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# R13 (skill-language-style): spell out one through nine; use numerals for
# 10 and above. EXPERIMENTAL -- flagged for empirical testing: this is
# expected to over-fire on version numbers, dimensions, and code values,
# which R13 explicitly exempts and a lexical rule can't distinguish from
# prose counts. See test fixture for the false-positive evidence.
extends: existence
message: "Spell out '%s' (one through nine) in prose, unless it's a dimension, version, or code value (see R13)."
link: https://learn.microsoft.com/en-us/style-guide/numbers
level: suggestion
scope: text
nonword: true
tokens:
- '(?<![\w.])[1-9](?![\w.%])'