On 2011-06-13 15:27, Zdenek Wagner wrote: > 2011/6/13 Pander <pan...@users.sourceforge.net>: >> TeX Live list members: see full thread here: >> http://tug.org/pipermail/xetex/2011-June/020681.html for now keep the >> discussion at XeTeX's list. >> >> On 2011-06-13 14:22, msk...@ansuz.sooke.bc.ca wrote: >>> On Mon, 13 Jun 2011, Pander wrote: >>>> TeX Live 2010 >>>> >>>> /usr/local/texlive/2010/texmf-dist/fonts/opentype/public/ocr-b-outline/ocrb10.otf >>> >>> That is Zdeněk Wagner's auto-conversion of Norbert Schwarz's Metafont >>> source. It doesn't contain f-ligatures no matter what the GSUB table may >>> say. I took a look at it with Fontforge and I see that it contains a GSUB >>> table pointing the ligatures at "alternate" and added non-ASCII characters >>> from the Schwarz version, some of which happen to be ligature-like but not >>> the correct ones. For instance, "fl" points at the Æ glyph. >>> >>> I recogize that pattern because it happened in an earlier version of my >>> own version of the font, as a result of auto-conversion. The thing is, >>> Schwarz's Metafont files used a nonstandard custom encoding. If you >>> simply convert the font code point for code point to whatever the default >>> 8-bit Adobe encoding might be, you end up with Schwarz's extra glyphs at >>> the "f-ligature" code points (as well as some distortions at quotation >>> mark, dotless i and j, and similar code points). The existence of a GSUB >>> table pointing at those points can probably be explained by defaults from >>> the auto-conversion. So in summary, yes, it's a bug in the font. >> >> Could the conversion software generate a warning when it recognises such >> a situation? >> > The fonts were first converted to PFB by mftrace, then opened in > FontForge and saved as OTF. No warning was displayed.
Sorry, I mean, should those software packages be improved to generate warnings for these kind of situations to prevent it in the future? -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex
