org.eclipse.jdt.core/formatter/org/eclipse/jdt/internal/formatter/align/Alignment.java - gerrit/aspectj/org.aspectj.shadows - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.formatter.align;

 import org.eclipse.jdt.internal.formatter.Location;
 import org.eclipse.jdt.internal.formatter.Scribe;

 /**
  * Alignment management
  *
  * @since 2.1
  */
 public class Alignment {

 	// name of alignment
 	public String name;

 	// link to enclosing alignment
 	public Alignment enclosing;

 	// start location of this alignment
 	public Location location;

 	// indentation management
 	public int fragmentIndex;
 	public int fragmentCount;
 	public int[] fragmentIndentations;
 	public boolean needRedoColumnAlignment;

 	// chunk management
 	public int chunkStartIndex;
 	public int chunkKind;

 	// break management
 	public int originalIndentationLevel;
 	public int breakIndentationLevel;
 	public int shiftBreakIndentationLevel;
 	public int[] fragmentBreaks;
 	public boolean wasSplit;

 	public Scribe scribe;

 	/*
 	 * Alignment modes
 	 */
 	public static final int M_FORCE = 1; // if bit set, then alignment will be non-optional (default is optional)
 	public static final int M_INDENT_ON_COLUMN = 2; // if bit set, broken fragments will be aligned on current location column (default is to break at current indentation level)
 	public static final int	M_INDENT_BY_ONE = 4; // if bit set, broken fragments will be indented one level below current (not using continuation indentation)

 	// split modes can be combined either with M_FORCE or M_INDENT_ON_COLUMN

 	/** foobar(#fragment1, #fragment2, <ul>
 	 *  <li>    #fragment3, #fragment4 </li>
 	 * </ul>
 	 */
 	public static final int M_COMPACT_SPLIT = 16; // fill each line with all possible fragments

 	/** foobar(<ul>
 	 * <li>    #fragment1, #fragment2,  </li>
 	 * <li>     #fragment5, #fragment4, </li>
 	 * </ul>
 	 */
 	public static final int M_COMPACT_FIRST_BREAK_SPLIT = 32; //  compact mode, but will first try to break before first fragment

 	/** foobar(<ul>
 	 * <li>     #fragment1,  </li>
 	 * <li>     #fragment2,  </li>
 	 * <li>     #fragment3 </li>
 	 * <li>     #fragment4,  </li>
 	 * </ul>
 	 */
 	public static final int M_ONE_PER_LINE_SPLIT = 32+16; // one fragment per line

 	/**
 	 * foobar(<ul>
 	 * <li>     #fragment1,  </li>
 	 * <li>        #fragment2,  </li>
 	 * <li>        #fragment3 </li>
 	 * <li>        #fragment4,  </li>
 	 * </ul>
 	 */
 	public static final int M_NEXT_SHIFTED_SPLIT = 64; // one fragment per line, subsequent are indented further

 	/** foobar(#fragment1, <ul>
 	 * <li>      #fragment2,  </li>
 	 * <li>      #fragment3 </li>
 	 * <li>      #fragment4,  </li>
 	 * </ul>
 	 */
 	public static final int M_NEXT_PER_LINE_SPLIT = 64+16; // one per line, except first fragment (if possible)

 	//64+32
 	//64+32+16

 	// mode controlling column alignments
 	/**
 	 * <table BORDER COLS=4 WIDTH="100%" >
 	 * <tr><td>#fragment1A</td>            <td>#fragment2A</td>       <td>#fragment3A</td>  <td>#very-long-fragment4A</td></tr>
 	 * <tr><td>#fragment1B</td>            <td>#long-fragment2B</td>  <td>#fragment3B</td>  <td>#fragment4B</td></tr>
 	 * <tr><td>#very-long-fragment1C</td>  <td>#fragment2C</td>       <td>#fragment3C</td>  <td>#fragment4C</td></tr>
 	 * </table>
 	 */
 	public static final int M_MULTICOLUMN = 256; // fragments are on same line, but multiple line of fragments will be aligned vertically

 	public static final int M_NO_ALIGNMENT = 0;

 	public int mode;

 	public static final int SPLIT_MASK = M_ONE_PER_LINE_SPLIT | M_NEXT_SHIFTED_SPLIT | M_COMPACT_SPLIT | M_COMPACT_FIRST_BREAK_SPLIT | M_NEXT_PER_LINE_SPLIT;

