From @billti on November 1, 2015 6:10

The API call document.getWordRangeAtPosition(position) appears to use its own definition of a word. For example, my tmLanguage defines attrib-name as a token/scope, yet getWordRangeAtPosition appears to break this into 2 words on the - character.

How can I get token ranges at a position based on my custom syntax? (And it would be really useful if I could get the scope name that goes along with it too).

Copied from original issue: Microsoft/vscode-extensionbuilders#76