/usr/share/texlive/texmf-dist/tex/luatex/luaotfload/otfl-font-nms.lua is in texlive-luatex 2012.20120611-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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version = 1.002,
comment = "companion to luaotfload.lua",
author = "Khaled Hosny and Elie Roux",
copyright = "Luaotfload Development Team",
license = "GNU GPL v2"
}
fonts = fonts or { }
fonts.names = fonts.names or { }
local names = fonts.names
local names_dir = "luatex-cache/generic/names"
names.version = 2.009 -- not the same as in context
names.data = nil
names.path = {
basename = "otfl-names.lua",
localdir = file.join(kpse.expand_var("$TEXMFVAR"), names_dir),
systemdir = file.join(kpse.expand_var("$TEXMFSYSVAR"), names_dir),
}
local splitpath, expandpath = file.split_path, kpse.expand_path
local glob, basename = dir.glob, file.basename
local upper, lower, format = string.upper, string.lower, string.format
local gsub, match, rpadd = string.gsub, string.match, string.rpadd
local gmatch, sub, find = string.gmatch, string.sub, string.find
local utfgsub = unicode.utf8.gsub
local trace_short = false --tracing adapted to rebuilding of the database inside a document
local trace_search = false --trackers.register("names.search", function(v) trace_search = v end)
local trace_loading = false --trackers.register("names.loading", function(v) trace_loading = v end)
local function sanitize(str)
if str then
return utfgsub(lower(str), "[^%a%d]", "")
else
return str -- nil
end
end
local function fontnames_init()
return {
mappings = { },
status = { },
version = names.version,
}
end
local function load_names()
local localpath = file.join(names.path.localdir, names.path.basename)
local systempath = file.join(names.path.systemdir, names.path.basename)
local kpsefound = kpse.find_file(names.path.basename)
local foundname
local data
if kpsefound and file.isreadable(kpsefound) then
data = dofile(kpsefound)
foundname = kpsefound
elseif file.isreadable(localpath) then
data = dofile(localpath)
foundname = localpath
elseif file.isreadable(systempath) then
data = dofile(systempath)
foundname = systempath
end
if data then
logs.info("Font names database loaded: " .. foundname)
else
logs.info([[Font names database not found, generating new one.
This can take several minutes; please be patient.]])
data = names.update(fontnames_init())
names.save(data)
end
return data
end
local synonyms = {
regular = { "normal", "roman", "plain", "book", "medium" },
bold = { "boldregular", "demi", "demibold" },
italic = { "regularitalic", "normalitalic", "oblique", "slanted" },
bolditalic = { "boldoblique", "boldslanted", "demiitalic", "demioblique", "demislanted", "demibolditalic" },
}
local loaded = false
local reloaded = false
function names.resolve(specification)
local name = sanitize(specification.name)
local style = sanitize(specification.style) or "regular"
local size
if specification.optsize then
size = tonumber(specification.optsize)
elseif specification.size then
size = specification.size / 65536
end
if not loaded then
names.data = names.load()
loaded = true
end
local data = names.data
if type(data) == "table" and data.version == names.version then
if data.mappings then
local found = { }
for _,face in next, data.mappings do
local family = sanitize(face.names.family)
local subfamily = sanitize(face.names.subfamily)
local fullname = sanitize(face.names.fullname)
local psname = sanitize(face.names.psname)
local fontname = sanitize(face.fontname)
local pfullname = sanitize(face.fullname)
local optsize, dsnsize, maxsize, minsize
if #face.size > 0 then
optsize = face.size
dsnsize = optsize[1] and optsize[1] / 10
-- can be nil
maxsize = optsize[2] and optsize[2] / 10 or dsnsize
minsize = optsize[3] and optsize[3] / 10 or dsnsize
end
if name == family then
if subfamily == style then
if optsize then
if dsnsize == size
or (size > minsize and size <= maxsize) then
found[1] = face
break
else
found[#found+1] = face
end
else
found[1] = face
break
end
elseif synonyms[style] and
table.contains(synonyms[style], subfamily) then
if optsize then
if dsnsize == size
or (size > minsize and size <= maxsize) then
found[1] = face
break
else
found[#found+1] = face
end
else
found[1] = face
break
end
elseif subfamily == "regular" or
table.contains(synonyms.regular, subfamily) then
found.fallback = face
end
else
if name == fullname
or name == pfullname
or name == fontname
or name == psname then
if optsize then
if dsnsize == size
or (size > minsize and size <= maxsize) then
found[1] = face
break
else
found[#found+1] = face
end
else
found[1] = face
break
end
end
end
end
if #found == 1 then
if kpse.lookup(found[1].filename[1]) then
logs.report("load font",
"font family='%s', subfamily='%s' found: %s",
name, style, found[1].filename[1])
return found[1].filename[1], found[1].filename[2]
end
elseif #found > 1 then
-- we found matching font(s) but not in the requested optical
-- sizes, so we loop through the matches to find the one with
-- least difference from the requested size.
