U+2015 HORIZONTAL DASH, 2-em and 3-em dashes in the Chicago Manual of Style

From: Karl Pentzlin (karl-pentzlin@acssoft.de)
Date: Tue Jan 26 2010 - 06:06:29 CST

  • Next message: Michael Everson: "Re: U+2015 HORIZONTAL DASH, 2-em and 3-em dashes in the Chicago Manual of Style"

    The Chicago Manual of Style (15th ed. [2003], ISBN 0-226-10403-6)
    explains different 2-em and 3-em dashes for different punctuation
    requirements (p.265, 6.95/6.96; see attached excerpt).
    However, Unicode knows only one "long dash" beyond the em dash,
    U+2015 HORIZONTAL BAR, for which no length is specified, and another
    use is recommended ("long dash introducing quoted text").
    Also, the horizontal bar is not considerably longer than the em dash
    in several fonts.

    Is this omission of 2-em and 3-em dashes in Unicode intentional?

    - Karl


    chicago2.png

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