Re: code that could be improved

[Gabriel Dos Reis <gdr at integrable-solutions dot net>]

"Joseph S. Myers" <jsm@polyomino.org.uk> writes:

| I wonder whether %D and similar should default to being quoted (with some 

I don't think that default would be appropriate.  There are common
situations where we want to say

   "fubar '%D::%T' is foo and bar" 


| flag for the few places they aren't), and whether in general any such 
| global diagnostics change should use special formats
| 
| %` for a left quote (' in C locale)
| %' for a right quote (' in C locale)
| %qs for quoted string
| %qD for unquoted decl

I would prefer a simple

  %q for quoted tree or string

There is no conceptual difference when a tree  or string literal is
reported in diagnostics.

| ... (I'd rather distinguish the flags for quoting strings and unquoting 
| decls, but %Q is already used in the C++ front end; it could be 
| reassigned.)

I do believe that %Q should be reassigned -- I came to the same
conclusion when I wanted to solve properly PR 712 which is open since
ages.  It is fa better properly solved with a clear quote marker.

| This would allow for future refinements to C locale quoting when the
| character set permits.  It does however presume that each language has a
| single left-quote string and a single right-quote string that are
| appropriate in all cases of quoting.

Well, that is a good starting point.

-- Gaby