From: Frank Yung-Fong Tang (email@example.com)
Date: Wed Nov 19 2003 - 21:23:08 EST
Philippe Verdy wrote:
> From: "Frank Yung-Fong Tang" <firstname.lastname@example.org>
> > It is not that easy for you from "don't know beans about fonts" to
> > "creat a test font that contains ... \u20050". If you are lucky, it
> > take you several month if not year. There are commercial base font
> > But I am not sure they support 32 bits cmap or not (probably not).
> According to:
> The so-called "Microsoft Unicode" cmap format 4 (platfom id=3, encoding
> id=1) is the one recommanded for all fonts, except those than need to
> supplementary planes.
> Format 0 is deprecated (was used to map 8-bit encodings to glyph ids), as
> well as now Format 2 (was used to map DBCS encodings with leadbyte/trail
> bytes in East Asia, as a mix of 8 and 16 bit codes)
> For supplementary planes, like a font built to support GB18030, the cmap
> format 12 must be used instead with the same platform id, but the
> id 10 (UCS-4).
> Format 8 is used to create a mix of 16-bit and 32-bit maps (with the
> assumption that no 16bit Unicode character will have the same code
> point as
> the highest 16-bit of a character out of the BMP, meaning that it
> works as
> long as there's no glyph to assign for Unicode codepoints X between
> and U+0010 simultaneously with codepoints between X<<16 and (X+1)<<16 -
> 1).This compresses a bit the size of the cmap.
> Format 10 is not portable unlike format 12 which must be provided in
> addition to the recommanded format 4 for characters present in the
> BMP. In
> practice, this format is used mostly for GB18030 support, and
> supported by
> Windows 2000 and later. So you won't have to wait for years to create a
> GB18030 font, using UCS-4 mappings...
Which font tool currently support generating TTF with format 12? While
it is true the font format and application software (such as mozilla I
wrote, WinXP, Office XP, etc) is ready to deal with it, not many font
tools which I know can create TTF with format 12 that are design for
someone claimed himself as "don't know beans about fonts" to "creat a
test font that contains ... \u20050" now.
-- -- Frank Yung-Fong Tang Šýštém Årçhîtéçt, Iñtërnâtiônàl Dèvélôpmeñt, AOL Intèrâçtívë Sërviçes AIM:yungfongta mailto:email@example.com Tel:650-937-2913 Yahoo! Msg: frankyungfongtan John 3:16 "For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. Does your software display Thai language text correctly for Thailand users? -> Basic Conceptof Thai Language linked from Frank Tang's Iñtërnâtiônàlizætiøn Secrets Want to translate your English text to something Thailand users can understand ? -> Try English-to-Thai machine translation at http://c3po.links.nectec.or.th/parsit/
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