If several lines are pasted in, Haskeline may ignore all but the first

[judah]

Take a program running Haskeline, and paste in several lines at once. After the first line, most or all of the input will be gone.

The problem is that on POSIX, in order to process Unicode input efficiently we read ahead in the buffer and don't put back what we haven't used.

[judah]

Probably the best fix is to pull from the buffer only as far as the first '\n' byte (or push back everything after that '\n').

This is OK since we already require encodings that treat '\n' as one byte.

[judah]

Looks like this issue has resurfaced:

http://hackage.haskell.org/trac/ghc/ticket/5548

After looking at the darcs history, I figured out what caused the regression. I'll work on the fix, which should be pretty minor.

[judah]

Now fixed in haskeline-0.6.4.4.