Extensions to standard Java I/O (Reader, Writer, Appendable) and Format. Many classes defined in this package are filters applying on-the-fly formatting while writing text to the output device. For example, Line­Appender can wrap lines to some maximal line length (e.g. 80 characters), and Table­Appender replaces all occurrence of '\t' by the amount of spaces needed for producing a tabular output.
Note: One of the formatter classes defined in this package is a java​.text​.Format subclass. While traditionally though as part of text packages, that Format is defined in this I/O package because it can format to an Appendable and for consistency with the org​.apache​.sis​.io​.wkt package.

Unicode characters

Some formatters in this package make extensive use of Unicode characters. This may produce unexpected results in a Windows console, unless the underlying output stream uses the correct encoding (e.g. new Output­Stream­Writer(System​.out, "Cp437")). To display the appropriate code page for a Windows console, type chcp on the command line.

Supplementary Unicode characters

This package can handle the Unicode supplementary characters.
  • Class
    Base class of Format implementations which delegate part of their work to other Format instances.
    Thrown when an input stream or a channel cannot modify its position to the given value.
    Utilities methods working on Appendable objects.
    An Appendable which can apply different kinds of reformatting that depend on the End Of Line (EOL) occurrences.
    An Appendable which formats the text as a table suitable for displaying in devices using a monospaced font.
    Base class for parser and formatter of tabular data, providing control on line and column separators.