/*******************************************************************************
* Copyright (c) 2000, 2011 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.wst.jsdt.internal.formatter;
import java.util.Arrays;
import org.eclipse.text.edits.MultiTextEdit;
import org.eclipse.text.edits.ReplaceEdit;
import org.eclipse.text.edits.TextEdit;
import org.eclipse.wst.jsdt.core.compiler.CharOperation;
import org.eclipse.wst.jsdt.core.compiler.InvalidInputException;
import org.eclipse.wst.jsdt.internal.compiler.ASTVisitor;
import org.eclipse.wst.jsdt.internal.compiler.parser.Scanner;
import org.eclipse.wst.jsdt.internal.compiler.parser.ScannerHelper;
import org.eclipse.wst.jsdt.internal.compiler.parser.TerminalTokens;
import org.eclipse.wst.jsdt.internal.compiler.util.Util;
import org.eclipse.wst.jsdt.internal.core.util.CodeSnippetParsingUtil;
import org.eclipse.wst.jsdt.internal.core.util.RecordedParsingInformation;
import org.eclipse.wst.jsdt.internal.formatter.align.Alignment;
import org.eclipse.wst.jsdt.internal.formatter.align.AlignmentException;
/**
* This class is responsible for dumping formatted source
* @since 2.1
*/
public class Scribe {
private static final int INITIAL_SIZE = 100;
private boolean checkLineWrapping;
/** one-based column */
public int column;
private int[][] commentPositions;
// Most specific alignment.
public Alignment currentAlignment;
public int currentToken;
// edits management
private OptimizedReplaceEdit[] edits;
public int editsIndex;
public CodeFormatterVisitor formatter;
public int indentationLevel;
public int lastNumberOfNewLines;
public int line;
private int[] lineEnds;
private String lineSeparator;
public Alignment memberAlignment;
public boolean needSpace = false;
public int nlsTagCounter;
public int pageWidth;
public boolean pendingSpace = false;
public Scanner scanner;
public int scannerEndPosition;
public int tabLength;
public int indentationSize;
private int textRegionEnd;
private int textRegionStart;
public int tabChar;
public int numberOfIndentations;
private boolean useTabsOnlyForLeadingIndents;
/** indent empty lines*/
private final boolean indentEmptyLines;
private final boolean formatJavadocComment;
private final boolean formatBlockComment;
Scribe(CodeFormatterVisitor formatter, long sourceLevel, int offset, int length, CodeSnippetParsingUtil codeSnippetParsingUtil) {
this.scanner = new Scanner(true, true, false/*nls*/, sourceLevel/*sourceLevel*/, null/*taskTags*/, null/*taskPriorities*/, true/*taskCaseSensitive*/);
this.formatter = formatter;
this.pageWidth = formatter.preferences.page_width;
this.tabLength = formatter.preferences.tab_size;
this.indentationLevel= 0; // initialize properly
this.numberOfIndentations = 0;
this.useTabsOnlyForLeadingIndents = formatter.preferences.use_tabs_only_for_leading_indentations;
this.indentEmptyLines = formatter.preferences.indent_empty_lines;
this.tabChar = formatter.preferences.tab_char;
if (this.tabChar == DefaultCodeFormatterOptions.MIXED) {
this.indentationSize = formatter.preferences.indentation_size;
} else {
this.indentationSize = this.tabLength;
}
this.lineSeparator = formatter.preferences.line_separator;
this.indentationLevel = formatter.preferences.initial_indentation_level * this.indentationSize;
this.textRegionStart = offset;
this.textRegionEnd = offset + length - 1;
if (codeSnippetParsingUtil != null) {
final RecordedParsingInformation information = codeSnippetParsingUtil.recordedParsingInformation;
if (information != null) {
this.lineEnds = information.lineEnds;
this.commentPositions = information.commentPositions;
}
}
this.formatBlockComment = formatter.preferences.comment_format_block_comment;
this.formatJavadocComment = formatter.preferences.comment_format_javadoc_comment;
reset();
}
private final void addDeleteEdit(int start, int end) {
if (this.edits.length == this.editsIndex) {
// resize
resize();
}
addOptimizedReplaceEdit(start, end - start + 1, Util.EMPTY_STRING);
}
public final void addInsertEdit(int insertPosition, String insertedString) {
if (this.edits.length == this.editsIndex) {
// resize
resize();
}
addOptimizedReplaceEdit(insertPosition, 0, insertedString);
}
private final void addOptimizedReplaceEdit(int offset, int length, String replacement) {
if (this.editsIndex > 0) {
// try to merge last two edits
final OptimizedReplaceEdit previous = this.edits[this.editsIndex-1];
final int previousOffset = previous.offset;
final int previousLength = previous.length;
final int endOffsetOfPreviousEdit = previousOffset + previousLength;
final int replacementLength = replacement.length();
final String previousReplacement = previous.replacement;
final int previousReplacementLength = previousReplacement.length();
if (previousOffset == offset && previousLength == length && (replacementLength == 0 || previousReplacementLength == 0)) {
if (this.currentAlignment != null) {
final Location location = this.currentAlignment.location;
if (location.editsIndex == this.editsIndex) {
location.editsIndex--;
location.textEdit = previous;
}
}
this.editsIndex--;
return;
}
if (endOffsetOfPreviousEdit == offset) {
if (length != 0) {
if (replacementLength != 0) {
this.edits[this.editsIndex - 1] = new OptimizedReplaceEdit(previousOffset, previousLength + length, previousReplacement + replacement);
} else if (previousLength + length == previousReplacementLength) {
// check the characters. If they are identical, we can get rid of the previous edit
boolean canBeRemoved = true;
loop: for (int i = previousOffset; i < previousOffset + previousReplacementLength; i++) {
if (scanner.source[i] != previousReplacement.charAt(i - previousOffset)) {
this.edits[this.editsIndex - 1] = new OptimizedReplaceEdit(previousOffset, previousReplacementLength, previousReplacement);
canBeRemoved = false;
break loop;
}
}
if (canBeRemoved) {
if (this.currentAlignment != null) {
final Location location = this.currentAlignment.location;
if (location.editsIndex == this.editsIndex) {
location.editsIndex--;
location.textEdit = previous;
}
}
this.editsIndex--;
}
} else {
this.edits[this.editsIndex - 1] = new OptimizedReplaceEdit(previousOffset, previousLength + length, previousReplacement);
}
} else {
if (replacementLength != 0) {
this.edits[this.editsIndex - 1] = new OptimizedReplaceEdit(previousOffset, previousLength, previousReplacement + replacement);
