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(slib.info)Line I/O

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Enter node , (file) or (file)node

Line I/O
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  `(require 'line-i/o)'

 - Function: read-line
 - Function: read-line port
     Returns a string of the characters up to, but not including a
     newline or end of file, updating PORT to point to the character
     following the newline.  If no characters are available, an end of
     file object is returned.  The PORT argument may be omitted, in
     which case it defaults to the value returned by
     `current-input-port'.

 - Function: read-line! string
 - Function: read-line! string port
     Fills STRING with characters up to, but not including a newline or
     end of file, updating the PORT to point to the last character read
     or following the newline if it was read.  If no characters are
     available, an end of file object is returned.  If a newline or end
     of file was found, the number of characters read is returned.
     Otherwise, `#f' is returned.  The PORT argument may be omitted, in
     which case it defaults to the value returned by
     `current-input-port'.

 - Function: write-line string
 - Function: write-line string port
     Writes STRING followed by a newline to the given PORT and returns
     an unspecified value.  The PORT argument may be omitted, in which
     case it defaults to the value returned by `current-input-port'.

 - Function: display-file path
 - Function: display-file path port
     Displays the contents of the file named by PATH to PORT.  The PORT
     argument may be ommited, in which case it defaults to the value
     returned by `current-output-port'.