 	// alignment tie-break rules - when split is needed, will decide whether innermost/outermost alignment is to be chosen
 	public static final int R_OUTERMOST = 1;
 	public static final int R_INNERMOST = 2;
 	public int tieBreakRule;

 	// alignment effects on a per fragment basis
 	public static int NONE = 0;
 	public static int BREAK = 1;

 	// chunk kind
 	public static final int CHUNK_FIELD = 1;
 	public static final int CHUNK_METHOD = 2;
 	public static final int CHUNK_TYPE = 3;
 	public static final int CHUNK_ENUM = 4;

 	// location to align and break on.
 	public Alignment(String name, int mode, int tieBreakRule, Scribe scribe, int fragmentCount, int sourceRestart, int continuationIndent){

 		this.name = name;
 		this.location = new Location(scribe, sourceRestart);
 		this.mode = mode;
 		this.tieBreakRule = tieBreakRule;
 		this.fragmentCount = fragmentCount;
 		this.scribe = scribe;
 		this.originalIndentationLevel = this.scribe.indentationLevel;
 		this.wasSplit = false;

 		// initialize the break indentation level, using modes and continuationIndentationLevel preference
 		final int indentSize = this.scribe.indentationSize;
 		int currentColumn = this.location.outputColumn;
 		if (currentColumn == 1) {
 		    currentColumn = this.location.outputIndentationLevel + 1;
 		}

 		if ((mode & M_INDENT_ON_COLUMN) != 0) {
 			// indent broken fragments at next indentation level, based on current column
 			this.breakIndentationLevel = this.scribe.getNextIndentationLevel(currentColumn);
 			if (this.breakIndentationLevel == this.location.outputIndentationLevel) {
 				this.breakIndentationLevel += (continuationIndent * indentSize);
 			}
 		} else if ((mode & M_INDENT_BY_ONE) != 0) {
 			// indent broken fragments exactly one level deeper than current indentation
 			this.breakIndentationLevel = this.location.outputIndentationLevel + indentSize;
 		} else {
 			this.breakIndentationLevel = this.location.outputIndentationLevel + continuationIndent * indentSize;
 		}
 		this.shiftBreakIndentationLevel = this.breakIndentationLevel + indentSize;

 		this.fragmentIndentations = new int[this.fragmentCount];
 		this.fragmentBreaks = new int[this.fragmentCount];

 		// check for forced alignments
 		if ((this.mode & M_FORCE) != 0) {
 			couldBreak();
 		}
 	}

 	public boolean checkChunkStart(int kind, int startIndex, int sourceRestart) {
 		if (this.chunkKind != kind) {
 			this.chunkKind = kind;

 			// when redoing same chunk alignment, must not reset
 			if (startIndex != this.chunkStartIndex) {
 				this.chunkStartIndex = startIndex;
 				this.location.update(this.scribe, sourceRestart);
 				reset();
 			}
 			return true;
 		}
 		return false;
 	}

 	public void checkColumn() {
 		if ((this.mode & M_MULTICOLUMN) != 0) {
 			int currentIndentation = this.scribe.getNextIndentationLevel(this.scribe.column+(this.scribe.needSpace ? 1 : 0));
 			int fragmentIndentation = this.fragmentIndentations[this.fragmentIndex];
 			if (currentIndentation > fragmentIndentation) {
 				this.fragmentIndentations[this.fragmentIndex] =  currentIndentation;
 				if (fragmentIndentation != 0) {
 					for (int i = this.fragmentIndex+1; i < this.fragmentCount; i++) {
 						this.fragmentIndentations[i] = 0;
 					}
 					this.needRedoColumnAlignment = true;
 				}
 			}
 			// backtrack only once all fragments got checked
 			if (this.needRedoColumnAlignment && this.fragmentIndex == this.fragmentCount-1) { // alignment too small