}
}
} else if ((offset + length == previousOffset) && (previousLength + length == replacementLength + previousReplacementLength)) {
// check if both edits corresponds to the orignal source code
boolean canBeRemoved = true;
String totalReplacement = replacement + previousReplacement;
loop: for (int i = 0; i < previousLength + length; i++) {
if (scanner.source[i + offset] != totalReplacement.charAt(i)) {
this.edits[this.editsIndex - 1] = new OptimizedReplaceEdit(offset, previousLength + length, totalReplacement);
canBeRemoved = false;
break loop;
}
}
if (canBeRemoved) {
if (this.currentAlignment != null) {
final Location location = this.currentAlignment.location;
if (location.editsIndex == this.editsIndex) {
location.editsIndex--;
location.textEdit = previous;
}
}
this.editsIndex--;
}
} else {
this.edits[this.editsIndex++] = new OptimizedReplaceEdit(offset, length, replacement);
}
} else {
this.edits[this.editsIndex++] = new OptimizedReplaceEdit(offset, length, replacement);
}
}
public final void addReplaceEdit(int start, int end, String replacement) {
if (this.edits.length == this.editsIndex) {
// resize
resize();
}
addOptimizedReplaceEdit(start, end - start + 1, replacement);
}
public void alignFragment(Alignment alignment, int fragmentIndex){
alignment.fragmentIndex = fragmentIndex;
alignment.checkColumn();
alignment.performFragmentEffect();
}
public void checkNLSTag(int sourceStart) {
if (hasNLSTag(sourceStart)) {
this.nlsTagCounter++;
}
}
public void consumeNextToken() {
printComment();
try {
this.currentToken = this.scanner.getNextToken();
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
public Alignment createAlignment(String name, int mode, int count, int sourceRestart){
return createAlignment(name, mode, Alignment.R_INNERMOST, count, sourceRestart);
}
public Alignment createAlignment(String name, int mode, int count, int sourceRestart, boolean adjust){
return createAlignment(name, mode, Alignment.R_INNERMOST, count, sourceRestart, adjust);
}
public Alignment createAlignment(String name, int mode, int tieBreakRule, int count, int sourceRestart){
return createAlignment(name, mode, tieBreakRule, count, sourceRestart, this.formatter.preferences.continuation_indentation, false);
}
public Alignment createAlignment(String name, int mode, int count, int sourceRestart, int continuationIndent, boolean adjust){
return createAlignment(name, mode, Alignment.R_INNERMOST, count, sourceRestart, continuationIndent, adjust);
}
public Alignment createAlignment(String name, int mode, int tieBreakRule, int count, int sourceRestart, int continuationIndent, boolean adjust){
Alignment alignment = new Alignment(name, mode, tieBreakRule, this, count, sourceRestart, continuationIndent);
// adjust break indentation
if (adjust && this.memberAlignment != null) {
Alignment current = this.memberAlignment;
while (current.enclosing != null) {
current = current.enclosing;
}
if ((current.mode & Alignment.M_MULTICOLUMN) != 0) {
final int indentSize = this.indentationSize;
switch(current.chunkKind) {
case Alignment.CHUNK_METHOD :
case Alignment.CHUNK_TYPE :
if ((mode & Alignment.M_INDENT_BY_ONE) != 0) {
alignment.breakIndentationLevel = this.indentationLevel + indentSize;
} else {
alignment.breakIndentationLevel = this.indentationLevel + continuationIndent * indentSize;
}
alignment.update();
break;
case Alignment.CHUNK_FIELD :
if ((mode & Alignment.M_INDENT_BY_ONE) != 0) {
alignment.breakIndentationLevel = current.originalIndentationLevel + indentSize;
} else {
alignment.breakIndentationLevel = current.originalIndentationLevel + continuationIndent * indentSize;
}
alignment.update();
break;
}
} else {
switch(current.mode & Alignment.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 :
final int indentSize = this.indentationSize;
switch(current.chunkKind) {
case Alignment.CHUNK_METHOD :
case Alignment.CHUNK_TYPE :
if ((mode & Alignment.M_INDENT_BY_ONE) != 0) {
alignment.breakIndentationLevel = this.indentationLevel + indentSize;
} else {
alignment.breakIndentationLevel = this.indentationLevel + continuationIndent * indentSize;
}
alignment.update();
break;
case Alignment.CHUNK_FIELD :
if ((mode & Alignment.M_INDENT_BY_ONE) != 0) {
alignment.breakIndentationLevel = current.originalIndentationLevel + indentSize;
} else {
alignment.breakIndentationLevel = current.originalIndentationLevel + continuationIndent * indentSize;
}
alignment.update();
break;
}
break;
}
}
}
return alignment;
}
public Alignment createMemberAlignment(String name, int mode, int count, int sourceRestart) {
Alignment mAlignment = createAlignment(name, mode, Alignment.R_INNERMOST, count, sourceRestart);
mAlignment.breakIndentationLevel = this.indentationLevel;
return mAlignment;
}
public void enterAlignment(Alignment alignment){
alignment.enclosing = this.currentAlignment;
alignment.location.lastLocalDeclarationSourceStart = this.formatter.lastLocalDeclarationSourceStart;
this.currentAlignment = alignment;
}
public void enterMemberAlignment(Alignment alignment) {
alignment.enclosing = this.memberAlignment;
alignment.location.lastLocalDeclarationSourceStart = this.formatter.lastLocalDeclarationSourceStart;
this.memberAlignment = alignment;
}
public void exitAlignment(Alignment alignment, boolean discardAlignment){
Alignment current = this.currentAlignment;
while (current != null){
if (current == alignment) break;
current = current.enclosing;
}
if (current == null) {
throw new AbortFormatting("could not find matching alignment: "+alignment); //$NON-NLS-1$
}
this.indentationLevel = alignment.location.outputIndentationLevel;
this.numberOfIndentations = alignment.location.numberOfIndentations;
this.formatter.lastLocalDeclarationSourceStart = alignment.location.lastLocalDeclarationSourceStart;
if (discardAlignment){
this.currentAlignment = alignment.enclosing;
}
}
public void exitMemberAlignment(Alignment alignment){
Alignment current = this.memberAlignment;
while (current != null){
if (current == alignment) break;
current = current.enclosing;
}
if (current == null) {
throw new AbortFormatting("could not find matching alignment: "+alignment); //$NON-NLS-1$
}
this.indentationLevel = current.location.outputIndentationLevel;
this.numberOfIndentations = current.location.numberOfIndentations;
