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Diffstat (limited to 'eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/AndroidXmlCharacterMatcher.java')
-rw-r--r--eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/AndroidXmlCharacterMatcher.java238
1 files changed, 0 insertions, 238 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/AndroidXmlCharacterMatcher.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/AndroidXmlCharacterMatcher.java
deleted file mode 100644
index 8a12fe03b..000000000
--- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/AndroidXmlCharacterMatcher.java
+++ /dev/null
@@ -1,238 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Eclipse Public License, Version 1.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.eclipse.org/org/documents/epl-v10.php
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.ide.eclipse.adt.internal.editors;
-
-import static org.eclipse.wst.xml.core.internal.regions.DOMRegionContext.XML_EMPTY_TAG_CLOSE;
-import static org.eclipse.wst.xml.core.internal.regions.DOMRegionContext.XML_END_TAG_OPEN;
-import static org.eclipse.wst.xml.core.internal.regions.DOMRegionContext.XML_TAG_CLOSE;
-import static org.eclipse.wst.xml.core.internal.regions.DOMRegionContext.XML_TAG_NAME;
-import static org.eclipse.wst.xml.core.internal.regions.DOMRegionContext.XML_TAG_OPEN;
-
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.IRegion;
-import org.eclipse.jface.text.Region;
-import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
-import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
-import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
-import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList;
-import org.eclipse.wst.xml.ui.internal.text.XMLDocumentRegionEdgeMatcher;
-
-/**
- * Custom version of the character matcher for XML files which adds the ability to
- * jump between open and close tags in the XML file.
- */
-@SuppressWarnings("restriction")
-public class AndroidXmlCharacterMatcher extends XMLDocumentRegionEdgeMatcher {
- /**
- * Constructs a new character matcher for Android XML files
- */
- public AndroidXmlCharacterMatcher() {
- }
-
- @Override
- public IRegion match(IDocument doc, int offset) {
- if (offset < 0 || offset >= doc.getLength()) {
- return null;
- }
-
- IRegion match = findOppositeTag(doc, offset);
- if (match != null) {
- return match;
- }
-
- return super.match(doc, offset);
- }
-
- private IRegion findOppositeTag(IDocument document, int offset) {
- if (!(document instanceof IStructuredDocument)) {
- return null;
- }
- IStructuredDocument doc = (IStructuredDocument) document;
-
- IStructuredDocumentRegion region = doc.getRegionAtCharacterOffset(offset);
- if (region == null) {
- return null;
- }
-
- ITextRegion subRegion = region.getRegionAtCharacterOffset(offset);
- if (subRegion == null) {
- return null;
- }
- ITextRegionList subRegions = region.getRegions();
- int index = subRegions.indexOf(subRegion);
-
- String type = subRegion.getType();
- boolean isOpenTag = false;
- boolean isCloseTag = false;
-
- if (type.equals(XML_TAG_OPEN)) {
- isOpenTag = true;
- } else if (type.equals(XML_END_TAG_OPEN)) {
- isCloseTag = true;
- } else if (!(type.equals(XML_TAG_CLOSE) || type.equals(XML_TAG_NAME)) &&
- (subRegion.getStart() + region.getStartOffset() == offset)) {
- // Look to the left one character; we may have the case where you're
- // pointing to the right of a tag, e.g.
- // <foo>^text
- offset--;
- region = doc.getRegionAtCharacterOffset(offset);
- if (region == null) {
- return null;
- }
- subRegion = region.getRegionAtCharacterOffset(offset);
- if (subRegion == null) {
- return null;
- }
- type = subRegion.getType();
-
- subRegions = region.getRegions();
- index = subRegions.indexOf(subRegion);
- }
-
- if (type.equals(XML_TAG_CLOSE) || type.equals(XML_TAG_NAME)) {
- for (int i = index; i >= 0; i--) {
- subRegion = subRegions.get(i);
- type = subRegion.getType();
- if (type.equals(XML_TAG_OPEN)) {
- isOpenTag = true;
- break;
- } else if (type.equals(XML_END_TAG_OPEN)) {
- isCloseTag = true;
- break;
- }
- }
- }
-
- if (isOpenTag) {
- // Find closing tag
- int target = findTagForwards(doc, subRegion.getStart() + region.getStartOffset(), 0);
- // Note - there is no point in looking up the whole region for the matching
- // tag, because even if you pass a length greater than 1 here, the paint highlighter
- // will only highlight a single character -- the *last* character of the region,
- // not the whole region itself.
