Package eu.bandm.tools.util2

Class IncludingCharBuf.CharBuf

java.lang.Object

eu.bandm.tools.util2.IncludingCharBuf.CharBuf

Enclosing class:

IncludingCharBuf<D>

protected class IncludingCharBuf.CharBuf
extends Object

Auxiliary class for IncludingCharBuf, representing exactly one source of character data, ie the original file or inserted expansions.

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	CHUNKSIZE
protected char[]	data	The complete data, read in when constructing the object.
protected IncludingCharBuf<D>.CharBuf	host	Chaining to calling CharBuf object.
protected int	len	The length of the complete data, in characters.
(package private) Location<D>	location	Position of the last consume().
protected int	pos	Current read position.
(package private) Location<D>	startLocation	Position of the first consume().

Constructor Summary

Constructors

Constructor	Description
CharBuf(char[] s, IncludingCharBuf<D>.CharBuf buf, Location<D> loc)	Create a new buffer, link it via host to the calling text, and take the array s as its character data.
CharBuf(Reader r, IncludingCharBuf<D>.CharBuf buf, Location<D> loc)	Create a new buffer, link it via host to the calling text, and fill it with all character data from r.

Method Summary

Modifier and Type	Method	Description
void	consume()	Advance position counter and line number, if linefeed is detected.
void	fill(Reader fr)
protected boolean	isNewline(char c)	Decide if the next character is a newline FIXME NOT COMPLETE !!
char	LA(int k)	Look ahead to the next k-th character, either in its own data, or in the caller.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

location

Location<D> location

Position of the last consume().

startLocation

Location<D> startLocation

Position of the first consume().

data

protected char[] data

The complete data, read in when constructing the object.

len

protected int len

The length of the complete data, in characters.

CHUNKSIZE

protected final int CHUNKSIZE

See Also:

• Constant Field Values

pos

protected int pos

Current read position.

host

protected IncludingCharBuf<D>.CharBuf host

Chaining to calling CharBuf object.

Constructor Details

CharBuf

public CharBuf(Reader r,
 IncludingCharBuf<D>.CharBuf buf,
 Location<D> loc)
        throws IOException

Create a new buffer, link it via host to the calling text, and fill it with all character data from r.

Parameters:

r - source

buf - calling predecessor

loc - location of the start of the data

Throws:

IOException

CharBuf

public CharBuf(char[] s,
 IncludingCharBuf<D>.CharBuf buf,
 Location<D> loc)

Create a new buffer, link it via host to the calling text, and take the array s as its character data.

Parameters:

s - a character store, directly used by the new buffer.

buf - calling predecessor

loc - location of the start of the data

Method Details

fill

public void fill(Reader fr)
          throws IOException

Throws:

IOException

LA

public char LA(int k)

Look ahead to the next k-th character, either in its own data, or in the caller. The next-to-consume character is looked at with k=0(zero).

consume

public void consume()

Advance position counter and line number, if linefeed is detected. Return to the including buffer, if this has reached its end, is made by the calling level in IncludingCharBuf FIXME WARUM AUSKOMMENTIERT ????

isNewline

protected boolean isNewline(char c)

Decide if the next character is a newline FIXME NOT COMPLETE !!