Thank you both! :) These different ways of doing the same thing in Julia are quite useful (and funny! :))
Best, Charles On 29 October 2015 at 18:29, Stefan Karpinski <ste...@karpinski.org> wrote: > You can also use do-block syntax to make it a little easer to read: > > files = filter!(readdir(folder)) do fname > splitext(fname)[2] == "txt" && filesize(fname) >= minsize > end > > > Using the splitext function avoids the somewhat unlikely corner case of > having a hidden file whose entire name is ".txt" which should probably not > be considered to have the extension ".txt" even though it does technically > end with that string. > > On Thu, Oct 29, 2015 at 11:53 AM, Yichao Yu <yyc1...@gmail.com> wrote: > >> On Thu, Oct 29, 2015 at 11:41 AM, Charles Novaes de Santana >> <charles.sant...@gmail.com> wrote: >> > Thanks! stat is great!! :) >> > >> > My R-biased programming can solve the problem by using the following >> code: >> > >> > minsize=100 >> > folder="."; >> > files = >> > >> filter!(r"\.txt$",readdir(folder))[map(filesize,filter!(r"\.txt$",readdir(folder))).>minsize] >> >> I don't think `readdir` necessarily garentee returning the files in >> the same order every time you call it on all platforms. The simplest >> improvement is just to call filter twice but you could also just do >> >> ``` >> filter!(fname->(endswith(fname, ".txt") && filesize(fname) > minsize), >> readdir(folder)) >> ``` >> >> Note that you don't need a regular expression for endswith... >> >> > >> > It solves my problem. But I would appreciate if anyone has any other >> > suggestion to do it in a Julia-style :) >> > >> > Thanks a lot! >> > >> > Best, >> > >> > Charles >> > >> > On 29 October 2015 at 16:25, Yichao Yu <yyc1...@gmail.com> wrote: >> >> >> >> stat[1] should have the info you need to write your own filter. >> >> >> >> [1] >> >> >> http://julia.readthedocs.org/en/latest/stdlib/file/?highlight=stat#Base.stat >> >> >> >> On Thu, Oct 29, 2015 at 11:22 AM, Charles Novaes de Santana >> >> <charles.sant...@gmail.com> wrote: >> >> > Hi julians, >> >> > >> >> > I am using readdir() and filter!() to list files in a folder that >> match >> >> > a >> >> > given pattern (lets' say, to list all .txt files). >> >> > >> >> > Now I would like to filter the files according to their sizes. I only >> >> > want >> >> > to list non-empty files within a folder, so my first shot is to list >> >> > files >> >> > which sizes are higher than zero bytes. >> >> > >> >> > Some days ago there was a thread about listing the last modified >> file, >> >> > that >> >> > used map() and mtime(). Do you know something similar to list files >> by >> >> > size? >> >> > >> >> > Thanks for any tip! >> >> > >> >> > Best, >> >> > >> >> > Charles >> >> > >> >> > -- >> >> > Um axé! :) >> >> > >> >> > -- >> >> > Charles Novaes de Santana, PhD >> >> > http://www.imedea.uib-csic.es/~charles >> > >> > >> > >> > >> > -- >> > Um axé! :) >> > >> > -- >> > Charles Novaes de Santana, PhD >> > http://www.imedea.uib-csic.es/~charles >> > > -- Um axé! :) -- Charles Novaes de Santana, PhD http://www.imedea.uib-csic.es/~charles
