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Class ExpandedTabWriter

Object
  extended by Writer
      extended by FilterWriter
          extended by ExpandedTabWriter
All Implemented Interfaces:
Closeable, Flushable, Appendable

public class ExpandedTabWriter
extends FilterWriter

Writes characters to a stream while expanding tabs ('\t') into spaces.

Since:
2.0
Author:
Martin Desruisseaux (IRD)

Field Summary
 
Fields inherited from class FilterWriter
out
 
Fields inherited from class Writer
lock
 
Constructor Summary
ExpandedTabWriter(Writer out)
          Constructs a filter which replaces tab characters ('\t') by spaces.
ExpandedTabWriter(Writer out, int tabWidth)
          Constructs a filter which replaces tab characters ('\t') by spaces, using the specified tab width.
 
Method Summary
 int getTabWidth()
          Returns the tab width.
 void setTabWidth(int tabWidth)
          Sets the tab width.
 void write(char[] buffer, int offset, int length)
          Writes a portion of an array of characters.
 void write(int c)
          Writes a single character.
 void write(String string, int offset, int length)
          Writes a portion of a string.
 
Methods inherited from class FilterWriter
close, flush
 
Methods inherited from class Writer
append, append, append, write, write
 
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ExpandedTabWriter

public ExpandedTabWriter(Writer out)
Constructs a filter which replaces tab characters ('\t') by spaces. Tab widths default to 8 characters.

Parameters:
out - A writer object to provide the underlying stream.

ExpandedTabWriter

public ExpandedTabWriter(Writer out,
                         int tabWidth)
                  throws IllegalArgumentException
Constructs a filter which replaces tab characters ('\t') by spaces, using the specified tab width.

Parameters:
out - A writer object to provide the underlying stream.
tabWidth - The tab width. Must be greater than 0.
Throws:
IllegalArgumentException - if tabWidth is not greater than 0.
Method Detail

setTabWidth

public void setTabWidth(int tabWidth)
                 throws IllegalArgumentException
Sets the tab width.

Parameters:
tabWidth - The tab width. Must be greater than 0.
Throws:
IllegalArgumentException - if tabWidth is not greater than 0.

getTabWidth

public int getTabWidth()
Returns the tab width.

Returns:
The tabulation width.

write

public void write(int c)
           throws IOException
Writes a single character.

Overrides:
write in class FilterWriter
Throws:
IOException - If an I/O error occurs.

write

public void write(char[] buffer,
                  int offset,
                  int length)
           throws IOException
Writes a portion of an array of characters.

Overrides:
write in class FilterWriter
Parameters:
buffer - Buffer of characters to be written
offset - Offset from which to start reading characters
length - Number of characters to be written
Throws:
IOException - If an I/O error occurs.

write

public void write(String string,
                  int offset,
                  int length)
           throws IOException
Writes a portion of a string.

Overrides:
write in class FilterWriter
Parameters:
string - String to be written
offset - Offset from which to start reading characters
length - Number of characters to be written
Throws:
IOException - If an I/O error occurs.


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