[kwillets]

In my case I was thinking of long strings such as SQL queries. We would show a few initial words, but in SQL they're typically the same.

For example:

    select sum(sales) from tablexyz where region = 'West'             
    select sum(sales) from tablexyz where region = 'South'

In this case I think we want the distinguishing word or token, and we can fill the remaining space with text from the left, eg "select sum(sales)..'South'".

I could write out some javascript for this, but IANA front-end or css expert.