- return new Region(target, 1);
- } else if (isCloseTag) {
- // Find open tag
- int target = findTagBackwards(doc, subRegion.getStart() + region.getStartOffset(), -1);
- return new Region(target, 1);
- }
-
- return null;
- }
-
- /**
- * Finds the corresponding open tag by searching backwards until the tag balance
- * reaches a given target.
- *
- * @param doc the document
- * @param offset the ending offset (where the search begins searching backwards from)
- * @param targetTagBalance the balance to end the search at
- * @return the offset of the beginning of the open tag
- */
- public static int findTagBackwards(IStructuredDocument doc, int offset, int targetTagBalance) {
- // Balance of open and closing tags
- int tagBalance = 0;
- // Balance of open and closing brackets
- IStructuredDocumentRegion region = doc.getRegionAtCharacterOffset(offset);
- if (region != null) {
- boolean inEmptyTag = true;
-
- while (region != null) {
- int regionStart = region.getStartOffset();
- ITextRegionList subRegions = region.getRegions();
- for (int i = subRegions.size() - 1; i >= 0; i--) {
- ITextRegion subRegion = subRegions.get(i);
- int subRegionStart = regionStart + subRegion.getStart();
- if (subRegionStart >= offset) {
- continue;
- }
- String type = subRegion.getType();
-
- // Iterate backwards and keep track of the tag balance such that
- // we can find the corresponding opening tag
-
- if (XML_TAG_OPEN.equals(type)) {
- if (!inEmptyTag) {
- tagBalance--;
- }
- if (tagBalance == targetTagBalance) {
- return subRegionStart;
- }
- } else if (XML_END_TAG_OPEN.equals(type)) {
- tagBalance++;
- } else if (XML_EMPTY_TAG_CLOSE.equals(type)) {
- inEmptyTag = true;
- } else if (XML_TAG_CLOSE.equals(type)) {
- inEmptyTag = false;
- }
- }
-
- region = region.getPrevious();
- }
- }
-
- return -1;
- }
-
- /**
- * Finds the corresponding closing tag by searching forwards until the tag balance
- * reaches a given target.
- *
- * @param doc the document
- * @param start the starting offset (where the search begins searching forwards from)
- * @param targetTagBalance the balance to end the search at
- * @return the offset of the beginning of the closing tag
- */
- public static int findTagForwards(IStructuredDocument doc, int start, int targetTagBalance) {
- int tagBalance = 0;
- IStructuredDocumentRegion region = doc.getRegionAtCharacterOffset(start);
-
- if (region != null) {
- while (region != null) {
- int regionStart = region.getStartOffset();
- ITextRegionList subRegions = region.getRegions();
- for (int i = 0, n = subRegions.size(); i < n; i++) {
- ITextRegion subRegion = subRegions.get(i);
- int subRegionStart = regionStart + subRegion.getStart();
- int subRegionEnd = regionStart + subRegion.getEnd();
- if (subRegionEnd < start) {
- continue;
- }
- String type = subRegion.getType();
-
- if (XML_TAG_OPEN.equals(type)) {
- tagBalance++;
- } else if (XML_END_TAG_OPEN.equals(type)) {
- tagBalance--;
- if (tagBalance == targetTagBalance) {
- return subRegionStart;
- }
- } else if (XML_EMPTY_TAG_CLOSE.equals(type)) {
- tagBalance--;
- if (tagBalance == targetTagBalance) {
- // We don't jump to matching tags within a self-closed tag
- return -1;
- }
- }
- }
-
- region = region.getNext();
- }
- }
-
- return -1;
- }
-}
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