{{{ λ> let ᵤxᵤy = 1 }}}

GHC 7.10 follows Unicode standard 7.0, in which `'ᵤ'` (`'\x2b9'`) is in

#5108: Allow unicode sub/superscript symbols in both identifiers and operators -------------------------------------+------------------------------------- Reporter: | Owner: mikhail.vorozhtsov | Status: infoneeded Type: feature request | Milestone: 7.12.1 Priority: normal | Version: 7.1 Component: Compiler | Keywords: lexer (Parser) | unicode Resolution: | Architecture: Operating System: Unknown/Multiple | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #10196 | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * related: => #10196 Comment: Replying to [comment:16 thomie]: the `ModifierLetter` (Lm) general category, so that will no longer compile. Ticket #10196 intends to fix this regression, by allowing MODIFIERLETTER in identifiers after the first character. Comments welcome. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/5108#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler