FormatBuffer.java, [...]: New classes to implement attributed iterators in java.text.
2004-05-04 Guilhem Lavaux <guilhem@kaffe.org> * gnu/java/text/FormatBuffer.java, gnu/java/text/AttributedFormatBuffer.java, gnu/java/text/StringFormatBuffer.java: New classes to implement attributed iterators in java.text. * gnu/java/text/FormatCharacterIterator.java: Moved from java/text as it is an internal class. * java/text/FormatCharacterIterator.java: Removed. * java/text/Format.java: Import gnu.java.text.FormatCharacterIterator. * Makefile.am (java_source_files): Added new files. * Makefile.in: Regenerated. From-SVN: r81479
This commit is contained in:
Guilhem Lavaux
committed by
Michael Koch
Michael Koch
parent
c6c8779bfc
commit
065afdfa8e
@@ -0,0 +1,247 @@
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/* AttributedFormatBuffer.java -- Implements an attributed FormatBuffer.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
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the Free Software Foundation; either version 2, or (at your option)
|
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any later version.
|
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|
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GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; see the file COPYING. If not, write to the
|
||||
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA.
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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||||
exception statement from your version. */
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package gnu.java.text;
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import java.text.AttributedCharacterIterator;
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import java.util.ArrayList;
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import java.util.HashMap;
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/**
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* This class is an implementation of a FormatBuffer with attributes.
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*
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* @author Guilhem Lavaux <guilhem@kaffe.org>
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* @date April 10, 2004
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*/
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public class AttributedFormatBuffer implements FormatBuffer
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{
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private StringBuffer buffer;
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private ArrayList ranges;
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private ArrayList attributes;
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private int[] a_ranges;
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private HashMap[] a_attributes;
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private int startingRange;
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AttributedCharacterIterator.Attribute defaultAttr;
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/**
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* This constructor accepts a StringBuffer. If the buffer contains
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* already some characters they will not be attributed.
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*/
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public AttributedFormatBuffer(StringBuffer buffer)
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{
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this.buffer = buffer;
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this.ranges = new ArrayList();
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this.attributes = new ArrayList();
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this.defaultAttr = null;
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if (buffer.length() != 0)
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{
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this.startingRange = buffer.length();
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addAttribute(buffer.length(), null);
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}
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else
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this.startingRange = -1;
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}
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public AttributedFormatBuffer(int prebuffer)
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{
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this(new StringBuffer(prebuffer));
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}
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public AttributedFormatBuffer()
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{
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this(10);
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}
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/**
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* This method is a helper function for formatters. Given a set of ranges
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* and attributes it adds exactly one attribute for the range of characters
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* comprised between the last entry in 'ranges' and the specified new range.
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*
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* @param new_range A new range to insert in the list.
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* @param new_attribute A new attribute to insert in the list.
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*/
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private final void addAttribute(int new_range, AttributedCharacterIterator.Attribute attr)
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{
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HashMap map;
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if (attr != null)
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{
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map = new HashMap();
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map.put(attr, attr);
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attributes.add(map);
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}
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else
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attributes.add(null);
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ranges.add(new Integer(new_range));
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}
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public void append(String s)
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{
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if (startingRange < 0)
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startingRange = 0;
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buffer.append(s);
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}
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public void append(String s, AttributedCharacterIterator.Attribute attr)
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{
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setDefaultAttribute(attr);
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startingRange = buffer.length();
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append(s);
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setDefaultAttribute(null);
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}
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public void append(String s, int[] ranges, HashMap[] attrs)
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{
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int curPos = buffer.length();
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setDefaultAttribute(null);
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if (ranges != null)
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{
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for (int i = 0; i < ranges.length; i++)
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{
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this.ranges.add(new Integer(ranges[i] + curPos));
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this.attributes.add(attrs[i]);
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}
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}
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startingRange = buffer.length();
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buffer.append(s);
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}
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public void append(char c)
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{
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if (startingRange < 0)
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startingRange = buffer.length();
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buffer.append(c);
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}
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public void append(char c, AttributedCharacterIterator.Attribute attr)
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{
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setDefaultAttribute(attr);
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buffer.append(c);
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setDefaultAttribute(null);
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}
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public void setDefaultAttribute(AttributedCharacterIterator.Attribute attr)
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{
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if (attr == defaultAttr)
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return;
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int currentPos = buffer.length();
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if (startingRange != currentPos && startingRange >= 0)
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{
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addAttribute(currentPos, defaultAttr);
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}
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defaultAttr = attr;
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startingRange = currentPos;
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}
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public AttributedCharacterIterator.Attribute getDefaultAttribute()
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{
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return defaultAttr;
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}
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public void cutTail(int length)
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{
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buffer.setLength(buffer.length()-length);
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}
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public int length()
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{
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return buffer.length();
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}
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public void clear()
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{
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buffer.setLength(0);
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ranges.clear();
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attributes.clear();
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defaultAttr = null;
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startingRange = -1;
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}
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/**
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* This method synchronizes the state of the attribute array.