local closest
local least = math.huge -- initial value is infinity
for i,face in next, found do
local dsnsize = face.size[1]/10
local difference = math.abs(dsnsize-size)
if difference < least then
closest = face
least = difference
end
end
if kpse.lookup(closest.filename[1]) then
logs.report("load font",
"font family='%s', subfamily='%s' found: %s",
name, style, closest.filename[1])
return closest.filename[1], closest.filename[2]
end
elseif found.fallback then
return found.fallback.filename[1], found.fallback.filename[2]
end
-- no font found so far
if not reloaded then
-- try reloading the database
names.data = names.update(names.data)
names.save(names.data)
reloaded = true
return names.resolve(specification)
else
-- else, fallback to filename
return specification.name, false
end
end
else
if not reloaded then
names.data = names.update()
names.save(names.data)
reloaded = true
return names.resolve(specification)
else
return specification.name, false
end
end
end
names.resolvespec = names.resolve
function names.set_log_level(level)
if level == 2 then
trace_loading = true
elseif level >= 3 then
trace_loading = true
trace_search = true
end
end
local lastislog = 0
local function log(fmt, ...)
lastislog = 1
texio.write_nl(format("luaotfload | %s", format(fmt,...)))
io.flush()
end
logs = logs or { }
logs.report = logs.report or log
logs.info = logs.info or log
local function font_fullinfo(filename, subfont, texmf)
local t = { }
local f = fontloader.open(filename, subfont)
if not f then
if trace_loading then
logs.report("error: failed to open %s", filename)
end
return
end
local m = fontloader.to_table(f)
fontloader.close(f)
collectgarbage('collect')
-- see http://www.microsoft.com/typography/OTSPEC/features_pt.htm#size
if m.fontstyle_name then
for _,v in next, m.fontstyle_name do
if v.lang == 1033 then
t.fontstyle_name = v.name
end
end
end
if m.names then
for _,v in next, m.names do
if v.lang == "English (US)" then
t.names = {
-- see
-- http://developer.apple.com/textfonts/
-- TTRefMan/RM06/Chap6name.html
fullname = v.names.compatfull or v.names.fullname,
family = v.names.preffamilyname or v.names.family,
subfamily= t.fontstyle_name or v.names.prefmodifiers or v.names.subfamily,
psname = v.names.postscriptname
}
end
end
else
-- no names table, propably a broken font
if trace_loading then
logs.report("broken font rejected: %s", basefile)
end
return
end
t.fontname = m.fontname
t.fullname = m.fullname
t.familyname = m.familyname
t.filename = { texmf and basename(filename) or filename, subfont }
t.weight = m.pfminfo.weight
t.width = m.pfminfo.width
t.slant = m.italicangle
-- don't waste the space with zero values
t.size = {
m.design_size ~= 0 and m.design_size or nil,
m.design_range_top ~= 0 and m.design_range_top or nil,
m.design_range_bottom ~= 0 and m.design_range_bottom or nil,
}
return t
end
local function load_font(filename, fontnames, newfontnames, texmf)
local newmappings = newfontnames.mappings
local newstatus = newfontnames.status
local mappings = fontnames.mappings
local status = fontnames.status
local basefile = texmf and basename(filename) or filename
if filename then
if table.contains(names.blacklist, filename) or
table.contains(names.blacklist, basename(filename)) then
if trace_search then
logs.report("ignoring font '%s'", filename)
end
return
end
local timestamp, db_timestamp
db_timestamp = status[basefile] and status[basefile].timestamp
timestamp = lfs.attributes(filename, "modification")
local index_status = newstatus[basefile] or (not texmf and newstatus[basename(filename)])
if index_status and index_status.timestamp == timestamp then
-- already indexed this run
return
end
newstatus[basefile] = newstatus[basefile] or { }
newstatus[basefile].timestamp = timestamp
newstatus[basefile].index = newstatus[basefile].index or { }
if db_timestamp == timestamp and not newstatus[basefile].index[1] then
for _,v in next, status[basefile].index do
local index = #newstatus[basefile].index
newmappings[#newmappings+1] = mappings[v]
newstatus[basefile].index[index+1] = #newmappings
end
if trace_loading then
logs.report("font already indexed: %s", basefile)
end
return
end
local info = fontloader.info(filename)