 //				if (CodeFormatterVisitor.DEBUG){
 //					System.out.println("ALIGNMENT TOO SMALL");
 //					System.out.println(this);
 //				}
 				this.needRedoColumnAlignment = false;
 				int relativeDepth = 0;
 				Alignment targetAlignment = this.scribe.memberAlignment;
 				while (targetAlignment != null){
 					if (targetAlignment == this){
 						throw new AlignmentException(AlignmentException.ALIGN_TOO_SMALL, relativeDepth);
 					}
 					targetAlignment = targetAlignment.enclosing;
 					relativeDepth++;
 				}
 			}
 		}
 	}

 	public boolean couldBreak(){
 		int i;
 		switch(mode & SPLIT_MASK){

 			/*  # aligned fragment
 			 *  foo(
 			 *     #AAAAA, #BBBBB,
 			 *     #CCCC);
 			 */
 			case M_COMPACT_FIRST_BREAK_SPLIT :
 				if (this.fragmentBreaks[0] == NONE) {
 					this.fragmentBreaks[0] = BREAK;
 					this.fragmentIndentations[0] = this.breakIndentationLevel;
 					return wasSplit = true;
 				}
 				i = this.fragmentIndex;
 				do {
 					if (this.fragmentBreaks[i] == NONE) {
 						this.fragmentBreaks[i] = BREAK;
 						this.fragmentIndentations[i] = this.breakIndentationLevel;
 						return wasSplit = true;
 					}
 				} while (--i >= 0);
 				break;
 			/*  # aligned fragment
 			 *  foo(#AAAAA, #BBBBB,
 			 *     #CCCC);
 			 */
 			case M_COMPACT_SPLIT :
 				i = this.fragmentIndex;
 				do {
 					if (this.fragmentBreaks[i] == NONE) {
 						this.fragmentBreaks[i] = BREAK;
 						this.fragmentIndentations[i] = this.breakIndentationLevel;
 						return wasSplit = true;
 					}
 				} while (--i >= 0);
 				break;

 			/*  # aligned fragment
 			 *  foo(
 			 *      #AAAAA,
 			 *          #BBBBB,
 			 *          #CCCC);
 			 */
 			case M_NEXT_SHIFTED_SPLIT :
 				if (this.fragmentBreaks[0] == NONE) {
 					this.fragmentBreaks[0] = BREAK;
 					this.fragmentIndentations[0] = this.breakIndentationLevel;
 					for (i = 1; i < this.fragmentCount; i++){
 						this.fragmentBreaks[i] = BREAK;
 						this.fragmentIndentations[i] = this.shiftBreakIndentationLevel;
 					}
 					return wasSplit = true;
 				}
 				break;

 			/*  # aligned fragment
 			 *  foo(
 			 *      #AAAAA,
 			 *      #BBBBB,
 			 *      #CCCC);
 			 */
 			case M_ONE_PER_LINE_SPLIT :
 				if (this.fragmentBreaks[0] == NONE) {
 					for (i = 0; i < this.fragmentCount; i++){
 						this.fragmentBreaks[i] = BREAK;
 						this.fragmentIndentations[i] = this.breakIndentationLevel;
 					}
 					return wasSplit = true;
 				}
 			/*  # aligned fragment
 			 *  foo(#AAAAA,
 			 *      #BBBBB,
 			 *      #CCCC);
 			 */
 			case M_NEXT_PER_LINE_SPLIT :
 				if (this.fragmentBreaks[0] == NONE) {
 					if (this.fragmentCount > 1
 							&& this.fragmentBreaks[1] == NONE) {
 						if ((this.mode & M_INDENT_ON_COLUMN) != 0) {
 							this.fragmentIndentations[0] = this.breakIndentationLevel;
 						}
 						for (i = 1; i < this.fragmentCount; i++) {
 							this.fragmentBreaks[i] = BREAK;
 							this.fragmentIndentations[i] = this.breakIndentationLevel;
 						}
 						return wasSplit = true;
 					}
 				}
 				break;
 		}
 		return false; // cannot split better
 	}

 	public Alignment getAlignment(String targetName) {

 		if (targetName.equals(this.name)) return this;
 		if (this.enclosing == null) return null;