this.formatter.lastLocalDeclarationSourceStart = alignment.location.lastLocalDeclarationSourceStart;
this.memberAlignment = current.enclosing;
}
public Alignment getAlignment(String name){
if (this.currentAlignment != null) {
return this.currentAlignment.getAlignment(name);
}
return null;
}
/**
* Answer actual indentation level based on true column position
* @return int
*/
public int getColumnIndentationLevel() {
return this.column - 1;
}
public final int getCommentIndex(int position) {
if (this.commentPositions == null)
return -1;
int length = this.commentPositions.length;
if (length == 0) {
return -1;
}
int g = 0, d = length - 1;
int m = 0;
while (g <= d) {
m = g + (d - g) / 2;
int bound = this.commentPositions[m][1];
if (bound < 0) {
bound = -bound;
}
if (bound < position) {
g = m + 1;
} else if (bound > position) {
d = m - 1;
} else {
return m;
}
}
return -(g + 1);
}
private int getCurrentCommentOffset(int start) {
int linePtr = -Arrays.binarySearch(this.lineEnds, start);
int offset = 0;
int beginningOfLine = this.getLineEnd(linePtr - 1);
if (beginningOfLine == -1) {
beginningOfLine = 0;
}
int currentStartPosition = start;
char[] source = scanner.source;
// find the position of the beginning of the line containing the comment
while (beginningOfLine > currentStartPosition) {
if (linePtr > 0) {
beginningOfLine = this.getLineEnd(--linePtr);
} else {
beginningOfLine = 0;
break;
}
}
for (int i = currentStartPosition - 1; i >= beginningOfLine ; i--) {
char currentCharacter = source[i];
switch (currentCharacter) {
case '\t' :
offset += this.tabLength;
break;
case ' ' :
offset++;
break;
case '\r' :
case '\n' :
break;
default:
return offset;
}
}
return offset;
}
public String getEmptyLines(int linesNumber) {
if (this.nlsTagCounter > 0) {
return Util.EMPTY_STRING;
}
StringBuffer buffer = new StringBuffer();
if (lastNumberOfNewLines == 0) {
linesNumber++; // add an extra line breaks
for (int i = 0; i < linesNumber; i++) {
if (indentEmptyLines) printIndentationIfNecessary(buffer);
buffer.append(this.lineSeparator);
}
lastNumberOfNewLines += linesNumber;
line += linesNumber;
column = 1;
needSpace = false;
this.pendingSpace = false;
} else if (lastNumberOfNewLines == 1) {
for (int i = 0; i < linesNumber; i++) {
if (indentEmptyLines) printIndentationIfNecessary(buffer);
buffer.append(this.lineSeparator);
}
lastNumberOfNewLines += linesNumber;
line += linesNumber;
column = 1;
needSpace = false;
this.pendingSpace = false;
} else {
if ((lastNumberOfNewLines - 1) >= linesNumber) {
// there is no need to add new lines
return Util.EMPTY_STRING;
}
final int realNewLineNumber = linesNumber - lastNumberOfNewLines + 1;
for (int i = 0; i < realNewLineNumber; i++) {
if (indentEmptyLines) printIndentationIfNecessary(buffer);
buffer.append(this.lineSeparator);
}
lastNumberOfNewLines += realNewLineNumber;
line += realNewLineNumber;
column = 1;
needSpace = false;
this.pendingSpace = false;
}
return String.valueOf(buffer);
}
public OptimizedReplaceEdit getLastEdit() {
if (this.editsIndex > 0) {
return this.edits[this.editsIndex - 1];
}
return null;
}
public final int getLineEnd(int lineNumber) {
if (this.lineEnds == null)
return -1;
if (lineNumber >= this.lineEnds.length + 1)
return this.scannerEndPosition;
if (lineNumber <= 0)
return -1;
return this.lineEnds[lineNumber-1]; // next line start one character behind the lineEnd of the previous line
}
Alignment getMemberAlignment() {
return this.memberAlignment;
}
public String getNewLine() {
if (this.nlsTagCounter > 0) {
return Util.EMPTY_STRING;
}
if (lastNumberOfNewLines >= 1) {
column = 1; // ensure that the scribe is at the beginning of a new line
return Util.EMPTY_STRING;
}
line++;
lastNumberOfNewLines = 1;
column = 1;
needSpace = false;
this.pendingSpace = false;
return this.lineSeparator;
}
/**
* Answer next indentation level based on column estimated position
* (if column is not indented, then use indentationLevel)
*/
public int getNextIndentationLevel(int someColumn) {
int indent = someColumn - 1;
if (indent == 0)
return this.indentationLevel;
if (this.tabChar == DefaultCodeFormatterOptions.TAB) {
if (this.useTabsOnlyForLeadingIndents) {
return indent;
}
int rem = indent % this.indentationSize;
int addition = rem == 0 ? 0 : this.indentationSize - rem; // round to superior
return indent + addition;
} else {
return indent;
}
}
private String getPreserveEmptyLines(int count) {
if (count > 0) {
if (this.formatter.preferences.number_of_empty_lines_to_preserve != 0) {
int linesToPreserve = Math.min(count, this.formatter.preferences.number_of_empty_lines_to_preserve);
return this.getEmptyLines(linesToPreserve);
} else {
return getNewLine();
}
}
return Util.EMPTY_STRING;
}
public TextEdit getRootEdit() {
MultiTextEdit edit = null;
int length = this.textRegionEnd - this.textRegionStart + 1;
if (this.textRegionStart <= 0) {
if (length <= 0) {
edit = new MultiTextEdit(0, 0);
} else {
edit = new MultiTextEdit(0, this.textRegionEnd + 1);
}
} else {
edit = new MultiTextEdit(this.textRegionStart, this.textRegionEnd - this.textRegionStart + 1);
}
for (int i= 0, max = this.editsIndex; i < max; i++) {
OptimizedReplaceEdit currentEdit = edits[i];
if (isValidEdit(currentEdit)) {
edit.addChild(new ReplaceEdit(currentEdit.offset, currentEdit.length, currentEdit.replacement));
}
}
this.edits = null;
return edit;
}
public void handleLineTooLong() {
// search for closest breakable alignment, using tiebreak rules
// look for outermost breakable one
int relativeDepth = 0, outerMostDepth = -1;
Alignment targetAlignment = this.currentAlignment;
while (targetAlignment != null){
if (targetAlignment.tieBreakRule == Alignment.R_OUTERMOST && targetAlignment.couldBreak()){
outerMostDepth = relativeDepth;
}
targetAlignment = targetAlignment.enclosing;
relativeDepth++;
}
if (outerMostDepth >= 0) {
throw new AlignmentException(AlignmentException.LINE_TOO_LONG, outerMostDepth);
}
// look for innermost breakable one
relativeDepth = 0;
targetAlignment = this.currentAlignment;
while (targetAlignment != null){
if (targetAlignment.couldBreak()){
throw new AlignmentException(AlignmentException.LINE_TOO_LONG, relativeDepth);
}
targetAlignment = targetAlignment.enclosing;
relativeDepth++;
}
// did not find any breakable location - proceed
}
/*
* Check if there is a NLS tag on this line. If yes, return true, returns false otherwise.
