зеркало из https://github.com/mozilla/gecko-dev.git
Patch from Max Horn to optimize 'stringByTruncatingTo'.
This commit is contained in:
Родитель
57378f7d93
Коммит
5b35359398
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@ -50,7 +50,7 @@
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if (!sEllipsisString)
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{
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unichar ellipsisChar = 0x2026;
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sEllipsisString = [[[NSString alloc] initWithCharacters:&ellipsisChar length:1] retain];
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sEllipsisString = [[NSString alloc] initWithCharacters:&ellipsisChar length:1];
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}
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return sEllipsisString;
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@ -131,34 +131,24 @@
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- (NSString*)stringByTruncatingTo:(int)maxCharacters at:(ETruncationType)truncationType
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{
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NSString* ellipsisString = [NSString ellipsisString];
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if ([self length] > maxCharacters)
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{
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NSMutableString *croppedString = [NSMutableString stringWithCapacity:maxCharacters + [ellipsisString length]];
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NSMutableString *croppedString = [self mutableCopy];
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NSRange replaceRange;
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replaceRange.length = [self length] - maxCharacters;
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switch (truncationType)
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{
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case kTruncateAtStart:
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[croppedString appendString:ellipsisString];
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[croppedString appendString:[self substringWithRange:NSMakeRange([self length] - maxCharacters, maxCharacters)]];
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replaceRange.location = 0;
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break;
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case kTruncateAtMiddle:
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{
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int len1 = maxCharacters / 2;
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int len2 = maxCharacters - len1;
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NSString *part1 = [self substringWithRange:NSMakeRange(0, len1)];
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NSString *part2 = [self substringWithRange:NSMakeRange([self length] - len2, len2)];
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[croppedString appendString:part1];
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[croppedString appendString:ellipsisString];
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[croppedString appendString:part2];
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}
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replaceRange.location = maxCharacters / 2;
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break;
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case kTruncateAtEnd:
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[croppedString appendString:[self substringWithRange:NSMakeRange(0, maxCharacters)]];
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[croppedString appendString:ellipsisString];
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replaceRange.location = maxCharacters;
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break;
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default:
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@ -168,6 +158,7 @@
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break;
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}
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[croppedString replaceCharactersInRange:replaceRange withString:[NSString ellipsisString]];
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return croppedString;
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}
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else
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@ -50,7 +50,7 @@
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if (!sEllipsisString)
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{
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unichar ellipsisChar = 0x2026;
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sEllipsisString = [[[NSString alloc] initWithCharacters:&ellipsisChar length:1] retain];
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sEllipsisString = [[NSString alloc] initWithCharacters:&ellipsisChar length:1];
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}
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return sEllipsisString;
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@ -131,34 +131,24 @@
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- (NSString*)stringByTruncatingTo:(int)maxCharacters at:(ETruncationType)truncationType
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{
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NSString* ellipsisString = [NSString ellipsisString];
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if ([self length] > maxCharacters)
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{
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NSMutableString *croppedString = [NSMutableString stringWithCapacity:maxCharacters + [ellipsisString length]];
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NSMutableString *croppedString = [self mutableCopy];
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NSRange replaceRange;
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replaceRange.length = [self length] - maxCharacters;
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switch (truncationType)
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{
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case kTruncateAtStart:
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[croppedString appendString:ellipsisString];
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[croppedString appendString:[self substringWithRange:NSMakeRange([self length] - maxCharacters, maxCharacters)]];
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replaceRange.location = 0;
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break;
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case kTruncateAtMiddle:
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{
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int len1 = maxCharacters / 2;
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int len2 = maxCharacters - len1;
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NSString *part1 = [self substringWithRange:NSMakeRange(0, len1)];
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NSString *part2 = [self substringWithRange:NSMakeRange([self length] - len2, len2)];
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[croppedString appendString:part1];
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[croppedString appendString:ellipsisString];
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[croppedString appendString:part2];
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}
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replaceRange.location = maxCharacters / 2;
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break;
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case kTruncateAtEnd:
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[croppedString appendString:[self substringWithRange:NSMakeRange(0, maxCharacters)]];
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[croppedString appendString:ellipsisString];
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replaceRange.location = maxCharacters;
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break;
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default:
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@ -168,6 +158,7 @@
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break;
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}
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[croppedString replaceCharactersInRange:replaceRange withString:[NSString ellipsisString]];
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return croppedString;
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}
