[GHC] #2507: quotation characters in error messages

[GHC]

#2507: quotation characters in error messages
-------------------------------------+------------------------------------
        Reporter:  Isaac Dupree      |            Owner:
            Type:  feature request   |           Status:  merge
        Priority:  lowest            |        Milestone:  7.6.2
       Component:  Compiler          |          Version:  6.8.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #2811,#3398
-------------------------------------+------------------------------------

Comment (by hvr):

 FYI, just found this related article
 [http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html ASCII and Unicode
 quotation marks], which is summarised as follows:

 > Please do not use the ASCII grave accent (0x60) as a left quotation mark
 together with the ASCII apostrophe (0x27) as the corresponding right
 quotation mark (as in `quote'). Your text will otherwise appear rather
 strange with most modern fonts (e.g., on Windows and Mac systems). Only
 old X Window System fonts and some old video terminals show ASCII
 0x60/0x27 as left and right quotation marks, while most modern systems
 follow the ISO and Unicode standards instead.
 >
 > If you can use only ASCII’s typewriter characters, then use the
 apostrophe character (0x27) as both the left and right quotation mark (as
 in 'quote'). If you can use Unicode characters, nice directional quotation
 marks are available in the form of characters U+2018, U+2019, U+201C, and
 U+201D (as in ‘quote’ or “quote”).

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2507#comment:34>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler