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Re: Let ', ' separate symbol lists like '.' does (issue 290490043 by add

From: Dan Eble
Subject: Re: Let ', ' separate symbol lists like '.' does (issue 290490043 by address@hidden)
Date: Tue, 8 Mar 2016 17:42:50 -0500

On Mar 8, 2016, at 13:17 , address@hidden wrote:
> Description:
> Let ',' separate symbol lists like '.' does
> While the dotted list syntax is natural for hierarchical paths like for
> \override and \revert, it is less natural in cases that may now be
> written as
>    \keepWithTag violin,flute,oboe { c''’ }

Based on my hasty scan of this change, it looks like you’ve made comma and dot 
interchangeable.  So it would be valid to write

   \keepWithTag violin.flute,oboe …

If that’s the case, it’s weird.

If the problem is that ‘.’ implies hierarchy, then in addition to making it 
possible to define a comma-separated symbol list, wouldn’t it be helpful to 
require a comma-separated list for non-hierarchical arguments and a 
dot-separated list for hierarchical arguments?

And would we ever want to express a non-hierarchical list of hierarchical lists?

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