Firefox: develop an interface for grammar checkers

Develop an interface in Firefox that allows add-on developers to plug in a grammar checker. From the interface point of view, grammar checking is very similar to spell checking (which is already supported by Firefox). These are the major differences:

* A spell checker checks word by word -- a grammar checker works on the complete text

* A spell checker returns true/false whether the word is correct and, optionally, a list of corrections -- a grammar checker returns a list of positions with errors and for each error: start position, end position, error message, optional: list of corrections

The interface needs to take errors (message, from/to position, corrections) found by an add-on (as from [login to view URL]). It underlines the errors in a textarea with a blue underline. Errors can cover a single word or several words. Writing the add-on is *not* part of this job, neither is any grammar checking logic needed. The interface needs to be done in C++, but it needs to be callable from add-ons that are written in Javascript.

Also see the [login to view URL] for a more detailed description.

Please bid only if you have provable C++ experience and if you feel safe working on large code bases like Firefox.

C++ Programming Firefox Software Architecture

Project ID: #7617681

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