[CHANGE] Add MiscMerge directly to project (back in the rentzsch.com …

…svn+trac days it was in its own peer folder).

MiscMerge/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>English</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleName</key>
+	<string>${PRODUCT_NAME}</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>com.yourcompany.yourcocoaframework</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>FMWK</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1.0</string>
+	<key>NSPrincipalClass</key>
+	<string></string>
+</dict>
+</plist>

MiscMerge/KeyValue+MiscMerge.h

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+//
+//  KeyValue+MiscMerge.h
+//
+//	Written by Don Yacktman and Carl Lindberg
+//
+//	Copyright 2001-2004 by Don Yacktman and Carl Lindberg.
+//	All rights reserved.
+//
+//      This notice may not be removed from this source code.
+//
+//	This header is included in the MiscKit by permission from the author
+//	and its use is governed by the MiscKit license, found in the file
+//	"License.rtf" in the MiscKit distribution.  Please refer to that file
+//	for a list of all applicable permissions and restrictions.
+//	
+
+#import <Foundation/NSObject.h>
+
+@interface NSObject (MiscMergeHasKey)
+
+- (BOOL)hasMiscMergeKey:(NSString *)key;
+- (BOOL)hasMiscMergeKeyPath:(NSString *)keyPath;
+
+@end

MiscMerge/KeyValue+MiscMerge.m

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+//
+//  KeyValue+MiscMerge.m
+//
+//	Written by Don Yacktman and Carl Lindberg
+//
+//	Copyright 2001-2004 by Don Yacktman and Carl Lindberg.
+//	All rights reserved.
+//
+//      This notice may not be removed from this source code.
+//
+//	This header is included in the MiscKit by permission from the author
+//	and its use is governed by the MiscKit license, found in the file
+//	"License.rtf" in the MiscKit distribution.  Please refer to that file
+//	for a list of all applicable permissions and restrictions.
+//
+
+#import "KeyValue+MiscMerge.h"
+#import <Foundation/NSObjCRuntime.h>
+#import <Foundation/NSDictionary.h>
+#import <Foundation/NSArray.h>
+#import <Foundation/NSString.h>
+#import <Foundation/NSCharacterSet.h>
+#import <stdlib.h> // for NULL os OSX
+#if GNU_RUNTIME
+#import <objc/objc-api.h>
+static Ivar_t class_getInstanceVariable(Class aClass, const char *name);
+#else
+#import <objc/objc-runtime.h>
+#endif
+
+@interface NSObject (WarningAvoidance)
++ (BOOL)accessInstanceVariablesDirectly;
+@end
+
+@implementation NSObject (MiscMergeHasKey)
+
+- (BOOL)hasMiscMergeKeyPath:(NSString *)keyPath
+{
+    static NSCharacterSet *dotSet;
+
+    NSString *key = keyPath;
+    NSRange dotRange;
+
+    if ( dotSet == nil ) {
+        dotSet = [[NSCharacterSet characterSetWithRange:NSMakeRange((unsigned int)'.', 1)] retain];
+    }
+
+    dotRange = [keyPath rangeOfCharacterFromSet:dotSet];
+
+    if (dotRange.length > 0)
+    {
+        key = [keyPath substringToIndex:dotRange.location];
+    }
+
+    return [self hasMiscMergeKey:key];
+}
+
+- (BOOL)hasMiscMergeKey:(NSString *)key
+{
+    SEL keySelector;
+
+    if ([key length] == 0) return NO;
+
+    keySelector = NSSelectorFromString(key);
+
+    return (keySelector != NULL && [self respondsToSelector:keySelector]) ||
+        ([[self class] accessInstanceVariablesDirectly] &&
+         class_getInstanceVariable([self class], [key cString]));
+}
+
+@end
+
+@implementation NSDictionary (MiscMergeHasKey)
+
+- (BOOL)hasMiscMergeKey:(NSString *)key
+{
+    return ([self objectForKey:key] != nil)? YES : NO;
+}
+
+@end
+
+@implementation NSArray (MiscMergeHasKey)
+
+- (BOOL)hasMiscMergeKey:(NSString *)key
+{
+    if ([key isEqualToString:@"count"]) return YES;
+    if ([key hasPrefix:@"@"]) return YES;
+    if ([self count] == 0) return YES; //Hmm
+    return [[self objectAtIndex:0] hasMiscMergeKey:key];
+}
+
+@end
+
+#if GNU_RUNTIME
+
+static Ivar_t class_getInstanceVariable(Class aClass, const char *name)
+{
+    Class currClass;
+
+    if (name == NULL) return NULL;
+
+    for (currClass = aClass; currClass != Nil; currClass = currClass->super_class)
+    {
+        struct objc_ivar_list *ivars = aClass->ivars;
+        int pos;
+
+        for (pos = 0; pos < ivars->ivar_count; pos++)
+        {
+            Ivar_t currIvar = &(ivars->ivar_list[pos]);
+
+            if (strcmp(currIvar->ivar_name, name) == 0) {
+                return currIvar;
+            }
+        }
+    }
+
+    return NULL;
+}
+
+#endif GNU_RUNTIME