Support Source Code Pro ITALICS? about source-han-code-jp

[kenlunde]

Due to the way in which Source Han Code JP is derived from Source Han Sans, in that it retains the CIDs from the original 65,535-glyph glyph set, building an italic version is not as easy as one would think.

Of course, it would be possible to build Source Han Code JP Italic as separate font resources, but all of the non-Latin glyphs would be the same as the non-italic version, which represents a lot of wasted space.

It is also possible to include the italic glyphs using different CIDs and using the 'ital' GSUB feature, but that would require forking the glyph set, which would make it difficult to extend Source Han Code to support other languages, and the 'ital' GSUB feature is not broadly supported.

[kenlunde]

If you want to do this on your own, it would be useful for @hatchzo to include in the README.md file the steps for converting the Source Code Pro glyphs into a form that was used in Source Han Code JP, to include a list of what CIDs were replaced, and a mapping table from Source Code Pro glyph names to Source Han Code JP CIDs (so that the AFDKO mergeFonts can be used to easily insert the italic glyphs).

[zchee]

Thanks reply.
I understand.
It is quite difficult :(

@hatchzo to include in the README.md file the steps for converting the Source Code Pro glyphs into a form that was used in Source Han Code JP, to include a list of what CIDs were replaced, and a mapping table from Source Code Pro glyph names to Source Han Code JP CIDs (so that the AFDKO mergeFonts can be used to easily insert the italic glyphs).

Yes, Please tell me how to make.
I'm waiting for @hatchzo 's reply.

BTW, I have another question so I will post the issue.

[hatchzo]

I am just curious to make Source Han Code JP Italic, because I don't know Japanese mono-space font which supports italic latin glyphs. But I can't guarantee anything about making the font.

[ShikiSuen]

You could use FontForge to make it by yourself. They are all CID fonts.
You simply open a font and replace its Latin part with all glyphs come from Source Code Pro Italic.

[hatchzo]

Now, Roman Italic is available in Source Han Code JP v2.000.