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- Use the ASCII hyphen-minus
- (U+002D) as the only dash character
- Never emit U+2014 em dash, U+2013 en dash, U+2012 figure dash, U+2015 horizontal bar or
U+2212 minus sign, anywhere: source, comments, docs, commit messages, PR bodies, UI copy, chat
- When a sentence wants an em dash, use a comma, a colon, a period or parentheses instead
- Prefer ASCII quotes
' and " over typographic quotes
- Never introduce these characters while editing an existing file, even if neighbouring text has them