From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 28 Jun 2011 13:25:22 +0200 From: tlaronde@polynum.com To: mjkerpan@kerpan.com, Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Message-ID: <20110628112522.GB498@polynum.com> References: <20110625171134.GA3661@polynum.com> <20110626075745.GA395@polynum.com> <20110627114856.GA7099@polynum.com> <9308c52f360f6274e0730399741278ce@ladd.quanstro.net> <20110627172006.GA497@polynum.com> <20110627180153.GA1371@polynum.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i Subject: Re: [9fans] [RFC] fonts and unicode/utf [TeX] Topicbox-Message-UUID: f78c0448-ead6-11e9-9d60-3106f5b1d025 On Mon, Jun 27, 2011 at 05:17:16PM -0400, Michael Kerpan wrote: > > The subfont system works fine if you both have a complete Type 1 font > set including all the "expert fonts" including the extra glyphs and > the like AND are willing to put together a mapping for it. The problem > is that fonts haven't shipped (to consumers, at least) in that form > for about 10 years. Unless I fundamentally misunderstand the subfont > system (which I admit that I might), for any font made within the > last 10 years or so, using the subfont/virtual font system would > entail the following steps: > 1. Break the complete OpenType font down into a combination of PFBs > and AFMs containing the complete set of characters between them, >[...] You miss my point: the "subfont" is just letting the inners of TeX alone by splitting, for TeX, tfm in subfonts. The fonts by themselves are left alone. The dvi drivers deal with the fonts; not TeX. TeX needs only the metrics. After some substitutions (by virtual fonts), TeX tells only "take this glyph of this font and put it here". And the font, eventually, has a foreign link to the TFM used by TeX. The main particularity with afm2tfm(1) is that the PostScript standard encoding is not Unicode, even not latin1. So one needs to specify an encoding. As long as the encoding of the fonts is known, a program will "import" (just creates the TFM) for a font so that TeX will know the metrics. The main support is in the dvi drivers (mainly dvips(1)). -- Thierry Laronde http://www.kergis.com/ Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C