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UtilityFunctions.m
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//
// UtilityFunctions.m
//
// Created by Doug Russell on 6/18/10.
// Copyright 2010 Doug Russell. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#import "UtilityFunctions.h"
const double kRadPerDeg = 0.0174532925199433; // pi / 180
double ToRadians(double degrees)
{
return (degrees * kRadPerDeg);
}
NSString * AppDirectoryCachePath()
{
NSString *path = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory,
NSUserDomainMask,
YES) lastObject];
return path;
}
NSString * AppDirectoryCachePathAppended(NSString * pathToAppend)
{
return [AppDirectoryCachePath() stringByAppendingPathComponent:pathToAppend];
}
NSString * TempFileName()
{
return [NSString stringWithFormat:@"%f.bin", CFAbsoluteTimeGetCurrent()];
}
NSString * TempFolderName()
{
return [NSString stringWithFormat:@"%f", CFAbsoluteTimeGetCurrent()];
}
NSString * AppDirectoryDocumentsPath()
{
NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
NSUserDomainMask,
YES) lastObject];
return path;
}
NSString * AppDirectoryDocumentsPathAppended(NSString * pathToAppend)
{
return [AppDirectoryDocumentsPath() stringByAppendingPathComponent:pathToAppend];
}
NSString * AppDirectoryLibraryPath()
{
NSString *path = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory,
NSUserDomainMask,
YES) lastObject];
return path;
}
NSString * AppDirectoryLibraryPathAppended(NSString * pathToAppend)
{
return [AppDirectoryDocumentsPath() stringByAppendingPathComponent:pathToAppend];
}
NSString * EncodeHTMLEntities(NSString * source)
{
NSMutableString * escaped = [NSMutableString stringWithString:source];
NSArray * codes =
[NSArray arrayWithObjects:
@" ", @"¡", @"¢", @"£", @"¤", @"¥",
@"¦", @"§", @"¨", @"©", @"ª",@"«",
@"¬", @"­", @"®", @"¯", @"°", @"±", @"²",
@"³", @"´", @"µ", @"¶", @"·", @"¸",
@"¹", @"º", @"»", @"¼", @"½", @"¾",
@"¿", @"À", @"Á", @"Â", @"Ã", @"Ä",
@"Å", @"Æ", @"Ç", @"È", @"É", @"Ê",
@"Ë", @"Ì", @"Í", @"Î", @"Ï", @"Ð",
@"Ñ", @"Ò", @"Ó", @"Ô", @"Õ", @"Ö",
@"×", @"Ø", @"Ù", @"Ú", @"Û", @"Ü",
@"Ý", @"Þ", @"ß", @"à", @"á", @"â",
@"ã", @"ä", @"å", @"æ", @"ç", @"è",
@"é", @"ê", @"ë", @"ì", @"í", @"î",
@"ï", @"ð", @"ñ", @"ò", @"ó", @"ô",
@"õ", @"ö", @"÷", @"ø", @"ù", @"ú",
@"û", @"ü", @"ý", @"þ", @"ÿ", nil];
int count = [codes count];
NSString * character = [NSString stringWithFormat: @"%C", 34];
[escaped replaceOccurrencesOfString:character
withString:@"""
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
character = [NSString stringWithFormat: @"%C", 38];
[escaped replaceOccurrencesOfString:character
withString:@"[[REPLACETHISATTHEEND]]"
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
character = [NSString stringWithFormat: @"%C", 39];
[escaped replaceOccurrencesOfString:character
withString:@"'"
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
character = [NSString stringWithFormat: @"%C", 60];
[escaped replaceOccurrencesOfString:character
withString:@"<"
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
character = [NSString stringWithFormat: @"%C", 62];
[escaped replaceOccurrencesOfString:character
withString:@">"
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
// Html
for(int i = 0; i < count; i++)
{
NSString * character = [NSString stringWithFormat: @"%C", 160 + i];
NSRange range = [source rangeOfString:character];
if(range.location != NSNotFound)
{
[escaped replaceOccurrencesOfString:character
withString:[codes objectAtIndex: i]
