[GHC] #9914: Inconsistent handling of leading whitespace in GHCi
#9914: Inconsistent handling of leading whitespace in GHCi -------------------------------------+------------------------------------- Reporter: cactus | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Parser) | Version: 7.8.3 Keywords: GHCi | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: GHC Blocked By: | rejects valid program Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- In GHCi, the following three lines all work as expected: {{{ λ» let x = 1 λ» x 1 λ» let x = 2 -- Note leading whitespace λ» x 2 λ» data Foo = Foo λ» :i Foo data Foo = Foo -- Defined at <interactive>:6:1 }}} However, this fails: {{{ λ» data Bar = Bar -- Note leading whitespace <interactive>:8:2: parse error on input ‘data’ }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9914 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9914: Inconsistent handling of leading whitespace in GHCi -------------------------------------+------------------------------------- Reporter: cactus | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 (Parser) | Keywords: GHCi Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: GHC | Related Tickets: rejects valid program | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by rwbarton): A simple fix would be to change {{{`isPrefixOf` stmt}}} to {{{`isPrefixOf` removeSpaces stmt}}} (or just `dropWhile isSpace`) in two places in `InteractiveUI.runStmt`. It may be nicer to `removeSpaces` before calling to `runStmt`, but that might not work for multiline commands, not sure what kind of layout rules those have. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9914#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9914: Inconsistent handling of leading whitespace in GHCi
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Reporter: cactus | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.8.3
(Parser) | Keywords: GHCi
Resolution: | Architecture: Unknown/Multiple
Operating System: | Difficulty: Unknown
Unknown/Multiple | Blocked By:
Type of failure: GHC | Related Tickets:
rejects valid program |
Test Case: |
Blocking: |
Differential Revisions: |
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Comment (by Dr. ERDI Gergo
#9914: Inconsistent handling of leading whitespace in GHCi -------------------------------------+------------------------------------- Reporter: cactus | Owner: Type: bug | Status: merge Priority: normal | Milestone: 7.8.4 Component: Compiler | Version: 7.8.3 (Parser) | Keywords: GHCi Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: GHC | Related Tickets: rejects valid program | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by cactus): * status: new => merge * milestone: => 7.8.4 Comment: That's exactly what I ended up doing. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9914#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9914: Inconsistent handling of leading whitespace in GHCi -------------------------------------+------------------------------------- Reporter: cactus | Owner: Type: bug | Status: merge Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.8.3 (Parser) | Keywords: GHCi Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: GHC | Related Tickets: rejects valid program | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thoughtpolice): * milestone: 7.8.4 => 7.10.1 Comment: 7.8.4 is already done; closing. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9914#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9914: Inconsistent handling of leading whitespace in GHCi -------------------------------------+------------------------------------- Reporter: cactus | Owner: Type: bug | Status: closed Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.8.3 (Parser) | Keywords: GHCi Resolution: fixed | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: GHC | Related Tickets: rejects valid program | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thoughtpolice): * status: merge => closed * resolution: => fixed -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9914#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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