Rewrite

Now we read $OSFONTDIR variable to load system fonts, $OPENTYPEFONTS and
$TTFONTS to load fonts in texmf tree. Fontconfig support might be added
later.

1 files changed, 123 insertions, 0 deletions

diff --git a/luaotfload-fonts.lua b/luaotfload-fonts.lua
new file mode 100644
index 0000000..f49aa7b
--- /dev/null
+++ b/luaotfload-fonts.lua
@@ -0,0 +1,123 @@
+luaotfload              = luaotfload or { }
+luaotfload.fonts        = { }
+
+luaotfload.fonts.module = {
+    name          = "luaotfload.fonts",
+    version       = 1.001,
+    date          = "2010/01/12",
+    description   = "luaotfload font database.",
+    author        = "Khaled Hosny",
+    copyright     = "Khaled Hosny",
+    license       = "CC0"
+}
+
+kpse.set_program_name("luatex")
+
+require("luaextra.lua")
+require("otfl-luat-dum.lua")
+
+local upper, splitpath, expandpath, glob = string.upper, file.split_path, kpse.expand_path, dir.glob
+
+luaotfload.fonts.basename = "otfl-names.lua"
+luaotfload.fonts.version  = 1.001
+luaotfload.fonts.log      = false
+
+local function log(...)
+    if luaotfload.fonts.log then
+        logs.simple(...)
+    end
+end
+
+local function info(...)
+    logs.simple(...)
+end
+
+local function clean(str)
+    return string.gsub(string.lower(str), "[^%a%d]", "")
+end
+
+local function load_font(filename, names)
+    local mappings = names.mappings
+    local key
+    if filename then
+        local info = fontloader.info(filename)
+        if info then
+            if type(info) == "table" and #info > 1 then
+                for index,sub in ipairs(info) do
+                    key = clean(sub.fullname)
+                    if not mappings[key] then
+                        mappings[key] = { sub.fullname, filename, index }
+                    else
+                        log("Font '%s' already exists.", key)
+                    end
+                end
+            else
+                key = clean(info.fullname)
+                if not mappings[key] then
+                    mappings[key] = { info.fullname, filename }
+                else
+                    log("Font '%s' already exists.", key)
+                end
+            end
+        else
+            log("Failed to load %s", filename)
+        end
+    end
+end
+
+local function scan_dir(dirname, names, recursive)
+    local list, found = { }, { }
+    for _,ext in ipairs { "otf", "ttf", "ttc", "dfont" } do
+        if recursive then pat = "/**." else pat = "/*." end
+        log("Scanning '%s' for '%s' fonts", dirname, ext)
+        found = glob(dirname .. pat .. ext)
+        log("%s fonts found", #found)
+        table.append(list, found)
+
+        log("Scanning '%s' for '%s' fonts", dirname, upper(ext))
+        found = glob(dirname .. pat .. upper(ext))
+        log("%s fonts found", #found)
+        table.append(list, found)
+    end
+    for _,fnt in ipairs(list) do
+        load_font(fnt, names)
+    end
+end
+
+local function scan_os_fonts(names)
+    local fontdirs
+    fontdirs = expandpath("$OSFONTDIR")
+    fontdirs = splitpath(fontdirs, ":")
+    for _,d in ipairs(fontdirs) do
+        scan_dir(d, names, true)
+    end
+end
+
+local function scan_txmf_tree(names)
+    local fontdirs = expandpath("$OPENTYPEFONTS")
+    fontdirs = fontdirs .. expandpath("$TTFONTS")
+    fontdirs = splitpath(fontdirs, ":")
+    for _,d in ipairs(fontdirs) do
+        scan_dir(d, names)
+    end
+end
+
+local function generate()
+    local fnames = {
+        mappings = { },
+        version  = luaotfload.fonts.version
+    }
+
+    scan_os_fonts(fnames)
+    scan_txmf_tree(fnames)
+    logs.simple("%s fonts saved in the database", #table.keys(fnames.mappings))
+    io.savedata(luaotfload.fonts.basename, table.serialize(fnames, true))
+    logs.simple("Saved font names database in %s\n", luaotfload.fonts.basename)
+end
+
+luaotfload.fonts.scan     = scan_dir
+luaotfload.fonts.generate = generate
+
+if arg[0] == "luaotfload-fonts.lua" then
+    generate()
+end