diff options
Diffstat (limited to 'luaotfload-database.lua')
| -rw-r--r-- | luaotfload-database.lua | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/luaotfload-database.lua b/luaotfload-database.lua index 8faeba2..beef5b1 100644 --- a/luaotfload-database.lua +++ b/luaotfload-database.lua @@ -383,25 +383,20 @@ Even if we find a matching font eventually, the next time the user compiles Eir document E will have to stand through the delay again. Thus, some caching of results -- even between runs -- is in order. -We’ll just store successful lookups in the database in a record of -the respective lookup type. +We’ll just store successful name: lookups in a separate cache file. type lookup_cache = (string, (string * num)) dict -TODO: +Complete, needs testing: × 1) add cache to dbobj × 2) wrap lookups in cached versions × 3) make caching optional (via the config table) for debugging × 4) make names_update() cache aware (nil if “force”) × 5) add logging × 6) add cache control to luaotfload-tool - × 7) incr db version - 8) wishlist: save cache only at the end of a run - 9) ??? - n) PROFIT!!! + × 7) incr db version (now 2.203) + × 8) save cache only at the end of a run -The name lookup requires both the “name” and some other -keys, so we’ll concatenate them. The spec is modified in place (ugh), so we’ll have to catalogue what fields actually influence its behavior. @@ -416,20 +411,11 @@ Idk what the “spec” resolver is for. * name: contains both the name resolver from luatex-fonts and resolve() below -The following fields of a resolved spec need to be cached: ---doc]]-- -local cache_fields = { - "forced", "hash", "lookup", "name", "resolved", "sub", -} - ---[[doc-- From my reading of font-def.lua, what a resolver does is basically rewrite the “name” field of the specification record with the resolution. Also, the fields “resolved”, “sub”, “force” etc. influence the outcome. -We’ll just cache a deep copy of the entire spec as it leaves the -resolver, lest we want to worry if we caught all the details. --doc]]-- --- 'a -> 'a -> table -> (string * int|boolean * boolean) @@ -459,12 +445,8 @@ resolve_cached = function (_, _, specification) names.lookups[request] = entry --- obviously, the updated cache needs to be stored. - --- for the moment, we write the entire db to disk - --- whenever the cache is updated. --- TODO this should trigger a save only once the --- document is compiled (finish_pdffile callback?) - --- TODO we should speed up writing by separating - --- the cache from the db report("both", 5, "cache", "saving updated cache") save_lookups() return filename, subfont, true |