jp.sourceforge.moreemacs/src/jp/sourceforge/moreemacs/handlers/ForwardWordExecution.java

   1 package jp.sourceforge.moreemacs.handlers;\r
   2 \r
   3 import jp.sourceforge.moreemacs.utils.CodePointIterator;\r
   4 import jp.sourceforge.moreemacs.utils.DocumentCharSequence;\r
   5 \r
   6 import org.eclipse.jface.text.BadLocationException;\r
   7 import org.eclipse.jface.text.IDocument;\r
   8 \r
   9 public final class ForwardWordExecution extends TextEditorExecution {\r
  10 \r
  11         @Override\r
  12         public void execute() throws BadLocationException {\r
  13                 int current = cursor.offset();\r
  14                 cursor.move(getNextWordPosition(doc, current));\r
  15         }\r
  16 \r
  17         public static int getNextWordPosition(IDocument doc, int offset) throws BadLocationException {\r
  18             CharSequence seq = new DocumentCharSequence(doc, offset, doc.getLength()-offset);\r
  19             CodePointIterator itr = new CodePointIterator(seq);\r
  20 \r
  21 \r
  22             for(; itr.hasNext(); ) {\r
  23                 int codePoint = itr.next();\r
  24             if (Character.isLetterOrDigit(codePoint)) {\r
  25                 itr.previous();\r
  26                 break;\r
  27             }\r
  28             }\r
  29         for(; itr.hasNext(); ) {\r
  30             if (!Character.isLetterOrDigit(itr.next())) {\r
  31                 itr.previous();\r
  32                 break;\r
  33             }\r
  34         }\r
  35         \r
  36         return offset + itr.index();\r
  37         }\r
  38         \r
  39 }\r