#9392: "\n" is displayed weirdly in error messages -------------------------------------+------------------------------------- Reporter: Artyom.Kazak | Owner: Type: feature request | Status: new Priority: low | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Other | Unknown/Multiple Blocked By: | Test Case: Related Tickets: #9681 | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * keywords: newcomer => * type: bug => feature request Comment: @Artyom.Kazak: what exactly do you find weird about the current error message? The printing over multiple lines, or just the extra slashes that are added. Perhaps the following would be an improvement: {{{ In the expression: "a\n b" + () }}} Replying to [comment:4 rwbarton]:
The formatting is intentional, see #4436. It would be nice to use the original syntax, though (and set the "original syntax" of a quasiquoter to use the multiline thing).
To show the exception from #4436, the following code path is used: `TcSplice.runMeta -> Outputable.ppr -> (instance Outputable HsLit) -> Outputable.pprHsString -> GHC.Show.showMultiLineString` I don't see an easy way to make the change you propose. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9392#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler