Hi Brent,
> On May 26, 2016, at 2:29 PM, Brent Royal-Gordon via swift-corelibs-dev
> <swift-corelibs-dev@swift.org> wrote:
>
>> #if os(Linux)
>> print("Let's change those carriage returns...")
>> processedString = string.replacingOccurrences(of: "\r\n", with:
>> "\n")
>> #else
>> processedString = string.replacingOccurrences(of: "\r\n", with:
>> "\n")
>> #endif
>> And it compiles flawlessly in linux, but when it’s time to execute, it
>> throws an error message like:
>> Let's change those carriage returns...
>> Illegal instruction (core dumped)
>
> I don't have a Swift on Linux box, so I can't really run Corelibs Foundation
> myself. But looking at the source code
> <https://github.com/apple/swift-corelibs-foundation/blob/182d5c970114ec7f981aceaaa054d51e29923cf3/Foundation/NSString.swift#L1383>,
> I'm not sure that it will behave correctly when you replace a string with a
> differently-sized string and .backwardsSearch is not set. Maybe there's
> something I'm missing, but it looks to me like each replacement will shift
> the characters in the string, but the ranges won't move with them. The
> replacements will miss their targets more and more, and eventually—if the
> replacement is shorter than the original and one of the matches is near
> enough to the end—they might run past the end of the string.
>
> Carlos: Try passing `options: .backwardsSearch` to `replacingOccurrences`. If
> I'm right about this being a bug, doing that should work around it, and you
> ought not to notice any difference in your code's behavior. (This is not
> something you should have necessarily figured out yourself; you haven't
> missed anything obvious.)
>
> swift-corelibs-dev (who I've cc'd on this thread): Am I correct that this is
> a bug? Should it be/has it been filed? (A quick-and-dirty search of the bug
> tracker seems to indicate it hasn't been, but I don't have that much
> experience with it.)
>
Can’t hurt to file a bug. It’ll help us track what we have left, and also give
people a place to look for something they can help with.
Thanks,
- Tony
> --
> Brent Royal-Gordon
> Architechies
>
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