+++ /dev/null
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved.
- */
-package net.sourceforge.phpdt.internal.corext.textmanipulation;
-
-// import net.sourceforge.phpdt.core.ISourceRange;
-//
-// import net.sourceforge.phpdt.internal.corext.Assert;
-
-public final class TextRange {
-
- /* package */int fOffset;
-
- /* package */int fLength;
-
- public static final TextRange UNDEFINED = new TextRange((TextRange) null);
-
- /**
- * Creates a insert position with the given offset.
- *
- * @param offset
- * the position offset, must be >= 0
- */
- public TextRange(int offset) {
- this(offset, 0);
- }
-
- /**
- * Creates a new range with the given offset and length.
- *
- * @param offset
- * the position offset, must be >= 0
- * @param length
- * the position length, must be >= 0
- */
- public TextRange(int offset, int length) {
- fOffset = offset;
- // Assert.isTrue(fOffset >= 0);
- fLength = length;
- // Assert.isTrue(fLength >= 0);
- }
-
- /**
- * Constructor for the undefined text range.
- */
- private TextRange(TextRange dummy) {
- fOffset = -1;
- fLength = -1;
- }
-
- public static TextRange createFromStartAndLength(int start, int length) {
- return new TextRange(start, length);
- }
-
- public static TextRange createFromStartAndInclusiveEnd(int start, int end) {
- return new TextRange(start, end - start + 1);
- }
-
- public static TextRange createFromStartAndExclusiveEnd(int start, int end) {
- return new TextRange(start, end - start);
- }
-
- /**
- * Creates a new range from the given source range.
- *
- * @range the source range denoting offset and length
- */
- // public TextRange(ISourceRange range) {
- // this(range.getOffset(), range.getLength());
- // }
- /**
- * Returns the offset of this range.
- *
- * @return the length of this range
- */
- public int getOffset() {
- return fOffset;
- }
-
- /**
- * Returns the length of this range.
- *
- * @return the length of this range
- */
- public int getLength() {
- return fLength;
- }
-
- /**
- * Returns the inclusive end position of this range. That means that the end
- * position denotes the last character of this range.
- *
- * @return the inclusive end position
- */
- public int getInclusiveEnd() {
- return fOffset + fLength - 1;
- }
-
- /**
- * Returns the exclusive end position of this range. That means that the end
- * position denotes the first character after this range.
- *
- * @return the exclusive end position
- */
- public int getExclusiveEnd() {
- return fOffset + fLength;
- }
-
- /**
- * Creates a copy of this <code>TextRange</code>.
- *
- * @return a copy of this <code>TextRange</code>
- */
- public TextRange copy() {
- if (isUndefined())
- return this;
- return new TextRange(fOffset, fLength);
- }
-
- /**
- * Returns <code>true</code> if this text range is the
- * <code>UNDEFINED</code> text range. Otherwise <code>false</code> is
- * returned.
- */
- public boolean isUndefined() {
- return UNDEFINED == this;
- }
-
- /**
- * Checks if this <code>TextRange</code> is valid. For valid text range
- * the following expression evaluates to <code>true</code>:
- *
- * <pre>
- * getOffset() >= 0 && getLength() >= 0
- * </pre>
- *
- * @return <code>true</code> if this text range is a valid range.
- * Otherwise <code>
- * false</code>
- */
- public boolean isValid() {
- return fOffset >= 0 && fLength >= 0;
- }
-
- /* package */boolean isInsertionPoint() {
- return fLength == 0;
- }
-
- /* package */boolean equals(TextRange range) {
- return fOffset == range.fOffset && fLength == range.fLength;
- }
-
- /* package */boolean isEqualInsertionPoint(TextRange range) {
- return fLength == 0 && range.fLength == 0 && fOffset == range.fOffset;
- }
-
- /* package */boolean liesBehind(TextRange range) {
- return fOffset >= range.fOffset + range.fLength;
- }
-
- /* package */boolean isInsertionPointAt(int o) {
- return fOffset == o && fLength == 0;
- }
-
- /* package */boolean covers(TextRange other) {
- if (fLength == 0) { // an insertion point can't cover anything
- return false;
- } else if (other.fLength == 0) {
- int otherOffset = other.fOffset;
- return fOffset < otherOffset && otherOffset < fOffset + fLength;
- } else {
- int otherOffset = other.fOffset;
- return fOffset <= otherOffset
- && otherOffset + other.fLength <= fOffset + fLength;
- }
- }
-
- /*
- * non Java-doc
- *
- * @see Object#toString()
- */
- public String toString() {
- StringBuffer buffer = new StringBuffer();
- buffer.append(TextManipulationMessages.getString("TextRange.offset")); //$NON-NLS-1$
- buffer.append(fOffset);
- buffer.append(TextManipulationMessages.getString("TextRange.length")); //$NON-NLS-1$
- buffer.append(fLength);
- return buffer.toString();
- }
-
- public boolean equals(Object obj) {
- if (!(obj instanceof TextRange))
- return false;
- TextRange other = (TextRange) obj;
- return fOffset == other.getOffset() && fLength == other.getLength();
- }
-
- public int hashCode() {
- return fOffset ^ fLength;
- }
-
-}
git://git.phpeclipse.com / phpeclipse.git / blobdiff