Why translation memory provider didn't support highlight function?

Question

Hi, 
 We all know that SDL local file TM support hightlight the differences between the input text and the returned source text, just like this: 
 
 Howerver, Our plugin which implements translation provider function can't display the difference, the result is: 
 
 Is there any method to achieve this function?

Romulus Crisan (former member) · Answer

In order to for this to work you need to calculate the determine the changes and calculate the positions where there are differences. You then need to set this information on the following property: 
 searchResult.ScoringResult.EditDistance 
 Calculating the changes and differences is not a trivial taks and we are looking at ways on how we can expose the existing implementation. Until then you need to provide your implementation.

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Why translation memory provider didn't support highlight function?