Package easyIO

This package supports easier and more powerful I/O. The main classes to know about are:

• StdIO: easy input from and output to the console.
• Scanner: powerful scanning with arbitrary lookahead and rollback.
• Regex: regular expression support for Scanner.

Author:

Andrew Myers

Interface Summary

Interface	Description
Recognizer	A Recognizer recognizes certain input sequences of characters available on a BacktrackScanner, and invokes a continuation for each recognized sequence.
Recognizer.Continuation	The remainder of a computation that can be performed after recognizing input.

Class Summary

Class	Description
BacktrackScanner	A scanner class that, unlike java.util.Scanner, supports arbitrary lookahead and backtracking.
BacktrackScanner.Location	An input character along with information about the source of the character, and its line number and position within the line.
PredictiveRecognizer	A Recognizer that decides what other recognizer to use based on the lookahead character.
Regex	Regular expression support for easyIO.Scanner
Scanner	A BacktrackScanner extended with convenience methods for parsing common things like integers and identifiers.
StdIO	Easy access to standard input and standard output, without fussing with exceptions.

Exception Summary

Exception	Description
EOF	Represents the end of the input ("end of file") being reached.
Recognizer.Success	Represents successful matching of the input stream by a recognizer.
UnexpectedInput	Represents encountering input that does not match the expected syntax.