if info then
if type(info) == "table" and #info > 1 then
for i in next, info do
local fullinfo = font_fullinfo(filename, i-1, texmf)
if not fullinfo then
return
end
local index = newstatus[basefile].index[i]
if newstatus[basefile].index[i] then
index = newstatus[basefile].index[i]
else
index = #newmappings+1
end
newmappings[index] = fullinfo
newstatus[basefile].index[i] = index
end
else
local fullinfo = font_fullinfo(filename, false, texmf)
if not fullinfo then
return
end
local index
if newstatus[basefile].index[1] then
index = newstatus[basefile].index[1]
else
index = #newmappings+1
end
newmappings[index] = fullinfo
newstatus[basefile].index[1] = index
end
else
if trace_loading then
logs.report("failed to load %s", basefile)
end
end
end
end
local function path_normalize(path)
--[[
path normalization:
- a\b\c -> a/b/c
- a/../b -> b
- /cygdrive/a/b -> a:/b
- reading symlinks under non-Win32
- using kpse.readable_file on Win32
]]
if os.type == "windows" or os.type == "msdos" or os.name == "cygwin" then
path = path:gsub('\\', '/')
path = path:lower()
path = path:gsub('^/cygdrive/(%a)/', '%1:/')
end
if os.type ~= "windows" and os.type ~= "msdos" then
local dest = lfs.readlink(path)
if dest then
if kpse.readable_file(dest) then
path = dest
elseif kpse.readable_file(file.join(file.dirname(path), dest)) then
path = file.join(file.dirname(path), dest)
else
-- broken symlink?
end
end
end
path = file.collapse_path(path)
return path
end
fonts.path_normalize = path_normalize
names.blacklist = { }
local function read_blacklist()
local files = {
kpse.lookup("otfl-blacklist.cnf", {all=true, format="tex"})
}
local blacklist = names.blacklist
if files and type(files) == "table" then
for _,v in next, files do
for line in io.lines(v) do
line = line:strip() -- to get rid of lines like " % foo"
if line:find("^%%") or line:is_empty() then
-- comment or empty line
else
line = line:split("%")[1]
line = line:strip()
if trace_search then
logs.report("blacklisted file: %s", line)
end
blacklist[#blacklist+1] = line
end
end
end
end
end
local font_extensions = { "otf", "ttf", "ttc", "dfont" }
local function scan_dir(dirname, fontnames, newfontnames, texmf)
--[[
This function scans a directory and populates the list of fonts
with all the fonts it finds.
- dirname is the name of the directory to scan
- names is the font database to fill
- texmf is a boolean saying if we are scanning a texmf directory
]]
local list, found = { }, { }
local nbfound = 0
if trace_search then
logs.report("scanning '%s'", dirname)
end
for _,i in next, font_extensions do
for _,ext in next, { i, upper(i) } do
found = glob(format("%s/**.%s$", dirname, ext))
-- note that glob fails silently on broken symlinks, which happens
-- sometimes in TeX Live.
if trace_search then
logs.report("%s '%s' fonts found", #found, ext)
end
nbfound = nbfound + #found
table.append(list, found)
end
end
if trace_search then
logs.report("%d fonts found in '%s'", nbfound, dirname)
end
for _,file in next, list do
file = path_normalize(file)
if trace_loading then
logs.report("loading font: %s", file)
end
load_font(file, fontnames, newfontnames, texmf)
end
end
local function scan_texmf_fonts(fontnames, newfontnames)
--[[
This function scans all fonts in the texmf tree, through kpathsea
variables OPENTYPEFONTS and TTFONTS of texmf.cnf
]]
if expandpath("$OSFONTDIR"):is_empty() then
logs.info("Scanning TEXMF fonts...")
else
logs.info("Scanning TEXMF and OS fonts...")
end
local fontdirs = expandpath("$OPENTYPEFONTS"):gsub("^\.", "")
fontdirs = fontdirs .. expandpath("$TTFONTS"):gsub("^\.", "")
if not fontdirs:is_empty() then
for _,d in next, splitpath(fontdirs) do
scan_dir(d, fontnames, newfontnames, true)
end
end
end
--[[
For the OS fonts, there are several options:
- if OSFONTDIR is set (which is the case under windows by default but
not on the other OSs), it scans it at the same time as the texmf tree,
in the scan_texmf_fonts.
- if not:
- under Windows and Mac OSX, we take a look at some hardcoded directories
- under Unix, we read /etc/fonts/fonts.conf and read the directories in it
This means that if you have fonts in fancy directories, you need to set them
in OSFONTDIR.
