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SerialPort.pm  view on Meta::CPAN

support is new with Version 0.04 and the READ and READLINE methods
were added in Version 0.06. In "scalar context", READLINE sets B<stty_icanon>
to do character processing and calls B<lookfor>. It restores B<stty_icanon>
after the read. In "list context", READLINE does Canonical (line) reads if
B<stty_icanon> is set or calls B<streamline> if it is not. (B<stty_icanon>
is not altered). The B<streamline> choice allows duplicating the operation
of Win32::SerialPort for cross-platform scripts. 

The implementation attempts to mimic STDIN/STDOUT behaviour as closely
as possible: calls block until done and data strings that exceed internal
buffers are divided transparently into multiple calls. In Version 0.06,
the output separators C<$,> and C<$\> are also applied to PRINT if set.
The B<output_record_separator> and B<output_field_separator> methods can set
I<Port-FileHandle-Specific> versions of C<$,> and C<$\> if desired. Since
PRINTF is treated internally as a single record PRINT, C<$\> will be applied.
Output separators are not applied to WRITE (called as
C<syswrite FH, $scalar, $length, [$offset]>).
The input_record_separator C<$/> is not explicitly supported - but an
identical function can be obtained with a suitable B<are_match> setting.

  $PortObj2 = tie (*FH, 'Device::SerialPort', $Configuration_File_Name)