I had trouble with ``do`` a long time ago as well, in the context of the HttpServer package, where I thought it was some clever macro-thing particular to that package. In fact, when teaching HttpServer.jl in a class, I avoiding the do block because I didn't want to confuse anyone: https://github.com/IainNZ/ORSoftwareTools2014/blob/master/ProjectPart1/nameservice.jl#L16-L34
I'm not saying to get rid of it, just a +1 to the way it can trick people. Python's ``with`` didn't confuse me at all, FWIW. Cheers, Iain On Monday, April 28, 2014 1:41:43 PM UTC-4, ggggg wrote: > > One difficulty I had with `do` is that its really hard to find in the docs > if you don't have any idea what it is. Try googling it or searching for it > in the docs, do is just really a common word so there is a lot of > interference. Then it sort of looks like an if or while statement, so I > tried looking in Control Flow, but its not there. > > Also I think open is a particularly confusing (but also useful) example of > the do block syntax, since the specific method of open that is called is > fairly different from most of the other open methods. Most methods return > a file handle, and leave the file open, while this particular method opens > and closes the file. So it's sort of a double whammy of potential confusion. >