]]
local function read_fonts_conf(path, results)
--[[
This function parses /etc/fonts/fonts.conf and returns all the dir it finds.
The code is minimal, please report any error it may generate.
]]
local f = io.open(path)
if not f then
error("Cannot open the file "..path)
end
local incomments = false
for line in f:lines() do
while line and line ~= "" do
-- spaghetti code... hmmm...
if incomments then
local tmp = find(line, '-->')
if tmp then
incomments = false
line = sub(line, tmp+3)
else
line = nil
end
else
local tmp = find(line, '<!--')
local newline = line
if tmp then
-- for the analysis, we take everything that is before the
-- comment sign
newline = sub(line, 1, tmp-1)
-- and we loop again with the comment
incomments = true
line = sub(line, tmp+4)
else
-- if there is no comment start, the block after that will
-- end the analysis, we exit the while loop
line = nil
end
for dir in gmatch(newline, '<dir>([^<]+)</dir>') do
-- now we need to replace ~ by kpse.expand_path('~')
if sub(dir, 1, 1) == '~' then
dir = file.join(kpse.expand_path('~'), sub(dir, 2))
end
-- we exclude paths with texmf in them, as they should be
-- found anyway
if not find(dir, 'texmf') then
results[#results+1] = dir
end
end
for include in gmatch(newline, '<include[^<]*>([^<]+)</include>') do
-- include here can be four things: a directory or a file,
-- in absolute or relative path.
if sub(include, 1, 1) == '~' then
include = file.join(kpse.expand_path('~'),sub(include, 2))
-- First if the path is relative, we make it absolute:
elseif not lfs.isfile(include) and not lfs.isdir(include) then
include = file.join(file.dirname(path), include)
end
if lfs.isfile(include) then
-- maybe we should prevent loops here?
-- we exclude path with texmf in them, as they should
-- be found otherwise
read_fonts_conf(include, results)
elseif lfs.isdir(include) then
for _,f in next, glob(file.join(include, "*.conf")) do
read_fonts_conf(f, results)
end
end
end
end
end
end
f:close()
return results
end
-- for testing purpose
names.read_fonts_conf = read_fonts_conf
local function get_os_dirs()
if os.name == 'macosx' then
return {
file.join(kpse.expand_path('~'), "Library/Fonts"),
"/Library/Fonts",
"/System/Library/Fonts",
"/Network/Library/Fonts",
}
elseif os.type == "windows" or os.type == "msdos" or os.name == "cygwin" then
local windir = os.getenv("WINDIR")
return { file.join(windir, 'Fonts') }
else
return read_fonts_conf("/etc/fonts/fonts.conf", {})
end
end
local function scan_os_fonts(fontnames, newfontnames)
--[[
This function scans the OS fonts through
- fontcache for Unix (reads the fonts.conf file and scans the directories)
- a static set of directories for Windows and MacOSX
]]
logs.info("Scanning OS fonts...")
if trace_search then
logs.info("Searching in static system directories...")
end
for _,d in next, get_os_dirs() do
scan_dir(d, fontnames, newfontnames, false)
end
end
local function update_names(fontnames, force)
--[[
The main function, scans everything
- fontnames is the final table to return
- force is whether we rebuild it from scratch or not
]]
logs.info("Updating the font names database:")
if force then
fontnames = fontnames_init()
else
if not fontnames then
fontnames = names.load()
end
if fontnames.version ~= names.version then
fontnames = fontnames_init()
if trace_search then
logs.report("No font names database or old one found; "
.."generating new one")
end
end
end
local newfontnames = fontnames_init()
read_blacklist()
scan_texmf_fonts(fontnames, newfontnames)
if expandpath("$OSFONTDIR"):is_empty() then
scan_os_fonts(fontnames, newfontnames)
end
return newfontnames
end
local function save_names(fontnames)
local savepath = names.path.localdir
if not lfs.isdir(savepath) then
dir.mkdirs(savepath)
end
savepath = file.join(savepath, names.path.basename)
if file.iswritable(savepath) then
table.tofile(savepath, fontnames, true)
logs.info("Font names database saved: %s \n", savepath)
return savepath
else
logs.info("Failed to save names database\n")
return nil
end
end
local function scan_external_dir(dir)
local old_names, new_names
if loaded then
old_names = names.data
else
old_names = names.load()
loaded = true
end
new_names = table.copy(old_names)
scan_dir(dir, old_names, new_names)
names.data = new_names
end
names.scan = scan_external_dir
names.load = load_names
names.update = update_names
names.save = save_names
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