In Brackets we have an HTML utility API ``getTagInfo(editor, cursorPosition)`` to provide the context of an HTML tag and is already used by tag hinting and attribute hinting. However, we do not have a similar CSS utility API to provide CSS rule information. So this document specifies the new CSS utility API for the following goals.
* To avoid duplicate effort in detecting CSS context by individual extension provider.
* To avoid inconsistent or incomplete implementation of CSS context detection.
* To provide a maintainable, scalable implementation of CSS context that has complete coverage of all possible CSS context.
* To provide a maintainable, scalable implementation of CSS context that has a complete coverage of all possible CSS context.
## getRuleInfo ##
The new API will be defined as getRuleInfo(editor, cursorPos). It takes two arguments -- editor object and cursor position, and returns a rule infomation object.
**Open question** - should we call it getCssInfo since some of the context does not apply to a css rule (eg. @charset "u|tf-8").
