3.3.3.2 with-track-in ¶

with-track-in(directory, fn) is a convenience function; it will iterate over all filesystem entities in directory and apply fn to them. fn shall be a function taking three parameters:

1. a tagset, such as what is returned from read-tagset
2. a string naming the fileystem entity
3. an ID3v1 tag (nil if none exists)

scheme@(guile-user)> (with-track-in "." (lambda (tags pth v1) (format #t "~s has ~d ID3v2 tags\n" pth (length tags))))
"./track.dat" has 0 ID3v2 tags
"./id3v22-tda.mp3" has 1 ID3v2 tags
...