diff options
Diffstat (limited to 'luaotfload-database.lua')
| -rw-r--r-- | luaotfload-database.lua | 104 |
1 files changed, 81 insertions, 23 deletions
diff --git a/luaotfload-database.lua b/luaotfload-database.lua index 98b0975..b331629 100644 --- a/luaotfload-database.lua +++ b/luaotfload-database.lua @@ -189,7 +189,8 @@ local invalidchars = "[^%a%d]" local sanitize_fontname = function (str) if str ~= nil then - return utf8gsub (utf8lower (str), invalidchars, "") + str = utf8gsub (utf8lower (str), invalidchars, "") + return str end return nil end @@ -1269,12 +1270,12 @@ local get_size_info = function (metadata) return false end -local organize_namedata = function (metadata, basename, info) +local get_english_names = function (names, basename) local english_names - if metadata.names then - for _, raw_namedata in next, metadata.names do + if names then + for _, raw_namedata in next, names do if raw_namedata.lang == "English (US)" then english_names = raw_namedata.names end @@ -1287,23 +1288,48 @@ local organize_namedata = function (metadata, basename, info) return nil end + return english_names +end + +local organize_namedata = function (metadata, + english_names, + basename, + info) + + --print (english_names.family, "<>", english_names.preffamilyname) local fontnames = { --- see --- https://developer.apple.com/fonts/TTRefMan/RM06/Chap6name.html + --- http://www.microsoft.com/typography/OTSPEC/name.htm#NameIDs english = { + --- where a “compatfull” field is given, the value of “fullname” is + --- either identical or differs by separating the style + --- with a hyphen and omitting spaces. + --- Of the three “fullname” fields, this one appears to be the one + --- with the entire name given in a legible, + --- non-abbreviated fashion, for most fonts at any rate. + --- However, in some fonts (e.g. CMU) all three fields are + --- identical. fullname = english_names.compatfull or english_names.fullname, - family = english_names.preffamilyname - or english_names.family, - --prefmodifiers = english_names.prefmodifiers, --> style - --subfamily = english_names.subfamily, --> style + --- we keep both the “preferred family” and the “family” + --- values around since both are valid but can turn out + --- quite differently, e.g. with Latin Modern: + --- preffamily: “Latin Modern Sans”, + --- family: “LM Sans 10” + preffamily = english_names.preffamilyname, + family = english_names.family, + prefmodifiers = english_names.prefmodifiers, + subfamily = english_names.subfamily, psname = english_names.postscriptname, }, + metadata = { - pfullname = metadata.fullname, + fullname = metadata.fullname, fontname = metadata.fontname, metafamily = metadata.familyname, }, + info = { fullname = info.fullname, familyname = info.familyname, @@ -1311,13 +1337,24 @@ local organize_namedata = function (metadata, basename, info) }, } - -- see http://www.microsoft.com/typography/OTSPEC/features_pt.htm#size +-- print (fontnames.english.fullname, +-- fontnames.metadata.fullname, +-- fontnames.info.fullname) + if metadata.fontstyle_name then + --- not present in all fonts, often differs from the preferred + --- subfamily as well as subfamily fields, e.g. with LMSans10-BoldOblique: + --- subfamily: “Bold Italic” + --- prefmodifiers: “10 Bold Oblique” + --- fontstyle_name: “Bold Oblique” for _, name in next, metadata.fontstyle_name do if name.lang == 1033 then --- I hate magic numbers fontnames.fontstyle_name = name.name end end + + --print (fontnames.metadata.fontname, "|>", english_names.subfamily, "<>", english_names.prefmodifiers) + --print (fontnames.metadata.fontname, "|>", english_names.subfamily, "<>", fontnames.fontstyle_name) end return { @@ -1329,6 +1366,32 @@ local organize_namedata = function (metadata, basename, info) end +local organize_styledata = function (metadata, english_names, info) + local pfminfo = metadata.pfminfo + local names = metadata.names + +-- print (">", pfminfo.avgwidth, +-- (metadata.italicangle == info.italicangle) and "T" or +-- string.format ("%f / %f", metadata.italicangle, info.italicangle), +-- pfminfo.width, pfminfo.weight, info.weight) + return { + -- see http://www.microsoft.com/typography/OTSPEC/features_pt.htm#size + size = get_size_info (metadata), + weight = { + pfminfo.weight, -- integer (multiple of 100?) + sanitize_fontname (info.weight), -- style name + }, + width = pfminfo.width, + italicangle = metadata.italicangle, +-- italicangle = { +-- metadata.italicangle, -- float +-- info.italicangle, -- truncated to integer point size? +-- }, + --- this is for querying, see www.ntg.nl/maps/40/07.pdf for details + units_per_em = metadata.units_per_em, + version = metadata.version, + } +end --[[doc-- The data inside an Opentype font file can be quite heterogeneous. @@ -1344,25 +1407,20 @@ ot_fullinfo = function (filename, basename, format, info) - local styles = { } local metadata = load_font_file (filename, subfont) if not metadata then return nil end - local namedata = organize_namedata (metadata, basename, info) - - - local style = { - size = get_size_info (metadata), - weight = metadata.pfminfo.weight, - width = metadata.pfminfo.width, - slant = metadata.italicangle, - --- this is for querying, see www.ntg.nl/maps/40/07.pdf for details - units_per_em = metadata.units_per_em, - version = metadata.version, - } + local english_names = get_english_names (metadata.names, basename) + local namedata = organize_namedata (metadata, + english_names, + basename, + info) + local style = organize_styledata (metadata, + english_names, + info) return { file = { base = basename, |