diff options
| -rw-r--r-- | src/luaotfload-auxiliary.lua | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/luaotfload-auxiliary.lua b/src/luaotfload-auxiliary.lua index 6ba21e0..35f8f2b 100644 --- a/src/luaotfload-auxiliary.lua +++ b/src/luaotfload-auxiliary.lua @@ -173,25 +173,30 @@ local set_capheight = function (fontdata) local shared = fontdata.shared local parameters = fontdata.parameters local capheight - if shared and shared.rawdata.metadata.pfminfo then + if shared + and shared.rawdata.metadata + and shared.rawdata.metadata.pfminfo + then local units_per_em = parameters.units local size = parameters.size local os2_capheight = shared.rawdata.metadata.pfminfo.os2_capheight - if os2_capheight > 0 then + if capheight and os2_capheight > 0 then capheight = os2_capheight / units_per_em * size else - local X8 = stringbyte"X" - if fontdata.characters[X8] then - capheight = fontdata.characters[X8].height + local X8_str = stringbyte"X" + local X8_chr = fontdata.characters[X8_str] + if X8_chr then + capheight = X8_chr.height else capheight = parameters.ascender / units_per_em * size end end else - local X8 = stringbyte"X" - if fontdata.characters[X8] then - capheight = fontdata.characters[X8].height + local X8_str = stringbyte "X" + local X8_chr = fontdata.characters[X8_str] + if X8_chr then + capheight = X8_chr.height end end if capheight then |