 		return this.enclosing.getAlignment(targetName);
 	}

 	// perform alignment effect for current fragment
 	public void performFragmentEffect(){
 		if ((this.mode & M_MULTICOLUMN) == 0) {
 			switch(this.mode & SPLIT_MASK) {
 				case Alignment.M_COMPACT_SPLIT :
 				case Alignment.M_COMPACT_FIRST_BREAK_SPLIT :
 				case Alignment.M_NEXT_PER_LINE_SPLIT :
 				case Alignment.M_NEXT_SHIFTED_SPLIT :
 				case Alignment.M_ONE_PER_LINE_SPLIT :
 					break;
 				default:
 					return;
 			}
 		}

 		if (this.fragmentBreaks[this.fragmentIndex] == BREAK) {
 			this.scribe.printNewLine();
 		}
 		if (this.fragmentIndentations[this.fragmentIndex] > 0) {
 			this.scribe.indentationLevel = this.fragmentIndentations[this.fragmentIndex];
 		}
 	}

 	// reset fragment indentation/break status
 	public void reset() {

 		if (fragmentCount > 0){
 			this.fragmentIndentations = new int[this.fragmentCount];
 			this.fragmentBreaks = new int[this.fragmentCount];
 		}

 		// check for forced alignments
 		if ((mode & M_FORCE) != 0) {
 			couldBreak();
 		}
 	}

 	public void toFragmentsString(StringBuffer buffer){
 		// default implementation
 	}

 	public String toString() {
 		StringBuffer buffer = new StringBuffer(10);
 		buffer
 			.append(getClass().getName())
 			.append(':')
 			.append("<name: ")	//$NON-NLS-1$
 			.append(this.name)
 			.append(">");	//$NON-NLS-1$
 		if (this.enclosing != null) {
 			buffer
 				.append("<enclosingName: ")	//$NON-NLS-1$
 				.append(this.enclosing.name)
 				.append('>');
 		}
 		buffer.append('\n');

 		for (int i = 0; i < this.fragmentCount; i++){
 			buffer
 				.append(" - fragment ")	//$NON-NLS-1$
 				.append(i)
 				.append(": ")	//$NON-NLS-1$
 				.append("<break: ")	//$NON-NLS-1$
 				.append(this.fragmentBreaks[i] > 0 ? "YES" : "NO")	//$NON-NLS-1$	//$NON-NLS-2$
 				.append(">")	//$NON-NLS-1$
 				.append("<indent: ")	//$NON-NLS-1$
 				.append(this.fragmentIndentations[i])
 				.append(">\n");	//$NON-NLS-1$
 		}
 		buffer.append('\n');
 		return buffer.toString();
 	}

 	public void update() {
 		for (int i = 1; i < this.fragmentCount; i++){
 		    if (this.fragmentBreaks[i] == BREAK) {
 		        this.fragmentIndentations[i] = this.breakIndentationLevel;
 		    }
 		}
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2005 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.formatter.align;

	import org.eclipse.jdt.internal.formatter.Location;
	import org.eclipse.jdt.internal.formatter.Scribe;

	/**
	* Alignment management
	*
	* @since 2.1
	*/
	public class Alignment {

	// name of alignment
	public String name;

	// link to enclosing alignment
	public Alignment enclosing;

	// start location of this alignment
	public Location location;

	// indentation management
	public int fragmentIndex;
	public int fragmentCount;
	public int[] fragmentIndentations;
	public boolean needRedoColumnAlignment;

	// chunk management
	public int chunkStartIndex;
	public int chunkKind;

	// break management
	public int originalIndentationLevel;
	public int breakIndentationLevel;
	public int shiftBreakIndentationLevel;
	public int[] fragmentBreaks;
	public boolean wasSplit;

	public Scribe scribe;

	/*
	* Alignment modes
	*/
	public static final int M_FORCE = 1; // if bit set, then alignment will be non-optional (default is optional)
	public static final int M_INDENT_ON_COLUMN = 2; // if bit set, broken fragments will be aligned on current location column (default is to break at current indentation level)
	public static final int M_INDENT_BY_ONE = 4; // if bit set, broken fragments will be indented one level below current (not using continuation indentation)

	// split modes can be combined either with M_FORCE or M_INDENT_ON_COLUMN

	/** foobar(#fragment1, #fragment2, <ul>
	* <li> #fragment3, #fragment4 </li>
	* </ul>
	*/
	public static final int M_COMPACT_SPLIT = 16; // fill each line with all possible fragments

