It was reported from some Chinese and Japanese users that there exist fonts without "names" field. For example, the entry for a valid font is written in otfl-names.lua as
{
["familyname"]="TeXGyreTermes",
["filename"]={ "texgyretermes-regular.otf", false },
["fontname"]="TeXGyreTermes-Regular",
["fontstyle_name"]="Regular",
["fullname"]="TeXGyreTermes-Regular",
["names"]={
["family"]="TeX Gyre Termes",
["fullname"]="TeXGyreTermes-Regular",
["psname"]="TeXGyreTermes-Regular",
["subfamily"]="Regular",
},
["size"]={ 100, 200, 50 },
["slant"]=0,
["weight"]=400,
["width"]=5,
}
But entries for some Chinese and Japanese fonts do not have "names" field (["names"]=nil). When these fonts exist on your system and you use luaotfload, the following error occurs:
! LuaTeX error ...1/texmf-dist/tex/luatex/luaotfload/otfl-font-nms.lua:109: att
empt to index field 'names' (a nil value).
<to be read again>
\scan_stop:
l.5 \setmainfont{TeXGyreTermes}
Note that this error occurs even when you load valid fonts (in the above example, the loaded font is TeXGyreTermes).
I don't know whether the fonts without "names" field are valid or invalid. In my opinion, luaotfload should work without the error even if otfl-names.lua includes such invalid entries. Or another solution is that mkluatexfontdb simply ignores such invalid fonts. Hironori Kitagawa wrote a patch for the latter solution.
Of course, I know there is otfl-blacklist.cnf for problematic fonts. But this solution requires users to edit the blacklist file.
It was reported from some Chinese and Japanese users that there exist fonts without "names" field. For example, the entry for a valid font is written in otfl-names.lua as
But entries for some Chinese and Japanese fonts do not have "names" field (["names"]=nil). When these fonts exist on your system and you use luaotfload, the following error occurs:
Note that this error occurs even when you load valid fonts (in the above example, the loaded font is TeXGyreTermes).
I don't know whether the fonts without "names" field are valid or invalid. In my opinion, luaotfload should work without the error even if otfl-names.lua includes such invalid entries. Or another solution is that mkluatexfontdb simply ignores such invalid fonts. Hironori Kitagawa wrote a patch for the latter solution.
Of course, I know there is otfl-blacklist.cnf for problematic fonts. But this solution requires users to edit the blacklist file.