*/
private boolean hasNLSTag(int sourceStart) {
// search the last comment where commentEnd < current lineEnd
if (this.lineEnds == null) return false;
int index = Arrays.binarySearch(this.lineEnds, sourceStart);
int currentLineEnd = this.getLineEnd(-index);
if (currentLineEnd != -1) {
int commentIndex = getCommentIndex(currentLineEnd);
if (commentIndex < 0) {
commentIndex = -commentIndex - 2;
}
if (commentIndex >= 0 && commentIndex < this.commentPositions.length) {
int start = this.commentPositions[commentIndex][0];
if (start < 0) {
start = -start;
// check that we are on the same line
int lineIndexForComment = Arrays.binarySearch(this.lineEnds, start);
if (lineIndexForComment == index) {
return CharOperation.indexOf(Scanner.TAG_PREFIX, this.scanner.source, true, start, currentLineEnd) != -1;
}
}
}
}
return false;
}
public void indent() {
this.indentationLevel += this.indentationSize;
this.numberOfIndentations++;
}
/**
* @param compilationUnitSource
*/
public void initializeScanner(char[] compilationUnitSource) {
this.scanner.setSource(compilationUnitSource);
this.scannerEndPosition = compilationUnitSource.length;
this.scanner.resetTo(0, this.scannerEndPosition - 1);
this.edits = new OptimizedReplaceEdit[INITIAL_SIZE];
}
private boolean isOnFirstColumn(int start) {
if (this.lineEnds == null) return start == 0;
int index = Arrays.binarySearch(this.lineEnds, start);
// we want the line end of the previous line
int previousLineEnd = this.getLineEnd(-index - 1);
return previousLineEnd != -1 && previousLineEnd == start - 1;
}
private boolean isValidEdit(OptimizedReplaceEdit edit) {
final int editLength= edit.length;
final int editReplacementLength= edit.replacement.length();
final int editOffset= edit.offset;
if (editLength != 0) {
/* if edit is completely inside selected range
* else if edit is spanning the beginning of the selected range
*/
if (this.textRegionStart <= editOffset && (editOffset + editLength - 1) <= this.textRegionEnd) {
if (editReplacementLength != 0 && editLength == editReplacementLength) {
for (int i = editOffset, max = editOffset + editLength; i < max; i++) {
if (scanner.source[i] != edit.replacement.charAt(i - editOffset)) {
return true;
}
}
return false;
} else {
return true;
}
} else if (editOffset <= this.textRegionStart && editOffset + editLength >= this.textRegionStart) {
int i = editOffset;
for (int max = editOffset + editLength; i < max; i++) {
int replacementStringIndex = i - editOffset;
if (replacementStringIndex >= editReplacementLength || scanner.source[i] != edit.replacement.charAt(replacementStringIndex)) {
break;
}
}
if (i - editOffset != editReplacementLength && i != editOffset + editLength - 1) {
edit.offset = textRegionStart;
edit.length = 0;
edit.replacement = edit.replacement.substring(i - editOffset);
return true;
}
}
} else if (this.textRegionStart <= editOffset && editOffset <= this.textRegionEnd) {
return true;
} else if (editOffset == this.scannerEndPosition && editOffset == this.textRegionEnd + 1) {
return true;
}
return false;
}
private void preserveEmptyLines(int count, int insertPosition) {
if (count > 0) {
if (this.formatter.preferences.number_of_empty_lines_to_preserve != 0) {
int linesToPreserve = Math.min(count, this.formatter.preferences.number_of_empty_lines_to_preserve);
this.printEmptyLines(linesToPreserve, insertPosition);
} else {
printNewLine(insertPosition);
}
}
}
private void print(char[] s, boolean considerSpaceIfAny) {
if (checkLineWrapping && s.length + column > this.pageWidth) {
handleLineTooLong();
}
this.lastNumberOfNewLines = 0;
if (this.indentationLevel != 0) {
printIndentationIfNecessary();
}
if (considerSpaceIfAny) {
this.space();
}
if (this.pendingSpace) {
this.addInsertEdit(this.scanner.getCurrentTokenStartPosition(), " "); //$NON-NLS-1$
}
this.pendingSpace = false;
this.needSpace = false;
column += s.length;
needSpace = true;
}
private void printBlockComment(char[] s, boolean isJavadoc) {
int currentTokenStartPosition = this.scanner.getCurrentTokenStartPosition();
int currentTokenEndPosition = this.scanner.getCurrentTokenEndPosition() + 1;
this.scanner.resetTo(currentTokenStartPosition, currentTokenEndPosition - 1);
int currentCharacter;
boolean isNewLine = false;
int start = currentTokenStartPosition;
int nextCharacterStart = currentTokenStartPosition;
int previousStart = currentTokenStartPosition;
boolean onFirstColumn = isOnFirstColumn(start);
boolean indentComment = false;
if (this.indentationLevel != 0) {
if (isJavadoc
|| !this.formatter.preferences.never_indent_block_comments_on_first_column
|| !onFirstColumn) {
indentComment = true;
printIndentationIfNecessary();
}
}
if (this.pendingSpace) {
this.addInsertEdit(currentTokenStartPosition, " "); //$NON-NLS-1$
}
this.needSpace = false;
this.pendingSpace = false;
int currentCommentOffset = onFirstColumn ? 0 : getCurrentCommentOffset(start);
boolean formatComment = (isJavadoc && formatJavadocComment) || (!isJavadoc && formatBlockComment);
while (nextCharacterStart <= currentTokenEndPosition && (currentCharacter = this.scanner.getNextChar()) != -1) {
nextCharacterStart = this.scanner.currentPosition;
switch(currentCharacter) {
case '\r' :
start = previousStart;
isNewLine = true;
if (this.scanner.getNextChar('\n')) {
currentCharacter = '\n';
nextCharacterStart = this.scanner.currentPosition;
}
break;
case '\n' :
start = previousStart;
isNewLine = true;
nextCharacterStart = this.scanner.currentPosition;
break;
default:
if (isNewLine) {
this.column = 1;
this.line++;
isNewLine = false;
StringBuffer buffer = new StringBuffer();
if (onFirstColumn) {
// simply insert indentation if necessary
buffer.append(this.lineSeparator);
if (indentComment) {
printIndentationIfNecessary(buffer);
}
if (formatComment) {
if (ScannerHelper.isWhitespace((char) currentCharacter)) {
int previousStartPosition = this.scanner.currentPosition;
while(currentCharacter != -1 && currentCharacter != '\r' && currentCharacter != '\n' && ScannerHelper.isWhitespace((char) currentCharacter)) {
previousStart = nextCharacterStart;
previousStartPosition = this.scanner.currentPosition;
currentCharacter = this.scanner.getNextChar();
nextCharacterStart = this.scanner.currentPosition;
}
if (currentCharacter == '\r' || currentCharacter == '\n') {
nextCharacterStart = previousStartPosition;
}
}
if (currentCharacter != '\r' && currentCharacter != '\n') {
buffer.append(' ');
}
}
} else {
if (ScannerHelper.isWhitespace((char) currentCharacter)) {
int previousStartPosition = this.scanner.currentPosition;
int count = 0;
loop: while(currentCharacter != -1 && currentCharacter != '\r' && currentCharacter != '\n' && ScannerHelper.isWhitespace((char) currentCharacter)) {
if (count >= currentCommentOffset) {
break loop;
}
previousStart = nextCharacterStart;
previousStartPosition = this.scanner.currentPosition;
switch(currentCharacter) {
case '\t' :
count += this.tabLength;
break;
default :
count ++;
}
currentCharacter = this.scanner.getNextChar();
nextCharacterStart = this.scanner.currentPosition;
}
if (currentCharacter == '\r' || currentCharacter == '\n') {