	/** foobar(<ul>
	* <li> #fragment1, #fragment2, </li>
	* <li> #fragment5, #fragment4, </li>
	* </ul>
	*/
	public static final int M_COMPACT_FIRST_BREAK_SPLIT = 32; // compact mode, but will first try to break before first fragment

	/** foobar(<ul>
	* <li> #fragment1, </li>
	* <li> #fragment2, </li>
	* <li> #fragment3 </li>
	* <li> #fragment4, </li>
	* </ul>
	*/
	public static final int M_ONE_PER_LINE_SPLIT = 32+16; // one fragment per line

	/**
	* foobar(<ul>
	* <li> #fragment1, </li>
	* <li> #fragment2, </li>
	* <li> #fragment3 </li>
	* <li> #fragment4, </li>
	* </ul>
	*/
	public static final int M_NEXT_SHIFTED_SPLIT = 64; // one fragment per line, subsequent are indented further

	/** foobar(#fragment1, <ul>
	* <li> #fragment2, </li>
	* <li> #fragment3 </li>
	* <li> #fragment4, </li>
	* </ul>
	*/
	public static final int M_NEXT_PER_LINE_SPLIT = 64+16; // one per line, except first fragment (if possible)

	//64+32
	//64+32+16

	// mode controlling column alignments
	/**
	* <table BORDER COLS=4 WIDTH="100%" >
	* <tr><td>#fragment1A</td> <td>#fragment2A</td> <td>#fragment3A</td> <td>#very-long-fragment4A</td></tr>
	* <tr><td>#fragment1B</td> <td>#long-fragment2B</td> <td>#fragment3B</td> <td>#fragment4B</td></tr>
	* <tr><td>#very-long-fragment1C</td> <td>#fragment2C</td> <td>#fragment3C</td> <td>#fragment4C</td></tr>
	* </table>
	*/
	public static final int M_MULTICOLUMN = 256; // fragments are on same line, but multiple line of fragments will be aligned vertically

	public static final int M_NO_ALIGNMENT = 0;

	public int mode;

	public static final int SPLIT_MASK = M_ONE_PER_LINE_SPLIT \| M_NEXT_SHIFTED_SPLIT \| M_COMPACT_SPLIT \| M_COMPACT_FIRST_BREAK_SPLIT \| M_NEXT_PER_LINE_SPLIT;

	// alignment tie-break rules - when split is needed, will decide whether innermost/outermost alignment is to be chosen
	public static final int R_OUTERMOST = 1;
	public static final int R_INNERMOST = 2;
	public int tieBreakRule;

	// alignment effects on a per fragment basis
	public static int NONE = 0;
	public static int BREAK = 1;

	// chunk kind
	public static final int CHUNK_FIELD = 1;
	public static final int CHUNK_METHOD = 2;
	public static final int CHUNK_TYPE = 3;
	public static final int CHUNK_ENUM = 4;

	// location to align and break on.
	public Alignment(String name, int mode, int tieBreakRule, Scribe scribe, int fragmentCount, int sourceRestart, int continuationIndent){

	this.name = name;
	this.location = new Location(scribe, sourceRestart);
	this.mode = mode;
	this.tieBreakRule = tieBreakRule;
	this.fragmentCount = fragmentCount;
	this.scribe = scribe;
	this.originalIndentationLevel = this.scribe.indentationLevel;
	this.wasSplit = false;

	// initialize the break indentation level, using modes and continuationIndentationLevel preference
	final int indentSize = this.scribe.indentationSize;
	int currentColumn = this.location.outputColumn;
	if (currentColumn == 1) {
	currentColumn = this.location.outputIndentationLevel + 1;
	}

	if ((mode & M_INDENT_ON_COLUMN) != 0) {
	// indent broken fragments at next indentation level, based on current column
	this.breakIndentationLevel = this.scribe.getNextIndentationLevel(currentColumn);
	if (this.breakIndentationLevel == this.location.outputIndentationLevel) {
	this.breakIndentationLevel += (continuationIndent * indentSize);
	}
	} else if ((mode & M_INDENT_BY_ONE) != 0) {
	// indent broken fragments exactly one level deeper than current indentation
	this.breakIndentationLevel = this.location.outputIndentationLevel + indentSize;
	} else {
	this.breakIndentationLevel = this.location.outputIndentationLevel + continuationIndent * indentSize;
	}
	this.shiftBreakIndentationLevel = this.breakIndentationLevel + indentSize;

	this.fragmentIndentations = new int[this.fragmentCount];
	this.fragmentBreaks = new int[this.fragmentCount];