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* After calling it you may call {@link #getDefaultAttribute()}.
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*/
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public void sync()
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{
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if (startingRange < 0 || startingRange == buffer.length())
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return;
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addAttribute(buffer.length(), defaultAttr);
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a_ranges = new int[ranges.size()];
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for (int i = 0; i < a_ranges.length; i++)
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a_ranges[i] = ((Integer)(ranges.get (i))).intValue();
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a_attributes = new HashMap[attributes.size()];
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System.arraycopy(attributes.toArray(), 0, a_attributes, 0, a_attributes.length);
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}
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/**
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* This method returns the internal StringBuffer describing
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* the attributed string.
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*
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* @return An instance of StringBuffer which contains the string.
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*/
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public StringBuffer getBuffer()
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{
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return buffer;
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}
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/**
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* This method returns the ranges for the attributes.
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*
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* @return An array of int describing the ranges.
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*/
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public int[] getRanges()
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{
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return a_ranges;
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}
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/**
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* This method returns the array containing the map on the
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* attributes.
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*
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* @return An array of {@link java.util.Map} containing the attributes.
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*/
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public HashMap[] getAttributes()
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{
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return a_attributes;
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}
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}
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@@ -0,0 +1,136 @@
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/* FormatBuffer.java -- General interface to build attributed strings.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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|
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GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; see the file COPYING. If not, write to the
|
||||
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA.
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
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package gnu.java.text;
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import java.text.AttributedCharacterIterator;
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import java.util.HashMap;
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/**
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* This interface describes a modifiable buffer which contains attributed
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* characters. The implementation may or may not implements attributes. It
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* aims to greatly simplify and clarify the implementation of java.text
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* formatters. The buffer may be appended or have its tail cut. It may also
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* be completely cleant up.
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*
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* @author Guilhem Lavaux <guilhem@kaffe.org>
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* @date April 10, 2004
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*/
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public interface FormatBuffer
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{
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/**
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* This method appends a simple string to the buffer. This part of
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* the buffer will be attributed using the default attribute.
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*
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* @param s The string to append to the buffer.
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*/
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public void append(String s);
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/**
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* This method appends a simple string to the buffer. This part of
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* the buffer will have the specified attribute (and only this one).
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* The default attribute may be changed after calling this method.
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*
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* @param s The string to append to the buffer.
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* @param attr Attribute to use for the string in the buffer.
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*/
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public void append(String s, AttributedCharacterIterator.Attribute attr);
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/**
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* This method appends a simple string to the buffer. This part of
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* the buffer will be attributed using the specified ranges and attributes.
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* To have an example on how to specify ranges see {@link gnu.java.text.FormatCharacterIterator}.
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*
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* @param s The string to append to the buffer.
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* @param ranges The ranges describing how the attributes should be applied
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* to the string.
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* @param attrs The attributes of the string in the buffer.
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*/
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public void append(String s, int[] ranges, HashMap[] attrs);
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/**
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* This method appends a simple char to the buffer. This part of
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* the buffer will be attributed using the default attribute.
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*
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* @param c The character to append to the buffer.
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*/
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public void append(char c);
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/**
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* This method appends a simple character to the buffer. This part of
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* the buffer will have the specified attribute (and only this one).
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* The default attribute may be changed after calling this method.
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*
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* @param c The character to append to the buffer.
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* @param attr Attribute to use for the character in the buffer.
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*/
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public void append(char c, AttributedCharacterIterator.Attribute attr);
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/**
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* This method changes the current default attribute for the next string
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* or character which will be appended to the buffer.
