X-Git-Url: http://git.ithinksw.org/ITFoundation.git/blobdiff_plain/034559d9a2f0b8e607b0365152b9c73732f00e6e..2c8e10b58c81bf1170d3ed8df82b606f0815285f:/ITCategory-NSString.m

diff --git a/ITCategory-NSString.m b/ITCategory-NSString.m
new file mode 100644
index 0000000..fd036ae
--- /dev/null
+++ b/ITCategory-NSString.m
@@ -0,0 +1,24 @@
+#import "ITCategory-NSString.h"
+
+@implementation NSString (ITFoundationCategory)
+
++ (id)stringWithFourCharCode:(unsigned long)fourCharCode {
+	return [[[self alloc] initWithFourCharCode:fourCharCode] autorelease];
+}
+
+- (id)initWithFourCharCode:(unsigned long)fourCharCode {
+	return [self initWithFormat:@"%.4s", &fourCharCode];
+}
+
+- (unsigned long)fourCharCode {
+	const unsigned char *c_s = [self UTF8String];
+	unsigned long tmp = *c_s++;
+	tmp <<= 8;
+	tmp |= *c_s++;
+	tmp <<= 8;
+	tmp |= *c_s++;
+	tmp <<= 8;
+	return tmp |= *c_s++;
+}
+
+@end
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