Suppose I have files vendor/lib.js and index.html in my PWD. I am adding a script tag to index.html (cursor position denoted by |):
....
<script src="vendor/|"></script>
....
Then I hit C-TAB and the string "vendor/" gets completed to "vendor/lib.js" (or suggestions are shown if there is ambiguity).
More formally, I want this functionality to be available for several attributes of the specific set of tags. For example, <script src=""/>, <a href=""/>, <link href=""/>, <img src=""/>, and so on.
Is there a minor mode for that? If there is no, I will appreciate any insights on how it can be implemented.