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*
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* @param attr The attribute which will be used by default.
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*/
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public void setDefaultAttribute(AttributedCharacterIterator.Attribute attr);
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/**
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* This method returns the current default attribute for the buffer.
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*
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* @return The default attribute for the buffer.
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*/
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public AttributedCharacterIterator.Attribute getDefaultAttribute();
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/**
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* This method cuts the last characters of the buffer. The number of
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* characters to cut is given by "length".
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*
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* @param length Number of characters to cut at the end of the buffer.
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*/
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public void cutTail(int length);
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/**
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* This method resets completely the buffer.
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*/
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public void clear();
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/**
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* This method returns the number of character in the buffer.
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*
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* @return The number of character in the buffer.
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*/
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public int length();
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}
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@@ -0,0 +1,534 @@
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/* FormatCharacter.java -- Implementation of AttributedCharacterIterator for
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formatters.
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Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
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|
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This file is part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; see the file COPYING. If not, write to the
|
||||
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA.
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
package gnu.java.text;
|
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|
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import gnu.classpath.Configuration;
|
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|
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import java.text.AttributedCharacterIterator;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
|
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import java.util.Map;
|
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import java.util.Set;
|
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import java.util.Vector;
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/**
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* This class should not be put public and it is only intended to the
|
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* classes of the java.text package. Its aim is to build a segmented
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* character iterator by appending strings and adding attributes to
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* portions of strings. The code intends to do some optimization
|
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* concerning memory consumption and attribute access but at the
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* end it is only an AttributedCharacterIterator.
|
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*
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* @author Guilhem Lavaux <guilhem@kaffe.org>
|
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* @date November 22, 2003
|
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*/
|
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public class FormatCharacterIterator implements AttributedCharacterIterator
|
||||
{
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private String formattedString;
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private int charIndex;
|
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private int attributeIndex;
|
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private int[] ranges;
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private HashMap[] attributes;
|
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|
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/**
|
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* This constructor builds an empty iterated strings. The attributes
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* are empty and so is the string. However you may append strings
|
||||
* and attributes to this iterator.
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||||
*/
|
||||
public FormatCharacterIterator()
|
||||
{
|
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formattedString = "";
|
||||
ranges = new int[0];
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||||
attributes = new HashMap[0];
|
||||
}
|
||||
|
||||
/**
|
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* This constructor take a string <code>s</code>, a set of ranges
|
||||
* and the corresponding attributes. This is used to build an iterator.
|
||||
* The array <code>ranges</code> should be formatted as follow:
|
||||
* each element of <code>ranges</code> specifies the index in the string
|
||||
* until which the corresponding map of attributes at the same position
|
||||
* is applied. For example, if you have:
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||||
* <pre>
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||||
* s = "hello";
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||||
* ranges = new int[] { 2, 6 };
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||||
* attributes = new HashMap[2];
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* </pre>
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||||
* <code>"he"</code> will have the attributes <code>attributes[0]</code>,
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||||
* <code>"llo"</code> the <code>attributes[1]</code>.
|
||||
*/
|
||||
public FormatCharacterIterator (String s, int[] ranges, HashMap[] attributes)
|
||||
{
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||||
formattedString = s;
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||||
this.ranges = ranges;
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||||
this.attributes = attributes;
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||||
}
|
||||
|
||||
/*
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||||
* The following methods are inherited from AttributedCharacterIterator,
|
||||
* and thus are already documented.
