On Thu, Jan 10, 2008 at 05:27:22PM +0100, Joerg van den Hoff wrote:
what I really would think wrong behaviour is seen with diacritical marks:something like.EQ lpile { K hat = y above K dot = x } .EN shows that the "hat" is sort of right aligned above the K, not centered as the dot is in the ps output. moreover the vertical distance above the K seems different for both marks (probably they both are "top aligned" in this direction?).
It's my experience that this is common with combining diacritic marks in most TrueType fonts. In other words, this bug is not specific to Heirloom troff, but instead probably a problem with the fonts.
See the page <http://en.wikipedia.org/wiki/N-diaeresis>, where (at least for me), the bolded n-diaereses at the top of the page, as well as some of the "Letters using umlaut or diaeresis sign" at the bottom of the page, exhibit this behavior.
What Heirloom troff does differently is that it probably melds these into a K with combining diacritic, whereas groff almost certainly does not.
HTH. -- brian m. carlson / brian with sandals: Houston, Texas, US +1 713 440 7475 | http://crustytoothpaste.ath.cx/~bmc | My opinion only a typesetting engine: http://crustytoothpaste.ath.cx/~bmc/code/thwack OpenPGP: RSA v4 4096b 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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