Re: [OpenType] PS glyph `phi' vs `phi1'

From: Werner LEMBERG (
Date: Wed Feb 19 2003 - 14:54:58 EST

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    From: Barbara Beeton <>
    Subject: re: [OpenType] PS glyph `phi' vs `phi1'
    Date: Wed, 19 Feb 2003 11:56:03 -0500 (EST)

    [Dear Barbara, I took the liberty to cite your message almost
     completely while CCing the opentype and unicode lists.]

    > the shapes of the two `phi's haven't changed since unicode 2.0; the
    > change for unicode 3.2 is in the additional text. the naming in
    > unicode of 03D5 as a "symbol" is the unicode technical committee's
    > convention for indicating "an established variant that we have to
    > include". while i disagree with the designation of 03D5 as a symbol
    > to the exclusion of 03C6 (resulting in the note "in mathematical
    > contexts ..."), the fact that both shapes already existed in unicode
    > meant that they shouldn't be switched, since they had presumably
    > been used in documents whose meaning could be corrupted thereby.
    > i have to regard the unicode use as correct regarding codes and
    > shapes. there *could* be an error in the annotations; i'm not
    > familiar with the name "phi1". the only entity names i know are
    > these:
    > - isogrk3:
    > - phis = straight phi
    > - phiv = curly or open phi
    > - isogrk1:
    > - phgr = small phi, greek (shown as a curly phi)
    > - there is no straight phi in this entity set
    > unlike the main unicode names (which can't be changed -- a rule that
    > ensures that iso 10646 will be identical to the relevant subset of
    > unicode), the annotations can be changed, so i will forward your
    > query to my contacts on the utc.

    Thanks. As a conclusion it seems that both Adobe's mapping of U+03D5
    and U+03C6 to glyph names and the Unicode annotation for U+03D5 is
    incorrect (in case backwards compatibility is of importance).

    The right mapping should be

      phi 03D5
      phi1 03C6


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