#11632: read (show "ó1") fails -------------------------------------+------------------------------------- Reporter: inversemot | Owner: Type: bug | Status: new Priority: high | Milestone: Component: libraries/base | Version: 7.10.3 Resolution: | Keywords: Operating System: Linux | Architecture: Type of failure: Incorrect result | Unknown/Multiple at runtime | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by rwbarton): * priority: normal => high @@ -0,0 +1,5 @@ + {{{ + Prelude> let s = "ó1" in read (show s) + *** Exception: Prelude.read: no parse + }}} + @@ -4,3 +9,4 @@ - readLitChar "\"\\243\\&1\"" = [("\"", "\243\\&1")] - readLitChar "\243\\&1" = [("\243", "\\&1")] --should have consumed "\\&" - readLitChar "\\&1" = [] + readLitChar "\"\\243\\&1\"" = [('"', "\\243\\&1\"")] + readLitChar "\\243\\&1\"" = [('\243', "\\&1\"")] --should have consumed + "\\&" + readLitChar "\\&1\"" = [] New description: {{{ Prelude> let s = "ó1" in read (show s) *** Exception: Prelude.read: no parse }}} "ó1" is "\243\&1" and when shown that's `"\"\\243\\&1\""` {{{#!hs readLitChar "\"\\243\\&1\"" = [('"', "\\243\\&1\"")] readLitChar "\\243\\&1\"" = [('\243', "\\&1\"")] --should have consumed "\\&" readLitChar "\\&1\"" = [] }}} -- Comment: Thanks for the report. I fixed some errors in the ticket description, hope this is what you meant. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11632#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler