[GHC] #10230: multiline literals doesn't work with CPP extension.
#10230: multiline literals doesn't work with CPP extension. -------------------------------------+------------------------------------- Reporter: qnikst | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- If LANGUAGE CPP is enabled then multiline literals stops working. Steps to reproduce. 1. write a program with multiline literal: cat 1.hs {{{#!hs test = "mutli\ \line" main = putStrLn test }}} 2. it should compile without CPP: ghc 1.hs [1 of 1] Compiling Main ( 1.hs, 1.o ) Linking 1 ... 3. compile it with CPP extension Expected result: program compiles {{{ ghc 1.hs [1 of 1] Compiling Main ( 1.hs, 1.o ) Linking 1 ... }}} Actual result: compilation breaks {{{ ghc -XCPP 1.hs [1 of 1] Compiling Main ( 1.hs, 1.o ) [flags changed] 1.hs:1:18: lexical error in string/character literal at character 'l' }}} At least ghc-7.8.4 and ghc-7.10 are affected. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10230 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#10230: multiline literals doesn't work with CPP extension. -------------------------------------+------------------------------------- Reporter: qnikst | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by rwbarton): * status: new => closed * resolution: => invalid Comment: If you use `-XCPP` then you are responsible for ensuring that the output of the C preprocessor is a valid Haskell program. Line continuations (`\` at the end of a line) are handled by the C preprocessor (so that you can define multi-line macros). See https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/options- phases.html#cpp-string-gaps. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10230#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#10230: multiline literals doesn't work with CPP extension. -------------------------------------+------------------------------------- Reporter: qnikst | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by hvr): See also Proposal/NativeCpp which may address this issue to some extent -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10230#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#10230: multiline literals doesn't work with CPP extension. -------------------------------------+------------------------------------- Reporter: qnikst | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: invalid | Keywords: cpp Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by hvr): * keywords: => cpp -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10230#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#10230: multiline literals doesn't work with CPP extension. -------------------------------------+------------------------------------- Reporter: qnikst | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: invalid | Keywords: cpp Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by chris-martin): Updated URL for the relevant bit of the GHC manual: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/phases.html ?#cpp-and-string-gaps -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10230#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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