With the help of Source Han Serif (思源宋体), one can pseudo-encode some unencoded glyphs, such as the following Chinese character:

enter image description here

One can do this through the use of their IDSes (Ideographic Description Sequences) and the 'ccmp' (Glyph Composition/Decomposition) GSUB feature. The IDSes are ⿺ 辶⿳穴⿰月⿰⿲⿱幺長⿱言馬⿱幺長刂心 (traditional) and ⿺ 辶⿳穴⿰月⿰⿲⿱幺长⿱言马⿱幺长刂心 (simplified).

How can we do that in LaTeX?

(Note: the IDSes may not display normally on your computer!)

More information can be found in Designing & Implementing Biáng and IDS + OpenType: Pseudo-encoding Unencoded Glyphs.

  • Interesting question but I have no answer. My only guess is to try using XeTeX since it supports Unicode out of the box (no need for inputenc, fontenc) and allows for the easier implementation of fonts. – Huang_d Jul 8 '17 at 17:03
  • You could work around by designing the biáng character in Metafont and put it in via a font call where-ever necessary. I leave the details of how to do that to the font experts here. Other work-arounds: Put it as a high-resolution image where necessary (for example as .eps for proper scaling) or draw it with tikz (difficult but achievable). – Huang_d Jul 8 '17 at 17:09
  • Related, though it has no answer: tex.stackexchange.com/q/367113/117534 – Troy Jul 8 '17 at 18:07
  • TUGboat, Volume 24 (2003), No. 1 — Proceedings of the 2003 Annual Meeting, contains an article "Chinese character synthesis using METAPOST" by Yiu and Wong that attempts to develop a character building system similar to the IDS. I don't know what ever came out of that effort but maybe you can follow up on their work. – Huang_d Jul 8 '17 at 20:04
  • @Troy It's not related. It is an exact duplicate. – Henri Menke Jul 8 '17 at 22:11

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