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else
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@ -50,7 +50,7 @@
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if (!sEllipsisString)
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{
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unichar ellipsisChar = 0x2026;
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sEllipsisString = [[[NSString alloc] initWithCharacters:&ellipsisChar length:1] retain];
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sEllipsisString = [[NSString alloc] initWithCharacters:&ellipsisChar length:1];
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}
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return sEllipsisString;
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@ -131,34 +131,24 @@
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- (NSString*)stringByTruncatingTo:(int)maxCharacters at:(ETruncationType)truncationType
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{
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NSString* ellipsisString = [NSString ellipsisString];
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if ([self length] > maxCharacters)
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{
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NSMutableString *croppedString = [NSMutableString stringWithCapacity:maxCharacters + [ellipsisString length]];
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NSMutableString *croppedString = [self mutableCopy];
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NSRange replaceRange;
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replaceRange.length = [self length] - maxCharacters;
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switch (truncationType)
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{
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case kTruncateAtStart:
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[croppedString appendString:ellipsisString];
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[croppedString appendString:[self substringWithRange:NSMakeRange([self length] - maxCharacters, maxCharacters)]];
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replaceRange.location = 0;
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break;
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case kTruncateAtMiddle:
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{
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int len1 = maxCharacters / 2;
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int len2 = maxCharacters - len1;
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NSString *part1 = [self substringWithRange:NSMakeRange(0, len1)];
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NSString *part2 = [self substringWithRange:NSMakeRange([self length] - len2, len2)];
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[croppedString appendString:part1];
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[croppedString appendString:ellipsisString];
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[croppedString appendString:part2];
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}
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replaceRange.location = maxCharacters / 2;
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break;
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case kTruncateAtEnd:
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[croppedString appendString:[self substringWithRange:NSMakeRange(0, maxCharacters)]];
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[croppedString appendString:ellipsisString];
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replaceRange.location = maxCharacters;
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break;
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default:
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@ -168,6 +158,7 @@
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break;
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}
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[croppedString replaceCharactersInRange:replaceRange withString:[NSString ellipsisString]];
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return croppedString;
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}
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else
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@ -50,7 +50,7 @@
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if (!sEllipsisString)
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{
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unichar ellipsisChar = 0x2026;
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sEllipsisString = [[[NSString alloc] initWithCharacters:&ellipsisChar length:1] retain];
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sEllipsisString = [[NSString alloc] initWithCharacters:&ellipsisChar length:1];
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}
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return sEllipsisString;
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@ -131,34 +131,24 @@
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- (NSString*)stringByTruncatingTo:(int)maxCharacters at:(ETruncationType)truncationType
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{
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NSString* ellipsisString = [NSString ellipsisString];
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if ([self length] > maxCharacters)
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{
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NSMutableString *croppedString = [NSMutableString stringWithCapacity:maxCharacters + [ellipsisString length]];
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NSMutableString *croppedString = [self mutableCopy];
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NSRange replaceRange;
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replaceRange.length = [self length] - maxCharacters;
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switch (truncationType)
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{
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case kTruncateAtStart:
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[croppedString appendString:ellipsisString];
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[croppedString appendString:[self substringWithRange:NSMakeRange([self length] - maxCharacters, maxCharacters)]];
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replaceRange.location = 0;
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break;
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case kTruncateAtMiddle:
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{
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int len1 = maxCharacters / 2;
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int len2 = maxCharacters - len1;
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NSString *part1 = [self substringWithRange:NSMakeRange(0, len1)];
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NSString *part2 = [self substringWithRange:NSMakeRange([self length] - len2, len2)];
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[croppedString appendString:part1];
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[croppedString appendString:ellipsisString];
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[croppedString appendString:part2];
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}
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replaceRange.location = maxCharacters / 2;
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break;
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case kTruncateAtEnd:
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[croppedString appendString:[self substringWithRange:NSMakeRange(0, maxCharacters)]];
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[croppedString appendString:ellipsisString];
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replaceRange.location = maxCharacters;
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break;
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default:
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@ -168,6 +158,7 @@
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break;
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}
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[croppedString replaceCharactersInRange:replaceRange withString:[NSString ellipsisString]];
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return croppedString;
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}
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else
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