Re: Linux / Unix difference

Hi, On Thu, 2009-07-23 at 16:49 +0100, Derick Rethans wrote: > No no... We've gone to great length to make things behave the same on > every platform. Not only between Unices, but also with the Windows port. > It is absolutely adamant that PHP works the same on every platform and > is *not* OS dependent in how things work. I don't think it worth going that deep into abstraction, we are talking about an edge-case with a trailing / here and talking about paths we're already in an area where it's hard to wrap every detail away. If we want to got that route the only relevant standard is POSIx which includes these two definitions which are relevant: 3.169 Filename A name consisting of 1 to {NAME_MAX} bytes used to name a file. The characters composing the name may be selected from the set of all character values excluding the slash character and the null byte. The filenames dot and dot-dot have special meaning. A filename is sometimes referred to as a "pathname component". 3.266 Pathname A character string that is used to identify a file. In the context of IEEE Std 1003.1-2001, a pathname consists of, at most, {PATH_MAX} bytes, including the terminating null byte. It has an optional beginning slash, followed by zero or more filenames separated by slashes. A pathname may optionally contain one or more trailing slashes. Multiple successive slashes are considered to be the same as one slash. So what we call "filename" is a "Pathname" by these definitions and explicitly allows slashes in the end. So the proper fix would be on Linux systems to drop all trailing slashes during file operations, but not when working with something which might be a directory, as then it here might be a difference between /foo/ and /foo, as /foo might be a symlink to a directory ... oh and then we have a difference in case the file is used by a library not using stream wrappers .... Do you really want to got that way and open that can of worms just for abstraction of an edge case? - I'd concentrate on issues with real-life impact. johannes