This is the basic interface to read data from a stream.
Description
Interface to read strings from a stream.
This interfaces allows to read strings seperated by
delimiters and to read lines. The character encoding
to be used can be set by setEncoding().
Default encoding is "utf8".
reads text until a line break (CR, LF, or CR/LF) or
EOF is found and returns it as string (without CR, LF).
The read characters are converted according to the
encoding defined by setEncoding. If
EOF is already reached before calling this method
an empty string is returned.
reads text until one of the given delimiter characters
or EOF is found and returns it as string (without delimiter).
Important: CR/LF is not used as default
delimiter! So if no delimiter is defined or none of the
delimiters is found, the stream will be read to EOF. The
read characters are converted according to the encoding
defined by setEncoding. If EOF is already
reached before calling this method an empty string is returned.
This method has to be used to detect if the end
of the stream is reached.
Important:
This cannot be detected by asking for an empty string
because that can be a valid return value of
readLine() (if the line is empty) and
readString() (if a delimiter is directly followed
by the next one).
Returns
true, if the end of file is reached, so that
no next string can be read. false otherwise
sets the character encoding that should be used.
The character encoding names refer to the document
http://www.iana.org/assignments/character-sets.
Which character sets are supported depends on
the implementation.