|
||||
*/
|
||||
|
||||
public Set getAllAttributeKeys()
|
||||
{
|
||||
if (attributes != null && attributes[attributeIndex] != null)
|
||||
return attributes[attributeIndex].keySet();
|
||||
else
|
||||
return new HashSet();
|
||||
}
|
||||
|
||||
public Map getAttributes()
|
||||
{
|
||||
if (attributes != null && attributes[attributeIndex] != null)
|
||||
return attributes[attributeIndex];
|
||||
else
|
||||
return new HashMap();
|
||||
}
|
||||
|
||||
public Object getAttribute (AttributedCharacterIterator.Attribute attrib)
|
||||
{
|
||||
if (attributes != null && attributes[attributeIndex] != null)
|
||||
return attributes[attributeIndex].get (attrib);
|
||||
else
|
||||
return null;
|
||||
}
|
||||
|
||||
public int getRunLimit(Set reqAttrs)
|
||||
{
|
||||
if (attributes == null)
|
||||
return formattedString.length();
|
||||
|
||||
int currentAttrIndex = attributeIndex;
|
||||
Set newKeys;
|
||||
|
||||
do
|
||||
{
|
||||
currentAttrIndex++;
|
||||
if (currentAttrIndex == attributes.length)
|
||||
return formattedString.length();
|
||||
if (attributes[currentAttrIndex] == null)
|
||||
break;
|
||||
newKeys = attributes[currentAttrIndex].keySet();
|
||||
}
|
||||
while (newKeys.containsAll (reqAttrs));
|
||||
|
||||
return ranges[currentAttrIndex-1];
|
||||
}
|
||||
|
||||
public int getRunLimit (AttributedCharacterIterator.Attribute attribute)
|
||||
{
|
||||
Set s = new HashSet();
|
||||
|
||||
s.add (attribute);
|
||||
return getRunLimit (s);
|
||||
}
|
||||
|
||||
public int getRunLimit()
|
||||
{
|
||||
if (attributes == null)
|
||||
return formattedString.length();
|
||||
if (attributes[attributeIndex] == null)
|
||||
{
|
||||
for (int i=attributeIndex+1;i<attributes.length;i++)
|
||||
if (attributes[i] != null)
|
||||
return ranges[i-1];
|
||||
return formattedString.length();
|
||||
}
|
||||
|
||||
return getRunLimit (attributes[attributeIndex].keySet());
|
||||
}
|
||||
|
||||
public int getRunStart (Set reqAttrs)
|
||||
{
|
||||
if (attributes == null)
|
||||
return formattedString.length();
|
||||
|
||||
int currentAttrIndex = attributeIndex;
|
||||
Set newKeys = null;
|
||||
|
||||
do
|
||||
{
|
||||
if (currentAttrIndex == 0)
|
||||
return 0;
|
||||
|
||||
currentAttrIndex--;
|
||||
if (attributes[currentAttrIndex] == null)
|
||||
break;
|
||||
newKeys = attributes[currentAttrIndex].keySet();
|
||||
}
|
||||
while (newKeys.containsAll (reqAttrs));
|
||||
|
||||
return (currentAttrIndex > 0) ? ranges[currentAttrIndex-1] : 0;
|
||||
}
|
||||
|
||||
public int getRunStart()
|
||||
{
|
||||
if (attributes == null)
|
||||
return 0;
|
||||
|
||||
if (attributes[attributeIndex] == null)
|
||||
{
|
||||
for (int i=attributeIndex;i>0;i--)
|
||||
if (attributes[i] != null)
|
||||
return ranges[attributeIndex-1];
|
||||
return 0;
|
||||
}
|
||||
|
||||
return getRunStart (attributes[attributeIndex].keySet());
|
||||
}
|
||||
|
||||
public int getRunStart (AttributedCharacterIterator.Attribute attribute)
|
||||
{
|
||||
Set s = new HashSet();
|
||||
|
||||
s.add (attribute);
|
||||
return getRunStart (s);
|
||||
}
|
||||
|
||||
public Object clone()
|
||||
{
|
||||
return new FormatCharacterIterator (formattedString, ranges, attributes);
|
||||
}
|
||||
|
||||
/*
|
||||
* The following methods are inherited from CharacterIterator and thus
|
||||
* are already documented.