nextCharacterStart = previousStartPosition;
}
}
buffer.append(this.lineSeparator);
if (indentComment) {
printIndentationIfNecessary(buffer);
}
if (formatComment) {
int previousStartTemp = previousStart;
int nextCharacterStartTemp = nextCharacterStart;
while(currentCharacter != -1 && currentCharacter != '\r' && currentCharacter != '\n' && ScannerHelper.isWhitespace((char) currentCharacter)) {
previousStart = nextCharacterStart;
currentCharacter = this.scanner.getNextChar();
nextCharacterStart = this.scanner.currentPosition;
}
if (currentCharacter == '*') {
buffer.append(' ');
} else {
previousStart = previousStartTemp;
nextCharacterStart = nextCharacterStartTemp;
}
this.scanner.currentPosition = nextCharacterStart;
}
}
addReplaceEdit(start, previousStart - 1, String.valueOf(buffer));
} else {
this.column += (nextCharacterStart - previousStart);
}
}
previousStart = nextCharacterStart;
this.scanner.currentPosition = nextCharacterStart;
}
this.lastNumberOfNewLines = 0;
needSpace = false;
this.scanner.resetTo(currentTokenEndPosition, this.scannerEndPosition - 1);
if (isJavadoc) {
printNewLine();
}
}
public void printEndOfCompilationUnit() {
try {
// if we have a space between two tokens we ensure it will be dumped in the formatted string
int currentTokenStartPosition = this.scanner.currentPosition;
boolean hasComment = false;
boolean hasLineComment = false;
boolean hasWhitespace = false;
int count = 0;
while (true) {
this.currentToken = this.scanner.getNextToken();
switch(this.currentToken) {
case TerminalTokens.TokenNameWHITESPACE :
char[] whiteSpaces = this.scanner.getCurrentTokenSource();
count = 0;
for (int i = 0, max = whiteSpaces.length; i < max; i++) {
switch(whiteSpaces[i]) {
case '\r' :
if ((i + 1) < max) {
if (whiteSpaces[i + 1] == '\n') {
i++;
}
}
count++;
break;
case '\n' :
count++;
}
}
if (count == 0) {
hasWhitespace = true;
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
} else if (hasComment) {
if (count == 1) {
this.printNewLine(this.scanner.getCurrentTokenStartPosition());
} else {
preserveEmptyLines(count - 1, this.scanner.getCurrentTokenStartPosition());
}
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
} else if (hasLineComment) {
this.preserveEmptyLines(count, this.scanner.getCurrentTokenStartPosition());
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
} else {
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
}
currentTokenStartPosition = this.scanner.currentPosition;
break;
case TerminalTokens.TokenNameCOMMENT_LINE :
if (count >= 1) {
if (count > 1) {
preserveEmptyLines(count - 1, this.scanner.getCurrentTokenStartPosition());
} else if (count == 1) {
printNewLine(this.scanner.getCurrentTokenStartPosition());
}
} else if (hasWhitespace) {
space();
}
hasWhitespace = false;
this.printLineComment(this.scanner.getRawTokenSource());
currentTokenStartPosition = this.scanner.currentPosition;
hasLineComment = true;
count = 0;
break;
case TerminalTokens.TokenNameCOMMENT_BLOCK :
if (count >= 1) {
if (count > 1) {
preserveEmptyLines(count - 1, this.scanner.getCurrentTokenStartPosition());
} else if (count == 1) {
printNewLine(this.scanner.getCurrentTokenStartPosition());
}
} else if (hasWhitespace) {
space();
}
hasWhitespace = false;
this.printBlockComment(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
hasLineComment = false;
hasComment = true;
count = 0;
break;
case TerminalTokens.TokenNameCOMMENT_JAVADOC :
if (count >= 1) {
if (count > 1) {
preserveEmptyLines(count - 1, this.scanner.getCurrentTokenStartPosition());
} else if (count == 1) {
printNewLine(this.scanner.getCurrentTokenStartPosition());
}
} else if (hasWhitespace) {
space();
}
hasWhitespace = false;
this.printBlockComment(this.scanner.getRawTokenSource(), true);
currentTokenStartPosition = this.scanner.currentPosition;
hasLineComment = false;
hasComment = true;
count = 0;
break;
case TerminalTokens.TokenNameSEMICOLON :
char[] currentTokenSource = this.scanner.getRawTokenSource();
this.print(currentTokenSource, this.formatter.preferences.insert_space_before_semicolon);
break;
case TerminalTokens.TokenNameEOF :
if (count >= 1 || this.formatter.preferences.insert_new_line_at_end_of_file_if_missing) {
this.printNewLine(this.scannerEndPosition);
}
return;
default :
// step back one token
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1);
return;
}
}
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
public void printComment() {
try {
// if we have a space between two tokens we ensure it will be dumped in the formatted string
int currentTokenStartPosition = this.scanner.currentPosition;
int previousToken=this.scanner.currentToken;
int previousNonWSToken=this.scanner.currentNonWhitespaceToken;
boolean hasComment = false;
boolean hasLineComment = false;
boolean hasWhitespace = false;
int count = 0;
while ((this.currentToken = this.scanner.getNextToken()) != TerminalTokens.TokenNameEOF) {
switch(this.currentToken) {
case TerminalTokens.TokenNameWHITESPACE :
char[] whiteSpaces = this.scanner.getCurrentTokenSource();
count = 0;
for (int i = 0, max = whiteSpaces.length; i < max; i++) {
switch(whiteSpaces[i]) {
case '\r' :
if ((i + 1) < max) {
if (whiteSpaces[i + 1] == '\n') {
i++;
}
}
count++;
break;
case '\n' :
count++;
}
}
if (count == 0) {
hasWhitespace = true;
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
} else if (hasComment) {
if (count == 1) {
this.printNewLine(this.scanner.getCurrentTokenStartPosition());
} else {
preserveEmptyLines(count - 1, this.scanner.getCurrentTokenStartPosition());
}
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
} else if (hasLineComment) {
this.preserveEmptyLines(count, this.scanner.getCurrentTokenStartPosition());
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
} else if (count != 0 && this.formatter.preferences.number_of_empty_lines_to_preserve != 0) {
addReplaceEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition(), this.getPreserveEmptyLines(count - 1));
} else {
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
}
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameCOMMENT_LINE :
if (count >= 1) {
if (count > 1) {
preserveEmptyLines(count - 1, this.scanner.getCurrentTokenStartPosition());
} else if (count == 1) {
printNewLine(this.scanner.getCurrentTokenStartPosition());
}
} else if (hasWhitespace) {
space();
}
hasWhitespace = false;
this.printLineComment(this.scanner.getRawTokenSource());
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
hasLineComment = true;
count = 0;
break;
case TerminalTokens.TokenNameCOMMENT_BLOCK :
if (count >= 1) {
if (count > 1) {
preserveEmptyLines(count - 1, this.scanner.getCurrentTokenStartPosition());
} else if (count == 1) {
printNewLine(this.scanner.getCurrentTokenStartPosition());
}
} else if (hasWhitespace) {
space();
}
hasWhitespace = false;
this.printBlockComment(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
hasLineComment = false;
hasComment = true;
count = 0;
break;
case TerminalTokens.TokenNameCOMMENT_JAVADOC :
if (count >= 1) {
if (count > 1) {
