[REBOL] Re: Filtering files in directories.
From: rebol-list2:seznam:cz at: 3-Jan-2003 12:16
Hello Gregg,
Thursday, January 2, 2003, 7:48:18 PM, you wrote:
GI> Hi Ed,
ED>> How do I get only specified files in a directory? IOW, how do I do the
ED>> equivalent of pattern matching, if I want all JPG files, how do I return
ED>> only *.jpg?
ED>> So far, all the examples I have found involve loading all the files
ED>> first and then extracting the ones you need or not from the series that
ED>> is returned.
GI> You can open a directory port directly if you want, though I don't
GI> think it will gain you much in this case. Under Windows you can use
GI> the FindFirstFile and FindNextFile APIs but that locks you in to the
GI> OS.
GI> Is performance an issue, or is it just curiosity?
GI> -- Gregg
I've tried to open very large directory (more then 2700 files) directly using:
files: open/direct %very/large/dir/
and it looks that the output is buffered as well (at least when I
use "? dir" I can see all the dir file names in the dir/state/inBuffer
so you can use:
forall files [probe files/1] ;to list all file names
close files
but it looks it's same as simple:
files: read %very/large/dir/
the open/skip on directory is not working as well
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