08-16-2011
Yes, the space is useful ^^
So, let's explain what happens : sed -e "s/^<item> *\([^ ]*\) *<\/item>/\1/"
"s/blabla1/blabla2/" means we'll replace blabla1 by blabla2.
"^<item> *" means we want a line, which starts with "<empty>" and spaces (or not)
" *<\/item>" means we want a line, which finishes by spaces (or not) and </item>. The backslash is used to not interpret the following slash.
\(blabla\) means "blabla" is useful and we need to save it for after.
[^ ]* means we are looking for everything except spaces.
"\1", in the second part is calling the first important thing saved in the first part -> \(blabla\)
So, we are selecting all the line surrounded by <item>...</item> and only keep what is inside, except space.
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LEARN ABOUT DEBIAN
lltag_formats
lltag_formats(5) File Formats Manual lltag_formats(5)
NAME
formats - Internal formats database file for lltag
DESCRIPTION
The internal format database is usually stored in /etc/lltag/formats. The user may override this file by defining a $HOME/.lltag/formats.
If this file exists, the system-wide one is ignored.
These files contain entries starting with a line such as:
[%n - %a - %t]
A title between bracket that will be displayed at runtime.
Then, the following 3 lines must be given to explain how the format is actually used to parse filenames:
type = basename
The type is either basename (to parse the last part of the path to a file) or path (to parse the directory part of the path to a
file). When actually parsing the path to target files, basename and path parsers will be assembled. All possible combination will
be tried.
regexp = %L%N%S-%S%A%S-%S%A%L
A string composed of any characters, with the following special fields:
%L for delimiter (empty by default, multiple spaces if --spaces was given)
%S for a space (or multiple spaces if --spaces was given)
%N for numbers
%A for an alphanumeric string without /
%P for any path (alphanumeric string with /)
%% for %
indices = NUMBER,ARTIST,TITLE
A list of fields to match (either given by their full name or associated letter) corresponding to each %N or %A field in the previ-
ous format. It may be AUTHOR (or a), ALBUM (A), GENRE (g), NUMBER (n), TITLE (t), DATE (d), COMMENT (c) or IGNORE (i). See also
FORMAT in the manpage of lltag for details about these fields.
SEE ALSO
lltag(1)
AUTHOR
Brice Goglin
NOVEMBER 2006 lltag_formats(5)