Re: [ft-devel] [FYI] MingLiU identifier

2010-11-17 Thread Werner LEMBERG
Here I collected the checksums of various versions of MingLiU. During the check, I found that recent MingLiU (post-Vista, and Microsoft Office for Mac) don't cause broken shape issue anymore. This is good to know. I checked various versions mentioned at:

Re: [ft-devel] [FYI] MingLiU identifier

2010-11-17 Thread mpsuzuki
Dear Werner, On Wed, 17 Nov 2010 12:03:27 +0100 (CET) Werner LEMBERG w...@gnu.org wrote: Microsoft Windows NT 4.0: ver 2.00 (1996-May-15, second release) tag cvt offset 0x0023dc7c length 0x02e4 checkSum 0x05bcf058 tag fpgm offset 0x0023df60 length 0x87c4 checkSum 0x28233bf1 tag

RE: [ft-devel] [FYI] MingLiU identifier

2010-11-17 Thread David Bevan
Some of these tables are very short (a total of only 44 bytes on the Mac), so what is the likelihood that they match tables in other fonts that don't require TT hinting? We need some guarantee that comparing these values will uniquely identify the relevant fonts. David %^ -Original

RE: [ft-devel] [FYI] MingLiU identifier

2010-11-17 Thread David Bevan
In general scope, I think, you raised a concern that the checksum in TTF header is too simple (it's a sum of 32-bit values of the table) to guarantee the identity. It's reasonable. My concern is that the (small) tables may actually be the same in a variety of fonts. If I check the fonts

Re: [ft-devel] [FYI] MingLiU identifier

2010-11-17 Thread mpsuzuki
On Wed, 17 Nov 2010 07:55:17 -0500 David Bevan david.be...@pb.com wrote: In general scope, I think, you raised a concern that the checksum in TTF header is too simple (it's a sum of 32-bit values of the table) to guarantee the identity. It's reasonable. My concern is that the (small) tables

Re: [ft-devel] Re: About Gsub table in opentype.

2010-11-17 Thread Behdad Esfahbod
On 11/16/10 22:47, Kenichi Handa wrote: I too want to switch from libotf to harfbuzz, but at the moment, harfbuzz is not released as an independent library (and APIs are still changing), I can't catch a good timing to shift to harfbuzz. Good to know. Maybe you're thinking of libm17n; that

Re: [ft-devel] Re: About Gsub table in opentype.

2010-11-17 Thread Kenichi Handa
In article 4ce433ae.6010...@behdad.org, Behdad Esfahbod beh...@behdad.org writes: I really hope to use libm17n's shaping engine from harfbuzz. A few years ago, I asked you to include libm17n-based shaping module in Pango, but there have been no progress, perhaps because Pango is going to