundValueBindingOption"

list = input.split /(?=[A-Z][a-z])/

if list.first.upcase == list.first
	list.shift
end

puts list.map {|item| item.downcase}.join " "

douglashill

@interface NSObject (DHRecursiveDescription)

- (NSString *)dh_recursiveDescriptionWithRecursion:(id (^)(id obj))recursion;

@end

@implementation NSObject (DHRecursiveDescription)

- (NSString *)dh_recursiveDescriptionWithRecursion:(id (^)(id obj))recursion
{

douglashill

@implementation NSArray (DHShortDescription)

- (NSString *)dh_oneLineDescription
{
	return [NSString stringWithFormat:@"[%@]", [self componentsJoinedByString:@", "]];
}

@end

douglashill

#import <Foundation/Foundation.h>

void printInManyEncodings(u_int8_t hex)
{
	NSData *const data = [NSData dataWithBytes:&hex length:sizeof(hex)];

	NSDictionary *const encodings = @{
								@"ASCII" : @(NSASCIIStringEncoding),
								@"NEXTSTEP" : @(NSNEXTSTEPStringEncoding),
								@"JapaneseEUC" : @(NSJapaneseEUCStringEncoding),

douglashill

static void repeat(NSUInteger repeatCount, void (^blockToRepeat)(void))
{
	if (blockToRepeat == nil) {
		return;
	}
	
	while (repeatCount--) {
		blockToRepeat();
	}
}

douglashill

@import Foundation;

#define ENABLE_LOGGING 1

#if ENABLE_LOGGING
#define DHLog(__FORMAT__, ...) NSLog((__FORMAT__), ##__VA_ARGS__)
#else
#define DHLog(...) do { } while (0)
#endif

douglashill

@import Foundation;

@implementation NSArray (DHAccumulate)

- (id)dh_objectByReducingWithOptions:(NSEnumerationOptions)options usingBlock:(id (^)(id object1, id object2))reductionBlock
{
	if (options & NSEnumerationConcurrent) {
		[NSException raise:NSInvalidArgumentException format:@"Bad things will happen if you try to reduce an array concurrently."];
	}
	

douglashill

@implementation NSColor (DHLuminance)

- (CGFloat)dh_luminance
{
	return 0.3 * [self redComponent] + 0.6 * [self greenComponent] + 0.1 * [self blueComponent];
}

@end

// Example usage for an attributed string: