Add NSString category

GormCore/NSString+methods.h

@@ -0,0 +1,12 @@
+// This file is under the terms of the GPLv3, See COPYING for details
+
+#ifndef INCLUDED_NSString_methods_H
+#define INCLUDED_NSString_methods_H
+
+@import <Foundation/NSString.h>
+
+@interface NSString (methods}
+- (NSString *) splitCamelCaseString;
+@end
+
+#endif

GormCore/NSString+methods.m

@@ -0,0 +1,43 @@
+#import "NSString+methods.h"
+
+// NSString category methods to add functionality to NSString
+
+@implementation NSString (methods)
+
+// Split a camel case string into a string with spaces
+// e.g. "camelCaseString" becomes "camel Case String"
+- (NSString *) splitCamelCaseString
+{
+    NSMutableString *result = [NSMutableString string];
+    NSScanner *scanner = [NSScanner scannerWithString: self];
+    NSCharacterSet *uppercase = [NSCharacterSet uppercaseLetterCharacterSet];
+    NSCharacterSet *lowercase = [NSCharacterSet lowercaseLetterCharacterSet];
+    NSCharacterSet *letters = [NSCharacterSet letterCharacterSet];
+    NSString *buffer;
+
+    while (![scanner isAtEnd]) 
+      {
+        if ([scanner scanCharactersFromSet: uppercase intoString: &buffer])
+          {
+            [result appendString: buffer];
+          }
+        
+        if ([scanner scanCharactersFromSet: lowercase intoString: &buffer])
+          {
+            if ([result length] > 0)
+              {
+                [result appendString: @" "];
+              }
+            
+            [result appendString: [buffer capitalizedString]];
+        }
+        if ([scanner scanCharactersFromSet: letters intoString: &buffer])
+          {
+            [result appendString: buffer];
+          }
+      }
+    
+    return result;
+}
+
+@end