preserveEmptyLines(count - 1, this.scanner.getCurrentTokenStartPosition());
} else if (count == 1) {
printNewLine(this.scanner.getCurrentTokenStartPosition());
}
} else if (hasWhitespace) {
space();
}
hasWhitespace = false;
this.printBlockComment(this.scanner.getRawTokenSource(), true);
previousToken=this.scanner.currentToken;
currentTokenStartPosition = this.scanner.currentPosition;
hasLineComment = false;
hasComment = true;
count = 0;
break;
default :
// step back one token
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
}
}
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
private void printLineComment(char[] s) {
int currentTokenStartPosition = this.scanner.getCurrentTokenStartPosition();
int currentTokenEndPosition = this.scanner.getCurrentTokenEndPosition() + 1;
if (CharOperation.indexOf(Scanner.TAG_PREFIX, this.scanner.source, true, currentTokenStartPosition, currentTokenEndPosition) != -1) {
this.nlsTagCounter = 0;
}
this.scanner.resetTo(currentTokenStartPosition, currentTokenEndPosition - 1);
int currentCharacter;
int start = currentTokenStartPosition;
int nextCharacterStart = currentTokenStartPosition;
if (this.indentationLevel != 0) {
if (!this.formatter.preferences.never_indent_line_comments_on_first_column
|| !isOnFirstColumn(start)) {
printIndentationIfNecessary();
}
}
if (this.pendingSpace) {
this.addInsertEdit(currentTokenStartPosition, " "); //$NON-NLS-1$
}
this.needSpace = false;
this.pendingSpace = false;
int previousStart = currentTokenStartPosition;
loop: while (nextCharacterStart <= currentTokenEndPosition && (currentCharacter = this.scanner.getNextChar()) != -1) {
nextCharacterStart = this.scanner.currentPosition;
switch(currentCharacter) {
case '\r' :
start = previousStart;
break loop;
case '\n' :
start = previousStart;
break loop;
}
previousStart = nextCharacterStart;
}
if (start != currentTokenStartPosition) {
// this means that the line comment doesn't end the file
addReplaceEdit(start, currentTokenEndPosition - 1, lineSeparator);
this.line++;
this.column = 1;
this.lastNumberOfNewLines = 1;
}
this.needSpace = false;
this.pendingSpace = false;
// realign to the proper value
if (this.currentAlignment != null) {
if (this.memberAlignment != null) {
// select the last alignment
if (this.currentAlignment.location.inputOffset > this.memberAlignment.location.inputOffset) {
if (this.currentAlignment.couldBreak() && this.currentAlignment.wasSplit) {
this.currentAlignment.performFragmentEffect();
}
} else {
this.indentationLevel = Math.max(this.indentationLevel, this.memberAlignment.breakIndentationLevel);
}
}
}
this.scanner.resetTo(currentTokenEndPosition, this.scannerEndPosition - 1);
}
public void printEmptyLines(int linesNumber) {
this.printEmptyLines(linesNumber, this.scanner.getCurrentTokenEndPosition() + 1);
}
private void printEmptyLines(int linesNumber, int insertPosition) {
final String buffer = getEmptyLines(linesNumber);
if (Util.EMPTY_STRING == buffer) return;
addInsertEdit(insertPosition, buffer);
}
void printIndentationIfNecessary() {
StringBuffer buffer = new StringBuffer();
printIndentationIfNecessary(buffer);
if (buffer.length() > 0) {
addInsertEdit(this.scanner.getCurrentTokenStartPosition(), buffer.toString());
this.pendingSpace = false;
}
}
private void printIndentationIfNecessary(StringBuffer buffer) {
switch(this.tabChar) {
case DefaultCodeFormatterOptions.TAB :
boolean useTabsForLeadingIndents = this.useTabsOnlyForLeadingIndents;
int numberOfLeadingIndents = this.numberOfIndentations;
int indentationsAsTab = 0;
if (useTabsForLeadingIndents) {
while (this.column <= this.indentationLevel) {
if (indentationsAsTab < numberOfLeadingIndents) {
buffer.append('\t');
indentationsAsTab++;
int complement = this.tabLength - ((this.column - 1) % this.tabLength); // amount of space
this.column += complement;
this.needSpace = false;
} else {
buffer.append(' ');
this.column++;
this.needSpace = false;
}
}
} else {
while (this.column <= this.indentationLevel) {
buffer.append('\t');
int complement = this.tabLength - ((this.column - 1) % this.tabLength); // amount of space
this.column += complement;
this.needSpace = false;
}
}
break;
case DefaultCodeFormatterOptions.SPACE :
while (this.column <= this.indentationLevel) {
buffer.append(' ');
this.column++;
this.needSpace = false;
}
break;
case DefaultCodeFormatterOptions.MIXED :
useTabsForLeadingIndents = this.useTabsOnlyForLeadingIndents;
numberOfLeadingIndents = this.numberOfIndentations;
indentationsAsTab = 0;
if (useTabsForLeadingIndents) {
final int columnForLeadingIndents = numberOfLeadingIndents * this.indentationSize;
while (this.column <= this.indentationLevel) {
if (this.column <= columnForLeadingIndents) {
if ((this.column - 1 + this.tabLength) <= this.indentationLevel) {
buffer.append('\t');
this.column += this.tabLength;
} else if ((this.column - 1 + this.indentationSize) <= this.indentationLevel) {
// print one indentation
for (int i = 0, max = this.indentationSize; i < max; i++) {
buffer.append(' ');
this.column++;
}
} else {
buffer.append(' ');
this.column++;
}
} else {
for (int i = this.column, max = this.indentationLevel; i <= max; i++) {
buffer.append(' ');
this.column++;
}
}
this.needSpace = false;
}
} else {
while (this.column <= this.indentationLevel) {
if ((this.column - 1 + this.tabLength) <= this.indentationLevel) {
buffer.append('\t');
this.column += this.tabLength;
} else if ((this.column - 1 + this.indentationSize) <= this.indentationLevel) {
// print one indentation
for (int i = 0, max = this.indentationSize; i < max; i++) {
buffer.append(' ');
this.column++;
}
} else {
buffer.append(' ');
this.column++;
}
this.needSpace = false;
}
}
break;
}
}
public void printModifiers(ASTVisitor visitor) {
try {
boolean isFirstModifier = true;
int currentTokenStartPosition = this.scanner.currentPosition;
int previousToken=this.scanner.currentToken;
int previousNonWSToken=this.scanner.currentNonWhitespaceToken;
boolean hasComment = false;
boolean hasModifiers = false;
while ((this.currentToken = this.scanner.getNextToken()) != TerminalTokens.TokenNameEOF) {
switch(this.currentToken) {
case TerminalTokens.TokenNamepublic :
case TerminalTokens.TokenNameprotected :
case TerminalTokens.TokenNameprivate :
case TerminalTokens.TokenNamestatic :
case TerminalTokens.TokenNameabstract :
case TerminalTokens.TokenNamefinal :
case TerminalTokens.TokenNamenative :
case TerminalTokens.TokenNamesynchronized :
case TerminalTokens.TokenNametransient :
case TerminalTokens.TokenNamevolatile :
hasModifiers = true;
this.print(this.scanner.getRawTokenSource(), !isFirstModifier);
isFirstModifier = false;
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=previousNonWSToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameCOMMENT_BLOCK :
this.printBlockComment(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
hasComment = true;
break;
case TerminalTokens.TokenNameCOMMENT_JAVADOC :
this.printBlockComment(this.scanner.getRawTokenSource(), true);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
hasComment = true;
break;
