Add the 3.3.3 sources for class-dump.

class-dump/src/NSString-Extensions.m

+// -*- mode: ObjC -*-
+
+//  This file is part of class-dump, a utility for examining the Objective-C segment of Mach-O files.
+//  Copyright (C) 1997-1998, 2000-2001, 2004-2010 Steve Nygard.
+
+#import "NSString-Extensions.h"
+
+#import "NSData-CDExtensions.h"
+
+@implementation NSString (CDExtensions)
+
++ (NSString *)stringWithFileSystemRepresentation:(const char *)str;
+{
+    // 2004-01-16: I'm don't understand why we need to pass in the length.
+    return [[NSFileManager defaultManager] stringWithFileSystemRepresentation:str length:strlen(str)];
+}
+
++ (NSString *)spacesIndentedToLevel:(NSUInteger)level;
+{
+    return [self spacesIndentedToLevel:level spacesPerLevel:4];
+}
+
++ (NSString *)spacesIndentedToLevel:(NSUInteger)level spacesPerLevel:(NSUInteger)spacesPerLevel;
+{
+    NSString *spaces = @"                                        ";
+    NSString *levelSpaces;
+    NSMutableString *str;
+    NSUInteger l;
+
+    NSParameterAssert(spacesPerLevel <= [spaces length]);
+    levelSpaces = [spaces substringToIndex:spacesPerLevel];
+
+    str = [NSMutableString string];
+    for (l = 0; l < level; l++)
+        [str appendString:levelSpaces];
+
+    return str;
+}
+
++ (NSString *)stringWithUnichar:(unichar)character;
+{
+    return [NSString stringWithCharacters:&character length:1];
+}
+
+- (BOOL)isFirstLetterUppercase;
+{
+    NSRange letterRange;
+
+    letterRange = [self rangeOfCharacterFromSet:[NSCharacterSet letterCharacterSet]];
+    if (letterRange.length == 0)
+        return NO;
+
+    return [[NSCharacterSet uppercaseLetterCharacterSet] characterIsMember:[self characterAtIndex:letterRange.location]];
+}
+
+- (void)print;
+{
+    NSData *data;
+
+    data = [self dataUsingEncoding:NSUTF8StringEncoding];
+    [(NSFileHandle *)[NSFileHandle fileHandleWithStandardOutput] writeData:data];
+}
+
+- (NSString *)executablePathForFilename;
+{
+    NSBundle *bundle;
+    NSString *path;
+
+    // I give up, all the methods dealing with paths seem to resolve symlinks with a vengence.
+    bundle = [NSBundle bundleWithPath:self];
+    if (bundle != nil) {
+        if ([bundle executablePath] == nil)
+            return nil;
+
+        path = [[[bundle executablePath] stringByResolvingSymlinksInPath] stringByStandardizingPath];
+    } else {
+        path = [[self stringByResolvingSymlinksInPath] stringByStandardizingPath];
+    }
+
+    return path;
+}
+
+- (NSString *)SHA1DigestString;
+{
+    return [[[self decomposedStringWithCanonicalMapping] dataUsingEncoding:NSUTF8StringEncoding] SHA1DigestString];
+}
+
+- (BOOL)hasUnderscoreCapitalPrefix;
+{
+    if ([self length] < 2)
+        return NO;
+
+    return [self hasPrefix:@"_"] && [[NSCharacterSet uppercaseLetterCharacterSet] characterIsMember:[self characterAtIndex:1]];
+}
+
+- (NSString *)capitalizeFirstCharacter;
+{
+    if ([self length] < 2)
+        return [self capitalizedString];
+
+    return [NSString stringWithFormat:@"%@%@", [[self substringToIndex:1] capitalizedString], [self substringFromIndex:1]];
+}
+
+@end
+
+@implementation NSMutableString (CDExtensions)
+
+- (void)appendSpacesIndentedToLevel:(NSUInteger)level;
+{
+    [self appendSpacesIndentedToLevel:level spacesPerLevel:4];
+}
+
+- (void)appendSpacesIndentedToLevel:(NSUInteger)level spacesPerLevel:(NSUInteger)spacesPerLevel;
+{
+    NSString *spaces = @"                                        ";
+    NSString *levelSpaces;
+    NSUInteger l;
+
+    NSParameterAssert(spacesPerLevel <= [spaces length]);
+    levelSpaces = [spaces substringToIndex:spacesPerLevel];
+
+    for (l = 0; l < level; l++)
+        [self appendString:levelSpaces];
+}
+
+@end