|
||||
*/
|
||||
|
||||
public char current()
|
||||
{
|
||||
return formattedString.charAt (charIndex);
|
||||
}
|
||||
|
||||
public char first()
|
||||
{
|
||||
charIndex = 0;
|
||||
attributeIndex = 0;
|
||||
return formattedString.charAt (0);
|
||||
}
|
||||
|
||||
public int getBeginIndex()
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
public int getEndIndex()
|
||||
{
|
||||
return formattedString.length();
|
||||
}
|
||||
|
||||
public int getIndex()
|
||||
{
|
||||
return charIndex;
|
||||
}
|
||||
|
||||
public char last()
|
||||
{
|
||||
charIndex = formattedString.length()-1;
|
||||
if (attributes != null)
|
||||
attributeIndex = attributes.length-1;
|
||||
return formattedString.charAt (charIndex);
|
||||
}
|
||||
|
||||
public char next()
|
||||
{
|
||||
charIndex++;
|
||||
if (charIndex >= formattedString.length())
|
||||
{
|
||||
charIndex = getEndIndex();
|
||||
return DONE;
|
||||
}
|
||||
if (attributes != null)
|
||||
{
|
||||
if (charIndex >= ranges[attributeIndex])
|
||||
attributeIndex++;
|
||||
}
|
||||
return formattedString.charAt (charIndex);
|
||||
}
|
||||
|
||||
public char previous()
|
||||
{
|
||||
charIndex--;
|
||||
if (charIndex < 0)
|
||||
{
|
||||
charIndex = 0;
|
||||
return DONE;
|
||||
}
|
||||
|
||||
if (attributes != null)
|
||||
{
|
||||
if (charIndex < ranges[attributeIndex])
|
||||
attributeIndex--;
|
||||
}
|
||||
return formattedString.charAt (charIndex);
|
||||
}
|
||||
|
||||
public char setIndex (int position)
|
||||
{
|
||||
if (position < 0 || position > formattedString.length())
|
||||
throw new IllegalArgumentException ("position is out of range");
|
||||
|
||||
charIndex = position;
|
||||
if (attributes != null)
|
||||
{
|
||||
for (attributeIndex=0;attributeIndex<attributes.length;
|
||||
attributeIndex++)
|
||||
if (ranges[attributeIndex] > charIndex)
|
||||
break;
|
||||
attributeIndex--;
|
||||
}
|
||||
if (charIndex == formattedString.length())
|
||||
return DONE;
|
||||
else
|
||||
return formattedString.charAt (charIndex);
|
||||
}
|
||||
|
||||
/**
|
||||
* This method merge the specified attributes and ranges with the
|
||||
* internal tables. This method is in charge of the optimization
|
||||
* of tables. Two following sets of attributes are never the same.
|
||||
*
|
||||
* @see #FormatCharacterIterator()
|
||||
*
|
||||
* @param attributes the new array attributes to apply to the string.
|
||||
*/
|
||||
public void mergeAttributes (HashMap[] attributes, int[] ranges)
|
||||
{
|
||||
Vector new_ranges = new Vector();
|
||||
Vector new_attributes = new Vector();
|
||||
int i = 0, j = 0;
|
||||
|
||||
debug("merging " + attributes.length + " attrs");
|
||||
|
||||
while (i < this.ranges.length && j < ranges.length)
|
||||
{
|
||||
if (this.attributes[i] != null)
|
||||
{
|
||||
new_attributes.add (this.attributes[i]);
|
||||
if (attributes[j] != null)
|
||||
this.attributes[i].putAll (attributes[j]);
|
||||
}
|
||||
else
|
||||
{
|
||||
new_attributes.add (attributes[j]);
|
||||
}
|
||||
if (this.ranges[i] == ranges[j])
|
||||
{
|
||||
new_ranges.add (new Integer (ranges[j]));
|
||||
i++;
|
||||
j++;
|
||||
}
|
||||
else if (this.ranges[i] < ranges[j])
|
||||
{
|
||||
new_ranges.add (new Integer (this.ranges[i]));
|
||||
i++;
|
||||
}
|
||||
else
|
||||
{
|
||||
new_ranges.add (new Integer (ranges[j]));
|
||||
j++;
|
||||
}
|
||||
}
|
||||
|
||||
if (i != this.ranges.length)
|
||||
{
|
||||
for (;i<this.ranges.length;i++)
|
||||
{
|
||||
new_attributes.add (this.attributes[i]);
|
||||
new_ranges.add (new Integer (this.ranges[i]));
|
||||
}
|
||||
}
|
||||
if (j != ranges.length)
|
||||
{
|
||||
for (;j<ranges.length;j++)
|
||||
{
|
||||
new_attributes.add (attributes[j]);
|
||||
new_ranges.add (new Integer (ranges[j]));
|
||||
}
|
||||
}
|
||||
|
||||
this.attributes = new HashMap[new_attributes.size()];
|
||||
this.ranges = new int[new_ranges.size()];
|
||||
System.arraycopy (new_attributes.toArray(), 0, this.attributes,
|
||||
0, this.attributes.length);
|
||||
|
||||
for (i=0;i<new_ranges.size();i++)
|
||||
{
|
||||
this.ranges[i] = ((Integer)new_ranges.elementAt (i)).intValue();
|
||||
}
|
||||
|
||||
dumpTable();
|
||||
}
|
||||
|
||||
/**
|
||||
* This method appends to the internal attributed string the attributed
|
||||
* string contained in the specified iterator.