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
}
}
[escaped replaceOccurrencesOfString:@"[[REPLACETHISATTHEEND]]"
withString:@"&"
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
return (NSString *)escaped;
}
NSString * DecodeHTMLEntities(NSString * source)
{
NSMutableString * escaped = [NSMutableString stringWithString:source];
NSArray * codes =
[NSArray arrayWithObjects:
@" ", @"¡", @"¢", @"£", @"¤", @"¥",
@"¦", @"§", @"¨", @"©", @"ª",@"«",
@"¬", @"­", @"®", @"¯", @"°", @"±", @"²",
@"³", @"´", @"µ", @"¶", @"·", @"¸",
@"¹", @"º", @"»", @"¼", @"½", @"¾",
@"¿", @"À", @"Á", @"Â", @"Ã", @"Ä",
@"Å", @"Æ", @"Ç", @"È", @"É", @"Ê",
@"Ë", @"Ì", @"Í", @"Î", @"Ï", @"Ð",
@"Ñ", @"Ò", @"Ó", @"Ô", @"Õ", @"Ö",
@"×", @"Ø", @"Ù", @"Ú", @"Û", @"Ü",
@"Ý", @"Þ", @"ß", @"à", @"á", @"â",
@"ã", @"ä", @"å", @"æ", @"ç", @"è",
@"é", @"ê", @"ë", @"ì", @"í", @"î",
@"ï", @"ð", @"ñ", @"ò", @"ó", @"ô",
@"õ", @"ö", @"÷", @"ø", @"ù", @"ú",
@"û", @"ü", @"ý", @"þ", @"ÿ", nil];
int count = [codes count];
NSString * character = [NSString stringWithFormat: @"%C", 34];
[escaped replaceOccurrencesOfString:@"""
withString:character
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
character = [NSString stringWithFormat: @"%C", 39];
[escaped replaceOccurrencesOfString:@"'"
withString:character
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
character = [NSString stringWithFormat: @"%C", 60];
[escaped replaceOccurrencesOfString:@"<"
withString:character
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
character = [NSString stringWithFormat: @"%C", 62];
[escaped replaceOccurrencesOfString:@">"
withString:character
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
// Html
int i;
for(i = 0; i < count; i++)
{
NSRange range = [source rangeOfString:[codes objectAtIndex: i]];
if(range.location != NSNotFound)
{
NSString * character = [NSString stringWithFormat: @"%C", 160 + i];
[escaped replaceOccurrencesOfString:[codes objectAtIndex: i]
withString:character
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
}
}
character = [NSString stringWithFormat: @"%C", 38];
[escaped replaceOccurrencesOfString:@"&"
withString:character
options:NSLiteralSearch
range:NSMakeRange(0, [escaped length])];
// // Decimal & Hex
// NSRange start, finish, searchRange = NSMakeRange(0, [escaped length]);
// i = 0;
//
// while(i < [escaped length])
// {
// start = [escaped rangeOfString:@"&#"
// options:NSCaseInsensitiveSearch
// range:searchRange];
//
// finish = [escaped rangeOfString: @";"
// options: NSCaseInsensitiveSearch
// range: searchRange];
//
// if(start.location != NSNotFound && finish.location != NSNotFound &&
// finish.location > start.location)
// {
// NSRange entityRange = NSMakeRange(start.location, (finish.location - start.location) + 1);
// NSString *entity = [escaped substringWithRange: entityRange];
// NSString *value = [entity substringWithRange: NSMakeRange(2, [entity length] - 2)];
//
// [escaped deleteCharactersInRange: entityRange];
//
// if([value hasPrefix: @"x"])
// {
// int tempInt = 0;
// NSScanner *scanner = [NSScanner scannerWithString: [value substringFromIndex: 1]];
// [scanner scanHexInt: &tempInt];
// [escaped insertString: [NSString stringWithFormat: @"%C", tempInt] atIndex: entityRange.location];
// }
// else
// {
// [escaped insertString: [NSString stringWithFormat: @"%C", [value intValue]] atIndex: entityRange.location];
// }
// i = start.location;
// }
// else i++;
// searchRange = NSMakeRange(i, [escaped length] - i);
// }
return (NSString *)escaped;
}