Implemented method: componentsSeparatedByCharactersInSet. to be compatible with 10.4+

3 files changed, 38 insertions, 0 deletions

diff --git a/Source/CMTextView.m b/Source/CMTextView.m
index 369e9a43..bce2bd4a 100644
--- a/Source/CMTextView.m
+++ b/Source/CMTextView.m
@@ -22,6 +22,7 @@
 //  Or mail to <lorenz@textor.ch>
 
 #import "CMTextView.h"
+#import "SPStringAdditions.h"
 
 @implementation CMTextView
 
diff --git a/Source/SPStringAdditions.h b/Source/SPStringAdditions.h
index d2ac5d4b..4acd748c 100644
--- a/Source/SPStringAdditions.h
+++ b/Source/SPStringAdditions.h
@@ -26,4 +26,8 @@
 
 + (NSString *)stringForByteSize:(int)byteSize;
 
+#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5
+	- (NSArray *)componentsSeparatedByCharactersInSet:(NSCharacterSet *)set;
+#endif
+
 @end
diff --git a/Source/SPStringAdditions.m b/Source/SPStringAdditions.m
index a51df693..2916611d 100644
--- a/Source/SPStringAdditions.m
+++ b/Source/SPStringAdditions.m
@@ -66,4 +66,37 @@
 	return [numberFormatter stringFromNumber:[NSNumber numberWithFloat:size]];
 }
 
+#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5
+	// -------------------------------------------------------------------------------
+	// componentsSeparatedByCharactersInSet:
+	// Credit - Greg Hulands <ghulands@mac.com>
+	// Needed for 10.4+ compatibility
+	// -------------------------------------------------------------------------------
+	- (NSArray *)componentsSeparatedByCharactersInSet:(NSCharacterSet *)set // 10.5 adds this to NSString, but we are 10.4+
+	{ 
+		NSMutableArray *result = [NSMutableArray array];
+		NSScanner *scanner = [NSScanner scannerWithString:self];
+		NSString *chunk = nil;
+		
+		[scanner setCharactersToBeSkipped:nil];
+		BOOL sepFound = [scanner scanCharactersFromSet:set intoString:(NSString **)nil]; // skip any preceding separators
+		
+		if (sepFound) { // if initial separator, start with empty component
+			[result addObject:@""];
+		}
+		
+		while ([scanner scanUpToCharactersFromSet:set intoString:&chunk]) {
+			[result addObject:chunk];
+			sepFound = [scanner scanCharactersFromSet: set intoString: (NSString **) nil];
+		}
+		
+		if (sepFound) { // if final separator, end with empty component
+			[result addObject: @""];
+		}
+		
+		result = [result copy];
+		return [result autorelease];
+	}
+#endif
+
 @end