	// check for forced alignments
	if ((this.mode & M_FORCE) != 0) {
	couldBreak();
	}
	}

	public boolean checkChunkStart(int kind, int startIndex, int sourceRestart) {
	if (this.chunkKind != kind) {
	this.chunkKind = kind;

	// when redoing same chunk alignment, must not reset
	if (startIndex != this.chunkStartIndex) {
	this.chunkStartIndex = startIndex;
	this.location.update(this.scribe, sourceRestart);
	reset();
	}
	return true;
	}
	return false;
	}

	public void checkColumn() {
	if ((this.mode & M_MULTICOLUMN) != 0) {
	int currentIndentation = this.scribe.getNextIndentationLevel(this.scribe.column+(this.scribe.needSpace ? 1 : 0));
	int fragmentIndentation = this.fragmentIndentations[this.fragmentIndex];
	if (currentIndentation > fragmentIndentation) {
	this.fragmentIndentations[this.fragmentIndex] = currentIndentation;
	if (fragmentIndentation != 0) {
	for (int i = this.fragmentIndex+1; i < this.fragmentCount; i++) {
	this.fragmentIndentations[i] = 0;
	}
	this.needRedoColumnAlignment = true;
	}
	}
	// backtrack only once all fragments got checked
	if (this.needRedoColumnAlignment && this.fragmentIndex == this.fragmentCount-1) { // alignment too small

	// if (CodeFormatterVisitor.DEBUG){
	// System.out.println("ALIGNMENT TOO SMALL");
	// System.out.println(this);
	// }
	this.needRedoColumnAlignment = false;
	int relativeDepth = 0;
	Alignment targetAlignment = this.scribe.memberAlignment;
	while (targetAlignment != null){
	if (targetAlignment == this){
	throw new AlignmentException(AlignmentException.ALIGN_TOO_SMALL, relativeDepth);
	}
	targetAlignment = targetAlignment.enclosing;
	relativeDepth++;
	}
	}
	}
	}

	public boolean couldBreak(){
	int i;
	switch(mode & SPLIT_MASK){

	/* # aligned fragment
	* foo(
	* #AAAAA, #BBBBB,
	* #CCCC);
	*/
	case M_COMPACT_FIRST_BREAK_SPLIT :
	if (this.fragmentBreaks[0] == NONE) {
	this.fragmentBreaks[0] = BREAK;
	this.fragmentIndentations[0] = this.breakIndentationLevel;
	return wasSplit = true;
	}
	i = this.fragmentIndex;
	do {
	if (this.fragmentBreaks[i] == NONE) {
	this.fragmentBreaks[i] = BREAK;
	this.fragmentIndentations[i] = this.breakIndentationLevel;
	return wasSplit = true;
	}
	} while (--i >= 0);
	break;
	/* # aligned fragment
	* foo(#AAAAA, #BBBBB,
	* #CCCC);
	*/
	case M_COMPACT_SPLIT :
	i = this.fragmentIndex;
	do {
	if (this.fragmentBreaks[i] == NONE) {
	this.fragmentBreaks[i] = BREAK;
	this.fragmentIndentations[i] = this.breakIndentationLevel;
	return wasSplit = true;
	}
	} while (--i >= 0);
	break;

	/* # aligned fragment
	* foo(
	* #AAAAA,
	* #BBBBB,
	* #CCCC);
	*/
	case M_NEXT_SHIFTED_SPLIT :
	if (this.fragmentBreaks[0] == NONE) {
	this.fragmentBreaks[0] = BREAK;
	this.fragmentIndentations[0] = this.breakIndentationLevel;
	for (i = 1; i < this.fragmentCount; i++){
	this.fragmentBreaks[i] = BREAK;
	this.fragmentIndentations[i] = this.shiftBreakIndentationLevel;
	}
	return wasSplit = true;
	}
	break;

