ジャンプ機能を実装

diff --git a/plugin.xml b/plugin.xml
index d119feb..ffc51df 100644 (file)
--- a/plugin.xml
+++ b/plugin.xml
@@ -21,14 +21,24 @@
         <command
             name="Cobolアウトライン"
             categoryId="coboled.editors.category"
-            id="coboled.editors.command">
+            id="coboled.editors.command.quickoutline">
+        </command>
+        <command
+            name="Cobolジャンプ"
+            categoryId="coboled.editors.category"
+            id="coboled.editors.command.jump">
         </command>
     </extension>
 
     <extension point="org.eclipse.ui.bindings">
         <key sequence="M1+O"
             contextId="coboled.editors.cobolEditorScope"
-            commandId="coboled.editors.command"
+            commandId="coboled.editors.command.quickoutline"
+            schemeId="org.eclipse.ui.defaultAcceleratorConfiguration">
+        </key>
+        <key sequence="F3"
+            contextId="coboled.editors.cobolEditorScope"
+            commandId="coboled.editors.command.jump"
             schemeId="org.eclipse.ui.defaultAcceleratorConfiguration">
         </key>
     </extension>
@@ -44,9 +54,13 @@
 
     <extension point="org.eclipse.ui.handlers">
         <handler
-            commandId="coboled.editors.command"
+            commandId="coboled.editors.command.quickoutline"
             class="coboled.editors.command.QuickOutLineHandler">
         </handler>
+        <handler
+            commandId="coboled.editors.command.jump"
+            class="coboled.editors.command.JumpHandler">
+        </handler>
     </extension>
     
     <extension

diff --git a/src/coboled/editors/command/JumpHandler.java b/src/coboled/editors/command/JumpHandler.java
new file mode 100644 (file)
index 0000000..1c77db2
--- /dev/null
+++ b/src/coboled/editors/command/JumpHandler.java
@@ -0,0 +1,142 @@
+package coboled.editors.command;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.ITextSelection;
+import org.eclipse.jface.viewers.ISelectionProvider;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.handlers.HandlerUtil;
+import org.eclipse.ui.texteditor.IDocumentProvider;
+
+import coboled.editors.CobolEditor;
+
+public class JumpHandler extends AbstractHandler {
+
+       @Override
+       public Object execute(ExecutionEvent event) throws ExecutionException {
+               CobolEditor editor = (CobolEditor) HandlerUtil.getActiveEditor(event);
+               String source = getDocument(editor).get();
+               String selection = getSelection(editor);
+               int offset = findDefinition(source, selection);
+               if(offset != -1) {
+                       editor.selectAndReveal(offset, selection.length());
+               } else {
+                       IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked(event);
+                       MessageDialog.openInformation(window.getShell(),
+                                       "CobolEditorエラー",
+                                       selection + "は見つかりませんでした");
+               }
+               return null;
+       }
+       
+       private String getSelection(CobolEditor editor) {
+               ISelectionProvider selectionProvider = editor.getSelectionProvider();
+               ITextSelection selection = (ITextSelection) selectionProvider.getSelection();
+               if(selection.getLength() != 0) {
+                       return selection.getText();
+               } else {
+                       return getSelectWord(editor);
+               }
+       }
+       
+       private String getSelectWord(CobolEditor editor) {
+               IDocument doc = getDocument(editor);
+               int caretPos = getCaretPos(editor);
+               int startPos, endPos;
+
+               try {
+                       int pos = caretPos;
+                       char c;
+
+                       while (pos >= 0) {
+                               c = doc.getChar(pos);
+                               if (!Character.isJavaIdentifierPart(c))
+                                       break;
+                               --pos;
+                       }
+
+                       startPos = pos;
+
+                       pos = caretPos;
+                       int length = doc.getLength();
+
+                       while (pos < length) {
+                               c = doc.getChar(pos);
+                               if (!Character.isJavaIdentifierPart(c))
+                                       break;
+                               ++pos;
+                       }
+
+                       endPos = pos;
+                       int offset = startPos + 1;
+                       int wordLength = endPos - offset;
+                       return doc.get(offset, wordLength);
+                       
+               } catch (BadLocationException e) {
+               }
+               return "";
+       }
+
+       private IDocument getDocument(CobolEditor editor) {
+               IDocumentProvider provider = editor.getDocumentProvider();
+               IDocument doc = provider.getDocument(editor.getEditorInput());
+               return doc;
+       }
+
+       private int getCaretPos(CobolEditor editor) {
+               ISelectionProvider selectionProvider = editor.getSelectionProvider();
+               ITextSelection selection = (ITextSelection) selectionProvider.getSelection();
+               int caretPos = selection.getOffset();
+               return caretPos;
+       }
+       
+       private int findDefinition(String source, String selection) {
+               int offset = findSectionDefinition(source, selection);
+               if(offset == -1) {
+                       offset = findDataDefinition(source, selection);
+               }
+               return offset;
+       }
+       
+       private int findSectionDefinition(String source, String selection) {
+               StringBuilder patternString = new StringBuilder();
+               patternString.append("^.{6} ( {0,3})");
+               patternString.append("(");
+               patternString.append(selection);
+               patternString.append(")");
+               patternString.append("( +?SECTION)");
+               return find(source, patternString.toString(), 2);
+       }
+       
+       private int findDataDefinition(String source, String selection) {
+               StringBuilder patternString = new StringBuilder();
+               patternString.append("^.{6} ( *?)([0-9][0-9])( +?)");
+               patternString.append("(");
+               patternString.append(selection);
+               patternString.append(")");
+               return find(source, patternString.toString(), 4);
+       }
+       
+       /**
+        * オフセットを返却する。検索結果が0の場合は-1を返却する。
+        * 
+        * @param source
+        * @param patternString
+        * @return offset
+        */
+       private int find(String source, String patternString, int group) {
+               Pattern pattern = Pattern.compile(patternString, Pattern.MULTILINE);
+               Matcher matcher = pattern.matcher(source);
+               if(matcher.find()) {
+                       return matcher.start(group);
+               }
+               return -1;
+       }
+}