|
||||
*
|
||||
* @param iterator the iterator which contains the attributed string to
|
||||
* append to this iterator.
|
||||
*/
|
||||
public void append (AttributedCharacterIterator iterator)
|
||||
{
|
||||
char c = iterator.first();
|
||||
Vector more_ranges = new Vector();
|
||||
Vector more_attributes = new Vector();
|
||||
|
||||
do
|
||||
{
|
||||
formattedString = formattedString + String.valueOf (c);
|
||||
// TODO: Reduce the size of the output array.
|
||||
more_attributes.add (iterator.getAttributes());
|
||||
more_ranges.add (new Integer (formattedString.length()));
|
||||
// END TOOD
|
||||
c = iterator.next();
|
||||
}
|
||||
while (c != DONE);
|
||||
|
||||
HashMap[] new_attributes = new HashMap[attributes.length
|
||||
+ more_attributes.size()];
|
||||
int[] new_ranges = new int[ranges.length + more_ranges.size()];
|
||||
|
||||
System.arraycopy (attributes, 0, new_attributes, 0, attributes.length);
|
||||
System.arraycopy (more_attributes.toArray(), 0, new_attributes,
|
||||
attributes.length, more_attributes.size());
|
||||
|
||||
System.arraycopy (ranges, 0, new_ranges, 0, ranges.length);
|
||||
Object[] new_ranges_array = more_ranges.toArray();
|
||||
for (int i = 0; i < more_ranges.size();i++)
|
||||
new_ranges[i+ranges.length] = ((Integer) new_ranges_array[i]).intValue();
|
||||
|
||||
attributes = new_attributes;
|
||||
ranges = new_ranges;
|
||||
}
|
||||
|
||||
/**
|
||||
* This method appends an attributed string which attributes are specified
|
||||
* directly in the calling parameters.
|
||||
*
|
||||
* @param text The string to append.
|
||||
* @param local_attributes The attributes to put on this string in the
|
||||
* iterator. If it is <code>null</code> the string will simply have no
|
||||
* attributes.
|
||||
*/
|
||||
public void append (String text, HashMap local_attributes)
|
||||
{
|
||||
int[] new_ranges = new int[ranges.length+1];
|
||||
HashMap[] new_attributes = new HashMap[attributes.length+1];
|
||||
|
||||
formattedString += text;
|
||||
System.arraycopy (attributes, 0, new_attributes, 0, attributes.length);
|
||||
System.arraycopy (ranges, 0, new_ranges, 0, ranges.length);
|
||||
new_ranges[ranges.length] = formattedString.length();
|
||||
new_attributes[attributes.length] = local_attributes;
|
||||
|
||||
ranges = new_ranges;
|
||||
attributes = new_attributes;
|
||||
}
|
||||
|
||||
/**
|
||||
* This method appends a string without attributes. It is completely
|
||||
* equivalent to call {@link #append(String,HashMap)} with local_attributes
|
||||
* equal to <code>null</code>.
|
||||
*
|
||||
* @param text The string to append to the iterator.
|
||||
*/
|
||||
public void append (String text)
|
||||
{
|
||||
append (text, null);
|
||||
}
|
||||
|
||||
/**
|
||||
* This method adds a set of attributes to a range of character. The
|
||||
* bounds are always inclusive. In the case many attributes have to
|
||||
* be added it is advised to directly use {@link #mergeAttributes([Ljava.util.HashMap;[I}
|
||||
*
|
||||
* @param attributes Attributes to merge into the iterator.
|
||||
* @param range_start Lower bound of the range of characters which will receive the
|
||||
* attribute.
|
||||
* @param range_end Upper bound of the range of characters which will receive the
|
||||
* attribute.
|
||||
*
|
||||
* @throws IllegalArgumentException if ranges are out of bounds.
