Changeset 24 in default for trunk/de.ugoe.cs.swe.bnftools.ebnf.ui/src

Timestamp:

11/02/10 10:31:59 (14 years ago)

Author:

zeiss

Message:

 

File:

• trunk/de.ugoe.cs.swe.bnftools.ebnf.ui/src/de/ugoe/cs/swe/bnftools/ui/formatter/EbnfFormatterVisitor.java (modified) (2 diffs)

trunk/de.ugoe.cs.swe.bnftools.ebnf.ui/src/de/ugoe/cs/swe/bnftools/ui/formatter/EbnfFormatterVisitor.java

@@ -154 +154 @@
         }
         
+        private int scanBackNewlinesCount(String str, int position) {
+                int newLinesCount = 0;
+                int currentPosition = position;
+                while ((str.charAt(currentPosition) == '\n') || (str.charAt(currentPosition) == '\r')) {
+                        if (str.charAt(currentPosition) == '\n') {
+                                if (str.charAt(currentPosition - 1) == '\r') {
+                                        currentPosition -= 2;
+                                } else {
+                                        currentPosition -= 1;
+                                }
+                                newLinesCount++;
+                        } else if (str.charAt(currentPosition) == '\r') {
+                                currentPosition -= 1;
+                                newLinesCount++;
+                        }
+                }
+                
+                return newLinesCount;
+        }
+        
         private void weaveComments() {
                 bufferPosition = 0;
@@ -172 +192 @@
                                         if (currentComment.getTotalOffset() == bufferPositionOriginalText) {
                                                 if (isMultiLineComment(currentComment.getText())) {
-                                                        result.append(currentComment.getText());
-                                                        result.append("\n");
+                                                        int newLinesCount = scanBackNewlinesCount(originalText, bufferPositionOriginalText-1);
+                                                        if (newLinesCount > 0) {
+                                                                result.append(currentComment.getText());
+                                                                result.append("\n");
+                                                        } else {
+                                                                String lastWhiteSpaces = scanBackWhitespaces(result.toString(), result.toString().length()-1);
+                                                                result.delete(result.toString().length() - lastWhiteSpaces.length(), result.toString().length());
+                                                                result.append(" " + stripEndingNewline(currentComment.getText()));
+                                                                result.append(lastWhiteSpaces);
+                                                        }
                                                 } else if (isSingleLineComment(currentComment.getText())) {
+                                                        int newLinesCount = scanBackNewlinesCount(originalText, bufferPositionOriginalText-1);
                                                         String lastWhiteSpaces = scanBackWhitespaces(result.toString(), result.toString().length()-1);
                                                         result.delete(result.toString().length() - lastWhiteSpaces.length(), result.toString().length());
-                                                        result.append(" " + stripEndingNewline(currentComment.getText()));
+                                                        if (newLinesCount > 0) {
+                                                                result.append("\n\n" + stripEndingNewline(currentComment.getText()));
+                                                        } else {
+                                                                result.append(" " + stripEndingNewline(currentComment.getText()));
+                                                        }
                                                         result.append(lastWhiteSpaces);
                                                 }