antlr

Class CharBuffer

public class CharBuffer extends InputBuffer

A Stream of characters fed to the lexer from a InputStream that can be rewound via mark()/rewind() methods.

A dynamic array is used to buffer up all the input characters. Normally, "k" characters are stored in the buffer. More characters may be stored during guess mode (testing syntactic predicate), or when LT(i>k) is referenced. Consumption of characters is deferred. In other words, reading the next character is not done by conume(), but deferred until needed by LA or LT.

See Also: CharQueue

Field Summary
Readerinput
Constructor Summary
CharBuffer(Reader input_)
Create a character buffer
Method Summary
voidfill(int amount)
Ensure that the character buffer is sufficiently full

Field Detail

input

public transient Reader input

Constructor Detail

CharBuffer

public CharBuffer(Reader input_)
Create a character buffer

Method Detail

fill

public void fill(int amount)
Ensure that the character buffer is sufficiently full