devx/.vale/styles/Google/Units.yml

extends: existence
message: "Put a nonbreaking space between the number and the unit in '%s'."
link: "https://developers.google.com/style/units-of-measure"
nonword: true
level: error
tokens:
  - '\b\d+(?:B|kB|MB|GB|TB)\b'
  - '\b\d+(?:ns|ms|min|h|d)\b'
  # Seconds are split out so a decade ('1990s') isn't read as a unit.
  - '\b\d+s\b(?<!\b(?:19|20)\d\ds\b)'