#3341: encoding errors could be handled better
--------------------+-------------------------------------------------------
Reporter: judahj | Owner:
Type: bug | Status: new
Priority: normal | Component: libraries/base
Version: 6.11 | Severity: normal
Keywords: | Testcase:
Os: MacOS X | Architecture: x86
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With the new Unicode I/O library, using the following program
(`badchar.hs`):
{{{
import System.IO
main = do
hSetBuffering stdin NoBuffering
getChar >> print
}}}
If the terminal's LANG is utf-8 but a latin-1 non-ASCII character is
typed, then the terminal hangs and doesn't throw an error until three
more bytes are entered. Since `NoBuffering` is set, I'd expect the
program to
immediately perform error handling rather than waiting for more input.
Furthermore, if the end of input is reached then the invalid byte is
accepted without error. For example, in a utf-8 terminal:
{{{
dhcp-19-155:tmp judah$ ghc -e "putStrLn \"\\249\"" | ./badchar
'\249'
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3341>
GHC <http://www.haskell.org/ghc/>
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