|
||||
*/
|
||||
public void addAttributes(HashMap attributes, int range_start, int range_end)
|
||||
{
|
||||
if (range_start == 0)
|
||||
mergeAttributes(new HashMap[] { attributes }, new int[] { range_end });
|
||||
else
|
||||
mergeAttributes(new HashMap[] { null, attributes }, new int[] { range_start, range_end });
|
||||
}
|
||||
|
||||
final private void debug(String s)
|
||||
{
|
||||
if (Configuration.DEBUG)
|
||||
System.out.println(s);
|
||||
}
|
||||
|
||||
final private void dumpTable()
|
||||
{
|
||||
int start_range = 0;
|
||||
|
||||
if (!Configuration.DEBUG)
|
||||
return;
|
||||
|
||||
System.out.println("Dumping internal table:");
|
||||
for (int i = 0; i < ranges.length; i++)
|
||||
{
|
||||
System.out.print("\t" + start_range + " => " + ranges[i] + ":");
|
||||
if (attributes[i] == null)
|
||||
System.out.println("null");
|
||||
else
|
||||
{
|
||||
Set keyset = attributes[i].keySet();
|
||||
if (keyset != null)
|
||||
{
|
||||
Iterator keys = keyset.iterator();
|
||||
|
||||
while (keys.hasNext())
|
||||
System.out.print(" " + keys.next());
|
||||
}
|
||||
else
|
||||
System.out.println("keySet null");
|
||||
System.out.println();
|
||||
}
|
||||
}
|
||||
System.out.println();
|
||||
System.out.flush();
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,121 @@
|
||||
/* StringFormatBuffer.java -- Implements FormatBuffer using StringBuffer.
|
||||
Copyright (C) 2004 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; see the file COPYING. If not, write to the
|
||||
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA.
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
package gnu.java.text;
|
||||
|
||||
import java.text.AttributedCharacterIterator;
|
||||
import java.util.HashMap;
|
||||
|
||||
/**
|
||||
* This class is an implementation of a FormatBuffer without attributes.
|
||||
*
|
||||
* @author Guilhem Lavaux <guilhem@kaffe.org>
|
||||
* @date April 10, 2004
|
||||
*/
|
||||
public class StringFormatBuffer implements FormatBuffer
|
||||
{
|
||||
private StringBuffer buffer;
|
||||
private AttributedCharacterIterator.Attribute defaultAttr;
|
||||
|
||||
public StringFormatBuffer(int prebuffer)
|
||||
{
|
||||
buffer = new StringBuffer(prebuffer);
|
||||
}
|
||||
|
||||
public StringFormatBuffer(StringBuffer buffer)
|
||||
{
|
||||
this.buffer = buffer;
|
||||
}
|
||||
|
||||
public void append(String s)
|
||||
{
|
||||
buffer.append(s);
|
||||
}
|
||||
|
||||
public void append(String s, AttributedCharacterIterator.Attribute attr)
|
||||
{
|
||||
buffer.append(s);
|
||||
}
|
||||
|
||||
public void append(String s, int[] ranges, HashMap[] attrs)
|
||||
{
|
||||
buffer.append(s);
|
||||
}
|
||||
|
||||
public void append(char c)
|
||||
{
|
||||
buffer.append(c);
|
||||
}
|
||||
|
||||
public void append(char c, AttributedCharacterIterator.Attribute attr)
|
||||
{
|
||||
buffer.append(c);
|
||||
}
|
||||
|
||||
public void setDefaultAttribute(AttributedCharacterIterator.Attribute attr)
|
||||
{
|
||||
defaultAttr = attr;
|
||||
}
|
||||
|
||||
public AttributedCharacterIterator.Attribute getDefaultAttribute()
|
||||
{
|
||||
return defaultAttr;
|
||||
}
|
||||
|
||||
public void cutTail(int length)
|
||||
{
|
||||
buffer.setLength(buffer.length()-length);
|
||||
}
|
||||
|
||||
public int length()
|
||||
{
|
||||
return buffer.length();
|
||||
}
|
||||
|
||||
public void clear()
|
||||
{
|
||||
buffer.setLength(0);
|
||||
}
|
||||
|
||||
/**
|
||||
* This method returns the internal {@link java.lang.StringBuffer} which
|
||||
* contains the string of character.
|
||||
*/
|
||||
public StringBuffer getBuffer()
|
||||
{
|
||||
return buffer;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user