Package aQute.bnd.properties

Class LineTracker

java.lang.Object

aQute.bnd.properties.LineTracker

public class LineTracker
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.List<Line>	fLines	The line information
private int	fTextLength	The length of the tracked text

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	LineTracker()	Creates a new line tracker.

Method Summary

Modifier and Type	Method	Description
int	computeNumberOfLines(java.lang.String text)
private int	createLines(java.lang.String text, int insertPosition, int offset)	Creates the line structure for the given text.
private int	findLine(int offset)	Binary search for the line at a given offset.
java.lang.String	getLineDelimiter(int line)
IRegion	getLineInformation(int line)
IRegion	getLineInformationOfOffset(int position)
int	getLineLength(int line)
int	getLineNumberOfOffset(int position)
int	getLineOffset(int line)
(package private) java.util.List<Line>	getLines()	Returns the internal data structure, a List of Lines.
int	getNumberOfLines()
int	getNumberOfLines(int position, int length)
private int	getNumberOfLines(int startLine, int offset, int length)	Returns the number of lines covered by the specified text range.
protected Document.DelimiterInfo	nextDelimiterInfo(java.lang.String text, int offset)	Returns the information about the first delimiter found in the given text starting at the given offset.
void	replace(int position, int length, java.lang.String text)
void	set(java.lang.String text)

Methods inherited from class java.lang.Object

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

Field Detail

fLines

private final java.util.List<Line> fLines

The line information

fTextLength

private int fTextLength

The length of the tracked text

Constructor Detail

LineTracker

protected LineTracker()

Creates a new line tracker.

Method Detail

findLine

private int findLine(int offset)

Binary search for the line at a given offset.

Parameters:

offset - the offset whose line should be found

Returns:

the line of the offset

getNumberOfLines

private int getNumberOfLines(int startLine,
                             int offset,
                             int length)
                      throws BadLocationException

Returns the number of lines covered by the specified text range.

Parameters:

startLine - the line where the text range starts

offset - the start offset of the text range

length - the length of the text range

Returns:

the number of lines covered by this text range @exception BadLocationException if range is undefined in this tracker

Throws:

BadLocationException

getLineLength

public final int getLineLength(int line)
                        throws BadLocationException

Throws:

BadLocationException

getLineNumberOfOffset

public final int getLineNumberOfOffset(int position)
                                throws BadLocationException

Throws:

BadLocationException

getLineInformationOfOffset

public final IRegion getLineInformationOfOffset(int position)
                                         throws BadLocationException

Throws:

BadLocationException

getLineInformation

public final IRegion getLineInformation(int line)
                                 throws BadLocationException

Throws:

BadLocationException

getLineOffset

public final int getLineOffset(int line)
                        throws BadLocationException

Throws:

BadLocationException

getNumberOfLines

public final int getNumberOfLines()

getNumberOfLines

public final int getNumberOfLines(int position,
                                  int length)
                           throws BadLocationException

Throws:

BadLocationException

computeNumberOfLines

public final int computeNumberOfLines(java.lang.String text)

getLineDelimiter

public final java.lang.String getLineDelimiter(int line)
                                        throws BadLocationException

Throws:

BadLocationException

nextDelimiterInfo

protected Document.DelimiterInfo nextDelimiterInfo(java.lang.String text,
                                                   int offset)

Returns the information about the first delimiter found in the given text starting at the given offset.

Parameters:

text - the text to be searched

offset - the offset in the given text

Returns:

the information of the first found delimiter or null

createLines

private int createLines(java.lang.String text,
                        int insertPosition,
                        int offset)

Creates the line structure for the given text. Newly created lines are inserted into the line structure starting at the given position. Returns the number of newly created lines.

Parameters:

text - the text for which to create a line structure

insertPosition - the position at which the newly created lines are inserted into the tracker's line structure

offset - the offset of all newly created lines

Returns:

the number of newly created lines

replace

public final void replace(int position,
                          int length,
                          java.lang.String text)
                   throws BadLocationException

Throws:

BadLocationException

set

public final void set(java.lang.String text)

getLines

final java.util.List<Line> getLines()

Returns the internal data structure, a List of Lines. Used only by TreeLineTracker#TreeLineTracker(ListLineTracker) .

Returns:

the internal list of lines.