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glynor:

--- Quote from: Fred1 on September 04, 2015, 10:38:01 am ---or MC could execute its own macros, it would be easier. But that's not the case.

--- End quote ---

Sure it can.

Calculated fields are saved expressions.  I never type out (or paste in) an expression I use regularly.  If you have an expression you use regularly, make it into a field, then instead of typing out very long expression, you type:

=[My Saved Expression's Name]

Fred1:
That's an aspect i didn't know of - thanks!

Nevertheless, there are so many different expressions i use to normalize my fields, that this probably doesn't work for me.

glynor:

--- Quote from: Fred1 on September 04, 2015, 01:05:21 pm ---Nevertheless, there are so many different expressions i use to normalize my fields, that this probably doesn't work for me.

--- End quote ---

Why? You can make as many custom fields as you want.  I probably have 30 or 40 in my Library that I use from time to time.

blgentry:
Here's another couple of things to consider about this:

1.  If you have 30 or 40 MC expressions you use, you could make a View that uses these expressions as columns.  Then you can view any file, song, album, artist, etc, and see the effect of any of your expressions on those songs.  If it makes more sense to group them together in a certain way, you could have 5, 6, or 7 views that had lots of common expressions grouped into each view so you could work on combinations of problems that you see together frequently.

If you couple this with MC's ability to do saved expressions as a selection Pane in a View, things start to get REALLY interesting.  I've only discovered this recently, and it's pretty neat.  It adds some serious utility to Views, especially views that I use for maintenance.  For example:

I have a view I use to review my cover art.  The first Pane in that view has three saved expressions in it.  One that shows only songs with no cover art.  A second one that shows files with cover art that is less than 480 x 480.  The third selection is just "all", which essentially removes that filter.  Depending upon what you see frequently, you might be able to use this to really streamline your cleanup process.

2.  The famous (and unfortunately gone) Mr. C wrote a Perl program a while back that turns CSV files into MPL.  Here I found it for you:

http://yabb.jriver.com/interact/index.php?topic=89211.msg612678#msg612678

I haven't tested this AT ALL.

3.  I've been writing my own set of Python scripts to read and write MPL to do some types of manipulation that are very hard to do in MC, or just plain not possible.  I'm far from complete, but it's been interesting.  I wonder if I should just try out the above script instead though.  Hmm, something for me to think about.

Good luck,

Brian.

Fred1:

--- Quote from: blgentry on September 04, 2015, 04:41:55 pm ---If you couple this with MC's ability to do saved expressions as a selection Pane in a View, things start to get REALLY interesting.  I've only discovered this recently, and it's pretty neat.  It adds some serious utility to Views, especially views that I use for maintenance.
--- End quote ---

That sounds interesting but i can't quite imagine it.
Could you please make a screenshot of such a view, so i can have a look on it?

I will try Mr. C's Perlscript for creating MPLs. I hope i can run it on a Mac.
Too bad that Mr. C isn't here anymore. Does anybody know what happened?

Thanks for your help!

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