How to replace a particular String with another String in the currently opened editor?

Question

Hi, I m doing a eclipse plugin project to create an IDE. In my IDE,the currently opened editor is checked for a particular string and should be replaced by a string entered in the textbox which is in the side view. I m able to access the editor but if i search for the particular string and replace that string with the input entered by the user it is not working.

 IDocumentProvider provider=((AbstractTextEditor) ieditorpart).getDocumentProvid();
 IDocument doc = provider.getDocument(ieditorpart.getEditorInput());  
 String content = doc.get();
 pos=content.compareTo("\\/\\*ProbeEnd\\*\\/");
 doc.replace(pos,5, "hello");

But this is not working... here i have just given the replacement string as hello,but that value should be taken from the textbox..

Is there any mistake in accessing the editor? should i use this approach to do this or is there any approach to implement this? Can Anyone help me in doing this?

Adreamus · Accepted Answer · 2012-03-07 12:50:09Z

1

Why is the variable 'pos' the compareTo-Value (-1,0,1)? The compareTo returns the lexicographical order of the two Strings.

The replace method of IDocument has three parameters:

int offset - the offset in the document, where 'text' should be inserted
int length - the length starting from 'offset', which should be overwritten. length 0 means insert.
String text - the substitution text

Example:

String oldContent = doc.get();
assert oldContent.equals("TestingText");

String replaceText = "REPLACE";

doc.replace(5,3,replaceText);

String newContent = doc.get();
assert newContent.equals("TestiREPLACEext");
//offset 5 is the position after 'Testi'
//length 3 means 'ngT' (starting from the offset) should be replaced
//REPLACE is the newText

answered Mar 7, 2012 at 12:50

Adreamus

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Viral · Accepted Answer · 2012-03-05 19:26:09Z

0

Call firePropertyChange(IEditorPart.PROP_INPUT) from your editor.

answered Mar 5, 2012 at 19:26

Viral

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1 Comment

Adreamus Over a year ago

in default texteditors, the editor registered an listener to the document and is informed about a replace directly. It is not necessary to fire that the input changed.

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