case TerminalTokens.TokenNameCOMMENT_LINE :
this.printLineComment(this.scanner.getRawTokenSource());
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameWHITESPACE :
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
int count = 0;
char[] whiteSpaces = this.scanner.getCurrentTokenSource();
for (int i = 0, max = whiteSpaces.length; i < max; i++) {
switch(whiteSpaces[i]) {
case '\r' :
if ((i + 1) < max) {
if (whiteSpaces[i + 1] == '\n') {
i++;
}
}
count++;
break;
case '\n' :
count++;
}
}
if (count >= 1 && hasComment) {
printNewLine();
}
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
hasComment = false;
break;
default:
if (hasModifiers) {
this.space();
}
// step back one token
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
}
}
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
public void printNewLine() {
if (this.nlsTagCounter > 0) {
return;
}
if (lastNumberOfNewLines >= 1) {
column = 1; // ensure that the scribe is at the beginning of a new line
return;
}
addInsertEdit(this.scanner.getCurrentTokenEndPosition() + 1, this.lineSeparator);
line++;
lastNumberOfNewLines = 1;
column = 1;
needSpace = false;
this.pendingSpace = false;
}
public void printNewLine(int insertPosition) {
if (this.nlsTagCounter > 0) {
return;
}
if (lastNumberOfNewLines >= 1) {
column = 1; // ensure that the scribe is at the beginning of a new line
return;
}
addInsertEdit(insertPosition, this.lineSeparator);
line++;
lastNumberOfNewLines = 1;
column = 1;
needSpace = false;
this.pendingSpace = false;
}
public void printNextToken(int expectedTokenType){
printNextToken(expectedTokenType, false);
}
public void printNextToken(int expectedTokenType, boolean considerSpaceIfAny){
printComment();
try {
this.currentToken = this.scanner.getNextToken();
if (expectedTokenType != this.currentToken) {
throw new AbortFormatting("unexpected token type, expecting:"+expectedTokenType+", actual:"+this.currentToken);//$NON-NLS-1$//$NON-NLS-2$
}
char[] currentTokenSource = this.scanner.getRawTokenSource();
this.print(currentTokenSource, considerSpaceIfAny);
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
public void printNextToken(int[] expectedTokenTypes) {
printNextToken(expectedTokenTypes, false);
}
public void printNextToken(int[] expectedTokenTypes, boolean considerSpaceIfAny){
printComment();
try {
this.currentToken = this.scanner.getNextToken();
char[] currentTokenSource = this.scanner.getRawTokenSource();
if (Arrays.binarySearch(expectedTokenTypes, this.currentToken) < 0) {
StringBuffer expectations = new StringBuffer(5);
for (int i = 0; i < expectedTokenTypes.length; i++){
if (i > 0) {
expectations.append(',');
}
expectations.append(expectedTokenTypes[i]);
}
throw new AbortFormatting("unexpected token type, expecting:["+expectations.toString()+"], actual:"+this.currentToken);//$NON-NLS-1$//$NON-NLS-2$
}
this.print(currentTokenSource, considerSpaceIfAny);
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
public void printOptionalNextToken(int expectedTokenType, boolean considerSpaceIfAny){
printComment();
try {
int tokenStart=this.scanner.currentPosition;
if (this.scanner.atEnd())
return;
this.currentToken = this.scanner.getNextToken();
char[] currentTokenSource = this.scanner.getRawTokenSource();
if (expectedTokenType != this.currentToken) {
this.scanner.resetTo(tokenStart, this.scannerEndPosition - 1);
}
else
this.print(currentTokenSource, considerSpaceIfAny);
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
public void printArrayQualifiedReference(int numberOfTokens, int sourceEnd) {
int currentTokenStartPosition = this.scanner.currentPosition;
int previousToken=this.scanner.currentToken;
int previousNonWSToken=this.scanner.currentNonWhitespaceToken;
int numberOfIdentifiers = 0;
try {
do {
this.printComment();
switch(this.currentToken = this.scanner.getNextToken()) {
case TerminalTokens.TokenNameEOF :
return;
case TerminalTokens.TokenNameWHITESPACE :
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameCOMMENT_BLOCK :
case TerminalTokens.TokenNameCOMMENT_JAVADOC :
this.printBlockComment(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameCOMMENT_LINE :
this.printLineComment(this.scanner.getRawTokenSource());
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameIdentifier :
this.print(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=previousNonWSToken=this.scanner.currentToken;
if (++ numberOfIdentifiers == numberOfTokens) {
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1);
return;
}
break;
case TerminalTokens.TokenNameDOT :
this.print(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=previousNonWSToken=this.scanner.currentToken;
break;
default:
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
}
} while (this.scanner.currentPosition <= sourceEnd);
} catch(InvalidInputException e) {
throw new AbortFormatting(e);
}
}
public void printQualifiedReference(int sourceEnd) {
int currentTokenStartPosition = this.scanner.currentPosition;
int previousToken=this.scanner.currentToken;
int previousNonWSToken=this.scanner.currentNonWhitespaceToken;
try {
do {
this.printComment();
switch(this.currentToken = this.scanner.getNextToken()) {
case TerminalTokens.TokenNameEOF :
return;
case TerminalTokens.TokenNameWHITESPACE :
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameCOMMENT_BLOCK :
case TerminalTokens.TokenNameCOMMENT_JAVADOC :
this.printBlockComment(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameCOMMENT_LINE :
this.printLineComment(this.scanner.getRawTokenSource());
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
case TerminalTokens.TokenNameIdentifier :
case TerminalTokens.TokenNameDOT :
this.print(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=previousNonWSToken=this.scanner.currentToken;
break;
default:
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
}
} while (this.scanner.currentPosition <= sourceEnd);
} catch(InvalidInputException e) {
throw new AbortFormatting(e);
}
}
private void printRule(StringBuffer stringBuffer) {
for (int i = 0; i < this.pageWidth; i++){
if ((i % this.tabLength) == 0) {
stringBuffer.append('+');
} else {
stringBuffer.append('-');
}
}
stringBuffer.append(this.lineSeparator);
for (int i = 0; i < (pageWidth / tabLength); i++) {
stringBuffer.append(i);
stringBuffer.append('\t');
}
}
public void printTrailingComment(int numberOfNewLinesToInsert) {
try {
// if we have a space between two tokens we ensure it will be dumped in the formatted string
int currentTokenStartPosition = this.scanner.currentPosition;
int previousToken=this.scanner.currentToken;
int previousNonWSToken=this.scanner.currentNonWhitespaceToken;
boolean hasWhitespaces = false;
boolean hasLineComment = false;
while ((this.currentToken = this.scanner.getNextToken()) != TerminalTokens.TokenNameEOF) {
switch(this.currentToken) {
case TerminalTokens.TokenNameWHITESPACE :
int count = 0;
char[] whiteSpaces = this.scanner.getCurrentTokenSource();
for (int i = 0, max = whiteSpaces.length; i < max; i++) {
switch(whiteSpaces[i]) {
case '\r' :
if ((i + 1) < max) {
if (whiteSpaces[i + 1] == '\n') {
