Hi Brian, On Sat, Apr 20, 2024 at 02:11:55PM -0600, Brian Inglis wrote: > On 2024-04-20 09:52, G. Branden Robinson wrote: > > At 2024-04-20T14:26:17+0200, Alejandro Colomar wrote: > > > First problem: > > > > > > In the Unifont, I don't see a "Regular" font. I assumed I should take > > > the unifont.otf file. > > Hi folks, > > That's the BMP ~63.5k characters ~57k glyphs; unifont_upper are the SMP > ~57.5k glyphs with specialized scripts and extended graphics like emojis: > unlikely to be required for any LGC man pages. > > https://unifoundry.com/unifont/index.html Thanks! > > Since (I believe I saw you say that) you're using GNU Unifont only to > > patch up missing code point coverage from other fonts, in your > > application it probably makes sense to specify it as a "special" font. > > [...] > OpenType fonts are normally designed with an 1000 units/em, and Truetype may > be 1024 or 2048 units/em, so should use 333 or maybe 300 if you prefer a > tighter look, close to your suggestion. > > $ ttfdump /usr/share/fonts/urw-base35/NimbusRoman-Regular.otf | awk "/'head'/,/^$/" > 6. 'head' - checksum = 0x0cdb53f2, offset = 0x00016f4c, len = 54 > 7. 'hhea' - checksum = 0x06b6057b, offset = 0x00016f84, len = 36 > 8. 'hmtx' - checksum = 0x35d9ae6c, offset = 0x00016fa8, len = 3420 > 9. 'maxp' - checksum = 0x03575000, offset = 0x00017d04, len = 6 > 10. 'name' - checksum = 0x8993f63c, offset = 0x00017d0c, len = 620 > 11. 'post' - checksum = 0xffb10032, offset = 0x00017f78, len = 32 > > 'head' Table - Font Header > -------------------------- > 'head' version: 1.0 > fontReversion: 1.0 > checkSumAdjustment: 0x69d6e98e > magicNumber: 0x5f0f3cf5 > flags: 0x0003 > unitsPerEm: 1000 > created: 0x00000000d5420807 > modified: 0x00000000d5420807 > xMin: -168 > yMin: -281 > xMax: 1000 > yMax: 1053 > macStyle bits: 0x0000 > lowestRecPPEM: 3 > fontDirectionHint: 2 > indexToLocFormat: 0 > glyphDataFormat: 0 > > For comparison Tinos ttf substitute for Times Roman: > > $ ttfdump /usr/share/fonts/tinos/Tinos-Regular.ttf | awk "/'head'/,/^$/" > 12. 'head' - checksum = 0x0bd978fc, offset = 0x0000015c, len = 54 > 13. 'hhea' - checksum = 0x19811ca6, offset = 0x00000194, len = 36 > 14. 'hmtx' - checksum = 0xa4bce0e7, offset = 0x00000238, len = 13116 > 15. 'kern' - checksum = 0xa39da9f5, offset = 0x0008d6f8, len = 5220 > 16. 'loca' - checksum = 0x28e2bf88, offset = 0x0001a45c, len = 13120 > 17. 'maxp' - checksum = 0x10d405bc, offset = 0x000001b8, len = 32 > 18. 'name' - checksum = 0xc3ff0ad5, offset = 0x0008eb5c, len = 2052 > 19. 'post' - checksum = 0xe841b7c5, offset = 0x0008f360, len = 34664 > 20. 'prep' - checksum = 0xbd48485c, offset = 0x00019b40, len = 1550 > > 'head' Table - Font Header > -------------------------- > 'head' version: 1.0 > fontReversion: 1.20736 > checkSumAdjustment: 0x84b246c2 > magicNumber: 0x5f0f3cf5 > flags: 0x001b > unitsPerEm: 2048 > created: 0x00000000c844d0ce > modified: 0x00000000d25f0c4c > xMin: -1114 > yMin: -797 > xMax: 5728 > yMax: 2068 > macStyle bits: 0x0000 > lowestRecPPEM: 9 > fontDirectionHint: 2 > indexToLocFormat: 1 > glyphDataFormat: 0 > > > [1] I do observe that the URW font descriptions shipped by groff include > > a special character called "space". Syntactically, this would be > > accessed within a groff document via a special character escape > > sequence: `\[space]`. I've never seen a document do this. I admit > > that I don't have any idea why this is present or what its semantics > > are: I need a PostScript or PDF expert to tell me.[2] It does occur > > to me that we might enhance afmtodit make of use of it as the > > default "spacewidth". > > > > [2] Or I can self-help; I have copies of the _PostScript Language > > Reference Manual_ (3rd ed.) and a version of ISO 32000 lying around. > > But Unifont uses 64 units/em, so 20-21? Thanks!!! I've tried to build the Chinese man-pages book for shadow, but I still don't get Chinese letters, so I wasn't able to test this value, but I'll try debugging it in the following days. Anyway, I've applied this value in a commit that I'll push tomorrow to the Linux man-pages' master branch. Have a lovely night! Alex -- <https://www.alejandro-colomar.es/>
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