| ZVON > References > Haskell reference |
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| Module: | IO |
|---|---|
| Function: | hLookAhead |
| Type: | Handle -> IO Char |
| Description: | hLookAhead hdl returns the next character from handle hdl without removing it from the input buffer, blocking until a character is available |
| Related: |
File: /tmp/foo.txt : Hello, world! How do you do?
Program source: import IO main = do x <- openFile "/tmp/foo.txt" ReadMode y <- hLookAhead x putChar y y <- hLookAhead x putChar y y <- hGetChar x putChar y y <- hLookAhead x putChar y
Output: HHHe
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