[X] regular expressions not working correctly

Bug Reports No Bugs
#1

It seems character classes [...] are not working in MP3Tag's implementation of regular expressions, as

$regexp(%_tag%,(ID3\w*).,$1) matches ID3v1
but
$regexp(%_tag%,(ID3[\w]).,$1) only matches ID3 (should match ID3v1)
$regexp(%_tag%,(ID3[^ ]).*,$1) only matches ID3 (should match ID3v1)

(%_tag% = "ID3v1 Lyrics3v2 ID3v2.4 APEv2")

#2

Try this ...

$regexp(%_tag%,'(ID3\w*).*','$1') $regexp(%_tag%,'(ID3[\w]*).*','$1') $regexp(%_tag%,'(ID3[^ ]*).*','$1')

DD.20110720.0704.CEST

#3

your version (with '...' wrapped around) works. what is the reason for this? Why are quotes (') needed at all?

I finally settled for $regexp(%_tag%,(ID3\S*).*,$1) which also works.

however \S and [^ ] is strictly the same thing, so both variants should work.

#4

It is strictly not the same thing.
Character class \s contains spaces, tabs, and line breaks.
Character class \S is the negated version of class \s.

DD.20120118.1124.CET

#5

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