dmwit · December 13, 2019 18:16
diff --git a/gistfile1.txt b/gistfile1.txt
 < dmwit> Okay, so "graphical" characters are allowed, which means letters (lower- and upper-case), symbols, punctuation, decimal digits, and a handful of one-off exceptions.
 < dmwit> PrivateUse doesn't qualify as any of those categories. (And you can use generalCategory to check any particular character you want to know about.)
 < dmwit> The relevant production in the Report is "graphic" at https://www.haskell.org/onlinereport/haskell2010/haskellch2.html#x7-160002.2
 < geekosaur> yeh. I actually consider this a ghc wart; it should allow PrivateUse in literals. I end up using escapes in my config
 < dmwit> > nub $ generalCategory <$> [minBound..]
 <+lambdabot>  [Control,Space,OtherPunctuation,CurrencySymbol,OpenPunctuation,ClosePunctuat...
 < geekosaur> maybe a Haskell wart if the Report specs this; there's no good reason a Char or String literal shouldn't allow any valid Unicode character
 < geekosaur> (note that this does not mean allowing PrivateUse anywhere else in a lexical Haskell setting, ecept maybe comments)
 < geekosaur> ubuntu in particular puts some useful stuff in the private use areas of its standard fonts
 < dmwit> Yeah, the Report should probably just list the characters that *aren't* allowed because they're too special. Newlines, double quotes, backspaces, maybe one or two others.
	< dmwit> Okay, so "graphical" characters are allowed, which means letters (lower- and upper-case), symbols, punctuation, decimal digits, and a handful of one-off exceptions.
	< dmwit> PrivateUse doesn't qualify as any of those categories. (And you can use generalCategory to check any particular character you want to know about.)
	< dmwit> The relevant production in the Report is "graphic" at https://www.haskell.org/onlinereport/haskell2010/haskellch2.html#x7-160002.2
	< geekosaur> yeh. I actually consider this a ghc wart; it should allow PrivateUse in literals. I end up using escapes in my config
	< dmwit> > nub $ generalCategory <$> [minBound..]
	<+lambdabot> [Control,Space,OtherPunctuation,CurrencySymbol,OpenPunctuation,ClosePunctuat...
	< geekosaur> maybe a Haskell wart if the Report specs this; there's no good reason a Char or String literal shouldn't allow any valid Unicode character
	< geekosaur> (note that this does not mean allowing PrivateUse anywhere else in a lexical Haskell setting, ecept maybe comments)
	< geekosaur> ubuntu in particular puts some useful stuff in the private use areas of its standard fonts
	< dmwit> Yeah, the Report should probably just list the characters that aren't allowed because they're too special. Newlines, double quotes, backspaces, maybe one or two others.