FoundationAdditions.m from redshed at Krugle
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/* FoundationAdditions.m created by lindberg on Mon 20-Dec-1999 */
/*-
* Copyright (c) 2002 Carl Lindberg and Mike Gentry
* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS ``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 COPYRIGHT HOLDERS OR CONTRIBUTORS 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.
*/
/* NOTE: Do not put any code dealing with anything other than Foundation in here.
* This class is used by TGen also. So has to be pure Foundation.
*/
#import "FoundationAdditions.h"
#import <Foundation/Foundation.h>
#import "NSString+MiscAdditions.h"
/* Writes to stderr */
void ErrVPrintf(NSString *format, va_list arguments)
{
NSString *logString = [[NSString alloc] initWithFormat:format arguments:arguments];
fwrite([logString cString], 1, [logString cStringLength], stderr);
if (![logString hasSuffix:@"\n"]) fputc('\n', stdout);
[logString release];
}
void ErrPrintf(NSString *format, ...)
{
va_list arguments;
va_start(arguments, format);
ErrVPrintf(format, arguments);
va_end(arguments);
}
void VPrintf(NSString *format, va_list arguments)
{
NSString *logString = [[NSString alloc] initWithFormat:format arguments:arguments];
fwrite([logString cString], 1, [logString cStringLength], stdout);
if (![logString hasSuffix:@"\n"]) fputc('\n', stdout);
[logString release];
}
void Printf(NSString *format, ...)
{
va_list arguments;
va_start(arguments, format);
VPrintf(format, arguments);
va_end(arguments);
}
@interface NSObject (WarningAvoidance)
- (NSString *)name; // method on EOAttribute/EOEntity etc.
- (id)valueForKey:(NSString *)key;
- (id)valueForKeyPath:(NSString *)keyPath;
@end
@implementation NSArray (FoundationAdditions)
- (NSArray *)reversedArray
{
return [[self reverseObjectEnumerator] allObjects];
}
// does an @reversedArray KeyValue key
- (id)computeReversedArrayForKey:(NSString *) key
{
if ([key length] == 0)
return [self reversedArray];
else
return [[self reversedArray] valueForKeyPath:key];
}
static int sortByName(id obj1, id obj2, void *context)
{
return [(NSString *)[obj1 valueForKey:@"name"] compare:[obj2 valueForKey:@"name"]];
}
// does an @sortedNameArray KeyValue key
- (id)computeSortedNameArrayForKey:(NSString *)key
{
if ([key length] == 0)
return [self sortedArrayUsingFunction:sortByName context:NULL];
else
return [[self sortedArrayUsingFunction:sortByName context:NULL] valueForKeyPath:key];
}
// does an @sortedStringArray KeyValue key
- (id)computeSortedStringArrayForKey:(NSString *)key
{
if ([key length] == 0)
return [self sortedArrayUsingSelector:@selector(compare:)];
else
return [[self sortedArrayUsingSelector:@selector(compare:)] valueForKeyPath:key];
}
/*"
* Calls -#performSelector: on each object in the receiver, and returns an
* array of the return values from the method calls. If a result is nil,
* it is not added to the array.
"*/
- (NSArray *)arrayByMakingObjectsPerformSelector:(SEL)aSelector
{
return [self arrayByMakingObjectsPerformSelector:aSelector withObject:nil withObject:nil];
}
/*"
* Calls -#performSelector:withObject: on each object in the receiver, and
* returns an array of the return values from the method calls. If a
* result is nil, it is not added to the array.
"*/
- (NSArray *)arrayByMakingObjectsPerformSelector:(SEL)aSelector withObject:anObject
{
return [self arrayByMakingObjectsPerformSelector:aSelector withObject:anObject withObject:nil];
}
/*"
* Calls -#performSelector:withObject:withObject: on each object in the
* receiver, and returns an array of the return values from the method
* calls. If a result is nil, it is not added to the array.
"*/
- (NSArray *)arrayByMakingObjectsPerformSelector:(SEL)aSelector withObject:anObject
withObject:anObject2
{
unsigned i, count = [self count];
NSMutableArray *array = [NSMutableArray arrayWithCapacity:count];
for(i=0; i<count; i++)
{
id object = [self objectAtIndex:i];
id value = [object performSelector:aSelector withObject:anObject withObject:anObject2];
if (value != nil) {
[array addObject:value];
}
}
return array;
}
@end
@implementation NSString (FoundationAdditions)
- (NSString *)initialCapitalString
{
NSRange firstLetterRange;
NSString *firstLetterString;
NSString *restOfString;
if ([self length] == 0) return self;
firstLetterRange = [self rangeOfComposedCharacterSequenceAtIndex:0];
firstLetterString = [[self substringWithRange:firstLetterRange] uppercaseString];
restOfString = [self substringFromIndex:NSMaxRange(firstLetterRange)];
return [firstLetterString stringByAppendingString:restOfString];
}
- (NSString *)beautifyString
{
NSString *newString;
NSCharacterSet *invalidSet;
NSMutableCharacterSet *validSet = [[[NSCharacterSet letterCharacterSet] mutableCopy] autorelease];
[validSet formUnionWithCharacterSet:[NSCharacterSet whitespaceCharacterSet]];
[validSet formUnionWithCharacterSet:[NSCharacterSet decimalDigitCharacterSet]];
invalidSet = [[[validSet copy] autorelease] invertedSet];
newString = [self stringByReplacingEveryOccurrenceOfCharactersFromSet:invalidSet withString:@" "];
if ( [newString rangeOfString:@" "].location != NSNotFound ) {
newString = [newString stringByTrimmingWhitespace];
newString = [newString stringBySquashingWhitespace];
if ( [newString rangeOfString:@" "].location != NSNotFound ) {
NSArray *components = [newString componentsSeparatedByString:@" "];
components = [components arrayByMakingObjectsPerformSelector:@selector(initialCapitalString)];
newString = [components componentsJoinedByString:@""];
}
}
return [newString initialCapitalString];
}
@end
@implementation NSFileManager (FoundationAdditions)
- (BOOL)directoryExistsAtPath:(NSString *)path
{
BOOL isDir = NO;
BOOL isFile = [self fileExistsAtPath:path isDirectory:&isDir];
return (isFile && isDir);
}
- (BOOL)regularFileExistsAtPath:(NSString *)path
{
BOOL isDir = NO;
BOOL isFile = [self fileExistsAtPath:path isDirectory:&isDir];
return (isFile && !isDir);
}
- (NSString *)findFile:(NSString *)filename inSearchPath:(NSArray *)paths
{
int i, count = [paths count];
for (i=0; i<count; i++)
{
NSString *currPath = [paths objectAtIndex:i];
NSString *fullPath = [currPath stringByAppendingPathComponent:filename];
if ([self regularFileExistsAtPath:fullPath])
return fullPath;
}
return nil;
}
- (void)touchPath:(NSString *)filePath
{
NSMutableDictionary *attributes;
attributes = [[NSMutableDictionary alloc] initWithCapacity:1];
[attributes setObject:[NSDate date] forKey:NSFileModificationDate];
[self changeFileAttributes:attributes atPath:filePath];
[attributes release];
}
- (BOOL)deepCreateDirectoryAtPath:(NSString *)path attributes:(NSDictionary *)attributes
{
NSString *parent = [path stringByDeletingLastPathComponent];
if ([parent length] > 0 && ![self directoryExistsAtPath:parent])
{
// May want to ensure owner write permissions here...
if (![self deepCreateDirectoryAtPath:parent attributes:attributes])
return NO;
}
return [self createDirectoryAtPath:path attributes:attributes];
}
@end
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