i++;
}
}
count++;
break;
case '\n' :
count++;
}
}
if (hasLineComment) {
if (count >= 1) {
currentTokenStartPosition = this.scanner.getCurrentTokenStartPosition();
this.preserveEmptyLines(numberOfNewLinesToInsert, currentTokenStartPosition);
addDeleteEdit(currentTokenStartPosition, this.scanner.getCurrentTokenEndPosition());
this.scanner.resetTo(this.scanner.currentPosition, this.scannerEndPosition - 1);
return;
} else {
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
}
} else if (count > 1) {
this.printEmptyLines(numberOfNewLinesToInsert, this.scanner.getCurrentTokenStartPosition());
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
} else {
hasWhitespaces = true;
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
}
break;
case TerminalTokens.TokenNameCOMMENT_LINE :
if (hasWhitespaces) {
space();
}
this.printLineComment(this.scanner.getRawTokenSource());
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
hasLineComment = true;
break;
case TerminalTokens.TokenNameCOMMENT_BLOCK :
if (hasWhitespaces) {
space();
}
this.printBlockComment(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
break;
default :
// step back one token
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
}
}
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
public void printTrailingComment() {
try {
// if we have a space between two tokens we ensure it will be dumped in the formatted string
int currentTokenStartPosition = this.scanner.currentPosition;
int previousToken=this.scanner.currentToken;
int previousNonWSToken=this.scanner.currentNonWhitespaceToken;
boolean hasWhitespaces = false;
boolean hasComment = false;
boolean hasLineComment = false;
while ((this.currentToken = this.scanner.getNextToken()) != TerminalTokens.TokenNameEOF) {
switch(this.currentToken) {
case TerminalTokens.TokenNameWHITESPACE :
int count = 0;
char[] whiteSpaces = this.scanner.getCurrentTokenSource();
for (int i = 0, max = whiteSpaces.length; i < max; i++) {
switch(whiteSpaces[i]) {
case '\r' :
if ((i + 1) < max) {
if (whiteSpaces[i + 1] == '\n') {
i++;
}
}
count++;
break;
case '\n' :
count++;
}
}
if (hasLineComment) {
if (count >= 1) {
currentTokenStartPosition = this.scanner.getCurrentTokenStartPosition();
this.preserveEmptyLines(count, currentTokenStartPosition);
addDeleteEdit(currentTokenStartPosition, this.scanner.getCurrentTokenEndPosition());
this.scanner.resetTo(this.scanner.currentPosition, this.scannerEndPosition - 1);
return;
} else {
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
}
} else if (count >= 1) {
if (hasComment) {
this.printNewLine(this.scanner.getCurrentTokenStartPosition());
}
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
} else {
hasWhitespaces = true;
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
addDeleteEdit(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
}
break;
case TerminalTokens.TokenNameCOMMENT_LINE :
if (hasWhitespaces) {
space();
}
this.printLineComment(this.scanner.getRawTokenSource());
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
hasLineComment = true;
break;
case TerminalTokens.TokenNameCOMMENT_BLOCK :
if (hasWhitespaces) {
space();
}
this.printBlockComment(this.scanner.getRawTokenSource(), false);
currentTokenStartPosition = this.scanner.currentPosition;
previousToken=this.scanner.currentToken;
hasComment = true;
break;
default :
// step back one token
this.scanner.resetTo(currentTokenStartPosition, this.scannerEndPosition - 1,previousToken,previousNonWSToken);
return;
}
}
} catch (InvalidInputException e) {
throw new AbortFormatting(e);
}
}
void redoAlignment(AlignmentException e){
if (e.relativeDepth > 0) { // if exception targets a distinct context
e.relativeDepth--; // record fact that current context got traversed
this.currentAlignment = this.currentAlignment.enclosing; // pop currentLocation
throw e; // rethrow
}
// reset scribe/scanner to restart at this given location
this.resetAt(this.currentAlignment.location);
this.scanner.resetTo(this.currentAlignment.location.inputOffset, this.scanner.eofPosition,this.currentAlignment.location.inputToken,this.currentAlignment.location.inputTokenNonWS);
// clean alignment chunkKind so it will think it is a new chunk again
this.currentAlignment.chunkKind = 0;
}
void redoMemberAlignment(AlignmentException e){
// reset scribe/scanner to restart at this given location
this.resetAt(this.memberAlignment.location);
this.scanner.resetTo(this.memberAlignment.location.inputOffset, this.scanner.eofPosition,this.memberAlignment.location.inputToken,this.currentAlignment.location.inputTokenNonWS);
// clean alignment chunkKind so it will think it is a new chunk again
this.memberAlignment.chunkKind = 0;
}
public void reset() {
this.checkLineWrapping = true;
this.line = 0;
this.column = 1;
this.editsIndex = 0;
this.nlsTagCounter = 0;
}
private void resetAt(Location location) {
this.line = location.outputLine;
this.column = location.outputColumn;
this.indentationLevel = location.outputIndentationLevel;
this.numberOfIndentations = location.numberOfIndentations;
this.lastNumberOfNewLines = location.lastNumberOfNewLines;
this.needSpace = location.needSpace;
this.pendingSpace = location.pendingSpace;
this.editsIndex = location.editsIndex;
this.nlsTagCounter = location.nlsTagCounter;
if (this.editsIndex > 0) {
this.edits[this.editsIndex - 1] = location.textEdit;
}
this.formatter.lastLocalDeclarationSourceStart = location.lastLocalDeclarationSourceStart;
}
private void resize() {
System.arraycopy(this.edits, 0, (this.edits = new OptimizedReplaceEdit[this.editsIndex * 2]), 0, this.editsIndex);
}
public void space() {
if (!this.needSpace) return;
this.lastNumberOfNewLines = 0;
this.pendingSpace = true;
this.column++;
this.needSpace = false;
}
public String toString() {
StringBuffer stringBuffer = new StringBuffer();
stringBuffer
.append("(page width = " + this.pageWidth + ") - (tabChar = ");//$NON-NLS-1$//$NON-NLS-2$
switch(this.tabChar) {
case DefaultCodeFormatterOptions.TAB :
stringBuffer.append("TAB");//$NON-NLS-1$
break;
case DefaultCodeFormatterOptions.SPACE :
stringBuffer.append("SPACE");//$NON-NLS-1$
break;
default :
stringBuffer.append("MIXED");//$NON-NLS-1$
}
stringBuffer
.append(") - (tabSize = " + this.tabLength + ")")//$NON-NLS-1$//$NON-NLS-2$
.append(this.lineSeparator)
.append("(line = " + this.line + ") - (column = " + this.column + ") - (identationLevel = " + this.indentationLevel + ")") //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
.append(this.lineSeparator)
.append("(needSpace = " + this.needSpace + ") - (lastNumberOfNewLines = " + this.lastNumberOfNewLines + ") - (checkLineWrapping = " + this.checkLineWrapping + ")") //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
.append(this.lineSeparator)
.append("==================================================================================") //$NON-NLS-1$
.append(this.lineSeparator);
printRule(stringBuffer);
return stringBuffer.toString();
}
public void unIndent() {
this.indentationLevel -= this.indentationSize;
this.numberOfIndentations--;
}
}