=item readline EXPR
-Reads from the filehandle EXPR. The EXPR can be either the name of
-the handle or the typeglob for it. In scalar context, each call reads
-and returns the next line, until end-of-file is reached, whereupon the
-subsequent call returns undef. In list context, reads until
-end-of-file is reached and returns a list of lines. Note that the
-notion of "line" used here is however you may have defined it with
-C<$/> or C<$INPUT_RECORD_SEPARATOR>). See L<perlvar/"$/">.
+Reads from the filehandle whose typeglob is contained in EXPR. In scalar
+context, each call reads and returns the next line, until end-of-file is
+reached, whereupon the subsequent call returns undef. In list context,
+reads until end-of-file is reached and returns a list of lines. Note that
+the notion of "line" used here is however you may have defined it
+with C<$/> or C<$INPUT_RECORD_SEPARATOR>). See L<perlvar/"$/">.
When C<$/> is set to C<undef>, when readline() is in scalar
context (i.e. file slurp mode), and when an empty file is read, it
operator is discussed in more detail in L<perlop/"I/O Operators">.
$line = <STDIN>;
- $line = readline(STDIN); # same thing
$line = readline(*STDIN); # same thing
=item readlink EXPR