lib/core/io.egiΒΆ
Prints the given string and a newline to the standard output.
> io (print "foo") foo ()
- printToPort
A variant of
print. The output is written to the given port.printToPort outport "foo"
- display
Prints the given string to the standard output.
> io (display "foo") foo()
- displayToPort
A variant of
display. The output is written to the given port.displayToPort outport "foo"
- eachLine
Repeat reading a single line from the standard input and applying the given function to it.
-- Repeats reading one line and printing it out eachLine print
- eachLineFromPort
A variant of
eachLine. The input is read from the given port.eachLineFromPort inport print
- eachFile
Takes a collection of file names (in string) and a function, and apply the function for each line in each of the files.
eachFile ["in1.txt", "in2.txt"] print
- each
This function corresponds to the
mapM_in Haskell.each print ["foo", "bar"]
- debug
Prints out the argument value and returns it. This function is useful for debugging.
debug x
- debug2
A variant of
debug. The first argument is a string.debug2 "x = " x