	/* # aligned fragment
	* foo(
	* #AAAAA,
	* #BBBBB,
	* #CCCC);
	*/
	case M_ONE_PER_LINE_SPLIT :
	if (this.fragmentBreaks[0] == NONE) {
	for (i = 0; i < this.fragmentCount; i++){
	this.fragmentBreaks[i] = BREAK;
	this.fragmentIndentations[i] = this.breakIndentationLevel;
	}
	return wasSplit = true;
	}
	/* # aligned fragment
	* foo(#AAAAA,
	* #BBBBB,
	* #CCCC);
	*/
	case M_NEXT_PER_LINE_SPLIT :
	if (this.fragmentBreaks[0] == NONE) {
	if (this.fragmentCount > 1
	&& this.fragmentBreaks[1] == NONE) {
	if ((this.mode & M_INDENT_ON_COLUMN) != 0) {
	this.fragmentIndentations[0] = this.breakIndentationLevel;
	}
	for (i = 1; i < this.fragmentCount; i++) {
	this.fragmentBreaks[i] = BREAK;
	this.fragmentIndentations[i] = this.breakIndentationLevel;
	}
	return wasSplit = true;
	}
	}
	break;
	}
	return false; // cannot split better
	}

	public Alignment getAlignment(String targetName) {

	if (targetName.equals(this.name)) return this;
	if (this.enclosing == null) return null;

	return this.enclosing.getAlignment(targetName);
	}

	// perform alignment effect for current fragment
	public void performFragmentEffect(){
	if ((this.mode & M_MULTICOLUMN) == 0) {
	switch(this.mode & SPLIT_MASK) {
	case Alignment.M_COMPACT_SPLIT :
	case Alignment.M_COMPACT_FIRST_BREAK_SPLIT :
	case Alignment.M_NEXT_PER_LINE_SPLIT :
	case Alignment.M_NEXT_SHIFTED_SPLIT :
	case Alignment.M_ONE_PER_LINE_SPLIT :
	break;
	default:
	return;
	}
	}

	if (this.fragmentBreaks[this.fragmentIndex] == BREAK) {
	this.scribe.printNewLine();
	}
	if (this.fragmentIndentations[this.fragmentIndex] > 0) {
	this.scribe.indentationLevel = this.fragmentIndentations[this.fragmentIndex];
	}
	}

	// reset fragment indentation/break status
	public void reset() {

	if (fragmentCount > 0){
	this.fragmentIndentations = new int[this.fragmentCount];
	this.fragmentBreaks = new int[this.fragmentCount];
	}

	// check for forced alignments
	if ((mode & M_FORCE) != 0) {
	couldBreak();
	}
	}

	public void toFragmentsString(StringBuffer buffer){
	// default implementation
	}

	public String toString() {
	StringBuffer buffer = new StringBuffer(10);
	buffer
	.append(getClass().getName())
	.append(':')
	.append("<name: ") //$NON-NLS-1$
	.append(this.name)
	.append(">"); //$NON-NLS-1$
	if (this.enclosing != null) {
	buffer
	.append("<enclosingName: ") //$NON-NLS-1$
	.append(this.enclosing.name)
	.append('>');
	}
	buffer.append('\n');

	for (int i = 0; i < this.fragmentCount; i++){
	buffer
	.append(" - fragment ") //$NON-NLS-1$
	.append(i)
	.append(": ") //$NON-NLS-1$
	.append("<break: ") //$NON-NLS-1$
	.append(this.fragmentBreaks[i] > 0 ? "YES" : "NO") //$NON-NLS-1$ //$NON-NLS-2$
	.append(">") //$NON-NLS-1$
	.append("<indent: ") //$NON-NLS-1$
	.append(this.fragmentIndentations[i])
	.append(">\n"); //$NON-NLS-1$
	}
	buffer.append('\n');
	return buffer.toString();
	}

	public void update() {
	for (int i = 1; i < this.fragmentCount; i++){
	if (this.fragmentBreaks[i] == BREAK) {
	this.fragmentIndentations[i] = this.breakIndentationLevel;
	}
	}
	}
	}