Spaces in Unquoted Block Keys

[deckar01]

Prerequisites

• [x] Put an X between the brackets on this line if you have done all of the following:
  • Reproduced the problem in Safe Mode: http://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: http://flight-manual.atom.io/hacking-atom/sections/debugging/
  • Checked the FAQs on the message board for common solutions: https://discuss.atom.io/c/faq
  • Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aatom
  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

Spaces in the middle of unquoted block keys breaks syntax highlighting.

Steps to Reproduce

1. Add an unquoted key for a block containing a space in the middle
   • Example: Space Ghost: >
   • Example: Ghost in the Shell: |

Expected behavior: The key should become red like a key.

Actual behavior: The key remains green like a value.

Reproduces how often: Consistent (100%)

Versions

• Atom 1.15.0 (x64)
• language-yaml 0.28.0

Additional Information

The CSS classes should be syntax--entity syntax--name syntax--tag, but are syntax--string syntax--unquoted.